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authorLuka Perkov <luka@openwrt.org>2014-08-11 20:35:10 +0000
committerLuka Perkov <luka@openwrt.org>2014-08-11 20:35:10 +0000
commit6b2145fca6698555c8f1e5c5373a440f2088e7a3 (patch)
treea64f715cba41287389630147006415e6c2a25bdb /target/linux/imx6/patches-3.14
parent7d82dc4a822da3d708c566444de19f81c0b0137f (diff)
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imx6: kernel: add GW16083 Ethernet Expansion Mezzanine support
The GW16083 Ethernet Expansion Mezzanine adds the following to supported Gateworks baseboards: * 7-port Ethernet Switch * 4x RJ45 ports (ENET1-4) supporing 802.11af/at PoE (with optional PoE module) * 2x RJ45 ports or SFP module (ENET5-6) (auto-selected) This series adds support for a phy driver that adds support for ENET5/ENET6 PHY adding initialization for those PHY's and a polling mechanism that detects SFP insertion and configuration. Signed-off-by: Tim Harvey <tharvey@gateworks.com> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42147 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/imx6/patches-3.14')
-rw-r--r--target/linux/imx6/patches-3.14/202-net-igb-add-i210-i211-support-for-phy-read-write.patch129
-rw-r--r--target/linux/imx6/patches-3.14/203-net-igb-add-phy-read-write-functions-that-accept-phy.patch255
-rw-r--r--target/linux/imx6/patches-3.14/204-net-igb-register-mii_bus-for-SerDes-w-external-phy.patch303
-rw-r--r--target/linux/imx6/patches-3.14/205-phy-add-driver-for-GW16083-Ethernet-Expansion-Mezzan.patch27
-rw-r--r--target/linux/imx6/patches-3.14/206-ARM-imx-ventana-added-GW16083-to-device-tree.patch56
5 files changed, 770 insertions, 0 deletions
diff --git a/target/linux/imx6/patches-3.14/202-net-igb-add-i210-i211-support-for-phy-read-write.patch b/target/linux/imx6/patches-3.14/202-net-igb-add-i210-i211-support-for-phy-read-write.patch
new file mode 100644
index 0000000000..9de5dfe44a
--- /dev/null
+++ b/target/linux/imx6/patches-3.14/202-net-igb-add-i210-i211-support-for-phy-read-write.patch
@@ -0,0 +1,129 @@
+Author: Tim Harvey <tharvey@gateworks.com>
+Date: Thu May 15 00:12:26 2014 -0700
+
+ net: igb: add i210/i211 support for phy read/write
+
+ The i210/i211 uses the MDICNFG register for the phy address instead of the
+ MDIC register.
+
+ Signed-off-by: Tim Harvey <tharvey@gateworks.com>
+
+--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
++++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
+@@ -139,7 +139,7 @@ out:
+ s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data)
+ {
+ struct e1000_phy_info *phy = &hw->phy;
+- u32 i, mdic = 0;
++ u32 i, mdicnfg, mdic = 0;
+ s32 ret_val = 0;
+
+ if (offset > MAX_PHY_REG_ADDRESS) {
+@@ -152,11 +152,25 @@ s32 igb_read_phy_reg_mdic(struct e1000_h
+ * Control register. The MAC will take care of interfacing with the
+ * PHY to retrieve the desired data.
