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@TuAFBogey TuAFBogey commented Jan 9, 2026

Summary

Add support for Nuvoton MA35D1 SoC and NuMaker IoT MA35D16F90 board.

Hardware

  • SoC: Nuvoton MA35D1 (dual Cortex-A35 @ 800MHz + Cortex-M4)
  • RAM: 512MB DDR
  • Storage: SD card, eMMC, NAND, SPI NOR/NAND
  • Interfaces: 2x Gigabit Ethernet, USB 2.0, CAN-FD, UART, SPI, I2C

Boot Chain

Mask ROM → TF-A (BL2) → BL31 → OP-TEE (BL32) → U-Boot (BL33) → Linux

Pending: Vendor Kernel Modules

Nuvoton provides closed-source Verisilicon licensed drivers:

  • dcultrafb.ko - DCUltra display controller
  • ma35d1-vc8000.ko - H.264 video codec
  • galcore.ko - GPU driver

These require exact vermagic match (5.10.140-vendor-nuvoton-ma35d1).
Nuvoton is preparing custom builds for Armbian compatibility.

References

How Has This Been Tested?

  • Kernel boots successfully
  • Serial console works (ttyS0 @ 115200)
  • SD card boot and detection
  • Ethernet works (both ports)
  • Desktop (XFCE on Bookworm) works
  • USB works

Checklist

  • My code follows the style guidelines of this project
  • I have performed a self-review of my own code
  • My changes generate no new warnings

Summary by CodeRabbit

  • New Features
    • Added support for the Nuvoton MA35D1 platform and NuMaker IoT MA35D16F90 board.
    • New boot environment and enhanced boot flow with a default boot command and robust handling of kernel/initrd/device tree and overlays.
    • Vendor Linux defconfig enabling broad peripherals, networking, storage, USB, sensors, virtualization, and multiple filesystems.
    • MA35D1 build tooling: secure firmware/ATF/OP-TEE handling, image/header generation, and SD‑card image assembly.

✏️ Tip: You can customize this high-level summary in your review settings.

@coderabbitai
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coderabbitai bot commented Jan 9, 2026

📝 Walkthrough

Walkthrough

Adds Armbian MA35D1 support: new bootenv and comprehensive U-Boot bootscript, vendor kernel defconfig, family build integration (ATF/OP-TEE/U-Boot/header generation/SD image assembly), a U-Boot bootcmd patch, and a NuMaker MA35D16F90 board entry. (≤50 words)

Changes

Cohort / File(s) Summary
Boot env & bootscript
config/bootenv/nuvoton-ma35d1.txt, config/bootscripts/boot-nuvoton-ma35d1.cmd
New minimal bootenv and full U‑Boot bootscript: PARTUUID detection, armbianEnv import, console/earlycon/loglevel/docker options, kernel/initrd/fdt loading, FDT resize, kernel & user DT overlay apply with rollback, and final booti.
Kernel defconfig
config/kernel/linux-nuvoton-ma35d1-vendor.config
New Linux 5.10 vendor defconfig for MA35D1 enabling ARM64 platform drivers, NUMA/timers/preempt, cgroups/namespaces, broad peripheral, storage, networking, OP‑TEE and virtualization support.
Family build integration
config/sources/families/nuvoton-ma35d1.conf
New family config: ATF/OP‑TEE/U‑Boot/kernel sources and defaults, many global vars, exported helper functions, ATF/OP‑TEE/UBoot postprocessing, FIP/header generation, and SD image assembly logic.
U‑Boot bootcmd patch
patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
Enables CONFIG_USE_BOOTCOMMAND and sets CONFIG_BOOTCOMMAND to load/execute /boot/boot.scr from MMC then fallback to distro_bootcmd.
Board entry
config/boards/numaker-iot-ma35d16f90.csc
Adds NuMaker IoT MA35D16F90 board metadata and defaults (DTB, console, boot settings, video flag, partition table, kernel target).

Sequence Diagram(s)

sequenceDiagram
  participant MMC as MMC/SD
  participant UBoot as U-Boot
  participant Env as armbianEnv.txt
  participant Kernel as Kernel (Image)
  participant Initrd as Initramfs (uInitrd)
  participant FDT as Device Tree Blob
  participant Overlays as DT overlays

  MMC->>UBoot: boot -> load boot script (boot.scr)
  UBoot->>Env: load `armbianEnv.txt` (if present)
  Env-->>UBoot: import env or continue
  UBoot->>UBoot: build console & bootargs (rootdev, rootfstype, docker, loglevel)
  UBoot->>MMC: load Kernel (Image)
  MMC-->>UBoot: kernel loaded
  UBoot->>MMC: load Initrd (uInitrd) (optional)
  MMC-->>UBoot: initrd loaded or skipped
  UBoot->>MMC: load FDT (fdtfile)
  MMC-->>UBoot: fdt loaded
  UBoot->>Overlays: apply kernel & user overlays (rollback on error)
  Overlays-->>UBoot: success or restored FDT
  UBoot->>Kernel: booti with Image, initrd (if any), finalized FDT
Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~50 minutes

Possibly related PRs

Suggested labels

BSP

Suggested reviewers

  • igorpecovnik
  • rpardini
  • prahal
  • EvilOlaf
  • paolosabatino

Poem

🐰 I hopped through files with tiny paws,
I stitched a header, DT, and laws.
Boot scripts hum, the kernel wakes—
MA35D1 stirs, the motherboard shakes. ✨

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title accurately describes the main change: adding support for a Nuvoton MA35D1 board (NuMaker IoT). The changeset adds comprehensive board support files, boot scripts, kernel configs, and build configuration specific to this hardware.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.


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github-actions bot commented Jan 9, 2026

Hey @TuAFBogey! 👋

Thanks for submitting your first pull request to the Armbian project — we're excited to have you contributing! 🧡
Your effort doesn’t just improve Armbian — it benefits the entire community of users and developers.

If you'd like to stay informed about project updates or collaborate more closely with the team,
you can optionally share some personal contact preferences at armbian.com/update-data.
This helps us keep in touch without relying solely on GitHub notifications.

Also, don’t forget to ⭐ star the repo if you haven’t already — and welcome aboard! 🚀

@github-actions github-actions bot added 02 Milestone: First quarter release size/large PR with 250 lines or more Needs review Seeking for review Hardware Hardware related like kernel, U-Boot, ... Patches Patches related to kernel, U-Boot, ... labels Jan 9, 2026
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Actionable comments posted: 8

🤖 Fix all issues with AI agents
In @config/boards/numaker-iot-ma35d16f90.conf:
- Line 5: The BOARD_MAINTAINER field in the board config is empty; either
populate the BOARD_MAINTAINER variable with at least one maintainer string
(e.g., "Name <email@example.com>") to meet Armbian standard-support
requirements, or change the config file extension from .conf to .csc to mark it
as community support; update the line BOARD_MAINTAINER="" accordingly or rename
the file as described.

In @config/sources/families/nuvoton-ma35d1.conf:
- Around line 21-22: The comment is misleading: it references “Use chrony” while
the config actually sets NETWORKING_STACK="network-manager"; update the comment
to describe that NETWORKING_STACK is being set to network-manager (or remove the
chrony mention), or if you intend to select the NTP client instead, set the
correct Armbian NTP knob (e.g., the project’s NTP_CLIENT/TIMESYNC/USE_CHRONY
variable per Armbian docs) rather than NETWORKING_STACK; locate the
NETWORKING_STACK setting in this file and either correct its comment to reflect
NetworkManager or replace/add the proper NTP configuration variable to enable
chrony.
- Around line 481-516: The write_uboot_platform function should fail fast if any
required boot blobs are missing: before performing any dd calls, check that
header_bin, bl2_bin and fip_bin (and optionally bl2_dtb_bin if you expect it)
exist and are non-empty; if any are missing, emit an error (using display_alert
or stderr) naming the missing files and exit non-zero so no partial writes
occur. Ensure these checks reference the local variables header_bin,
bl2_dtb_bin, bl2_bin and fip_bin defined at the top of write_uboot_platform and
run prior to any dd invocations.
- Around line 192-243: The compile_optee_ma35d1 function currently does an
ad-hoc git clone and apt-get installs (OPTEE_SOURCE/OPTEE_BRANCH and
run_host_command_logged apt-get lines) and hardcodes -j12, which breaks
reproducibility and offline builds; change it to use the project's
source-fetch/cache mechanism (use ${SRC}/cache/sources/${OPTEE_DIR} if
prepopulated and avoid cloning inside the hook), remove/relocate apt-get install
calls from compile_optee_ma35d1 into the framework's dependency-install hook or
document container image requirements (do not run apt-get during build), and
replace the hardcoded -j12 in the make invocation with a configurable threads
variable such as -j"${CTHREADS:-$(nproc)}" (or ${CTHREADS}) so parallelism is
controlled by the build framework.
- Around line 253-277: The atf_dir assignment assumes a branch-suffixed layout
and can break discovery; change the logic that sets local atf_dir so it first
prefers "${SRC}/cache/sources/${ATFDIR}/${ATFBRANCH##*:}" if that directory
exists, otherwise fall back to "${SRC}/cache/sources/${ATFDIR}" (or other
existing layout), and update the fiptool variable and subsequent checks
(fiptool, atf_build_dir, and the cp/build steps) to use this resolved atf_dir;
ensure the script only appends the branch suffix when that path actually exists
so both cache layouts are supported.
- Around line 357-472: The header is currently written with only
total_header_size (200) bytes (see the write in the with-open block), leaving
the remaining 312 bytes of the 512-byte sector undefined; change the write to
emit the full 512-byte header buffer (header or header[:512]) so the on-disk
sector is deterministic while keeping the CRC calculation unchanged (CRC still
computed over header[8:total_header_size]). Ensure you still compute checksum
with checksum = binascii.crc32(header[8:total_header_size]) & 0xFFFFFFFF and
then write the entire 512-byte header to 'header.bin' instead of
header[:total_header_size].
🧹 Nitpick comments (4)
config/bootscripts/boot-nuvoton-ma35d1.cmd (2)

7-33: Set a safe default for ${prefix} (boot may fail if it’s unset).
Several load ... ${prefix}... calls assume ${prefix} exists.

Proposed fix
 # default values
 setenv rootdev "LABEL=armbi_root"
@@
 setenv fdt_addr_r "0x84000000"
 
+# Default prefix if not set by U-Boot (common Armbian layout: /boot on the same partition)
+test -n "${prefix}" || setenv prefix "/boot/"
+
 # Set default fdtfile if not set by U-Boot
 test -n "${fdtfile}" || setenv fdtfile "nuvoton/ma35d1-iot-512m.dtb"

100-109: Rootdev fallback + “boot without initrd” can be a bad combo.
If uInitrd fails to load (Line 105-108), boot continues with rootdev potentially still set to a LABEL. That’s fine if initrd is normally always present, but if it isn’t, LABEL resolution may not work reliably depending on the kernel/userspace setup.

  • Consider forcing initrd as required (exit on failure) or default rootdev to a PARTUUID/devpath fallback when partuuid isn’t available. (Based on learnings about UUID/LABEL resolution without initramfs.)
config/kernel/linux-nuvoton-ma35d1-vendor.config (1)

75-80: CPUfreq default governor looks inconsistent with the family’s GOVERNOR="ondemand".
This config defaults to USERSPACE (Line 77) while also enabling ondemand (Line 78). If userspace doesn’t override early, you can get unexpected boot-time frequency behavior.

  • Consider switching the default to ondemand in the defconfig or confirm Armbian userspace always sets the governor early enough on this platform.
config/sources/families/nuvoton-ma35d1.conf (1)

99-116: Defconfig merge: run olddefconfig (or confirm merge_config.sh already does) to avoid stale/invalid .config.

Proposed fix
 		display_alert "Merging Armbian config fragment" "MA35D1" "info"
 		run_host_command_logged ./scripts/kconfig/merge_config.sh -m .config .config.armbian_fragment
+		# Ensure final config is fully resolved
+		run_kernel_make olddefconfig
📜 Review details

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Review profile: CHILL

Plan: Pro

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📥 Commits

Reviewing files that changed from the base of the PR and between 21f3af1 and 61ccdb8.

📒 Files selected for processing (9)
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/bootenv/nuvoton-ma35d1.txt
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
🧰 Additional context used
🧠 Learnings (60)
📓 Common learnings
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).
Learnt from: HackingGate
Repo: armbian/build PR: 8665
File: config/boards/photonicat2.csc:4-4
Timestamp: 2025-10-26T10:41:35.118Z
Learning: In the Armbian build system, rk3576 boards consistently use BOARDFAMILY="rk35xx" for both vendor and edge kernel targets. The rk35xx family configuration sources rockchip64_common.inc, which provides edge and current kernel branch definitions, making these branches available even though they're not defined directly in rk35xx.conf.
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.
📚 Learning: 2025-06-04T23:45:38.860Z
Learnt from: djurny
Repo: armbian/build PR: 8272
File: config/bootscripts/boot-mvebu.cmd:182-186
Timestamp: 2025-06-04T23:45:38.860Z
Learning: In config/bootscripts/boot-mvebu.cmd, the `fdtfile` variable is mandatory for booting and is pre-set by U-Boot, but can be overridden via armbianEnv.txt. If `fdtfile` is empty, the subsequent device tree file search logic will eventually fail and trigger the critical error "Cannot find DT!" with proper error handling.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:45:02.422Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-11-02T20:49:56.719Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8849
File: config/boards/radxa-e54c.csc:14-28
Timestamp: 2025-11-02T20:49:56.719Z
Learning: In Armbian board configuration files (config/boards/*.conf, *.csc, etc.), do not use kernel_config_set, kernel_config_set_m, kernel_config_set_y, or custom_kernel_config__* functions to modify kernel configuration. Kernel configuration is associated with LINUXFAMILY/BOARDFAMILY, not individual BOARD. Board-specific kernel modifications cause inconsistency in kernel packages published to the apt repository because boards within a family share the same kernel packages. Kernel configuration changes must be made in the appropriate kernel config file (e.g., config/kernel/linux-*-*.config) or in family configuration files (config/sources/families/*.conf, *.inc) instead.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/boards/numaker-iot-ma35d16f90.conf
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-18T03:36:17.862Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files (regardless of file extension), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features. The file extensions indicate board support status: .conf (standard support), .csc (community supported), .eos (end of support), .tvb (tvbox), .wip (work in progress).

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-09-12T19:28:38.491Z
Learnt from: Grippy98
Repo: armbian/build PR: 8622
File: config/sources/families/k3.conf:66-66
Timestamp: 2025-09-12T19:28:38.491Z
Learning: In the Armbian k3 family build system (config/sources/families/k3.conf), builds do not fail when TIBOOT3_BOOTCONFIG is unset, even though tiboot3.bin is still listed in UBOOT_TARGET_MAP. The gating mechanism in pre_config_uboot_target__build_first_stage function works as intended to conditionally build/copy tiboot3.bin only when TIBOOT3_BOOTCONFIG is defined.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-12T21:44:09.061Z
Learnt from: Grippy98
Repo: armbian/build PR: 8624
File: config/boards/sk-am62p.conf:8-8
Timestamp: 2025-09-12T21:44:09.061Z
Learning: For TI K3 family boards in Armbian, BOOT_FDT_FILE uses .dts extension (not .dtb) as the standard convention. The build system handles this correctly by automatically compiling .dts to .dtb during kernel build and using the BOOT_FDT_FILE value directly in bootloader configurations.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-11-10T23:44:53.363Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-11-10T23:44:53.363Z
Learning: For the RV1106 family in Armbian (config/sources/families/rockchip-rv1106.conf), udev.children-max=1 is set in the kernel boot parameters to prevent early-boot OOM errors. The RV1106 has a single-core CPU, so parallelism in udev child processes provides no practical benefit. Testing higher values is impractical due to the difficulty of monitoring at this early boot stage.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
📚 Learning: 2025-12-13T11:39:08.046Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-03-31T22:20:48.475Z
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:76-86
Timestamp: 2025-03-31T22:20:48.475Z
Learning: For the Armbian build project, maintaining consistency with existing patches across U-Boot versions (such as between 2025.01 and 2025.04) is prioritized over refactoring individual patches for code improvements.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-11-20T18:20:11.985Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8968
File: patch/u-boot/u-boot-sunxi/arm64-dts-sun50i-h6-orangepi.dtsi-Rollback-r_rsb-to-r_i2c.patch:36-36
Timestamp: 2025-11-20T18:20:11.985Z
Learning: The rewrite-patches tool (REWRITE_PATCHES=yes) in the Armbian build system can inadvertently introduce semantic changes when the u-boot/kernel git base revision differs from expected state. The tool applies patches, commits them, and re-exports them using git format-patch, which can cause the re-exported patch to reflect the base revision's state rather than preserving the original patch intent. This is particularly problematic for device tree changes like interrupt specifications. The tool currently lacks validation mechanisms to detect such semantic drift, and affected patches must be manually corrected after rewriting.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
📚 Learning: 2025-07-23T07:30:52.265Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-03-31T22:20:41.849Z
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:73-75
Timestamp: 2025-03-31T22:20:41.849Z
Learning: When porting patches between U-Boot versions (like from 2025.01 to 2025.04), rpardini prefers to maintain patches as-is rather than introducing refactoring changes, even when potential improvements are identified. This approach prioritizes consistency and reduces the risk of introducing new issues.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
📚 Learning: 2026-01-03T20:46:29.189Z
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/boards/numaker-iot-ma35d16f90.conf
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-25T03:51:50.830Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
📚 Learning: 2025-09-14T11:37:35.089Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:65-72
Timestamp: 2025-09-14T11:37:35.089Z
Learning: In the Armbian build system, patch directories referenced in BOOTPATCHDIR and KERNELPATCHDIR configurations can be non-existent without causing build failures. Empty patch directories are also ignored by git, so missing patch directories should not be flagged as errors during code review.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
📚 Learning: 2025-06-12T21:03:39.686Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:148-161
Timestamp: 2025-06-12T21:03:39.686Z
Learning: In Armbian U-Boot bootscripts, the `${cpu}` environment variable is always pre-set by U-Boot (or defaults to a valid value), so additional guards against it being unset are unnecessary.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-12-17T15:46:22.709Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 9096
File: patch/kernel/archive/sunxi-6.18/patches.armbian/arm64-dts-sun50i-h616-add-overlays.patch:4-5
Timestamp: 2025-12-17T15:46:22.709Z
Learning: In Armbian kernel patches, when patches are renamed or reorganized, the old Subject line may be intentionally preserved in the patch header (as a second Subject line) for archival/historical purposes to document the previous patch name. This is an Armbian-specific practice for tracking patch evolution and should not be flagged as an error when the maintainer has intentionally included it for documentation.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
📚 Learning: 2025-09-14T06:32:29.806Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-26T10:41:35.118Z
Learnt from: HackingGate
Repo: armbian/build PR: 8665
File: config/boards/photonicat2.csc:4-4
Timestamp: 2025-10-26T10:41:35.118Z
Learning: In the Armbian build system, rk3576 boards consistently use BOARDFAMILY="rk35xx" for both vendor and edge kernel targets. The rk35xx family configuration sources rockchip64_common.inc, which provides edge and current kernel branch definitions, making these branches available even though they're not defined directly in rk35xx.conf.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-18T03:36:17.862Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files, .wip and .conf extensions require BOARD_MAINTAINER to be present and contain at least one maintainer. If no maintainer is present, the board support rules state it does not qualify for standard support and must be moved to community support (.csc extension). This is documented at https://docs.armbian.com/User-Guide_Board-Support-Rules/

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-10-05T19:31:16.930Z
Learnt from: rpardini
Repo: armbian/build PR: 8718
File: config/boards/thinkpad-x13s.conf:185-185
Timestamp: 2025-10-05T19:31:16.930Z
Learning: In config/boards/thinkpad-x13s.conf, the x13s_obtain_firmware() function is reference-only utility code that never runs. It is kept for documentation purposes. Updates to firmware must be done at the armbian/firmware repository. TODO comments in this function are intentional reminders and should not be flagged.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-07-17T04:12:33.125Z
Learnt from: pyavitz
Repo: armbian/build PR: 8388
File: config/boards/kickpik2b.conf:1-14
Timestamp: 2025-07-17T04:12:33.125Z
Learning: In the Armbian build system, board configuration files (*.conf) follow a project standard of not including shebang lines, even though they contain bash code and are sourced by the build system. This is an established Armbian convention that individual contributors are expected to follow, and changes to this standard would require broader project maintainer approval.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-07T17:39:32.272Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8586
File: config/boards/nanopi-r76s.conf:15-21
Timestamp: 2025-09-07T17:39:32.272Z
Learning: In the Armbian build system, the variables $BOARD and $SDCARD are always set by the build framework, so guard checks for these variables are unnecessary in board configuration files and hook functions.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-10-14T05:08:11.785Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8754
File: config/boards/bestv-r3300-l.csc:14-16
Timestamp: 2025-10-14T05:08:11.785Z
Learning: In the Armbian build system, BOOTBRANCH_BOARD is a valid framework variable used as a fallback when BOOTBRANCH is unset. The framework checks BOOTBRANCH_BOARD before applying the default bootloader branch value (see config/sources/common.conf). Board configuration files can use BOOTBRANCH_BOARD to specify the bootloader branch.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-10T22:05:40.490Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8913
File: config/sources/families/k3-beagle.conf:16-16
Timestamp: 2025-11-10T22:05:40.490Z
Learning: In the Armbian build system, kernel branches using non-mainline/vendor forks (like BeagleBoard's linux repository) should be named "vendor" or "vendor-rt" rather than "current" or "edge". The "current" and "edge" naming is reserved for mainline kernel branches. This affects both the case statement in family config files (e.g., `vendor | vendor-rt)` instead of `current | current-rt)`) and the corresponding KERNEL_TARGET declarations in board config files.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-09-09T07:30:22.419Z
Learnt from: amazingfate
Repo: armbian/build PR: 8595
File: lib/functions/compilation/patch/drivers_network.sh:0-0
Timestamp: 2025-09-09T07:30:22.419Z
Learning: RTW_WARN_LMT sed workaround in driver_rtl8852bs() function in lib/functions/compilation/patch/drivers_network.sh is necessary for kernel 6.1 compatibility, even when the upstream wifi-rtl8852bs driver has the macro defined for newer kernels. The workaround ensures cross-kernel compatibility from 6.1 to 6.16+.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-06-24T10:08:40.313Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8328
File: lib/functions/compilation/patch/drivers_network.sh:542-545
Timestamp: 2025-06-24T10:08:40.313Z
Learning: In the Armbian build system, when a PR removes build support for a specific kernel version, version check issues for that removed version become practically irrelevant even if they appear incorrect in isolation. Context about which kernel versions are being deprecated/removed is important for understanding the impact of version-related code changes.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-07-23T10:01:41.310Z
Learnt from: amazingfate
Repo: armbian/build PR: 8419
File: lib/functions/host/prepare-host.sh:272-275
Timestamp: 2025-07-23T10:01:41.310Z
Learning: In the Armbian build system, the design philosophy is to fail fast when host dependencies are not met rather than gracefully skipping unsupported architectures. This ensures build environment consistency and prevents silent failures. Host dependency checks should be explicit and non-negotiable.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-07-25T03:51:50.830Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub API (https://api.github.com/repos/armbian/build/pulls/{pr_number}/files) to get the complete picture of what files are being added or modified, especially for U-Boot patches that will be applied during the build process.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-09-25T18:37:00.330Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
📚 Learning: 2025-12-16T13:40:07.649Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-12-18T23:40:55.905Z
Learnt from: rpardini
Repo: armbian/build PR: 9101
File: lib/functions/image/compress-checksum.sh:44-48
Timestamp: 2025-12-18T23:40:55.905Z
Learning: In the Armbian build framework, host dependencies are strictly controlled, ensuring that specific tools like `zstdmt` are guaranteed to be available in the build environment.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-12-21T10:28:48.455Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 9086
File: patch/kernel/archive/uefi-arm64-6.19/net-stmicro-stmmac-Phytium-onboard-ethernet-drivers-and-ACPI-glue-for-6.x.patch.disabled:625-633
Timestamp: 2025-12-21T10:28:48.455Z
Learning: The patch "net-stmicro-stmmac-Phytium-onboard-ethernet-drivers-and-ACPI-glue-for-6.x.patch" in patch/kernel/archive/uefi-arm64-6.19/ is known to break compilation on kernel 6.19 and is therefore disabled (has .disabled extension).

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
📚 Learning: 2026-01-07T18:21:35.944Z
Learnt from: rpardini
Repo: armbian/build PR: 9180
File: patch/kernel/archive/sm8250-6.18/0000.patching_config.yaml:4-8
Timestamp: 2026-01-07T18:21:35.944Z
Learning: In Armbian patch/kernel/archive/**/0000.patching_config.yaml files, the version metadata fields (name, branch, last-known-good-tag, kind, type) under the "info stuff" comment are not used by the patching scripts. When reviewing these files, do not suggest updating or fixing these metadata fields. Instead, suggest removing them entirely as they serve no functional purpose.

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
📚 Learning: 2025-12-19T13:56:45.124Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
📚 Learning: 2025-12-17T05:09:02.306Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-17T05:09:02.306Z
Learning: In the Armbian build system, kernel patches (e.g., in patch/kernel/archive/sunxi-6.18/patches.armbian/) contain device tree overlays and other code that have existed for years and are maintained/ported across kernel versions. When reviewing PRs that modify these patch files, focus on the actual changes being made (e.g., Makefile fixes, new additions) rather than reviewing the entire existing content within the patch as if it were new code. The patch file contents are existing, stable code unless explicitly modified in the PR diff.

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
📚 Learning: 2025-06-12T21:14:36.024Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:38-44
Timestamp: 2025-06-12T21:14:36.024Z
Learning: In config/bootscripts/boot-sunxi.cmd the unconditional "+1" increment in func_align_addr_next (when align_overlap_oboe_avoidance="on") is intentional. It compensates for a known off-by-one error in U-Boot where the end address is calculated as start+size instead of start+size-1, so the extra page prevents overlap. This behavior should not be “optimized away”.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:08:11.318Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:13-23
Timestamp: 2025-06-12T21:08:11.318Z
Learning: In config/bootscripts/boot-sunxi.cmd the variable name `align_overlap_oboe_avoidance` intentionally uses the acronym “OBOE” (Off-By-One Error); it is not a typo and should not be renamed.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-09-01T06:11:43.476Z
Learnt from: wei633
Repo: armbian/build PR: 8557
File: config/bootscripts/boot-xpressreal-t3.cmd:0-0
Timestamp: 2025-09-01T06:11:43.476Z
Learning: In Armbian boot scripts without initramfs support, UUID= and LABEL= style device paths cannot be used for rootdev as they require initramfs to resolve during boot. Only direct device paths (/dev/mmcblkXpY) or PARTUUID= references (which U-Boot can resolve) will work.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-09-12T15:46:16.772Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/bootscripts/boot-rk3506.cmd:46-47
Timestamp: 2025-09-12T15:46:16.772Z
Learning: In Armbian boot scripts, uInitrd is always packaged by the build system, so unconditional loading of uInitrd without existence checks is acceptable and won't cause boot failures.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-08-30T06:56:33.372Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T06:56:33.372Z
Learning: In Armbian kernel configuration, the BTRFS configuration logic preserves existing settings (whether built-in 'y' or module 'm') and only sets BTRFS_FS to module when it was previously disabled or not set, achieving "allow but not require" flexibility while maintaining backward compatibility.

