STM32MP157F-DK2: No console output and unable to boot after migrating from Kernel 5.4 to 5.15.118

[gauravpathak]

Hi,
I am in the process of migrating from Yocto Dunfell to STM kirkstone and using layers from oe-manifest/default.xml at kirkstone · STMicroelectronics/oe-manifest (github.com).

Also, I am using a modified Flashlayout tsv file:

#Opt Id Name Type IP Offset Binary
- 0x01 fsbl-boot Binary none 0x0 arm-trusted-firmware/tf-a-stm32mp157f-dk2-serialboot.stm32
- 0x03 fip-boot FIP none 0x0 fip/fip-stm32mp157f-dk2-trusted.bin
P 0x04 fsbl1 Binary mmc0 0x00004400 arm-trusted-firmware/tf-a-stm32mp157f-dk2-sdcard.stm32
P 0x05 fsbl2 Binary mmc0 0x00044400 arm-trusted-firmware/tf-a-stm32mp157f-dk2-sdcard.stm32
P 0x06 metadata1 Binary mmc0 0x00084400 arm-trusted-firmware/metadata.bin
P 0x07 metadata2 Binary mmc0 0x000C4400 arm-trusted-firmware/metadata.bin
P 0x08 fip-a FIP mmc0 0x00104400 fip/fip-stm32mp157f-dk2-trusted.bin
P 0x12 rootfs FileSystem mmc0 0x05984400 image-stm32mp157f.ext4

 

I also have enabled `earlycon` in Linux Kernel configuration for debugging purpose.
I am able to make the Board boot up till U-Boot, where Linux Kernel is getting loaded and is printing early kernel initialization debug messages but after the console getting initialized which is somehow got changed from ttySTM0 to ttySTM3, kernel is not printing anything.
I was expecting that Kernel should print some error messages where it is unable to find root dev or init program, but it is not printing anything at all and board gets reset after few seconds.
Please see attached boot log for reference.

PS: I am using initramfs bundled in a FIT image

 

[Olivier GALLIEN]

Hi @gauravpathak 

This post has been escalated to the ST Online Support Team for additional assistance. 

We'll contact you directly.

Olivier 

[gauravpathak]

Hi @Olivier GALLIEN 
I would also like to know the correct usage of INITRAMFS_IMAGE_BUNDLE variable in openembedded-core kernel-fitimage.bbclass
If I set it to 1, like INITRAMFS_IMAGE_BUNDLE = "1", I am getting 

| install: cannot stat 'arch/arm/boot/fitImage': No such file or directory

but if I set it to 0 (zero), like INITRAMFS_IMAGE_BUNDLE = "0"
the initrams image bundle doesn't get created and board doesn't boot.

To me it seems this is the root cause of the issue, but I am unsure how to resolve it.

[Billy OWEN]

Hi @gauravpathak 

 

This post has been escalated to the ST Online Support Team for additional assistance. 

 

I am contacting you directly now.

 

Regards,

Billy