path: root/target/linux/ramips/patches-3.10/0111-NET-MIPS-add-ralink-SoC-ethernet-driver.patch

From ad11aedcc16574c0b3d3f5e40c67227d1846b94e Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 22 Apr 2013 23:20:03 +0200
Subject: [PATCH 16/33] NET: MIPS: add ralink SoC ethernet driver

Add support for Ralink FE and ESW.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 .../include/asm/mach-ralink/rt305x_esw_platform.h  |   27 +
 arch/mips/ralink/rt305x.c                          |    1 +
 drivers/net/ethernet/Kconfig                       |    1 +
 drivers/net/ethernet/Makefile                      |    1 +
 drivers/net/ethernet/ralink/Kconfig                |   31 +
 drivers/net/ethernet/ralink/Makefile               |   18 +
 drivers/net/ethernet/ralink/esw_rt3052.c           | 1463 ++++++++++++++++++++
 drivers/net/ethernet/ralink/esw_rt3052.h           |   32 +
 drivers/net/ethernet/ralink/gsw_mt7620a.c          | 1027 ++++++++++++++
 drivers/net/ethernet/ralink/gsw_mt7620a.h          |   29 +
 drivers/net/ethernet/ralink/mdio.c                 |  245 ++++
 drivers/net/ethernet/ralink/mdio.h                 |   29 +
 drivers/net/ethernet/ralink/mdio_rt2880.c          |  232 ++++
 drivers/net/ethernet/ralink/mdio_rt2880.h          |   26 +
 drivers/net/ethernet/ralink/ralink_soc_eth.c       |  735 ++++++++++
 drivers/net/ethernet/ralink/ralink_soc_eth.h       |  374 +++++
 drivers/net/ethernet/ralink/soc_mt7620.c           |  111 ++
 drivers/net/ethernet/ralink/soc_rt2880.c           |   51 +
 drivers/net/ethernet/ralink/soc_rt305x.c           |  113 ++
 drivers/net/ethernet/ralink/soc_rt3883.c           |   60 +
 20 files changed, 4606 insertions(+)
 create mode 100644 arch/mips/include/asm/mach-ralink/rt305x_esw_platform.h
 create mode 100644 drivers/net/ethernet/ralink/Kconfig
 create mode 100644 drivers/net/ethernet/ralink/Makefile
 create mode 100644 drivers/net/ethernet/ralink/esw_rt3052.c
 create mode 100644 drivers/net/ethernet/ralink/esw_rt3052.h
 create mode 100644 drivers/net/ethernet/ralink/gsw_mt7620a.c
 create mode 100644 drivers/net/ethernet/ralink/gsw_mt7620a.h
 create mode 100644 drivers/net/ethernet/ralink/mdio.c
 create mode 100644 drivers/net/ethernet/ralink/mdio.h
 create mode 100644 drivers/net/ethernet/ralink/mdio_rt2880.c
 create mode 100644 drivers/net/ethernet/ralink/mdio_rt2880.h
 create mode 100644 drivers/net/ethernet/ralink/ralink_soc_eth.c
 create mode 100644 drivers/net/ethernet/ralink/ralink_soc_eth.h
 create mode 100644 drivers/net/ethernet/ralink/soc_mt7620.c
 create mode 100644 drivers/net/ethernet/ralink/soc_rt2880.c
 create mode 100644 drivers/net/ethernet/ralink/soc_rt305x.c
 create mode 100644 drivers/net/ethernet/ralink/soc_rt3883.c

--- /dev/null
+++ b/arch/mips/include/asm/mach-ralink/rt305x_esw_platform.h
@@ -0,0 +1,27 @@
+/*
+ *  Ralink RT305x SoC platform device registration
+ *
+ *  Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#ifndef _RT305X_ESW_PLATFORM_H
+#define _RT305X_ESW_PLATFORM_H
+
+enum {
+	RT305X_ESW_VLAN_CONFIG_NONE = 0,
+	RT305X_ESW_VLAN_CONFIG_LLLLW,
+	RT305X_ESW_VLAN_CONFIG_WLLLL,
+};
+
+struct rt305x_esw_platform_data
+{
+	u8 vlan_config;
+	u32 reg_initval_fct2;
+	u32 reg_initval_fpa2;
+};
+
+#endif /* _RT305X_ESW_PLATFORM_H */