+ */
+- mdic = ((offset << E1000_MDIC_REG_SHIFT) |
+- (phy->addr << E1000_MDIC_PHY_SHIFT) |
+- (E1000_MDIC_OP_READ));
++ switch (hw->mac.type) {
++ case e1000_i210:
++ case e1000_i211:
++ mdicnfg = rd32(E1000_MDICNFG);
++ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
++ mdicnfg |= (phy->addr << E1000_MDICNFG_PHY_SHIFT);
++ wr32(E1000_MDICNFG, mdicnfg);
++ mdic = ((offset << E1000_MDIC_REG_SHIFT) |
++ (E1000_MDIC_OP_READ));
++ break;
++ default:
++ mdic = ((offset << E1000_MDIC_REG_SHIFT) |
++ (phy->addr << E1000_MDIC_PHY_SHIFT) |
++ (E1000_MDIC_OP_READ));
++ break;
++ }
+
+ wr32(E1000_MDIC, mdic);
++ wrfl();
+
+ /* Poll the ready bit to see if the MDI read completed
+ * Increasing the time out as testing showed failures with
+@@ -181,6 +195,18 @@ s32 igb_read_phy_reg_mdic(struct e1000_h
+ *data = (u16) mdic;
+
+ out:
++ switch (hw->mac.type) {
++ /* restore MDICNFG to have phy's addr */
++ case e1000_i210:
++ case e1000_i211:
++ mdicnfg = rd32(E1000_MDICNFG);
++ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
++ mdicnfg |= (hw->phy.addr << E1000_MDICNFG_PHY_SHIFT);
++ wr32(E1000_MDICNFG, mdicnfg);
++ break;
++ default:
++ break;
++ }
+ return ret_val;
+ }
+
+@@ -195,7 +221,7 @@ out:
+ s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data)
+ {
+ struct e1000_phy_info *phy = &hw->phy;
+- u32 i, mdic = 0;
++ u32 i, mdicnfg, mdic = 0;
+ s32 ret_val = 0;
+
+ if (offset > MAX_PHY_REG_ADDRESS) {
+@@ -208,12 +234,27 @@ s32 igb_write_phy_reg_mdic(struct e1000_
+ * Control register. The MAC will take care of interfacing with the
+ * PHY to retrieve the desired data.
+ */
+- mdic = (((u32)data) |
+- (offset << E1000_MDIC_REG_SHIFT) |
+- (phy->addr << E1000_MDIC_PHY_SHIFT) |
+- (E1000_MDIC_OP_WRITE));
++ switch (hw->mac.type) {
++ case e1000_i210:
++ case e1000_i211:
++ mdicnfg = rd32(E1000_MDICNFG);
++ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
++ mdicnfg |= (phy->addr << E1000_MDICNFG_PHY_SHIFT);
++ wr32(E1000_MDICNFG, mdicnfg);
++ mdic = (((u32)data) |
++ (offset << E1000_MDIC_REG_SHIFT) |
++ (E1000_MDIC_OP_WRITE));
++ break;
++ default:
++ mdic = (((u32)data) |
++ (offset << E1000_MDIC_REG_SHIFT) |
++ (phy->addr << E1000_MDIC_PHY_SHIFT) |
++ (E1000_MDIC_OP_WRITE));
++ break;
++ }
+
+ wr32(E1000_MDIC, mdic);
++ wrfl();
+
+ /* Poll the ready bit to see if the MDI read completed
+ * Increasing the time out as testing showed failures with
+@@ -237,6 +278,18 @@ s32 igb_write_phy_reg_mdic(struct e1000_
+ }
+
+ out:
++ switch (hw->mac.type) {
++ /* restore MDICNFG to have phy's addr */
++ case e1000_i210:
++ case e1000_i211:
++ mdicnfg = rd32(E1000_MDICNFG);
++ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
++ mdicnfg |= (hw->phy.addr << E1000_MDICNFG_PHY_SHIFT);
++ wr32(E1000_MDICNFG, mdicnfg);
++ break;
++ default:
++ break;
++ }
+ return ret_val;
+ }
+
diff --git a/target/linux/imx6/patches-3.14/203-net-igb-add-phy-read-write-functions-that-accept-phy.patch b/target/linux/imx6/patches-3.14/203-net-igb-add-phy-read-write-functions-that-accept-phy.patch
new file mode 100644
index 0000000000..b6688db9ac
--- /dev/null
+++ b/target/linux/imx6/patches-3.14/203-net-igb-add-phy-read-write-functions-that-accept-phy.patch
@@ -0,0 +1,255 @@
+Author: Tim Harvey <tharvey@gateworks.com>
+Date: Thu May 15 00:29:18 2014 -0700
+
+ net: igb: add phy read/write functions that accept phy addr
+
+ Add igb_write_reg_gs40g/igb_read_reg_gs40g that can be passed a phy address.
+ The existing igb_write_phy_reg_gs40g/igb_read_phy_reg_gs40g become wrappers
+ to this function.
