riscv: Introduce Bouffalo Lab SoC and dt_bl10_devkit #37686

nandojve · 2021-08-14T00:43:23Z

Introduces Bouffalo Lab BL-602 SoC.

Add itcm/dtcm linker script requirements for riscv, arch: riscv: common: linker: Add itcm & dtcm sections #37421
Add devicetree requirements related to SiFive E24 core. dts: bindings: cpu: Add riscv cpu bindings #37420
Add SoC support
Add minimal serial driver
Add dt_bl10_devkit board, similar to Pine64 nutcracker
Add blflash runner to flash board by serial port at usb serial converter

This requires an external vendor hal. WIP at hal_bouffalolab.

github-actions · 2021-08-14T00:44:11Z

The following west manifest projects have been modified in this Pull Request:

Name	Old Revision	New Revision	Diff
bl_mcu_sdk	N/A	nandojve/bouffalo_sdk@`f33ca05` (zephyr)	N/A

Note: This message is automatically posted and updated by the Manifest GitHub Action.

nandojve · 2021-10-26T19:33:23Z

Hi @gmarull ,

I would like know your thoughts in the pinctrl implementation.

gmarull

The pinctrl implementation LGTM, good job. I have a few comments/suggestions.

drivers/pinctrl/pinctrl_bflb.c

include/dt-bindings/pinctrl/bflb-pinctrl.h

dts/bindings/pinctrl/bflb,bl-pinctrl.yaml

drivers/serial/uart_bflb.c

boards/riscv/dt_bl10_devkit/dt_bl10_devkit.dts

Add Bouffalo Lab pinctrl driver. Signed-off-by: Gerson Fernando Budke <[email protected]>

Add Bouffalo Lab serial driver. The driver uses pinctrl to configure pins and have power management capabilities. Signed-off-by: Gerson Fernando Budke <[email protected]>

Add Bouffalo Lab ISP console flash runner. This tool enable bootloader to flash devices using serial port. The blflash Rust tool can be found at https://github.com/spacemeowx2/blflash Signed-off-by: Gerson Fernando Budke <[email protected]>

Add initial version. Signed-off-by: Gerson Fernando Budke <[email protected]>

Add myself as codeowners for Bouffalo Lab related files. Signed-off-by: Gerson Fernando Budke <[email protected]>

mbolivar-nordic · 2021-11-09T18:06:50Z

scripts/west_commands/runners/blflash.py

+                            help='path to blflash, default is blflash')
+        parser.add_argument('--port', default=DEFAULT_BLFLASH_PORT,
+                            help='serial port to use, default is ' +
+                            str(DEFAULT_BLFLASH_PORT))


No need to call str. This is already a string.

mbolivar-nordic · 2021-11-09T18:11:30Z

dts/bindings/gpio/bflb,bl-gpio.yaml

+    "#gpio-cells":
+      const: 0


Are you sure? How can you implement the GPIO API without pin and flags cells here?

Please add some more detailed comments explaining this, at least to the commit log, when taking this out of draft.

mbolivar-nordic · 2021-11-09T18:17:25Z

boards/riscv/dt_bl10_devkit/dt_bl10_devkit.dts

+		// Dummy entry
+		spi-max-frequency = <0>;


What's going on here? This does not look correct. Is it just for draft?

Hi @mbolivar-nordic , all this PR still marked as draft. I only asked to @gmarull some tips about pinctrl because it is a new API and this SoC have some odd parts.

WilliamGFish · 2021-12-28T21:54:53Z

Hi, how are things going with this addition? I am interested in seeing the potential of this MPU.

Billy..

ExplodingWaffle · 2021-12-28T22:18:30Z

Hi, how are things going with this addition? I am interested in seeing the potential of this MPU.

Billy..

was literally JUST going to write the same thing. weird
+1 anyway. think these are becoming more available (bl702 too) which is nice

nandojve · 2021-12-29T12:17:04Z

Hi @WilliamGFish , @ExplodingWaffle ,

I hope I can resume late January with this MCU. BL-702 is similar and should work with minimal additions.

WilliamGFish · 2021-12-30T11:56:11Z

Interesting, I stumbled upon the BL702 via an odd tech article and was amazed that we've already got traction in the zephyr community. It would good to see Mesh and SPI working, the biggest problem will making it anything more than a PoC item without FCC type certification.

If you'd like I'll try to be some help where I can.

Billy..
PS I don't have any (yet)

WilliamGFish · 2022-01-15T12:20:15Z

Hi @WilliamGFish , @ExplodingWaffle ,

I hope I can resume late January with this MCU. BL-702 is similar and should work with minimal additions.

I have just been looking at this again and it appears that with minimal effort I could get the ESP-AT Wi-Fi modem driver to work with this SoC. That way it would be an easy install peripheral.

Billy..

github-actions · 2022-03-17T00:29:31Z

This pull request has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this pull request will automatically be closed in 14 days. Note, that you can always re-open a closed pull request at any time.

github-actions · 2022-05-17T00:30:00Z

This pull request has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this pull request will automatically be closed in 14 days. Note, that you can always re-open a closed pull request at any time.

russkel · 2023-01-28T10:40:28Z

I think this will be relevant with the Ox64 boards powered by BL808.

nandojve · 2023-01-28T12:50:41Z

I think this will be relevant with the Ox64 boards powered by BL808.

This code is made with https://github.com/bouffalolab/bl_mcu_sdk v1.4.5. It must be upgraded to use latest SDK from BL which support all CPU cores (BL808 inclusive). The other thing is that I didn't have enough time to proper make interrupt work and may require investigation. It is not clear to me why I got issues in this part. This means that you can't write code that depends on interrupts now.