--- a/arch/mips/ralink/rt305x.c
+++ b/arch/mips/ralink/rt305x.c
@@ -221,6 +221,7 @@ void __init ralink_clk_init(void)
 	}
 
 	ralink_clk_add("cpu", cpu_rate);
+	ralink_clk_add("sys", sys_rate);
 	ralink_clk_add("10000b00.spi", sys_rate);
 	ralink_clk_add("10000100.timer", wdt_rate);
 	ralink_clk_add("10000120.watchdog", wdt_rate);
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -135,6 +135,7 @@ config ETHOC
 source "drivers/net/ethernet/packetengines/Kconfig"
 source "drivers/net/ethernet/pasemi/Kconfig"
 source "drivers/net/ethernet/qlogic/Kconfig"
+source "drivers/net/ethernet/ralink/Kconfig"
 source "drivers/net/ethernet/realtek/Kconfig"
 source "drivers/net/ethernet/renesas/Kconfig"
 source "drivers/net/ethernet/rdc/Kconfig"
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -53,6 +53,7 @@ obj-$(CONFIG_ETHOC) += ethoc.o
 obj-$(CONFIG_NET_PACKET_ENGINE) += packetengines/
 obj-$(CONFIG_NET_VENDOR_PASEMI) += pasemi/
 obj-$(CONFIG_NET_VENDOR_QLOGIC) += qlogic/
+obj-$(CONFIG_NET_RALINK) += ralink/
 obj-$(CONFIG_NET_VENDOR_REALTEK) += realtek/
 obj-$(CONFIG_SH_ETH) += renesas/
 obj-$(CONFIG_NET_VENDOR_RDC) += rdc/
--- /dev/null
+++ b/drivers/net/ethernet/ralink/Kconfig
@@ -0,0 +1,31 @@
+config NET_RALINK
+	tristate "Ralink RT288X/RT3X5X/RT3662/RT3883/MT7620 ethernet driver"
+	depends on RALINK
+	help
+	  This driver supports the ethernet mac inside the ralink wisocs
+
+if NET_RALINK
+
+config NET_RALINK_MDIO
+	def_bool NET_RALINK
+	depends on (SOC_RT288X || SOC_RT3883 || SOC_MT7620)
+	select PHYLIB
+
+config NET_RALINK_MDIO_RT2880
+	def_bool NET_RALINK
+	depends on (SOC_RT288X || SOC_RT3883)
+	select NET_RALINK_MDIO
+
+config NET_RALINK_ESW_RT3052
+	def_bool NET_RALINK
+	depends on SOC_RT305X
+	select PHYLIB
+	select SWCONFIG
+
+config NET_RALINK_GSW_MT7620
+	def_bool NET_RALINK
+	depends on SOC_MT7620
+	select NET_RALINK_MDIO
+	select PHYLIB
+	select SWCONFIG
+endif
--- /dev/null
+++ b/drivers/net/ethernet/ralink/Makefile
@@ -0,0 +1,18 @@
+#
+# Makefile for the Ralink SoCs built-in ethernet macs
+#
+
+ralink-eth-y					+= ralink_soc_eth.o
+
+ralink-eth-$(CONFIG_NET_RALINK_MDIO)		+= mdio.o
+ralink-eth-$(CONFIG_NET_RALINK_MDIO_RT2880)	+= mdio_rt2880.o
+
+ralink-eth-$(CONFIG_NET_RALINK_ESW_RT3052)	+= esw_rt3052.o
+ralink-eth-$(CONFIG_NET_RALINK_GSW_MT7620)	+= gsw_mt7620a.o
+
+ralink-eth-$(CONFIG_SOC_RT288X)			+= soc_rt2880.o
+ralink-eth-$(CONFIG_SOC_RT305X)			+= soc_rt305x.o
+ralink-eth-$(CONFIG_SOC_RT3883)			+= soc_rt3883.o
+ralink-eth-$(CONFIG_SOC_MT7620)			+= soc_mt7620.o
+
+obj-$(CONFIG_NET_RALINK)			+= ralink-eth.o
--- /dev/null
+++ b/drivers/net/ethernet/ralink/esw_rt3052.c
@@ -0,0 +1,1463 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#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 <asm/mach-ralink/ralink_regs.h>
+
+#include "ralink_soc_eth.h"
+
+#include <linux/ioport.h>
+#include <linux/switch.h>
+#include <linux/mii.h>
+
+#include <ralink_regs.h>
+#include <asm/mach-ralink/rt305x.h>
+#include <asm/mach-ralink/rt305x_esw_platform.h>
+
+/*
+ * HW limitations for this switch:
+ * - No large frame support (PKT_MAX_LEN at most 1536)
+ * - Can't have untagged vlan and tagged vlan on one port at the same time,
+ *   though this might be possible using the undocumented PPE.
