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zephyr/boards: Update and fix Bouffalolab boards. #19176

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VynDragon:fix_bflb
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zephyr/boards: Update and fix Bouffalolab boards. #19176
VynDragon wants to merge 2 commits into
micropython:masterfrom
VynDragon:fix_bflb

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@VynDragon VynDragon commented May 3, 2026

Summary

follow up to #18511
Adds new feature, fix UART behavign strangely.

Also adds cache handling for cache_management and the new HAL hook in emitglue.

Testing

Ran on board

Generative AI

No.

dpgeorge
dpgeorge approved these changes May 4, 2026
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Looks good (although I did not test it).

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VynDragon commented May 4, 2026 •
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I also went and tried rp2350 both m33 and hazard3 (that works correctly now so config can be added) with this code so doesnt look like the cache code broke anything

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VynDragon commented May 7, 2026 •
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BLE has just been merged for some of those, please wait a bit so I can add that before merging.

@VynDragon VynDragon force-pushed the fix_bflb branch 2 times, most recently from 9eaf8b6 to 9274829 Compare May 8, 2026 06:25
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zephyr: Provide MP_HAL_CLEAN_DCACHE.
c729da9 
Provide function to clean dcache in emitglue.

Signed-off-by: Vdragon <mail@massdriver.space>
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VynDragon commented May 8, 2026

Alright updated, it requires #19157

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github-actions Bot commented May 8, 2026

Code size report:

Reference:  esp8266: Remove obsolete --verify option from ESP8266. [e496000]
Comparison: zephyr/boards: Update and fix Bouffalolab boards. [merge of 9274829]
  mpy-cross:    +0 +0.000% 
   bare-arm:    +0 +0.000% 
minimal x86:    +0 +0.000% 
   unix x64:    +0 +0.000% standard
      stm32:    +0 +0.000% PYBV10
      esp32:    +0 +0.000% ESP32_GENERIC
     mimxrt:    +0 +0.000% TEENSY40
        rp2:    +0 +0.000% RPI_PICO_W
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS
  qemu rv32:    +0 +0.000% VIRT_RV32

@VynDragon
zephyr/boards: Update and fix Bouffalolab boards.
3791ec8 
Fix UART missing character at output, enable newly supported features.

Signed-off-by: Vdragon <mail@massdriver.space>
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VynDragon commented May 9, 2026 •
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Also added wb2 ble since that was merged yesterday.

Still need a fix PR upstream relevant to FP though.

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