From cead8f9dfd8395577c6274e34fd592bcf76afe1c Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Fri, 10 Feb 2017 17:44:44 +0100 Subject: apm821xx: remove 4.4 kernel support Signed-off-by: Christian Lamparter --- .../702-powerpc_ibm_phy_add_dt_parser.patch | 328 --------------------- 1 file changed, 328 deletions(-) delete mode 100644 target/linux/apm821xx/patches-4.4/702-powerpc_ibm_phy_add_dt_parser.patch (limited to 'target/linux/apm821xx/patches-4.4/702-powerpc_ibm_phy_add_dt_parser.patch') diff --git a/target/linux/apm821xx/patches-4.4/702-powerpc_ibm_phy_add_dt_parser.patch b/target/linux/apm821xx/patches-4.4/702-powerpc_ibm_phy_add_dt_parser.patch deleted file mode 100644 index c84e761ed0..0000000000 --- a/target/linux/apm821xx/patches-4.4/702-powerpc_ibm_phy_add_dt_parser.patch +++ /dev/null @@ -1,328 +0,0 @@ -From 59b394d0d2b2e11687e757820c52d6470d15a9c5 Mon Sep 17 00:00:00 2001 -From: Christian Lamparter -Date: Mon, 13 Jun 2016 15:42:21 +0200 -Subject: [PATCH] phy device tree support for emac - ---- - drivers/net/ethernet/ibm/emac/core.c | 261 +++++++++++++++++++++++++++++++++++ - drivers/net/ethernet/ibm/emac/core.h | 4 + - 2 files changed, 265 insertions(+) - ---- a/drivers/net/ethernet/ibm/emac/core.c -+++ b/drivers/net/ethernet/ibm/emac/core.c -@@ -42,6 +42,7 @@ - #include - #include - #include -+#include - #include - - #include -@@ -2392,6 +2393,246 @@ static int emac_read_uint_prop(struct de - return 0; - } - -+static void emac_adjust_link(struct net_device *ndev) -+{ -+ struct emac_instance *dev = netdev_priv(ndev); -+ struct phy_device *phy = dev->phy_dev; -+ -+ dev->phy.autoneg = phy->autoneg; -+ dev->phy.speed = phy->speed; -+ dev->phy.duplex = phy->duplex; -+ dev->phy.pause = phy->pause; -+ dev->phy.asym_pause = phy->asym_pause; -+ dev->phy.advertising = phy->advertising; -+} -+ -+static int emac_mii_bus_read(struct mii_bus *bus, int addr, int regnum) -+{ -+ return emac_mdio_read(bus->priv, addr, regnum); -+} -+ -+static int emac_mii_bus_write(struct mii_bus *bus, int addr, int regnum, u16 val) -+{ -+ emac_mdio_write(bus->priv, addr, regnum, val); -+ return 0; -+} -+ -+static int emac_mii_bus_reset(struct mii_bus *bus) -+{ -+ struct emac_instance *dev = netdev_priv(bus->priv); -+ -+ emac_mii_reset_phy(&dev->phy); -+ return 0; -+} -+ -+static int emac_mdio_setup_aneg(struct mii_phy *phy, u32 advertise) -+{ -+ struct net_device *ndev = phy->dev; -+ struct emac_instance *dev = netdev_priv(ndev); -+ -+ dev->phy.autoneg = AUTONEG_ENABLE; -+ dev->phy.speed = SPEED_1000; -+ dev->phy.duplex = DUPLEX_FULL; -+ dev->phy.advertising = advertise; -+ phy->autoneg = AUTONEG_ENABLE; -+ phy->speed = dev->phy.speed; -+ phy->duplex = dev->phy.duplex; -+ phy->advertising = advertise; -+ return phy_start_aneg(dev->phy_dev); -+} -+ -+static int emac_mdio_setup_forced(struct mii_phy *phy, int speed, int fd) -+{ -+ struct net_device *ndev = phy->dev; -+ struct emac_instance *dev = netdev_priv(ndev); -+ -+ dev->phy.autoneg = AUTONEG_DISABLE; -+ dev->phy.speed = speed; -+ dev->phy.duplex = fd; -+ phy->autoneg = AUTONEG_DISABLE; -+ phy->speed = speed; -+ phy->duplex = fd; -+ return