+ */
+
+#define RT305X_ESW_REG_ISR		0x00
+#define RT305X_ESW_REG_IMR		0x04
+#define RT305X_ESW_REG_FCT0		0x08
+#define RT305X_ESW_REG_PFC1		0x14
+#define RT305X_ESW_REG_ATS		0x24
+#define RT305X_ESW_REG_ATS0		0x28
+#define RT305X_ESW_REG_ATS1		0x2c
+#define RT305X_ESW_REG_ATS2		0x30
+#define RT305X_ESW_REG_PVIDC(_n)	(0x40 + 4 * (_n))
+#define RT305X_ESW_REG_VLANI(_n)	(0x50 + 4 * (_n))
+#define RT305X_ESW_REG_VMSC(_n)		(0x70 + 4 * (_n))
+#define RT305X_ESW_REG_POA		0x80
+#define RT305X_ESW_REG_FPA		0x84
+#define RT305X_ESW_REG_SOCPC		0x8c
+#define RT305X_ESW_REG_POC0		0x90
+#define RT305X_ESW_REG_POC1		0x94
+#define RT305X_ESW_REG_POC2		0x98
+#define RT305X_ESW_REG_SGC		0x9c
+#define RT305X_ESW_REG_STRT		0xa0
+#define RT305X_ESW_REG_PCR0		0xc0
+#define RT305X_ESW_REG_PCR1		0xc4
+#define RT305X_ESW_REG_FPA2		0xc8
+#define RT305X_ESW_REG_FCT2		0xcc
+#define RT305X_ESW_REG_SGC2		0xe4
+#define RT305X_ESW_REG_P0LED		0xa4
+#define RT305X_ESW_REG_P1LED		0xa8
+#define RT305X_ESW_REG_P2LED		0xac
+#define RT305X_ESW_REG_P3LED		0xb0
+#define RT305X_ESW_REG_P4LED		0xb4
+#define RT305X_ESW_REG_PXPC(_x)		(0xe8 + (4 * _x))
+#define RT305X_ESW_REG_P1PC		0xec
+#define RT305X_ESW_REG_P2PC		0xf0
+#define RT305X_ESW_REG_P3PC		0xf4
+#define RT305X_ESW_REG_P4PC		0xf8
+#define RT305X_ESW_REG_P5PC		0xfc
+
+#define RT305X_ESW_LED_LINK		0
+#define RT305X_ESW_LED_100M		1
+#define RT305X_ESW_LED_DUPLEX		2
+#define RT305X_ESW_LED_ACTIVITY		3
+#define RT305X_ESW_LED_COLLISION	4
+#define RT305X_ESW_LED_LINKACT		5
+#define RT305X_ESW_LED_DUPLCOLL		6
+#define RT305X_ESW_LED_10MACT		7
+#define RT305X_ESW_LED_100MACT		8
+/* Additional led states not in datasheet: */
+#define RT305X_ESW_LED_BLINK		10
+#define RT305X_ESW_LED_ON		12
+
+#define RT305X_ESW_LINK_S		25
+#define RT305X_ESW_DUPLEX_S		9
+#define RT305X_ESW_SPD_S		0
+
+#define RT305X_ESW_PCR0_WT_NWAY_DATA_S	16
+#define RT305X_ESW_PCR0_WT_PHY_CMD	BIT(13)
+#define RT305X_ESW_PCR0_CPU_PHY_REG_S	8
+
+#define RT305X_ESW_PCR1_WT_DONE		BIT(0)
+
+#define RT305X_ESW_ATS_TIMEOUT		(5 * HZ)
+#define RT305X_ESW_PHY_TIMEOUT		(5 * HZ)
+
+#define RT305X_ESW_PVIDC_PVID_M		0xfff
+#define RT305X_ESW_PVIDC_PVID_S		12
+
+#define RT305X_ESW_VLANI_VID_M		0xfff
+#define RT305X_ESW_VLANI_VID_S		12
+
+#define RT305X_ESW_VMSC_MSC_M		0xff
+#define RT305X_ESW_VMSC_MSC_S		8
+
+#define RT305X_ESW_SOCPC_DISUN2CPU_S	0
+#define RT305X_ESW_SOCPC_DISMC2CPU_S	8
+#define RT305X_ESW_SOCPC_DISBC2CPU_S	16
