[U-Boot] [RFC PATCH 04/11] riscv: add run mode configuration for SPL

[Bin Meng]

On Mon, Jul 22, 2019 at 2:00 AM Lukas Auer
<lukas.auer at aisec.fraunhofer.de> wrote:
>
> U-Boot SPL can be run in a different privilege mode from U-Boot proper.
> Add new configuration entries for SPL to allow the run mode to be
> configured independently of U-Boot proper.
>
> Extend all uses of the CONFIG_RISCV_SMODE and CONFIG_RISCV_MMODE
> configuration symbols to also cover the SPL equivalents. Ensure that
> files compatible with only one privilege mode are not included in builds
> targeting an incompatible privilege mode.
>
> Signed-off-by: Lukas Auer <lukas.auer at aisec.fraunhofer.de>
> ---
>
>  arch/riscv/Kconfig                | 33 ++++++++++++++++++++++++++-----
>  arch/riscv/cpu/ax25/Kconfig       |  6 +++---
>  arch/riscv/cpu/cpu.c              |  6 +++---
>  arch/riscv/cpu/generic/Kconfig    |  2 +-
>  arch/riscv/cpu/start.S            |  6 +++---
>  arch/riscv/include/asm/encoding.h |  2 +-
>  arch/riscv/lib/Makefile           |  7 +++++--
>  7 files changed, 44 insertions(+), 18 deletions(-)
>

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