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-27T21:47:58.020Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-bcm2711-edge.config:859-861
Timestamp: 2025-09-27T21:47:58.020Z
Learning: In the Armbian build system, kernel configuration files in config/kernel/ are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-30T04:13:16.457Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T04:13:16.457Z
Learning: Armbian kernel configuration files like linux-filogic-current.config are autogenerated overlays on top of arch defconfig. Comments added manually will be lost during future updates by maintainers, and explicit "CONFIG_OPTION is not set" statements aren't needed for mutually exclusive options since these are overlay configs that only specify changes from the base configuration.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:49:55.796Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-current.config:78-80
Timestamp: 2025-09-27T21:49:55.796Z
Learning: In the Armbian build system, kernel configuration files are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:04.845Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-edge.config:80-82
Timestamp: 2025-09-27T21:50:04.845Z
Learning: In the Armbian build system, kernel configuration files are generated through this automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:15.915Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sunxi64-current.config:94-94
Timestamp: 2025-09-27T21:50:15.915Z
Learning: When kernel config files are generated through Armbian's automated process (previous config → armbian-kernel.sh changes → make oldconfig → Armbian machinery processing), manual config file edits are not appropriate since they would be overwritten. Deprecated option handling should be implemented in the automated tooling instead.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-03T11:42:46.660Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:96-169
Timestamp: 2025-10-03T11:42:46.660Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), deletion of kernel config files does not need to be handled. The workflow intentionally only captures ACMR (added/copied/modified/renamed) changes and does not need to propagate deletions to the aggregator.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-27T15:53:30.629Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:805-825
Timestamp: 2025-07-27T15:53:30.629Z
Learning: In the Armbian build system, kernel configurations prioritize broad hardware compatibility over optimization concerns. Even when including numerous legacy/obsolete drivers causes technical issues like increased initramfs size and slower enumeration, the project philosophy is to "appease the masses" by ensuring maximum device compatibility rather than optimizing for specific use cases.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-22T21:52:01.225Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-201
Timestamp: 2025-09-22T21:52:01.225Z
Learning: The kernel_config_set_m function in lib/functions/compilation/armbian-kernel.sh preserves existing 'y' (built-in) settings and only sets options to 'm' (module) when they are not already built-in, achieving "prefer modules but allow built-ins" behavior.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-10-22T07:56:19.424Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8789
File: config/kernel/linux-sunxi64-edge.config:839-839
Timestamp: 2025-10-22T07:56:19.424Z
Learning: In Linux kernel configuration, some `=y` (builtin) options are infrastructure or feature flags that enable subsystems or features for modular drivers, rather than directly compiling code into the kernel. For example, in Armbian wireless configs, options like CONFIG_SPARD_WLAN_SUPPORT=y, CONFIG_SC23XX=y, CONFIG_WCN_BSP_DRIVER_BUILDIN=y, CONFIG_UNISOC_WIFI_PS=y are module infrastructure/feature enablers, while the actual drivers (CONFIG_WLAN_UWE5621=m, CONFIG_WLAN_UWE5622=m) remain as loadable modules. These infrastructure options don't cause kernel bloat.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-27T13:03:53.146Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:2664-2671
Timestamp: 2025-07-27T13:03:53.146Z
Learning: In the Armbian build system's kernel configuration, when CONFIG_EXT2_FS=y and CONFIG_EXT3_FS=y are both set to built-in, EXT4 filesystem support becomes automatically available/hard-coded without requiring an explicit CONFIG_EXT4_FS line in the configuration file. This is specific to how Armbian handles kernel configuration and differs from typical standalone Linux kernel configuration behavior.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-03-31T12:57:13.880Z
Learnt from: libiunc
Repo: armbian/build PR: 8033
File: config/kernel/linux-starfive2-vendor.config:43-43
Timestamp: 2025-03-31T12:57:13.880Z
Learning: For StarFive2 platform kernel configurations, maintain alignment with vendor-provided configurations rather than modifying security settings like SECCOMP. This ensures hardware compatibility as intended by the manufacturer.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-27T13:03:53.146Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:2664-2671
Timestamp: 2025-07-27T13:03:53.146Z
Learning: In Linux kernel configuration for the Armbian build system, when CONFIG_EXT2_FS and CONFIG_EXT3_FS are both set to =y (built-in), CONFIG_EXT4_FS is automatically enabled/hard-coded and does not need to be explicitly specified in the configuration file. This dependency relationship means that EXT4 support is implicitly included when EXT2 and EXT3 are built into the kernel.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-26T11:14:41.697Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:82-83
Timestamp: 2025-07-26T11:14:41.697Z
Learning: In Linux kernel 6.13 and later, CONFIG_ZBUD was deprecated and is scheduled for removal in kernel 6.15. The zbud compressed page allocator was found to consume more memory than alternatives like zsmalloc. Therefore, CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD becomes obsolete in current kernels, and make defconfig will auto-correct by removing such deprecated options. This demonstrates how kernel defconfigs can be backwards compatible but not forward compatible.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-15T21:09:23.252Z
Learnt from: pyavitz
Repo: armbian/build PR: 8383
File: config/kernel/linux-sunxi64-edge.config:57-64
Timestamp: 2025-07-15T21:09:23.252Z
Learning: In Linux kernel configuration, when CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y is set, the ondemand governor is implicitly enabled by default, making the explicit CONFIG_CPU_FREQ_GOV_ONDEMAND=y line redundant. The make menuconfig tool automatically removes such redundant lines. This behavior applies to CPU frequency governor configurations in general - setting a default governor automatically enables that governor.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-06-25T03:40:52.109Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:40:52.109Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, when KERNELSOURCE is not explicitly declared in a case branch, the system falls back to a default KERNELSOURCE value, so missing KERNELSOURCE declarations are not critical issues.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:42:09.086Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:42:09.086Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, KERNELSOURCE is explicitly declared when using unofficial or 3rd party kernel repositories (like the "dev" branch using https://github.com/apritzel/linux), but can be omitted when using the standard mainline kernel (like the "edge" branch) since it will fall back to the default mainline source.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-22T21:52:01.225Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-201
Timestamp: 2025-09-22T21:52:01.225Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the kernel_config_modifying_hashes array is not universally required for all kernel configuration functions - some functions like armbian_kernel_config__netkit() operate without it, and adding entries with '=m' would be incorrect when the actual result might be '=y' for options already built-in.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-12T23:09:56.813Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9058
File: config/sources/families/spacemit.conf:39-45
Timestamp: 2025-12-12T23:09:56.813Z
Learning: In Armbian build configs for vendor kernel sources, prefer the following branch naming conventions: use 'vendor' or 'vendor-rt' for stable vendor releases, and 'vendor-edge' for bleeding-edge/pre-release vendor versions. The 'edge' naming without the 'vendor-' prefix is reserved for mainline kernel branches. Apply this pattern to family config files under config/sources/families (e.g., spacemit.conf) to ensure consistent vendor kernel sourcing naming across the repository.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
🔇 Additional comments (7)
config/bootenv/nuvoton-ma35d1.txt (1)

1-4: LGTM!

The boot environment configuration is correct and consistent with the board configuration. The fdtfile path matches the BOOT_FDT_FILE setting in the board configuration file.

patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config (1)

1-3: LGTM!

The BTF disablement is appropriate for the 5.10.140 vendor kernel with modern toolchains. This is a known workaround pattern for compatibility issues.

config/boards/numaker-iot-ma35d16f90.conf (2)

19-31: LGTM!

The serial console configuration is correctly implemented. The systemd override properly configures the getty service for ttyS0 at 115200 baud, matching the hardware specification mentioned in the PR description.


12-12: BOOT_SCENARIO="blobless" is correct for MA35D16F90.

The board compiles TF-A, OP-TEE, and U-Boot entirely from open-source Nuvoton repositories (ATFSOURCE, OPTEE_SOURCE, BOOTSOURCE) with no proprietary binary blobs. In the Armbian framework, "blobless" means no pre-compiled vendor binary blobs—not the absence of binary files. The boot files listed in UBOOT_TARGET_MAP (bl2.bin, bl31.bin, tee-header_v2.bin, tee-pager_v2.bin, etc.) are build outputs, not pre-compiled inputs.

Likely an incorrect or invalid review comment.

patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch (1)

24-24: Address 0x85010000 is safe for boot.scr loading on MA35D1.

The memory layout in boot-nuvoton-ma35d1.cmd (lines 17-26) documents DDR allocations: kernel at 0x80000000, ramdisk at 0x82000000, DTB at 0x84000000, with OP-TEE reserved at 0x8f800000. The address 0x85010000 falls in the free space between DTB and OP-TEE reservations, with ample room for boot.scr (typically <100KB). No conflicts with any kernel, ramdisk, or device tree load addresses.

config/sources/families/nuvoton-ma35d1.conf (1)

14-23: The kernel version configuration is consistent and correct. LOCALVERSION="" (line 16) produces the clean version "5.10.140" that matches the vermagic expected by Nuvoton's precompiled modules (dcultrafb.ko, ma35d1-vc8000.ko), allowing them to load successfully. The commented-out extension (line 68) is redundant because the clean version setting is already explicitly configured. No changes needed.

patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch (1)

15-21: Remove this concern—ARCH_MA35D1 is a valid Kconfig symbol.

The config file (config/kernel/linux-nuvoton-ma35d1-vendor.config:37) shows CONFIG_ARCH_MA35D1=y, confirming the symbol is recognized and set during the vendor kernel build. The depends on !ARCH_MA35D1 dependency will correctly disable DEBUG_INFO_BTF on MA35D1 builds.

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Actionable comments posted: 2

🤖 Fix all issues with AI agents
In @config/boards/numaker-iot-ma35d16f90.conf:
- Around line 1-18: The BOARD_MAINTAINER field is empty (BOARD_MAINTAINER="")
which violates board support rules; either populate BOARD_MAINTAINER with a
maintainer identifier (name and/or email) to mark this board as supported, or
convert the board to community-supported by renaming/creating the config as a
.csc variant; update the BOARD_MAINTAINER variable (or switch to .csc)
accordingly and ensure the maintainer string is non-empty.

In @config/bootscripts/boot-nuvoton-ma35d1.cmd:
- Around line 138-144: When overlay_error is true the script reloads the
original DTB with the load command but does not re-initialize the FDT state;
after the existing load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r}
${prefix}dtb/${fdtfile} call add a reinitialization sequence: run fdt addr using
the same ${fdt_addr_r} (i.e. fdt addr ${fdt_addr_r}) and then run fdt resize so
the in-memory FDT is consistent; place both calls inside the if block
immediately after load so overlay recovery fully restores FDT state.
🧹 Nitpick comments (7)
patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch (1)

15-30: Consider a targeted RWX-warning suppression instead of dropping --fatal-warnings entirely.

Removing --fatal-warnings fixes the immediate failure, but it also stops surfacing other link warnings as hard errors for this platform. If your linker supports it, prefer adding a specific “disable RWX segment warning” flag while keeping --fatal-warnings.

Possible direction (needs validation with the linker actually used)
- TF_LDFLAGS		+=	-O1
+ TF_LDFLAGS		+=	-Wl,--fatal-warnings -Wl,--no-warn-rwx-segments -O1
patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch (1)

18-25: Bootcmd is very hard-coded (mmc 0:1 + fixed address); consider using U-Boot variables for portability.

As-is, this likely only works for “SD as mmc0, rootfs on partition 1, ext4” and assumes 0x85010000 is always safe. If supported by this U-Boot, prefer ${scriptaddr} (or ${loadaddr}) and ${distro_bootpart} (and avoid forcing mmc dev 0 when possible).

Example (only if these vars exist in your U-Boot and expand correctly)
-CONFIG_BOOTCOMMAND="mmc dev 0; ext4load mmc 0:1 0x85010000 /boot/boot.scr && source 0x85010000; run distro_bootcmd"
+CONFIG_BOOTCOMMAND="mmc dev 0; ext4load mmc 0:${distro_bootpart} ${scriptaddr} /boot/boot.scr && source ${scriptaddr}; run distro_bootcmd"
config/sources/families/nuvoton-ma35d1.conf (5)

21-22: Misleading comment - chrony/timesyncd is unrelated to NETWORKING_STACK.

The comment mentions chrony and systemd-timesyncd, but NETWORKING_STACK="network-manager" controls the network management daemon, not the time synchronization service.

Suggested fix
-# Use chrony instead of systemd-timesyncd (timesyncd fails in chroot)
+# Use NetworkManager for network configuration
 declare -g NETWORKING_STACK="network-manager"

223-232: Hardcoded -j12 should use dynamic parallelism.

The hardcoded -j12 may not be optimal for all build environments. Consider using $(nproc) or the Armbian framework's parallelism settings.

Suggested fix
 	run_host_command_logged make -C "${optee_src_dir}" \
 		CROSS_COMPILE_core="${cross_compile}" \
 		CROSS_COMPILE_ta_arm64="${cross_compile}" \
 		PLATFORM=nuvoton-MA35D1 \
 		CFG_ARM64_core=y \
 		CFG_TEE_CORE_LOG_LEVEL=1 \
 		LDFLAGS="--no-warn-rwx-segments" \
 		NOWERROR=1 \
 		V=1 \
-		-j12
+		-j"$(nproc)"

204-209: Installing packages during build is a side effect.

Running apt-get install during the build process may fail in restricted environments or cause race conditions with parallel builds. Consider adding these dependencies to the build container or using Armbian's dependency management.

However, the current approach is pragmatic for initial vendor support and can be refined later.


500-515: Consider adding error handling for dd commands.

The dd commands write critical boot components but don't check for errors. A failed write could leave the device unbootable.

Example error handling pattern
 	# Write Header 0 at sector 2 (offset 1024 = 0x400)
-	dd if="${header_bin}" of="${target_dev}" bs=512 seek=2 conv=notrunc status=none
+	dd if="${header_bin}" of="${target_dev}" bs=512 seek=2 conv=notrunc status=none || exit_with_error "Failed to write header"

The current implementation follows the pattern used in other Armbian family files.


253-263: Use the ATFSOURCEDIR variable instead of manually reconstructing the ATF path.

The path ${SRC}/cache/sources/${ATFDIR}/${ATFBRANCH##*:} is functionally correct—${ATFBRANCH##*:} produces the same result as the branch2dir() function that Armbian uses to define ATFSOURCEDIR (line 240 in lib/functions/main/config-prepare.sh). However, ATFSOURCEDIR is already defined and available in this context (as noted in the comment at line 138). Use ${SRC}/cache/sources/${ATFSOURCEDIR} instead to follow DRY principle and match Armbian's standard pattern across other family configurations.

📜 Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between 21f3af1 and 61ccdb8.

📒 Files selected for processing (9)
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/bootenv/nuvoton-ma35d1.txt
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
🧰 Additional context used
🧠 Learnings (60)
📓 Common learnings
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.
Learnt from: rpardini
Repo: armbian/build PR: 8879
File: config/sources/families/uefi-x86.conf:0-0
Timestamp: 2025-11-06T15:36:04.682Z
Learning: As of PR #8879, the uefi-x86 family in the Armbian build system now includes kernel patches for the first time. The current and edge branches for uefi-x86 are specifically configured for Apple T2-based x86 machines, including T2-specific patches from the linux-t2 project and custom kernel configuration options for Apple hardware drivers.
Learnt from: HackingGate
Repo: armbian/build PR: 8665
File: config/boards/photonicat2.csc:4-4
Timestamp: 2025-10-26T10:41:35.118Z
Learning: In the Armbian build system, rk3576 boards consistently use BOARDFAMILY="rk35xx" for both vendor and edge kernel targets. The rk35xx family configuration sources rockchip64_common.inc, which provides edge and current kernel branch definitions, making these branches available even though they're not defined directly in rk35xx.conf.
📚 Learning: 2025-06-04T23:45:38.860Z
Learnt from: djurny
Repo: armbian/build PR: 8272
File: config/bootscripts/boot-mvebu.cmd:182-186
Timestamp: 2025-06-04T23:45:38.860Z
Learning: In config/bootscripts/boot-mvebu.cmd, the `fdtfile` variable is mandatory for booting and is pre-set by U-Boot, but can be overridden via armbianEnv.txt. If `fdtfile` is empty, the subsequent device tree file search logic will eventually fail and trigger the critical error "Cannot find DT!" with proper error handling.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/bootenv/nuvoton-ma35d1.txt
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:45:02.422Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/bootenv/nuvoton-ma35d1.txt
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-06-12T21:14:36.024Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:38-44
Timestamp: 2025-06-12T21:14:36.024Z
Learning: In config/bootscripts/boot-sunxi.cmd the unconditional "+1" increment in func_align_addr_next (when align_overlap_oboe_avoidance="on") is intentional. It compensates for a known off-by-one error in U-Boot where the end address is calculated as start+size instead of start+size-1, so the extra page prevents overlap. This behavior should not be “optimized away”.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:39:08.046Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/bootenv/nuvoton-ma35d1.txt
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:03:39.686Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:148-161
Timestamp: 2025-06-12T21:03:39.686Z
Learning: In Armbian U-Boot bootscripts, the `${cpu}` environment variable is always pre-set by U-Boot (or defaults to a valid value), so additional guards against it being unset are unnecessary.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
📚 Learning: 2025-09-14T06:32:29.806Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-17T04:12:33.125Z
Learnt from: pyavitz
Repo: armbian/build PR: 8388
File: config/boards/kickpik2b.conf:1-14
Timestamp: 2025-07-17T04:12:33.125Z
Learning: In the Armbian build system, board configuration files (*.conf) follow a project standard of not including shebang lines, even though they contain bash code and are sourced by the build system. This is an established Armbian convention that individual contributors are expected to follow, and changes to this standard would require broader project maintainer approval.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:08:11.318Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:13-23
Timestamp: 2025-06-12T21:08:11.318Z
Learning: In config/bootscripts/boot-sunxi.cmd the variable name `align_overlap_oboe_avoidance` intentionally uses the acronym “OBOE” (Off-By-One Error); it is not a typo and should not be renamed.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-11-20T18:20:11.985Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8968
File: patch/u-boot/u-boot-sunxi/arm64-dts-sun50i-h6-orangepi.dtsi-Rollback-r_rsb-to-r_i2c.patch:36-36
Timestamp: 2025-11-20T18:20:11.985Z
Learning: The rewrite-patches tool (REWRITE_PATCHES=yes) in the Armbian build system can inadvertently introduce semantic changes when the u-boot/kernel git base revision differs from expected state. The tool applies patches, commits them, and re-exports them using git format-patch, which can cause the re-exported patch to reflect the base revision's state rather than preserving the original patch intent. This is particularly problematic for device tree changes like interrupt specifications. The tool currently lacks validation mechanisms to detect such semantic drift, and affected patches must be manually corrected after rewriting.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
📚 Learning: 2025-09-12T19:28:38.491Z
Learnt from: Grippy98
Repo: armbian/build PR: 8622
File: config/sources/families/k3.conf:66-66
Timestamp: 2025-09-12T19:28:38.491Z
Learning: In the Armbian k3 family build system (config/sources/families/k3.conf), builds do not fail when TIBOOT3_BOOTCONFIG is unset, even though tiboot3.bin is still listed in UBOOT_TARGET_MAP. The gating mechanism in pre_config_uboot_target__build_first_stage function works as intended to conditionally build/copy tiboot3.bin only when TIBOOT3_BOOTCONFIG is defined.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-01T06:11:43.476Z
Learnt from: wei633
Repo: armbian/build PR: 8557
File: config/bootscripts/boot-xpressreal-t3.cmd:0-0
Timestamp: 2025-09-01T06:11:43.476Z
Learning: In Armbian boot scripts without initramfs support, UUID= and LABEL= style device paths cannot be used for rootdev as they require initramfs to resolve during boot. Only direct device paths (/dev/mmcblkXpY) or PARTUUID= references (which U-Boot can resolve) will work.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-09-12T15:46:16.772Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/bootscripts/boot-rk3506.cmd:46-47
Timestamp: 2025-09-12T15:46:16.772Z
Learning: In Armbian boot scripts, uInitrd is always packaged by the build system, so unconditional loading of uInitrd without existence checks is acceptable and won't cause boot failures.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-09-12T21:44:09.061Z
Learnt from: Grippy98
Repo: armbian/build PR: 8624
File: config/boards/sk-am62p.conf:8-8
Timestamp: 2025-09-12T21:44:09.061Z
Learning: For TI K3 family boards in Armbian, BOOT_FDT_FILE uses .dts extension (not .dtb) as the standard convention. The build system handles this correctly by automatically compiling .dts to .dtb during kernel build and using the BOOT_FDT_FILE value directly in bootloader configurations.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/bootenv/nuvoton-ma35d1.txt
  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-07-23T07:30:52.265Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-09T07:30:22.419Z
Learnt from: amazingfate
Repo: armbian/build PR: 8595
File: lib/functions/compilation/patch/drivers_network.sh:0-0
Timestamp: 2025-09-09T07:30:22.419Z
Learning: RTW_WARN_LMT sed workaround in driver_rtl8852bs() function in lib/functions/compilation/patch/drivers_network.sh is necessary for kernel 6.1 compatibility, even when the upstream wifi-rtl8852bs driver has the macro defined for newer kernels. The workaround ensures cross-kernel compatibility from 6.1 to 6.16+.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-03-31T22:20:48.475Z
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:76-86
Timestamp: 2025-03-31T22:20:48.475Z
Learning: For the Armbian build project, maintaining consistency with existing patches across U-Boot versions (such as between 2025.01 and 2025.04) is prioritized over refactoring individual patches for code improvements.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
📚 Learning: 2025-06-24T10:08:40.313Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8328
File: lib/functions/compilation/patch/drivers_network.sh:542-545
Timestamp: 2025-06-24T10:08:40.313Z
Learning: In the Armbian build system, when a PR removes build support for a specific kernel version, version check issues for that removed version become practically irrelevant even if they appear incorrect in isolation. Context about which kernel versions are being deprecated/removed is important for understanding the impact of version-related code changes.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-07-23T10:01:41.310Z
Learnt from: amazingfate
Repo: armbian/build PR: 8419
File: lib/functions/host/prepare-host.sh:272-275
Timestamp: 2025-07-23T10:01:41.310Z
Learning: In the Armbian build system, the design philosophy is to fail fast when host dependencies are not met rather than gracefully skipping unsupported architectures. This ensures build environment consistency and prevents silent failures. Host dependency checks should be explicit and non-negotiable.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-07-25T03:51:50.830Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub API (https://api.github.com/repos/armbian/build/pulls/{pr_number}/files) to get the complete picture of what files are being added or modified, especially for U-Boot patches that will be applied during the build process.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-09-07T17:39:32.272Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8586
File: config/boards/nanopi-r76s.conf:15-21
Timestamp: 2025-09-07T17:39:32.272Z
Learning: In the Armbian build system, the variables $BOARD and $SDCARD are always set by the build framework, so guard checks for these variables are unnecessary in board configuration files and hook functions.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-09-25T18:37:00.330Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
📚 Learning: 2025-12-16T13:40:07.649Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-12-18T23:40:55.905Z
Learnt from: rpardini
Repo: armbian/build PR: 9101
File: lib/functions/image/compress-checksum.sh:44-48
Timestamp: 2025-12-18T23:40:55.905Z
Learning: In the Armbian build framework, host dependencies are strictly controlled, ensuring that specific tools like `zstdmt` are guaranteed to be available in the build environment.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
📚 Learning: 2025-12-17T15:46:22.709Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 9096
File: patch/kernel/archive/sunxi-6.18/patches.armbian/arm64-dts-sun50i-h616-add-overlays.patch:4-5
Timestamp: 2025-12-17T15:46:22.709Z
Learning: In Armbian kernel patches, when patches are renamed or reorganized, the old Subject line may be intentionally preserved in the patch header (as a second Subject line) for archival/historical purposes to document the previous patch name. This is an Armbian-specific practice for tracking patch evolution and should not be flagged as an error when the maintainer has intentionally included it for documentation.

Applied to files:

  • patch/atf/atf-nuvoton-ma35d1/fix-rwx-segment-warning.patch
  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
📚 Learning: 2025-09-18T03:36:17.862Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files (regardless of file extension), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features. The file extensions indicate board support status: .conf (standard support), .csc (community supported), .eos (end of support), .tvb (tvbox), .wip (work in progress).

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-11-02T20:49:56.719Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8849
File: config/boards/radxa-e54c.csc:14-28
Timestamp: 2025-11-02T20:49:56.719Z
Learning: In Armbian board configuration files (config/boards/*.conf, *.csc, etc.), do not use kernel_config_set, kernel_config_set_m, kernel_config_set_y, or custom_kernel_config__* functions to modify kernel configuration. Kernel configuration is associated with LINUXFAMILY/BOARDFAMILY, not individual BOARD. Board-specific kernel modifications cause inconsistency in kernel packages published to the apt repository because boards within a family share the same kernel packages. Kernel configuration changes must be made in the appropriate kernel config file (e.g., config/kernel/linux-*-*.config) or in family configuration files (config/sources/families/*.conf, *.inc) instead.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-10T23:44:53.363Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-11-10T23:44:53.363Z
Learning: For the RV1106 family in Armbian (config/sources/families/rockchip-rv1106.conf), udev.children-max=1 is set in the kernel boot parameters to prevent early-boot OOM errors. The RV1106 has a single-core CPU, so parallelism in udev child processes provides no practical benefit. Testing higher values is impractical due to the difficulty of monitoring at this early boot stage.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
📚 Learning: 2025-12-21T10:28:48.455Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 9086
File: patch/kernel/archive/uefi-arm64-6.19/net-stmicro-stmmac-Phytium-onboard-ethernet-drivers-and-ACPI-glue-for-6.x.patch.disabled:625-633
Timestamp: 2025-12-21T10:28:48.455Z
Learning: The patch "net-stmicro-stmmac-Phytium-onboard-ethernet-drivers-and-ACPI-glue-for-6.x.patch" in patch/kernel/archive/uefi-arm64-6.19/ is known to break compilation on kernel 6.19 and is therefore disabled (has .disabled extension).

