Re: [PATCH] arm64: dts: renesas: r8a78000: Describe all reserved memory

[Marek Vasut]

On 5/18/26 9:18 AM, Geert Uytterhoeven wrote:

Hello Geert,

> > +               /* TEE TZ DRAM. */
> > +               tee@8c400000 {
> > +                       reg = <0x0 0x8c400000 0x0 0x02000000>;
> > +                       no-map;
> > +               };
> > +        };
>
> Shouldn't these reservations be added by the bootloader stack, when
> passing the DTB to Linux?

They should be added by the bootloader stack components, TFA and TEE, 
but they do not generate those reservation nodes thus far. TFA I can fix 
up for 2.16 (2.15 is in code freeze now), optee-os will need upstreaming 
of all the outstanding patches first, and then this can be fixed too. 
This is all long term plan though. Short term plan, which also prevents 
issues with SDK TFA/TEE, is this reserved memory node.

--
Best regards,
Marek Vasut