Enable the SARADC for download key pressed detect.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Sheep board is designed by Rockchip as a EVB for rk3368.
Currently it is able to boot a linux kernel and system
to console with the miniloader run as fist level loader.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>