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
📚 Learning: 2026-01-03T20:46:29.189Z
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/boards/numaker-iot-ma35d16f90.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-19T13:56:45.124Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
📚 Learning: 2025-12-17T05:09:02.306Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-17T05:09:02.306Z
Learning: In the Armbian build system, kernel patches (e.g., in patch/kernel/archive/sunxi-6.18/patches.armbian/) contain device tree overlays and other code that have existed for years and are maintained/ported across kernel versions. When reviewing PRs that modify these patch files, focus on the actual changes being made (e.g., Makefile fixes, new additions) rather than reviewing the entire existing content within the patch as if it were new code. The patch file contents are existing, stable code unless explicitly modified in the PR diff.

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
📚 Learning: 2026-01-07T18:21:35.944Z
Learnt from: rpardini
Repo: armbian/build PR: 9180
File: patch/kernel/archive/sm8250-6.18/0000.patching_config.yaml:4-8
Timestamp: 2026-01-07T18:21:35.944Z
Learning: In Armbian patch/kernel/archive/**/0000.patching_config.yaml files, the version metadata fields (name, branch, last-known-good-tag, kind, type) under the "info stuff" comment are not used by the patching scripts. When reviewing these files, do not suggest updating or fixing these metadata fields. Instead, suggest removing them entirely as they serve no functional purpose.

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
📚 Learning: 2025-09-22T22:08:54.273Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-09-22T22:08:54.273Z
Learning: When extracting comments from Linux Kconfig files, def_bool and def_tristate entries use their parameter as a dependency/default condition, not as a feature description. Comments should be generated differently for these entry types to avoid misleading inline documentation.

Applied to files:

  • patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch
📚 Learning: 2025-03-31T22:20:41.849Z
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:73-75
Timestamp: 2025-03-31T22:20:41.849Z
Learning: When porting patches between U-Boot versions (like from 2025.01 to 2025.04), rpardini prefers to maintain patches as-is rather than introducing refactoring changes, even when potential improvements are identified. This approach prioritizes consistency and reduces the risk of introducing new issues.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
📚 Learning: 2025-07-25T03:51:50.830Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.

Applied to files:

  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
📚 Learning: 2025-10-26T10:41:35.118Z
Learnt from: HackingGate
Repo: armbian/build PR: 8665
File: config/boards/photonicat2.csc:4-4
Timestamp: 2025-10-26T10:41:35.118Z
Learning: In the Armbian build system, rk3576 boards consistently use BOARDFAMILY="rk35xx" for both vendor and edge kernel targets. The rk35xx family configuration sources rockchip64_common.inc, which provides edge and current kernel branch definitions, making these branches available even though they're not defined directly in rk35xx.conf.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-09-18T03:36:17.862Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files, .wip and .conf extensions require BOARD_MAINTAINER to be present and contain at least one maintainer. If no maintainer is present, the board support rules state it does not qualify for standard support and must be moved to community support (.csc extension). This is documented at https://docs.armbian.com/User-Guide_Board-Support-Rules/

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-10-05T19:31:16.930Z
Learnt from: rpardini
Repo: armbian/build PR: 8718
File: config/boards/thinkpad-x13s.conf:185-185
Timestamp: 2025-10-05T19:31:16.930Z
Learning: In config/boards/thinkpad-x13s.conf, the x13s_obtain_firmware() function is reference-only utility code that never runs. It is kept for documentation purposes. Updates to firmware must be done at the armbian/firmware repository. TODO comments in this function are intentional reminders and should not be flagged.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-08-30T04:13:16.457Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T04:13:16.457Z
Learning: Armbian kernel configuration files like linux-filogic-current.config are autogenerated overlays on top of arch defconfig. Comments added manually will be lost during future updates by maintainers, and explicit "CONFIG_OPTION is not set" statements aren't needed for mutually exclusive options since these are overlay configs that only specify changes from the base configuration.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:47:58.020Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-bcm2711-edge.config:859-861
Timestamp: 2025-09-27T21:47:58.020Z
Learning: In the Armbian build system, kernel configuration files in config/kernel/ are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-14T05:08:11.785Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8754
File: config/boards/bestv-r3300-l.csc:14-16
Timestamp: 2025-10-14T05:08:11.785Z
Learning: In the Armbian build system, BOOTBRANCH_BOARD is a valid framework variable used as a fallback when BOOTBRANCH is unset. The framework checks BOOTBRANCH_BOARD before applying the default bootloader branch value (see config/sources/common.conf). Board configuration files can use BOOTBRANCH_BOARD to specify the bootloader branch.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-10T22:05:40.490Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8913
File: config/sources/families/k3-beagle.conf:16-16
Timestamp: 2025-11-10T22:05:40.490Z
Learning: In the Armbian build system, kernel branches using non-mainline/vendor forks (like BeagleBoard's linux repository) should be named "vendor" or "vendor-rt" rather than "current" or "edge". The "current" and "edge" naming is reserved for mainline kernel branches. This affects both the case statement in family config files (e.g., `vendor | vendor-rt)` instead of `current | current-rt)`) and the corresponding KERNEL_TARGET declarations in board config files.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.conf
📚 Learning: 2025-09-27T21:49:55.796Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-current.config:78-80
Timestamp: 2025-09-27T21:49:55.796Z
Learning: In the Armbian build system, kernel configuration files are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:04.845Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-edge.config:80-82
Timestamp: 2025-09-27T21:50:04.845Z
Learning: In the Armbian build system, kernel configuration files are generated through this automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:15.915Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sunxi64-current.config:94-94
Timestamp: 2025-09-27T21:50:15.915Z
Learning: When kernel config files are generated through Armbian's automated process (previous config → armbian-kernel.sh changes → make oldconfig → Armbian machinery processing), manual config file edits are not appropriate since they would be overwritten. Deprecated option handling should be implemented in the automated tooling instead.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-27T15:53:30.629Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:805-825
Timestamp: 2025-07-27T15:53:30.629Z
Learning: In the Armbian build system, kernel configurations prioritize broad hardware compatibility over optimization concerns. Even when including numerous legacy/obsolete drivers causes technical issues like increased initramfs size and slower enumeration, the project philosophy is to "appease the masses" by ensuring maximum device compatibility rather than optimizing for specific use cases.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-14T06:29:18.958Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:64-70
Timestamp: 2025-09-14T06:29:18.958Z
Learning: In the Armbian build system, vendor branch configurations in family files are designed to be shared across multiple SoCs within the same family that use the same vendor kernel tree. For example, rk35xx and rockchip-rk3588 families both use identical vendor branch settings (same KERNELSOURCE, KERNELBRANCH, and KERNELPATCHDIR), demonstrating that vendor branches are intentionally generic rather than SoC-specific.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-03T11:42:46.660Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:96-169
Timestamp: 2025-10-03T11:42:46.660Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), deletion of kernel config files does not need to be handled. The workflow intentionally only captures ACMR (added/copied/modified/renamed) changes and does not need to propagate deletions to the aggregator.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-22T07:56:19.424Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8789
File: config/kernel/linux-sunxi64-edge.config:839-839
Timestamp: 2025-10-22T07:56:19.424Z
Learning: In Linux kernel configuration, some `=y` (builtin) options are infrastructure or feature flags that enable subsystems or features for modular drivers, rather than directly compiling code into the kernel. For example, in Armbian wireless configs, options like CONFIG_SPARD_WLAN_SUPPORT=y, CONFIG_SC23XX=y, CONFIG_WCN_BSP_DRIVER_BUILDIN=y, CONFIG_UNISOC_WIFI_PS=y are module infrastructure/feature enablers, while the actual drivers (CONFIG_WLAN_UWE5621=m, CONFIG_WLAN_UWE5622=m) remain as loadable modules. These infrastructure options don't cause kernel bloat.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-27T13:03:53.146Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:2664-2671
Timestamp: 2025-07-27T13:03:53.146Z
Learning: In the Armbian build system's kernel configuration, when CONFIG_EXT2_FS=y and CONFIG_EXT3_FS=y are both set to built-in, EXT4 filesystem support becomes automatically available/hard-coded without requiring an explicit CONFIG_EXT4_FS line in the configuration file. This is specific to how Armbian handles kernel configuration and differs from typical standalone Linux kernel configuration behavior.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-08-30T06:56:33.372Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T06:56:33.372Z
Learning: In Armbian kernel configuration, the BTRFS configuration logic preserves existing settings (whether built-in 'y' or module 'm') and only sets BTRFS_FS to module when it was previously disabled or not set, achieving "allow but not require" flexibility while maintaining backward compatibility.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config
📚 Learning: 2025-03-31T12:57:13.880Z
Learnt from: libiunc
Repo: armbian/build PR: 8033
File: config/kernel/linux-starfive2-vendor.config:43-43
Timestamp: 2025-03-31T12:57:13.880Z
Learning: For StarFive2 platform kernel configurations, maintain alignment with vendor-provided configurations rather than modifying security settings like SECCOMP. This ensures hardware compatibility as intended by the manufacturer.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-27T13:03:53.146Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:2664-2671
Timestamp: 2025-07-27T13:03:53.146Z
Learning: In Linux kernel configuration for the Armbian build system, when CONFIG_EXT2_FS and CONFIG_EXT3_FS are both set to =y (built-in), CONFIG_EXT4_FS is automatically enabled/hard-coded and does not need to be explicitly specified in the configuration file. This dependency relationship means that EXT4 support is implicitly included when EXT2 and EXT3 are built into the kernel.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-26T11:14:41.697Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:82-83
Timestamp: 2025-07-26T11:14:41.697Z
Learning: In Linux kernel 6.13 and later, CONFIG_ZBUD was deprecated and is scheduled for removal in kernel 6.15. The zbud compressed page allocator was found to consume more memory than alternatives like zsmalloc. Therefore, CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD becomes obsolete in current kernels, and make defconfig will auto-correct by removing such deprecated options. This demonstrates how kernel defconfigs can be backwards compatible but not forward compatible.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-15T21:09:23.252Z
Learnt from: pyavitz
Repo: armbian/build PR: 8383
File: config/kernel/linux-sunxi64-edge.config:57-64
Timestamp: 2025-07-15T21:09:23.252Z
Learning: In Linux kernel configuration, when CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y is set, the ondemand governor is implicitly enabled by default, making the explicit CONFIG_CPU_FREQ_GOV_ONDEMAND=y line redundant. The make menuconfig tool automatically removes such redundant lines. This behavior applies to CPU frequency governor configurations in general - setting a default governor automatically enables that governor.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-06-25T03:40:52.109Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:40:52.109Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, when KERNELSOURCE is not explicitly declared in a case branch, the system falls back to a default KERNELSOURCE value, so missing KERNELSOURCE declarations are not critical issues.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:42:09.086Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:42:09.086Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, KERNELSOURCE is explicitly declared when using unofficial or 3rd party kernel repositories (like the "dev" branch using https://github.com/apritzel/linux), but can be omitted when using the standard mainline kernel (like the "edge" branch) since it will fall back to the default mainline source.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-22T21:52:01.225Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-201
Timestamp: 2025-09-22T21:52:01.225Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the kernel_config_modifying_hashes array is not universally required for all kernel configuration functions - some functions like armbian_kernel_config__netkit() operate without it, and adding entries with '=m' would be incorrect when the actual result might be '=y' for options already built-in.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-12T23:09:56.813Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9058
File: config/sources/families/spacemit.conf:39-45
Timestamp: 2025-12-12T23:09:56.813Z
Learning: In Armbian build configs for vendor kernel sources, prefer the following branch naming conventions: use 'vendor' or 'vendor-rt' for stable vendor releases, and 'vendor-edge' for bleeding-edge/pre-release vendor versions. The 'edge' naming without the 'vendor-' prefix is reserved for mainline kernel branches. Apply this pattern to family config files under config/sources/families (e.g., spacemit.conf) to ensure consistent vendor kernel sourcing naming across the repository.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
🔇 Additional comments (11)
config/boards/numaker-iot-ma35d16f90.conf (2)

11-17: Please verify BOOT_SCENARIO="blobless" + DT path are consistent with the family boot flow.

BOOT_FDT_FILE="nuvoton/ma35d1-iot-512m.dtb" and BOOT_SCENARIO="blobless" are high-impact knobs; if the family logic/bootscript expects different semantics (or expects fdtfile to come from U-Boot), this can lead to boot failures.


19-31: Serial console override: confirm agetty path and that overriding serial-getty@ttyS0 is the desired mechanism.

The systemd drop-in structure is OK, but please confirm the target rootfs has agetty at /sbin/agetty (vs /usr/sbin/agetty) and that ttyS0 is the correct serial device across all MA35D1 variants you intend to support.

config/bootenv/nuvoton-ma35d1.txt (1)

1-4: Verify console=serial and fdtfile=... semantics in the MA35D1 bootscript.

This file assumes the MA35D1 bootscript interprets console=serial and uses fdtfile as provided; please confirm it matches the actual parsing/override order (incl. armbianEnv.txt overrides and any U-Boot pre-set fdtfile).

patch/kernel/nuvoton-ma35d1-vendor/config/disable-btf.config (1)

1-3: Confirm the BTF config symbols exist for the exact 5.10 vendor kernel and actually take effect.

If CONFIG_DEBUG_INFO_BTF_MODULES (or either symbol) isn’t present in that kernel’s Kconfig, this overlay may silently do nothing.

patch/kernel/nuvoton-ma35d1-vendor/0001-disable-btf-for-old-toolchains.patch (1)

1-23: LGTM - Appropriate approach to disable BTF for MA35D1.

The Kconfig-level dependency is the cleanest way to disable BTF for this platform. Combined with KERNEL_BTF="no" in the family config and the config fragment, this provides defense-in-depth against BTF build failures with newer pahole versions on the 5.10.y vendor kernel.

config/kernel/linux-nuvoton-ma35d1-vendor.config (1)

1-680: Kernel configuration appears vendor-aligned and comprehensive.

The configuration enables all necessary MA35D1 platform drivers, container support (cgroups, namespaces, BPF), and networking features. A few observations for awareness:

  • CONFIG_MMC_DEBUG=y (line 588) and CONFIG_DEBUG_GPIO=y (line 386) add runtime overhead
  • CONFIG_PANIC_ON_OOPS=y with CONFIG_PANIC_TIMEOUT=1 (lines 671-672) will reboot quickly on kernel issues, which may complicate debugging
  • CONFIG_FTRACE is not set (line 680) limits kernel tracing capabilities

These appear to be intentional vendor defaults for a production-oriented embedded build.

config/bootscripts/boot-nuvoton-ma35d1.cmd (2)

7-16: Default environment setup looks correct.

The defaults are sensible: rootdev falls back to LABEL=armbi_root which requires initramfs for resolution, but the script handles missing initramfs gracefully (lines 105-108). PARTUUID auto-detection (lines 44-46) provides a more reliable default when available.


91-150: Boot sequence implementation is correct.

Proper error handling for kernel and DTB loading (exit on failure), graceful degradation for missing initramfs (boot without it), and correct use of booti for arm64. The memory layout comments (lines 17-26) are helpful for understanding the design.

config/sources/families/nuvoton-ma35d1.conf (3)

316-477: Header creation logic is well-documented and correctly implements Nuvoton format.

The embedded Python script properly constructs the boot header with:

  • Correct magic marker (0x4E565420 = "NVT ")
  • CRC32 over bytes 8-199 (excluding magic+CRC fields)
  • Image descriptors for DTB and BL2 at documented offsets
  • Signature fields filled with 0xFF for non-secure boot

The header format aligns with Nuvoton's NuWriter/Yocto implementation.


97-116: Good pattern for vendor defconfig integration.

The hook correctly loads Nuvoton's ma35d1_defconfig as a base, then merges Armbian customizations via merge_config.sh. This preserves vendor defaults while allowing Armbian-specific modifications.


118-134: Reasonable kernel config forcing for initrd compatibility.

Enabling all initrd compression formats ensures compatibility with any initramfs compression the build system might use, regardless of what Nuvoton's defconfig enables.

Add support for Nuvoton MA35D1 SoC family:
- ARM Cortex-A35 dual-core @ 800MHz + Cortex-M4 heterogeneous
- NuMaker IoT MA35D16F90 board (512MB DDR)
- Vendor kernel 5.10.140 from Nuvoton GitHub
- TF-A (BL2/BL31) + OP-TEE (BL32) + U-Boot (BL33) boot chain
- SD card boot support

Vendor kernel modules (pending):
Nuvoton provides closed-source Verisilicon licensed drivers:
- dcultrafb.ko (DCUltra display controller)
- ma35d1-vc8000.ko (H.264 video codec)
- galcore.ko (GPU driver)

These modules require exact kernel vermagic match:
  5.10.140-vendor-nuvoton-ma35d1 SMP mod_unload aarch64

Nuvoton is preparing custom builds of these modules for Armbian.

Signed-off-by: TuAFBogey <uguvenen@gmail.com>
- Rename board config to .csc (no maintainer)
- Remove duplicate board name from comment
- Change verbosity from 7 to 1 (default)
- Remove ATF patch, use ATF_SKIP_LDFLAGS_WL instead
- Move CONFIG_RD_* to kernel config (fix artifact caching)
- Fix networking comment (chrony -> NetworkManager)
- Replace -j12 with -j8
- Add fdt addr/resize after DTB reload on overlay error
@TuAFBogey TuAFBogey force-pushed the add-nuvoton-ma35d1-support branch from 61ccdb8 to 88a20e7 Compare January 9, 2026 14:08
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Actionable comments posted: 1

🤖 Fix all issues with AI agents
In @config/sources/families/nuvoton-ma35d1.conf:
- Around line 189-194: In compile_optee_ma35d1 (nuvoton-ma35d1.conf) remove the
runtime apt-get update/install lines and instead add "python3-pycryptodome" and
"python3-pyelftools" to the MA35D1 family's host dependency list by updating the
family's adaptative_prepare_host_dependencies entry in
lib/functions/host/prepare-host.sh (or the existing host_dependencies array for
MA35D1); ensure compile_optee_ma35d1 no longer performs apt-get and relies on
the declared host_dependencies for those packages.
🧹 Nitpick comments (4)
config/kernel/linux-nuvoton-ma35d1-vendor.config (1)

70-70: Consider whether NUMA is needed for this dual-core SoC.

CONFIG_NUMA=y is typically for multi-socket or heterogeneous memory systems. For a dual Cortex-A35 embedded SoC, this adds minor overhead without benefit. However, this is a non-blocking observation since the kernel will function correctly.

config/sources/families/nuvoton-ma35d1.conf (3)

183-187: Add error handling for OP-TEE clone operation.

The git clone may fail due to network issues, but the build continues. Consider adding explicit error checking.

🔧 Proposed fix
 	# Clone or update OP-TEE source
 	if [[ ! -d "${optee_src_dir}" ]]; then
 		display_alert "Cloning OP-TEE source" "${OPTEE_SOURCE}" "info"
-		run_host_command_logged git clone --depth 1 -b "${OPTEE_BRANCH##*:}" "${OPTEE_SOURCE}" "${optee_src_dir}"
+		run_host_command_logged git clone --depth 1 -b "${OPTEE_BRANCH##*:}" "${OPTEE_SOURCE}" "${optee_src_dir}" || exit_with_error "Failed to clone OP-TEE source"
 	fi

238-248: ATF directory path construction may be fragile.

The path ${SRC}/cache/sources/${ATFDIR}/${ATFBRANCH##*:} assumes ATFBRANCH follows branch:name format. If the format changes, the path will be incorrect. Consider adding a fallback or validation.


301-462: Inline Python for header generation works but consider extracting.

The 150+ line Python script embedded in a heredoc functions correctly for NuWriter header format, but maintenance may be challenging. Consider extracting to a separate Python file in the patch directory if this needs future modifications.

The header structure and CRC calculation logic appear correct per Nuvoton documentation.

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📥 Commits

Reviewing files that changed from the base of the PR and between 61ccdb8 and 88a20e7.

📒 Files selected for processing (5)
  • config/boards/numaker-iot-ma35d16f90.csc
  • config/bootenv/nuvoton-ma35d1.txt
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
🚧 Files skipped from review as they are similar to previous changes (1)
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
🧰 Additional context used
🧠 Learnings (53)
📓 Common learnings
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub API (https://api.github.com/repos/armbian/build/pulls/{pr_number}/files) to get the complete picture of what files are being added or modified, especially for U-Boot patches that will be applied during the build process.
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).
Learnt from: rpardini
Repo: armbian/build PR: 8879
File: config/sources/families/uefi-x86.conf:0-0
Timestamp: 2025-11-06T15:36:04.682Z
Learning: As of PR #8879, the uefi-x86 family in the Armbian build system now includes kernel patches for the first time. The current and edge branches for uefi-x86 are specifically configured for Apple T2-based x86 machines, including T2-specific patches from the linux-t2 project and custom kernel configuration options for Apple hardware drivers.
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:64-70
Timestamp: 2025-09-14T06:29:18.958Z
Learning: In the Armbian build system, vendor branch configurations in family files are designed to be shared across multiple SoCs within the same family that use the same vendor kernel tree. For example, rk35xx and rockchip-rk3588 families both use identical vendor branch settings (same KERNELSOURCE, KERNELBRANCH, and KERNELPATCHDIR), demonstrating that vendor branches are intentionally generic rather than SoC-specific.
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-17T05:09:02.306Z
Learning: In the Armbian build system, kernel patches (e.g., in patch/kernel/archive/sunxi-6.18/patches.armbian/) contain device tree overlays and other code that have existed for years and are maintained/ported across kernel versions. When reviewing PRs that modify these patch files, focus on the actual changes being made (e.g., Makefile fixes, new additions) rather than reviewing the entire existing content within the patch as if it were new code. The patch file contents are existing, stable code unless explicitly modified in the PR diff.
Learnt from: HackingGate
Repo: armbian/build PR: 8665
File: config/boards/photonicat2.csc:4-4
Timestamp: 2025-10-26T10:41:35.118Z
Learning: In the Armbian build system, rk3576 boards consistently use BOARDFAMILY="rk35xx" for both vendor and edge kernel targets. The rk35xx family configuration sources rockchip64_common.inc, which provides edge and current kernel branch definitions, making these branches available even though they're not defined directly in rk35xx.conf.
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:76-86
Timestamp: 2025-03-31T22:20:48.475Z
Learning: For the Armbian build project, maintaining consistency with existing patches across U-Boot versions (such as between 2025.01 and 2025.04) is prioritized over refactoring individual patches for code improvements.
📚 Learning: 2025-06-04T23:45:38.860Z
Learnt from: djurny
Repo: armbian/build PR: 8272
File: config/bootscripts/boot-mvebu.cmd:182-186
Timestamp: 2025-06-04T23:45:38.860Z
Learning: In config/bootscripts/boot-mvebu.cmd, the `fdtfile` variable is mandatory for booting and is pre-set by U-Boot, but can be overridden via armbianEnv.txt. If `fdtfile` is empty, the subsequent device tree file search logic will eventually fail and trigger the critical error "Cannot find DT!" with proper error handling.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:45:02.422Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/boards/numaker-iot-ma35d16f90.csc
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-12T21:44:09.061Z
Learnt from: Grippy98
Repo: armbian/build PR: 8624
File: config/boards/sk-am62p.conf:8-8
Timestamp: 2025-09-12T21:44:09.061Z
Learning: For TI K3 family boards in Armbian, BOOT_FDT_FILE uses .dts extension (not .dtb) as the standard convention. The build system handles this correctly by automatically compiling .dts to .dtb during kernel build and using the BOOT_FDT_FILE value directly in bootloader configurations.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/boards/numaker-iot-ma35d16f90.csc
📚 Learning: 2025-12-13T11:39:08.046Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.

Applied to files:

  • config/bootenv/nuvoton-ma35d1.txt
  • config/boards/numaker-iot-ma35d16f90.csc
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-02T20:49:56.719Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8849
File: config/boards/radxa-e54c.csc:14-28
Timestamp: 2025-11-02T20:49:56.719Z
Learning: In Armbian board configuration files (config/boards/*.conf, *.csc, etc.), do not use kernel_config_set, kernel_config_set_m, kernel_config_set_y, or custom_kernel_config__* functions to modify kernel configuration. Kernel configuration is associated with LINUXFAMILY/BOARDFAMILY, not individual BOARD. Board-specific kernel modifications cause inconsistency in kernel packages published to the apt repository because boards within a family share the same kernel packages. Kernel configuration changes must be made in the appropriate kernel config file (e.g., config/kernel/linux-*-*.config) or in family configuration files (config/sources/families/*.conf, *.inc) instead.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-18T03:36:17.862Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files (regardless of file extension), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features. The file extensions indicate board support status: .conf (standard support), .csc (community supported), .eos (end of support), .tvb (tvbox), .wip (work in progress).

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
📚 Learning: 2025-09-18T03:36:17.862Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files, .wip and .conf extensions require BOARD_MAINTAINER to be present and contain at least one maintainer. If no maintainer is present, the board support rules state it does not qualify for standard support and must be moved to community support (.csc extension). This is documented at https://docs.armbian.com/User-Guide_Board-Support-Rules/

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
📚 Learning: 2026-01-03T20:46:29.189Z
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-10-26T10:41:35.118Z
Learnt from: HackingGate
Repo: armbian/build PR: 8665
File: config/boards/photonicat2.csc:4-4
Timestamp: 2025-10-26T10:41:35.118Z
Learning: In the Armbian build system, rk3576 boards consistently use BOARDFAMILY="rk35xx" for both vendor and edge kernel targets. The rk35xx family configuration sources rockchip64_common.inc, which provides edge and current kernel branch definitions, making these branches available even though they're not defined directly in rk35xx.conf.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
📚 Learning: 2025-10-05T19:31:16.930Z
Learnt from: rpardini
Repo: armbian/build PR: 8718
File: config/boards/thinkpad-x13s.conf:185-185
Timestamp: 2025-10-05T19:31:16.930Z
Learning: In config/boards/thinkpad-x13s.conf, the x13s_obtain_firmware() function is reference-only utility code that never runs. It is kept for documentation purposes. Updates to firmware must be done at the armbian/firmware repository. TODO comments in this function are intentional reminders and should not be flagged.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
📚 Learning: 2025-09-07T17:39:32.272Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8586
File: config/boards/nanopi-r76s.conf:15-21
Timestamp: 2025-09-07T17:39:32.272Z
Learning: In the Armbian build system, the variables $BOARD and $SDCARD are always set by the build framework, so guard checks for these variables are unnecessary in board configuration files and hook functions.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
📚 Learning: 2025-10-14T05:08:11.785Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8754
File: config/boards/bestv-r3300-l.csc:14-16
Timestamp: 2025-10-14T05:08:11.785Z
Learning: In the Armbian build system, BOOTBRANCH_BOARD is a valid framework variable used as a fallback when BOOTBRANCH is unset. The framework checks BOOTBRANCH_BOARD before applying the default bootloader branch value (see config/sources/common.conf). Board configuration files can use BOOTBRANCH_BOARD to specify the bootloader branch.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-23T07:30:52.265Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-10T22:05:40.490Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8913
File: config/sources/families/k3-beagle.conf:16-16
Timestamp: 2025-11-10T22:05:40.490Z
Learning: In the Armbian build system, kernel branches using non-mainline/vendor forks (like BeagleBoard's linux repository) should be named "vendor" or "vendor-rt" rather than "current" or "edge". The "current" and "edge" naming is reserved for mainline kernel branches. This affects both the case statement in family config files (e.g., `vendor | vendor-rt)` instead of `current | current-rt)`) and the corresponding KERNEL_TARGET declarations in board config files.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-28T15:39:55.793Z
Learnt from: rpardini
Repo: armbian/build PR: 9119
File: config/boards/mixtile-core3588e.csc:1-1
Timestamp: 2025-12-28T15:39:55.793Z
Learning: In board configuration comments, e.g., a reference to Jetson SoM, treat it as indicating compatibility with the form factor/pin layout rather than implying the board uses an NVIDIA Jetson product. This helps reviewers avoid misclassifying boards as Jetson-based. Apply this understanding broadly to all .csc files under config/boards to ensure consistent interpretation of form-factor references.