+#define RT305X_ESW_SOCPC_CRC_PADDING	BIT(25)
+
+#define RT305X_ESW_POC0_EN_BP_S		0
+#define RT305X_ESW_POC0_EN_FC_S		8
+#define RT305X_ESW_POC0_DIS_RMC2CPU_S	16
+#define RT305X_ESW_POC0_DIS_PORT_M	0x7f
+#define RT305X_ESW_POC0_DIS_PORT_S	23
+
+#define RT305X_ESW_POC2_UNTAG_EN_M	0xff
+#define RT305X_ESW_POC2_UNTAG_EN_S	0
+#define RT305X_ESW_POC2_ENAGING_S	8
+#define RT305X_ESW_POC2_DIS_UC_PAUSE_S	16
+
+#define RT305X_ESW_SGC2_DOUBLE_TAG_M	0x7f
+#define RT305X_ESW_SGC2_DOUBLE_TAG_S	0
+#define RT305X_ESW_SGC2_LAN_PMAP_M	0x3f
+#define RT305X_ESW_SGC2_LAN_PMAP_S	24
+
+#define RT305X_ESW_PFC1_EN_VLAN_M	0xff
+#define RT305X_ESW_PFC1_EN_VLAN_S	16
+#define RT305X_ESW_PFC1_EN_TOS_S	24
+
+#define RT305X_ESW_VLAN_NONE		0xfff
+
+#define RT305X_ESW_GSC_BC_STROM_MASK	0x3
+#define RT305X_ESW_GSC_BC_STROM_SHIFT	4
+
+#define RT305X_ESW_GSC_LED_FREQ_MASK	0x3
+#define RT305X_ESW_GSC_LED_FREQ_SHIFT	23
+
+#define RT305X_ESW_POA_LINK_MASK	0x1f
+#define RT305X_ESW_POA_LINK_SHIFT	25
+
+#define RT305X_ESW_PORT_ST_CHG		BIT(26)
+#define RT305X_ESW_PORT0		0
+#define RT305X_ESW_PORT1		1
+#define RT305X_ESW_PORT2		2
+#define RT305X_ESW_PORT3		3
+#define RT305X_ESW_PORT4		4
+#define RT305X_ESW_PORT5		5
+#define RT305X_ESW_PORT6		6
+
+#define RT305X_ESW_PORTS_NONE		0
+
+#define RT305X_ESW_PMAP_LLLLLL		0x3f
+#define RT305X_ESW_PMAP_LLLLWL		0x2f
+#define RT305X_ESW_PMAP_WLLLLL		0x3e
+
+#define RT305X_ESW_PORTS_INTERNAL					\
+		(BIT(RT305X_ESW_PORT0) | BIT(RT305X_ESW_PORT1) |	\
+		 BIT(RT305X_ESW_PORT2) | BIT(RT305X_ESW_PORT3) |	\
+		 BIT(RT305X_ESW_PORT4))
+
+#define RT305X_ESW_PORTS_NOCPU						\
+		(RT305X_ESW_PORTS_INTERNAL | BIT(RT305X_ESW_PORT5))
+
+#define RT305X_ESW_PORTS_CPU	BIT(RT305X_ESW_PORT6)
+
+#define RT305X_ESW_PORTS_ALL						\
+		(RT305X_ESW_PORTS_NOCPU | RT305X_ESW_PORTS_CPU)
+
+#define RT305X_ESW_NUM_VLANS		16
+#define RT305X_ESW_NUM_VIDS		4096
+#define RT305X_ESW_NUM_PORTS		7
+#define RT305X_ESW_NUM_LANWAN		6
+#define RT305X_ESW_NUM_LEDS		5
+
+#define RT5350_ESW_REG_PXTPC(_x)	(0x150 + (4 * _x))
+#define RT5350_EWS_REG_LED_POLARITY	0x168
+#define RT5350_RESET_EPHY		BIT(24)
+#define SYSC_REG_RESET_CTRL		0x34
+
+enum {
+	/* Global attributes. */
+	RT305X_ESW_ATTR_ENABLE_VLAN,
+	RT305X_ESW_ATTR_ALT_VLAN_DISABLE,
+	RT305X_ESW_ATTR_BC_STATUS,
+	RT305X_ESW_ATTR_LED_FREQ,
+	/* Port attributes. */
+	RT305X_ESW_ATTR_PORT_DISABLE,
+	RT305X_ESW_ATTR_PORT_DOUBLETAG,
+	RT305X_ESW_ATTR_PORT_UNTAG,
