I have the same pin mapping as above:
I programmed the OTP fuses as follows:
The problem is that even after flashing the eMMC with the TFA image as per the following procedure: https://u-boot.readthedocs.io/en/latest/board/st/stm32mp1.html#prepare-emmc
I still get nothing on the UART4 console.
We also put a scope on the SDMMC2_CK line and no clock is detected.
Does it mean the BootROM is not accessing the eMMC?
Am I missing something?
Solved! Go to Solution.
Hi @cfilipescu ,
there could be multiple causes:
Could you try using CubeProgrammer to flash TF-A using USB ?
and try to get the BootROM trace using https://wiki.st.com/stm32mpu/wiki/STM32MP15_ROM_trace_analyzer