r8169: add a new 8168c flavor

Taken from Realtek's 8.006.00 r8168 driver.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>

drivers/net/r8169.c

@@ -109,7 +109,8 @@ enum mac_version {
 	RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
 	RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
 	RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
-	RTL_GIGA_MAC_VER_20 = 0x14  // 8168C
+	RTL_GIGA_MAC_VER_20 = 0x14, // 8168C
+	RTL_GIGA_MAC_VER_21 = 0x15  // 8168C
 };
 
 #define _R(NAME,MAC,MASK) \
@@ -139,7 +140,8 @@ static const struct {
 	_R("RTL8101e",		RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
 	_R("RTL8168cp/8111cp",	RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
 	_R("RTL8168c/8111c",	RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
-	_R("RTL8168c/8111c",	RTL_GIGA_MAC_VER_20, 0xff7e1880)  // PCI-E
+	_R("RTL8168c/8111c",	RTL_GIGA_MAC_VER_20, 0xff7e1880), // PCI-E
+	_R("RTL8168c/8111c",	RTL_GIGA_MAC_VER_21, 0xff7e1880)  // PCI-E
 };
 #undef _R
 
@@ -1220,6 +1222,7 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp,
 		{ 0x7c800000, 0x3c800000,	RTL_GIGA_MAC_VER_18 },
 		{ 0x7cf00000, 0x3c000000,	RTL_GIGA_MAC_VER_19 },
 		{ 0x7cf00000, 0x3c200000,	RTL_GIGA_MAC_VER_20 },
+		{ 0x7cf00000, 0x3c300000,	RTL_GIGA_MAC_VER_21 },
 		{ 0x7c800000, 0x3c000000,	RTL_GIGA_MAC_VER_20 },
 
 		/* 8168B family. */
@@ -1444,6 +1447,28 @@ static void rtl8168c_2_hw_phy_config(void __iomem *ioaddr)
 	mdio_write(ioaddr, 0x1f, 0x0000);
 }
 
+static void rtl8168c_3_hw_phy_config(void __iomem *ioaddr)
+{
+	struct phy_reg phy_reg_init[] = {
+		{ 0x1f, 0x0001 },
+		{ 0x12, 0x2300 },
+		{ 0x1d, 0x3d98 },
+		{ 0x1f, 0x0002 },
+		{ 0x0c, 0x7eb8 },
+		{ 0x06, 0x5461 },
+		{ 0x1f, 0x0003 },
+		{ 0x16, 0x0f0a },
+		{ 0x1f, 0x0000 }
+	};
+
+	rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+	mdio_patch(ioaddr, 0x16, 1 << 0);
+	mdio_patch(ioaddr, 0x14, 1 << 5);
+	mdio_patch(ioaddr, 0x0d, 1 << 5);
+	mdio_write(ioaddr, 0x1f, 0x0000);
+}
+
 static void rtl8102e_hw_phy_config(void __iomem *ioaddr)
 {
 	struct phy_reg phy_reg_init[] = {
@@ -1500,6 +1525,9 @@ static void rtl_hw_phy_config(struct net_device *dev)
 	case RTL_GIGA_MAC_VER_20:
 		rtl8168c_2_hw_phy_config(ioaddr);
 		break;
+	case RTL_GIGA_MAC_VER_21:
+		rtl8168c_3_hw_phy_config(ioaddr);
+		break;
 	default:
 		break;
 	}
@@ -2490,6 +2518,11 @@ static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev)
 	__rtl_hw_start_8168cp(ioaddr, pdev);
 }
 
+static void rtl_hw_start_8168c_3(void __iomem *ioaddr, struct pci_dev *pdev)
+{
+	rtl_hw_start_8168c_2(ioaddr, pdev);
+}
+
 static void rtl_hw_start_8168(struct net_device *dev)
 {
 	struct rtl8169_private *tp = netdev_priv(dev);
@@ -2545,6 +2578,10 @@ static void rtl_hw_start_8168(struct net_device *dev)
 		rtl_hw_start_8168c_2(ioaddr, pdev);
 	break;
 
+	case RTL_GIGA_MAC_VER_21:
+		rtl_hw_start_8168c_3(ioaddr, pdev);
+	break;
+
 	default:
 		printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
 			dev->name, tp->mac_version);