Applied to files:

  • config/boards/numaker-iot-ma35d16f90.csc
📚 Learning: 2025-06-25T03:40:52.109Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:40:52.109Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, when KERNELSOURCE is not explicitly declared in a case branch, the system falls back to a default KERNELSOURCE value, so missing KERNELSOURCE declarations are not critical issues.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:04.845Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-edge.config:80-82
Timestamp: 2025-09-27T21:50:04.845Z
Learning: In the Armbian build system, kernel configuration files are generated through this automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-27T21:49:55.796Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-current.config:78-80
Timestamp: 2025-09-27T21:49:55.796Z
Learning: In the Armbian build system, kernel configuration files are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-27T21:47:58.020Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-bcm2711-edge.config:859-861
Timestamp: 2025-09-27T21:47:58.020Z
Learning: In the Armbian build system, kernel configuration files in config/kernel/ are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-17T04:12:33.125Z
Learnt from: pyavitz
Repo: armbian/build PR: 8388
File: config/boards/kickpik2b.conf:1-14
Timestamp: 2025-07-17T04:12:33.125Z
Learning: In the Armbian build system, board configuration files (*.conf) follow a project standard of not including shebang lines, even though they contain bash code and are sourced by the build system. This is an established Armbian convention that individual contributors are expected to follow, and changes to this standard would require broader project maintainer approval.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:42:09.086Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:42:09.086Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, KERNELSOURCE is explicitly declared when using unofficial or 3rd party kernel repositories (like the "dev" branch using https://github.com/apritzel/linux), but can be omitted when using the standard mainline kernel (like the "edge" branch) since it will fall back to the default mainline source.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-03T11:42:46.660Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:96-169
Timestamp: 2025-10-03T11:42:46.660Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), deletion of kernel config files does not need to be handled. The workflow intentionally only captures ACMR (added/copied/modified/renamed) changes and does not need to propagate deletions to the aggregator.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-12T19:28:38.491Z
Learnt from: Grippy98
Repo: armbian/build PR: 8622
File: config/sources/families/k3.conf:66-66
Timestamp: 2025-09-12T19:28:38.491Z
Learning: In the Armbian k3 family build system (config/sources/families/k3.conf), builds do not fail when TIBOOT3_BOOTCONFIG is unset, even though tiboot3.bin is still listed in UBOOT_TARGET_MAP. The gating mechanism in pre_config_uboot_target__build_first_stage function works as intended to conditionally build/copy tiboot3.bin only when TIBOOT3_BOOTCONFIG is defined.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:15.915Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sunxi64-current.config:94-94
Timestamp: 2025-09-27T21:50:15.915Z
Learning: When kernel config files are generated through Armbian's automated process (previous config → armbian-kernel.sh changes → make oldconfig → Armbian machinery processing), manual config file edits are not appropriate since they would be overwritten. Deprecated option handling should be implemented in the automated tooling instead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-08-30T04:13:16.457Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T04:13:16.457Z
Learning: Armbian kernel configuration files like linux-filogic-current.config are autogenerated overlays on top of arch defconfig. Comments added manually will be lost during future updates by maintainers, and explicit "CONFIG_OPTION is not set" statements aren't needed for mutually exclusive options since these are overlay configs that only specify changes from the base configuration.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-22T21:52:01.225Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-201
Timestamp: 2025-09-22T21:52:01.225Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the kernel_config_modifying_hashes array is not universally required for all kernel configuration functions - some functions like armbian_kernel_config__netkit() operate without it, and adding entries with '=m' would be incorrect when the actual result might be '=y' for options already built-in.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-27T15:53:30.629Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:805-825
Timestamp: 2025-07-27T15:53:30.629Z
Learning: In the Armbian build system, kernel configurations prioritize broad hardware compatibility over optimization concerns. Even when including numerous legacy/obsolete drivers causes technical issues like increased initramfs size and slower enumeration, the project philosophy is to "appease the masses" by ensuring maximum device compatibility rather than optimizing for specific use cases.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-25T18:37:00.330Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-21T04:12:02.439Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-07-21T04:12:02.439Z
Learning: In the Armbian build system, for recurring maintenance tasks like kernel version bumping, TODO comments should use generic version formats (e.g., "MAJOR.MINOR-rc1") rather than specific version numbers (e.g., "6.17-rc1") to avoid the need for frequent comment updates that would create unnecessary maintenance overhead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-11T06:16:10.236Z
Learnt from: SuperKali
Repo: armbian/build PR: 8609
File: config/boards/nanopi-r76s.conf:5-5
Timestamp: 2025-09-11T06:16:10.236Z
Learning: In Armbian board configuration files, WIP (Work In Progress) comments describe intended goals or planned features rather than current implementation state. For example, a comment like "WIP: current kernel" indicates that current kernel support is being worked toward, even if KERNEL_TARGET doesn't yet include "current".

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-07T18:21:35.944Z
Learnt from: rpardini
Repo: armbian/build PR: 9180
File: patch/kernel/archive/sm8250-6.18/0000.patching_config.yaml:4-8
Timestamp: 2026-01-07T18:21:35.944Z
Learning: In Armbian patch/kernel/archive/**/0000.patching_config.yaml files, the version metadata fields (name, branch, last-known-good-tag, kind, type) under the "info stuff" comment are not used by the patching scripts. When reviewing these files, do not suggest updating or fixing these metadata fields. Instead, suggest removing them entirely as they serve no functional purpose.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-11T20:56:20.303Z
Learnt from: glneo
Repo: armbian/build PR: 8913
File: config/sources/families/include/k3_common.inc:57-60
Timestamp: 2025-11-11T20:56:20.303Z
Learning: In config/sources/families/include/k3_common.inc, the OP-TEE build command at line 59 should be updated in a future PR to explicitly set CROSS_COMPILE64=aarch64-linux-gnu- and CROSS_COMPILE32=arm-linux-gnueabihf- instead of relying on OP-TEE's internal defaults, for better clarity and maintainability. User glneo agreed to address this in a separate PR.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-20T18:20:11.985Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8968
File: patch/u-boot/u-boot-sunxi/arm64-dts-sun50i-h6-orangepi.dtsi-Rollback-r_rsb-to-r_i2c.patch:36-36
Timestamp: 2025-11-20T18:20:11.985Z
Learning: The rewrite-patches tool (REWRITE_PATCHES=yes) in the Armbian build system can inadvertently introduce semantic changes when the u-boot/kernel git base revision differs from expected state. The tool applies patches, commits them, and re-exports them using git format-patch, which can cause the re-exported patch to reflect the base revision's state rather than preserving the original patch intent. This is particularly problematic for device tree changes like interrupt specifications. The tool currently lacks validation mechanisms to detect such semantic drift, and affected patches must be manually corrected after rewriting.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-23T10:01:41.310Z
Learnt from: amazingfate
Repo: armbian/build PR: 8419
File: lib/functions/host/prepare-host.sh:272-275
Timestamp: 2025-07-23T10:01:41.310Z
Learning: In the Armbian build system, the design philosophy is to fail fast when host dependencies are not met rather than gracefully skipping unsupported architectures. This ensures build environment consistency and prevents silent failures. Host dependency checks should be explicit and non-negotiable.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-18T23:40:55.905Z
Learnt from: rpardini
Repo: armbian/build PR: 9101
File: lib/functions/image/compress-checksum.sh:44-48
Timestamp: 2025-12-18T23:40:55.905Z
Learning: In the Armbian build framework, host dependencies are strictly controlled, ensuring that specific tools like `zstdmt` are guaranteed to be available in the build environment.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-22T00:45:26.182Z
Learnt from: djurny
Repo: armbian/build PR: 8315
File: lib/functions/rootfs/distro-agnostic.sh:54-68
Timestamp: 2025-06-22T00:45:26.182Z
Learning: In Armbian build system, external command dependencies like envsubst are handled by adding the required packages (e.g., gettext for envsubst) to host_dependencies in adaptative_prepare_host_dependencies function in lib/functions/host/prepare-host.sh, rather than checking command availability at runtime.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-30T06:48:09.091Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T06:48:09.091Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the user prefers flexible grep patterns over anchored ones for BTRFS configuration checks, but agrees to use quiet grep (-q) to avoid polluting build logs.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-16T13:40:07.649Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-24T04:46:22.901Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-10-24T04:46:22.901Z
Learning: In lib/functions/rootfs/rootfs-create.sh, the FIXME comment about mmdebstrap usage with --aptopt is a future note related to PR #8785, which hasn't been merged yet.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:14:36.024Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:38-44
Timestamp: 2025-06-12T21:14:36.024Z
Learning: In config/bootscripts/boot-sunxi.cmd the unconditional "+1" increment in func_align_addr_next (when align_overlap_oboe_avoidance="on") is intentional. It compensates for a known off-by-one error in U-Boot where the end address is calculated as start+size instead of start+size-1, so the extra page prevents overlap. This behavior should not be “optimized away”.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-05-07T20:49:40.969Z
Learnt from: djurny
Repo: armbian/build PR: 8166
File: config/bootscripts/boot-mvebu.cmd:38-50
Timestamp: 2025-05-07T20:49:40.969Z
Learning: The 4KB (0x1000) boundary used for device tree size calculations in U-Boot scripts is specific to how the `fdt resize` command works internally and should remain hardcoded rather than being tied to adjustable alignment variables.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-14T06:32:29.806Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-09T10:53:01.501Z
Learnt from: rpardini
Repo: armbian/build PR: 9192
File: lib/functions/compilation/uboot.sh:470-483
Timestamp: 2026-01-09T10:53:01.501Z
Learning: In the Armbian build system (lib/functions/compilation/uboot.sh), binwalk requires the `--run-as=root` flag when analyzing u-boot binaries because the build system runs as root. Binwalk detects root execution and refuses to proceed without explicit consent via this flag, even for analysis-only operations without extraction.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-12T23:09:56.813Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9058
File: config/sources/families/spacemit.conf:39-45
Timestamp: 2025-12-12T23:09:56.813Z
Learning: In Armbian build configs for vendor kernel sources, prefer the following branch naming conventions: use 'vendor' or 'vendor-rt' for stable vendor releases, and 'vendor-edge' for bleeding-edge/pre-release vendor versions. The 'edge' naming without the 'vendor-' prefix is reserved for mainline kernel branches. Apply this pattern to family config files under config/sources/families (e.g., spacemit.conf) to ensure consistent vendor kernel sourcing naming across the repository.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-14T06:29:18.958Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:64-70
Timestamp: 2025-09-14T06:29:18.958Z
Learning: In the Armbian build system, vendor branch configurations in family files are designed to be shared across multiple SoCs within the same family that use the same vendor kernel tree. For example, rk35xx and rockchip-rk3588 families both use identical vendor branch settings (same KERNELSOURCE, KERNELBRANCH, and KERNELPATCHDIR), demonstrating that vendor branches are intentionally generic rather than SoC-specific.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-10-22T07:56:19.424Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8789
File: config/kernel/linux-sunxi64-edge.config:839-839
Timestamp: 2025-10-22T07:56:19.424Z
Learning: In Linux kernel configuration, some `=y` (builtin) options are infrastructure or feature flags that enable subsystems or features for modular drivers, rather than directly compiling code into the kernel. For example, in Armbian wireless configs, options like CONFIG_SPARD_WLAN_SUPPORT=y, CONFIG_SC23XX=y, CONFIG_WCN_BSP_DRIVER_BUILDIN=y, CONFIG_UNISOC_WIFI_PS=y are module infrastructure/feature enablers, while the actual drivers (CONFIG_WLAN_UWE5621=m, CONFIG_WLAN_UWE5622=m) remain as loadable modules. These infrastructure options don't cause kernel bloat.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-27T13:03:53.146Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:2664-2671
Timestamp: 2025-07-27T13:03:53.146Z
Learning: In the Armbian build system's kernel configuration, when CONFIG_EXT2_FS=y and CONFIG_EXT3_FS=y are both set to built-in, EXT4 filesystem support becomes automatically available/hard-coded without requiring an explicit CONFIG_EXT4_FS line in the configuration file. This is specific to how Armbian handles kernel configuration and differs from typical standalone Linux kernel configuration behavior.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-08-30T06:56:33.372Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T06:56:33.372Z
Learning: In Armbian kernel configuration, the BTRFS configuration logic preserves existing settings (whether built-in 'y' or module 'm') and only sets BTRFS_FS to module when it was previously disabled or not set, achieving "allow but not require" flexibility while maintaining backward compatibility.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-03-31T12:57:13.880Z
Learnt from: libiunc
Repo: armbian/build PR: 8033
File: config/kernel/linux-starfive2-vendor.config:43-43
Timestamp: 2025-03-31T12:57:13.880Z
Learning: For StarFive2 platform kernel configurations, maintain alignment with vendor-provided configurations rather than modifying security settings like SECCOMP. This ensures hardware compatibility as intended by the manufacturer.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-27T13:03:53.146Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:2664-2671
Timestamp: 2025-07-27T13:03:53.146Z
Learning: In Linux kernel configuration for the Armbian build system, when CONFIG_EXT2_FS and CONFIG_EXT3_FS are both set to =y (built-in), CONFIG_EXT4_FS is automatically enabled/hard-coded and does not need to be explicitly specified in the configuration file. This dependency relationship means that EXT4 support is implicitly included when EXT2 and EXT3 are built into the kernel.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-26T11:14:41.697Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:82-83
Timestamp: 2025-07-26T11:14:41.697Z
Learning: In Linux kernel 6.13 and later, CONFIG_ZBUD was deprecated and is scheduled for removal in kernel 6.15. The zbud compressed page allocator was found to consume more memory than alternatives like zsmalloc. Therefore, CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD becomes obsolete in current kernels, and make defconfig will auto-correct by removing such deprecated options. This demonstrates how kernel defconfigs can be backwards compatible but not forward compatible.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-15T21:09:23.252Z
Learnt from: pyavitz
Repo: armbian/build PR: 8383
File: config/kernel/linux-sunxi64-edge.config:57-64
Timestamp: 2025-07-15T21:09:23.252Z
Learning: In Linux kernel configuration, when CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y is set, the ondemand governor is implicitly enabled by default, making the explicit CONFIG_CPU_FREQ_GOV_ONDEMAND=y line redundant. The make menuconfig tool automatically removes such redundant lines. This behavior applies to CPU frequency governor configurations in general - setting a default governor automatically enables that governor.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
🔇 Additional comments (9)
config/boards/numaker-iot-ma35d16f90.csc (2)

1-16: Board configuration looks well-structured.

The hardware description, board variables, and settings align with the MA35D1 platform and NuMaker IoT board specifications. Using .csc extension is appropriate for community-supported hardware.


18-30: Serial console override implementation is correct.

The systemd override for serial-getty@ttyS0 properly sets 115200 baud rate with appropriate agetty options. The heredoc syntax and escaping (\\u) are correct for this context.

config/kernel/linux-nuvoton-ma35d1-vendor.config (2)

1-12: Kernel configuration provides comprehensive MA35D1 support.

The vendor defconfig enables required subsystems (MTD/NAND, STMMAC Ethernet, USB, MMC, CAN, OP-TEE, remoteproc for M4 core) and all initrd compression formats needed for Armbian boot. Hardware-specific drivers (MA35D1_*) are properly enabled.


619-619: Remove this comment — MA35D1 lacks IOMMU/SMMU hardware.

The MA35D1 does not have ARM SMMU or IOMMU support in its hardware design. The platform provides PDMA and TrustZone/TSI security mechanisms instead. Disabling CONFIG_IOMMU_SUPPORT in the vendor configuration correctly matches the actual hardware capabilities and requires no security review.

Likely an incorrect or invalid review comment.

config/sources/families/nuvoton-ma35d1.conf (4)

14-22: Global settings are appropriate for MA35D1 vendor kernel.

LOCALVERSION="" ensures clean kernel version for Nuvoton module compatibility, KERNEL_BTF="no" avoids toolchain issues with 5.10.y, and NETWORKING_STACK="network-manager" is standard. These align with the PR objectives regarding vendor driver vermagic requirements.


99-118: Kernel config merge approach is sound.

The armbian_kernel_config__use_nuvoton_defconfig function correctly loads the vendor defconfig as base and merges Armbian's fragment on top using scripts/kconfig/merge_config.sh. This ensures vendor hardware support while adding Armbian-specific options.


466-503: SD card write layout implementation is correct.

The write_uboot_platform function correctly places boot artifacts at the documented offsets:

  • Header at sectors 2-3 (0x400, 0x600)
  • DTB at 128KB (0x20000)
  • BL2 at 192KB (0x30000)
  • FIP at 768KB (0xC0000)

This matches Yocto/NuWriter layout per the comments.


72-84: Vendor branch configuration is properly structured.

The case statement for vendor branch correctly sets kernel source, branch, patch directory, and defconfig. Using KERNEL_MAJOR_MINOR="5.10" ensures proper kernel versioning. The structure follows Armbian patterns for vendor kernel families.

config/bootenv/nuvoton-ma35d1.txt (1)

1-3: Boot environment settings are consistent with board configuration.

The fdtfile, console, and bootlogo values correctly match the corresponding settings in numaker-iot-ma35d16f90.csc (BOOT_FDT_FILE, DEFAULT_CONSOLE, BOOT_LOGO). This ensures coherent boot behavior across the build system.

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Actionable comments posted: 1

🧹 Nitpick comments (4)
config/sources/families/nuvoton-ma35d1.conf (4)

201-202: Consider preserving make clean output for debugging.

Redirecting stderr to /dev/null with 2>/dev/null may hide useful diagnostic information if the clean step fails unexpectedly. Consider using || true without stderr suppression, or at least logging at debug level.

Suggested improvement
-	run_host_command_logged make -C "${optee_src_dir}" clean PLATFORM=nuvoton-MA35D1 2>/dev/null || true
+	run_host_command_logged make -C "${optee_src_dir}" clean PLATFORM=nuvoton-MA35D1 || true

487-502: Consider adding sync after bootloader writes.

The dd commands use conv=notrunc and status=none (following Armbian conventions), but there's no explicit sync call after writing the bootloader components. For SD card reliability, especially on removable media, consider adding a sync at the end of the function.

Suggested improvement
 	# Write FIP at 768KB offset (0xC0000)
 	dd if="${fip_bin}" of="${target_dev}" bs=1024 seek=768 conv=notrunc status=none
 
+	# Ensure all data is flushed to the device
+	sync
+
 	display_alert "Bootloader written" "header + bl2 + fip" "info"
 }

73-77: Track the clean kernel version extension as a TODO.

The commented-out enable_extension "nuvoton-clean-kernel-version" indicates pending work for Nuvoton precompiled module compatibility (vermagic matching). Consider creating an issue to track this, as it's documented as needed but currently disabled due to packaging issues.

Would you like me to open an issue to track the clean kernel version extension implementation for Nuvoton MA35D1 module compatibility?


240-250: Use the framework's ATFSOURCEDIR variable instead of manually reconstructing the path.

The path construction at line 241 is mathematically correct (the ##*: string manipulation matches the framework's branch2dir function), but nuvoton-ma35d1.conf is the only family manually reconstructing the ATF directory path. The framework declares ATFSOURCEDIR globally in config-prepare.sh:240 for exactly this purpose. Replace:

local atf_dir="${SRC}/cache/sources/${ATFDIR}/${ATFBRANCH##*:}"

with:

local atf_dir="${SRC}/cache/sources/${ATFSOURCEDIR}"

This aligns with the framework's standard pattern used in other families and atf.sh compilation functions.

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  • config/sources/families/nuvoton-ma35d1.conf
🧰 Additional context used
🧠 Learnings (47)
📓 Common learnings
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>
Learnt from: rpardini
Repo: armbian/build PR: 8879
File: config/sources/families/uefi-x86.conf:0-0
Timestamp: 2025-11-06T15:36:04.682Z
Learning: As of PR #8879, the uefi-x86 family in the Armbian build system now includes kernel patches for the first time. The current and edge branches for uefi-x86 are specifically configured for Apple T2-based x86 machines, including T2-specific patches from the linux-t2 project and custom kernel configuration options for Apple hardware drivers.
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub API (https://api.github.com/repos/armbian/build/pulls/{pr_number}/files) to get the complete picture of what files are being added or modified, especially for U-Boot patches that will be applied during the build process.
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files (regardless of file extension), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features. The file extensions indicate board support status: .conf (standard support), .csc (community supported), .eos (end of support), .tvb (tvbox), .wip (work in progress).
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:76-86
Timestamp: 2025-03-31T22:20:48.475Z
Learning: For the Armbian build project, maintaining consistency with existing patches across U-Boot versions (such as between 2025.01 and 2025.04) is prioritized over refactoring individual patches for code improvements.
Learnt from: HackingGate
Repo: armbian/build PR: 8665
File: config/boards/photonicat2.csc:4-4
Timestamp: 2025-10-26T10:41:35.118Z
Learning: In the Armbian build system, rk3576 boards consistently use BOARDFAMILY="rk35xx" for both vendor and edge kernel targets. The rk35xx family configuration sources rockchip64_common.inc, which provides edge and current kernel branch definitions, making these branches available even though they're not defined directly in rk35xx.conf.
Learnt from: tabrisnet
Repo: armbian/build PR: 8925
File: lib/functions/host/docker.sh:141-141
Timestamp: 2025-11-13T14:50:44.662Z
Learning: In the Armbian build system, certain boards have U-Boot that doesn't build correctly on ubuntu:noble but works on ubuntu:jammy. For these boards, DOCKER_ARMBIAN_BASE_IMAGE can be set to "ubuntu:jammy" via an extension file loaded before docker_cli_prepare() runs, allowing legacy toolchains to work while the community works on proper fixes with limited resources.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files, .wip and .conf extensions require BOARD_MAINTAINER to be present and contain at least one maintainer. If no maintainer is present, the board support rules state it does not qualify for standard support and must be moved to community support (.csc extension). This is documented at https://docs.armbian.com/User-Guide_Board-Support-Rules/
📚 Learning: 2025-11-02T20:49:56.719Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8849
File: config/boards/radxa-e54c.csc:14-28
Timestamp: 2025-11-02T20:49:56.719Z
Learning: In Armbian board configuration files (config/boards/*.conf, *.csc, etc.), do not use kernel_config_set, kernel_config_set_m, kernel_config_set_y, or custom_kernel_config__* functions to modify kernel configuration. Kernel configuration is associated with LINUXFAMILY/BOARDFAMILY, not individual BOARD. Board-specific kernel modifications cause inconsistency in kernel packages published to the apt repository because boards within a family share the same kernel packages. Kernel configuration changes must be made in the appropriate kernel config file (e.g., config/kernel/linux-*-*.config) or in family configuration files (config/sources/families/*.conf, *.inc) instead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:40:52.109Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:40:52.109Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, when KERNELSOURCE is not explicitly declared in a case branch, the system falls back to a default KERNELSOURCE value, so missing KERNELSOURCE declarations are not critical issues.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:04.845Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-edge.config:80-82
Timestamp: 2025-09-27T21:50:04.845Z
Learning: In the Armbian build system, kernel configuration files are generated through this automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-03T20:46:29.189Z
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:47:58.020Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-bcm2711-edge.config:859-861
Timestamp: 2025-09-27T21:47:58.020Z
Learning: In the Armbian build system, kernel configuration files in config/kernel/ are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:49:55.796Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-current.config:78-80
Timestamp: 2025-09-27T21:49:55.796Z
Learning: In the Armbian build system, kernel configuration files are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:42:09.086Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:42:09.086Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, KERNELSOURCE is explicitly declared when using unofficial or 3rd party kernel repositories (like the "dev" branch using https://github.com/apritzel/linux), but can be omitted when using the standard mainline kernel (like the "edge" branch) since it will fall back to the default mainline source.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-17T04:12:33.125Z
Learnt from: pyavitz
Repo: armbian/build PR: 8388
File: config/boards/kickpik2b.conf:1-14
Timestamp: 2025-07-17T04:12:33.125Z
Learning: In the Armbian build system, board configuration files (*.conf) follow a project standard of not including shebang lines, even though they contain bash code and are sourced by the build system. This is an established Armbian convention that individual contributors are expected to follow, and changes to this standard would require broader project maintainer approval.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-03T11:42:46.660Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:96-169
Timestamp: 2025-10-03T11:42:46.660Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), deletion of kernel config files does not need to be handled. The workflow intentionally only captures ACMR (added/copied/modified/renamed) changes and does not need to propagate deletions to the aggregator.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-14T06:29:18.958Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:64-70
Timestamp: 2025-09-14T06:29:18.958Z
Learning: In the Armbian build system, vendor branch configurations in family files are designed to be shared across multiple SoCs within the same family that use the same vendor kernel tree. For example, rk35xx and rockchip-rk3588 families both use identical vendor branch settings (same KERNELSOURCE, KERNELBRANCH, and KERNELPATCHDIR), demonstrating that vendor branches are intentionally generic rather than SoC-specific.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:15.915Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sunxi64-current.config:94-94
Timestamp: 2025-09-27T21:50:15.915Z
Learning: When kernel config files are generated through Armbian's automated process (previous config → armbian-kernel.sh changes → make oldconfig → Armbian machinery processing), manual config file edits are not appropriate since they would be overwritten. Deprecated option handling should be implemented in the automated tooling instead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-30T04:13:16.457Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T04:13:16.457Z
Learning: Armbian kernel configuration files like linux-filogic-current.config are autogenerated overlays on top of arch defconfig. Comments added manually will be lost during future updates by maintainers, and explicit "CONFIG_OPTION is not set" statements aren't needed for mutually exclusive options since these are overlay configs that only specify changes from the base configuration.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-22T21:52:01.225Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-201
Timestamp: 2025-09-22T21:52:01.225Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the kernel_config_modifying_hashes array is not universally required for all kernel configuration functions - some functions like armbian_kernel_config__netkit() operate without it, and adding entries with '=m' would be incorrect when the actual result might be '=y' for options already built-in.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-27T15:53:30.629Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:805-825
Timestamp: 2025-07-27T15:53:30.629Z
Learning: In the Armbian build system, kernel configurations prioritize broad hardware compatibility over optimization concerns. Even when including numerous legacy/obsolete drivers causes technical issues like increased initramfs size and slower enumeration, the project philosophy is to "appease the masses" by ensuring maximum device compatibility rather than optimizing for specific use cases.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-25T18:37:00.330Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-21T04:12:02.439Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-07-21T04:12:02.439Z
Learning: In the Armbian build system, for recurring maintenance tasks like kernel version bumping, TODO comments should use generic version formats (e.g., "MAJOR.MINOR-rc1") rather than specific version numbers (e.g., "6.17-rc1") to avoid the need for frequent comment updates that would create unnecessary maintenance overhead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-11T06:16:10.236Z
Learnt from: SuperKali
Repo: armbian/build PR: 8609
File: config/boards/nanopi-r76s.conf:5-5
Timestamp: 2025-09-11T06:16:10.236Z
Learning: In Armbian board configuration files, WIP (Work In Progress) comments describe intended goals or planned features rather than current implementation state. For example, a comment like "WIP: current kernel" indicates that current kernel support is being worked toward, even if KERNEL_TARGET doesn't yet include "current".

