2021-11-08 01:51 AM
We are using stm32mp157a_dk1. we want to know cortex_A7 core0 is in secure or non secure mode? How will come to know processor mode is in secure/non secure? If it is secure how to change it to non secure?
2021-11-08 04:55 AM
Hi,
this is very generic question, mostly related to Cortex-A7 and Linux implementation
For OpenSTLinux security aspects:
https://wiki.st.com/stm32mpu/wiki/Security_overview
https://wiki.st.com/stm32mpu/wiki/Boot_chain_overview#STM32MP15_boot_chain
For Cortex-A7, please have a look to ARM documentations:
https://developer.arm.com/documentation/ddi0406/latest
Regards.
2021-11-09 02:10 AM
I refereed all the documents but ,i didn't understand that's why i am asking.