+
+ Signed-off-by: Tim Harvey <tharvey@gateworks.com>
+
+--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
++++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
+@@ -2142,7 +2142,7 @@ static s32 igb_read_phy_reg_82580(struct
+ if (ret_val)
+ goto out;
+
+- ret_val = igb_read_phy_reg_mdic(hw, offset, data);
++ ret_val = igb_read_phy_reg_mdic(hw, hw->phy.addr, offset, data);
+
+ hw->phy.ops.release(hw);
+
+@@ -2167,7 +2167,7 @@ static s32 igb_write_phy_reg_82580(struc
+ if (ret_val)
+ goto out;
+
+- ret_val = igb_write_phy_reg_mdic(hw, offset, data);
++ ret_val = igb_write_phy_reg_mdic(hw, hw->phy.addr, offset, data);
+
+ hw->phy.ops.release(hw);
+
+--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
++++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
+@@ -136,9 +136,8 @@ out:
+ * Reads the MDI control regsiter in the PHY at offset and stores the
+ * information read to data.
+ **/
+-s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data)
++s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u8 addr, u32 offset, u16 *data)
+ {
+- struct e1000_phy_info *phy = &hw->phy;
+ u32 i, mdicnfg, mdic = 0;
+ s32 ret_val = 0;
+
+@@ -157,14 +156,14 @@ s32 igb_read_phy_reg_mdic(struct e1000_h
+ case e1000_i211:
+ mdicnfg = rd32(E1000_MDICNFG);
+ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
+- mdicnfg |= (phy->addr << E1000_MDICNFG_PHY_SHIFT);
++ mdicnfg |= (addr << E1000_MDICNFG_PHY_SHIFT);
+ wr32(E1000_MDICNFG, mdicnfg);
+ mdic = ((offset << E1000_MDIC_REG_SHIFT) |
+ (E1000_MDIC_OP_READ));
+ break;
+ default:
+ mdic = ((offset << E1000_MDIC_REG_SHIFT) |
+- (phy->addr << E1000_MDIC_PHY_SHIFT) |
++ (addr << E1000_MDIC_PHY_SHIFT) |
+ (E1000_MDIC_OP_READ));
+ break;
+ }
+@@ -218,9 +217,8 @@ out:
+ *
+ * Writes data to MDI control register in the PHY at offset.
+ **/
+-s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data)
++s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u8 addr, u32 offset, u16 data)
+ {
+- struct e1000_phy_info *phy = &hw->phy;
+ u32 i, mdicnfg, mdic = 0;
+ s32 ret_val = 0;
+
+@@ -239,7 +237,7 @@ s32 igb_write_phy_reg_mdic(struct e1000_
+ case e1000_i211:
+ mdicnfg = rd32(E1000_MDICNFG);
+ mdicnfg &= ~(E1000_MDICNFG_PHY_MASK);
+- mdicnfg |= (phy->addr << E1000_MDICNFG_PHY_SHIFT);
++ mdicnfg |= (addr << E1000_MDICNFG_PHY_SHIFT);
+ wr32(E1000_MDICNFG, mdicnfg);
+ mdic = (((u32)data) |
+ (offset << E1000_MDIC_REG_SHIFT) |
+@@ -248,7 +246,7 @@ s32 igb_write_phy_reg_mdic(struct e1000_
+ default:
+ mdic = (((u32)data) |
+ (offset << E1000_MDIC_REG_SHIFT) |
+- (phy->addr << E1000_MDIC_PHY_SHIFT) |
++ (addr << E1000_MDIC_PHY_SHIFT) |
+ (E1000_MDIC_OP_WRITE));
+ break;
+ }
+@@ -539,7 +537,7 @@ s32 igb_read_phy_reg_igp(struct e1000_hw
+ goto out;
+
+ if (offset > MAX_PHY_MULTI_PAGE_REG) {
+- ret_val = igb_write_phy_reg_mdic(hw,
++ ret_val = igb_write_phy_reg_mdic(hw, hw->phy.addr,
+ IGP01E1000_PHY_PAGE_SELECT,
+ (u16)offset);
+ if (ret_val) {
+@@ -548,8 +546,8 @@ s32 igb_read_phy_reg_igp(struct e1000_hw
+ }
+ }
+
+- ret_val = igb_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
+- data);
++ ret_val = igb_read_phy_reg_mdic(hw, hw->phy.addr,
++ MAX_PHY_REG_ADDRESS & offset, data);
+
+ hw->phy.ops.release(hw);
+
+@@ -578,7 +576,7 @@ s32 igb_write_phy_reg_igp(struct e1000_h
+ goto out;
+
+ if (offset > MAX_PHY_MULTI_PAGE_REG) {
+- ret_val = igb_write_phy_reg_mdic(hw,
++ ret_val = igb_write_phy_reg_mdic(hw, hw->phy.addr,
+ IGP01E1000_PHY_PAGE_SELECT,
+ (u16)offset);
+ if (ret_val) {
+@@ -587,8 +585,8 @@ s32 igb_write_phy_reg_igp(struct e1000_h
+ }
+ }
+
+- ret_val = igb_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
+- data);
++ ret_val = igb_write_phy_reg_mdic(hw, hw->phy.addr,
++ MAX_PHY_REG_ADDRESS & offset, data);
+
+ hw->phy.ops.release(hw);
+
+@@ -2554,8 +2552,9 @@ out:
+ }
+
+ /**
+- * igb_write_phy_reg_gs40g - Write GS40G PHY register
++ * igb_write_reg_gs40g - Write GS40G PHY register
+ * @hw: pointer to the HW structure
++ * @addr: phy address to write to
+ * @offset: lower half is register offset to write to
+ * upper half is page to use.
