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

nandojve · 2025-01-17T18:35:38Z

This PR is intent to continue the work started at #37686. It rewrite the original work to be compatible with Zephyr 4.1.

This is the first PR of a series, which includes:

Add BouffaloLab vendor
Add BL-60x SoC.
Pinctrl
Serial
bl604e_iot_dvk (development kit) - It can only be obtained directly with Bouffalo Lab
* Add bfflash runner to easy flash

This is an split of #78795

RFC of reference: #83663

zephyrbot · 2025-01-17T18:36:45Z

The following west manifest projects have changed revision in this Pull Request:

Name	Old Revision	New Revision	Diff
hal_bouffalolab 🆕	N/A (Added)	zephyrproject-rtos/hal_bouffalolab@`c6c44b8` (`main`)	N/A

⛔ DNM label due to: 1 added project

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

dts/riscv/bouffalolab/bl60x.dtsi

modules/hal_bouffalolab/CMakeLists.txt

soc/bouffalolab/Kconfig.soc

soc/bouffalolab/bl60x/soc.c

modules/hal_bouffalolab/include/bflb_hbn.h

boards/bouffalolab/bl60x/bl604e_iot_dvk/bl604e_iot_dvk.dts

modules/hal_bouffalolab/include/bflb_pinctrl.h

modules/hal_bouffalolab/CMakeLists.txt

profound1987 · 2025-02-24T01:33:40Z

Hi Nandovje
Bouffalo Team is also doing some porting work on zephyr and using Bouffalo SDK' lhal https://github.com/bouffalolab/bouffalo_sdk/tree/master/drivers/lhal and the lhal driver will be Long-Term Supported for peripherals' driver. from the code, it seems that the driver is based on std driver(from IOT SDK?) How about having a discussion on this. Thanks.

nandojve · 2025-02-24T07:41:07Z

Hi Nandovje Bouffalo Team is also doing some porting work on zephyr and using Bouffalo SDK' lhal https://github.com/bouffalolab/bouffalo_sdk/tree/master/drivers/lhal and the lhal driver will be Long-Term Supported for peripherals' driver. from the code, it seems that the driver is based on std driver(from IOT SDK?)

Hi @profound1987 ,

Nice to talk with you again : )

Is the lhal a result from bouffalolab/bouffalo_sdk#14 request ?

We have a RFC #83663 that gives some directions about how we would like proceed. This is the first step to add Bouffalo Lab vendor in Zephyr mainline. Last week we got green light to have the hal_bouffalolab and we are waiting the hal folder be offered to us to commit the initial version. Our plan is after a few rounds complete migrate from original sdk 1.4.5.

How about having a discussion on this. Thanks.

We are always open to talk. Send me pvt email to us schedule a meeting.

profound1987 · 2025-02-25T04:53:33Z

Hi @nandojve
Boffalo is very grateful for the work you have done. The lhal layer adopts the ideas we previously discussed to consolidate drivers for common IP, while the soc directory contains chip-specific components such as clocks and low-power features. In other words, lhal simultaneously supports the 602/702/616 series. The reason we plan to use lhal is that once it’s adapted in Zephyr’s drivers, enabling Zephyr to support the 602/702/616 series becomes a very straightforward task. Morever, we are also developing new chips and they are also based on lhal.
├── lhal
│   ├── CHANGELOG.md
│   ├── CMakeLists.txt
│   ├── config
│   ├── include
│   └── src
├── rfparam
│   ├── CMakeLists.txt
│   ├── Inc
│   ├── README.md
│   ├── Src
│   └── bouffalo.mk
├── soc
│   ├── bl602
│   ├── bl616
│   ├── bl702
│   ├── bl702l
│   └── bl808

I notice that the driver that you are using is https://github.com/bouffalolab/bouffalo_sdk/tree/release_v1.4.5, it's out of date for long time, we really sorry for that we have not update bouffalo sdk release, the current code on master branch is based on lhal, you can take a look. I will also do a release on bouffalo sdk.

VynDragon · 2025-02-25T07:39:43Z

Hello @profound1987 , please refer to the RFC at #83663 for further discussions. Here is the first PR of many and not the place to discuss general Bouffalolab support. There is also a brand new vendor channel in the Zephyr discord if you want to discuss this more instantly. Further Details (and answers to your message) will be dispatched on the RFC at #83663.

tejlmand

some early observations.

modules/hal_bouffalolab/CMakeLists.txt

tejlmand · 2025-03-13T10:04:18Z

modules/hal_bouffalolab/CMakeLists.txt

+    BFLB_USE_CUSTOM_LD_SECTIONS
+  )
+
+  set(bflb_soc         bl602)


just an observation, but this decouples the passed to the hal from the SoC described by the soc.yml and in Kconfig, which in future can make it harder to find / handle if support for other bouffalo SoCs is introduced.

