[PATCH 4/6] arm: mach-k3: am62: Fixup TF-A/OP-TEE reserved-memory node in FDT

[Bryan Brattlof]

On February 14, 2024 thus sayeth Andrew Davis:
> The address we load TF-A and OP-TEE to is configurable by Kconfig
> CONFIG_K3_{ATF,OPTEE}_LOAD_ADDR, but the DT nodes reserving this memory
> are often statically defined. As these binaries are dynamically loadable,
> and in the case of OP-TEE may not even be loaded at all, hard-coding these
> addresses is not a hardware description, but rather a configuration.
> 
> If the address that U-Boot loaded TF-A or OP-TEE does not match the
> address in hard-coded in DT, then fix that node address. This also handles
> the case when no reserved memory for these is provided by DT, which is
> more correct as explained above.
> 
> Add this fixup function, and enable it for AM62.
> 
> Signed-off-by: Andrew Davis <afd at ti.com>

Acked-by: Bryan Brattlof <bb at ti.com>

Does this mean we need to no-map these regions in the MMU as well? Right 
now it's just statically defined. I was looking into trying to read the 
reserved-memory{} node to see if we could dynamically build the MMU 
config but that would have to happen after this step right?

~Bryan