+ * @data: data to write at register offset
+@@ -2563,7 +2562,7 @@ out:
+ * Acquires semaphore, if necessary, then writes the data to PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+-s32 igb_write_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 data)
++s32 igb_write_reg_gs40g(struct e1000_hw *hw, u8 addr, u32 offset, u16 data)
+ {
+ s32 ret_val;
+ u16 page = offset >> GS40G_PAGE_SHIFT;
+@@ -2573,10 +2572,10 @@ s32 igb_write_phy_reg_gs40g(struct e1000
+ if (ret_val)
+ return ret_val;
+
+- ret_val = igb_write_phy_reg_mdic(hw, GS40G_PAGE_SELECT, page);
++ ret_val = igb_write_phy_reg_mdic(hw, addr, GS40G_PAGE_SELECT, page);
+ if (ret_val)
+ goto release;
+- ret_val = igb_write_phy_reg_mdic(hw, offset, data);
++ ret_val = igb_write_phy_reg_mdic(hw, addr, offset, data);
+
+ release:
+ hw->phy.ops.release(hw);
+@@ -2584,8 +2583,24 @@ release:
+ }
+
+ /**
+- * igb_read_phy_reg_gs40g - Read GS40G PHY register
++ * igb_write_phy_reg_gs40g - Write GS40G PHY register
++ * @hw: pointer to the HW structure
++ * @offset: lower half is register offset to write to
++ * upper half is page to use.
++ * @data: data to write at register offset
++ *
++ * Acquires semaphore, if necessary, then writes the data to PHY register
++ * at the offset. Release any acquired semaphores before exiting.
++ **/
++s32 igb_write_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 data)
++{
++ return igb_write_reg_gs40g(hw, hw->phy.addr, offset, data);
++}
++
++/**
++ * igb_read_reg_gs40g - Read GS40G PHY register
+ * @hw: pointer to the HW structure
++ * @addr: phy address to read from
+ * @offset: lower half is register offset to read to
+ * upper half is page to use.
+ * @data: data to read at register offset
+@@ -2593,7 +2608,7 @@ release:
+ * Acquires semaphore, if necessary, then reads the data in the PHY register
+ * at the offset. Release any acquired semaphores before exiting.
+ **/
+-s32 igb_read_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 *data)
++s32 igb_read_reg_gs40g(struct e1000_hw *hw, u8 addr, u32 offset, u16 *data)
+ {
+ s32 ret_val;
+ u16 page = offset >> GS40G_PAGE_SHIFT;
+@@ -2603,10 +2618,10 @@ s32 igb_read_phy_reg_gs40g(struct e1000_
+ if (ret_val)
+ return ret_val;
+
+- ret_val = igb_write_phy_reg_mdic(hw, GS40G_PAGE_SELECT, page);
++ ret_val = igb_write_phy_reg_mdic(hw, addr, GS40G_PAGE_SELECT, page);
+ if (ret_val)
+ goto release;
+- ret_val = igb_read_phy_reg_mdic(hw, offset, data);
++ ret_val = igb_read_phy_reg_mdic(hw, addr, offset, data);
+
+ release:
+ hw->phy.ops.release(hw);
+@@ -2614,6 +2629,21 @@ release:
+ }
+
+ /**
++ * igb_read_phy_reg_gs40g - Read GS40G PHY register
++ * @hw: pointer to the HW structure
++ * @offset: lower half is register offset to read to
++ * upper half is page to use.
