ixgbe: Add support for another X550 device.

This patch adds support for another 10baseT X550 device.
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

@@ -133,6 +133,7 @@ static const struct pci_device_id ixgbe_pci_tbl[] = {
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550T), board_X550},
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_KX4), board_X550EM_x},
 	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_KR), board_X550EM_x},
+	{PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_10G_T), board_X550EM_x},
 	/* required last entry */
 	{0, }
 };

drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c

@@ -347,6 +347,7 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id)
 	case TN1010_PHY_ID:
 		phy_type = ixgbe_phy_tn;
 		break;
+	case X550_PHY_ID:
 	case X540_PHY_ID:
 		phy_type = ixgbe_phy_aq;
 		break;

drivers/net/ethernet/intel/ixgbe/ixgbe_type.h

@@ -1353,6 +1353,7 @@ struct ixgbe_thermal_sensor_data {
 #define TN1010_PHY_ID    0x00A19410
 #define TNX_FW_REV       0xB
 #define X540_PHY_ID      0x01540200
+#define X550_PHY_ID      0x01540220
 #define X557_PHY_ID      0x01540240
 #define QT2022_PHY_ID    0x0043A400
 #define ATH_PHY_ID       0x03429050

drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c

@@ -1561,6 +1561,7 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 	s32 status;
 	u32 ctrl = 0;
 	u32 i;
+	u32 hlreg0;
 	bool link_up = false;
 
 	/* Call adapter stop to disable Tx/Rx and clear interrupts */
@@ -1645,6 +1646,12 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 	hw->mac.num_rar_entries = 128;
 	hw->mac.ops.init_rx_addrs(hw);
 
+	if (hw->device_id == IXGBE_DEV_ID_X550EM_X_10G_T) {
+		hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
+		hlreg0 &= ~IXGBE_HLREG0_MDCSPD;
+		IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
+	}
+
 	if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP)
 		ixgbe_setup_mux_ctl(hw);