i.MX 8MPlus How to configure DDR and flash memory to secure and nonsecure worlds

[Na-veen]

Hi,

As mentioned, i am working on i.MX8MP and trying to configure memory regions to secure and nonsecure worlds separatly so that normal world can not access secure world memory region. I know this can be achieved by configuring the NS bit, but how do we set the NS bit for each peripheral/device.

TIA,

[Yuri]

@Na-veen 
Hello,

   for i.MX8 both Linux kernel and U-boot operate in Normal World,
the ATF load them. So, please refer to ATF codes.

https://source.codeaurora.org/external/imx/imx-atf

Regards,
Yuri.