++ * @data: data to read at register offset
++ *
++ * Acquires semaphore, if necessary, then reads the data in the PHY register
++ * at the offset. Release any acquired semaphores before exiting.
++ **/
++s32 igb_read_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 *data)
++{
++ return igb_read_reg_gs40g(hw, hw->phy.addr, offset, data);
++}
++
++/**
+ * igb_set_master_slave_mode - Setup PHY for Master/slave mode
+ * @hw: pointer to the HW structure
+ *
+--- a/drivers/net/ethernet/intel/igb/e1000_phy.h
++++ b/drivers/net/ethernet/intel/igb/e1000_phy.h
+@@ -65,8 +65,8 @@ s32 igb_phy_has_link(struct e1000_hw *h
+ void igb_power_up_phy_copper(struct e1000_hw *hw);
+ void igb_power_down_phy_copper(struct e1000_hw *hw);
+ s32 igb_phy_init_script_igp3(struct e1000_hw *hw);
+-s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data);
+-s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data);
++s32 igb_read_phy_reg_mdic(struct e1000_hw *hw, u8 addr, u32 offset, u16 *data);
++s32 igb_write_phy_reg_mdic(struct e1000_hw *hw, u8 addr, u32 offset, u16 data);
+ s32 igb_read_phy_reg_i2c(struct e1000_hw *hw, u32 offset, u16 *data);
+ s32 igb_write_phy_reg_i2c(struct e1000_hw *hw, u32 offset, u16 data);
+ s32 igb_read_sfp_data_byte(struct e1000_hw *hw, u16 offset, u8 *data);
+@@ -77,6 +77,8 @@ s32 igb_phy_force_speed_duplex_82580(st
+ s32 igb_get_cable_length_82580(struct e1000_hw *hw);
+ s32 igb_read_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 *data);
+ s32 igb_write_phy_reg_gs40g(struct e1000_hw *hw, u32 offset, u16 data);
++s32 igb_read_reg_gs40g(struct e1000_hw *hw, u8 addr, u32 offset, u16 *data);
++s32 igb_write_reg_gs40g(struct e1000_hw *hw, u8 addr, u32 offset, u16 data);
+ s32 igb_check_polarity_m88(struct e1000_hw *hw);
+
+ /* IGP01E1000 Specific Registers */
diff --git a/target/linux/imx6/patches-3.14/204-net-igb-register-mii_bus-for-SerDes-w-external-phy.patch b/target/linux/imx6/patches-3.14/204-net-igb-register-mii_bus-for-SerDes-w-external-phy.patch
new file mode 100644
index 0000000000..1b458f76db
--- /dev/null
+++ b/target/linux/imx6/patches-3.14/204-net-igb-register-mii_bus-for-SerDes-w-external-phy.patch
@@ -0,0 +1,303 @@
+Author: Tim Harvey <tharvey@gateworks.com>
+Date: Thu May 15 12:36:23 2014 -0700
+
+ net: igb: register mii_bus for SerDes w/ external phy
+
+ If an i210 is configured for 1000BASE-BX link_mode and has an external phy
+ specified, then register an mii bus using the external phy address as
+ a mask.
+
+ An i210 hooked to an external standard phy will be configured with a link_mo
+ of SGMII in which case phy ops will be configured and used internall in the
+ igb driver for link status. However, in certain cases one might be using a
+ backplane SerDes connection to something that talks on the mdio bus but is
+ not a standard phy, such as a switch. In this case by registering an mdio
+ bus a phy driver can manage the device.
