How to perform secure boot function on M7 core bootloader and A53

[lion_6]

What should I do to achieve secure boot of M7 core bootloader and A53 core simultaneously? At present, I have completed the secure boot configuration of the M7 core bootlaoder by referring to "AN13750" and "S32G_Secure-boot_20240125". How can I connect it with A53?

[chenyin_h]

Hello, @lion_6 

Thanks for your post.

From the description, I assume that you have enabled secure boot on the bootloader, right? 

Then, the bootloader will fetch the M core and A core application from the QSPI, in order to implement secure boot, the bootloader may have to verify the authenticity of the two images loaded, you may need to implement the corresponding functions yourself from my understanding.

BR

Chenyin