diff --git a/drivers/net/ethernet/ralink/mdio.c b/drivers/net/ethernet/ralink/mdio.c
new file mode 100644
index 0000000..de95ddb
--- /dev/null
+++ b/drivers/net/ethernet/ralink/mdio.c
@@ -0,0 +1,268 @@
+/*   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; version 2 of the License
+ *
+ *   Copyright (C) 2009-2015 John Crispin <blogic@openwrt.org>
+ *   Copyright (C) 2009-2015 Felix Fietkau <nbd@openwrt.org>
+ *   Copyright (C) 2013-2015 Michael Lee <igvtee@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/platform_device.h>
+#include <linux/phy.h>
+#include <linux/of_device.h>
+#include <linux/clk.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+
+#include "ralink_soc_eth.h"
+#include "mdio.h"
+
+static int fe_mdio_reset(struct mii_bus *bus)
+{
+	/* TODO */
+	return 0;
+}
+
+static void fe_phy_link_adjust(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&priv->phy->lock, flags);
+	for (i = 0; i < 8; i++) {
+		if (priv->phy->phy_node[i]) {
+			struct phy_device *phydev = priv->phy->phy[i];
+			int status_change = 0;
+
+			if (phydev->link)
+				if (priv->phy->duplex[i] != phydev->duplex ||
+				    priv->phy->speed[i] != phydev->speed)
+					status_change = 1;
+
+			if (phydev->link != priv->link[i])
+				status_change = 1;
+
+			switch (phydev->speed) {
+			case SPEED_1000:
+			case SPEED_100:
+			case SPEED_10:
+				priv->link[i] = phydev->link;
+				priv->phy->duplex[i] = phydev->duplex;
+				priv->phy->speed[i] = phydev->speed;
+
+				if (status_change &&
+				    priv->soc->mdio_adjust_link)
+					priv->soc->mdio_adjust_link(priv, i);
+				break;
+			}
+		}
+	}
+}
+
+int fe_connect_phy_node(struct fe_priv *priv, struct device_node *phy_node)
+{
+	const __be32 *_port = NULL;
+	struct phy_device *phydev;
+	int phy_mode, port;
+
+	_port = of_get_property(phy_node, "reg", NULL);
+
+	if (!_port || (be32_to_cpu(*_port) >= 0x20)) {
+		pr_err("%s: invalid port id\n", phy_node->name);
+		return -EINVAL;
+	}
+	port = be32_to_cpu(*_port);
+	phy_mode = of_get_phy_mode(phy_node);
+	if (phy_mode < 0) {
+		dev_err(priv->device, "incorrect phy-mode %d\n", phy_mode);
+		priv->phy->phy_node[port] = NULL;
+		return -EINVAL;
+	}
+
+	phydev = of_phy_connect(priv->netdev, phy_node, fe_phy_link_adjust,
+				0, phy_mode);
+	if (IS_ERR(phydev)) {
+		dev_err(priv->device, "could not connect to PHY\n");
+		priv->phy->phy_node[port] = NULL;
+		return PTR_ERR(phydev);
+	}
+
+	phydev->supported &= PHY_GBIT_FEATURES;
+	phydev->advertising = phydev->supported;
+	phydev->no_auto_carrier_off = 1;
+
+	dev_info(priv->device,
+		 "connected port %d to PHY at %s [uid=%08x, driver=%s]\n",
+		 port, dev_name(&phydev->dev), phydev->phy_id,
+		 phydev->drv->name);
+
+	priv->phy->phy[port] = phydev;
+	priv->link[port] = 0;
+
+	return 0;
+}
+
+static void phy_init(struct fe_priv *priv, struct phy_device *phy)
+{
+	phy_attach(priv->netdev, dev_name(&phy->dev), PHY_INTERFACE_MODE_MII);
+
+	phy->autoneg = AUTONEG_ENABLE;
+	phy->speed = 0;
+	phy->duplex = 0;
+	phy->supported &= PHY_BASIC_FEATURES;
+	phy->advertising = phy->supported | ADVERTISED_Autoneg;
+
+	phy_start_aneg(phy);
+}
+
+static int fe_phy_connect(struct fe_priv *priv)
+{
+	int i;
+
+	for (i = 0; i < 8; i++) {
+		if (priv->phy->phy_node[i]) {
+			if (!priv->phy_dev) {
+				priv->phy_dev = priv->phy->phy[i];
+				priv->phy_flags = FE_PHY_FLAG_PORT;
+			}
+		} else if (priv->mii_bus && priv->mii_bus->phy_map[i]) {
+			phy_init(priv, priv->mii_bus->phy_map[i]);
+			if (!priv->phy_dev) {
+				priv->phy_dev = priv->mii_bus->phy_map[i];
+				priv->phy_flags = FE_PHY_FLAG_ATTACH;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static void fe_phy_disconnect(struct fe_priv *priv)
+{
+	unsigned long flags;
+	int i;
+
+	for (i = 0; i < 8; i++)
+		if (priv->phy->phy_fixed[i]) {
+			spin_lock_irqsave(&priv->phy->lock, flags);
+			priv->link[i] = 0;
+			if (priv->soc->mdio_adjust_link)
+				priv->soc->mdio_adjust_link(priv, i);
+			spin_unlock_irqrestore(&priv->phy->lock, flags);
+		} else if (priv->phy->phy[i]) {
+			phy_disconnect(priv->phy->phy[i]);
+		} else if (priv->mii_bus && priv->mii_bus->phy_map[i]) {
+			phy_detach(priv->mii_bus->phy_map[i]);
+		}
+}
+
+static void fe_phy_start(struct fe_priv *priv)
+{
+	unsigned long flags;
+	int i;
+
+	for (i = 0; i < 8; i++) {
+		if (priv->phy->phy_fixed[i]) {
+			spin_lock_irqsave(&priv->phy->lock, flags);
+			priv->link[i] = 1;
+			if (priv->soc->mdio_adjust_link)
+				priv->soc->mdio_adjust_link(priv, i);
+			spin_unlock_irqrestore(&priv->phy->lock, flags);
+		} else if (priv->phy->phy[i]) {
+			phy_start(priv->phy->phy[i]);
+		}
+	}
+}
+
+static void fe_phy_stop(struct fe_priv *priv)
+{
+	unsigned long flags;
+	int i;
+
+	for (i = 0; i < 8; i++)
+		if (priv->phy->phy_fixed[i]) {
+			spin_lock_irqsave(&priv->phy->lock, flags);
+			priv->link[i] = 0;
+			if (priv->soc->mdio_adjust_link)
+				priv->soc->mdio_adjust_link(priv, i);
+			spin_unlock_irqrestore(&priv->phy->lock, flags);
+		} else if (priv->phy->phy[i]) {
+			phy_stop(priv->phy->phy[i]);
+		}
+}
+
+static struct fe_phy phy_ralink = {
+	.connect = fe_phy_connect,
+	.disconnect = fe_phy_disconnect,
+	.start = fe_phy_start,
+	.stop = fe_phy_stop,
+};
+
+int fe_mdio_init(struct fe_priv *priv)
+{
+	struct device_node *mii_np;
+	int err;
+
+	if (!priv->soc->mdio_read || !priv->soc->mdio_write)
+		return 0;
+
+	spin_lock_init(&phy_ralink.lock);
+	priv->phy = &phy_ralink;
+
+	mii_np = of_get_child_by_name(priv->device->of_node, "mdio-bus");
+	if (!mii_np) {
+		dev_err(priv->device, "no %s child node found", "mdio-bus");
+		return -ENODEV;
+	}
+
+	if (!of_device_is_available(mii_np)) {
+		err = 0;
+		goto err_put_node;
+	}
+
+	priv->mii_bus = mdiobus_alloc();
+	if (!priv->mii_bus) {
+		err = -ENOMEM;
+		goto err_put_node;
+	}
+
+	priv->mii_bus->name = "mdio";
+	priv->mii_bus->read = priv->soc->mdio_read;
+	priv->mii_bus->write = priv->soc->mdio_write;
+	priv->mii_bus->reset = fe_mdio_reset;
+	priv->mii_bus->priv = priv;
+	priv->mii_bus->parent = priv->device;
+
+	snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s", mii_np->name);
+	err = of_mdiobus_register(priv->mii_bus, mii_np);
+	if (err)
+		goto err_free_bus;
+
+	return 0;
+
+err_free_bus:
+	kfree(priv->mii_bus);
+err_put_node:
+	of_node_put(mii_np);
+	priv->mii_bus = NULL;
+	return err;
+}
+
+void fe_mdio_cleanup(struct fe_priv *priv)
+{
+	if (!priv->mii_bus)
+		return;
+
+	mdiobus_unregister(priv->mii_bus);
+	of_node_put(priv->mii_bus->dev.of_node);
+	kfree(priv->mii_bus);
+}
diff --git a/drivers/net/ethernet/ralink/mdio.h b/drivers/net/ethernet/ralink/mdio.h
new file mode 100644
index 0000000..b1bb8ec
--- /dev/null
+++ b/drivers/net/ethernet/ralink/mdio.h
@@ -0,0 +1,27 @@
+/*   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; version 2 of the License
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   Copyright (C) 2009-2015 John Crispin <blogic@openwrt.org>
+ *   Copyright (C) 2009-2015 Felix Fietkau <nbd@openwrt.org>
+ *   Copyright (C) 2013-2015 Michael Lee <igvtee@gmail.com>
+ */
+
+#ifndef _RALINK_MDIO_H__
+#define _RALINK_MDIO_H__
+
+#ifdef CONFIG_NET_RALINK_MDIO
+int fe_mdio_init(struct fe_priv *priv);
+void fe_mdio_cleanup(struct fe_priv *priv);
+int fe_connect_phy_node(struct fe_priv *priv,
+			struct device_node *phy_node);
+#else
+static inline int fe_mdio_init(struct fe_priv *priv) { return 0; }
+static inline void fe_mdio_cleanup(struct fe_priv *priv) {}
+#endif
+#endif
diff --git a/drivers/net/ethernet/ralink/ralink_ethtool.c b/drivers/net/ethernet/ralink/ralink_ethtool.c
new file mode 100644
index 0000000..2a2c431
--- /dev/null
+++ b/drivers/net/ethernet/ralink/ralink_ethtool.c
@@ -0,0 +1,235 @@
+/*   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; version 2 of the License
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   Copyright (C) 2009-2015 John Crispin <blogic@openwrt.org>
+ *   Copyright (C) 2009-2015 Felix Fietkau <nbd@openwrt.org>
+ *   Copyright (C) 2013-2015 Michael Lee <igvtee@gmail.com>
+ */
+
+#include "ralink_soc_eth.h"
+
+static const char fe_gdma_str[][ETH_GSTRING_LEN] = {
+#define _FE(x...)	# x,
+FE_STAT_REG_DECLARE
+#undef _FE
+};
+
+static int fe_get_settings(struct net_device *dev,
+			   struct ethtool_cmd *cmd)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	int err;
+
+	if (!priv->phy_dev)
+		goto out_gset;
+
+	if (priv->phy_flags == FE_PHY_FLAG_ATTACH) {
+		err = phy_read_status(priv->phy_dev);
+		if (err)
+			goto out_gset;
+	}
+
+	return phy_ethtool_gset(priv->phy_dev, cmd);
+
+out_gset:
+	return -ENODEV;
+}
+
+static int fe_set_settings(struct net_device *dev,
+			   struct ethtool_cmd *cmd)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+	if (!priv->phy_dev)
+		goto out_sset;
+
+	if (cmd->phy_address != priv->phy_dev->addr) {
+		if (priv->phy->phy_node[cmd->phy_address]) {
+			priv->phy_dev = priv->phy->phy[cmd->phy_address];
+			priv->phy_flags = FE_PHY_FLAG_PORT;
+		} else if (priv->mii_bus &&
