Issue booting on custom board

[MBeli.1]

I have board based on MB1277 design but on my custom board I'm getting this issue:

NOTICE:  CPU: STM32MP157AAC Rev.B
NOTICE:  Model: STMicroelectronics STM32MP157C eval daughter on eval mother
INFO:    Reset reason (0x15):
INFO:      Power-on Reset (rst_por)
INFO:    PMIC version = 0x21
INFO:    FCONF: Reading TB_FW firmware configuration file from: 0x2ffe3000
INFO:    FCONF: Reading firmware configuration information for: stm32mp_io
INFO:    Using SDMMC
INFO:      Instance 1
INFO:    Boot used partition fsbl1
ERROR:   stm32_sdmmc2_send_cmd_req: timeout 10ms (cmd = 0,status = 2000)
WARNING:  CMD0, Retry: 1, Error: -60
ERROR:   stm32_sdmmc2_send_cmd_req: timeout 10ms (cmd = 0,status = 2000)
WARNING:  CMD0, Retry: 2, Error: -60
ERROR:   stm32_sdmmc2_send_cmd_req: timeout 10ms (cmd = 0,status = 2000)
WARNING:  CMD0, Retry: 3, Error: -60
ERROR:   SDMMC1 init failed
PANIC at PC : 0x2ffeb033
 
Exception mode=0x00000016 at: 0x2ffeb033

Any ideas what can cause that? It's booting from SDcard.

[Olivier GALLIEN]

Hi @MBeli.1​ ,

>> I have board based on MB1277

I supposed you mean MB1272 ( aka DK ) right ?

I suggest you to have a look to https://community.st.com/s/article/FAQ-STM32MP1-bring-up-troubleshooting-guide in case it trigs anything.

At this stage first think to look at, is your TF-A Device Tree

How did you generate it ?

Olivier

[MBeli.1]

Yes sorry for typo.

TF-A is generated by yocto using: https://wiki.st.com/stm32mpu/wiki/STM32MP1_Distribution_Package#Building_the_OpenSTLinux_distribution

I'll check page you shared with me. Thanks.

[Olivier GALLIEN]

Well, TF-A Device Tree supposed to be an input of the build .. not an output.

I may understand you're trying to boot your custom board with the default ST delivery for a DK board ?

But in this case your design really need to be equivalent! ( and it's may not be the case )

Olivier

[MBeli.1]

Yes basically it should be same some peripherals are removed.

[Olivier GALLIEN]

I see an obvious error around SDMMC.. probably worth to double check this area.

You said "booting from SDCard" .. How did you load it ? With Cubeprogrammer ?

[MBeli.1]

Flashed using this : https://wiki.st.com/stm32mpu/wiki/How_to_populate_the_SD_card_with_dd_command

[Olivier GALLIEN]

Hi @MBeli.1​ ,

We noticed this trace in your log :

NOTICE:  Model: STMicroelectronics STM32MP157C eval daughter on eval mother

Which tend to make us think you are using a BSP for EVAL where you mention a design similar to MB1272 + 157AAC ( no secure feature ) .. which is equivalent to DK1 board.

What TSV did you use as parameter of ./create_sdcard_from_flashlayout.sh ?

Olivier