+
+ Signed-off-by: Tim Harvey <tharvey@gateworks.com>
+
+--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
++++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
+@@ -606,13 +606,25 @@ static s32 igb_get_invariants_82575(stru
+ switch (link_mode) {
+ case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX:
+ hw->phy.media_type = e1000_media_type_internal_serdes;
++ if (igb_sgmii_uses_mdio_82575(hw)) {
++ u32 mdicnfg = rd32(E1000_MDICNFG);
++ mdicnfg &= E1000_MDICNFG_PHY_MASK;
++ hw->phy.addr = mdicnfg >> E1000_MDICNFG_PHY_SHIFT;
++ hw_dbg("1000BASE_KX w/ external MDIO device at 0x%x\n",
++ hw->phy.addr);
++ } else {
++ hw_dbg("1000BASE_KX");
++ }
+ break;
+ case E1000_CTRL_EXT_LINK_MODE_SGMII:
+ /* Get phy control interface type set (MDIO vs. I2C)*/
+ if (igb_sgmii_uses_mdio_82575(hw)) {
+ hw->phy.media_type = e1000_media_type_copper;
+ dev_spec->sgmii_active = true;
++ hw_dbg("SGMII with external MDIO PHY");
+ break;
++ } else {
++ hw_dbg("SGMII with external I2C PHY");
+ }
+ /* fall through for I2C based SGMII */
+ case E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES:
+@@ -629,8 +641,11 @@ static s32 igb_get_invariants_82575(stru
+ hw->phy.media_type = e1000_media_type_copper;
+ dev_spec->sgmii_active = true;
+ }
++ hw_dbg("SERDES with external SFP");
+
+ break;
++ } else {
++ hw_dbg("SERDES");
+ }
+
+ /* do not change link mode for 100BaseFX */
+--- a/drivers/net/ethernet/intel/igb/e1000_hw.h
++++ b/drivers/net/ethernet/intel/igb/e1000_hw.h
+@@ -32,6 +32,7 @@
+ #include <linux/delay.h>
+ #include <linux/io.h>
+ #include <linux/netdevice.h>
++#include <linux/phy.h>
+
+ #include "e1000_regs.h"
+ #include "e1000_defines.h"
+@@ -553,6 +554,12 @@ struct e1000_hw {
+ struct e1000_mbx_info mbx;
+ struct e1000_host_mng_dhcp_cookie mng_cookie;
+
++#ifdef CONFIG_PHYLIB
++ /* Phylib and MDIO interface */
++ struct mii_bus *mii_bus;
++ struct phy_device *phy_dev;
++ phy_interface_t phy_interface;
++#endif
+ union {
+ struct e1000_dev_spec_82575 _82575;
+ } dev_spec;
+--- a/drivers/net/ethernet/intel/igb/igb_main.c
++++ b/drivers/net/ethernet/intel/igb/igb_main.c
+@@ -45,6 +45,7 @@
+ #include <linux/if_vlan.h>
+ #include <linux/pci.h>
+ #include <linux/pci-aspm.h>
++#include <linux/phy.h>
+ #include <linux/delay.h>
+ #include <linux/interrupt.h>
+ #include <linux/ip.h>
+@@ -2183,6 +2184,126 @@ static s32 igb_init_i2c(struct igb_adapt
+ return status;
+ }
+
++
++#ifdef CONFIG_PHYLIB
++/*
++ * MMIO/PHYdev support
++ */
++
++static int igb_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
++{
++ struct e1000_hw *hw = bus->priv;
++ u16 out;
++ int err;
++
++ err = igb_read_reg_gs40g(hw, mii_id, regnum, &out);
++ if (err)
++ return err;
++ return out;
++}
++
++static int igb_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
++ u16 val)
++{
++ struct e1000_hw *hw = bus->priv;
++
++ return igb_write_reg_gs40g(hw, mii_id, regnum, val);
++}
++
++static int igb_enet_mdio_reset(struct mii_bus *bus)
++{
++ udelay(300);
++ return 0;
++}
++
++static void igb_enet_mii_link(struct net_device *netdev)
++{
++}
++
++/* Probe the mdio bus for phys and connect them */
++static int igb_enet_mii_probe(struct net_device *netdev)
++{
++ struct igb_adapter *adapter = netdev_priv(netdev);
++ struct e1000_hw *hw = &adapter->hw;
++ struct phy_device *phy_dev = NULL;
++ int phy_id;
++
++ /* check for attached phy */
++ for (phy_id = 0; (phy_id < PHY_MAX_ADDR); phy_id++) {
++ if (hw->mii_bus->phy_map[phy_id]) {