+	RT305X_ESW_ATTR_PORT_LED,
+	RT305X_ESW_ATTR_PORT_LAN,
+	RT305X_ESW_ATTR_PORT_RECV_BAD,
+	RT305X_ESW_ATTR_PORT_RECV_GOOD,
+	RT5350_ESW_ATTR_PORT_TR_BAD,
+	RT5350_ESW_ATTR_PORT_TR_GOOD,
+};
+
+struct esw_port {
+	bool	disable;
+	bool	doubletag;
+	bool	untag;
+	u8	led;
+	u16	pvid;
+};
+
+struct esw_vlan {
+	u8	ports;
+	u16	vid;
+};
+
+struct rt305x_esw {
+	struct device		*dev;
+	void __iomem		*base;
+	int			irq;
+	const struct rt305x_esw_platform_data *pdata;
+	/* Protects against concurrent register rmw operations. */
+	spinlock_t		reg_rw_lock;
+
+	unsigned char		port_map;
+	unsigned int		reg_initval_fct2;
+	unsigned int		reg_initval_fpa2;
+	unsigned int		reg_led_polarity;
+
+
+	struct switch_dev	swdev;
+	bool			global_vlan_enable;
+	bool			alt_vlan_disable;
+	int			bc_storm_protect;
+	int			led_frequency;
+	struct esw_vlan vlans[RT305X_ESW_NUM_VLANS];
+	struct esw_port ports[RT305X_ESW_NUM_PORTS];
+
+};
+
+static inline void esw_w32(struct rt305x_esw *esw, u32 val, unsigned reg)
+{
+	__raw_writel(val, esw->base + reg);
+}
+
+static inline u32 esw_r32(struct rt305x_esw *esw, unsigned reg)
+{
+	return __raw_readl(esw->base + reg);
+}
+
+static inline void esw_rmw_raw(struct rt305x_esw *esw, unsigned reg, unsigned long mask,
+		   unsigned long val)
+{
+	unsigned long t;
+
+	t = __raw_readl(esw->base + reg) & ~mask;
+	__raw_writel(t | val, esw->base + reg);
+}
+
+static void esw_rmw(struct rt305x_esw *esw, unsigned reg, unsigned long mask,
+	       unsigned long val)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&esw->reg_rw_lock, flags);
+	esw_rmw_raw(esw, reg, mask, val);
+	spin_unlock_irqrestore(&esw->reg_rw_lock, flags);
+}
+
+static u32 rt305x_mii_write(struct rt305x_esw *esw, u32 phy_addr, u32 phy_register,
+		 u32 write_data)
+{
+	unsigned long t_start = jiffies;
+	int ret = 0;
+
+	while (1) {
+		if (!(esw_r32(esw, RT305X_ESW_REG_PCR1) &
+		      RT305X_ESW_PCR1_WT_DONE))
+			break;
+		if (time_after(jiffies, t_start + RT305X_ESW_PHY_TIMEOUT)) {
+			ret = 1;
+			goto out;
+		}
+	}
+
+	write_data &= 0xffff;
+	esw_w32(esw,
+		      (write_data << RT305X_ESW_PCR0_WT_NWAY_DATA_S) |
+		      (phy_register << RT305X_ESW_PCR0_CPU_PHY_REG_S) |
+		      (phy_addr) | RT305X_ESW_PCR0_WT_PHY_CMD,
+		      RT305X_ESW_REG_PCR0);
+
+	t_start = jiffies;
+	while (1) {
+		if (esw_r32(esw, RT305X_ESW_REG_PCR1) &
+		    RT305X_ESW_PCR1_WT_DONE)
+			break;
+
