netdev: Merge UCC and gianfar MDIO bus drivers

The MDIO bus drivers for the UCC and gianfar ethernet controllers are
essentially the same.  There's no reason to duplicate that much code.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/Kconfig

@@ -2272,9 +2272,17 @@ config GELIC_WIRELESS_OLD_PSK_INTERFACE
 
           If unsure, say N.
 
+config FSL_PQ_MDIO
+	tristate "Freescale PQ MDIO"
+	depends on FSL_SOC
+	select PHYLIB
+	help
+	  This driver supports the MDIO bus used by the gianfar and UCC drivers.
+
 config GIANFAR
 	tristate "Gianfar Ethernet"
 	depends on FSL_SOC
+	select FSL_PQ_MDIO
 	select PHYLIB
 	select CRC32
 	help
@@ -2284,6 +2292,7 @@ config GIANFAR
 config UCC_GETH
 	tristate "Freescale QE Gigabit Ethernet"
 	depends on QUICC_ENGINE
+	select FSL_PQ_MDIO
 	select PHYLIB
 	help
 	  This driver supports the Gigabit Ethernet mode of the QUICC Engine,

drivers/net/Makefile

@@ -24,11 +24,12 @@ obj-$(CONFIG_JME) += jme.o
 
 gianfar_driver-objs := gianfar.o \
 		gianfar_ethtool.o \
-		gianfar_mii.o \
 		gianfar_sysfs.o
 
 obj-$(CONFIG_UCC_GETH) += ucc_geth_driver.o
-ucc_geth_driver-objs := ucc_geth.o ucc_geth_mii.o ucc_geth_ethtool.o
+ucc_geth_driver-objs := ucc_geth.o ucc_geth_ethtool.o
+
+obj-$(CONFIG_FSL_PQ_MDIO) += fsl_pq_mdio.o
 
 #
 # link order important here