Hi Menna,

On 7/12/23 15:36, Menna Mahmoud wrote:
> and stuck after this step,  after compiling the kernel you mean after this
> step:` make -j `nproc` `, right?
> because I have done this step but couldn't find .dtb file..

If you build the kernel as per https://sdk.morello-project.org/docs/linux/
you will find both the files.

The kernel to work *needs* to have you OPTEE patch on top.

Hope this is clear.

--
Regards,
Vincenzo