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-07T18:21:35.944Z
Learnt from: rpardini
Repo: armbian/build PR: 9180
File: patch/kernel/archive/sm8250-6.18/0000.patching_config.yaml:4-8
Timestamp: 2026-01-07T18:21:35.944Z
Learning: In Armbian patch/kernel/archive/**/0000.patching_config.yaml files, the version metadata fields (name, branch, last-known-good-tag, kind, type) under the "info stuff" comment are not used by the patching scripts. When reviewing these files, do not suggest updating or fixing these metadata fields. Instead, suggest removing them entirely as they serve no functional purpose.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-11T20:56:20.303Z
Learnt from: glneo
Repo: armbian/build PR: 8913
File: config/sources/families/include/k3_common.inc:57-60
Timestamp: 2025-11-11T20:56:20.303Z
Learning: In config/sources/families/include/k3_common.inc, the OP-TEE build command at line 59 should be updated in a future PR to explicitly set CROSS_COMPILE64=aarch64-linux-gnu- and CROSS_COMPILE32=arm-linux-gnueabihf- instead of relying on OP-TEE's internal defaults, for better clarity and maintainability. User glneo agreed to address this in a separate PR.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-20T18:20:11.985Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8968
File: patch/u-boot/u-boot-sunxi/arm64-dts-sun50i-h6-orangepi.dtsi-Rollback-r_rsb-to-r_i2c.patch:36-36
Timestamp: 2025-11-20T18:20:11.985Z
Learning: The rewrite-patches tool (REWRITE_PATCHES=yes) in the Armbian build system can inadvertently introduce semantic changes when the u-boot/kernel git base revision differs from expected state. The tool applies patches, commits them, and re-exports them using git format-patch, which can cause the re-exported patch to reflect the base revision's state rather than preserving the original patch intent. This is particularly problematic for device tree changes like interrupt specifications. The tool currently lacks validation mechanisms to detect such semantic drift, and affected patches must be manually corrected after rewriting.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-23T10:01:41.310Z
Learnt from: amazingfate
Repo: armbian/build PR: 8419
File: lib/functions/host/prepare-host.sh:272-275
Timestamp: 2025-07-23T10:01:41.310Z
Learning: In the Armbian build system, the design philosophy is to fail fast when host dependencies are not met rather than gracefully skipping unsupported architectures. This ensures build environment consistency and prevents silent failures. Host dependency checks should be explicit and non-negotiable.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-18T23:40:55.905Z
Learnt from: rpardini
Repo: armbian/build PR: 9101
File: lib/functions/image/compress-checksum.sh:44-48
Timestamp: 2025-12-18T23:40:55.905Z
Learning: In the Armbian build framework, host dependencies are strictly controlled, ensuring that specific tools like `zstdmt` are guaranteed to be available in the build environment.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-22T00:45:26.182Z
Learnt from: djurny
Repo: armbian/build PR: 8315
File: lib/functions/rootfs/distro-agnostic.sh:54-68
Timestamp: 2025-06-22T00:45:26.182Z
Learning: In Armbian build system, external command dependencies like envsubst are handled by adding the required packages (e.g., gettext for envsubst) to host_dependencies in adaptative_prepare_host_dependencies function in lib/functions/host/prepare-host.sh, rather than checking command availability at runtime.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-30T06:48:09.091Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T06:48:09.091Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the user prefers flexible grep patterns over anchored ones for BTRFS configuration checks, but agrees to use quiet grep (-q) to avoid polluting build logs.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-16T13:40:07.649Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-10T22:05:40.490Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8913
File: config/sources/families/k3-beagle.conf:16-16
Timestamp: 2025-11-10T22:05:40.490Z
Learning: In the Armbian build system, kernel branches using non-mainline/vendor forks (like BeagleBoard's linux repository) should be named "vendor" or "vendor-rt" rather than "current" or "edge". The "current" and "edge" naming is reserved for mainline kernel branches. This affects both the case statement in family config files (e.g., `vendor | vendor-rt)` instead of `current | current-rt)`) and the corresponding KERNEL_TARGET declarations in board config files.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-24T04:46:22.901Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-10-24T04:46:22.901Z
Learning: In lib/functions/rootfs/rootfs-create.sh, the FIXME comment about mmdebstrap usage with --aptopt is a future note related to PR #8785, which hasn't been merged yet.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-12T19:28:38.491Z
Learnt from: Grippy98
Repo: armbian/build PR: 8622
File: config/sources/families/k3.conf:66-66
Timestamp: 2025-09-12T19:28:38.491Z
Learning: In the Armbian k3 family build system (config/sources/families/k3.conf), builds do not fail when TIBOOT3_BOOTCONFIG is unset, even though tiboot3.bin is still listed in UBOOT_TARGET_MAP. The gating mechanism in pre_config_uboot_target__build_first_stage function works as intended to conditionally build/copy tiboot3.bin only when TIBOOT3_BOOTCONFIG is defined.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:14:36.024Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:38-44
Timestamp: 2025-06-12T21:14:36.024Z
Learning: In config/bootscripts/boot-sunxi.cmd the unconditional "+1" increment in func_align_addr_next (when align_overlap_oboe_avoidance="on") is intentional. It compensates for a known off-by-one error in U-Boot where the end address is calculated as start+size instead of start+size-1, so the extra page prevents overlap. This behavior should not be “optimized away”.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-05-07T20:49:40.969Z
Learnt from: djurny
Repo: armbian/build PR: 8166
File: config/bootscripts/boot-mvebu.cmd:38-50
Timestamp: 2025-05-07T20:49:40.969Z
Learning: The 4KB (0x1000) boundary used for device tree size calculations in U-Boot scripts is specific to how the `fdt resize` command works internally and should remain hardcoded rather than being tied to adjustable alignment variables.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-14T06:32:29.806Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-04T23:45:38.860Z
Learnt from: djurny
Repo: armbian/build PR: 8272
File: config/bootscripts/boot-mvebu.cmd:182-186
Timestamp: 2025-06-04T23:45:38.860Z
Learning: In config/bootscripts/boot-mvebu.cmd, the `fdtfile` variable is mandatory for booting and is pre-set by U-Boot, but can be overridden via armbianEnv.txt. If `fdtfile` is empty, the subsequent device tree file search logic will eventually fail and trigger the critical error "Cannot find DT!" with proper error handling.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:45:02.422Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-09T10:53:01.501Z
Learnt from: rpardini
Repo: armbian/build PR: 9192
File: lib/functions/compilation/uboot.sh:470-483
Timestamp: 2026-01-09T10:53:01.501Z
Learning: In the Armbian build system (lib/functions/compilation/uboot.sh), binwalk requires the `--run-as=root` flag when analyzing u-boot binaries because the build system runs as root. Binwalk detects root execution and refuses to proceed without explicit consent via this flag, even for analysis-only operations without extraction.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:39:08.046Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-17T05:40:15.131Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-10-17T05:40:15.131Z
Learning: In the Armbian build framework, wget should not be used. Use curl instead. Flag any usage of wget as an issue during code reviews.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-19T04:55:45.648Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-19T04:55:45.648Z
Learning: In Armbian build configurations, HTTP is preferred over HTTPS for APT repository URLs because: 1) APT package signing provides sufficient tamper protection through cryptographic verification, 2) HTTPS complicates package caching with tools like Squid, and 3) this is an established pattern across their repository configurations.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-11T22:00:13.411Z
Learnt from: rafayahmed317
Repo: armbian/build PR: 8484
File: config/kernel/linux-rk35xx-vendor.config:904-906
Timestamp: 2025-08-11T22:00:13.411Z
Learning: In the linux-rk35xx-vendor kernel, the LTE driver options (CONFIG_LTE, CONFIG_LTE_RM310, CONFIG_LTE_EM05) are defined as boolean in drivers/net/lte/Kconfig and cannot be built as modules - they must be either built-in (=y) or disabled.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-02T05:46:10.664Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-02T05:46:10.664Z
Learning: In the Armbian build system, the KERNEL_CONFIGURE=yes switch is deprecated. The recommended approach for kernel configuration is now to use the `kernel-config` build command, which provides a more structured way to configure kernel options.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-26T12:56:29.185Z
Learnt from: rpardini
Repo: armbian/build PR: 8820
File: config/sources/families/include/meson64_common.inc:51-53
Timestamp: 2025-10-26T12:56:29.185Z
Learning: In the Armbian build framework, scripts/config correctly handles kernel configuration option names both with and without the CONFIG_ prefix, so opts_m+=("CONFIG_RTL8822CS") and opts_m+=("RTL8822CS") are both valid and will work correctly.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-02T05:46:10.664Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-02T05:46:10.664Z
Learning: In the Armbian build system, the modern recommended approach for kernel configuration is to use the kernel-config command via "./compile.sh BOARD=boardname BRANCH=branchname kernel-config" instead of the deprecated KERNEL_CONFIGURE=yes flag. This provides a two-step workflow: configure using menuconfig, then build, with better transparency and control over configuration changes.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:49:27.188Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-k3-edge.config:97-99
Timestamp: 2025-09-27T21:49:27.188Z
Learning: make oldconfig preserves existing deprecated kernel options and only prompts for new configuration options, unlike make defconfig which would auto-correct by removing deprecated options. This explains why deprecated options like CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD might persist through the automated Armbian kernel configuration generation process.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-23T07:30:52.265Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-15T23:26:40.214Z
Learnt from: bryanbrattlof
Repo: armbian/build PR: 9081
File: config/boards/sk-am62-sip.conf:18-20
Timestamp: 2025-12-15T23:26:40.214Z
Learning: For TI K3 SoC boards with only 512MB of DDR (like SK-AM62-SIP), OP-TEE (BL32) and TFA must be placed at the bottom of DDR (e.g., BL32_BASE=0x80080000, CFG_TZDRAM_START=0x80080000) rather than the standard high-memory layout. This is necessary because U-Boot relocates itself to the highest DDR address (up to 2GB max) during bootup, which would overwrite OP-TEE/TFA if they were placed at the top of the 512MB DDR region. PRELOADED_BL33_BASE is typically set to 0x82000000 in this configuration.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-14T05:08:11.785Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8754
File: config/boards/bestv-r3300-l.csc:14-16
Timestamp: 2025-10-14T05:08:11.785Z
Learning: In the Armbian build system, BOOTBRANCH_BOARD is a valid framework variable used as a fallback when BOOTBRANCH is unset. The framework checks BOOTBRANCH_BOARD before applying the default bootloader branch value (see config/sources/common.conf). Board configuration files can use BOOTBRANCH_BOARD to specify the bootloader branch.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-12T23:09:56.813Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9058
File: config/sources/families/spacemit.conf:39-45
Timestamp: 2025-12-12T23:09:56.813Z
Learning: In Armbian build configs for vendor kernel sources, prefer the following branch naming conventions: use 'vendor' or 'vendor-rt' for stable vendor releases, and 'vendor-edge' for bleeding-edge/pre-release vendor versions. The 'edge' naming without the 'vendor-' prefix is reserved for mainline kernel branches. Apply this pattern to family config files under config/sources/families (e.g., spacemit.conf) to ensure consistent vendor kernel sourcing naming across the repository.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
🔇 Additional comments (9)
config/sources/families/nuvoton-ma35d1.conf (9)

10-25: LGTM - Basic configuration is well-documented.

The configuration properly sets up the MA35D1 family with clear comments explaining the rationale for LOCALVERSION="" (module compatibility) and KERNEL_BTF="no" (toolchain compatibility). The boot flow comment is helpful for understanding the complex chain.


51-55: Good use of EXTRA_BUILD_DEPS for host dependencies.

The function correctly uses EXTRA_BUILD_DEPS for OP-TEE build dependencies instead of directly calling apt-get, which aligns with the Armbian framework's dependency handling. The function naming convention add_host_dependencies__* is appropriate.


57-64: ATF target configuration is consistent.

The DEBUG=1 setting correctly matches the directory checks in atf_custom_postprocess() which prioritizes release over debug builds. The DDR DTB default for the 512MB IoT board is appropriate.


78-95: Vendor branch configuration follows Armbian conventions.

Using "vendor" branch naming for the Nuvoton-specific 5.10.y kernel aligns with Armbian's convention where "vendor" is reserved for non-mainline kernel branches. Based on learnings about Armbian branch naming conventions.


97-103: Placeholder functions are acceptable.

Empty family_tweaks() and family_tweaks_bsp() functions are valid; board-specific customizations can be implemented in the board configuration file or added here later as needed.


130-179: ATF postprocessing has good error handling.

The function properly validates required binaries (bl2.bin, bl31.bin) and handles both release and debug build directories. The fallback logic and error messages will help with debugging build issues.


344-459: Python header generation is well-structured.

The embedded Python script correctly implements the NuWriter-compatible header format with:

  • Proper magic number and CRC32 calculation
  • Two image descriptors for DTB and BL2
  • Offsets matching write_uboot_platform() and Yocto layout
  • Signature fields filled with 0xFF for non-secure boot

The 512-byte buffer with 200-byte actual output is intentional for working memory vs. final header size.


1-8: License and header are correct.

The SPDX license identifier and copyright header follow Armbian conventions.


107-123: No actionable changes required. The function correctly integrates with Armbian's kernel configuration pipeline. The merge_config.sh -m output is automatically processed by the framework's olddefconfig step that runs after all kernel config hooks complete, properly resolving any configuration dependencies without manual intervention.

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EvilOlaf commented Jan 9, 2026

Just a friendly warning: don't get lost in rabbits complains ;)

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@rpardini rpardini left a comment

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Nice. Some fixes required. I'll post more after you fix those... (ref hashing, how builds are fired off and when, etc).

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Actionable comments posted: 2

🤖 Fix all issues with AI agents
In @config/sources/families/nuvoton-ma35d1.conf:
- Around line 79-82: The comments around enable_extension
"nuvoton-clean-kernel-version" are contradictory; replace them with a single
clear sentence stating that the extension is disabled by default due to
packaging issues but may be required when using Nuvoton precompiled modules
(e.g., dcultrafb.ko, ma35d1-vc8000.ko which have vermagic "5.10.140"), and
optionally add a brief note instructing maintainers to uncomment
enable_extension "nuvoton-clean-kernel-version" when those precompiled modules
are needed.
🧹 Nitpick comments (1)
config/sources/families/nuvoton-ma35d1.conf (1)

323-438: Consider extracting Python script to separate file.

The embedded Python script for header creation is complex (115 lines) and could benefit from being extracted to a separate file (e.g., tools/create-ma35d1-header.py). This would improve:

  • Testability (script could be unit tested independently)
  • Maintainability (easier to modify and review)
  • Reusability (could be called from other contexts)

However, keeping it embedded ensures it's always in sync with the offsets and constants defined in this file, so this is an optional/nice-to-have improvement rather than a critical issue.

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📒 Files selected for processing (2)
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
🧰 Additional context used
🧠 Learnings (47)
📓 Common learnings
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub API (https://api.github.com/repos/armbian/build/pulls/{pr_number}/files) to get the complete picture of what files are being added or modified, especially for U-Boot patches that will be applied during the build process.
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-17T05:09:02.306Z
Learning: In the Armbian build system, kernel patches (e.g., in patch/kernel/archive/sunxi-6.18/patches.armbian/) contain device tree overlays and other code that have existed for years and are maintained/ported across kernel versions. When reviewing PRs that modify these patch files, focus on the actual changes being made (e.g., Makefile fixes, new additions) rather than reviewing the entire existing content within the patch as if it were new code. The patch file contents are existing, stable code unless explicitly modified in the PR diff.
Learnt from: rpardini
Repo: armbian/build PR: 8879
File: config/sources/families/uefi-x86.conf:0-0
Timestamp: 2025-11-06T15:36:04.682Z
Learning: As of PR #8879, the uefi-x86 family in the Armbian build system now includes kernel patches for the first time. The current and edge branches for uefi-x86 are specifically configured for Apple T2-based x86 machines, including T2-specific patches from the linux-t2 project and custom kernel configuration options for Apple hardware drivers.
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:76-86
Timestamp: 2025-03-31T22:20:48.475Z
Learning: For the Armbian build project, maintaining consistency with existing patches across U-Boot versions (such as between 2025.01 and 2025.04) is prioritized over refactoring individual patches for code improvements.
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.
📚 Learning: 2025-11-02T20:49:56.719Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8849
File: config/boards/radxa-e54c.csc:14-28
Timestamp: 2025-11-02T20:49:56.719Z
Learning: In Armbian board configuration files (config/boards/*.conf, *.csc, etc.), do not use kernel_config_set, kernel_config_set_m, kernel_config_set_y, or custom_kernel_config__* functions to modify kernel configuration. Kernel configuration is associated with LINUXFAMILY/BOARDFAMILY, not individual BOARD. Board-specific kernel modifications cause inconsistency in kernel packages published to the apt repository because boards within a family share the same kernel packages. Kernel configuration changes must be made in the appropriate kernel config file (e.g., config/kernel/linux-*-*.config) or in family configuration files (config/sources/families/*.conf, *.inc) instead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:40:52.109Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:40:52.109Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, when KERNELSOURCE is not explicitly declared in a case branch, the system falls back to a default KERNELSOURCE value, so missing KERNELSOURCE declarations are not critical issues.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-03T20:46:29.189Z
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:04.845Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-edge.config:80-82
Timestamp: 2025-09-27T21:50:04.845Z
Learning: In the Armbian build system, kernel configuration files are generated through this automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-17T04:12:33.125Z
Learnt from: pyavitz
Repo: armbian/build PR: 8388
File: config/boards/kickpik2b.conf:1-14
Timestamp: 2025-07-17T04:12:33.125Z
Learning: In the Armbian build system, board configuration files (*.conf) follow a project standard of not including shebang lines, even though they contain bash code and are sourced by the build system. This is an established Armbian convention that individual contributors are expected to follow, and changes to this standard would require broader project maintainer approval.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:49:55.796Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-current.config:78-80
Timestamp: 2025-09-27T21:49:55.796Z
Learning: In the Armbian build system, kernel configuration files are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:47:58.020Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-bcm2711-edge.config:859-861
Timestamp: 2025-09-27T21:47:58.020Z
Learning: In the Armbian build system, kernel configuration files in config/kernel/ are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:15.915Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sunxi64-current.config:94-94
Timestamp: 2025-09-27T21:50:15.915Z
Learning: When kernel config files are generated through Armbian's automated process (previous config → armbian-kernel.sh changes → make oldconfig → Armbian machinery processing), manual config file edits are not appropriate since they would be overwritten. Deprecated option handling should be implemented in the automated tooling instead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:42:09.086Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:42:09.086Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, KERNELSOURCE is explicitly declared when using unofficial or 3rd party kernel repositories (like the "dev" branch using https://github.com/apritzel/linux), but can be omitted when using the standard mainline kernel (like the "edge" branch) since it will fall back to the default mainline source.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-03T11:42:46.660Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:96-169
Timestamp: 2025-10-03T11:42:46.660Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), deletion of kernel config files does not need to be handled. The workflow intentionally only captures ACMR (added/copied/modified/renamed) changes and does not need to propagate deletions to the aggregator.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-30T04:13:16.457Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T04:13:16.457Z
Learning: Armbian kernel configuration files like linux-filogic-current.config are autogenerated overlays on top of arch defconfig. Comments added manually will be lost during future updates by maintainers, and explicit "CONFIG_OPTION is not set" statements aren't needed for mutually exclusive options since these are overlay configs that only specify changes from the base configuration.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-22T21:52:01.225Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-201
Timestamp: 2025-09-22T21:52:01.225Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the kernel_config_modifying_hashes array is not universally required for all kernel configuration functions - some functions like armbian_kernel_config__netkit() operate without it, and adding entries with '=m' would be incorrect when the actual result might be '=y' for options already built-in.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-27T15:53:30.629Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:805-825
Timestamp: 2025-07-27T15:53:30.629Z
Learning: In the Armbian build system, kernel configurations prioritize broad hardware compatibility over optimization concerns. Even when including numerous legacy/obsolete drivers causes technical issues like increased initramfs size and slower enumeration, the project philosophy is to "appease the masses" by ensuring maximum device compatibility rather than optimizing for specific use cases.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-25T18:37:00.330Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-21T04:12:02.439Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-07-21T04:12:02.439Z
Learning: In the Armbian build system, for recurring maintenance tasks like kernel version bumping, TODO comments should use generic version formats (e.g., "MAJOR.MINOR-rc1") rather than specific version numbers (e.g., "6.17-rc1") to avoid the need for frequent comment updates that would create unnecessary maintenance overhead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-11T06:16:10.236Z
Learnt from: SuperKali
Repo: armbian/build PR: 8609
File: config/boards/nanopi-r76s.conf:5-5
Timestamp: 2025-09-11T06:16:10.236Z
Learning: In Armbian board configuration files, WIP (Work In Progress) comments describe intended goals or planned features rather than current implementation state. For example, a comment like "WIP: current kernel" indicates that current kernel support is being worked toward, even if KERNEL_TARGET doesn't yet include "current".