++ phy_dev = hw->mii_bus->phy_map[phy_id];
++ break;
++ }
++ }
++ if (!phy_dev) {
++ netdev_err(netdev, "no PHY found\n");
++ return -ENODEV;
++ }
++
++ hw->phy_interface = PHY_INTERFACE_MODE_RGMII;
++ phy_dev = phy_connect(netdev, dev_name(&phy_dev->dev),
++ igb_enet_mii_link, hw->phy_interface);
++ if (IS_ERR(phy_dev)) {
++ netdev_err(netdev, "could not attach to PHY\n");
++ return PTR_ERR(phy_dev);
++ }
++
++ hw->phy_dev = phy_dev;
++ netdev_info(netdev, "igb PHY driver [%s] (mii_bus:phy_addr=%s)\n",
++ hw->phy_dev->drv->name, dev_name(&hw->phy_dev->dev));
++
++ return 0;
++}
++
++/* Create and register mdio bus */
++static int igb_enet_mii_init(struct pci_dev *pdev)
++{
++ struct mii_bus *mii_bus;
++ struct net_device *netdev = pci_get_drvdata(pdev);
++ struct igb_adapter *adapter = netdev_priv(netdev);
++ struct e1000_hw *hw = &adapter->hw;
++ int err;
++
++ mii_bus = mdiobus_alloc();
++ if (mii_bus == NULL) {
++ err = -ENOMEM;
++ goto err_out;
++ }
++
++ mii_bus->name = "igb_enet_mii_bus";
++ mii_bus->read = igb_enet_mdio_read;
++ mii_bus->write = igb_enet_mdio_write;
++ mii_bus->reset = igb_enet_mdio_reset;
++ snprintf(mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
++ pci_name(pdev), hw->device_id + 1);
++ mii_bus->priv = hw;
++ mii_bus->parent = &pdev->dev;
++ mii_bus->phy_mask = ~(1 << hw->phy.addr);
++
++ err = mdiobus_register(mii_bus);
++ if (err) {
++ printk(KERN_ERR "failed to register mii_bus: %d\n", err);
++ goto err_out_free_mdiobus;
++ }
++ hw->mii_bus = mii_bus;
++
++ return 0;
++
++err_out_free_mdiobus:
++ mdiobus_free(mii_bus);
++err_out:
++ return err;
++}
++
++static void igb_enet_mii_remove(struct e1000_hw *hw)
++{
++ if (hw->mii_bus) {
++ mdiobus_unregister(hw->mii_bus);
++ mdiobus_free(hw->mii_bus);
++ }
++}
++#endif /* CONFIG_PHYLIB */
++
+ /**
+ * igb_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+@@ -2585,6 +2706,13 @@ static int igb_probe(struct pci_dev *pde
+ }
+
+ pm_runtime_put_noidle(&pdev->dev);
++
++#ifdef CONFIG_PHYLIB
++ /* create and register the mdio bus if using ext phy */
++ if (rd32(E1000_MDICNFG) & E1000_MDICNFG_EXT_MDIO)
++ igb_enet_mii_init(pdev);
++#endif
++
+ return 0;
+
+ err_register:
+@@ -2728,6 +2856,10 @@ static void igb_remove(struct pci_dev *p
+ struct e1000_hw *hw = &adapter->hw;
+
+ pm_runtime_get_noresume(&pdev->dev);
++#ifdef CONFIG_PHYLIB
++ if (rd32(E1000_MDICNFG) & E1000_MDICNFG_EXT_MDIO)
++ igb_enet_mii_remove(hw);
++#endif
+ #ifdef CONFIG_IGB_HWMON
+ igb_sysfs_exit(adapter);
+ #endif
+@@ -3032,6 +3164,12 @@ static int __igb_open(struct net_device
+ if (!resuming)
+ pm_runtime_put(&pdev->dev);
+
++#ifdef CONFIG_PHYLIB
++ /* Probe and connect to PHY if using ext phy */
++ if (rd32(E1000_MDICNFG) & E1000_MDICNFG_EXT_MDIO)
++ igb_enet_mii_probe(netdev);
++#endif
++
+ /* start the watchdog. */
+ hw->mac.get_link_status = 1;
+ schedule_work(&adapter->watchdog_task);
+@@ -7087,21 +7225,41 @@ void igb_alloc_rx_buffers(struct igb_rin
+ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+ {
+ struct igb_adapter *adapter = netdev_priv(netdev);
++ struct e1000_hw *hw = &adapter->hw;
+ struct mii_ioctl_data *data = if_mii(ifr);
+
+- if (adapter->hw.phy.media_type != e1000_media_type_copper)
++ if (adapter->hw.phy.media_type != e1000_media_type_copper &&
++ !(rd32(E1000_MDICNFG) & E1000_MDICNFG_EXT_MDIO))
+ return -EOPNOTSUPP;
+
+ switch (cmd) {
+ case SIOCGMIIPHY:
+- data->phy_id = adapter->hw.phy.addr;
++ data->phy_id = hw->phy.addr;
