Dear ST Team,We are working on enabling and running the Cortex-M33 core on the STM32MP257F-DK board using U-Boot v2023.10-stm32mp-r2.https://wiki.st.com/stm32mpu/wiki/How_to_start_the_Cortex-M_coprocessor_from_U-BootDespite following the procedure described above link from the ST wiki, we are unable to successfully load or start the M33 firmware from U-Boot.The rproc load command returns load remote processor failed. Please refer the screenshot for the error message. rproc start,rproc stop,rproc ping returns Operation Failed with error (-19)rproc list command returns no output.We are facing issues while accessing certain registers using the md command in U-Boot.Specifically, attempting to read RAMCFG registers causes U-Boot to jump into its error handler.Thanks in advanceBest RegardsAkshitha Pattem

Associate III

Question

STM32MP257F-DK: can't load or start M33 firmware from U-Boot.

Dear ST Team,

We are working on enabling and running the Cortex-M33 core on the STM32MP257F-DK board using U-Boot v2023.10-stm32mp-r2.

Despite following the procedure described above link from the ST wiki, we are unable to successfully load or start the M33 firmware from U-Boot.

The rproc load command returns load remote processor failed. Please refer the screenshot for the error message.

rproc start,rproc stop,rproc ping returns Operation Failed with error (-19)
rproc list command returns no output.
We are facing issues while accessing certain registers using the md command in U-Boot.Specifically, attempting to read RAMCFG registers causes U-Boot to jump into its error handler.

Thanks in advance

Best Regards

Akshitha Pattem