+			   priv->mii_bus->phy_map[cmd->phy_address]) {
+			priv->phy_dev =
+				priv->mii_bus->phy_map[cmd->phy_address];
+			priv->phy_flags = FE_PHY_FLAG_ATTACH;
+		} else {
+			goto out_sset;
+		}
+	}
+
+	return phy_ethtool_sset(priv->phy_dev, cmd);
+
+out_sset:
+	return -ENODEV;
+}
+
+static void fe_get_drvinfo(struct net_device *dev,
+			   struct ethtool_drvinfo *info)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	struct fe_soc_data *soc = priv->soc;
+
+	strlcpy(info->driver, priv->device->driver->name, sizeof(info->driver));
+	strlcpy(info->version, FE_DRV_VERSION, sizeof(info->version));
+	strlcpy(info->bus_info, dev_name(priv->device), sizeof(info->bus_info));
+
+	if (soc->reg_table[FE_REG_FE_COUNTER_BASE])
+		info->n_stats = ARRAY_SIZE(fe_gdma_str);
+}
+
+static u32 fe_get_msglevel(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+	return priv->msg_enable;
+}
+
+static void fe_set_msglevel(struct net_device *dev, u32 value)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+	priv->msg_enable = value;
+}
+
+static int fe_nway_reset(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+	if (!priv->phy_dev)
+		goto out_nway_reset;
+
+	return genphy_restart_aneg(priv->phy_dev);
+
+out_nway_reset:
+	return -EOPNOTSUPP;
+}
+
+static u32 fe_get_link(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	int err;
+
+	if (!priv->phy_dev)
+		goto out_get_link;
+
+	if (priv->phy_flags == FE_PHY_FLAG_ATTACH) {
+		err = genphy_update_link(priv->phy_dev);
+		if (err)
+			goto out_get_link;
+	}
+
+	return priv->phy_dev->link;
+
+out_get_link:
+	return ethtool_op_get_link(dev);
+}
+
+static int fe_set_ringparam(struct net_device *dev,
+			    struct ethtool_ringparam *ring)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+	if ((ring->tx_pending < 2) ||
+	    (ring->rx_pending < 2) ||
+	    (ring->rx_pending > MAX_DMA_DESC) ||
+	    (ring->tx_pending > MAX_DMA_DESC))
+		return -EINVAL;
+
+	dev->netdev_ops->ndo_stop(dev);
+
+	priv->tx_ring.tx_ring_size = BIT(fls(ring->tx_pending) - 1);
+	priv->rx_ring.rx_ring_size = BIT(fls(ring->rx_pending) - 1);
+
+	dev->netdev_ops->ndo_open(dev);
+
+	return 0;
+}
+
+static void fe_get_ringparam(struct net_device *dev,
+			     struct ethtool_ringparam *ring)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+	ring->rx_max_pending = MAX_DMA_DESC;
+	ring->tx_max_pending = MAX_DMA_DESC;
+	ring->rx_pending = priv->rx_ring.rx_ring_size;
+	ring->tx_pending = priv->tx_ring.tx_ring_size;
+}
+
+static void fe_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+	switch (stringset) {
+	case ETH_SS_STATS:
+		memcpy(data, *fe_gdma_str, sizeof(fe_gdma_str));
+		break;
+	}
+}
+
+static int fe_get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(fe_gdma_str);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void fe_get_ethtool_stats(struct net_device *dev,
+				 struct ethtool_stats *stats, u64 *data)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	struct fe_hw_stats *hwstats = priv->hw_stats;
+	u64 *data_src, *data_dst;
+	unsigned int start;
+	int i;
+
+	if (netif_running(dev) && netif_device_present(dev)) {
+		if (spin_trylock(&hwstats->stats_lock)) {
+			fe_stats_update(priv);
+			spin_unlock(&hwstats->stats_lock);
+		}
+	}
+
+	do {
+		data_src = &hwstats->tx_bytes;
+		data_dst = data;
+		start = u64_stats_fetch_begin_irq(&hwstats->syncp);
+
+		for (i = 0; i < ARRAY_SIZE(fe_gdma_str); i++)
+			*data_dst++ = *data_src++;
+
+	} while (u64_stats_fetch_retry_irq(&hwstats->syncp, start));
+}
+
+static struct ethtool_ops fe_ethtool_ops = {
+	.get_settings		= fe_get_settings,
+	.set_settings		= fe_set_settings,
+	.get_drvinfo		= fe_get_drvinfo,
+	.get_msglevel		= fe_get_msglevel,
+	.set_msglevel		= fe_set_msglevel,
+	.nway_reset		= fe_nway_reset,
+	.get_link		= fe_get_link,
+	.set_ringparam		= fe_set_ringparam,
+	.get_ringparam		= fe_get_ringparam,
+};
+
+void fe_set_ethtool_ops(struct net_device *netdev)
+{
+	struct fe_priv *priv = netdev_priv(netdev);
+	struct fe_soc_data *soc = priv->soc;
+
+	if (soc->reg_table[FE_REG_FE_COUNTER_BASE]) {
+		fe_ethtool_ops.get_strings = fe_get_strings;
+		fe_ethtool_ops.get_sset_count = fe_get_sset_count;
+		fe_ethtool_ops.get_ethtool_stats = fe_get_ethtool_stats;
+	}
+
+	netdev->ethtool_ops = &fe_ethtool_ops;
+}
diff --git a/drivers/net/ethernet/ralink/ralink_ethtool.h b/drivers/net/ethernet/ralink/ralink_ethtool.h
new file mode 100644
index 0000000..955b84f
--- /dev/null
+++ b/drivers/net/ethernet/ralink/ralink_ethtool.h
@@ -0,0 +1,22 @@
+/*   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; version 2 of the License
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   Copyright (C) 2009-2015 John Crispin <blogic@openwrt.org>
+ *   Copyright (C) 2009-2015 Felix Fietkau <nbd@openwrt.org>
+ *   Copyright (C) 2013-2015 Michael Lee <igvtee@gmail.com>
+ */
+
+#ifndef FE_ETHTOOL_H
+#define FE_ETHTOOL_H
+
+#include <linux/ethtool.h>
+
+void fe_set_ethtool_ops(struct net_device *netdev);
+
+#endif /* FE_ETHTOOL_H */
diff --git a/drivers/net/ethernet/ralink/ralink_soc_eth.c b/drivers/net/ethernet/ralink/ralink_soc_eth.c
new file mode 100644
index 0000000..41b245f
--- /dev/null
+++ b/drivers/net/ethernet/ralink/ralink_soc_eth.c
@@ -0,0 +1,1622 @@
+/*   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; version 2 of the License
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   Copyright (C) 2009-2015 John Crispin <blogic@openwrt.org>
+ *   Copyright (C) 2009-2015 Felix Fietkau <nbd@openwrt.org>
+ *   Copyright (C) 2013-2015 Michael Lee <igvtee@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/platform_device.h>
+#include <linux/of_device.h>
+#include <linux/clk.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+#include <linux/if_vlan.h>
+#include <linux/reset.h>
+#include <linux/tcp.h>
+#include <linux/io.h>
+#include <linux/bug.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+
+#include "ralink_soc_eth.h"
+#include "esw_rt3050.h"
+#include "mdio.h"
+#include "ralink_ethtool.h"
+
+#define	MAX_RX_LENGTH		1536
+#define FE_RX_ETH_HLEN		(VLAN_ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)
+#define FE_RX_HLEN		(NET_SKB_PAD + FE_RX_ETH_HLEN + NET_IP_ALIGN)
+#define DMA_DUMMY_DESC		0xffffffff
+#define FE_DEFAULT_MSG_ENABLE \
+		(NETIF_MSG_DRV | \
+		NETIF_MSG_PROBE | \
+		NETIF_MSG_LINK | \
+		NETIF_MSG_TIMER | \
+		NETIF_MSG_IFDOWN | \
+		NETIF_MSG_IFUP | \
+		NETIF_MSG_RX_ERR | \
+		NETIF_MSG_TX_ERR)
+
+#define TX_DMA_DESP2_DEF	(TX_DMA_LS0 | TX_DMA_DONE)
+#define TX_DMA_DESP4_DEF	(TX_DMA_QN(3) | TX_DMA_PN(1))
+#define NEXT_TX_DESP_IDX(X)	(((X) + 1) & (ring->tx_ring_size - 1))
+#define NEXT_RX_DESP_IDX(X)	(((X) + 1) & (ring->rx_ring_size - 1))
+
+#define SYSC_REG_RSTCTRL	0x34
+
+static int fe_msg_level = -1;
+module_param_named(msg_level, fe_msg_level, int, 0);
+MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)");
+
+static const u16 fe_reg_table_default[FE_REG_COUNT] = {
+	[FE_REG_PDMA_GLO_CFG] = FE_PDMA_GLO_CFG,
+	[FE_REG_PDMA_RST_CFG] = FE_PDMA_RST_CFG,
+	[FE_REG_DLY_INT_CFG] = FE_DLY_INT_CFG,
+	[FE_REG_TX_BASE_PTR0] = FE_TX_BASE_PTR0,
+	[FE_REG_TX_MAX_CNT0] = FE_TX_MAX_CNT0,
+	[FE_REG_TX_CTX_IDX0] = FE_TX_CTX_IDX0,
+	[FE_REG_TX_DTX_IDX0] = FE_TX_DTX_IDX0,
+	[FE_REG_RX_BASE_PTR0] = FE_RX_BASE_PTR0,
+	[FE_REG_RX_MAX_CNT0] = FE_RX_MAX_CNT0,
+	[FE_REG_RX_CALC_IDX0] = FE_RX_CALC_IDX0,
+	[FE_REG_RX_DRX_IDX0] = FE_RX_DRX_IDX0,
+	[FE_REG_FE_INT_ENABLE] = FE_FE_INT_ENABLE,
+	[FE_REG_FE_INT_STATUS] = FE_FE_INT_STATUS,
+	[FE_REG_FE_DMA_VID_BASE] = FE_DMA_VID0,
+	[FE_REG_FE_COUNTER_BASE] = FE_GDMA1_TX_GBCNT,
+	[FE_REG_FE_RST_GL] = FE_FE_RST_GL,
+};
+
+static const u16 *fe_reg_table = fe_reg_table_default;
+
+struct fe_work_t {
+	int bitnr;
+	void (*action)(struct fe_priv *);
+};
+
+static void __iomem *fe_base;
+
+void fe_w32(u32 val, unsigned reg)
+{
+	__raw_writel(val, fe_base + reg);
+}
+
+u32 fe_r32(unsigned reg)
+{
+	return __raw_readl(fe_base + reg);
+}
+
+void fe_reg_w32(u32 val, enum fe_reg reg)
+{
+	fe_w32(val, fe_reg_table[reg]);
+}
+
+u32 fe_reg_r32(enum fe_reg reg)
+{
+	return fe_r32(fe_reg_table[reg]);
+}
+
+void fe_reset(u32 reset_bits)
+{
+	u32 t;
+
+	t = rt_sysc_r32(SYSC_REG_RSTCTRL);
+	t |= reset_bits;
+	rt_sysc_w32(t, SYSC_REG_RSTCTRL);
+	usleep_range(10, 20);
+
+	t &= ~reset_bits;
+	rt_sysc_w32(t, SYSC_REG_RSTCTRL);
+	usleep_range(10, 20);
+}
+
+static inline void fe_int_disable(u32 mask)
+{
+	fe_reg_w32(fe_reg_r32(FE_REG_FE_INT_ENABLE) & ~mask,
+		   FE_REG_FE_INT_ENABLE);
+	/* flush write */
+	fe_reg_r32(FE_REG_FE_INT_ENABLE);
+}
+
+static inline void fe_int_enable(u32 mask)
+{
+	fe_reg_w32(fe_reg_r32(FE_REG_FE_INT_ENABLE) | mask,
+		   FE_REG_FE_INT_ENABLE);
+	/* flush write */
+	fe_reg_r32(FE_REG_FE_INT_ENABLE);
+}
+
+static inline void fe_hw_set_macaddr(struct fe_priv *priv, unsigned char *mac)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->page_lock, flags);
+	fe_w32((mac[0] << 8) | mac[1], FE_GDMA1_MAC_ADRH);
