imx6: remove linux 4.4 support

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 0 insertions, 308 deletions

diff --git a/target/linux/imx6/patches-4.4/204-net-igb-register-mii_bus-for-SerDes-w-external-phy.patch b/target/linux/imx6/patches-4.4/204-net-igb-register-mii_bus-for-SerDes-w-external-phy.patch
deleted file mode 100644
index bbd972177b..0000000000
--- a/target/linux/imx6/patches-4.4/204-net-igb-register-mii_bus-for-SerDes-w-external-phy.patch
+++ /dev/null
@@ -1,308 +0,0 @@
-From 03855caf93f7332a3f320228ba1a0e7baae8a749 Mon Sep 17 00:00:00 2001
-From: Tim Harvey <tharvey@gateworks.com>
-Date: Thu, 15 May 2014 12:36:23 -0700
-Subject: [PATCH] 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>
----
- drivers/net/ethernet/intel/igb/e1000_82575.c |  15 +++
- drivers/net/ethernet/intel/igb/e1000_hw.h    |   7 ++
- drivers/net/ethernet/intel/igb/igb_main.c    | 168 ++++++++++++++++++++++++++-
- 3 files changed, 185 insertions(+), 5 deletions(-)
-
---- a/drivers/net/ethernet/intel/igb/e1000_82575.c
-+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
-@@ -613,13 +613,25 @@ 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:
-@@ -636,8 +648,11 @@ 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
-@@ -27,6 +27,7 @@
- #include <linux/delay.h>
- #include <linux/io.h>
- #include <linux/netdevice.h>
-+#include <linux/phy.h>
- 
- #include "e1000_regs.h"
- #include "e1000_defines.h"
-@@ -543,6 +544,12 @@ 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
-@@ -41,6 +41,7 @@
- #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>
-@@ -2217,6 +2218,126 @@ 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
-@@ -2641,6 +2762,13 @@ 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:
-@@ -2788,6 +2916,10 @@ 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
-@@ -3111,6 +3243,12 @@ 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);
-@@ -7102,21 +7240,41 @@ 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(&adapter->hw, data->phy_id,
-+					       data->reg_num & 0x1F,
-+			                       &data->val_out))
-+				return -EIO;
-+		} else {
-+			if (igb_read_phy_reg(&adapter->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;
- 	}