Not a request to change now, but please consider if this could be improved if addressing other comments.

Noted. It will be improved soon on other PR.

tejlmand · 2025-03-13T10:05:41Z

modules/hal_bouffalolab/include/bl_ld_sections.h

I don't see this header being included anywhere.

Can you please provide some more info ?

This is defined to replace the default sections inside the drivers functions inside HAL. There is an improvement planned to remove all this.

https://github.com/zephyrproject-rtos/hal_bouffalolab/blob/c6c44b879503d990dfba643c212b606cee414faa/common/misc/compiler/common.h#L43-L65

nandojve · 2025-04-17T14:17:37Z

Hi @mbolivar and @gmarull ,

Could you revist the PR? I drop the blflash tool support and would like a review from the assignee.
I would like to know what is missing to introduce this vendor.

Needs rebase due to conflict with pinctrl.

Add initial version that uses bouffalo_sdk 1.4.5. Signed-off-by: Gerson Fernando Budke <[email protected]>

Add necessary bflb prefix to be used on devicetree bindings and identify the board vendor. Signed-off-by: Gerson Fernando Budke <[email protected]>

Introduce Bouffalo Lab vendor with BL60x cpu. Signed-off-by: Gerson Fernando Budke <[email protected]>

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

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

Introduce Bouffalo Lab platform. Signed-off-by: Gerson Fernando Budke <[email protected]>

nandojve · 2025-04-23T09:18:27Z

The manifest is up to date but BOT is not removing the DNM label (manifest)

@nandojve

Just one minor, but IMO blocking, nit in the west flasher, otherwise this looks great to me! Awesome stuff @nandojve , amazing persistence working on this

The content was removed. A convenience tool will be introduced later.

nandojve · 2025-04-23T09:22:53Z

Hi @tejlmand,

Could you revisit to confirm that your concerns were addressed.

kartben · 2025-04-23T09:36:29Z

Added DNM to give @mbolivar time to respond as per our processes.

zephyrbot added manifest manifest-hal_bouffalolab DNM This PR should not be merged (Do Not Merge) labels Jan 17, 2025

This was referenced Jan 17, 2025

Introduce Bouffalo Lab SoC's #78795

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HAL module request: hal_bouffalolab #84174

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[RFC] Bouffalolab Vendor Support #83663

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boards: peregrine: Introduce sam4l_wm400_cape #83310

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nandojve force-pushed the bflb/bflb_upstream_v1 branch from c0018bb to b53eb5d Compare March 12, 2025 17:14

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zephyrbot added area: Process area: UART Universal Asynchronous Receiver-Transmitter area: Devicetree area: West West utility labels Mar 23, 2025

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nandojve force-pushed the bflb/bflb_upstream_v1 branch from b0dc826 to c85ae38 Compare April 17, 2025 14:15

nandojve added 7 commits April 17, 2025 16:18

west: Introduce hal bouffalo lab

df28d8f

Add initial version that uses bouffalo_sdk 1.4.5. Signed-off-by: Gerson Fernando Budke <[email protected]>

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

44b939a

Add necessary bflb prefix to be used on devicetree bindings and identify the board vendor. Signed-off-by: Gerson Fernando Budke <[email protected]>

dts: riscv: bouffalolab: Add bl60x series cpu

398fedd

Introduce Bouffalo Lab vendor with BL60x cpu. Signed-off-by: Gerson Fernando Budke <[email protected]>

soc: riscv: bouffalolab: Add bl60x series cpu

ada9ce3

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

drivers: pinctrl: bouffalolab: Add bflb pinctrl driver

2187a32

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

drivers: serial: bouffalolab: Add bflb serial driver

35a401e

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]>

boards: riscv: Introduce bl604e_iot_dvk

2ce920b

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

nandojve force-pushed the bflb/bflb_upstream_v1 branch from c85ae38 to c27eefd Compare April 17, 2025 14:19

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github-actions bot assigned dcpleung Apr 17, 2025

MAINTAINERS.yml: Add Bouffalo Lab entries

2770da0

Introduce Bouffalo Lab platform. Signed-off-by: Gerson Fernando Budke <[email protected]>

nandojve force-pushed the bflb/bflb_upstream_v1 branch from ff960ed to 2770da0 Compare April 17, 2025 17:49

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

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

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

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

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