+	fe_w32((mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5],
+	       FE_GDMA1_MAC_ADRL);
+	spin_unlock_irqrestore(&priv->page_lock, flags);
+}
+
+static int fe_set_mac_address(struct net_device *dev, void *p)
+{
+	int ret = eth_mac_addr(dev, p);
+
+	if (!ret) {
+		struct fe_priv *priv = netdev_priv(dev);
+
+		if (priv->soc->set_mac)
+			priv->soc->set_mac(priv, dev->dev_addr);
+		else
+			fe_hw_set_macaddr(priv, p);
+	}
+
+	return ret;
+}
+
+static inline int fe_max_frag_size(int mtu)
+{
+	/* make sure buf_size will be at least MAX_RX_LENGTH */
+	if (mtu + FE_RX_ETH_HLEN < MAX_RX_LENGTH)
+		mtu = MAX_RX_LENGTH - FE_RX_ETH_HLEN;
+
+	return SKB_DATA_ALIGN(FE_RX_HLEN + mtu) +
+		SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+}
+
+static inline int fe_max_buf_size(int frag_size)
+{
+	int buf_size = frag_size - NET_SKB_PAD - NET_IP_ALIGN -
+		       SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
+	BUG_ON(buf_size < MAX_RX_LENGTH);
+	return buf_size;
+}
+
+static inline void fe_get_rxd(struct fe_rx_dma *rxd, struct fe_rx_dma *dma_rxd)
+{
+	rxd->rxd1 = dma_rxd->rxd1;
+	rxd->rxd2 = dma_rxd->rxd2;
+	rxd->rxd3 = dma_rxd->rxd3;
+	rxd->rxd4 = dma_rxd->rxd4;
+}
+
+static inline void fe_set_txd(struct fe_tx_dma *txd, struct fe_tx_dma *dma_txd)
+{
+	dma_txd->txd1 = txd->txd1;
+	dma_txd->txd3 = txd->txd3;
+	dma_txd->txd4 = txd->txd4;
+	/* clean dma done flag last */
+	dma_txd->txd2 = txd->txd2;
+}
+
+static void fe_clean_rx(struct fe_priv *priv)
+{
+	int i;
+	struct fe_rx_ring *ring = &priv->rx_ring;
+
+	if (ring->rx_data) {
+		for (i = 0; i < ring->rx_ring_size; i++)
+			if (ring->rx_data[i]) {
+				if (ring->rx_dma && ring->rx_dma[i].rxd1)
+					dma_unmap_single(&priv->netdev->dev,
+							 ring->rx_dma[i].rxd1,
+							 ring->rx_buf_size,
+							 DMA_FROM_DEVICE);
+				put_page(virt_to_head_page(ring->rx_data[i]));
+			}
+
+		kfree(ring->rx_data);
+		ring->rx_data = NULL;
+	}
+
+	if (ring->rx_dma) {
+		dma_free_coherent(&priv->netdev->dev,
+				  ring->rx_ring_size * sizeof(*ring->rx_dma),
+				  ring->rx_dma,
+				  ring->rx_phys);
+		ring->rx_dma = NULL;
+	}
+}
+
+static int fe_alloc_rx(struct fe_priv *priv)
+{
+	struct net_device *netdev = priv->netdev;
+	struct fe_rx_ring *ring = &priv->rx_ring;
+	int i, pad;
+
+	ring->rx_data = kcalloc(ring->rx_ring_size, sizeof(*ring->rx_data),
+			GFP_KERNEL);
+	if (!ring->rx_data)
+		goto no_rx_mem;
+
+	for (i = 0; i < ring->rx_ring_size; i++) {
+		ring->rx_data[i] = netdev_alloc_frag(ring->frag_size);
+		if (!ring->rx_data[i])
+			goto no_rx_mem;
+	}
+
+	ring->rx_dma = dma_alloc_coherent(&netdev->dev,
+			ring->rx_ring_size * sizeof(*ring->rx_dma),
+			&ring->rx_phys,
+			GFP_ATOMIC | __GFP_ZERO);
+	if (!ring->rx_dma)
+		goto no_rx_mem;
+
+	if (priv->flags & FE_FLAG_RX_2B_OFFSET)
+		pad = 0;
+	else
+		pad = NET_IP_ALIGN;
+	for (i = 0; i < ring->rx_ring_size; i++) {
+		dma_addr_t dma_addr = dma_map_single(&netdev->dev,
+				ring->rx_data[i] + NET_SKB_PAD + pad,
+				ring->rx_buf_size,
+				DMA_FROM_DEVICE);
+		if (unlikely(dma_mapping_error(&netdev->dev, dma_addr)))
+			goto no_rx_mem;
+		ring->rx_dma[i].rxd1 = (unsigned int)dma_addr;
+
+		if (priv->flags & FE_FLAG_RX_SG_DMA)
+			ring->rx_dma[i].rxd2 = RX_DMA_PLEN0(ring->rx_buf_size);
+		else
+			ring->rx_dma[i].rxd2 = RX_DMA_LSO;
+	}
+	ring->rx_calc_idx = ring->rx_ring_size - 1;
+	/* make sure that all changes to the dma ring are flushed before we
+	 * continue
+	 */
+	wmb();
+
+	fe_reg_w32(ring->rx_phys, FE_REG_RX_BASE_PTR0);
+	fe_reg_w32(ring->rx_ring_size, FE_REG_RX_MAX_CNT0);
+	fe_reg_w32(ring->rx_calc_idx, FE_REG_RX_CALC_IDX0);
+	fe_reg_w32(FE_PST_DRX_IDX0, FE_REG_PDMA_RST_CFG);
+
+	return 0;
+
+no_rx_mem:
+	return -ENOMEM;
+}
+
+static void fe_txd_unmap(struct device *dev, struct fe_tx_buf *tx_buf)
+{
+	if (tx_buf->flags & FE_TX_FLAGS_SINGLE0) {
+		dma_unmap_single(dev,
+				 dma_unmap_addr(tx_buf, dma_addr0),
+				 dma_unmap_len(tx_buf, dma_len0),
+				 DMA_TO_DEVICE);
+	} else if (tx_buf->flags & FE_TX_FLAGS_PAGE0) {
+		dma_unmap_page(dev,
+			       dma_unmap_addr(tx_buf, dma_addr0),
+			       dma_unmap_len(tx_buf, dma_len0),
+			       DMA_TO_DEVICE);
+	}
+	if (tx_buf->flags & FE_TX_FLAGS_PAGE1)
+		dma_unmap_page(dev,
+			       dma_unmap_addr(tx_buf, dma_addr1),
+			       dma_unmap_len(tx_buf, dma_len1),
+			       DMA_TO_DEVICE);
+
+	tx_buf->flags = 0;
+	if (tx_buf->skb && (tx_buf->skb != (struct sk_buff *)DMA_DUMMY_DESC))
+		dev_kfree_skb_any(tx_buf->skb);
+	tx_buf->skb = NULL;
+}
+
+static void fe_clean_tx(struct fe_priv *priv)
+{
+	int i;
+	struct device *dev = &priv->netdev->dev;
+	struct fe_tx_ring *ring = &priv->tx_ring;
+
+	if (ring->tx_buf) {
+		for (i = 0; i < ring->tx_ring_size; i++)
+			fe_txd_unmap(dev, &ring->tx_buf[i]);
+		kfree(ring->tx_buf);
+		ring->tx_buf = NULL;
+	}
+
+	if (ring->tx_dma) {
+		dma_free_coherent(dev,
+				  ring->tx_ring_size * sizeof(*ring->tx_dma),
+				  ring->tx_dma,
+				  ring->tx_phys);
+		ring->tx_dma = NULL;
+	}
+
+	netdev_reset_queue(priv->netdev);
+}
+
+static int fe_alloc_tx(struct fe_priv *priv)
+{
+	int i;
+	struct fe_tx_ring *ring = &priv->tx_ring;
+
+	ring->tx_free_idx = 0;
+	ring->tx_next_idx = 0;
+	ring->tx_thresh = max((unsigned long)ring->tx_ring_size >> 2,
+			      MAX_SKB_FRAGS);
+
+	ring->tx_buf = kcalloc(ring->tx_ring_size, sizeof(*ring->tx_buf),
+			GFP_KERNEL);
+	if (!ring->tx_buf)
+		goto no_tx_mem;
+
+	ring->tx_dma = dma_alloc_coherent(&priv->netdev->dev,
+			ring->tx_ring_size * sizeof(*ring->tx_dma),
+			&ring->tx_phys,
+			GFP_ATOMIC | __GFP_ZERO);
+	if (!ring->tx_dma)
+		goto no_tx_mem;
+
+	for (i = 0; i < ring->tx_ring_size; i++) {
+		if (priv->soc->tx_dma)
+			priv->soc->tx_dma(&ring->tx_dma[i]);
+		ring->tx_dma[i].txd2 = TX_DMA_DESP2_DEF;
+	}
+	/* make sure that all changes to the dma ring are flushed before we
+	 * continue
+	 */
+	wmb();
+
+	fe_reg_w32(ring->tx_phys, FE_REG_TX_BASE_PTR0);
+	fe_reg_w32(ring->tx_ring_size, FE_REG_TX_MAX_CNT0);
+	fe_reg_w32(0, FE_REG_TX_CTX_IDX0);
+	fe_reg_w32(FE_PST_DTX_IDX0, FE_REG_PDMA_RST_CFG);
+
+	return 0;
+
+no_tx_mem:
+	return -ENOMEM;
+}
+
+static int fe_init_dma(struct fe_priv *priv)
+{
+	int err;
+
+	err = fe_alloc_tx(priv);
+	if (err)
+		return err;
+
+	err = fe_alloc_rx(priv);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static void fe_free_dma(struct fe_priv *priv)
+{
+	fe_clean_tx(priv);
+	fe_clean_rx(priv);
+}
+
+void fe_stats_update(struct fe_priv *priv)
+{
+	struct fe_hw_stats *hwstats = priv->hw_stats;
+	unsigned int base = fe_reg_table[FE_REG_FE_COUNTER_BASE];
+	u64 stats;
+
+	u64_stats_update_begin(&hwstats->syncp);
+
+	if (IS_ENABLED(CONFIG_SOC_MT7621)) {
+		hwstats->rx_bytes			+= fe_r32(base);
+		stats					=  fe_r32(base + 0x04);
+		if (stats)
+			hwstats->rx_bytes		+= (stats << 32);
+		hwstats->rx_packets			+= fe_r32(base + 0x08);
+		hwstats->rx_overflow			+= fe_r32(base + 0x10);
+		hwstats->rx_fcs_errors			+= fe_r32(base + 0x14);
+		hwstats->rx_short_errors		+= fe_r32(base + 0x18);
+		hwstats->rx_long_errors			+= fe_r32(base + 0x1c);
+		hwstats->rx_checksum_errors		+= fe_r32(base + 0x20);
+		hwstats->rx_flow_control_packets	+= fe_r32(base + 0x24);
+		hwstats->tx_skip			+= fe_r32(base + 0x28);
+		hwstats->tx_collisions			+= fe_r32(base + 0x2c);
+		hwstats->tx_bytes			+= fe_r32(base + 0x30);
+		stats					=  fe_r32(base + 0x34);
+		if (stats)
+			hwstats->tx_bytes		+= (stats << 32);
+		hwstats->tx_packets			+= fe_r32(base + 0x38);
+	} else {
+		hwstats->tx_bytes			+= fe_r32(base);
+		hwstats->tx_packets			+= fe_r32(base + 0x04);
+		hwstats->tx_skip			+= fe_r32(base + 0x08);
+		hwstats->tx_collisions			+= fe_r32(base + 0x0c);
+		hwstats->rx_bytes			+= fe_r32(base + 0x20);
+		hwstats->rx_packets			+= fe_r32(base + 0x24);
+		hwstats->rx_overflow			+= fe_r32(base + 0x28);
+		hwstats->rx_fcs_errors			+= fe_r32(base + 0x2c);
+		hwstats->rx_short_errors		+= fe_r32(base + 0x30);
+		hwstats->rx_long_errors			+= fe_r32(base + 0x34);
+		hwstats->rx_checksum_errors		+= fe_r32(base + 0x38);
+		hwstats->rx_flow_control_packets	+= fe_r32(base + 0x3c);
+	}
+
+	u64_stats_update_end(&hwstats->syncp);
+}
+
+static struct rtnl_link_stats64 *fe_get_stats64(struct net_device *dev,
+				struct rtnl_link_stats64 *storage)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	struct fe_hw_stats *hwstats = priv->hw_stats;
+	unsigned int base = fe_reg_table[FE_REG_FE_COUNTER_BASE];
+	unsigned int start;
+
+	if (!base) {
+		netdev_stats_to_stats64(storage, &dev->stats);
+		return storage;
+	}
+
+	if (netif_running(dev) && netif_device_present(dev)) {
+		if (spin_trylock(&hwstats->stats_lock)) {
+			fe_stats_update(priv);
+			spin_unlock(&hwstats->stats_lock);
+		}
+	}
+
+	do {
+		start = u64_stats_fetch_begin_irq(&hwstats->syncp);
+		storage->rx_packets = hwstats->rx_packets;
+		storage->tx_packets = hwstats->tx_packets;
+		storage->rx_bytes = hwstats->rx_bytes;
+		storage->tx_bytes = hwstats->tx_bytes;
+		storage->collisions = hwstats->tx_collisions;
