add: initial support for Milk-V Jupiter/SpacemiT K1 by Owen-sz · Pull Request #56 · UMN-Kernel-Object/ukoos

Owen-sz · 2025-10-03T09:11:45Z

Adds genimage.cfg, brings in vendor opensbi and u-boot via nix files. Adds Jupiter dev-image

Signed-off-by: Owen <owen@fyralabs.com>

- Fixes the Nix build by removing the absolute path to Bash. - Changes packages to be named "name/target" instead of "name-target" - Target names also have hyphens in them, so parsing them is a bit of a pain. - Removes aliases for components of the image. These are still exposed as passthru attributes, but they don't have the target name in them any more. This should be more consistent and simpler to program around. - Uses a "g" prefix for non-release versions instead of another hyphenated component. This again reduces ambiguity in parsing paths. - Adds flake checks that all the ukoOS builds succeed and all the image builds succeed, and runs these checks in GitHub Actions. - Prepares GitHub Actions to be used with other image targets (e.g. #56). This is done through the all-images package; whatever files that builds will get uploaded as artifacts. - Fixes the REUSE tool being added as a dependency of ukoos instead of as a devShell input. Signed-off-by: Nathan Ringo <me@remexre.com>

* Large-scale refactor of Nix flake. - Fixes the Nix build by removing the absolute path to Bash. - Changes packages to be named "name/target" instead of "name-target" - Target names also have hyphens in them, so parsing them is a bit of a pain. - Removes aliases for components of the image. These are still exposed as passthru attributes, but they don't have the target name in them any more. This should be more consistent and simpler to program around. - Uses a "g" prefix for non-release versions instead of another hyphenated component. This again reduces ambiguity in parsing paths. - Adds flake checks that all the ukoOS builds succeed and all the image builds succeed, and runs these checks in GitHub Actions. - Prepares GitHub Actions to be used with other image targets (e.g. #56). This is done through the all-images package; whatever files that builds will get uploaded as artifacts. - Fixes the REUSE tool being added as a dependency of ukoos instead of as a devShell input. Signed-off-by: Nathan Ringo <me@remexre.com> * Adds doc/book/ to .gitignore. Signed-off-by: Nathan Ringo <me@remexre.com> --------- Signed-off-by: Nathan Ringo <me@remexre.com>

Signed-off-by: Owen Zimmerman <123591347+Owen-sz@users.noreply.github.com>

Signed-off-by: Owen <owen@fyralabs.com>

Signed-off-by: Owen Zimmerman <owen@fyralabs.com>

… file Signed-off-by: Owen Zimmerman <owen@fyralabs.com>

Signed-off-by: Owen <owen@fyralabs.com>

Owen-sz · 2025-10-14T02:52:26Z

Should be good now.

Signed-off-by: Owen-sz <owen@fyralabs.com>

remexre

Test that this boots the ukoOS kernel on real hardware, plz

flake.nix

src/image-milkv-jupiter/genimage.cfg

src/image-milkv-jupiter/opensbi.nix

src/image-milkv-jupiter/u-boot.txt

Signed-off-by: Owen-sz <owen@fyralabs.com>

src/image-milkv-jupiter/genimage.cfg

remexre · 2025-12-04T02:12:15Z

src/image-milkv-jupiter/u-boot.txt

@@ -0,0 +1,20 @@
+autoload=0


needs testing on real hw; lmk when you did

Signed-off-by: Owen-sz <owen@fyralabs.com>

Owen-sz · 2026-01-09T00:37:53Z

Notes for testing:

Setup:
Attach UART pins to CPU UART, not security chip UART thing

build:
nix build -L .#all-images

flash src/result/dev-image-milkv-jupiter.img to microSD card

serial into the board

Need to see what u-boot is doing (it's loading GRUB?)

pins to reset/ignore SPI flash, since u-boot is being loaded form SPI flash?

…-image

Owen-sz · 2026-02-13T07:04:28Z

--- UPDATED NOTES ---

BOOT STATUS:

[   6.977] Trying to boot from SD...
[   7.090] switch to partitions #0, OK
[   7.090] mmc0 is current device
[   7.126] 136096 bytes read in 21 ms (6.2 MiB/s)
[   7.128] Unhandled exception: Store/AMO access fault
[   7.133] EPC: 000000007eea8ca8 RA: 000000007ef50ce0 TVAL: 0000000000000000
[   7.139] EPC: 0000000000201ca8 RA: 00000000002a9ce0 reloc adjusted
[   7.146] 
Code: b383 0385 be03 0405 be83 0485 bf03 0505 (e110)
[   7.151]

CHANGES:

The commit after this will be updating the memory addresses in code to match that of the Jupiter, which is a temporary fix, and this should not be merged with those changes.
It also fixes the u-boot.txt file with more configs for the Jupiter.

