Boot error from SD Card on my original board

[HMasu.1]

I want to boot my original board which STM32MP151CAA3 MPU is mounted on.

​However, the following error occurs in the boot process and the process fail.

mmc0: error -22 whilst initialising SD card

I suspect that the description of User Code Section for sdmmc1(SD card) node in the device tree cause an error, but I have not known the cause of the error.

What could be the cause of the error?

I attach boot error log and original device tree sources.

​Would you be able to lend your expertise.

Best regards.

H. Masuda

[Tesla DeLorean]

Sorry, what board?

An ST supplied board, which one, or a custom board you designed and built?​

[HMasu.1]

Hi @Community member​ 

Thank you for your answer.

I'm trying to boot a custom board that I designed and build.

​STM32MP151CAA3 MPU is mounted on this board.

I suspect that the description of User Code Section for sdmmc1(SD card) node in the device tree cause an error.

But I do not know what I need to modify from the error message.

From this error message, are there any possible causes of the error?

I would like some hints what I should investigate further about this problem.

Best regards.

H. Masuda

[HMasu.1]

Hi @clive1 (NFA Crew) (Community Member)​ 

Thank you for your answer.

I'm trying to boot a custom board that I designed and build.

​STM32MP151CAA3 MPU is mounted on this board.

I suspect that the description of User Code Section for sdmmc1(SD card) node in the device tree cause an error.

But I do not know what I need to modify from the error message.

From this error message, are there any possible causes of the error?

I would like some hints what I should investigate further about this problem.

Best regards.

H. Masuda

[HMasu.1]

Is there anything I should try to solve this problem?

If there are any hints, please let me know.

Best regards.

H. Masuda