+		storage->rx_length_errors = hwstats->rx_short_errors +
+			hwstats->rx_long_errors;
+		storage->rx_over_errors = hwstats->rx_overflow;
+		storage->rx_crc_errors = hwstats->rx_fcs_errors;
+		storage->rx_errors = hwstats->rx_checksum_errors;
+		storage->tx_aborted_errors = hwstats->tx_skip;
+	} while (u64_stats_fetch_retry_irq(&hwstats->syncp, start));
+
+	storage->tx_errors = priv->netdev->stats.tx_errors;
+	storage->rx_dropped = priv->netdev->stats.rx_dropped;
+	storage->tx_dropped = priv->netdev->stats.tx_dropped;
+
+	return storage;
+}
+
+static int fe_vlan_rx_add_vid(struct net_device *dev,
+			      __be16 proto, u16 vid)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	u32 idx = (vid & 0xf);
+	u32 vlan_cfg;
+
+	if (!((fe_reg_table[FE_REG_FE_DMA_VID_BASE]) &&
+	      (dev->features & NETIF_F_HW_VLAN_CTAG_TX)))
+		return 0;
+
+	if (test_bit(idx, &priv->vlan_map)) {
+		netdev_warn(dev, "disable tx vlan offload\n");
+		dev->wanted_features &= ~NETIF_F_HW_VLAN_CTAG_TX;
+		netdev_update_features(dev);
+	} else {
+		vlan_cfg = fe_r32(fe_reg_table[FE_REG_FE_DMA_VID_BASE] +
+				((idx >> 1) << 2));
+		if (idx & 0x1) {
+			vlan_cfg &= 0xffff;
+			vlan_cfg |= (vid << 16);
+		} else {
+			vlan_cfg &= 0xffff0000;
+			vlan_cfg |= vid;
+		}
+		fe_w32(vlan_cfg, fe_reg_table[FE_REG_FE_DMA_VID_BASE] +
+				((idx >> 1) << 2));
+		set_bit(idx, &priv->vlan_map);
+	}
+
+	return 0;
+}
+
+static int fe_vlan_rx_kill_vid(struct net_device *dev,
+			       __be16 proto, u16 vid)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	u32 idx = (vid & 0xf);
+
+	if (!((fe_reg_table[FE_REG_FE_DMA_VID_BASE]) &&
+	      (dev->features & NETIF_F_HW_VLAN_CTAG_TX)))
+		return 0;
+
+	clear_bit(idx, &priv->vlan_map);
+
+	return 0;
+}
+
+static inline u32 fe_empty_txd(struct fe_tx_ring *ring)
+{
+	barrier();
+	return (u32)(ring->tx_ring_size -
+			((ring->tx_next_idx - ring->tx_free_idx) &
+			 (ring->tx_ring_size - 1)));
+}
+
+static int fe_tx_map_dma(struct sk_buff *skb, struct net_device *dev,
+			 int tx_num, struct fe_tx_ring *ring)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	struct skb_frag_struct *frag;
+	struct fe_tx_dma txd, *ptxd;
+	struct fe_tx_buf *tx_buf;
+	dma_addr_t mapped_addr;
+	unsigned int nr_frags;
+	u32 def_txd4;
+	int i, j, k, frag_size, frag_map_size, offset;
+
+	tx_buf = &ring->tx_buf[ring->tx_next_idx];
+	memset(tx_buf, 0, sizeof(*tx_buf));
+	memset(&txd, 0, sizeof(txd));
+	nr_frags = skb_shinfo(skb)->nr_frags;
+
+	/* init tx descriptor */
+	if (priv->soc->tx_dma)
+		priv->soc->tx_dma(&txd);
+	else
+		txd.txd4 = TX_DMA_DESP4_DEF;
+	def_txd4 = txd.txd4;
+
+	/* TX Checksum offload */
+	if (skb->ip_summed == CHECKSUM_PARTIAL)
+		txd.txd4 |= TX_DMA_CHKSUM;
+
+	/* VLAN header offload */
+	if (skb_vlan_tag_present(skb)) {
+		u16 tag = skb_vlan_tag_get(skb);
+
+		if (IS_ENABLED(CONFIG_SOC_MT7621))
+			txd.txd4 |= TX_DMA_INS_VLAN_MT7621 | tag;
+		else
+			txd.txd4 |= TX_DMA_INS_VLAN |
+				((tag >> VLAN_PRIO_SHIFT) << 4) |
+				(tag & 0xF);
+	}
+
+	/* TSO: fill MSS info in tcp checksum field */
+	if (skb_is_gso(skb)) {
+		if (skb_cow_head(skb, 0)) {
+			netif_warn(priv, tx_err, dev,
+				   "GSO expand head fail.\n");
+			goto err_out;
+		}
+		if (skb_shinfo(skb)->gso_type &
+				(SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
+			txd.txd4 |= TX_DMA_TSO;
+			tcp_hdr(skb)->check = htons(skb_shinfo(skb)->gso_size);
+		}
+	}
+
+	mapped_addr = dma_map_single(&dev->dev, skb->data,
+				     skb_headlen(skb), DMA_TO_DEVICE);
+	if (unlikely(dma_mapping_error(&dev->dev, mapped_addr)))
+		goto err_out;
+	txd.txd1 = mapped_addr;
+	txd.txd2 = TX_DMA_PLEN0(skb_headlen(skb));
+
+	tx_buf->flags |= FE_TX_FLAGS_SINGLE0;
+	dma_unmap_addr_set(tx_buf, dma_addr0, mapped_addr);
+	dma_unmap_len_set(tx_buf, dma_len0, skb_headlen(skb));
+
+	/* TX SG offload */
+	j = ring->tx_next_idx;
+	k = 0;
+	for (i = 0; i < nr_frags; i++) {
+		offset = 0;
+		frag = &skb_shinfo(skb)->frags[i];
+		frag_size = skb_frag_size(frag);
+
+		while (frag_size > 0) {
+			frag_map_size = min(frag_size, TX_DMA_BUF_LEN);
+			mapped_addr = skb_frag_dma_map(&dev->dev, frag, offset,
+						       frag_map_size,
+						       DMA_TO_DEVICE);
+			if (unlikely(dma_mapping_error(&dev->dev, mapped_addr)))
+				goto err_dma;
+
+			if (k & 0x1) {
+				j = NEXT_TX_DESP_IDX(j);
+				txd.txd1 = mapped_addr;
+				txd.txd2 = TX_DMA_PLEN0(frag_map_size);
+				txd.txd4 = def_txd4;
+
+				tx_buf = &ring->tx_buf[j];
+				memset(tx_buf, 0, sizeof(*tx_buf));
+
+				tx_buf->flags |= FE_TX_FLAGS_PAGE0;
+				dma_unmap_addr_set(tx_buf, dma_addr0,
+						   mapped_addr);
+				dma_unmap_len_set(tx_buf, dma_len0,
+						  frag_map_size);
+			} else {
+				txd.txd3 = mapped_addr;
+				txd.txd2 |= TX_DMA_PLEN1(frag_map_size);
+
+				tx_buf->skb = (struct sk_buff *)DMA_DUMMY_DESC;
+				tx_buf->flags |= FE_TX_FLAGS_PAGE1;
+				dma_unmap_addr_set(tx_buf, dma_addr1,
+						   mapped_addr);
+				dma_unmap_len_set(tx_buf, dma_len1,
+						  frag_map_size);
+
+				if (!((i == (nr_frags - 1)) &&
+				      (frag_map_size == frag_size))) {
+					fe_set_txd(&txd, &ring->tx_dma[j]);
+					memset(&txd, 0, sizeof(txd));
+				}
+			}
+			frag_size -= frag_map_size;
+			offset += frag_map_size;
+			k++;
+		}
+	}
+
+	/* set last segment */
+	if (k & 0x1)
+		txd.txd2 |= TX_DMA_LS1;
+	else
+		txd.txd2 |= TX_DMA_LS0;
+	fe_set_txd(&txd, &ring->tx_dma[j]);
+
+	/* store skb to cleanup */
+	tx_buf->skb = skb;
+
+	netdev_sent_queue(dev, skb->len);
+	skb_tx_timestamp(skb);
+
+	ring->tx_next_idx = NEXT_TX_DESP_IDX(j);
+	/* make sure that all changes to the dma ring are flushed before we
+	 * continue
+	 */
+	wmb();
+	if (unlikely(fe_empty_txd(ring) <= ring->tx_thresh)) {
+		netif_stop_queue(dev);
+		smp_mb();
+		if (unlikely(fe_empty_txd(ring) > ring->tx_thresh))
+			netif_wake_queue(dev);
+	}
+
+	if (netif_xmit_stopped(netdev_get_tx_queue(dev, 0)) || !skb->xmit_more)
+		fe_reg_w32(ring->tx_next_idx, FE_REG_TX_CTX_IDX0);
+
+	return 0;
+
+err_dma:
+	j = ring->tx_next_idx;
+	for (i = 0; i < tx_num; i++) {
+		ptxd = &ring->tx_dma[j];
+		tx_buf = &ring->tx_buf[j];
+
+		/* unmap dma */
+		fe_txd_unmap(&dev->dev, tx_buf);
+
+		ptxd->txd2 = TX_DMA_DESP2_DEF;
+		j = NEXT_TX_DESP_IDX(j);
+	}
+	/* make sure that all changes to the dma ring are flushed before we
+	 * continue
+	 */
+	wmb();
+
+err_out:
+	return -1;
+}
+
+static inline int fe_skb_padto(struct sk_buff *skb, struct fe_priv *priv)
+{
+	unsigned int len;
+	int ret;
+
+	ret = 0;
+	if (unlikely(skb->len < VLAN_ETH_ZLEN)) {
+		if ((priv->flags & FE_FLAG_PADDING_64B) &&
+		    !(priv->flags & FE_FLAG_PADDING_BUG))
+			return ret;
+
+		if (skb_vlan_tag_present(skb))
+			len = ETH_ZLEN;
+		else if (skb->protocol == cpu_to_be16(ETH_P_8021Q))
+			len = VLAN_ETH_ZLEN;
+		else if (!(priv->flags & FE_FLAG_PADDING_64B))
+			len = ETH_ZLEN;
+		else
+			return ret;
+
+		if (skb->len < len) {
+			ret = skb_pad(skb, len - skb->len);
+			if (ret < 0)
+				return ret;
+			skb->len = len;
+			skb_set_tail_pointer(skb, len);
+		}
+	}
+
+	return ret;
+}
+
+static inline int fe_cal_txd_req(struct sk_buff *skb)
+{
+	int i, nfrags;
+	struct skb_frag_struct *frag;
+
+	nfrags = 1;
+	if (skb_is_gso(skb)) {
+		for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+			frag = &skb_shinfo(skb)->frags[i];
+			nfrags += DIV_ROUND_UP(frag->size, TX_DMA_BUF_LEN);
+		}
+	} else {
+		nfrags += skb_shinfo(skb)->nr_frags;
+	}
+
+	return DIV_ROUND_UP(nfrags, 2);
+}
+
+static int fe_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	struct fe_tx_ring *ring = &priv->tx_ring;
+	struct net_device_stats *stats = &dev->stats;
+	int tx_num;
+	int len = skb->len;
+
+	if (fe_skb_padto(skb, priv)) {
+		netif_warn(priv, tx_err, dev, "tx padding failed!\n");
+		return NETDEV_TX_OK;
+	}
+
+	tx_num = fe_cal_txd_req(skb);
+	if (unlikely(fe_empty_txd(ring) <= tx_num)) {
+		netif_stop_queue(dev);
+		netif_err(priv, tx_queued, dev,
+			  "Tx Ring full when queue awake!\n");
+		return NETDEV_TX_BUSY;
+	}
+
+	if (fe_tx_map_dma(skb, dev, tx_num, ring) < 0) {
+		stats->tx_dropped++;
+	} else {
+		stats->tx_packets++;
+		stats->tx_bytes += len;
+	}
+
+	return NETDEV_TX_OK;
+}
+
+static inline void fe_rx_vlan(struct sk_buff *skb)
+{
+	struct ethhdr *ehdr;
+	u16 vlanid;
+
+	if (!__vlan_get_tag(skb, &vlanid)) {
+		/* pop the vlan tag */
+		ehdr = (struct ethhdr *)skb->data;
+		memmove(skb->data + VLAN_HLEN, ehdr, ETH_ALEN * 2);
+		skb_pull(skb, VLAN_HLEN);
+		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlanid);
+	}
+}
+
+static int fe_poll_rx(struct napi_struct *napi, int budget,
+		      struct fe_priv *priv, u32 rx_intr)
+{
+	struct net_device *netdev = priv->netdev;
+	struct net_device_stats *stats = &netdev->stats;
+	struct fe_soc_data *soc = priv->soc;
+	struct fe_rx_ring *ring = &priv->rx_ring;
+	int idx = ring->rx_calc_idx;
+	u32 checksum_bit;
+	struct sk_buff *skb;
+	u8 *data, *new_data;
+	struct fe_rx_dma *rxd, trxd;
+	int done = 0, pad;
