net: phy/realtek: Add support for RTL8211DN and RTL8211E phy modules

This patch adds support for Realtek PHY modules RTL8211DN and
RTL8211E (variants: RTL8211E-VB-CG, RTL8211E-VL-CG, RTL8211EG-VB-CG),
which can be found on Freescale's T1040RDB boards.

To make the driver more generic across 8211 family, a generic name 8211x
is added for macros and function names.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>

drivers/net/phy/realtek.c

@@ -12,18 +12,18 @@
 
 #define PHY_AUTONEGOTIATE_TIMEOUT 5000
 
-/* RTL8211B PHY Status Register */
-#define MIIM_RTL8211B_PHY_STATUS       0x11
-#define MIIM_RTL8211B_PHYSTAT_SPEED    0xc000
-#define MIIM_RTL8211B_PHYSTAT_GBIT     0x8000
-#define MIIM_RTL8211B_PHYSTAT_100      0x4000
-#define MIIM_RTL8211B_PHYSTAT_DUPLEX   0x2000
-#define MIIM_RTL8211B_PHYSTAT_SPDDONE  0x0800
-#define MIIM_RTL8211B_PHYSTAT_LINK     0x0400
-
-
-/* RealTek RTL8211B */
-static int rtl8211b_config(struct phy_device *phydev)
+/* RTL8211x PHY Status Register */
+#define MIIM_RTL8211x_PHY_STATUS       0x11
+#define MIIM_RTL8211x_PHYSTAT_SPEED    0xc000
+#define MIIM_RTL8211x_PHYSTAT_GBIT     0x8000
+#define MIIM_RTL8211x_PHYSTAT_100      0x4000
+#define MIIM_RTL8211x_PHYSTAT_DUPLEX   0x2000
+#define MIIM_RTL8211x_PHYSTAT_SPDDONE  0x0800
+#define MIIM_RTL8211x_PHYSTAT_LINK     0x0400
+
+
+/* RealTek RTL8211x */
+static int rtl8211x_config(struct phy_device *phydev)
 {
 	phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
 
@@ -32,20 +32,20 @@ static int rtl8211b_config(struct phy_device *phydev)
 	return 0;
 }
 
-static int rtl8211b_parse_status(struct phy_device *phydev)
+static int rtl8211x_parse_status(struct phy_device *phydev)
 {
 	unsigned int speed;
 	unsigned int mii_reg;
 
-	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211B_PHY_STATUS);
+	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_STATUS);
 
-	if (!(mii_reg & MIIM_RTL8211B_PHYSTAT_SPDDONE)) {
+	if (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
 		int i = 0;
 
 		/* in case of timeout ->link is cleared */
 		phydev->link = 1;
 		puts("Waiting for PHY realtime link");
-		while (!(mii_reg & MIIM_RTL8211B_PHYSTAT_SPDDONE)) {
+		while (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
 			/* Timeout reached ? */
 			if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
 				puts(" TIMEOUT !\n");
@@ -57,29 +57,29 @@ static int rtl8211b_parse_status(struct phy_device *phydev)
 				putc('.');
 			udelay(1000);	/* 1 ms */
 			mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
-					MIIM_RTL8211B_PHY_STATUS);
+					MIIM_RTL8211x_PHY_STATUS);
 		}
 		puts(" done\n");
 		udelay(500000);	/* another 500 ms (results in faster booting) */
 	} else {
-		if (mii_reg & MIIM_RTL8211B_PHYSTAT_LINK)
+		if (mii_reg & MIIM_RTL8211x_PHYSTAT_LINK)
 			phydev->link = 1;
 		else
 			phydev->link = 0;
 	}
 
-	if (mii_reg & MIIM_RTL8211B_PHYSTAT_DUPLEX)
+	if (mii_reg & MIIM_RTL8211x_PHYSTAT_DUPLEX)
 		phydev->duplex = DUPLEX_FULL;
 	else
 		phydev->duplex = DUPLEX_HALF;
 
-	speed = (mii_reg & MIIM_RTL8211B_PHYSTAT_SPEED);
+	speed = (mii_reg & MIIM_RTL8211x_PHYSTAT_SPEED);
 
 	switch (speed) {
-	case MIIM_RTL8211B_PHYSTAT_GBIT:
+	case MIIM_RTL8211x_PHYSTAT_GBIT:
 		phydev->speed = SPEED_1000;
 		break;
-	case MIIM_RTL8211B_PHYSTAT_100:
+	case MIIM_RTL8211x_PHYSTAT_100:
 		phydev->speed = SPEED_100;
 		break;
 	default:
@@ -89,28 +89,53 @@ static int rtl8211b_parse_status(struct phy_device *phydev)
 	return 0;
 }
 
-static int rtl8211b_startup(struct phy_device *phydev)
+static int rtl8211x_startup(struct phy_device *phydev)
 {
 	/* Read the Status (2x to make sure link is right) */
 	genphy_update_link(phydev);
-	rtl8211b_parse_status(phydev);
+	rtl8211x_parse_status(phydev);
 
 	return 0;
 }
 
+/* Support for RTL8211B PHY */
 static struct phy_driver RTL8211B_driver = {
 	.name = "RealTek RTL8211B",
 	.uid = 0x1cc910,
 	.mask = 0xfffff0,
 	.features = PHY_GBIT_FEATURES,
-	.config = &rtl8211b_config,
-	.startup = &rtl8211b_startup,
+	.config = &rtl8211x_config,
+	.startup = &rtl8211x_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+/* Support for RTL8211E-VB-CG, RTL8211E-VL-CG and RTL8211EG-VB-CG PHYs */
+static struct phy_driver RTL8211E_driver = {
+	.name = "RealTek RTL8211E",
+	.uid = 0x1cc915,
+	.mask = 0xfffff0,
+	.features = PHY_GBIT_FEATURES,
+	.config = &rtl8211x_config,
+	.startup = &rtl8211x_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+/* Support for RTL8211DN PHY */
+static struct phy_driver RTL8211DN_driver = {
+	.name = "RealTek RTL8211DN",
+	.uid = 0x1cc914,
+	.mask = 0xfffff0,
+	.features = PHY_GBIT_FEATURES,
+	.config = &rtl8211x_config,
+	.startup = &rtl8211x_startup,
 	.shutdown = &genphy_shutdown,
 };
 
 int phy_realtek_init(void)
 {
 	phy_register(&RTL8211B_driver);
+	phy_register(&RTL8211E_driver);
+	phy_register(&RTL8211DN_driver);
 
 	return 0;
 }