Once above is updated/fixed code can go to upstream because drivers are well shaped. The other stuff related to mainstream is maintainability. It requires community effort to keep evolving and upgrading code. I don't mind coordinate but I can't assume another manufacturer BSP alone.

BR,
Gerson

russkel · 2023-01-28T23:34:33Z

It looks like BL moved to what they call lhal in v2.0 which is their API to peripherals across all their chips, but should make supporting future chips from BL pretty easy.

I am willing to spend some time on this but I am very green to all this.

nandojve · 2023-01-29T09:51:08Z

It looks like BL moved to what they call lhal in v2.0 which is their API to peripherals across all their chips, but should make supporting future chips from BL pretty easy.

I am willing to spend some time on this but I am very green to all this.

ping me PVT on Zephyr discord.

WallaceIT · 2023-01-29T15:00:23Z

Another interesting platform I'm starting to investigate is Sipeed M0S, based on BL616. I too can have some (limited, unfortunately) time to work on this!

WilliamGFish · 2023-01-30T10:19:53Z

I am not sure it would be of any help but it was suggested that the SiFive’s HiFive1 Board is based on the same RISC-V core. Not sure if that work aids in any porting efforts?

nandojve · 2023-01-30T12:03:24Z

Hi @WilliamGFish ,

In the case of BouffaloLab I think it is not possible. At least BL 60x/70x uses E24 SiFive's core but the newer SoC's switched to XuanTie-902/6/7 (LP/M/D) from T-Head.

github-actions bot added area: API Changes to public APIs area: Boards area: Devicetree area: Devicetree Binding PR modifies or adds a Device Tree binding area: Documentation area: RISCV RISCV Architecture (32-bit & 64-bit) area: Timer Timer manifest west manifest-bl_mcu_sdk labels Aug 14, 2021

nandojve force-pushed the bouffalo_zephyr branch from 744a4cf to cbdfa24 Compare August 15, 2021 03:00

nandojve mentioned this pull request Sep 26, 2021

dts: bindings: vendor-prefixes: Add Bouffalo Lab prefix #38850

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nandojve force-pushed the bouffalo_zephyr branch from cbdfa24 to 44ab8b1 Compare October 13, 2021 23:33

nandojve mentioned this pull request Oct 13, 2021

[feat][zephyr] Enable bl_mcu_sdk as zephyr module bouffalolab/bouffalo_sdk#18

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nandojve force-pushed the bouffalo_zephyr branch 3 times, most recently from 49d8a8c to 1232383 Compare October 14, 2021 02:56

nandojve mentioned this pull request Oct 19, 2021

scripts: runner: Introduce blflash runner #38851

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nandojve force-pushed the bouffalo_zephyr branch from 1232383 to d6044cc Compare October 20, 2021 03:17

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nandojve force-pushed the bouffalo_zephyr branch 3 times, most recently from 00e1188 to b97030a Compare October 26, 2021 01:23

nandojve requested a review from gmarull October 26, 2021 19:30

nandojve force-pushed the bouffalo_zephyr branch 2 times, most recently from 3096c35 to 23f0f3a Compare October 27, 2021 01:28

gmarull reviewed Oct 27, 2021

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nandojve force-pushed the bouffalo_zephyr branch from 23f0f3a to b3a5055 Compare October 27, 2021 22:52

nandojve force-pushed the bouffalo_zephyr branch from b3a5055 to 5245c14 Compare November 6, 2021 20:10

drivers: pinctrl: bouffalolab: Add bflb pinctrl driver

db422fd

Add Bouffalo Lab pinctrl driver. Signed-off-by: Gerson Fernando Budke <[email protected]>

nandojve force-pushed the bouffalo_zephyr branch from 5245c14 to 56032fc Compare November 6, 2021 23:43

nandojve added 4 commits November 6, 2021 20:54

drivers: serial: bouffalolab: Add bflb serial driver

3b68a0f

Add Bouffalo Lab serial driver. The driver uses pinctrl to configure pins and have power management capabilities. Signed-off-by: Gerson Fernando Budke <[email protected]>

scripts: runner: Introduce blflash runner

b18af6e

Add Bouffalo Lab ISP console flash runner. This tool enable bootloader to flash devices using serial port. The blflash Rust tool can be found at https://github.com/spacemeowx2/blflash Signed-off-by: Gerson Fernando Budke <[email protected]>

boards: riscv: Introduce dt_bl10_devkit

6bfee9c

Add initial version. Signed-off-by: Gerson Fernando Budke <[email protected]>

CODEOWNERS: Add nandojve for bouffalolab

6896bf9

Add myself as codeowners for Bouffalo Lab related files. Signed-off-by: Gerson Fernando Budke <[email protected]>

nandojve force-pushed the bouffalo_zephyr branch from 56032fc to 6896bf9 Compare November 6, 2021 23:54

mbolivar-nordic reviewed Nov 9, 2021

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gmarull mentioned this pull request Nov 30, 2021

Road from pinmux to pinctrl #39740

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github-actions bot closed this May 31, 2022

nandojve mentioned this pull request Sep 21, 2024

Introduce Bouffalo Lab SoC's #78795

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nandojve mentioned this pull request Jan 17, 2025

Introduce Bouffalo Lab SoC's [patch 1] #84173

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riscv: Introduce Bouffalo Lab SoC and dt_bl10_devkit #37686

riscv: Introduce Bouffalo Lab SoC and dt_bl10_devkit #37686

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