[PATCH 1/3 v4] riscv: Remove OF_PRIOR_STAGE from RISC-V boards

[Leo Liang]

Hi Ilias,
On Tue, Oct 12, 2021 at 12:00:13AM +0300, Ilias Apalodimas wrote:
> At some point back in 2018 prior_stage_fdt_address and OF_PRIOR_STAGE got
> introduced,  in order to support a DTB handed over by an earlier stage boo

typo: boot loader

> loader.  However we have another option in the Kconfig (OF_BOARD) which has
> identical semantics.
> 
> On RISC-V some of the boards pick up the DTB from a1 and copy it in their
> private gd_t.  Apart from that they copy it to prior_stage_fdt_address,  if
> the Kconfig option is selected, which is unnecessary.
> 
> So let's switch the config option for those boards to OF_BOARD and define
> the required board_fdt_blob_setup() for them.
> 
> Signed-off-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
> Reviewed-by: Simon Glass <sjg at chromium.org>

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

Best regards,
Leo