net/phy: Add support for realtek RTL8211F

RTL8211F has different registers from RTL8211E.
This patch adds support for RTL8211F PHY which
can be found on Freescale's T1023 RDB board.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

drivers/net/phy/realtek.c

@@ -29,6 +29,18 @@
 /* RTL8211x PHY Interrupt Status Register */
 #define MIIM_RTL8211x_PHY_INSR         0x13
 
+/* RTL8211F PHY Status Register */
+#define MIIM_RTL8211F_PHY_STATUS       0x1a
+#define MIIM_RTL8211F_AUTONEG_ENABLE   0x1000
+#define MIIM_RTL8211F_PHYSTAT_SPEED    0x0030
+#define MIIM_RTL8211F_PHYSTAT_GBIT     0x0020
+#define MIIM_RTL8211F_PHYSTAT_100      0x0010
+#define MIIM_RTL8211F_PHYSTAT_DUPLEX   0x0008
+#define MIIM_RTL8211F_PHYSTAT_SPDDONE  0x0800
+#define MIIM_RTL8211F_PHYSTAT_LINK     0x0004
+
+#define MIIM_RTL8211F_PAGE_SELECT      0x1f
+
 /* RealTek RTL8211x */
 static int rtl8211x_config(struct phy_device *phydev)
 {
@@ -105,6 +117,58 @@ static int rtl8211x_parse_status(struct phy_device *phydev)
 	return 0;
 }
 
+static int rtl8211f_parse_status(struct phy_device *phydev)
+{
+	unsigned int speed;
+	unsigned int mii_reg;
+	int i = 0;
+
+	phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PAGE_SELECT, 0xa43);
+	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211F_PHY_STATUS);
+
+	phydev->link = 1;
+	while (!(mii_reg & MIIM_RTL8211F_PHYSTAT_LINK)) {
+		if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
+			puts(" TIMEOUT !\n");
+			phydev->link = 0;
+			break;
+		}
+
+		if ((i++ % 1000) == 0)
+			putc('.');
+		udelay(1000);
+		mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
+				   MIIM_RTL8211F_PHY_STATUS);
+	}
+
+	if (mii_reg & MIIM_RTL8211F_PHYSTAT_DUPLEX)
+		phydev->duplex = DUPLEX_FULL;
+	else
+		phydev->duplex = DUPLEX_HALF;
+
+	speed = (mii_reg & MIIM_RTL8211F_PHYSTAT_SPEED);
+
+	switch (speed) {
+	case MIIM_RTL8211F_PHYSTAT_GBIT:
+		phydev->speed = SPEED_1000;
+		break;
+	case MIIM_RTL8211F_PHYSTAT_100:
+		phydev->speed = SPEED_100;
+		break;
+	default:
+		phydev->speed = SPEED_10;
+	}
+
+	if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {
+		/* enable TXDLY */
+		phy_write(phydev, MDIO_DEVAD_NONE,
+			  MIIM_RTL8211F_PAGE_SELECT, 0xd08);
+		phy_write(phydev, MDIO_DEVAD_NONE, 0x11, 0x109);
+	}
+
+	return 0;
+}
+
 static int rtl8211x_startup(struct phy_device *phydev)
 {
 	/* Read the Status (2x to make sure link is right) */
@@ -114,6 +178,15 @@ static int rtl8211x_startup(struct phy_device *phydev)
 	return 0;
 }
 
+static int rtl8211f_startup(struct phy_device *phydev)
+{
+	/* Read the Status (2x to make sure link is right) */
+	genphy_update_link(phydev);
+	rtl8211f_parse_status(phydev);
+
+	return 0;
+}
+
 /* Support for RTL8211B PHY */
 static struct phy_driver RTL8211B_driver = {
 	.name = "RealTek RTL8211B",
@@ -147,10 +220,22 @@ static struct phy_driver RTL8211DN_driver = {
 	.shutdown = &genphy_shutdown,
 };
 
+/* Support for RTL8211F PHY */
+static struct phy_driver RTL8211F_driver = {
+	.name = "RealTek RTL8211F",
+	.uid = 0x1cc916,
+	.mask = 0xffffff,
+	.features = PHY_GBIT_FEATURES,
+	.config = &rtl8211x_config,
+	.startup = &rtl8211f_startup,
+	.shutdown = &genphy_shutdown,
+};
+
 int phy_realtek_init(void)
 {
 	phy_register(&RTL8211B_driver);
 	phy_register(&RTL8211E_driver);
+	phy_register(&RTL8211F_driver);
 	phy_register(&RTL8211DN_driver);
 
 	return 0;