Re: RZG2L and DTB blob from TF-A

[Mathieu Othacehe <othacehe@gnu.org>]

Hey,

> Also, you need a patch to identify the device and pass it as blob
> to the mainline u-boot
>
> On TF-A:
> .ep_info.args.arg1 = (uintptr_t)fdt_blob,
>
> Also you should fill the memory blob(fdt_blob).
>
> Hope you can take over from here.

Thanks Marek and Biju. The current state is still that people will take
the forked Renesas TF-A, the mainline U-Boot with the
renesas_rzg2l_smarc_defconfig configuration and expect things to work
out of the box.

Currently, before figuring out that the TF-A needs to be patched
manually, U-Boot is just crashing without outputing anything, which is
painful to debug.

As the only RZG2L supported by U-Boot is the r9a07g044l2-smarc, and we
are not receiving any blob from the TF-A, I think it is fair to assume
that we are booting from the platform we are compiling U-Boot for.

I have proposed a patch here:
https://lists.denx.de/pipermail/u-boot/2025-September/598712.html

Thanks,

Mathieu