RISC-V FIT image type

[Simon Glass]

Hi Bin,

On Fri, 31 Mar 2023 at 19:22, Bin Meng <bmeng.cn at gmail.com> wrote:
>
> On Fri, Mar 31, 2023 at 5:36 AM Simon Glass <sjg at chromium.org> wrote:
> >
> > Hi,
> >
> > I notice that in image.h we have IH_ARCH_RISCV but no mention of
> > IH_ARCH_RISCV64. Should we not have two separate image types, as we do
> > with ARM and x86? Otherwise, how would a loader know the word size of
> > the target machine?
>
> I think that's because in RISC-V it is always the same bit-width
> U-Boot to load the same bit-width kernel. There is no support of
> 32-bit U-Boot to load 64-bit kernel and vice versa.

Yes, understood, but in this case we can't be sure that it is possible
load a FIT, e.g. if someone makes a mistake.

Would it be OK to create a new "riscv64" type? This has come up in the
universal payload discussions.

Regards,
Simon