[U-Boot] [PATCH v2] x86: Enable debug UART for Minnowmax

[Simon Glass]

On 2 August 2015 at 18:07, Simon Glass <sjg at chromium.org> wrote:
> Enable the debug UART and emit a single 'a' early in the init sequence to
> show that it is working.
>
> Unfortunately the debug UART implementation needs a stack to work. I cannot
> seem to remove this limitation as the absolute 'jmp %eax' instruction goes
> off into the weeds.
>
> So this means that the character output cannot be any earlier than
> car_init_ret, where memory is available for a stack.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> Reviewed-by: Lukasz Majewski <l.majewski at samsung.com>
> ---
>
> Changes in v2:
> - Put the debug UART setup code in comments since we don't always want it
>
>  arch/x86/cpu/start.S        | 9 +++++++++
>  configs/minnowmax_defconfig | 4 ++++
>  2 files changed, 13 insertions(+)

Applied to u-boot-dm.