drivers: syscon: bflb efuses #89108
drivers: syscon: bflb efuses #89108
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The following west manifest projects have changed revision in this Pull Request:
✅ All manifest checks OK Note: This message is automatically posted and updated by the Manifest GitHub Action. |
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That is one of the main questions yea, what alternatives is there? |
If you are just reading the eFUSE settings, perhaps the syscon API is better suited? |
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It looks like it would fit yea... Is there any example driver for it that doesnt just read memory actually? Or would that be a first driver for a syscon interface? |
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needs rebase |
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Rebased and made to use syscon. |
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platform: bouffalolab
area: RISCV
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Pull Request Overview
This PR adds support for Bouffalolab efuse access via the syscon API.
- Updates the West manifest to use a pull request revision for hal_bouffalolab.
- Adds new Kconfig and DTS nodes for the efuse driver and corresponding binding definitions.
- Introduces the syscon_bflb_efuse.c driver file with the necessary functions for efuse access.
Reviewed Changes
Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| west.yml | Updates the hal_bouffalolab revision to a pull request branch revision. |
| soc/bflb/bl60x/Kconfig | Adds required select statements and enables SYSCON for Bouffalolab SOC. |
| dts/riscv/bflb/bl60x.dtsi | Introduces the efuse node with reg, status, and size properties. |
| dts/bindings/syscon/bflb,efuse.yaml | Provides the binding specification for the efuse driver. |
| drivers/syscon/syscon_bflb_efuse.c | Implements the efuse driver with functions for clock configuration and efuse read/cache. |
| drivers/syscon/Kconfig.bflb_efuse | Defines the new Kconfig entry for the Bouffalolab efuse driver. |
| drivers/syscon/Kconfig | Includes the new efuse Kconfig file. |
| drivers/syscon/CMakeLists.txt | Adds the efuse driver source file based on configuration. |
dts/bindings/syscon/bflb,efuse.yaml
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| # Copyright (c) 2024-2025 MASSDRIVER EI (massdriver.space) | ||
| # SPDX-License-Identifier: Apache-2.0 | ||
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| description: BouffaloLab Efuse Driver |
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Sorry just spotted this. Bindings shouldn't be talking about "drivers"
https://docs.kernel.org/devicetree/bindings/writing-bindings.html#overall-design
| description: BouffaloLab Efuse Driver | |
| description: BouffaloLab Efuse |
Thanks!
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This sets revision to the one with vendor headers from final hal version Signed-off-by: Camille BAUD <[email protected]>
This introduces a driver used to access bouffalolab efuses via syscon API Signed-off-by: Camille BAUD <[email protected]>
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This enables the driver by default, it will be needed at init in the future Signed-off-by: Camille BAUD <[email protected]>
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This introduces bflb efuse access via syscon api.
This is not used at the moment but will be in the next steps of integration (for clock_control and things like DAC and ADC).