+	bool rx_vlan = netdev->features & NETIF_F_HW_VLAN_CTAG_RX;
+
+	if (netdev->features & NETIF_F_RXCSUM)
+		checksum_bit = soc->checksum_bit;
+	else
+		checksum_bit = 0;
+
+	if (priv->flags & FE_FLAG_RX_2B_OFFSET)
+		pad = 0;
+	else
+		pad = NET_IP_ALIGN;
+
+	while (done < budget) {
+		unsigned int pktlen;
+		dma_addr_t dma_addr;
+
+		idx = NEXT_RX_DESP_IDX(idx);
+		rxd = &ring->rx_dma[idx];
+		data = ring->rx_data[idx];
+
+		fe_get_rxd(&trxd, rxd);
+		if (!(trxd.rxd2 & RX_DMA_DONE))
+			break;
+
+		/* alloc new buffer */
+		new_data = netdev_alloc_frag(ring->frag_size);
+		if (unlikely(!new_data)) {
+			stats->rx_dropped++;
+			goto release_desc;
+		}
+		dma_addr = dma_map_single(&netdev->dev,
+					  new_data + NET_SKB_PAD + pad,
+					  ring->rx_buf_size,
+					  DMA_FROM_DEVICE);
+		if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) {
+			put_page(virt_to_head_page(new_data));
+			goto release_desc;
+		}
+
+		/* receive data */
+		skb = build_skb(data, ring->frag_size);
+		if (unlikely(!skb)) {
+			put_page(virt_to_head_page(new_data));
+			goto release_desc;
+		}
+		skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN);
+
+		dma_unmap_single(&netdev->dev, trxd.rxd1,
+				 ring->rx_buf_size, DMA_FROM_DEVICE);
+		pktlen = RX_DMA_GET_PLEN0(trxd.rxd2);
+		skb->dev = netdev;
+		skb_put(skb, pktlen);
+		if (trxd.rxd4 & checksum_bit)
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+		else
+			skb_checksum_none_assert(skb);
+		if (rx_vlan)
+			fe_rx_vlan(skb);
+		skb->protocol = eth_type_trans(skb, netdev);
+
+		stats->rx_packets++;
+		stats->rx_bytes += pktlen;
+
+		napi_gro_receive(napi, skb);
+
+		ring->rx_data[idx] = new_data;
+		rxd->rxd1 = (unsigned int)dma_addr;
+
+release_desc:
+		if (priv->flags & FE_FLAG_RX_SG_DMA)
+			rxd->rxd2 = RX_DMA_PLEN0(ring->rx_buf_size);
+		else
+			rxd->rxd2 = RX_DMA_LSO;
+
+		ring->rx_calc_idx = idx;
+		/* make sure that all changes to the dma ring are flushed before
+		 * we continue
+		 */
+		wmb();
+		fe_reg_w32(ring->rx_calc_idx, FE_REG_RX_CALC_IDX0);
+		done++;
+	}
+
+	if (done < budget)
+		fe_reg_w32(rx_intr, FE_REG_FE_INT_STATUS);
+
+	return done;
+}
+
+static int fe_poll_tx(struct fe_priv *priv, int budget, u32 tx_intr,
+		      int *tx_again)
+{
+	struct net_device *netdev = priv->netdev;
+	struct device *dev = &netdev->dev;
+	unsigned int bytes_compl = 0;
+	struct sk_buff *skb;
+	struct fe_tx_buf *tx_buf;
+	int done = 0;
+	u32 idx, hwidx;
+	struct fe_tx_ring *ring = &priv->tx_ring;
+
+	idx = ring->tx_free_idx;
+	hwidx = fe_reg_r32(FE_REG_TX_DTX_IDX0);
+
+	while ((idx != hwidx) && budget) {
+		tx_buf = &ring->tx_buf[idx];
+		skb = tx_buf->skb;
+
+		if (!skb)
+			break;
+
+		if (skb != (struct sk_buff *)DMA_DUMMY_DESC) {
+			bytes_compl += skb->len;
+			done++;
+			budget--;
+		}
+		fe_txd_unmap(dev, tx_buf);
+		idx = NEXT_TX_DESP_IDX(idx);
+	}
+	ring->tx_free_idx = idx;
+
+	if (idx == hwidx) {
+		/* read hw index again make sure no new tx packet */
+		hwidx = fe_reg_r32(FE_REG_TX_DTX_IDX0);
+		if (idx == hwidx)
+			fe_reg_w32(tx_intr, FE_REG_FE_INT_STATUS);
+		else
+			*tx_again = 1;
+	} else {
+		*tx_again = 1;
+	}
+
+	if (done) {
+		netdev_completed_queue(netdev, done, bytes_compl);
+		smp_mb();
+		if (unlikely(netif_queue_stopped(netdev) &&
+			     (fe_empty_txd(ring) > ring->tx_thresh)))
+			netif_wake_queue(netdev);
+	}
+
+	return done;
+}
+
+static int fe_poll(struct napi_struct *napi, int budget)
+{
+	struct fe_priv *priv = container_of(napi, struct fe_priv, rx_napi);
+	struct fe_hw_stats *hwstat = priv->hw_stats;
+	int tx_done, rx_done, tx_again;
+	u32 status, fe_status, status_reg, mask;
+	u32 tx_intr, rx_intr, status_intr;
+
+	status = fe_reg_r32(FE_REG_FE_INT_STATUS);
+	fe_status = status;
+	tx_intr = priv->soc->tx_int;
+	rx_intr = priv->soc->rx_int;
+	status_intr = priv->soc->status_int;
+	tx_done = 0;
+	rx_done = 0;
+	tx_again = 0;
+
+	if (fe_reg_table[FE_REG_FE_INT_STATUS2]) {
+		fe_status = fe_reg_r32(FE_REG_FE_INT_STATUS2);
+		status_reg = FE_REG_FE_INT_STATUS2;
+	} else {
+		status_reg = FE_REG_FE_INT_STATUS;
+	}
+
+	if (status & tx_intr)
+		tx_done = fe_poll_tx(priv, budget, tx_intr, &tx_again);
+
+	if (status & rx_intr)
+		rx_done = fe_poll_rx(napi, budget, priv, rx_intr);
+
+	if (unlikely(fe_status & status_intr)) {
+		if (hwstat && spin_trylock(&hwstat->stats_lock)) {
+			fe_stats_update(priv);
+			spin_unlock(&hwstat->stats_lock);
+		}
+		fe_reg_w32(status_intr, status_reg);
+	}
+
+	if (unlikely(netif_msg_intr(priv))) {
+		mask = fe_reg_r32(FE_REG_FE_INT_ENABLE);
+		netdev_info(priv->netdev,
+			    "done tx %d, rx %d, intr 0x%08x/0x%x\n",
+			    tx_done, rx_done, status, mask);
+	}
+
+	if (!tx_again && (rx_done < budget)) {
+		status = fe_reg_r32(FE_REG_FE_INT_STATUS);
+		if (status & (tx_intr | rx_intr)) {
+			/* let napi poll again */
+			rx_done = budget;
+			goto poll_again;
+		}
+
+		napi_complete(napi);
+		fe_int_enable(tx_intr | rx_intr);
+	}
+
+poll_again:
+	return rx_done;
+}
+
+static void fe_tx_timeout(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	struct fe_tx_ring *ring = &priv->tx_ring;
+
+	priv->netdev->stats.tx_errors++;
+	netif_err(priv, tx_err, dev,
+		  "transmit timed out\n");
+	netif_info(priv, drv, dev, "dma_cfg:%08x\n",
+		   fe_reg_r32(FE_REG_PDMA_GLO_CFG));
+	netif_info(priv, drv, dev, "tx_ring=%d, "
+		   "base=%08x, max=%u, ctx=%u, dtx=%u, fdx=%hu, next=%hu\n",
+		   0, fe_reg_r32(FE_REG_TX_BASE_PTR0),
+		   fe_reg_r32(FE_REG_TX_MAX_CNT0),
+		   fe_reg_r32(FE_REG_TX_CTX_IDX0),
+		   fe_reg_r32(FE_REG_TX_DTX_IDX0),
+		   ring->tx_free_idx,
+		   ring->tx_next_idx);
+	netif_info(priv, drv, dev,
+		   "rx_ring=%d, base=%08x, max=%u, calc=%u, drx=%u\n",
+		   0, fe_reg_r32(FE_REG_RX_BASE_PTR0),
+		   fe_reg_r32(FE_REG_RX_MAX_CNT0),
+		   fe_reg_r32(FE_REG_RX_CALC_IDX0),
+		   fe_reg_r32(FE_REG_RX_DRX_IDX0));
+
+	if (!test_and_set_bit(FE_FLAG_RESET_PENDING, priv->pending_flags))
+		schedule_work(&priv->pending_work);
+}
+
+static irqreturn_t fe_handle_irq(int irq, void *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	u32 status, int_mask;
+
+	status = fe_reg_r32(FE_REG_FE_INT_STATUS);
+
+	if (unlikely(!status))
+		return IRQ_NONE;
+
+	int_mask = (priv->soc->rx_int | priv->soc->tx_int);
+	if (likely(status & int_mask)) {
+		if (likely(napi_schedule_prep(&priv->rx_napi))) {
+			fe_int_disable(int_mask);
+			__napi_schedule(&priv->rx_napi);
+		}
+	} else {
+		fe_reg_w32(status, FE_REG_FE_INT_STATUS);
+	}
+
+	return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void fe_poll_controller(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	u32 int_mask = priv->soc->tx_int | priv->soc->rx_int;
+
+	fe_int_disable(int_mask);
+	fe_handle_irq(dev->irq, dev);
+	fe_int_enable(int_mask);
+}
+#endif
+
+int fe_set_clock_cycle(struct fe_priv *priv)
+{
+	unsigned long sysclk = priv->sysclk;
+
+	if (!sysclk)
+		return -EINVAL;
+
+	sysclk /= FE_US_CYC_CNT_DIVISOR;
+	sysclk <<= FE_US_CYC_CNT_SHIFT;
+
+	fe_w32((fe_r32(FE_FE_GLO_CFG) &
+				~(FE_US_CYC_CNT_MASK << FE_US_CYC_CNT_SHIFT)) |
+			sysclk,
+			FE_FE_GLO_CFG);
+	return 0;
+}
+
+void fe_fwd_config(struct fe_priv *priv)
+{
+	u32 fwd_cfg;
+
+	fwd_cfg = fe_r32(FE_GDMA1_FWD_CFG);
+
+	/* disable jumbo frame */
+	if (priv->flags & FE_FLAG_JUMBO_FRAME)
+		fwd_cfg &= ~FE_GDM1_JMB_EN;
+
+	/* set unicast/multicast/broadcast frame to cpu */
+	fwd_cfg &= ~0xffff;
+
+	fe_w32(fwd_cfg, FE_GDMA1_FWD_CFG);
+}
+
+static void fe_rxcsum_config(bool enable)
+{
+	if (enable)
+		fe_w32(fe_r32(FE_GDMA1_FWD_CFG) | (FE_GDM1_ICS_EN |
+					FE_GDM1_TCS_EN | FE_GDM1_UCS_EN),
+				FE_GDMA1_FWD_CFG);
+	else
+		fe_w32(fe_r32(FE_GDMA1_FWD_CFG) & ~(FE_GDM1_ICS_EN |
+					FE_GDM1_TCS_EN | FE_GDM1_UCS_EN),
+				FE_GDMA1_FWD_CFG);
+}
+
+static void fe_txcsum_config(bool enable)
+{
+	if (enable)
+		fe_w32(fe_r32(FE_CDMA_CSG_CFG) | (FE_ICS_GEN_EN |
+					FE_TCS_GEN_EN | FE_UCS_GEN_EN),
+				FE_CDMA_CSG_CFG);
+	else
+		fe_w32(fe_r32(FE_CDMA_CSG_CFG) & ~(FE_ICS_GEN_EN |
+					FE_TCS_GEN_EN | FE_UCS_GEN_EN),
+				FE_CDMA_CSG_CFG);
+}
+
+void fe_csum_config(struct fe_priv *priv)
+{
+	struct net_device *dev = priv_netdev(priv);
+
+	fe_txcsum_config((dev->features & NETIF_F_IP_CSUM));
+	fe_rxcsum_config((dev->features & NETIF_F_RXCSUM));
+}
+
+static int fe_hw_init(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	int i, err;
+
+	err = devm_request_irq(priv->device, dev->irq, fe_handle_irq, 0,
+			       dev_name(priv->device), dev);
+	if (err)
+		return err;
+
+	if (priv->soc->set_mac)
+		priv->soc->set_mac(priv, dev->dev_addr);
+	else
+		fe_hw_set_macaddr(priv, dev->dev_addr);
+
+	/* disable delay interrupt */
+	fe_reg_w32(0, FE_REG_DLY_INT_CFG);
+
+	fe_int_disable(priv->soc->tx_int | priv->soc->rx_int);
+
+	/* frame engine will push VLAN tag regarding to VIDX feild in Tx desc */
+	if (fe_reg_table[FE_REG_FE_DMA_VID_BASE])
+		for (i = 0; i < 16; i += 2)
+			fe_w32(((i + 1) << 16) + i,
+			       fe_reg_table[FE_REG_FE_DMA_VID_BASE] +
