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>
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h
index 7820720..3cb901b 100644
--- a/drivers/net/gianfar.h
+++ b/drivers/net/gianfar.h
@@ -46,7 +46,6 @@
 #include <linux/workqueue.h>
 #include <linux/ethtool.h>
 #include <linux/fsl_devices.h>
-#include "gianfar_mii.h"
 
 /* The maximum number of packets to be handled in one call of gfar_poll */
 #define GFAR_DEV_WEIGHT 64
@@ -126,9 +125,12 @@
 #define DEFAULT_RX_COALESCE 0
 #define DEFAULT_RXCOUNT	0
 
-#define MIIMCFG_INIT_VALUE	0x00000007
-#define MIIMCFG_RESET           0x80000000
-#define MIIMIND_BUSY            0x00000001
+#define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \
+		| SUPPORTED_10baseT_Full \
+		| SUPPORTED_100baseT_Half \
+		| SUPPORTED_100baseT_Full \
+		| SUPPORTED_Autoneg \
+		| SUPPORTED_MII)
 
 /* TBI register addresses */
 #define MII_TBICON		0x11
@@ -826,9 +828,6 @@
 extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev,
 		int enable, u32 regnum, u32 read);
 void gfar_init_sysfs(struct net_device *dev);
-int gfar_local_mdio_write(struct gfar_mii __iomem *regs, int mii_id,
-			  int regnum, u16 value);
-int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum);
 
 extern const struct ethtool_ops gfar_ethtool_ops;