Blackfin EMAC driver: Add phy abstraction layer supporting in bfin_emac driver

 - add MDIO functions and register mdio bus
 - add phy abstraction layer (PAL) functions and use PAL API
 - test on STAMP537 board
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/bfin_mac.h

@@ -31,32 +31,6 @@
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-/*
- * PHY REGISTER NAMES
- */
-#define PHYREG_MODECTL		0x0000
-#define PHYREG_MODESTAT		0x0001
-#define PHYREG_PHYID1		0x0002
-#define PHYREG_PHYID2		0x0003
-#define PHYREG_ANAR		0x0004
-#define PHYREG_ANLPAR		0x0005
-#define PHYREG_ANER		0x0006
-#define PHYREG_NSR		0x0010
-#define PHYREG_LBREMR		0x0011
-#define PHYREG_REC		0x0012
-#define PHYREG_10CFG		0x0013
-#define PHYREG_PHY1_1		0x0014
-#define PHYREG_PHY1_2		0x0015
-#define PHYREG_PHY2		0x0016
-#define PHYREG_TW_1		0x0017
-#define PHYREG_TW_2		0x0018
-#define PHYREG_TEST		0x0019
-
-#define PHY_RESET		0x8000
-#define PHY_ANEG_EN		0x1000
-#define PHY_DUPLEX		0x0100
-#define PHY_SPD_SET		0x2000
-
 #define BFIN_MAC_CSUM_OFFLOAD
 
 struct dma_descriptor {
@@ -104,27 +78,18 @@ struct bf537mac_local {
 	 * can find out semi-useless statistics of how well the card is
 	 * performing
 	 */
-	int version;
+	struct net_device_stats stats;
 
-	int FlowEnabled;	/* record if data flow is active */
-	int EtherIntIVG;	/* IVG for the ethernet interrupt */
-	int RXIVG;		/* IVG for the RX completion */
-	int TXIVG;		/* IVG for the TX completion */
-	int PhyAddr;		/* PHY address */
-	int OpMode;		/* set these bits n the OPMODE regs */
-	int Port10;		/* set port speed to 10 Mbit/s */
-	int GenChksums;		/* IP checksums to be calculated */
-	int NoRcveLnth;		/* dont insert recv length at start of buffer */
-	int StripPads;		/* remove trailing pad bytes */
-	int FullDuplex;		/* set full duplex mode */
-	int Negotiate;		/* enable auto negotiation */
-	int Loopback;		/* loopback at the PHY */
-	int Cache;		/* Buffers may be cached */
-	int FlowControl;	/* flow control active */
-	int CLKIN;		/* clock in value in MHZ */
-	unsigned short IntMask;	/* interrupt mask */
 	unsigned char Mac[6];	/* MAC address of the board */
 	spinlock_t lock;
+
+	/* MII and PHY stuffs */
+	int old_link;          /* used by bf537_adjust_link */
+	int old_speed;
+	int old_duplex;
+
+	struct phy_device *phydev;
+	struct mii_bus mii_bus;
 };
 
 extern void get_bf537_ether_addr(char *addr);