+			       (i * 2));
+
+	if (priv->soc->fwd_config(priv))
+		netdev_err(dev, "unable to get clock\n");
+
+	if (fe_reg_table[FE_REG_FE_RST_GL]) {
+		fe_reg_w32(1, FE_REG_FE_RST_GL);
+		fe_reg_w32(0, FE_REG_FE_RST_GL);
+	}
+
+	return 0;
+}
+
+static int fe_open(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	unsigned long flags;
+	u32 val;
+	int err;
+
+	err = fe_init_dma(priv);
+	if (err)
+		goto err_out;
+
+	spin_lock_irqsave(&priv->page_lock, flags);
+
+	val = FE_TX_WB_DDONE | FE_RX_DMA_EN | FE_TX_DMA_EN;
+	if (priv->flags & FE_FLAG_RX_2B_OFFSET)
+		val |= FE_RX_2B_OFFSET;
+	val |= priv->soc->pdma_glo_cfg;
+	fe_reg_w32(val, FE_REG_PDMA_GLO_CFG);
+
+	spin_unlock_irqrestore(&priv->page_lock, flags);
+
+	if (priv->phy)
+		priv->phy->start(priv);
+
+	if (priv->soc->has_carrier && priv->soc->has_carrier(priv))
+		netif_carrier_on(dev);
+
+	napi_enable(&priv->rx_napi);
+	fe_int_enable(priv->soc->tx_int | priv->soc->rx_int);
+	netif_start_queue(dev);
+
+	return 0;
+
+err_out:
+	fe_free_dma(priv);
+	return err;
+}
+
+static int fe_stop(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	unsigned long flags;
+	int i;
+
+	netif_tx_disable(dev);
+	fe_int_disable(priv->soc->tx_int | priv->soc->rx_int);
+	napi_disable(&priv->rx_napi);
+
+	if (priv->phy)
+		priv->phy->stop(priv);
+
+	spin_lock_irqsave(&priv->page_lock, flags);
+
+	fe_reg_w32(fe_reg_r32(FE_REG_PDMA_GLO_CFG) &
+		     ~(FE_TX_WB_DDONE | FE_RX_DMA_EN | FE_TX_DMA_EN),
+		     FE_REG_PDMA_GLO_CFG);
+	spin_unlock_irqrestore(&priv->page_lock, flags);
+
+	/* wait dma stop */
+	for (i = 0; i < 10; i++) {
+		if (fe_reg_r32(FE_REG_PDMA_GLO_CFG) &
+				(FE_TX_DMA_BUSY | FE_RX_DMA_BUSY)) {
+			msleep(20);
+			continue;
+		}
+		break;
+	}
+
+	fe_free_dma(priv);
+
+	return 0;
+}
+
+static int __init fe_init(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	struct device_node *port;
+	const char *mac_addr;
+	int err;
+
+	priv->soc->reset_fe();
+
+	if (priv->soc->switch_init)
+		priv->soc->switch_init(priv);
+
+	mac_addr = of_get_mac_address(priv->device->of_node);
+	if (mac_addr)
+		ether_addr_copy(dev->dev_addr, mac_addr);
+
+	/*If the mac address is invalid, use random mac address  */
+	if (!is_valid_ether_addr(dev->dev_addr)) {
+		random_ether_addr(dev->dev_addr);
+		dev_err(priv->device, "generated random MAC address %pM\n",
+			dev->dev_addr);
+	}
+
+	err = fe_mdio_init(priv);
+	if (err)
+		return err;
+
+	if (priv->soc->port_init)
+		for_each_child_of_node(priv->device->of_node, port)
+			if (of_device_is_compatible(port, "ralink,eth-port") &&
+			    of_device_is_available(port))
+				priv->soc->port_init(priv, port);
+
+	if (priv->phy) {
+		err = priv->phy->connect(priv);
+		if (err)
+			goto err_phy_disconnect;
+	}
+
+	err = fe_hw_init(dev);
+	if (!err)
+		return 0;
+
+err_phy_disconnect:
+	if (priv->phy)
+		priv->phy->disconnect(priv);
+	fe_mdio_cleanup(priv);
+
+	return err;
+}
+
+static void fe_uninit(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+	if (priv->phy)
+		priv->phy->disconnect(priv);
+	fe_mdio_cleanup(priv);
+
+	fe_reg_w32(0, FE_REG_FE_INT_ENABLE);
+	free_irq(dev->irq, dev);
+}
+
+static int fe_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+	if (!priv->phy_dev)
+		return -ENODEV;
+
+	switch (cmd) {
+	case SIOCGMIIPHY:
+	case SIOCGMIIREG:
+	case SIOCSMIIREG:
+		return phy_mii_ioctl(priv->phy_dev, ifr, cmd);
+	default:
+		break;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static int fe_change_mtu(struct net_device *dev, int new_mtu)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	int frag_size, old_mtu;
+	u32 fwd_cfg;
+
+	if (!(priv->flags & FE_FLAG_JUMBO_FRAME))
+		return eth_change_mtu(dev, new_mtu);
+
+	frag_size = fe_max_frag_size(new_mtu);
+	if (new_mtu < 68 || frag_size > PAGE_SIZE)
+		return -EINVAL;
+
+	old_mtu = dev->mtu;
+	dev->mtu = new_mtu;
+
+	/* return early if the buffer sizes will not change */
+	if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN)
+		return 0;
+	if (old_mtu > ETH_DATA_LEN && new_mtu > ETH_DATA_LEN)
+		return 0;
+
+	if (new_mtu <= ETH_DATA_LEN)
+		priv->rx_ring.frag_size = fe_max_frag_size(ETH_DATA_LEN);
+	else
+		priv->rx_ring.frag_size = PAGE_SIZE;
+	priv->rx_ring.rx_buf_size = fe_max_buf_size(priv->rx_ring.frag_size);
+
+	if (!netif_running(dev))
+		return 0;
+
+	fe_stop(dev);
+	fwd_cfg = fe_r32(FE_GDMA1_FWD_CFG);
+	if (new_mtu <= ETH_DATA_LEN) {
+		fwd_cfg &= ~FE_GDM1_JMB_EN;
+	} else {
+		fwd_cfg &= ~(FE_GDM1_JMB_LEN_MASK << FE_GDM1_JMB_LEN_SHIFT);
+		fwd_cfg |= (DIV_ROUND_UP(frag_size, 1024) <<
+				FE_GDM1_JMB_LEN_SHIFT) | FE_GDM1_JMB_EN;
+	}
+	fe_w32(fwd_cfg, FE_GDMA1_FWD_CFG);
+
+	return fe_open(dev);
+}
+
+static const struct net_device_ops fe_netdev_ops = {
+	.ndo_init		= fe_init,
+	.ndo_uninit		= fe_uninit,
+	.ndo_open		= fe_open,
+	.ndo_stop		= fe_stop,
+	.ndo_start_xmit		= fe_start_xmit,
+	.ndo_set_mac_address	= fe_set_mac_address,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_do_ioctl		= fe_do_ioctl,
+	.ndo_change_mtu		= fe_change_mtu,
+	.ndo_tx_timeout		= fe_tx_timeout,
+	.ndo_get_stats64        = fe_get_stats64,
+	.ndo_vlan_rx_add_vid	= fe_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid	= fe_vlan_rx_kill_vid,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= fe_poll_controller,
+#endif
+};
+
+static void fe_reset_pending(struct fe_priv *priv)
+{
+	struct net_device *dev = priv->netdev;
+	int err;
+
+	rtnl_lock();
+	fe_stop(dev);
+
+	err = fe_open(dev);
+	if (err)
+		goto error;
+	rtnl_unlock();
+
+	return;
+error:
+	netif_alert(priv, ifup, dev,
+		    "Driver up/down cycle failed, closing device.\n");
+	dev_close(dev);
+	rtnl_unlock();
+}
+
+static const struct fe_work_t fe_work[] = {
+	{FE_FLAG_RESET_PENDING, fe_reset_pending},
+};
+
+static void fe_pending_work(struct work_struct *work)
+{
+	struct fe_priv *priv = container_of(work, struct fe_priv, pending_work);
+	int i;
+	bool pending;
+
+	for (i = 0; i < ARRAY_SIZE(fe_work); i++) {
+		pending = test_and_clear_bit(fe_work[i].bitnr,
+					     priv->pending_flags);
+		if (pending)
+			fe_work[i].action(priv);
+	}
+}
+
+static int fe_probe(struct platform_device *pdev)
+{
+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	const struct of_device_id *match;
+	struct fe_soc_data *soc;
+	struct net_device *netdev;
+	struct fe_priv *priv;
+	struct clk *sysclk;
+	int err, napi_weight;
+
+	device_reset(&pdev->dev);
+
+	match = of_match_device(of_fe_match, &pdev->dev);
+	soc = (struct fe_soc_data *)match->data;
+
+	if (soc->reg_table)
+		fe_reg_table = soc->reg_table;
+	else
+		soc->reg_table = fe_reg_table;
+
+	fe_base = devm_ioremap_resource(&pdev->dev, res);
+	if (!fe_base) {
+		err = -EADDRNOTAVAIL;
+		goto err_out;
+	}
+
+	netdev = alloc_etherdev(sizeof(*priv));
+	if (!netdev) {
+		dev_err(&pdev->dev, "alloc_etherdev failed\n");
+		err = -ENOMEM;
+		goto err_iounmap;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+	netdev->netdev_ops = &fe_netdev_ops;
+	netdev->base_addr = (unsigned long)fe_base;
+
+	netdev->irq = platform_get_irq(pdev, 0);
+	if (netdev->irq < 0) {
+		dev_err(&pdev->dev, "no IRQ resource found\n");
+		err = -ENXIO;
+		goto err_free_dev;
+	}
+
+	if (soc->init_data)
+		soc->init_data(soc, netdev);
+	/* fake NETIF_F_HW_VLAN_CTAG_RX for good GRO performance */
+	netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
+	netdev->vlan_features = netdev->hw_features &
+		~(NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX);
+	netdev->features |= netdev->hw_features;
+
+	/* fake rx vlan filter func. to support tx vlan offload func */
+	if (fe_reg_table[FE_REG_FE_DMA_VID_BASE])
+		netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+
+	priv = netdev_priv(netdev);
+	spin_lock_init(&priv->page_lock);
+	if (fe_reg_table[FE_REG_FE_COUNTER_BASE]) {
+		priv->hw_stats = kzalloc(sizeof(*priv->hw_stats), GFP_KERNEL);
+		if (!priv->hw_stats) {
+			err = -ENOMEM;
+			goto err_free_dev;
+		}
+		spin_lock_init(&priv->hw_stats->stats_lock);
+	}
+
+	sysclk = devm_clk_get(&pdev->dev, NULL);
+	if (!IS_ERR(sysclk))
+		priv->sysclk = clk_get_rate(sysclk);
+
+	priv->netdev = netdev;
+	priv->device = &pdev->dev;
+	priv->soc = soc;
+	priv->msg_enable = netif_msg_init(fe_msg_level, FE_DEFAULT_MSG_ENABLE);
+	priv->rx_ring.frag_size = fe_max_frag_size(ETH_DATA_LEN);
+	priv->rx_ring.rx_buf_size = fe_max_buf_size(priv->rx_ring.frag_size);
+	priv->tx_ring.tx_ring_size = NUM_DMA_DESC;
+	priv->rx_ring.rx_ring_size = NUM_DMA_DESC;
+	INIT_WORK(&priv->pending_work, fe_pending_work);
+
+	napi_weight = 32;
+	if (priv->flags & FE_FLAG_NAPI_WEIGHT) {
+		napi_weight *= 4;
+		priv->tx_ring.tx_ring_size *= 4;
+		priv->rx_ring.rx_ring_size *= 4;
+	}
+	netif_napi_add(netdev, &priv->rx_napi, fe_poll, napi_weight);
+	fe_set_ethtool_ops(netdev);
+
+	err = register_netdev(netdev);
+	if (err) {
+		dev_err(&pdev->dev, "error bringing up device\n");
+		goto err_free_dev;
+	}
+
+	platform_set_drvdata(pdev, netdev);
+
+	netif_info(priv, probe, netdev, "ralink at 0x%08lx, irq %d\n",