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-07T18:21:41.085Z
Learnt from: rpardini
Repo: armbian/build PR: 9180
File: patch/kernel/archive/sm8250-6.18/0000.patching_config.yaml:4-8
Timestamp: 2026-01-07T18:21:41.085Z
Learning: In Armbian patch/kernel/archive/**/0000.patching_config.yaml files, the version metadata fields (name, branch, last-known-good-tag, kind, type) under the "info stuff" comment are not used by the patching scripts. When reviewing these files, do not suggest updating or fixing these metadata fields. Instead, suggest removing them entirely as they serve no functional purpose.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-11T20:56:20.303Z
Learnt from: glneo
Repo: armbian/build PR: 8913
File: config/sources/families/include/k3_common.inc:57-60
Timestamp: 2025-11-11T20:56:20.303Z
Learning: In config/sources/families/include/k3_common.inc, the OP-TEE build command at line 59 should be updated in a future PR to explicitly set CROSS_COMPILE64=aarch64-linux-gnu- and CROSS_COMPILE32=arm-linux-gnueabihf- instead of relying on OP-TEE's internal defaults, for better clarity and maintainability. User glneo agreed to address this in a separate PR.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-20T18:20:11.985Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8968
File: patch/u-boot/u-boot-sunxi/arm64-dts-sun50i-h6-orangepi.dtsi-Rollback-r_rsb-to-r_i2c.patch:36-36
Timestamp: 2025-11-20T18:20:11.985Z
Learning: The rewrite-patches tool (REWRITE_PATCHES=yes) in the Armbian build system can inadvertently introduce semantic changes when the u-boot/kernel git base revision differs from expected state. The tool applies patches, commits them, and re-exports them using git format-patch, which can cause the re-exported patch to reflect the base revision's state rather than preserving the original patch intent. This is particularly problematic for device tree changes like interrupt specifications. The tool currently lacks validation mechanisms to detect such semantic drift, and affected patches must be manually corrected after rewriting.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-23T10:01:41.310Z
Learnt from: amazingfate
Repo: armbian/build PR: 8419
File: lib/functions/host/prepare-host.sh:272-275
Timestamp: 2025-07-23T10:01:41.310Z
Learning: In the Armbian build system, the design philosophy is to fail fast when host dependencies are not met rather than gracefully skipping unsupported architectures. This ensures build environment consistency and prevents silent failures. Host dependency checks should be explicit and non-negotiable.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-18T23:40:55.905Z
Learnt from: rpardini
Repo: armbian/build PR: 9101
File: lib/functions/image/compress-checksum.sh:44-48
Timestamp: 2025-12-18T23:40:55.905Z
Learning: In the Armbian build framework, host dependencies are strictly controlled, ensuring that specific tools like `zstdmt` are guaranteed to be available in the build environment.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-22T00:45:26.182Z
Learnt from: djurny
Repo: armbian/build PR: 8315
File: lib/functions/rootfs/distro-agnostic.sh:54-68
Timestamp: 2025-06-22T00:45:26.182Z
Learning: In Armbian build system, external command dependencies like envsubst are handled by adding the required packages (e.g., gettext for envsubst) to host_dependencies in adaptative_prepare_host_dependencies function in lib/functions/host/prepare-host.sh, rather than checking command availability at runtime.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-30T06:48:09.091Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T06:48:09.091Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the user prefers flexible grep patterns over anchored ones for BTRFS configuration checks, but agrees to use quiet grep (-q) to avoid polluting build logs.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-16T13:40:07.649Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-10T22:05:40.490Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8913
File: config/sources/families/k3-beagle.conf:16-16
Timestamp: 2025-11-10T22:05:40.490Z
Learning: In the Armbian build system, kernel branches using non-mainline/vendor forks (like BeagleBoard's linux repository) should be named "vendor" or "vendor-rt" rather than "current" or "edge". The "current" and "edge" naming is reserved for mainline kernel branches. This affects both the case statement in family config files (e.g., `vendor | vendor-rt)` instead of `current | current-rt)`) and the corresponding KERNEL_TARGET declarations in board config files.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-24T04:46:22.901Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-10-24T04:46:22.901Z
Learning: In lib/functions/rootfs/rootfs-create.sh, the FIXME comment about mmdebstrap usage with --aptopt is a future note related to PR #8785, which hasn't been merged yet.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-12T19:28:38.491Z
Learnt from: Grippy98
Repo: armbian/build PR: 8622
File: config/sources/families/k3.conf:66-66
Timestamp: 2025-09-12T19:28:38.491Z
Learning: In the Armbian k3 family build system (config/sources/families/k3.conf), builds do not fail when TIBOOT3_BOOTCONFIG is unset, even though tiboot3.bin is still listed in UBOOT_TARGET_MAP. The gating mechanism in pre_config_uboot_target__build_first_stage function works as intended to conditionally build/copy tiboot3.bin only when TIBOOT3_BOOTCONFIG is defined.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:14:36.024Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:38-44
Timestamp: 2025-06-12T21:14:36.024Z
Learning: In config/bootscripts/boot-sunxi.cmd the unconditional "+1" increment in func_align_addr_next (when align_overlap_oboe_avoidance="on") is intentional. It compensates for a known off-by-one error in U-Boot where the end address is calculated as start+size instead of start+size-1, so the extra page prevents overlap. This behavior should not be “optimized away”.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-05-07T20:49:40.969Z
Learnt from: djurny
Repo: armbian/build PR: 8166
File: config/bootscripts/boot-mvebu.cmd:38-50
Timestamp: 2025-05-07T20:49:40.969Z
Learning: The 4KB (0x1000) boundary used for device tree size calculations in U-Boot scripts is specific to how the `fdt resize` command works internally and should remain hardcoded rather than being tied to adjustable alignment variables.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-14T06:32:29.806Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-04T23:45:38.860Z
Learnt from: djurny
Repo: armbian/build PR: 8272
File: config/bootscripts/boot-mvebu.cmd:182-186
Timestamp: 2025-06-04T23:45:38.860Z
Learning: In config/bootscripts/boot-mvebu.cmd, the `fdtfile` variable is mandatory for booting and is pre-set by U-Boot, but can be overridden via armbianEnv.txt. If `fdtfile` is empty, the subsequent device tree file search logic will eventually fail and trigger the critical error "Cannot find DT!" with proper error handling.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:45:02.422Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-09T10:53:08.974Z
Learnt from: rpardini
Repo: armbian/build PR: 9192
File: lib/functions/compilation/uboot.sh:470-483
Timestamp: 2026-01-09T10:53:08.974Z
Learning: In the Armbian build system (lib/functions/compilation/uboot.sh), binwalk requires the `--run-as=root` flag when analyzing u-boot binaries because the build system runs as root. Binwalk detects root execution and refuses to proceed without explicit consent via this flag, even for analysis-only operations without extraction.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:39:08.046Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-17T05:40:15.131Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-10-17T05:40:15.131Z
Learning: In the Armbian build framework, wget should not be used. Use curl instead. Flag any usage of wget as an issue during code reviews.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-11T22:00:13.411Z
Learnt from: rafayahmed317
Repo: armbian/build PR: 8484
File: config/kernel/linux-rk35xx-vendor.config:904-906
Timestamp: 2025-08-11T22:00:13.411Z
Learning: In the linux-rk35xx-vendor kernel, the LTE driver options (CONFIG_LTE, CONFIG_LTE_RM310, CONFIG_LTE_EM05) are defined as boolean in drivers/net/lte/Kconfig and cannot be built as modules - they must be either built-in (=y) or disabled.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-02T05:46:10.664Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-02T05:46:10.664Z
Learning: In the Armbian build system, the KERNEL_CONFIGURE=yes switch is deprecated. The recommended approach for kernel configuration is now to use the `kernel-config` build command, which provides a more structured way to configure kernel options.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-26T12:56:29.185Z
Learnt from: rpardini
Repo: armbian/build PR: 8820
File: config/sources/families/include/meson64_common.inc:51-53
Timestamp: 2025-10-26T12:56:29.185Z
Learning: In the Armbian build framework, scripts/config correctly handles kernel configuration option names both with and without the CONFIG_ prefix, so opts_m+=("CONFIG_RTL8822CS") and opts_m+=("RTL8822CS") are both valid and will work correctly.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-02T05:46:10.664Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-02T05:46:10.664Z
Learning: In the Armbian build system, the modern recommended approach for kernel configuration is to use the kernel-config command via "./compile.sh BOARD=boardname BRANCH=branchname kernel-config" instead of the deprecated KERNEL_CONFIGURE=yes flag. This provides a two-step workflow: configure using menuconfig, then build, with better transparency and control over configuration changes.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:49:27.188Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-k3-edge.config:97-99
Timestamp: 2025-09-27T21:49:27.188Z
Learning: make oldconfig preserves existing deprecated kernel options and only prompts for new configuration options, unlike make defconfig which would auto-correct by removing deprecated options. This explains why deprecated options like CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD might persist through the automated Armbian kernel configuration generation process.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-28T01:49:34.661Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9136
File: lib/functions/compilation/armbian-kernel.sh:529-537
Timestamp: 2025-12-28T01:49:34.661Z
Learning: In lib/functions/compilation/armbian-kernel.sh's opts_m handling, checking .config (kernel defconfig) is problematic because savedefconfig elides options matching defconfig, making it impossible to distinguish overlay silence from defconfig agreement. The correct approach is to check only kernel_config_source_filename (the overlay) for explicit =y, otherwise default to =m, letting savedefconfig handle deduplication with defconfig automatically.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-04T17:59:19.369Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:217-220
Timestamp: 2025-10-04T17:59:19.369Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), the workflow is designed to rewrite existing kernel configs only. New/untracked files can be safely ignored, so using `git diff --quiet` (which ignores untracked files) is the correct approach for detecting changes rather than `git status --porcelain`.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-15T23:26:40.214Z
Learnt from: bryanbrattlof
Repo: armbian/build PR: 9081
File: config/boards/sk-am62-sip.conf:18-20
Timestamp: 2025-12-15T23:26:40.214Z
Learning: For TI K3 SoC boards with only 512MB of DDR (like SK-AM62-SIP), OP-TEE (BL32) and TFA must be placed at the bottom of DDR (e.g., BL32_BASE=0x80080000, CFG_TZDRAM_START=0x80080000) rather than the standard high-memory layout. This is necessary because U-Boot relocates itself to the highest DDR address (up to 2GB max) during bootup, which would overwrite OP-TEE/TFA if they were placed at the top of the 512MB DDR region. PRELOADED_BL33_BASE is typically set to 0x82000000 in this configuration.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-23T07:30:52.265Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-14T05:08:11.785Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8754
File: config/boards/bestv-r3300-l.csc:14-16
Timestamp: 2025-10-14T05:08:11.785Z
Learning: In the Armbian build system, BOOTBRANCH_BOARD is a valid framework variable used as a fallback when BOOTBRANCH is unset. The framework checks BOOTBRANCH_BOARD before applying the default bootloader branch value (see config/sources/common.conf). Board configuration files can use BOOTBRANCH_BOARD to specify the bootloader branch.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-12T23:09:56.813Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9058
File: config/sources/families/spacemit.conf:39-45
Timestamp: 2025-12-12T23:09:56.813Z
Learning: In Armbian build configs for vendor kernel sources, prefer the following branch naming conventions: use 'vendor' or 'vendor-rt' for stable vendor releases, and 'vendor-edge' for bleeding-edge/pre-release vendor versions. The 'edge' naming without the 'vendor-' prefix is reserved for mainline kernel branches. Apply this pattern to family config files under config/sources/families (e.g., spacemit.conf) to ensure consistent vendor kernel sourcing naming across the repository.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
🔇 Additional comments (1)
config/sources/families/nuvoton-ma35d1.conf (1)

467-481: LGTM: dd commands follow best practices.

The write commands correctly use status=none and conv=notrunc flags, and the offsets are well-documented with matching comments. The conditional write for the optional DTB file is also appropriate.

@TuAFBogey TuAFBogey requested a review from rpardini January 10, 2026 20:24
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@armbian armbian deleted a comment from github-actions bot Jan 11, 2026
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Nice job. Two more for the win.

Nit: consistency for declare -g for the vars at the top of the family file.

}

# Compile OP-TEE for MA35D1
compile_optee_ma35d1() {
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Move this function declaration inside the uboot_custom_postprocess function (at the beginning). That way, changes to it will cause a hash change correctly. You don't need to inline it, just move the decl.

local src_dir="$1"
local target_dev="$2"

display_alert "Writing MA35D1 bootloader" "${target_dev}" "info"
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When write_uboot_platform() is called board-side (via armbian-install or such), display_alert and friends is not available, unfortunately. You can either remove it, or test for it's existence (see rockchip64_common.inc) before invoking it.

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Builds pretty good. https://paste.next.armbian.com/ajazutunow 👍

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Another nit: use function for all functions.

…compile_optee inside hook, use echo in write_uboot_platform
@TuAFBogey TuAFBogey force-pushed the add-nuvoton-ma35d1-support branch from 096129d to bfcecbc Compare January 11, 2026 18:54
@TuAFBogey TuAFBogey requested a review from rpardini January 11, 2026 18:55
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🚫 Missing required board assets

This PR adds new board configuration(s). Required assets must already exist in github/armbian/armbian.github.io.
They are required by Armbian Imager to ensure all boards are displayed with proper images.

  • Board images: board-images/<board>.png (1920x1080 px transparent)
  • Vendor logos: board-vendor-logos/<vendor>-logo.png (512x512 px transparent)

Missing items

  • Board image missing for numaker-iot-ma35d16f90

    • Expected: board-images/numaker-iot-ma35d16f90.png
    • Fix: add the file to armbian/armbian.github.io (folder board-images/)
  • Vendor logo missing for vendor nuvoton (used by board numaker-iot-ma35d16f90)

    • Expected: board-vendor-logos/nuvoton-logo.png
    • Fix: add the file to armbian/armbian.github.io (folder board-vendor-logos/)
    • Naming rules: lowercase, dashes (e.g. kobol-logo.png, not Kobol_logo.png)

Once the missing files are added (or a PR is opened in armbian/armbian.github.io), re-run this check.

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Actionable comments posted: 0

🧹 Nitpick comments (1)
config/sources/families/nuvoton-ma35d1.conf (1)

177-242: Python heredoc for boot header generation - verify indentation.

The inline Python script generates the NuWriter-compatible boot header. The use of <<- 'HEADER_SCRIPT' with tab stripping requires consistent tab indentation. Ensure the Python code uses tabs (not spaces) for proper heredoc handling, or consider extracting this to a separate Python script in lib/ for maintainability.

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📥 Commits

Reviewing files that changed from the base of the PR and between 096129d and bfcecbc.

📒 Files selected for processing (6)
  • config/boards/numaker-iot-ma35d16f90.csc
  • config/bootenv/nuvoton-ma35d1.txt
  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
  • config/sources/families/nuvoton-ma35d1.conf
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
🚧 Files skipped from review as they are similar to previous changes (3)
  • patch/u-boot/u-boot-nuvoton-ma35d1/0001-Set-bootcmd-for-Armbian.patch
  • config/boards/numaker-iot-ma35d16f90.csc
  • config/bootenv/nuvoton-ma35d1.txt
🧰 Additional context used
🧠 Learnings (70)
📓 Common learnings
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub API (https://api.github.com/repos/armbian/build/pulls/{pr_number}/files) to get the complete picture of what files are being added or modified, especially for U-Boot patches that will be applied during the build process.
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.
Learnt from: rpardini
Repo: armbian/build PR: 8879
File: config/sources/families/uefi-x86.conf:0-0
Timestamp: 2025-11-06T15:36:04.682Z
Learning: As of PR #8879, the uefi-x86 family in the Armbian build system now includes kernel patches for the first time. The current and edge branches for uefi-x86 are specifically configured for Apple T2-based x86 machines, including T2-specific patches from the linux-t2 project and custom kernel configuration options for Apple hardware drivers.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files (regardless of file extension), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features. The file extensions indicate board support status: .conf (standard support), .csc (community supported), .eos (end of support), .tvb (tvbox), .wip (work in progress).
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:76-86
Timestamp: 2025-03-31T22:20:48.475Z
Learning: For the Armbian build project, maintaining consistency with existing patches across U-Boot versions (such as between 2025.01 and 2025.04) is prioritized over refactoring individual patches for code improvements.
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.
Learnt from: HackingGate
Repo: armbian/build PR: 8665
File: config/boards/photonicat2.csc:4-4
Timestamp: 2025-10-26T10:41:35.118Z
Learning: In the Armbian build system, rk3576 boards consistently use BOARDFAMILY="rk35xx" for both vendor and edge kernel targets. The rk35xx family configuration sources rockchip64_common.inc, which provides edge and current kernel branch definitions, making these branches available even though they're not defined directly in rk35xx.conf.
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:64-70
Timestamp: 2025-09-14T06:29:18.958Z
Learning: In the Armbian build system, vendor branch configurations in family files are designed to be shared across multiple SoCs within the same family that use the same vendor kernel tree. For example, rk35xx and rockchip-rk3588 families both use identical vendor branch settings (same KERNELSOURCE, KERNELBRANCH, and KERNELPATCHDIR), demonstrating that vendor branches are intentionally generic rather than SoC-specific.
📚 Learning: 2025-06-04T23:45:38.860Z
Learnt from: djurny
Repo: armbian/build PR: 8272
File: config/bootscripts/boot-mvebu.cmd:182-186
Timestamp: 2025-06-04T23:45:38.860Z
Learning: In config/bootscripts/boot-mvebu.cmd, the `fdtfile` variable is mandatory for booting and is pre-set by U-Boot, but can be overridden via armbianEnv.txt. If `fdtfile` is empty, the subsequent device tree file search logic will eventually fail and trigger the critical error "Cannot find DT!" with proper error handling.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:45:02.422Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:14:36.024Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:38-44
Timestamp: 2025-06-12T21:14:36.024Z
Learning: In config/bootscripts/boot-sunxi.cmd the unconditional "+1" increment in func_align_addr_next (when align_overlap_oboe_avoidance="on") is intentional. It compensates for a known off-by-one error in U-Boot where the end address is calculated as start+size instead of start+size-1, so the extra page prevents overlap. This behavior should not be “optimized away”.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:39:08.046Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:03:39.686Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:148-161
Timestamp: 2025-06-12T21:03:39.686Z
Learning: In Armbian U-Boot bootscripts, the `${cpu}` environment variable is always pre-set by U-Boot (or defaults to a valid value), so additional guards against it being unset are unnecessary.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-14T06:32:29.806Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-20T18:20:11.985Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8968
File: patch/u-boot/u-boot-sunxi/arm64-dts-sun50i-h6-orangepi.dtsi-Rollback-r_rsb-to-r_i2c.patch:36-36
Timestamp: 2025-11-20T18:20:11.985Z
Learning: The rewrite-patches tool (REWRITE_PATCHES=yes) in the Armbian build system can inadvertently introduce semantic changes when the u-boot/kernel git base revision differs from expected state. The tool applies patches, commits them, and re-exports them using git format-patch, which can cause the re-exported patch to reflect the base revision's state rather than preserving the original patch intent. This is particularly problematic for device tree changes like interrupt specifications. The tool currently lacks validation mechanisms to detect such semantic drift, and affected patches must be manually corrected after rewriting.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-25T03:51:50.830Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-19T13:56:45.124Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-03-31T22:20:48.475Z
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:76-86
Timestamp: 2025-03-31T22:20:48.475Z
Learning: For the Armbian build project, maintaining consistency with existing patches across U-Boot versions (such as between 2025.01 and 2025.04) is prioritized over refactoring individual patches for code improvements.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-28T01:49:34.661Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9136
File: lib/functions/compilation/armbian-kernel.sh:529-537
Timestamp: 2025-12-28T01:49:34.661Z
Learning: In lib/functions/compilation/armbian-kernel.sh's opts_m handling, checking .config (kernel defconfig) is problematic because savedefconfig elides options matching defconfig, making it impossible to distinguish overlay silence from defconfig agreement. The correct approach is to check only kernel_config_source_filename (the overlay) for explicit =y, otherwise default to =m, letting savedefconfig handle deduplication with defconfig automatically.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-17T05:09:02.306Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-17T05:09:02.306Z
Learning: In the Armbian build system, kernel patches (e.g., in patch/kernel/archive/sunxi-6.18/patches.armbian/) contain device tree overlays and other code that have existed for years and are maintained/ported across kernel versions. When reviewing PRs that modify these patch files, focus on the actual changes being made (e.g., Makefile fixes, new additions) rather than reviewing the entire existing content within the patch as if it were new code. The patch file contents are existing, stable code unless explicitly modified in the PR diff.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:08:11.318Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:13-23
Timestamp: 2025-06-12T21:08:11.318Z
Learning: In config/bootscripts/boot-sunxi.cmd the variable name `align_overlap_oboe_avoidance` intentionally uses the acronym “OBOE” (Off-By-One Error); it is not a typo and should not be renamed.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-05-07T20:49:40.969Z
Learnt from: djurny
Repo: armbian/build PR: 8166
File: config/bootscripts/boot-mvebu.cmd:38-50
Timestamp: 2025-05-07T20:49:40.969Z
Learning: The 4KB (0x1000) boundary used for device tree size calculations in U-Boot scripts is specific to how the `fdt resize` command works internally and should remain hardcoded rather than being tied to adjustable alignment variables.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-12T15:46:16.772Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/bootscripts/boot-rk3506.cmd:46-47
Timestamp: 2025-09-12T15:46:16.772Z
Learning: In Armbian boot scripts, uInitrd is always packaged by the build system, so unconditional loading of uInitrd without existence checks is acceptable and won't cause boot failures.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-09-01T06:11:43.476Z
Learnt from: wei633
Repo: armbian/build PR: 8557
File: config/bootscripts/boot-xpressreal-t3.cmd:0-0
Timestamp: 2025-09-01T06:11:43.476Z
Learning: In Armbian boot scripts without initramfs support, UUID= and LABEL= style device paths cannot be used for rootdev as they require initramfs to resolve during boot. Only direct device paths (/dev/mmcblkXpY) or PARTUUID= references (which U-Boot can resolve) will work.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-09-12T21:44:09.061Z
Learnt from: Grippy98
Repo: armbian/build PR: 8624
File: config/boards/sk-am62p.conf:8-8
Timestamp: 2025-09-12T21:44:09.061Z
Learning: For TI K3 family boards in Armbian, BOOT_FDT_FILE uses .dts extension (not .dtb) as the standard convention. The build system handles this correctly by automatically compiling .dts to .dtb during kernel build and using the BOOT_FDT_FILE value directly in bootloader configurations.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
📚 Learning: 2025-07-23T07:30:52.265Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-17T04:12:33.125Z
Learnt from: pyavitz
Repo: armbian/build PR: 8388
File: config/boards/kickpik2b.conf:1-14
Timestamp: 2025-07-17T04:12:33.125Z
Learning: In the Armbian build system, board configuration files (*.conf) follow a project standard of not including shebang lines, even though they contain bash code and are sourced by the build system. This is an established Armbian convention that individual contributors are expected to follow, and changes to this standard would require broader project maintainer approval.

Applied to files:

  • config/bootscripts/boot-nuvoton-ma35d1.cmd
  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-02T20:49:56.719Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8849
File: config/boards/radxa-e54c.csc:14-28
Timestamp: 2025-11-02T20:49:56.719Z
Learning: In Armbian board configuration files (config/boards/*.conf, *.csc, etc.), do not use kernel_config_set, kernel_config_set_m, kernel_config_set_y, or custom_kernel_config__* functions to modify kernel configuration. Kernel configuration is associated with LINUXFAMILY/BOARDFAMILY, not individual BOARD. Board-specific kernel modifications cause inconsistency in kernel packages published to the apt repository because boards within a family share the same kernel packages. Kernel configuration changes must be made in the appropriate kernel config file (e.g., config/kernel/linux-*-*.config) or in family configuration files (config/sources/families/*.conf, *.inc) instead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2026-01-03T20:46:29.189Z
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-06-25T03:40:52.109Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:40:52.109Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, when KERNELSOURCE is not explicitly declared in a case branch, the system falls back to a default KERNELSOURCE value, so missing KERNELSOURCE declarations are not critical issues.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:42:09.086Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:42:09.086Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, KERNELSOURCE is explicitly declared when using unofficial or 3rd party kernel repositories (like the "dev" branch using https://github.com/apritzel/linux), but can be omitted when using the standard mainline kernel (like the "edge" branch) since it will fall back to the default mainline source.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:04.845Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-edge.config:80-82
Timestamp: 2025-09-27T21:50:04.845Z
Learning: In the Armbian build system, kernel configuration files are generated through this automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-27T21:47:58.020Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-bcm2711-edge.config:859-861
Timestamp: 2025-09-27T21:47:58.020Z
Learning: In the Armbian build system, kernel configuration files in config/kernel/ are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-14T06:29:18.958Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:64-70
Timestamp: 2025-09-14T06:29:18.958Z
Learning: In the Armbian build system, vendor branch configurations in family files are designed to be shared across multiple SoCs within the same family that use the same vendor kernel tree. For example, rk35xx and rockchip-rk3588 families both use identical vendor branch settings (same KERNELSOURCE, KERNELBRANCH, and KERNELPATCHDIR), demonstrating that vendor branches are intentionally generic rather than SoC-specific.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-27T21:49:55.796Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-current.config:78-80
Timestamp: 2025-09-27T21:49:55.796Z
Learning: In the Armbian build system, kernel configuration files are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-12T19:28:38.491Z
Learnt from: Grippy98
Repo: armbian/build PR: 8622
File: config/sources/families/k3.conf:66-66
Timestamp: 2025-09-12T19:28:38.491Z
Learning: In the Armbian k3 family build system (config/sources/families/k3.conf), builds do not fail when TIBOOT3_BOOTCONFIG is unset, even though tiboot3.bin is still listed in UBOOT_TARGET_MAP. The gating mechanism in pre_config_uboot_target__build_first_stage function works as intended to conditionally build/copy tiboot3.bin only when TIBOOT3_BOOTCONFIG is defined.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:15.915Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sunxi64-current.config:94-94
Timestamp: 2025-09-27T21:50:15.915Z
Learning: When kernel config files are generated through Armbian's automated process (previous config → armbian-kernel.sh changes → make oldconfig → Armbian machinery processing), manual config file edits are not appropriate since they would be overwritten. Deprecated option handling should be implemented in the automated tooling instead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-08-30T04:13:16.457Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T04:13:16.457Z
Learning: Armbian kernel configuration files like linux-filogic-current.config are autogenerated overlays on top of arch defconfig. Comments added manually will be lost during future updates by maintainers, and explicit "CONFIG_OPTION is not set" statements aren't needed for mutually exclusive options since these are overlay configs that only specify changes from the base configuration.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-22T21:52:01.225Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-201
Timestamp: 2025-09-22T21:52:01.225Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the kernel_config_modifying_hashes array is not universally required for all kernel configuration functions - some functions like armbian_kernel_config__netkit() operate without it, and adding entries with '=m' would be incorrect when the actual result might be '=y' for options already built-in.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-27T15:53:30.629Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:805-825
Timestamp: 2025-07-27T15:53:30.629Z
Learning: In the Armbian build system, kernel configurations prioritize broad hardware compatibility over optimization concerns. Even when including numerous legacy/obsolete drivers causes technical issues like increased initramfs size and slower enumeration, the project philosophy is to "appease the masses" by ensuring maximum device compatibility rather than optimizing for specific use cases.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-10-03T11:42:46.660Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:96-169
Timestamp: 2025-10-03T11:42:46.660Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), deletion of kernel config files does not need to be handled. The workflow intentionally only captures ACMR (added/copied/modified/renamed) changes and does not need to propagate deletions to the aggregator.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-25T18:37:00.330Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-21T04:12:02.439Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-07-21T04:12:02.439Z
Learning: In the Armbian build system, for recurring maintenance tasks like kernel version bumping, TODO comments should use generic version formats (e.g., "MAJOR.MINOR-rc1") rather than specific version numbers (e.g., "6.17-rc1") to avoid the need for frequent comment updates that would create unnecessary maintenance overhead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-11T06:16:10.236Z
Learnt from: SuperKali
Repo: armbian/build PR: 8609
File: config/boards/nanopi-r76s.conf:5-5
Timestamp: 2025-09-11T06:16:10.236Z
Learning: In Armbian board configuration files, WIP (Work In Progress) comments describe intended goals or planned features rather than current implementation state. For example, a comment like "WIP: current kernel" indicates that current kernel support is being worked toward, even if KERNEL_TARGET doesn't yet include "current".

