[PATCH] riscv: Add a 64-bit image type

[Bin Meng]

On Mon, Apr 10, 2023 at 3:25 PM Rick Chen <rickchen36 at gmail.com> wrote:
>
> > From: Simon Glass <sjg at chromium.org>
> > Sent: Monday, April 03, 2023 4:28 AM
> > To: U-Boot Mailing List <u-boot at lists.denx.de>
> > Cc: Sean Anderson <seanga2 at gmail.com>; Bin Meng <bmeng.cn at gmail.com>; Rick Jian-Zhi Chen(陳建志) <rick at andestech.com>; Leo Yu-Chi Liang(梁育齊) <ycliang at andestech.com>; Simon Glass <sjg at chromium.org>; Andre Przywara <andre.przywara at arm.com>; Marc Kleine-Budde <mkl at pengutronix.de>; SESA644425 <giojahermann at gmail.com>; Samuel Holland <samuel at sholland.org>; Steven Lawrance <steven.lawrance at softathome.com>
> > Subject: [PATCH] riscv: Add a 64-bit image type
> >
> > At present it is not possible to know whether an image can be booted by a 32- or 64-bit bootloader. This means that U-Boot may attempt to boot the wrong image. This may cause a crash which might be hard to debug.
> >
> > Add a new property to make this explicit.
> >
> > The existing 'RISC-V' is now taken to mean 32-bit.
> >
> > Signed-off-by: Simon Glass <sjg at chromium.org>
> > ---
> >
> >  boot/image.c    | 3 ++-
> >  include/image.h | 3 ++-
> >  2 files changed, 4 insertions(+), 2 deletions(-)
>
> Reviewed-by: Rick Chen <rick at andestech.com>

This might create compatibility issues if the shipped host tool
(mkimage) does not match U-Boot version. Any idea how to avoid that?

Regards,
Bin