TESTING:

Go to the ukoOS u-boot repo, use commit ed29515c8baed05cdc1284474a847df214b0383c from the spacemit-k1-testing branch, copy the src/image-milkv-jupiter/u-boot.txt from this Pull Request into the board/spacemit/k1-x/k1-x.env, then to build:
nix build --override-input u-boot-spacemit-k1 ../ukoos-uboot/ -L .#all-images

Correct Jupiter nix file to load kernel into correct spot Add /boot into Jupiter genimage.cfg Update u-boot.txt with Jupiter things, and set new startaddr because the Jupiter's RAM is not the same place as the Duo S and QEMU Update files that rg told me had the Duo S/QEMU staraddr to temporarily to include the Jupiters startaddr Signed-off-by: Owen-sz <owen@fyralabs.com>

add initial support for jupiter

99f551c

Signed-off-by: Owen <owen@fyralabs.com>

remexre mentioned this pull request Oct 4, 2025

Large-scale refactor of Nix flake. #59

Merged

Owen-sz and others added 2 commits October 8, 2025 21:15

Merge branch 'trunk' into owen/add-jupiter-dev-image

f5f6809

Signed-off-by: Owen Zimmerman <123591347+Owen-sz@users.noreply.github.com>

flake: fix duplicate }

00278bf

Signed-off-by: Owen <owen@fyralabs.com>

Owen-sz force-pushed the owen/add-jupiter-dev-image branch from 3a3be76 to 00278bf Compare October 9, 2025 02:36

Owen-sz added 9 commits October 8, 2025 22:45

fix flake spacing

cb1697b

Signed-off-by: Owen <owen@fyralabs.com>

fix missing input thing

20dc582

Signed-off-by: Owen <owen@fyralabs.com>

add license headers to jupiter nix files

19228a4

Signed-off-by: Owen <owen@fyralabs.com>

add license headers to jupiter cfg file

9263f78

Signed-off-by: Owen <owen@fyralabs.com>

add juiter u-boot.txt to REUSE.toml

e7e1404

Signed-off-by: Owen <owen@fyralabs.com>

oops need comma

b17d347

Signed-off-by: Owen <owen@fyralabs.com>

add license header to opensbi jupiter patch

d2dda41

Signed-off-by: Owen Zimmerman <owen@fyralabs.com>

Clean up unused lines in genimage file

c85372b

Signed-off-by: Owen Zimmerman <owen@fyralabs.com>

add BSD-3-Clause license file to LICENSES folder

517871b

Signed-off-by: Owen Zimmerman <owen@fyralabs.com>

Owen-sz changed the title ~~add: initial support for jupiter~~ add: initial support for Milk-V Jupiter/SpacemiT K1 Oct 9, 2025

Owen-sz added 2 commits October 9, 2025 17:07

add BSD-2-Clause license file to LICENSES folder, remove BSD-3-Clause…

b4aaf48

… file Signed-off-by: Owen Zimmerman <owen@fyralabs.com>

fix jupiter package call line in nix flake

d9b9e70

Signed-off-by: Owen <owen@fyralabs.com>

Owen-sz marked this pull request as ready for review October 14, 2025 02:52

Owen-sz added 4 commits October 31, 2025 01:36

add jupiter to all-images

9811ce5

Signed-off-by: Owen-sz <owen@fyralabs.com>

fix builds lol, specify genimage thingy

78b56ad

Signed-off-by: Owen-sz <owen@fyralabs.com>

fix broken link outputs by renaming img output thing

7b44a8b

Signed-off-by: Owen-sz <owen@fyralabs.com>

update nixos version needed for genimage

da02148

Signed-off-by: Owen-sz <owen@fyralabs.com>

remexre reviewed Nov 20, 2025

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Owen-sz added 3 commits November 19, 2025 20:08

remove comments in opensbi.nix

1c4832e

Signed-off-by: Owen-sz <owen@fyralabs.com>

fix inputs formatting in flake.nix

e19c774

Signed-off-by: Owen-sz <owen@fyralabs.com>

update u-boot.txt

a1c305b

Signed-off-by: Owen-sz <owen@fyralabs.com>

remexre reviewed Dec 4, 2025

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remexre reviewed Dec 4, 2025

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src/image-milkv-jupiter/u-boot.txt

@@ -0,0 +1,20 @@

autoload=0

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needs testing on real hw; lmk when you did

Owen-sz and others added 4 commits December 3, 2025 20:13

Merge branch 'trunk' into owen/add-jupiter-dev-image

960032a

update partition type in jupiter genimage to u-boot-env

8b5a592

Signed-off-by: Owen-sz <owen@fyralabs.com>

formating

cc0e07d

Signed-off-by: Owen-sz <owen@fyralabs.com>

update nix flake

15e6ae8

Signed-off-by: Owen-sz <owen@fyralabs.com>

Merge remote-tracking branch 'origin/trunk' into owen/add-jupiter-dev…

2da927a

…-image

Owen-sz marked this pull request as draft February 13, 2026 07:21

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add: initial support for Milk-V Jupiter/SpacemiT K1#56

add: initial support for Milk-V Jupiter/SpacemiT K1#56
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