[PATCH v3 3/6] env: Enable SPI flash env for SiFive FU540

[Bin Meng]

On Fri, Jun 5, 2020 at 4:41 AM Jagan Teki <jagan at amarulasolutions.com> wrote:
>
> SPI flash device on HiFive Unleashed has 32MiB Size.
>
> This patch add SPI flash environment after U-Boot proper
> partition with a size of 128KiB.
>
> SPI flash partition layout(32MiB):
>     0 - 34      : reserved for GPT header
>    35 - 39      : unused
>    40 - 2087    : loader1 (SPL, FSBL)
>  2088 - 10279   : loader2 (U-Boot proper, U-Boot)
> 10280 - 10535   : environment
> 10536 - 65494   : rootfs
> 65528 - 65536   : distro script
>
> Note: the loader1 must start from 40th sector even though
> there are 6 free sectors prior since 40th sector is nearest
> flash sector boundary.
>
> Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
> ---
> Changes for v3:
> - fixed build issues
>
>  arch/riscv/cpu/fu540/Kconfig | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
>

Reviewed-by: Bin Meng <bin.meng at windriver.com>
Tested-by: Bin Meng <bin.meng at windriver.com>