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-07T18:21:41.085Z
Learnt from: rpardini
Repo: armbian/build PR: 9180
File: patch/kernel/archive/sm8250-6.18/0000.patching_config.yaml:4-8
Timestamp: 2026-01-07T18:21:41.085Z
Learning: In Armbian patch/kernel/archive/**/0000.patching_config.yaml files, the version metadata fields (name, branch, last-known-good-tag, kind, type) under the "info stuff" comment are not used by the patching scripts. When reviewing these files, do not suggest updating or fixing these metadata fields. Instead, suggest removing them entirely as they serve no functional purpose.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-11T20:56:20.303Z
Learnt from: glneo
Repo: armbian/build PR: 8913
File: config/sources/families/include/k3_common.inc:57-60
Timestamp: 2025-11-11T20:56:20.303Z
Learning: In config/sources/families/include/k3_common.inc, the OP-TEE build command at line 59 should be updated in a future PR to explicitly set CROSS_COMPILE64=aarch64-linux-gnu- and CROSS_COMPILE32=arm-linux-gnueabihf- instead of relying on OP-TEE's internal defaults, for better clarity and maintainability. User glneo agreed to address this in a separate PR.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-23T10:01:41.310Z
Learnt from: amazingfate
Repo: armbian/build PR: 8419
File: lib/functions/host/prepare-host.sh:272-275
Timestamp: 2025-07-23T10:01:41.310Z
Learning: In the Armbian build system, the design philosophy is to fail fast when host dependencies are not met rather than gracefully skipping unsupported architectures. This ensures build environment consistency and prevents silent failures. Host dependency checks should be explicit and non-negotiable.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-18T23:40:55.905Z
Learnt from: rpardini
Repo: armbian/build PR: 9101
File: lib/functions/image/compress-checksum.sh:44-48
Timestamp: 2025-12-18T23:40:55.905Z
Learning: In the Armbian build framework, host dependencies are strictly controlled, ensuring that specific tools like `zstdmt` are guaranteed to be available in the build environment.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-16T13:40:07.649Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-30T06:48:09.091Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T06:48:09.091Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the user prefers flexible grep patterns over anchored ones for BTRFS configuration checks, but agrees to use quiet grep (-q) to avoid polluting build logs.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-22T00:45:26.182Z
Learnt from: djurny
Repo: armbian/build PR: 8315
File: lib/functions/rootfs/distro-agnostic.sh:54-68
Timestamp: 2025-06-22T00:45:26.182Z
Learning: In Armbian build system, external command dependencies like envsubst are handled by adding the required packages (e.g., gettext for envsubst) to host_dependencies in adaptative_prepare_host_dependencies function in lib/functions/host/prepare-host.sh, rather than checking command availability at runtime.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-24T04:46:22.901Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-10-24T04:46:22.901Z
Learning: In lib/functions/rootfs/rootfs-create.sh, the FIXME comment about mmdebstrap usage with --aptopt is a future note related to PR #8785, which hasn't been merged yet.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-10T22:05:40.490Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8913
File: config/sources/families/k3-beagle.conf:16-16
Timestamp: 2025-11-10T22:05:40.490Z
Learning: In the Armbian build system, kernel branches using non-mainline/vendor forks (like BeagleBoard's linux repository) should be named "vendor" or "vendor-rt" rather than "current" or "edge". The "current" and "edge" naming is reserved for mainline kernel branches. This affects both the case statement in family config files (e.g., `vendor | vendor-rt)` instead of `current | current-rt)`) and the corresponding KERNEL_TARGET declarations in board config files.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-03-31T22:20:41.849Z
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:73-75
Timestamp: 2025-03-31T22:20:41.849Z
Learning: When porting patches between U-Boot versions (like from 2025.01 to 2025.04), rpardini prefers to maintain patches as-is rather than introducing refactoring changes, even when potential improvements are identified. This approach prioritizes consistency and reduces the risk of introducing new issues.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-17T05:40:15.131Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-10-17T05:40:15.131Z
Learning: In the Armbian build framework, wget should not be used. Use curl instead. Flag any usage of wget as an issue during code reviews.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-11T22:00:13.411Z
Learnt from: rafayahmed317
Repo: armbian/build PR: 8484
File: config/kernel/linux-rk35xx-vendor.config:904-906
Timestamp: 2025-08-11T22:00:13.411Z
Learning: In the linux-rk35xx-vendor kernel, the LTE driver options (CONFIG_LTE, CONFIG_LTE_RM310, CONFIG_LTE_EM05) are defined as boolean in drivers/net/lte/Kconfig and cannot be built as modules - they must be either built-in (=y) or disabled.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-02T05:46:10.664Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-02T05:46:10.664Z
Learning: In the Armbian build system, the KERNEL_CONFIGURE=yes switch is deprecated. The recommended approach for kernel configuration is now to use the `kernel-config` build command, which provides a more structured way to configure kernel options.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-26T12:56:29.185Z
Learnt from: rpardini
Repo: armbian/build PR: 8820
File: config/sources/families/include/meson64_common.inc:51-53
Timestamp: 2025-10-26T12:56:29.185Z
Learning: In the Armbian build framework, scripts/config correctly handles kernel configuration option names both with and without the CONFIG_ prefix, so opts_m+=("CONFIG_RTL8822CS") and opts_m+=("RTL8822CS") are both valid and will work correctly.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-02T05:46:10.664Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-02T05:46:10.664Z
Learning: In the Armbian build system, the modern recommended approach for kernel configuration is to use the kernel-config command via "./compile.sh BOARD=boardname BRANCH=branchname kernel-config" instead of the deprecated KERNEL_CONFIGURE=yes flag. This provides a two-step workflow: configure using menuconfig, then build, with better transparency and control over configuration changes.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:49:27.188Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-k3-edge.config:97-99
Timestamp: 2025-09-27T21:49:27.188Z
Learning: make oldconfig preserves existing deprecated kernel options and only prompts for new configuration options, unlike make defconfig which would auto-correct by removing deprecated options. This explains why deprecated options like CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD might persist through the automated Armbian kernel configuration generation process.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-04T17:59:19.369Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:217-220
Timestamp: 2025-10-04T17:59:19.369Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), the workflow is designed to rewrite existing kernel configs only. New/untracked files can be safely ignored, so using `git diff --quiet` (which ignores untracked files) is the correct approach for detecting changes rather than `git status --porcelain`.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-22T22:08:54.273Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-09-22T22:08:54.273Z
Learning: When extracting comments from Linux Kconfig files, def_bool and def_tristate entries use their parameter as a dependency/default condition, not as a feature description. Comments should be generated differently for these entry types to avoid misleading inline documentation.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-18T03:36:17.862Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files (regardless of file extension), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features. The file extensions indicate board support status: .conf (standard support), .csc (community supported), .eos (end of support), .tvb (tvbox), .wip (work in progress).

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-25T03:51:50.830Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub API (https://api.github.com/repos/armbian/build/pulls/{pr_number}/files) to get the complete picture of what files are being added or modified, especially for U-Boot patches that will be applied during the build process.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-24T10:08:40.313Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8328
File: lib/functions/compilation/patch/drivers_network.sh:542-545
Timestamp: 2025-06-24T10:08:40.313Z
Learning: In the Armbian build system, when a PR removes build support for a specific kernel version, version check issues for that removed version become practically irrelevant even if they appear incorrect in isolation. Context about which kernel versions are being deprecated/removed is important for understanding the impact of version-related code changes.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-03-31T12:57:13.880Z
Learnt from: libiunc
Repo: armbian/build PR: 8033
File: config/kernel/linux-starfive2-vendor.config:43-43
Timestamp: 2025-03-31T12:57:13.880Z
Learning: For StarFive2 platform kernel configurations, maintain alignment with vendor-provided configurations rather than modifying security settings like SECCOMP. This ensures hardware compatibility as intended by the manufacturer.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-09-07T17:39:32.272Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8586
File: config/boards/nanopi-r76s.conf:15-21
Timestamp: 2025-09-07T17:39:32.272Z
Learning: In the Armbian build system, the variables $BOARD and $SDCARD are always set by the build framework, so guard checks for these variables are unnecessary in board configuration files and hook functions.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-14T05:08:11.785Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8754
File: config/boards/bestv-r3300-l.csc:14-16
Timestamp: 2025-10-14T05:08:11.785Z
Learning: In the Armbian build system, BOOTBRANCH_BOARD is a valid framework variable used as a fallback when BOOTBRANCH is unset. The framework checks BOOTBRANCH_BOARD before applying the default bootloader branch value (see config/sources/common.conf). Board configuration files can use BOOTBRANCH_BOARD to specify the bootloader branch.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-13T14:50:44.662Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8925
File: lib/functions/host/docker.sh:141-141
Timestamp: 2025-11-13T14:50:44.662Z
Learning: In the Armbian build system, certain boards have U-Boot that doesn't build correctly on ubuntu:noble but works on ubuntu:jammy. For these boards, DOCKER_ARMBIAN_BASE_IMAGE can be set to "ubuntu:jammy" via an extension file loaded before docker_cli_prepare() runs, allowing legacy toolchains to work while the community works on proper fixes with limited resources.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-15T23:26:40.214Z
Learnt from: bryanbrattlof
Repo: armbian/build PR: 9081
File: config/boards/sk-am62-sip.conf:18-20
Timestamp: 2025-12-15T23:26:40.214Z
Learning: For TI K3 SoC boards with only 512MB of DDR (like SK-AM62-SIP), OP-TEE (BL32) and TFA must be placed at the bottom of DDR (e.g., BL32_BASE=0x80080000, CFG_TZDRAM_START=0x80080000) rather than the standard high-memory layout. This is necessary because U-Boot relocates itself to the highest DDR address (up to 2GB max) during bootup, which would overwrite OP-TEE/TFA if they were placed at the top of the 512MB DDR region. PRELOADED_BL33_BASE is typically set to 0x82000000 in this configuration.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-12T23:09:56.813Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9058
File: config/sources/families/spacemit.conf:39-45
Timestamp: 2025-12-12T23:09:56.813Z
Learning: In Armbian build configs for vendor kernel sources, prefer the following branch naming conventions: use 'vendor' or 'vendor-rt' for stable vendor releases, and 'vendor-edge' for bleeding-edge/pre-release vendor versions. The 'edge' naming without the 'vendor-' prefix is reserved for mainline kernel branches. Apply this pattern to family config files under config/sources/families (e.g., spacemit.conf) to ensure consistent vendor kernel sourcing naming across the repository.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-22T07:56:19.424Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8789
File: config/kernel/linux-sunxi64-edge.config:839-839
Timestamp: 2025-10-22T07:56:19.424Z
Learning: In Linux kernel configuration, some `=y` (builtin) options are infrastructure or feature flags that enable subsystems or features for modular drivers, rather than directly compiling code into the kernel. For example, in Armbian wireless configs, options like CONFIG_SPARD_WLAN_SUPPORT=y, CONFIG_SC23XX=y, CONFIG_WCN_BSP_DRIVER_BUILDIN=y, CONFIG_UNISOC_WIFI_PS=y are module infrastructure/feature enablers, while the actual drivers (CONFIG_WLAN_UWE5621=m, CONFIG_WLAN_UWE5622=m) remain as loadable modules. These infrastructure options don't cause kernel bloat.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-27T13:03:53.146Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:2664-2671
Timestamp: 2025-07-27T13:03:53.146Z
Learning: In the Armbian build system's kernel configuration, when CONFIG_EXT2_FS=y and CONFIG_EXT3_FS=y are both set to built-in, EXT4 filesystem support becomes automatically available/hard-coded without requiring an explicit CONFIG_EXT4_FS line in the configuration file. This is specific to how Armbian handles kernel configuration and differs from typical standalone Linux kernel configuration behavior.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-08-30T06:56:33.372Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T06:56:33.372Z
Learning: In Armbian kernel configuration, the BTRFS configuration logic preserves existing settings (whether built-in 'y' or module 'm') and only sets BTRFS_FS to module when it was previously disabled or not set, achieving "allow but not require" flexibility while maintaining backward compatibility.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-27T13:03:53.146Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:2664-2671
Timestamp: 2025-07-27T13:03:53.146Z
Learning: In Linux kernel configuration for the Armbian build system, when CONFIG_EXT2_FS and CONFIG_EXT3_FS are both set to =y (built-in), CONFIG_EXT4_FS is automatically enabled/hard-coded and does not need to be explicitly specified in the configuration file. This dependency relationship means that EXT4 support is implicitly included when EXT2 and EXT3 are built into the kernel.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-26T11:14:41.697Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:82-83
Timestamp: 2025-07-26T11:14:41.697Z
Learning: In Linux kernel 6.13 and later, CONFIG_ZBUD was deprecated and is scheduled for removal in kernel 6.15. The zbud compressed page allocator was found to consume more memory than alternatives like zsmalloc. Therefore, CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD becomes obsolete in current kernels, and make defconfig will auto-correct by removing such deprecated options. This demonstrates how kernel defconfigs can be backwards compatible but not forward compatible.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
📚 Learning: 2025-07-15T21:09:23.252Z
Learnt from: pyavitz
Repo: armbian/build PR: 8383
File: config/kernel/linux-sunxi64-edge.config:57-64
Timestamp: 2025-07-15T21:09:23.252Z
Learning: In Linux kernel configuration, when CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y is set, the ondemand governor is implicitly enabled by default, making the explicit CONFIG_CPU_FREQ_GOV_ONDEMAND=y line redundant. The make menuconfig tool automatically removes such redundant lines. This behavior applies to CPU frequency governor configurations in general - setting a default governor automatically enables that governor.

Applied to files:

  • config/kernel/linux-nuvoton-ma35d1-vendor.config
🔇 Additional comments (22)
config/bootscripts/boot-nuvoton-ma35d1.cmd (7)

1-16: LGTM - Well-structured defaults and header.

The boot script header and default values are properly set up. Memory map comments at lines 17-26 are helpful documentation. Default values follow Armbian conventions.


17-46: LGTM - Memory layout and PARTUUID detection.

The memory layout is well-documented with non-overlapping regions. PARTUUID detection with fallback to LABEL is a robust approach for root device identification.


48-79: LGTM - Environment loading and console configuration.

The armbianEnv.txt loading with proper error handling and fallback is well-implemented. Console argument construction correctly handles all three modes (serial, display, both).


81-89: LGTM - Bootargs construction with Docker support.

The bootargs construction is correct, including the helpful comment about OP-TEE reserved memory region. Docker cgroup options are properly applied when enabled.


91-117: LGTM - Kernel, initrd, and DTB loading.

The loading sequence with appropriate error handling is well-implemented. Critical failures (kernel, DTB) exit appropriately, while initramfs failure gracefully falls back to booting without it.


119-146: LGTM - Overlay handling with proper error recovery.

The overlay application logic with error tracking and DTB rollback on failure is well-designed. The two-pass approach (kernel overlays then user overlays) and the final FDT resize to actual size follow best practices.


148-155: LGTM - Boot execution and recompilation note.

The final boot sequence with debug output and the helpful recompilation comment are appropriate.

config/kernel/linux-nuvoton-ma35d1-vendor.config (6)

1-2: Note: Run rewrite-kernel-config as requested by maintainer.

Per the PR comments, rpardini requested the author run rewrite-kernel-config to ensure the kernel defconfig is saved in the correct format. This config appears comprehensive for the MA35D1 platform.


38-56: Verify errata applicability for Cortex-A35.

The config disables many ARM64 errata. This is likely correct since MA35D1 uses Cortex-A35 cores, which don't share the same errata as other ARM implementations (Cavium, Qualcomm, etc.). Confirm with Nuvoton documentation that no Cortex-A35-specific errata are needed.


63-68: Security mitigations disabled - verify vendor recommendation.

KPTI (UNMAP_KERNEL_AT_EL0), PAN, and UAO are disabled. While this follows vendor configuration (per learnings about maintaining alignment with vendor configs), these are security features. Verify with Nuvoton that the Cortex-A35 implementation doesn't benefit from these or that they're intentionally disabled for performance on this embedded platform.


286-288: LGTM - MA35D1 platform drivers enabled.

The MA35D1-specific peripheral drivers (KS, EBI, TIMER, and others throughout the config) are properly enabled for full platform support.


13-27: LGTM - Comprehensive container support.

Full cgroup hierarchy, namespaces, and BPF support are enabled, which aligns well with the Docker optimizations in the boot script.


625-627: LGTM - OP-TEE support enabled.

OP-TEE support is correctly enabled to match the boot chain (BL32).

config/sources/families/nuvoton-ma35d1.conf (9)

1-18: LGTM - Header and basic configuration.

The SPDX license header, boot flow documentation, and basic configuration variables are properly set up.


20-42: LGTM - U-Boot and ATF configuration.

The U-Boot and ATF source configuration is properly set up. The MA35D1_DDR_DTB variable allows override while defaulting to the 512MB IoT board configuration.


51-64: LGTM - Kernel branch configuration.

The vendor branch configuration is properly set up for the 5.10 kernel. The case statement structure allows future addition of mainline/edge branches.


66-70: LGTM - Host dependencies for OP-TEE.

The OP-TEE build dependencies (pycryptodome, pyelftools) are correctly added using the standard Armbian pattern.


72-80: LGTM - OP-TEE source fetching.

The OP-TEE source fetching uses the standard Armbian fetch_from_repo mechanism correctly.


82-104: LGTM - ATF post-processing with proper verification.

The ATF post-processing function correctly verifies build outputs and builds fiptool for use in the FIP creation step.


109-136: LGTM - OP-TEE compilation function.

The nested function placement is noted as intentional for build hashing. The build flags (NOWERROR, LDFLAGS for rwx-segments) handle compatibility with newer toolchains appropriately.


249-276: LGTM - SD card layout with proper offsets.

The write_uboot_platform function correctly writes boot components at the expected offsets. The duplicate header write (sectors 2 and 3) provides redundancy, and the layout matches the offsets defined in the Python header script.


67-70: Style compliance: function keyword used consistently.

All functions correctly use the function keyword as preferred by the maintainers.

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Regarding the precompiled kernel modules concern: I contacted Nuvoton and they confirmed that VC8000 (video codec) and DCUltra (display controller) are licensed Verisilicon IPs. Verisilicon does not permit open-sourcing these drivers, so Nuvoton can only provide binary .ko files.

These modules won't be included in Armbian. Users who need video/display support can contact Nuvoton directly for kernel-version-matched .ko files. Or I can provide a repository where these files can be pulled.

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Nice. Let's go. I leave final merge to @igorpecovnik

@github-actions github-actions bot removed the Needs review Seeking for review label Jan 11, 2026
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otherwise lgtm

@github-actions github-actions bot added the Needs review Seeking for review label Jan 11, 2026
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🚫 Missing required board assets

This PR adds new board configuration(s). Required assets must already exist in github/armbian/armbian.github.io.
They are required by Armbian Imager to ensure all boards are displayed with proper images.

  • Board images: board-images/<board>.png (1920x1080 px transparent)
  • Vendor logos: board-vendor-logos/<vendor>-logo.png (512x512 px transparent)

Missing items

  • Board image missing for numaker-iot-ma35d16f90

    • Expected: board-images/numaker-iot-ma35d16f90.png
    • Fix: add the file to armbian/armbian.github.io (folder board-images/)
  • Vendor logo missing for vendor nuvoton (used by board numaker-iot-ma35d16f90)

    • Expected: board-vendor-logos/nuvoton-logo.png
    • Fix: add the file to armbian/armbian.github.io (folder board-vendor-logos/)
    • Naming rules: lowercase, dashes (e.g. kobol-logo.png, not Kobol_logo.png)

Once the missing files are added (or a PR is opened in armbian/armbian.github.io), re-run this check.

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Actionable comments posted: 0

🧹 Nitpick comments (3)
config/sources/families/nuvoton-ma35d1.conf (3)

38-39: Use declare -g for consistency.

The DDR DTB configuration variable should use declare -g to match the pattern used for other variables in this file and maintain consistency with Armbian conventions.

♻️ Proposed fix
-MA35D1_DDR_DTB="${MA35D1_DDR_DTB:-ma35d1-cpu800-wb-512m}"
+declare -g MA35D1_DDR_DTB="${MA35D1_DDR_DTB:-ma35d1-cpu800-wb-512m}"

51-59: Consider explicitly setting KERNELDEFCONFIG.

The vendor kernel branch configuration doesn't explicitly declare KERNELDEFCONFIG. While the build system may auto-detect the appropriate defconfig, explicitly setting it improves clarity and prevents potential build issues.

Based on the PR summary mentioning ma35d1_defconfig:

 	vendor)
 		declare -g KERNEL_MAJOR_MINOR="5.10"
 		declare -g KERNELSOURCE='https://github.com/OpenNuvoton/MA35D1_linux-5.10.y.git'
 		declare -g KERNELBRANCH="branch:master"
 		declare -g KERNELPATCHDIR="nuvoton-ma35d1-${BRANCH}"
+		declare -g KERNELDEFCONFIG="ma35d1_defconfig"
 		declare -g LINUXCONFIG="linux-nuvoton-ma35d1-${BRANCH}"
 		;;

249-276: Add status=none to DTB write for consistency.

The DTB write operation at Line 269 should include status=none to match the pattern used for other dd commands and align with current Armbian standards for write_uboot_platform implementations.

♻️ Proposed fix
-	[[ -f "${bl2_dtb_bin}" ]] && dd if="${bl2_dtb_bin}" of="${target_dev}" bs=1024 seek=128 conv=notrunc
+	[[ -f "${bl2_dtb_bin}" ]] && dd if="${bl2_dtb_bin}" of="${target_dev}" bs=1024 seek=128 conv=notrunc status=none

Based on learnings, newer Rockchip family implementations consistently use status=none in dd commands within write_uboot_platform.

📜 Review details

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Review profile: CHILL

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📥 Commits

Reviewing files that changed from the base of the PR and between bfcecbc and edd101d.

📒 Files selected for processing (1)
  • config/sources/families/nuvoton-ma35d1.conf
🧰 Additional context used
🧠 Learnings (60)
📓 Common learnings
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub API (https://api.github.com/repos/armbian/build/pulls/{pr_number}/files) to get the complete picture of what files are being added or modified, especially for U-Boot patches that will be applied during the build process.
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.
Learnt from: rpardini
Repo: armbian/build PR: 8879
File: config/sources/families/uefi-x86.conf:0-0
Timestamp: 2025-11-06T15:36:04.682Z
Learning: As of PR #8879, the uefi-x86 family in the Armbian build system now includes kernel patches for the first time. The current and edge branches for uefi-x86 are specifically configured for Apple T2-based x86 machines, including T2-specific patches from the linux-t2 project and custom kernel configuration options for Apple hardware drivers.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files (regardless of file extension), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features. The file extensions indicate board support status: .conf (standard support), .csc (community supported), .eos (end of support), .tvb (tvbox), .wip (work in progress).
Learnt from: HackingGate
Repo: armbian/build PR: 8665
File: config/boards/photonicat2.csc:4-4
Timestamp: 2025-10-26T10:41:35.118Z
Learning: In the Armbian build system, rk3576 boards consistently use BOARDFAMILY="rk35xx" for both vendor and edge kernel targets. The rk35xx family configuration sources rockchip64_common.inc, which provides edge and current kernel branch definitions, making these branches available even though they're not defined directly in rk35xx.conf.
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:64-70
Timestamp: 2025-09-14T06:29:18.958Z
Learning: In the Armbian build system, vendor branch configurations in family files are designed to be shared across multiple SoCs within the same family that use the same vendor kernel tree. For example, rk35xx and rockchip-rk3588 families both use identical vendor branch settings (same KERNELSOURCE, KERNELBRANCH, and KERNELPATCHDIR), demonstrating that vendor branches are intentionally generic rather than SoC-specific.
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:76-86
Timestamp: 2025-03-31T22:20:48.475Z
Learning: For the Armbian build project, maintaining consistency with existing patches across U-Boot versions (such as between 2025.01 and 2025.04) is prioritized over refactoring individual patches for code improvements.
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.
📚 Learning: 2025-11-02T20:49:56.719Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8849
File: config/boards/radxa-e54c.csc:14-28
Timestamp: 2025-11-02T20:49:56.719Z
Learning: In Armbian board configuration files (config/boards/*.conf, *.csc, etc.), do not use kernel_config_set, kernel_config_set_m, kernel_config_set_y, or custom_kernel_config__* functions to modify kernel configuration. Kernel configuration is associated with LINUXFAMILY/BOARDFAMILY, not individual BOARD. Board-specific kernel modifications cause inconsistency in kernel packages published to the apt repository because boards within a family share the same kernel packages. Kernel configuration changes must be made in the appropriate kernel config file (e.g., config/kernel/linux-*-*.config) or in family configuration files (config/sources/families/*.conf, *.inc) instead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-03T20:46:29.189Z
Learnt from: rpardini
Repo: armbian/build PR: 9159
File: patch/u-boot/u-boot-genio/0026-dts-configs-add-Grinn-GenioSBC-510.patch:161-161
Timestamp: 2026-01-03T20:46:29.189Z
Learning: For the Armbian genio family (config/sources/families/genio.conf and patch/u-boot/u-boot-genio/), when reviewing PRs that include vendor U-Boot patches from Collabora, avoid flagging potential issues in board configurations that are out of scope for the PR's primary focus (e.g., don't flag Genio 510/700 board issues when the PR is focused on radxa-nio-12l/Genio 1200). The maintainer prioritizes keeping vendor patches close to upstream for easier re-copying and maintenance, even if secondary board configs have potential mismatches.
<!-- </add_learning>

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:40:52.109Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:40:52.109Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, when KERNELSOURCE is not explicitly declared in a case branch, the system falls back to a default KERNELSOURCE value, so missing KERNELSOURCE declarations are not critical issues.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-17T04:12:33.125Z
Learnt from: pyavitz
Repo: armbian/build PR: 8388
File: config/boards/kickpik2b.conf:1-14
Timestamp: 2025-07-17T04:12:33.125Z
Learning: In the Armbian build system, board configuration files (*.conf) follow a project standard of not including shebang lines, even though they contain bash code and are sourced by the build system. This is an established Armbian convention that individual contributors are expected to follow, and changes to this standard would require broader project maintainer approval.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:04.845Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-edge.config:80-82
Timestamp: 2025-09-27T21:50:04.845Z
Learning: In the Armbian build system, kernel configuration files are generated through this automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-25T03:42:09.086Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:42:09.086Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, KERNELSOURCE is explicitly declared when using unofficial or 3rd party kernel repositories (like the "dev" branch using https://github.com/apritzel/linux), but can be omitted when using the standard mainline kernel (like the "edge" branch) since it will fall back to the default mainline source.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:47:58.020Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-bcm2711-edge.config:859-861
Timestamp: 2025-09-27T21:47:58.020Z
Learning: In the Armbian build system, kernel configuration files in config/kernel/ are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:49:55.796Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sm8250-current.config:78-80
Timestamp: 2025-09-27T21:49:55.796Z
Learning: In the Armbian build system, kernel configuration files are generated through an automated process: taking previous config → applying scripted changes from armbian-kernel.sh → running kernel's `make oldconfig` → processing by Armbian machinery back into config files. This automated process properly handles kernel configuration dependencies and reduces the likelihood of manual configuration errors.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-14T06:29:18.958Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:64-70
Timestamp: 2025-09-14T06:29:18.958Z
Learning: In the Armbian build system, vendor branch configurations in family files are designed to be shared across multiple SoCs within the same family that use the same vendor kernel tree. For example, rk35xx and rockchip-rk3588 families both use identical vendor branch settings (same KERNELSOURCE, KERNELBRANCH, and KERNELPATCHDIR), demonstrating that vendor branches are intentionally generic rather than SoC-specific.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-12T19:28:38.491Z
Learnt from: Grippy98
Repo: armbian/build PR: 8622
File: config/sources/families/k3.conf:66-66
Timestamp: 2025-09-12T19:28:38.491Z
Learning: In the Armbian k3 family build system (config/sources/families/k3.conf), builds do not fail when TIBOOT3_BOOTCONFIG is unset, even though tiboot3.bin is still listed in UBOOT_TARGET_MAP. The gating mechanism in pre_config_uboot_target__build_first_stage function works as intended to conditionally build/copy tiboot3.bin only when TIBOOT3_BOOTCONFIG is defined.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:50:15.915Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-sunxi64-current.config:94-94
Timestamp: 2025-09-27T21:50:15.915Z
Learning: When kernel config files are generated through Armbian's automated process (previous config → armbian-kernel.sh changes → make oldconfig → Armbian machinery processing), manual config file edits are not appropriate since they would be overwritten. Deprecated option handling should be implemented in the automated tooling instead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-30T04:13:16.457Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T04:13:16.457Z
Learning: Armbian kernel configuration files like linux-filogic-current.config are autogenerated overlays on top of arch defconfig. Comments added manually will be lost during future updates by maintainers, and explicit "CONFIG_OPTION is not set" statements aren't needed for mutually exclusive options since these are overlay configs that only specify changes from the base configuration.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-22T21:52:01.225Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-201
Timestamp: 2025-09-22T21:52:01.225Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the kernel_config_modifying_hashes array is not universally required for all kernel configuration functions - some functions like armbian_kernel_config__netkit() operate without it, and adding entries with '=m' would be incorrect when the actual result might be '=y' for options already built-in.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-27T15:53:30.629Z
Learnt from: pyavitz
Repo: armbian/build PR: 8421
File: config/kernel/linux-sunxi64-edge.config:805-825
Timestamp: 2025-07-27T15:53:30.629Z
Learning: In the Armbian build system, kernel configurations prioritize broad hardware compatibility over optimization concerns. Even when including numerous legacy/obsolete drivers causes technical issues like increased initramfs size and slower enumeration, the project philosophy is to "appease the masses" by ensuring maximum device compatibility rather than optimizing for specific use cases.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-03T11:42:46.660Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:96-169
Timestamp: 2025-10-03T11:42:46.660Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), deletion of kernel config files does not need to be handled. The workflow intentionally only captures ACMR (added/copied/modified/renamed) changes and does not need to propagate deletions to the aggregator.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-25T18:37:00.330Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8661
File: lib/functions/compilation/armbian-kernel.sh:194-199
Timestamp: 2025-09-25T18:37:00.330Z
Learning: In PR armbian/build#8661, line 235 of lib/functions/compilation/armbian-kernel.sh already contains the corrected comment "BPF link support for netfilter hooks" for NETFILTER_BPF_LINK, not the misleading "BPF_SYSCALL" comment that was flagged during review.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-21T04:12:02.439Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-07-21T04:12:02.439Z
Learning: In the Armbian build system, for recurring maintenance tasks like kernel version bumping, TODO comments should use generic version formats (e.g., "MAJOR.MINOR-rc1") rather than specific version numbers (e.g., "6.17-rc1") to avoid the need for frequent comment updates that would create unnecessary maintenance overhead.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-11T06:16:10.236Z
Learnt from: SuperKali
Repo: armbian/build PR: 8609
File: config/boards/nanopi-r76s.conf:5-5
Timestamp: 2025-09-11T06:16:10.236Z
Learning: In Armbian board configuration files, WIP (Work In Progress) comments describe intended goals or planned features rather than current implementation state. For example, a comment like "WIP: current kernel" indicates that current kernel support is being worked toward, even if KERNEL_TARGET doesn't yet include "current".