+		if (time_after(jiffies, t_start + RT305X_ESW_PHY_TIMEOUT)) {
+			ret = 1;
+			break;
+		}
+	}
+out:
+	if (ret)
+		printk(KERN_ERR "ramips_eth: MDIO timeout\n");
+	return ret;
+}
+
+static unsigned esw_get_vlan_id(struct rt305x_esw *esw, unsigned vlan)
+{
+	unsigned s;
+	unsigned val;
+
+	s = RT305X_ESW_VLANI_VID_S * (vlan % 2);
+	val = esw_r32(esw, RT305X_ESW_REG_VLANI(vlan / 2));
+	val = (val >> s) & RT305X_ESW_VLANI_VID_M;
+
+	return val;
+}
+
+static void esw_set_vlan_id(struct rt305x_esw *esw, unsigned vlan, unsigned vid)
+{
+	unsigned s;
+
+	s = RT305X_ESW_VLANI_VID_S * (vlan % 2);
+	esw_rmw(esw,
+		       RT305X_ESW_REG_VLANI(vlan / 2),
+		       RT305X_ESW_VLANI_VID_M << s,
+		       (vid & RT305X_ESW_VLANI_VID_M) << s);
+}
+
+static unsigned esw_get_pvid(struct rt305x_esw *esw, unsigned port)
+{
+	unsigned s, val;
+
+	s = RT305X_ESW_PVIDC_PVID_S * (port % 2);
+	val = esw_r32(esw, RT305X_ESW_REG_PVIDC(port / 2));
+	return (val >> s) & RT305X_ESW_PVIDC_PVID_M;
+}
+
+static void esw_set_pvid(struct rt305x_esw *esw, unsigned port, unsigned pvid)
+{
+	unsigned s;
+
+	s = RT305X_ESW_PVIDC_PVID_S * (port % 2);
+	esw_rmw(esw,
+		       RT305X_ESW_REG_PVIDC(port / 2),
+		       RT305X_ESW_PVIDC_PVID_M << s,
+		       (pvid & RT305X_ESW_PVIDC_PVID_M) << s);
+}
+
+static unsigned esw_get_vmsc(struct rt305x_esw *esw, unsigned vlan)
+{
+	unsigned s, val;
+
+	s = RT305X_ESW_VMSC_MSC_S * (vlan % 4);
+	val = esw_r32(esw, RT305X_ESW_REG_VMSC(vlan / 4));
+	val = (val >> s) & RT305X_ESW_VMSC_MSC_M;
+
+	return val;
+}
+
+static void esw_set_vmsc(struct rt305x_esw *esw, unsigned vlan, unsigned msc)
+{
+	unsigned s;
+
+	s = RT305X_ESW_VMSC_MSC_S * (vlan % 4);
+	esw_rmw(esw,
+		       RT305X_ESW_REG_VMSC(vlan / 4),
+		       RT305X_ESW_VMSC_MSC_M << s,
+		       (msc & RT305X_ESW_VMSC_MSC_M) << s);
+}
+
+static unsigned esw_get_port_disable(struct rt305x_esw *esw)
+{
+	unsigned reg;
+	reg = esw_r32(esw, RT305X_ESW_REG_POC0);
+	return (reg >> RT305X_ESW_POC0_DIS_PORT_S) &
+	       RT305X_ESW_POC0_DIS_PORT_M;
+}
+
+static void esw_set_port_disable(struct rt305x_esw *esw, unsigned disable_mask)
+{
+	unsigned old_mask;
+	unsigned enable_mask;
+	unsigned changed;
+	int i;
+
+	old_mask = esw_get_port_disable(esw);
+	changed = old_mask ^ disable_mask;
+	enable_mask = old_mask & disable_mask;
+
+	/* enable before writing to MII */
+	esw_rmw(esw, RT305X_ESW_REG_POC0,
+		       (RT305X_ESW_POC0_DIS_PORT_M <<
+			RT305X_ESW_POC0_DIS_PORT_S),