+		   netdev->base_addr, netdev->irq);
+
+	return 0;
+
+err_free_dev:
+	free_netdev(netdev);
+err_iounmap:
+	devm_iounmap(&pdev->dev, fe_base);
+err_out:
+	return err;
+}
+
+static int fe_remove(struct platform_device *pdev)
+{
+	struct net_device *dev = platform_get_drvdata(pdev);
+	struct fe_priv *priv = netdev_priv(dev);
+
+	netif_napi_del(&priv->rx_napi);
+	kfree(priv->hw_stats);
+
+	cancel_work_sync(&priv->pending_work);
+
+	unregister_netdev(dev);
+	free_netdev(dev);
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static struct platform_driver fe_driver = {
+	.probe = fe_probe,
+	.remove = fe_remove,
+	.driver = {
+		.name = "ralink_soc_eth",
+		.owner = THIS_MODULE,
+		.of_match_table = of_fe_match,
+	},
+};
+
+static int __init init_rtfe(void)
+{
+	int ret;
+
+	ret = rtesw_init();
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&fe_driver);
+	if (ret)
+		rtesw_exit();
+
+	return ret;
+}
+
+static void __exit exit_rtfe(void)
+{
+	platform_driver_unregister(&fe_driver);
+	rtesw_exit();
+}
+
+module_init(init_rtfe);
+module_exit(exit_rtfe);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
+MODULE_DESCRIPTION("Ethernet driver for Ralink SoC");
+MODULE_VERSION(FE_DRV_VERSION);
diff --git a/drivers/net/ethernet/ralink/ralink_soc_eth.h b/drivers/net/ethernet/ralink/ralink_soc_eth.h
new file mode 100644
index 0000000..55bd2c9
--- /dev/null
+++ b/drivers/net/ethernet/ralink/ralink_soc_eth.h
@@ -0,0 +1,519 @@
+/*   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; version 2 of the License
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   Copyright (C) 2009-2015 John Crispin <blogic@openwrt.org>
+ *   Copyright (C) 2009-2015 Felix Fietkau <nbd@openwrt.org>
+ *   Copyright (C) 2013-2015 Michael Lee <igvtee@gmail.com>
+ */
+
+#ifndef FE_ETH_H
+#define FE_ETH_H
+
+#include <linux/mii.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/dma-mapping.h>
+#include <linux/phy.h>
+#include <linux/ethtool.h>
+#include <linux/version.h>
+
+enum fe_reg {
+	FE_REG_PDMA_GLO_CFG = 0,
+	FE_REG_PDMA_RST_CFG,
+	FE_REG_DLY_INT_CFG,
+	FE_REG_TX_BASE_PTR0,
+	FE_REG_TX_MAX_CNT0,
+	FE_REG_TX_CTX_IDX0,
+	FE_REG_TX_DTX_IDX0,
+	FE_REG_RX_BASE_PTR0,
+	FE_REG_RX_MAX_CNT0,
+	FE_REG_RX_CALC_IDX0,
+	FE_REG_RX_DRX_IDX0,
+	FE_REG_FE_INT_ENABLE,
+	FE_REG_FE_INT_STATUS,
+	FE_REG_FE_DMA_VID_BASE,
+	FE_REG_FE_COUNTER_BASE,
+	FE_REG_FE_RST_GL,
+	FE_REG_FE_INT_STATUS2,
+	FE_REG_COUNT
+};
+
+enum fe_work_flag {
+	FE_FLAG_RESET_PENDING,
+	FE_FLAG_MAX
+};
+
+#define FE_DRV_VERSION		"0.1.2"
+
+/* power of 2 to let NEXT_TX_DESP_IDX work */
+#define NUM_DMA_DESC		BIT(7)
+#define MAX_DMA_DESC		0xfff
+
+#define FE_DELAY_EN_INT		0x80
+#define FE_DELAY_MAX_INT	0x04
+#define FE_DELAY_MAX_TOUT	0x04
+#define FE_DELAY_TIME		20
+#define FE_DELAY_CHAN		(((FE_DELAY_EN_INT | FE_DELAY_MAX_INT) << 8) | \
+				 FE_DELAY_MAX_TOUT)
+#define FE_DELAY_INIT		((FE_DELAY_CHAN << 16) | FE_DELAY_CHAN)
+#define FE_PSE_FQFC_CFG_INIT	0x80504000
+#define FE_PSE_FQFC_CFG_256Q	0xff908000
+
+/* interrupt bits */
+#define FE_CNT_PPE_AF		BIT(31)
+#define FE_CNT_GDM_AF		BIT(29)
+#define FE_PSE_P2_FC		BIT(26)
+#define FE_PSE_BUF_DROP		BIT(24)
+#define FE_GDM_OTHER_DROP	BIT(23)
+#define FE_PSE_P1_FC		BIT(22)
+#define FE_PSE_P0_FC		BIT(21)
+#define FE_PSE_FQ_EMPTY		BIT(20)
+#define FE_GE1_STA_CHG		BIT(18)
+#define FE_TX_COHERENT		BIT(17)
+#define FE_RX_COHERENT		BIT(16)
+#define FE_TX_DONE_INT3		BIT(11)
+#define FE_TX_DONE_INT2		BIT(10)
+#define FE_TX_DONE_INT1		BIT(9)
+#define FE_TX_DONE_INT0		BIT(8)
+#define FE_RX_DONE_INT0		BIT(2)
+#define FE_TX_DLY_INT		BIT(1)
+#define FE_RX_DLY_INT		BIT(0)
+
+#define FE_RX_DONE_INT		FE_RX_DONE_INT0
+#define FE_TX_DONE_INT		(FE_TX_DONE_INT0 | FE_TX_DONE_INT1 | \
+				 FE_TX_DONE_INT2 | FE_TX_DONE_INT3)
+
+#define RT5350_RX_DLY_INT	BIT(30)
+#define RT5350_TX_DLY_INT	BIT(28)
+#define RT5350_RX_DONE_INT1	BIT(17)
+#define RT5350_RX_DONE_INT0	BIT(16)
+#define RT5350_TX_DONE_INT3	BIT(3)
+#define RT5350_TX_DONE_INT2	BIT(2)
+#define RT5350_TX_DONE_INT1	BIT(1)
+#define RT5350_TX_DONE_INT0	BIT(0)
+
+#define RT5350_RX_DONE_INT	(RT5350_RX_DONE_INT0 | RT5350_RX_DONE_INT1)
+#define RT5350_TX_DONE_INT	(RT5350_TX_DONE_INT0 | RT5350_TX_DONE_INT1 | \
+				 RT5350_TX_DONE_INT2 | RT5350_TX_DONE_INT3)
+
+/* registers */
+#define FE_FE_OFFSET		0x0000
+#define FE_GDMA_OFFSET		0x0020
+#define FE_PSE_OFFSET		0x0040
+#define FE_GDMA2_OFFSET		0x0060
+#define FE_CDMA_OFFSET		0x0080
+#define FE_DMA_VID0		0x00a8
+#define FE_PDMA_OFFSET		0x0100
+#define FE_PPE_OFFSET		0x0200
+#define FE_CMTABLE_OFFSET	0x0400
+#define FE_POLICYTABLE_OFFSET	0x1000
+
+#define RT5350_PDMA_OFFSET	0x0800
+#define RT5350_SDM_OFFSET	0x0c00
+
+#define FE_MDIO_ACCESS		(FE_FE_OFFSET + 0x00)
+#define FE_MDIO_CFG		(FE_FE_OFFSET + 0x04)
+#define FE_FE_GLO_CFG		(FE_FE_OFFSET + 0x08)
+#define FE_FE_RST_GL		(FE_FE_OFFSET + 0x0C)
+#define FE_FE_INT_STATUS	(FE_FE_OFFSET + 0x10)
+#define FE_FE_INT_ENABLE	(FE_FE_OFFSET + 0x14)
+#define FE_MDIO_CFG2		(FE_FE_OFFSET + 0x18)
+#define FE_FOC_TS_T		(FE_FE_OFFSET + 0x1C)
+
+#define	FE_GDMA1_FWD_CFG	(FE_GDMA_OFFSET + 0x00)
+#define FE_GDMA1_SCH_CFG	(FE_GDMA_OFFSET + 0x04)
+#define FE_GDMA1_SHPR_CFG	(FE_GDMA_OFFSET + 0x08)
+#define FE_GDMA1_MAC_ADRL	(FE_GDMA_OFFSET + 0x0C)
+#define FE_GDMA1_MAC_ADRH	(FE_GDMA_OFFSET + 0x10)
+
+#define	FE_GDMA2_FWD_CFG	(FE_GDMA2_OFFSET + 0x00)
+#define FE_GDMA2_SCH_CFG	(FE_GDMA2_OFFSET + 0x04)
+#define FE_GDMA2_SHPR_CFG	(FE_GDMA2_OFFSET + 0x08)
+#define FE_GDMA2_MAC_ADRL	(FE_GDMA2_OFFSET + 0x0C)
+#define FE_GDMA2_MAC_ADRH	(FE_GDMA2_OFFSET + 0x10)
+
+#define FE_PSE_FQ_CFG		(FE_PSE_OFFSET + 0x00)
+#define FE_CDMA_FC_CFG		(FE_PSE_OFFSET + 0x04)
+#define FE_GDMA1_FC_CFG		(FE_PSE_OFFSET + 0x08)
+#define FE_GDMA2_FC_CFG		(FE_PSE_OFFSET + 0x0C)
+
+#define FE_CDMA_CSG_CFG		(FE_CDMA_OFFSET + 0x00)
+#define FE_CDMA_SCH_CFG		(FE_CDMA_OFFSET + 0x04)
+
+#ifdef CONFIG_SOC_MT7621
+#define MT7620A_GDMA_OFFSET		0x0500
+#else
+#define MT7620A_GDMA_OFFSET		0x0600
+#endif
+#define	MT7620A_GDMA1_FWD_CFG		(MT7620A_GDMA_OFFSET + 0x00)
+#define MT7620A_FE_GDMA1_SCH_CFG	(MT7620A_GDMA_OFFSET + 0x04)
+#define MT7620A_FE_GDMA1_SHPR_CFG	(MT7620A_GDMA_OFFSET + 0x08)
+#define MT7620A_FE_GDMA1_MAC_ADRL	(MT7620A_GDMA_OFFSET + 0x0C)
+#define MT7620A_FE_GDMA1_MAC_ADRH	(MT7620A_GDMA_OFFSET + 0x10)
+
+#define RT5350_TX_BASE_PTR0	(RT5350_PDMA_OFFSET + 0x00)
+#define RT5350_TX_MAX_CNT0	(RT5350_PDMA_OFFSET + 0x04)
+#define RT5350_TX_CTX_IDX0	(RT5350_PDMA_OFFSET + 0x08)
+#define RT5350_TX_DTX_IDX0	(RT5350_PDMA_OFFSET + 0x0C)
+#define RT5350_TX_BASE_PTR1	(RT5350_PDMA_OFFSET + 0x10)
+#define RT5350_TX_MAX_CNT1	(RT5350_PDMA_OFFSET + 0x14)
+#define RT5350_TX_CTX_IDX1	(RT5350_PDMA_OFFSET + 0x18)
+#define RT5350_TX_DTX_IDX1	(RT5350_PDMA_OFFSET + 0x1C)
+#define RT5350_TX_BASE_PTR2	(RT5350_PDMA_OFFSET + 0x20)
+#define RT5350_TX_MAX_CNT2	(RT5350_PDMA_OFFSET + 0x24)
+#define RT5350_TX_CTX_IDX2	(RT5350_PDMA_OFFSET + 0x28)
+#define RT5350_TX_DTX_IDX2	(RT5350_PDMA_OFFSET + 0x2C)
+#define RT5350_TX_BASE_PTR3	(RT5350_PDMA_OFFSET + 0x30)
+#define RT5350_TX_MAX_CNT3	(RT5350_PDMA_OFFSET + 0x34)
+#define RT5350_TX_CTX_IDX3	(RT5350_PDMA_OFFSET + 0x38)
+#define RT5350_TX_DTX_IDX3	(RT5350_PDMA_OFFSET + 0x3C)
+#define RT5350_RX_BASE_PTR0	(RT5350_PDMA_OFFSET + 0x100)
+#define RT5350_RX_MAX_CNT0	(RT5350_PDMA_OFFSET + 0x104)
+#define RT5350_RX_CALC_IDX0	(RT5350_PDMA_OFFSET + 0x108)
+#define RT5350_RX_DRX_IDX0	(RT5350_PDMA_OFFSET + 0x10C)
+#define RT5350_RX_BASE_PTR1	(RT5350_PDMA_OFFSET + 0x110)
+#define RT5350_RX_MAX_CNT1	(RT5350_PDMA_OFFSET + 0x114)
+#define RT5350_RX_CALC_IDX1	(RT5350_PDMA_OFFSET + 0x118)
+#define RT5350_RX_DRX_IDX1	(RT5350_PDMA_OFFSET + 0x11C)
+#define RT5350_PDMA_GLO_CFG	(RT5350_PDMA_OFFSET + 0x204)
+#define RT5350_PDMA_RST_CFG	(RT5350_PDMA_OFFSET + 0x208)
+#define RT5350_DLY_INT_CFG	(RT5350_PDMA_OFFSET + 0x20c)
+#define RT5350_FE_INT_STATUS	(RT5350_PDMA_OFFSET + 0x220)
+#define RT5350_FE_INT_ENABLE	(RT5350_PDMA_OFFSET + 0x228)
+#define RT5350_PDMA_SCH_CFG	(RT5350_PDMA_OFFSET + 0x280)
+
+#define FE_PDMA_GLO_CFG		(FE_PDMA_OFFSET + 0x00)
+#define FE_PDMA_RST_CFG		(FE_PDMA_OFFSET + 0x04)
+#define FE_PDMA_SCH_CFG		(FE_PDMA_OFFSET + 0x08)
+#define FE_DLY_INT_CFG		(FE_PDMA_OFFSET + 0x0C)
+#define FE_TX_BASE_PTR0		(FE_PDMA_OFFSET + 0x10)
+#define FE_TX_MAX_CNT0		(FE_PDMA_OFFSET + 0x14)
+#define FE_TX_CTX_IDX0		(FE_PDMA_OFFSET + 0x18)
+#define FE_TX_DTX_IDX0		(FE_PDMA_OFFSET + 0x1C)
+#define FE_TX_BASE_PTR1		(FE_PDMA_OFFSET + 0x20)
+#define FE_TX_MAX_CNT1		(FE_PDMA_OFFSET + 0x24)
+#define FE_TX_CTX_IDX1		(FE_PDMA_OFFSET + 0x28)
+#define FE_TX_DTX_IDX1		(FE_PDMA_OFFSET + 0x2C)
+#define FE_RX_BASE_PTR0		(FE_PDMA_OFFSET + 0x30)
+#define FE_RX_MAX_CNT0		(FE_PDMA_OFFSET + 0x34)
+#define FE_RX_CALC_IDX0		(FE_PDMA_OFFSET + 0x38)
+#define FE_RX_DRX_IDX0		(FE_PDMA_OFFSET + 0x3C)
+#define FE_TX_BASE_PTR2		(FE_PDMA_OFFSET + 0x40)
+#define FE_TX_MAX_CNT2		(FE_PDMA_OFFSET + 0x44)
+#define FE_TX_CTX_IDX2		(FE_PDMA_OFFSET + 0x48)