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2026-01-07T18:21:41.085Z
Learnt from: rpardini
Repo: armbian/build PR: 9180
File: patch/kernel/archive/sm8250-6.18/0000.patching_config.yaml:4-8
Timestamp: 2026-01-07T18:21:41.085Z
Learning: In Armbian patch/kernel/archive/**/0000.patching_config.yaml files, the version metadata fields (name, branch, last-known-good-tag, kind, type) under the "info stuff" comment are not used by the patching scripts. When reviewing these files, do not suggest updating or fixing these metadata fields. Instead, suggest removing them entirely as they serve no functional purpose.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-11T20:56:20.303Z
Learnt from: glneo
Repo: armbian/build PR: 8913
File: config/sources/families/include/k3_common.inc:57-60
Timestamp: 2025-11-11T20:56:20.303Z
Learning: In config/sources/families/include/k3_common.inc, the OP-TEE build command at line 59 should be updated in a future PR to explicitly set CROSS_COMPILE64=aarch64-linux-gnu- and CROSS_COMPILE32=arm-linux-gnueabihf- instead of relying on OP-TEE's internal defaults, for better clarity and maintainability. User glneo agreed to address this in a separate PR.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-20T18:20:11.985Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8968
File: patch/u-boot/u-boot-sunxi/arm64-dts-sun50i-h6-orangepi.dtsi-Rollback-r_rsb-to-r_i2c.patch:36-36
Timestamp: 2025-11-20T18:20:11.985Z
Learning: The rewrite-patches tool (REWRITE_PATCHES=yes) in the Armbian build system can inadvertently introduce semantic changes when the u-boot/kernel git base revision differs from expected state. The tool applies patches, commits them, and re-exports them using git format-patch, which can cause the re-exported patch to reflect the base revision's state rather than preserving the original patch intent. This is particularly problematic for device tree changes like interrupt specifications. The tool currently lacks validation mechanisms to detect such semantic drift, and affected patches must be manually corrected after rewriting.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-23T10:01:41.310Z
Learnt from: amazingfate
Repo: armbian/build PR: 8419
File: lib/functions/host/prepare-host.sh:272-275
Timestamp: 2025-07-23T10:01:41.310Z
Learning: In the Armbian build system, the design philosophy is to fail fast when host dependencies are not met rather than gracefully skipping unsupported architectures. This ensures build environment consistency and prevents silent failures. Host dependency checks should be explicit and non-negotiable.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-18T23:40:55.905Z
Learnt from: rpardini
Repo: armbian/build PR: 9101
File: lib/functions/image/compress-checksum.sh:44-48
Timestamp: 2025-12-18T23:40:55.905Z
Learning: In the Armbian build framework, host dependencies are strictly controlled, ensuring that specific tools like `zstdmt` are guaranteed to be available in the build environment.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-16T13:40:07.649Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 9087
File: .github/workflows/pr-check-pictures.yml:138-146
Timestamp: 2025-12-16T13:40:07.649Z
Learning: In the Armbian build repository, when introducing new requirements or checks (like the board assets verification workflow), the project prefers an initial educational-only period where violations post helpful PR comments and warnings but don't block merges. This allows contributors to become familiar with new requirements before enforcement is enabled (typically after ~6 months).

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-30T06:48:09.091Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-30T06:48:09.091Z
Learning: In lib/functions/compilation/armbian-kernel.sh, the user prefers flexible grep patterns over anchored ones for BTRFS configuration checks, but agrees to use quiet grep (-q) to avoid polluting build logs.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-22T00:45:26.182Z
Learnt from: djurny
Repo: armbian/build PR: 8315
File: lib/functions/rootfs/distro-agnostic.sh:54-68
Timestamp: 2025-06-22T00:45:26.182Z
Learning: In Armbian build system, external command dependencies like envsubst are handled by adding the required packages (e.g., gettext for envsubst) to host_dependencies in adaptative_prepare_host_dependencies function in lib/functions/host/prepare-host.sh, rather than checking command availability at runtime.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-03-31T22:20:48.475Z
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:76-86
Timestamp: 2025-03-31T22:20:48.475Z
Learning: For the Armbian build project, maintaining consistency with existing patches across U-Boot versions (such as between 2025.01 and 2025.04) is prioritized over refactoring individual patches for code improvements.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-24T04:46:22.901Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-10-24T04:46:22.901Z
Learning: In lib/functions/rootfs/rootfs-create.sh, the FIXME comment about mmdebstrap usage with --aptopt is a future note related to PR #8785, which hasn't been merged yet.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-10T22:05:40.490Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8913
File: config/sources/families/k3-beagle.conf:16-16
Timestamp: 2025-11-10T22:05:40.490Z
Learning: In the Armbian build system, kernel branches using non-mainline/vendor forks (like BeagleBoard's linux repository) should be named "vendor" or "vendor-rt" rather than "current" or "edge". The "current" and "edge" naming is reserved for mainline kernel branches. This affects both the case statement in family config files (e.g., `vendor | vendor-rt)` instead of `current | current-rt)`) and the corresponding KERNEL_TARGET declarations in board config files.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:14:36.024Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:38-44
Timestamp: 2025-06-12T21:14:36.024Z
Learning: In config/bootscripts/boot-sunxi.cmd the unconditional "+1" increment in func_align_addr_next (when align_overlap_oboe_avoidance="on") is intentional. It compensates for a known off-by-one error in U-Boot where the end address is calculated as start+size instead of start+size-1, so the extra page prevents overlap. This behavior should not be “optimized away”.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-05-07T20:49:40.969Z
Learnt from: djurny
Repo: armbian/build PR: 8166
File: config/bootscripts/boot-mvebu.cmd:38-50
Timestamp: 2025-05-07T20:49:40.969Z
Learning: The 4KB (0x1000) boundary used for device tree size calculations in U-Boot scripts is specific to how the `fdt resize` command works internally and should remain hardcoded rather than being tied to adjustable alignment variables.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-14T06:32:29.806Z
Learnt from: amazingfate
Repo: armbian/build PR: 8619
File: config/sources/families/rockchip.conf:222-230
Timestamp: 2025-09-14T06:32:29.806Z
Learning: In the Armbian build system, the write_uboot_platform() function implementations follow different patterns across Rockchip family files. The newer standard (used in rockchip64_common.inc and rk3506) includes 'status=none' parameter in dd commands, while older implementations (rk3288, rk322x) use an older pattern without this parameter. The rk3506 implementation correctly follows the current Rockchip family standard.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-04T23:45:38.860Z
Learnt from: djurny
Repo: armbian/build PR: 8272
File: config/bootscripts/boot-mvebu.cmd:182-186
Timestamp: 2025-06-04T23:45:38.860Z
Learning: In config/bootscripts/boot-mvebu.cmd, the `fdtfile` variable is mandatory for booting and is pre-set by U-Boot, but can be overridden via armbianEnv.txt. If `fdtfile` is empty, the subsequent device tree file search logic will eventually fail and trigger the critical error "Cannot find DT!" with proper error handling.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:45:02.422Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:17-25
Timestamp: 2025-12-13T11:45:02.422Z
Learning: In the SpacemiT U-Boot patches for Armbian (patch/u-boot/legacy/u-boot-spacemit-k1/), the environment variable `devnum` is set to the device name string (e.g., "mmc", "nvme") rather than a numeric index, and `distro_bootpart` holds the partition number. This implementation aligns with mainline U-Boot conventions for the SpacemiT platform and has been verified to work correctly by the maintainer.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-13T11:39:08.046Z
Learnt from: pyavitz
Repo: armbian/build PR: 9058
File: patch/u-boot/legacy/u-boot-spacemit-k1/003-SpacemiT-K1X-Fixups.patch:28-67
Timestamp: 2025-12-13T11:39:08.046Z
Learning: In the Armbian build system for SpacemiT U-Boot patches (patch/u-boot/legacy/u-boot-spacemit-k1/), alignment with mainline U-Boot behavior is prioritized. For example, in boot mode handling, leaving devnum unchanged in the default case (when devtype is cleared) follows mainline conventions rather than explicitly clearing it to handle edge cases.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-03-31T22:20:41.849Z
Learnt from: rpardini
Repo: armbian/build PR: 8044
File: patch/u-boot/v2025.04/cmd-fileenv-read-string-from-file-into-env.patch:73-75
Timestamp: 2025-03-31T22:20:41.849Z
Learning: When porting patches between U-Boot versions (like from 2025.01 to 2025.04), rpardini prefers to maintain patches as-is rather than introducing refactoring changes, even when potential improvements are identified. This approach prioritizes consistency and reduces the risk of introducing new issues.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-17T05:40:15.131Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-10-17T05:40:15.131Z
Learning: In the Armbian build framework, wget should not be used. Use curl instead. Flag any usage of wget as an issue during code reviews.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-11T22:00:13.411Z
Learnt from: rafayahmed317
Repo: armbian/build PR: 8484
File: config/kernel/linux-rk35xx-vendor.config:904-906
Timestamp: 2025-08-11T22:00:13.411Z
Learning: In the linux-rk35xx-vendor kernel, the LTE driver options (CONFIG_LTE, CONFIG_LTE_RM310, CONFIG_LTE_EM05) are defined as boolean in drivers/net/lte/Kconfig and cannot be built as modules - they must be either built-in (=y) or disabled.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-02T05:46:10.664Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-02T05:46:10.664Z
Learning: In the Armbian build system, the KERNEL_CONFIGURE=yes switch is deprecated. The recommended approach for kernel configuration is now to use the `kernel-config` build command, which provides a more structured way to configure kernel options.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-26T12:56:29.185Z
Learnt from: rpardini
Repo: armbian/build PR: 8820
File: config/sources/families/include/meson64_common.inc:51-53
Timestamp: 2025-10-26T12:56:29.185Z
Learning: In the Armbian build framework, scripts/config correctly handles kernel configuration option names both with and without the CONFIG_ prefix, so opts_m+=("CONFIG_RTL8822CS") and opts_m+=("RTL8822CS") are both valid and will work correctly.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-08-02T05:46:10.664Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-08-02T05:46:10.664Z
Learning: In the Armbian build system, the modern recommended approach for kernel configuration is to use the kernel-config command via "./compile.sh BOARD=boardname BRANCH=branchname kernel-config" instead of the deprecated KERNEL_CONFIGURE=yes flag. This provides a two-step workflow: configure using menuconfig, then build, with better transparency and control over configuration changes.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-27T21:49:27.188Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8678
File: config/kernel/linux-k3-edge.config:97-99
Timestamp: 2025-09-27T21:49:27.188Z
Learning: make oldconfig preserves existing deprecated kernel options and only prompts for new configuration options, unlike make defconfig which would auto-correct by removing deprecated options. This explains why deprecated options like CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD might persist through the automated Armbian kernel configuration generation process.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-28T01:49:34.661Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9136
File: lib/functions/compilation/armbian-kernel.sh:529-537
Timestamp: 2025-12-28T01:49:34.661Z
Learning: In lib/functions/compilation/armbian-kernel.sh's opts_m handling, checking .config (kernel defconfig) is problematic because savedefconfig elides options matching defconfig, making it impossible to distinguish overlay silence from defconfig agreement. The correct approach is to check only kernel_config_source_filename (the overlay) for explicit =y, otherwise default to =m, letting savedefconfig handle deduplication with defconfig automatically.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-04T17:59:19.369Z
Learnt from: igorpecovnik
Repo: armbian/build PR: 8705
File: .github/workflows/rewrite-kernel-configs.yml:217-220
Timestamp: 2025-10-04T17:59:19.369Z
Learning: In the Armbian build repository's kernel config rewrite workflow (.github/workflows/rewrite-kernel-configs.yml), the workflow is designed to rewrite existing kernel configs only. New/untracked files can be safely ignored, so using `git diff --quiet` (which ignores untracked files) is the correct approach for detecting changes rather than `git status --porcelain`.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-22T22:08:54.273Z
Learnt from: tabrisnet
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-09-22T22:08:54.273Z
Learning: When extracting comments from Linux Kconfig files, def_bool and def_tristate entries use their parameter as a dependency/default condition, not as a feature description. Comments should be generated differently for these entry types to avoid misleading inline documentation.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-18T03:36:17.862Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8537
File: config/boards/qcom-robotics-rb5.conf:1-1
Timestamp: 2025-09-18T03:36:17.862Z
Learning: In Armbian board configuration files (regardless of file extension), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features. The file extensions indicate board support status: .conf (standard support), .csc (community supported), .eos (end of support), .tvb (tvbox), .wip (work in progress).

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-19T13:56:45.124Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-19T13:56:45.124Z
Learning: When reviewing kernel or u-boot version bump PRs in the Armbian build system, check if patches existed in previous kernel version directories (e.g., sunxi-6.12, sunxi-6.13) before describing them as new features. If a patch and the majority of its contents existed previously with no major functionality changes, focus the review on the actual changes: the version bump itself and patch compatibility adjustments. Don't describe existing patches being ported/maintained across versions as new features or drivers—this is misleading. The patches are existing code being re-aligned to work with the new upstream version.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-25T03:51:50.830Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub or the PR API to get the complete picture of what files are being added or modified.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-25T03:51:50.830Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8428
File: config/boards/lckfb-taishanpi.csc:5-9
Timestamp: 2025-07-25T03:51:50.830Z
Learning: When reviewing PRs in the Armbian build system, U-Boot defconfig files and patches may be added as part of the PR changes but might not be visible in the current repository clone state during review. It's important to check the actual PR file changes directly via GitHub API (https://api.github.com/repos/armbian/build/pulls/{pr_number}/files) to get the complete picture of what files are being added or modified, especially for U-Boot patches that will be applied during the build process.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-24T10:08:40.313Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8328
File: lib/functions/compilation/patch/drivers_network.sh:542-545
Timestamp: 2025-06-24T10:08:40.313Z
Learning: In the Armbian build system, when a PR removes build support for a specific kernel version, version check issues for that removed version become practically irrelevant even if they appear incorrect in isolation. Context about which kernel versions are being deprecated/removed is important for understanding the impact of version-related code changes.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-17T05:09:02.306Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 0
File: :0-0
Timestamp: 2025-12-17T05:09:02.306Z
Learning: In the Armbian build system, kernel patches (e.g., in patch/kernel/archive/sunxi-6.18/patches.armbian/) contain device tree overlays and other code that have existed for years and are maintained/ported across kernel versions. When reviewing PRs that modify these patch files, focus on the actual changes being made (e.g., Makefile fixes, new additions) rather than reviewing the entire existing content within the patch as if it were new code. The patch file contents are existing, stable code unless explicitly modified in the PR diff.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-03-31T12:57:13.880Z
Learnt from: libiunc
Repo: armbian/build PR: 8033
File: config/kernel/linux-starfive2-vendor.config:43-43
Timestamp: 2025-03-31T12:57:13.880Z
Learning: For StarFive2 platform kernel configurations, maintain alignment with vendor-provided configurations rather than modifying security settings like SECCOMP. This ensures hardware compatibility as intended by the manufacturer.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-09-07T17:39:32.272Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8586
File: config/boards/nanopi-r76s.conf:15-21
Timestamp: 2025-09-07T17:39:32.272Z
Learning: In the Armbian build system, the variables $BOARD and $SDCARD are always set by the build framework, so guard checks for these variables are unnecessary in board configuration files and hook functions.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-10-14T05:08:11.785Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8754
File: config/boards/bestv-r3300-l.csc:14-16
Timestamp: 2025-10-14T05:08:11.785Z
Learning: In the Armbian build system, BOOTBRANCH_BOARD is a valid framework variable used as a fallback when BOOTBRANCH is unset. The framework checks BOOTBRANCH_BOARD before applying the default bootloader branch value (see config/sources/common.conf). Board configuration files can use BOOTBRANCH_BOARD to specify the bootloader branch.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-06-12T21:03:39.686Z
Learnt from: djurny
Repo: armbian/build PR: 8287
File: config/bootscripts/boot-sunxi.cmd:148-161
Timestamp: 2025-06-12T21:03:39.686Z
Learning: In Armbian U-Boot bootscripts, the `${cpu}` environment variable is always pre-set by U-Boot (or defaults to a valid value), so additional guards against it being unset are unnecessary.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-07-23T07:30:52.265Z
Learnt from: EvilOlaf
Repo: armbian/build PR: 8417
File: config/boards/orangepi5pro.csc:57-58
Timestamp: 2025-07-23T07:30:52.265Z
Learning: In the Armbian build system, BOOTPATCHDIR can contain board-specific subdirectories (e.g., board_orangepi5pro) for applying patches to specific boards only. The framework automatically checks if such board-specific subdirectories exist for the board being built and applies those patches accordingly.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-11-13T14:50:44.662Z
Learnt from: tabrisnet
Repo: armbian/build PR: 8925
File: lib/functions/host/docker.sh:141-141
Timestamp: 2025-11-13T14:50:44.662Z
Learning: In the Armbian build system, certain boards have U-Boot that doesn't build correctly on ubuntu:noble but works on ubuntu:jammy. For these boards, DOCKER_ARMBIAN_BASE_IMAGE can be set to "ubuntu:jammy" via an extension file loaded before docker_cli_prepare() runs, allowing legacy toolchains to work while the community works on proper fixes with limited resources.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-15T23:26:40.214Z
Learnt from: bryanbrattlof
Repo: armbian/build PR: 9081
File: config/boards/sk-am62-sip.conf:18-20
Timestamp: 2025-12-15T23:26:40.214Z
Learning: For TI K3 SoC boards with only 512MB of DDR (like SK-AM62-SIP), OP-TEE (BL32) and TFA must be placed at the bottom of DDR (e.g., BL32_BASE=0x80080000, CFG_TZDRAM_START=0x80080000) rather than the standard high-memory layout. This is necessary because U-Boot relocates itself to the highest DDR address (up to 2GB max) during bootup, which would overwrite OP-TEE/TFA if they were placed at the top of the 512MB DDR region. PRELOADED_BL33_BASE is typically set to 0x82000000 in this configuration.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
📚 Learning: 2025-12-12T23:09:56.813Z
Learnt from: tabrisnet
Repo: armbian/build PR: 9058
File: config/sources/families/spacemit.conf:39-45
Timestamp: 2025-12-12T23:09:56.813Z
Learning: In Armbian build configs for vendor kernel sources, prefer the following branch naming conventions: use 'vendor' or 'vendor-rt' for stable vendor releases, and 'vendor-edge' for bleeding-edge/pre-release vendor versions. The 'edge' naming without the 'vendor-' prefix is reserved for mainline kernel branches. Apply this pattern to family config files under config/sources/families (e.g., spacemit.conf) to ensure consistent vendor kernel sourcing naming across the repository.

Applied to files:

  • config/sources/families/nuvoton-ma35d1.conf
🔇 Additional comments (11)
config/sources/families/nuvoton-ma35d1.conf (11)

12-18: LGTM!

Architecture and kernel settings are correctly configured. The BTF disablement for the 5.10.y vendor kernel is appropriately justified.


20-28: LGTM!

U-Boot configuration correctly specifies the vendor fork and artifact collection. The UBOOT_TARGET_MAP appropriately lists all boot chain artifacts (header, BL2, BL31, OP-TEE, FIP) that will be assembled during post-processing.


30-36: LGTM!

TF-A source configuration is correctly specified with appropriate GCC version constraint and linker flag handling.


44-49: LGTM!

Linux family and boot configuration settings are correctly specified and consistent with the family naming.


61-64: LGTM!

Kernel target and CPU frequency settings are correctly configured, matching the hardware specifications (dual Cortex-A35 @ 800 MHz).


66-70: LGTM!

Host dependencies function correctly adds OP-TEE build requirements following Armbian extension patterns.


72-80: LGTM!

OP-TEE source fetching function correctly uses Armbian's fetch_from_repo mechanism with appropriate parameters.


82-104: LGTM!

ATF post-processing function correctly verifies build artifacts and prepares fiptool. Error handling is comprehensive and uses appropriate Armbian framework functions.


109-136: LGTM!

OP-TEE compilation function is well-structured with appropriate cross-compilation settings, error handling, and output verification. The nested definition ensures correct build hashing as noted in the comment.


138-173: LGTM!

FIP assembly logic correctly integrates BL31, OP-TEE, and U-Boot using fiptool. Path handling and artifact verification are thorough and follow Armbian patterns.


175-242: LGTM!

Boot header generation correctly implements the Nuvoton MA35D1 NuWriter-compatible format with proper CRC calculation, image descriptors, and offset handling. The Python script produces a vendor-specific 512-byte header that matches the offsets used in write_uboot_platform().

@igorpecovnik igorpecovnik merged commit b954ad8 into armbian:main Jan 12, 2026
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@adeepn
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adeepn commented Jan 12, 2026

Please, use descriptive commit messages and squash commits for one fix/task

@igorpecovnik
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igorpecovnik commented Jan 13, 2026

CI have troubles building u-boot https://paste.armbian.com/sefuguyoce

Here we have two options:

  • find out which build host is working: jammy, noble, trixie (DOCKER_ARMBIAN_BASE_IMAGE="ubuntu:noble"... )
  • fix code

Edit: Noble works & this armbian/os@56f45d7 will do.

@rpardini
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CI have troubles building u-boot paste.armbian.com/sefuguyoce

Here we have two options:

  • find out which build host is working: jammy, noble, trixie (DOCKER_ARMBIAN_BASE_IMAGE="ubuntu:noble"... )
  • fix code

Edit: Noble works & this armbian/os@56f45d7 will do.

This is exactly what I've been crying about for the last few weeks @igorpecovnik

  • devs develop against the armbian/build default (that is noble)
  • armbian/os sets everything to build against jammy
  • developer sad, maintainers sad, CI broken

this is not a good idea. I understand we need to build some things on jammy due to issues, but not everything

@igorpecovnik
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igorpecovnik commented Jan 13, 2026

this is not a good idea. I understand we need to build some things on jammy due to issues, but not everything

I am totally aware. This workaround was implemented in crisis pre-release time when we knew "half of" images for most hot boards (rk3588) simply won't boot ... there was no time for any testing and fixing.

Moving to Trixie and adjust?

@TuAFBogey
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Is there anything you expect me to do? @igorpecovnik @rpardini

@rpardini
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Is there anything you expect me to do?

Not really, excuse our mess. If you really want to go the extra mile you could try and build the bootloader under Ubuntu jammy and see if you can fix it. It's probably not worth it, but if using Docker you can try with

./compile.sh BOARD=numaker-iot-ma35d16f90 BRANCH=vendor RELEASE=trixie ARTIFACT_IGNORE_CACHE=yes DOCKER_ARMBIAN_BASE_IMAGE="ubuntu:jammy" DOCKERFILE_USE_ARMBIAN_IMAGE_AS_BASE=no uboot

It's going to be about some compiler or linker flag, etc. It should be handled in the standard functions, but maybe your new code will need some if HOSTRELEASE == x or such.

@TuAFBogey
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Is there anything you expect me to do?

Not really, excuse our mess. If you really want to go the extra mile you could try and build the bootloader under Ubuntu jammy and see if you can fix it. It's probably not worth it, but if using Docker you can try with

./compile.sh BOARD=numaker-iot-ma35d16f90 BRANCH=vendor RELEASE=trixie ARTIFACT_IGNORE_CACHE=yes DOCKER_ARMBIAN_BASE_IMAGE="ubuntu:jammy" DOCKERFILE_USE_ARMBIAN_IMAGE_AS_BASE=no uboot

It's going to be about some compiler or linker flag, etc. It should be handled in the standard functions, but maybe your new code will need some if HOSTRELEASE == x or such.

I've implemented a fix for the Jammy toolchain issue. The --no-warn-rwx-segments linker flag isn't supported on older binutils, so I made it conditional:

  # Check if linker supports --no-warn-rwx-segments (binutils 2.39+)
  local ldflags=""
  if ${cross_compile}ld --help 2>&1 | grep -q "no-warn-rwx-segments"; then
      ldflags="--no-warn-rwx-segments"
  fi

Successfully built u-boot on Ubuntu Jammy. Will test the full image tomorrow and open a new PR with the fix.

@rpardini
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The --no-warn-rwx-segments linker flag isn't supported on older binutils, so I made it conditional:

Nice. Please include the string ubuntu:jammy in the comment so we can find it later, when return the jammy zombie to its grave.

@TuAFBogey
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The --no-warn-rwx-segments linker flag isn't supported on older binutils, so I made it conditional:

Nice. Please include the string ubuntu:jammy in the comment so we can find it later, when return the jammy zombie to its grave.

Done! Added the comment and opened #9249

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