This adds a driver for the mdio bus found on Marvell Orion SoCs as
part of the GBE device and Marvell Armada 370/XP as part of Neta
eth device. Both drivers can share this code, so make it available
independently.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Michael Grzeschik <mgr@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>