+#define FE_TX_DTX_IDX2		(FE_PDMA_OFFSET + 0x4C)
+#define FE_TX_BASE_PTR3		(FE_PDMA_OFFSET + 0x50)
+#define FE_TX_MAX_CNT3		(FE_PDMA_OFFSET + 0x54)
+#define FE_TX_CTX_IDX3		(FE_PDMA_OFFSET + 0x58)
+#define FE_TX_DTX_IDX3		(FE_PDMA_OFFSET + 0x5C)
+#define FE_RX_BASE_PTR1		(FE_PDMA_OFFSET + 0x60)
+#define FE_RX_MAX_CNT1		(FE_PDMA_OFFSET + 0x64)
+#define FE_RX_CALC_IDX1		(FE_PDMA_OFFSET + 0x68)
+#define FE_RX_DRX_IDX1		(FE_PDMA_OFFSET + 0x6C)
+
+/* Switch DMA configuration */
+#define RT5350_SDM_CFG		(RT5350_SDM_OFFSET + 0x00)
+#define RT5350_SDM_RRING	(RT5350_SDM_OFFSET + 0x04)
+#define RT5350_SDM_TRING	(RT5350_SDM_OFFSET + 0x08)
+#define RT5350_SDM_MAC_ADRL	(RT5350_SDM_OFFSET + 0x0C)
+#define RT5350_SDM_MAC_ADRH	(RT5350_SDM_OFFSET + 0x10)
+#define RT5350_SDM_TPCNT	(RT5350_SDM_OFFSET + 0x100)
+#define RT5350_SDM_TBCNT	(RT5350_SDM_OFFSET + 0x104)
+#define RT5350_SDM_RPCNT	(RT5350_SDM_OFFSET + 0x108)
+#define RT5350_SDM_RBCNT	(RT5350_SDM_OFFSET + 0x10C)
+#define RT5350_SDM_CS_ERR	(RT5350_SDM_OFFSET + 0x110)
+
+#define RT5350_SDM_ICS_EN	BIT(16)
+#define RT5350_SDM_TCS_EN	BIT(17)
+#define RT5350_SDM_UCS_EN	BIT(18)
+
+/* MDIO_CFG register bits */
+#define FE_MDIO_CFG_AUTO_POLL_EN	BIT(29)
+#define FE_MDIO_CFG_GP1_BP_EN		BIT(16)
+#define FE_MDIO_CFG_GP1_FRC_EN		BIT(15)
+#define FE_MDIO_CFG_GP1_SPEED_10	(0 << 13)
+#define FE_MDIO_CFG_GP1_SPEED_100	(1 << 13)
+#define FE_MDIO_CFG_GP1_SPEED_1000	(2 << 13)
+#define FE_MDIO_CFG_GP1_DUPLEX		BIT(12)
+#define FE_MDIO_CFG_GP1_FC_TX		BIT(11)
+#define FE_MDIO_CFG_GP1_FC_RX		BIT(10)
+#define FE_MDIO_CFG_GP1_LNK_DWN		BIT(9)
+#define FE_MDIO_CFG_GP1_AN_FAIL		BIT(8)
+#define FE_MDIO_CFG_MDC_CLK_DIV_1	(0 << 6)
+#define FE_MDIO_CFG_MDC_CLK_DIV_2	(1 << 6)
+#define FE_MDIO_CFG_MDC_CLK_DIV_4	(2 << 6)
+#define FE_MDIO_CFG_MDC_CLK_DIV_8	(3 << 6)
+#define FE_MDIO_CFG_TURBO_MII_FREQ	BIT(5)
+#define FE_MDIO_CFG_TURBO_MII_MODE	BIT(4)
+#define FE_MDIO_CFG_RX_CLK_SKEW_0	(0 << 2)
+#define FE_MDIO_CFG_RX_CLK_SKEW_200	(1 << 2)
+#define FE_MDIO_CFG_RX_CLK_SKEW_400	(2 << 2)
+#define FE_MDIO_CFG_RX_CLK_SKEW_INV	(3 << 2)
+#define FE_MDIO_CFG_TX_CLK_SKEW_0	0
+#define FE_MDIO_CFG_TX_CLK_SKEW_200	1
+#define FE_MDIO_CFG_TX_CLK_SKEW_400	2
+#define FE_MDIO_CFG_TX_CLK_SKEW_INV	3
+
+/* uni-cast port */
+#define FE_GDM1_JMB_LEN_MASK	0xf
+#define FE_GDM1_JMB_LEN_SHIFT	28
+#define FE_GDM1_ICS_EN		BIT(22)
+#define FE_GDM1_TCS_EN		BIT(21)
+#define FE_GDM1_UCS_EN		BIT(20)
+#define FE_GDM1_JMB_EN		BIT(19)
+#define FE_GDM1_STRPCRC		BIT(16)
+#define FE_GDM1_UFRC_P_CPU	(0 << 12)
+#define FE_GDM1_UFRC_P_GDMA1	(1 << 12)
+#define FE_GDM1_UFRC_P_PPE	(6 << 12)
+
+/* checksums */
+#define FE_ICS_GEN_EN		BIT(2)
+#define FE_UCS_GEN_EN		BIT(1)
+#define FE_TCS_GEN_EN		BIT(0)
+
+/* dma ring */
+#define FE_PST_DRX_IDX0		BIT(16)
+#define FE_PST_DTX_IDX3		BIT(3)
+#define FE_PST_DTX_IDX2		BIT(2)
+#define FE_PST_DTX_IDX1		BIT(1)
+#define FE_PST_DTX_IDX0		BIT(0)
+
+#define FE_RX_2B_OFFSET		BIT(31)
+#define FE_TX_WB_DDONE		BIT(6)
+#define FE_RX_DMA_BUSY		BIT(3)
+#define FE_TX_DMA_BUSY		BIT(1)
+#define FE_RX_DMA_EN		BIT(2)
+#define FE_TX_DMA_EN		BIT(0)
+
+#define FE_PDMA_SIZE_4DWORDS	(0 << 4)
+#define FE_PDMA_SIZE_8DWORDS	(1 << 4)
+#define FE_PDMA_SIZE_16DWORDS	(2 << 4)
+
+#define FE_US_CYC_CNT_MASK	0xff
+#define FE_US_CYC_CNT_SHIFT	0x8
+#define FE_US_CYC_CNT_DIVISOR	1000000
+
+/* rxd2 */
+#define RX_DMA_DONE		BIT(31)
+#define RX_DMA_LSO		BIT(30)
+#define RX_DMA_PLEN0(_x)	(((_x) & 0x3fff) << 16)
+#define RX_DMA_GET_PLEN0(_x)	(((_x) >> 16) & 0x3fff)
+#define RX_DMA_TAG		BIT(15)
+/* rxd3 */
+#define RX_DMA_TPID(_x)		(((_x) >> 16) & 0xffff)
+#define RX_DMA_VID(_x)		((_x) & 0xffff)
+/* rxd4 */
+#define RX_DMA_L4VALID		BIT(30)
+
+struct fe_rx_dma {
+	unsigned int rxd1;
+	unsigned int rxd2;
+	unsigned int rxd3;
+	unsigned int rxd4;
+} __packed __aligned(4);
+
+#define TX_DMA_BUF_LEN		0x3fff
+#define TX_DMA_PLEN0_MASK	(TX_DMA_BUF_LEN << 16)
+#define TX_DMA_PLEN0(_x)	(((_x) & TX_DMA_BUF_LEN) << 16)
+#define TX_DMA_PLEN1(_x)	((_x) & TX_DMA_BUF_LEN)
+#define TX_DMA_GET_PLEN0(_x)    (((_x) >> 16) & TX_DMA_BUF_LEN)
+#define TX_DMA_GET_PLEN1(_x)    ((_x) & TX_DMA_BUF_LEN)
+#define TX_DMA_LS1		BIT(14)
+#define TX_DMA_LS0		BIT(30)
+#define TX_DMA_DONE		BIT(31)
+
+#define TX_DMA_INS_VLAN_MT7621	BIT(16)
+#define TX_DMA_INS_VLAN		BIT(7)
+#define TX_DMA_INS_PPPOE	BIT(12)
+#define TX_DMA_QN(_x)		((_x) << 16)
+#define TX_DMA_PN(_x)		((_x) << 24)
+#define TX_DMA_QN_MASK		TX_DMA_QN(0x7)
+#define TX_DMA_PN_MASK		TX_DMA_PN(0x7)
+#define TX_DMA_UDF		BIT(20)
+#define TX_DMA_CHKSUM		(0x7 << 29)
+#define TX_DMA_TSO		BIT(28)
+
+/* frame engine counters */
+#define FE_PPE_AC_BCNT0		(FE_CMTABLE_OFFSET + 0x00)
+#define FE_GDMA1_TX_GBCNT	(FE_CMTABLE_OFFSET + 0x300)
+#define FE_GDMA2_TX_GBCNT	(FE_GDMA1_TX_GBCNT + 0x40)
+
+/* phy device flags */
+#define FE_PHY_FLAG_PORT	BIT(0)
+#define FE_PHY_FLAG_ATTACH	BIT(1)
+
+struct fe_tx_dma {
+	unsigned int txd1;
+	unsigned int txd2;
+	unsigned int txd3;
+	unsigned int txd4;
+} __packed __aligned(4);
+
+struct fe_priv;
+
+struct fe_phy {
+	/* make sure that phy operations are atomic */
+	spinlock_t		lock;
+
+	struct phy_device	*phy[8];
+	struct device_node	*phy_node[8];
+	const __be32		*phy_fixed[8];
+	int			duplex[8];
+	int			speed[8];
+	int			tx_fc[8];
+	int			rx_fc[8];
+	int (*connect)(struct fe_priv *priv);
+	void (*disconnect)(struct fe_priv *priv);
+	void (*start)(struct fe_priv *priv);
+	void (*stop)(struct fe_priv *priv);
+};
+
+struct fe_soc_data {
+	const u16 *reg_table;
+
+	void (*init_data)(struct fe_soc_data *data, struct net_device *netdev);
+	void (*reset_fe)(void);
+	void (*set_mac)(struct fe_priv *priv, unsigned char *mac);
+	int (*fwd_config)(struct fe_priv *priv);
+	void (*tx_dma)(struct fe_tx_dma *txd);
+	int (*switch_init)(struct fe_priv *priv);
+	void (*port_init)(struct fe_priv *priv, struct device_node *port);
+	int (*has_carrier)(struct fe_priv *priv);
+	int (*mdio_init)(struct fe_priv *priv);
+	void (*mdio_cleanup)(struct fe_priv *priv);
+	int (*mdio_write)(struct mii_bus *bus, int phy_addr, int phy_reg,
+			  u16 val);
+	int (*mdio_read)(struct mii_bus *bus, int phy_addr, int phy_reg);
+	void (*mdio_adjust_link)(struct fe_priv *priv, int port);
+
+	void *swpriv;
+	u32 pdma_glo_cfg;
+	u32 rx_int;
+	u32 tx_int;
+	u32 status_int;
+	u32 checksum_bit;
+};
+
+#define FE_FLAG_PADDING_64B		BIT(0)
+#define FE_FLAG_PADDING_BUG		BIT(1)
+#define FE_FLAG_JUMBO_FRAME		BIT(2)
+#define FE_FLAG_RX_2B_OFFSET		BIT(3)
+#define FE_FLAG_RX_SG_DMA		BIT(4)
+#define FE_FLAG_RX_VLAN_CTAG		BIT(5)
+#define FE_FLAG_NAPI_WEIGHT		BIT(6)
+
+#define FE_STAT_REG_DECLARE		\
+	_FE(tx_bytes)			\
+	_FE(tx_packets)			\
+	_FE(tx_skip)			\
+	_FE(tx_collisions)		\
+	_FE(rx_bytes)			\
+	_FE(rx_packets)			\
+	_FE(rx_overflow)		\
+	_FE(rx_fcs_errors)		\
+	_FE(rx_short_errors)		\
+	_FE(rx_long_errors)		\
+	_FE(rx_checksum_errors)		\
+	_FE(rx_flow_control_packets)
+
+struct fe_hw_stats {
+	/* make sure that stats operations are atomic */
+	spinlock_t stats_lock;
+
+	struct u64_stats_sync syncp;
+#define _FE(x) u64 x;
+	FE_STAT_REG_DECLARE
+#undef _FE
+};
+
+enum fe_tx_flags {
+	FE_TX_FLAGS_SINGLE0	= 0x01,
+	FE_TX_FLAGS_PAGE0	= 0x02,
+	FE_TX_FLAGS_PAGE1	= 0x04,
+};
+
+struct fe_tx_buf {
+	struct sk_buff *skb;
+	u32 flags;
+	DEFINE_DMA_UNMAP_ADDR(dma_addr0);
+	DEFINE_DMA_UNMAP_LEN(dma_len0);
+	DEFINE_DMA_UNMAP_ADDR(dma_addr1);
+	DEFINE_DMA_UNMAP_LEN(dma_len1);
+};
+
+struct fe_tx_ring {
+	struct fe_tx_dma *tx_dma;
+	struct fe_tx_buf *tx_buf;
+	dma_addr_t tx_phys;
+	u16 tx_ring_size;
+	u16 tx_free_idx;
+	u16 tx_next_idx;
+	u16 tx_thresh;
+};
+
+struct fe_rx_ring {
+	struct fe_rx_dma *rx_dma;
+	u8 **rx_data;
+	dma_addr_t rx_phys;
+	u16 rx_ring_size;
+	u16 frag_size;
+	u16 rx_buf_size;
+	u16 rx_calc_idx;
+};
+
+struct fe_priv {
+	/* make sure that register operations are atomic */
+	spinlock_t			page_lock;
+
+	struct fe_soc_data		*soc;
+	struct net_device		*netdev;
+	u32				msg_enable;
+	u32				flags;
+
+	struct device			*device;
+	unsigned long			sysclk;
+
+	struct fe_rx_ring		rx_ring;
+	struct napi_struct		rx_napi;
+
+	struct fe_tx_ring               tx_ring;
+
+	struct fe_phy			*phy;
+	struct mii_bus			*mii_bus;
+	struct phy_device		*phy_dev;
+	u32				phy_flags;
+
+	int				link[8];
+
+	struct fe_hw_stats		*hw_stats;
+	unsigned long			vlan_map;
+	struct work_struct		pending_work;
+	DECLARE_BITMAP(pending_flags, FE_FLAG_MAX);
+};
+
+extern const struct of_device_id of_fe_match[];
+
+void fe_w32(u32 val, unsigned reg);
+u32 fe_r32(unsigned reg);
+
+int fe_set_clock_cycle(struct fe_priv *priv);
+void fe_csum_config(struct fe_priv *priv);
+void fe_stats_update(struct fe_priv *priv);
+void fe_fwd_config(struct fe_priv *priv);
+void fe_reg_w32(u32 val, enum fe_reg reg);
+u32 fe_reg_r32(enum fe_reg reg);
+
+void fe_reset(u32 reset_bits);
+
+static inline void *priv_netdev(struct fe_priv *priv)
+{
+	return (char *)priv - ALIGN(sizeof(struct net_device), NETDEV_ALIGN);
+}
+
+#endif /* FE_ETH_H */
