phy: add RTBI mode for m88e1111

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/marvell.c

@@ -63,6 +63,7 @@
 #define MII_M1111_HWCFG_MODE_COPPER_RGMII	0xb
 #define MII_M1111_HWCFG_MODE_FIBER_RGMII	0x3
 #define MII_M1111_HWCFG_MODE_SGMII_NO_CLK	0x4
+#define MII_M1111_HWCFG_MODE_COPPER_RTBI	0x9
 #define MII_M1111_HWCFG_FIBER_COPPER_AUTO	0x8000
 #define MII_M1111_HWCFG_FIBER_COPPER_RES	0x2000
 
@@ -269,6 +270,43 @@ static int m88e1111_config_init(struct phy_device *phydev)
 			return err;
 	}
 
+	if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
+		temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
+		if (temp < 0)
+			return temp;
+		temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
+		err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
+		if (err < 0)
+			return err;
+
+		temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
+		if (temp < 0)
+			return temp;
+		temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
+		temp |= 0x7 | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
+		err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
+		if (err < 0)
+			return err;
+
+		/* soft reset */
+		err = phy_write(phydev, MII_BMCR, BMCR_RESET);
+		if (err < 0)
+			return err;
+		do
+			temp = phy_read(phydev, MII_BMCR);
+		while (temp & BMCR_RESET);
+
+		temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
+		if (temp < 0)
+			return temp;
+		temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
+		temp |= MII_M1111_HWCFG_MODE_COPPER_RTBI | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
+		err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
+		if (err < 0)
+			return err;
+	}
+
+
 	err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 	if (err < 0)
 		return err;