Load/Start Cortex-M4 from TF-A or uboot ?

[sja]

Is it possible to Load/Start the Cortex-M4 from TF-A or uboot ?

For our use case we want RTOS in Cortex-M4 running as soon as possible.

Well before linux finishes booting.

[Olivier GALLIEN]

Hi @sja​ 

Please refer to online user guide documentation here :

https://wiki.st.com/stm32mpu/wiki/Main_Page

And for to answer your specific question :

https://wiki.st.com/stm32mpu/wiki/How_to_start_the_coprocessor_from_the_bootloader

Hope it help

Olivier

[PDELA.1 · Accepted solution]

Possible in U-Boot, with remoterproc command, not in TF-A

https://wiki.st.com/stm32mpu/wiki/How_to_start_the_coprocessor_from_the_bootloader