tree 737e407e044b851a3e8d5b751615959b16235d95
parent 9627a8e59e418163cf9a3fece3f401d0dfb32aeb
author Zong Li <zong.li@sifive.com> 1625066628 +0800
committer Leo Yu-Chi Liang <ycliang@andestech.com> 1625574265 +0800

board: sifive: Add an interface to get PCB revision

There are different DDR parameter settings for different board
revisions. Add a new interface to get the PCB revision to determine
which DT should be selected at runtime.

Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>