+ break;
+ case SIOCGMIIREG:
+- if (igb_read_phy_reg(&adapter->hw, data->reg_num & 0x1F,
+- &data->val_out))
+- return -EIO;
++ if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211) {
++ if (igb_read_reg_gs40g(hw, data->phy_id,
++ data->reg_num & 0x1F,
++ &data->val_out))
++ return -EIO;
++ } else {
++ if (igb_read_phy_reg(hw, data->reg_num & 0x1F,
++ &data->val_out))
++ return -EIO;
++ }
+ break;
+ case SIOCSMIIREG:
++ if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211) {
++ if (igb_write_reg_gs40g(hw, data->phy_id,
++ data->reg_num & 0x1F,
++ data->val_in))
++ return -EIO;
++ } else {
++ if (igb_write_phy_reg(hw, data->reg_num & 0x1F,
++ data->val_in))
++ return -EIO;
++ }
++ break;
+ default:
+ return -EOPNOTSUPP;
+ }
diff --git a/target/linux/imx6/patches-3.14/205-phy-add-driver-for-GW16083-Ethernet-Expansion-Mezzan.patch b/target/linux/imx6/patches-3.14/205-phy-add-driver-for-GW16083-Ethernet-Expansion-Mezzan.patch
new file mode 100644
index 0000000000..f1d76a11f3
--- /dev/null
+++ b/target/linux/imx6/patches-3.14/205-phy-add-driver-for-GW16083-Ethernet-Expansion-Mezzan.patch
@@ -0,0 +1,27 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -270,6 +270,14 @@ endif # RTL8366_SMI
+
+ source "drivers/net/phy/b53/Kconfig"
+
++config GATEWORKS_GW16083
++ tristate "Gateworks GW16083 Ethernet Expansion Mezzanine"
++ ---help---
++ The Gateworks GW16083 Ethernet Expansion Mezzanine connects to a
++ Gateworks Ventana baseboard and provides a 7-port GbE managed
++ Ethernet switch with 4 dedicated GbE RJ45 ports, and 2 Gbe/SFP
++ ports"
++
+ endif # PHYLIB
+
+ config MICREL_KS8995MA
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -39,6 +39,7 @@ obj-$(CONFIG_NATIONAL_PHY) += national.o
+ obj-$(CONFIG_DP83640_PHY) += dp83640.o
+ obj-$(CONFIG_STE10XP) += ste10Xp.o
+ obj-$(CONFIG_MICREL_PHY) += micrel.o
++obj-$(CONFIG_GATEWORKS_GW16083) += gw16083.o
+ obj-$(CONFIG_MDIO_OCTEON) += mdio-octeon.o
+ obj-$(CONFIG_MICREL_KS8995MA) += spi_ks8995.o
+ obj-$(CONFIG_AT803X_PHY) += at803x.o
diff --git a/target/linux/imx6/patches-3.14/206-ARM-imx-ventana-added-GW16083-to-device-tree.patch b/target/linux/imx6/patches-3.14/206-ARM-imx-ventana-added-GW16083-to-device-tree.patch
new file mode 100644
index 0000000000..cc5f920267
--- /dev/null
+++ b/target/linux/imx6/patches-3.14/206-ARM-imx-ventana-added-GW16083-to-device-tree.patch
@@ -0,0 +1,56 @@
+--- a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
++++ b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
+@@ -201,6 +201,11 @@
+ };
+ };
+ };
++
++ gw16083: gw16083@52 {
++ compatible = "gateworks,gw16083";
++ reg = <0x52>;
++ };
+ };
+
+ &i2c3 {
+--- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
++++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
+@@ -268,6 +268,11 @@
+ };
+ };
+ };
++
++ gw16083: gw16083@52 {
++ compatible = "gateworks,gw16083";
++ reg = <0x52>;
++ };
+ };
+
+ &i2c3 {
+--- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
++++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
+@@ -289,6 +289,11 @@
+ };
+ };
+ };
++
++ gw16083: gw16083@52 {
++ compatible = "gateworks,gw16083";
++ reg = <0x52>;
++ };
+ };
+
+ &i2c3 {
+--- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
++++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
+@@ -317,6 +317,11 @@
+ compatible = "sil,si52147";
+ reg = <0x6b>;
+ };
++
++ gw16083: gw16083@52 {
++ compatible = "gateworks,gw16083";
++ reg = <0x52>;
++ };
+ };
+
+ &i2c3 {