[PATCH 1/2] riscv: Support booting SiFive Unmatched from SPI.

[Leo Liang]

On Mon, Sep 27, 2021 at 12:59:37PM -0700, Thomas Skibo wrote:
> Configure SPI flash devices into SPL.  Add SPI boot option to spl.c.
> Document how to format flash for booting.
> 
> Signed-off-by: Thomas Skibo <thomas-git at skibo.net>
> ---
>  .../dts/hifive-unmatched-a00-u-boot.dtsi      | 11 +++++++
>  board/sifive/unmatched/spl.c                  |  3 ++
>  configs/sifive_unmatched_defconfig            |  6 ++++
>  doc/board/sifive/unmatched.rst                | 29 +++++++++++++++++++
>  4 files changed, 49 insertions(+)

Reviewed-by: Leo Yu-Chi Liang <ycliang at andestech.com>