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STM32MP1 bRIGUP watchdog trip

Bkell.1
Associate II

HI.

I have a custom board that basically identical to the PDK

We Made 2 Boards for test.

One starts up OK

The Other fails

Section of Console below

The section of interest is the line

INFO:  CPU 0 IT Watchdog 2 and so

The Same SDCard in both.

Must be a hardware issue but what?

Any Help appreciated

Found /mmc0_extlinux/stm32mp157c-dk2_extlinux.conf

Retrieving file: /mmc0_extlinux/stm32mp157c-dk2_extlinux.conf

706 bytes read in 39 ms (17.6 KiB/s)

Retrieving file: /splash.bmp

18244 bytes read in 39 ms (456.1 KiB/s)

Select the boot mode

1:   OpenSTLinux

2:   stm32mp157c-dk2-a7-examples

3:   stm32mp157c-dk2-m4-examples

Enter choice: 1:    OpenSTLinux

Retrieving file: /uInitrd

INFO:  CPU 0 IT Watchdog 2

INFO:  CPU : 0

INFO:  sp_usr  : 0x0

INFO:  lr_usr  : 0x0

INFO:  spsr_irq : 0x0

INFO:  sp_irq  : 0x0

INFO:  lr_irq  : 0x0

INFO:  spsr_fiq : 0x0

INFO:  sp_fiq  : 0x0

INFO:  lr_fiq  : 0x0

INFO:  spsr_svc : 0x0

INFO:  sp_svc  : 0xddae1220

INFO:  lr_svc  : 0xdfc8d873

INFO:  spsr_abt : 0x0

INFO:  sp_abt  : 0x0

INFO:  lr_abt  : 0x0

INFO:  spsr_und : 0x400001db

INFO:  sp_und  : 0x0

INFO:  lr_und  : 0xdfc3a008

INFO:  spsr_mon : 0x400001db

INFO:  sp_mon : 0x2ffd8a80

INFO:  lr_mon : 0xdfc3a004

INFO:  scr : 0x225

INFO:  pmcr : 0x41072000

3 REPLIES 3
Kevin HUBER
ST Employee

Hi @Bkell.1​ ,

If the two custom boards are identical and that you are using the same SD Card for both, you are right it looks like an hardware issue.

Please can you enable the debug traces of U-boot for all the files that can be interesting (especially in those where the behavior is different) : https://wiki.st.com/stm32mpu/wiki/U-Boot_-_How_to_debug

Then please provide us the complete logs of the two boards (the one that works and the other). We will look at them.

Regards,

Kevin

In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
Kevin HUBER
ST Employee

Hello @Bkell.1​ ,

Do you still need help on this issue?

Regards,

Kevin

In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
Sorry I Have not been able to find the time to get the debug.
Hopefully soon
Thanks