+		       enable_mask << RT305X_ESW_POC0_DIS_PORT_S);
+
+	for (i = 0; i < RT305X_ESW_NUM_LEDS; i++) {
+		if (!(changed & (1 << i)))
+			continue;
+		if (disable_mask & (1 << i)) {
+			/* disable */
+			rt305x_mii_write(esw, i, MII_BMCR,
+					 BMCR_PDOWN);
+		} else {
+			/* enable */
+			rt305x_mii_write(esw, i, MII_BMCR,
+					 BMCR_FULLDPLX |
+					 BMCR_ANENABLE |
+					 BMCR_ANRESTART |
+					 BMCR_SPEED100);
+		}
+	}
+
+	/* disable after writing to MII */
+	esw_rmw(esw, RT305X_ESW_REG_POC0,
+		       (RT305X_ESW_POC0_DIS_PORT_M <<
+			RT305X_ESW_POC0_DIS_PORT_S),
+		       disable_mask << RT305X_ESW_POC0_DIS_PORT_S);
+}
+
+static void esw_set_gsc(struct rt305x_esw *esw)
+{
+	esw_rmw(esw, RT305X_ESW_REG_SGC,
+		RT305X_ESW_GSC_BC_STROM_MASK << RT305X_ESW_GSC_BC_STROM_SHIFT,
+		esw->bc_storm_protect << RT305X_ESW_GSC_BC_STROM_SHIFT);
+	esw_rmw(esw, RT305X_ESW_REG_SGC,
+		RT305X_ESW_GSC_LED_FREQ_MASK << RT305X_ESW_GSC_LED_FREQ_SHIFT,
+		esw->led_frequency << RT305X_ESW_GSC_LED_FREQ_SHIFT);
+}
+
+static int esw_apply_config(struct switch_dev *dev);
+
+static void esw_hw_init(struct rt305x_esw *esw)
+{
+	int i;
+	u8 port_disable = 0;
+	u8 port_map = RT305X_ESW_PMAP_LLLLLL;
+
+	/* vodoo from original driver */
+	esw_w32(esw, 0xC8A07850, RT305X_ESW_REG_FCT0);
+	esw_w32(esw, 0x00000000, RT305X_ESW_REG_SGC2);
+	/* Port priority 1 for all ports, vlan enabled. */
+	esw_w32(esw, 0x00005555 |
+		      (RT305X_ESW_PORTS_ALL << RT305X_ESW_PFC1_EN_VLAN_S),
+		      RT305X_ESW_REG_PFC1);
+
+	/* Enable Back Pressure, and Flow Control */
+	esw_w32(esw,
+		      ((RT305X_ESW_PORTS_ALL << RT305X_ESW_POC0_EN_BP_S) |
+		       (RT305X_ESW_PORTS_ALL << RT305X_ESW_POC0_EN_FC_S)),
+		      RT305X_ESW_REG_POC0);
+
+	/* Enable Aging, and VLAN TAG removal */
+	esw_w32(esw,
+		      ((RT305X_ESW_PORTS_ALL << RT305X_ESW_POC2_ENAGING_S) |
+		       (RT305X_ESW_PORTS_NOCPU << RT305X_ESW_POC2_UNTAG_EN_S)),
+		      RT305X_ESW_REG_POC2);
+
+	if (esw->reg_initval_fct2)
+		esw_w32(esw, esw->reg_initval_fct2, RT305X_ESW_REG_FCT2);
+	else
+		esw_w32(esw, esw->pdata->reg_initval_fct2, RT305X_ESW_REG_FCT2);
+
+	/*
+	 * 300s aging timer, max packet len 1536, broadcast storm prevention
+	 * disabled, disable collision abort, mac xor48 hash, 10 packet back
+	 * pressure jam, GMII disable was_transmit, back pressure disabled,
+	 * 30ms led flash, unmatched IGMP as broadcast, rmc tb fault to all
+	 * ports.
