This adds support for resetting via assertion of GPIO pin.
This e.g. is used on Sharp Zaurus SL-6000.
Signed-off-by: NDmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: NEric Miao <eric.miao@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>