[PATCH 05/12] arm: Support running U-Boot as a coreboot payload on ARM64

[Stephen Boyd]

Quoting Tom Rini (2025-02-20 17:07:11)
> On Thu, Feb 20, 2025 at 12:58:47PM -0800, Stephen Boyd wrote:
>
> > Add a 'coreboot' cpu to armv8 that looks for the coreboot table near the
> > top of the 4G address space.
> >
> > Signed-off-by: Stephen Boyd <swboyd at chromium.org>
> > ---
> >  arch/arm/Kconfig                     |  2 ++
>
> We can't really ask SYS_COREBOOT in two places, as unlike the kernel
> everyone always parses arch/*/Kconfig, so we should move
> arch/x86/cpu/coreboot/Kconfig to say arch/Kconfig.coreboot and do
> something like:
> config SYS_COREBOOT
>         bool "Support for booting u-boot as a coreboot payload" if ARM64
>         depends on ARM64 || VENDOR_COREBOOT
>         default y if VENDOR_COREBOOT

Ok, thanks. I'll do that.

>
> And then any of the sub-options that are imply'd by the existing stanza
> in the x86 file aren't applicable to ARM64 they can be "... if X86".
>
> As similar to the work to make EFI payload be a more generic option
> rather than x86 only, this too needs some thought to be easily
> expandable to cover the ARM case today and I'll assume RISC-V at some
> point in the future.
>

Do you have a pointer to that EFI work?