phy_start_aneg(dev->phy_dev); -+} -+ -+static int emac_mdio_poll_link(struct mii_phy *phy) -+{ -+ struct net_device *ndev = phy->dev; -+ struct emac_instance *dev = netdev_priv(ndev); -+ int res; -+ -+ res = phy_read_status(dev->phy_dev); -+ if (res) { -+ dev_err(&dev->ndev->dev, "link update failed (%d).", res); -+ return ethtool_op_get_link(ndev); -+ } -+ -+ return dev->phy_dev->link; -+} -+ -+static int emac_mdio_read_link(struct mii_phy *phy) -+{ -+ struct net_device *ndev = phy->dev; -+ struct emac_instance *dev = netdev_priv(ndev); -+ int res; -+ -+ res = phy_read_status(dev->phy_dev); -+ if (res) -+ return res; -+ -+ dev->phy.speed = phy->speed; -+ dev->phy.duplex = phy->duplex; -+ dev->phy.pause = phy->pause; -+ dev->phy.asym_pause = phy->asym_pause; -+ return 0; -+} -+ -+static int emac_mdio_init_phy(struct mii_phy *phy) -+{ -+ struct net_device *ndev = phy->dev; -+ struct emac_instance *dev = netdev_priv(ndev); -+ -+ phy_start(dev->phy_dev); -+ dev->phy.autoneg = phy->autoneg; -+ dev->phy.speed = phy->speed; -+ dev->phy.duplex = phy->duplex; -+ dev->phy.advertising = phy->advertising; -+ dev->phy.pause = phy->pause; -+ dev->phy.asym_pause = phy->asym_pause; -+ -+ return phy_init_hw(dev->phy_dev); -+} -+ -+static const struct mii_phy_ops emac_dt_mdio_phy_ops = { -+ .init = emac_mdio_init_phy, -+ .setup_aneg = emac_mdio_setup_aneg, -+ .setup_forced = emac_mdio_setup_forced, -+ .poll_link = emac_mdio_poll_link, -+ .read_link = emac_mdio_read_link, -+}; -+ -+static void emac_dt_phy_mdio_cleanup(struct emac_instance *dev) -+{ -+ if (dev->mii_bus) { -+ if (dev->mii_bus->state == MDIOBUS_REGISTERED) -+ mdiobus_unregister(dev->mii_bus); -+ mdiobus_free(dev->mii_bus); -+ dev->mii_bus = NULL; -+ } -+ kfree(dev->phy.def); -+ dev->phy.def = NULL; -+} -+ -+static int emac_dt_mdio_probe(struct emac_instance *dev) -+{ -+ struct device_node *mii_np; -+ int res; -+ -+ mii_np = of_get_child_by_name(dev->ofdev->dev.of_node, "mdio"); -+ if (!mii_np) { -+ dev_err(&dev->ndev->dev, "no mdio definition found."); -+ return -ENODEV; -+ } -+ -+ if (!of_device_is_available(mii_np)) { -+ res = 1; -+ goto err_put_node; -+ } -+ -+ dev->mii_bus = mdiobus_alloc(); -+ if (!dev->mii_bus) { -+ res = -ENOMEM; -+ goto err_cleanup_mdio; -+ } -+ -+ dev->mii_bus->priv = dev->ndev; -+ dev->mii_bus->parent = dev->ndev->dev.parent; -+ dev->mii_bus->name = "emac_mdio"; -+ dev->mii_bus->read = &emac_mii_bus_read; -+ dev->mii_bus->write = &emac_mii_bus_write; -+ dev->mii_bus->reset = &emac_mii_bus_reset; -+ snprintf(dev->mii_bus->id, MII_BUS_ID_SIZE, "%s", dev->mii_bus->name); -+ -+ res = of_mdiobus_register(dev->mii_bus, mii_np); -+ if (res) { -+ dev_err(&dev->ndev->dev, "cannot register MDIO bus %s (%d)", -+ dev->mii_bus->name, res); -+ goto err_cleanup_mdio; -+ } -+ of_node_put(mii_np); -+ return 0; -+ -+ err_cleanup_mdio: -+ emac_dt_phy_mdio_cleanup(dev); -+ err_put_node: -+ of_node_put(mii_np); -+ return res; -+} -+ -+static int emac_dt_phy_probe(struct emac_instance *dev, -+ struct device_node *phy_handle) -+{ -+ u32 phy_flags = 0; -+ int res; -+ -+ res = of_property_read_u32(phy_handle, "phy-flags", &phy_flags); -+ if (res < 0 && res != -EINVAL) -+ return res; -+ -+ dev->phy.def = kzalloc(sizeof(*dev->phy.def), GFP_KERNEL); -+ if (!dev->phy.def) -+ return -ENOMEM; -+ -+ dev->phy_dev = of_phy_connect(dev->ndev, phy_handle, -+ &emac_adjust_link, phy_flags, -+ PHY_INTERFACE_MODE_RGMII); -+ if (!dev->phy_dev) { -+ dev_err(&dev->ndev->dev, "failed to connect to PHY."); -+ kfree(dev->phy.dev); -+ dev->phy.dev = NULL; -+ return -ENODEV; -+ } -+ -+ dev->phy.def->phy_id = dev->phy_dev->drv->phy_id; -+ dev->phy.def->phy_id_mask = dev->phy_dev->drv->phy_id_mask; -+ dev->phy.def->name = dev->phy_dev->drv->name; -+ dev->phy.def->ops = &emac_dt_mdio_phy_ops; -+ dev->phy.features = dev->phy_dev->supported; -+ dev->phy.address = dev->phy_dev->addr; -+ dev->phy.mode = dev->phy_dev->interface; -+ return 0; -+} -+ -+static int emac_probe_dt_phy(struct emac_instance *dev) -+{ -+ struct device_node *np = dev->ofdev->dev.of_node; -+ struct device_node *phy_handle; -+ int res = 0; -+ -+ phy_handle = of_parse_phandle(np, "phy-handle", 0); -+ -+ if (phy_handle) { -+ res = emac_dt_mdio_probe(dev); -+ if (res) -+ goto out; -+ -+ res = emac_dt_phy_probe(dev, phy_handle); -+ if (res) { -+ emac_dt_phy_mdio_cleanup(dev); -+ goto out; -+ } -+ -+ return 1; -+ } -+ -+ out: -+ of_node_put(phy_handle); -+ /* if no phy device was specifie in the device tree, then we fallback -+ * to the old emac_phy.c probe code for compatibility reasons. -+ */ -+ return res; -+} -+ - static int emac_init_phy(struct emac_instance *dev) - { - struct device_node *np = dev->ofdev->dev.of_node; -@@ -2462,6 +2703,18 @@ static int emac_init_phy(struct emac_ins - - emac_configure(dev); - -+ if (emac_has_feature(dev, EMAC_FTR_HAS_RGMII)) { -+ int res = emac_probe_dt_phy(dev); -+ -+ if (res == 1) -+ goto init_phy; -+ if (res < 0) -+ dev_err(&dev->ndev->dev, "failed to attach dt phy (%d).", -+ res); -+ -+ /* continue with old code */ -+ } -+ - if (dev->phy_address != 0xffffffff) - phy_map = ~(1 << dev->phy_address); - -@@ -2489,6 +2742,7 @@ static int emac_init_phy(struct emac_ins - return -ENXIO; - } - -+ init_phy: - /* Init PHY */ - if (dev->phy.def->ops->init) - dev->phy.def->ops->init(&dev->phy); -@@ -2907,6 +3161,8 @@ static int emac_probe(struct platform_de - /* I have a bad feeling about this ... */ - - err_detach_tah: -+ emac_dt_phy_mdio_cleanup(dev); -+ - if (emac_has_feature(dev, EMAC_FTR_HAS_TAH)) - tah_detach(dev->tah_dev, dev->tah_port); - err_detach_rgmii: -@@ -2957,6 +3213,11 @@ static int emac_remove(struct platform_d - if (emac_has_feature(dev, EMAC_FTR_HAS_ZMII)) - zmii_detach(dev->zmii_dev, dev->zmii_port); - -+ if (dev->phy_dev) -+ phy_disconnect(dev->phy_dev); -+ -+ emac_dt_phy_mdio_cleanup(dev); -+ - busy_phy_map &= ~(1 << dev->phy.address); - DBG(dev, "busy_phy_map now %#x" NL, busy_phy_map); - ---- a/drivers/net/ethernet/ibm/emac/core.h -+++ b/drivers/net/ethernet/ibm/emac/core.h -@@ -199,6 +199,10 @@ struct emac_instance { - struct emac_instance *mdio_instance; - struct mutex mdio_lock; - -+ /* Device-tree based phy configuration */ -+ struct mii_bus *mii_bus; -+ struct phy_device *phy_dev; -+ - /* ZMII infos if any */ - u32 zmii_ph; - u32 zmii_port; -- cgit v1.2.3