gianfar: Convert gianfar to an of_platform_driver

Does the same for the accompanying MDIO driver, and then modifies the TBI
configuration method.  The old way used fields in einfo, which no longer
exists.  The new way is to create an MDIO device-tree node for each instance
of gianfar, and create a tbi-handle property to associate ethernet controllers
with the TBI PHYs they are connected to.
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/gianfar_mii.h

@@ -49,4 +49,6 @@ int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum);
 struct mii_bus *gfar_get_miibus(const struct gfar_private *priv);
 int __init gfar_mdio_init(void);
 void gfar_mdio_exit(void);
+
+void gfar_mdio_bus_name(char *name, struct device_node *np);
 #endif /* GIANFAR_PHY_H */

include/linux/fsl_devices.h

@@ -47,12 +47,7 @@
 struct gianfar_platform_data {
 	/* device specific information */
 	u32	device_flags;
-	/* board specific information */
-	u32	board_flags;
-	int	mdio_bus;			/* Bus controlled by us */
-	char	bus_id[MII_BUS_ID_SIZE];	/* Bus PHY is on */
-	u32	phy_id;
-	u8	mac_addr[6];
+	char	bus_id[BUS_ID_SIZE];
 	phy_interface_t interface;
 };
 
@@ -61,17 +56,6 @@ struct gianfar_mdio_data {
 	int	irq[32];
 };
 
-/* Flags related to gianfar device features */
-#define FSL_GIANFAR_DEV_HAS_GIGABIT		0x00000001
-#define FSL_GIANFAR_DEV_HAS_COALESCE		0x00000002
-#define FSL_GIANFAR_DEV_HAS_RMON		0x00000004
-#define FSL_GIANFAR_DEV_HAS_MULTI_INTR		0x00000008
-#define FSL_GIANFAR_DEV_HAS_CSUM		0x00000010
-#define FSL_GIANFAR_DEV_HAS_VLAN		0x00000020
-#define FSL_GIANFAR_DEV_HAS_EXTENDED_HASH	0x00000040
-#define FSL_GIANFAR_DEV_HAS_PADDING		0x00000080
-#define FSL_GIANFAR_DEV_HAS_MAGIC_PACKET	0x00000100
-
 /* Flags in gianfar_platform_data */
 #define FSL_GIANFAR_BRD_HAS_PHY_INTR	0x00000001 /* set or use a timer */
 #define FSL_GIANFAR_BRD_IS_REDUCED	0x00000002 /* Set if RGMII, RMII */