Tool/software:
How to enable Falcon Boot Mode on J784S4?
Boot Flow:
R5 SPL -> ATF -> OPTEE -> U-BOOT -> Kernel
This boot flow has already been used for the J7200 and explained in this thread: [FAQ] DRA821: SPL BOOT without A72 SPL on J7200 on 10.1 SDK - Processors forum - Processors - TI E2E support forums
Can you provide the patch file for the J784S4?
Regards,
Bruce