About AZaki.2

AZaki.2 · 2024-08-12

Hi, when trying the new ST BSP release base on linux kernel 6.1.82 on my stm32mp157f-dk2 I noticed that the legacy framebuffer support is not working anymore.this was working perfectly on the previous release with linux kernel 6.1.28.I didn't succeed...

AZaki.2 · 2023-03-27

Hello, I use Optee on a stm32mp157f-dk2 board, version is the and the corresponding BSP :optee-os 3.16.0-stm32mpu-boot v2021.10-stm32mpLinux v5.15-stm32mpAll my changes are committed and built using a yocto meta-layer : https://github.com/embetrix/m...

AZaki.2 · 2022-08-25

I have a custom board based on stm32mp157c which is working with arm-trusted-firmware version v2.2-stm32mp.I updated tf-a to version v2.4-stm32mp version keeping the same DTS file but the problem is that tf-a is starting and hangs at loading sp min a...

AZaki.2 · 2022-08-05

hello I have build tf-a and u-boot and signed them as specified in the st wiki documentation:But I get the following error when booting up:NOTICE: CPU: STM32MP157FAC Rev.Z NOTICE: Model: STMicroelectronics STM32MP157F-DK2 Discovery Board NOTICE: B...

AZaki.2 · 2024-08-16

I did some more test and it looks like the framebuffer isn't working reliably anymore.I don't see in the dmesg any errors.I did multiple reboot/reset of the stm32mp157f-dk2 and sometimes it's not working (system is up but no frambuffer , somtimes it ...

AZaki.2 · 2024-08-12

@Erwan SZYMANSKI thanks it worked  I need to pinpoint to the Kernel config that made the difference.

AZaki.2 · 2024-08-12

I tried it yesterday already by reverting this commit: https://github.com/STMicroelectronics/linux/commit/c1c0bc827fabea1c73b7dee71b90e7cdef5c9290 But it didn't change anything.

AZaki.2 · 2024-08-12

here are some noticeable traces differences between : Kernel 6.1.28:root@stm32mp157f-dk2:~# dmesg | grep frame[ 0.796661] simple-framebuffer ddc00000.framebuffer: framebuffer at 0xddc00000, 0xbb800 bytes[ 0.796679] simple-framebuffer ddc00000.framebu...

AZaki.2 · 2024-08-12

hello, a simple test is:$ dd if=/dev/urandom of=/dev/fb0you should get some nice noise image on the screen if framebuffer support is working

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Re: stm32mp157 framebuffer support in new ST BS Release