[U-Boot] [PATCH 24/30] riscv: save hart ID and device tree passed by prior boot stage

[Bin Meng]

On Sat, Oct 20, 2018 at 6:11 AM Lukas Auer
<lukas.auer at aisec.fraunhofer.de> wrote:
>
> Store the hart ID and device tree passed by the prior boot stage (in a0
> and a1) in registers s0 and s1. Replace one use of s1 in start.S to
> avoid overwriting it.
>
> The device tree is also stored in memory to make it available to u-boot

nits: U-Boot

> with the configuration CONFIG_OF_PRIOR_STAGE.
>
> Signed-off-by: Lukas Auer <lukas.auer at aisec.fraunhofer.de>
> ---
>
>  arch/riscv/cpu/cpu.c   |  6 ++++++
>  arch/riscv/cpu/start.S | 12 ++++++++++--
>  2 files changed, 16 insertions(+), 2 deletions(-)
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>