+	 */
+	esw_w32(esw, 0x0008a301, RT305X_ESW_REG_SGC);
+
+	/* Setup SoC Port control register */
+	esw_w32(esw,
+		      (RT305X_ESW_SOCPC_CRC_PADDING |
+		       (RT305X_ESW_PORTS_CPU << RT305X_ESW_SOCPC_DISUN2CPU_S) |
+		       (RT305X_ESW_PORTS_CPU << RT305X_ESW_SOCPC_DISMC2CPU_S) |
+		       (RT305X_ESW_PORTS_CPU << RT305X_ESW_SOCPC_DISBC2CPU_S)),
+		      RT305X_ESW_REG_SOCPC);
+
+	if (esw->reg_initval_fpa2)
+		esw_w32(esw, esw->reg_initval_fpa2, RT305X_ESW_REG_FPA2);
+	else
+		esw_w32(esw, esw->pdata->reg_initval_fpa2, RT305X_ESW_REG_FPA2);
+	esw_w32(esw, 0x00000000, RT305X_ESW_REG_FPA);
+
+	/* Force Link/Activity on ports */
+	esw_w32(esw, 0x00000005, RT305X_ESW_REG_P0LED);
+	esw_w32(esw, 0x00000005, RT305X_ESW_REG_P1LED);
+	esw_w32(esw, 0x00000005, RT305X_ESW_REG_P2LED);
+	esw_w32(esw, 0x00000005, RT305X_ESW_REG_P3LED);
+	esw_w32(esw, 0x00000005, RT305X_ESW_REG_P4LED);
+
+	/* Copy disabled port configuration from bootloader setup */
+	port_disable = esw_get_port_disable(esw);
+	for (i = 0; i < 6; i++)
+		esw->ports[i].disable = (port_disable & (1 << i)) != 0;
+
+	if (soc_is_rt3352()) {
+		/* reset EPHY */
+		u32 val = rt_sysc_r32(SYSC_REG_RESET_CTRL);
+		rt_sysc_w32(val | RT5350_RESET_EPHY, SYSC_REG_RESET_CTRL);
+		rt_sysc_w32(val, SYSC_REG_RESET_CTRL);
+
+		rt305x_mii_write(esw, 0, 31, 0x8000);
+		for (i = 0; i < 5; i++) {
+			if (esw->ports[i].disable) {
+				rt305x_mii_write(esw, i, MII_BMCR, BMCR_PDOWN);
+			} else {
+				rt305x_mii_write(esw, i, MII_BMCR,
+					 BMCR_FULLDPLX |
+					 BMCR_ANENABLE |
+					 BMCR_SPEED100);
+			}
+			/* TX10 waveform coefficient LSB=0 disable PHY */
+			rt305x_mii_write(esw, i, 26, 0x1601);
+			/* TX100/TX10 AD/DA current bias */
+			rt305x_mii_write(esw, i, 29, 0x7016);
+			/* TX100 slew rate control */
+			rt305x_mii_write(esw, i, 30, 0x0038);
+		}
+
+		/* select global register */
+		rt305x_mii_write(esw, 0, 31, 0x0);
+		/* enlarge agcsel threshold 3 and threshold 2 */
+		rt305x_mii_write(esw, 0, 1, 0x4a40);
+		/* enlarge agcsel threshold 5 and threshold 4 */
+		rt305x_mii_write(esw, 0, 2, 0x6254);
+		/* enlarge agcsel threshold  */
+		rt305x_mii_write(esw, 0, 3, 0xa17f);
+		rt305x_mii_write(esw, 0,12, 0x7eaa);
+		/* longer TP_IDL tail length */
+		rt305x_mii_write(esw, 0, 14, 0x65);
+		/* increased squelch pulse count threshold. */
+		rt305x_mii_write(esw, 0, 16, 0x0684);
+		/* set TX10 signal amplitude threshold to minimum */
+		rt305x_mii_write(esw, 0, 17, 0x0fe0);
+		/* set squelch amplitude to higher threshold */
+		rt305x_mii_write(esw, 0, 18, 0x40ba);
+		/* tune TP_IDL tail and head waveform, enable power down slew rate control */
+		rt305x_mii_write(esw, 0, 22, 0x253f);
+		/* set PLL/Receive bias current are calibrated */
+		rt305x_mii_write(esw, 0, 27, 0x2fda);
+		/* change PLL/Receive bias current to internal(RT3350) */
+		rt305x_mii_write(esw, 0, 28, 0xc410);
+		/* change PLL bias current to internal(RT3052_MP3) */
+		rt305x_mii_write(esw, 0, 29, 0x598b);
+		/* select local register */
+		rt305x_mii_write(esw, 0, 31, 0x8000);
+	} else if (soc_is_rt5350()) {
+		/* reset EPHY */
+		u32 val = rt_sysc_r32(SYSC_REG_RESET_CTRL);
+		rt_sysc_w32(val | RT5350_RESET_EPHY, SYSC_REG_RESET_CTRL);
+		rt_sysc_w32(val, SYSC_REG_RESET_CTRL);
+
+		/* set the led polarity */
+		esw_w32(esw, esw->reg_led_polarity & 0x1F, RT5350_EWS_REG_LED_POLARITY);
+
+		/* local registers */
+		rt305x_mii_write(esw, 0, 31, 0x8000);
+		for (i = 0; i < 5; i++) {
+			if (esw->ports[i].disable) {
+				rt305x_mii_write(esw, i, MII_BMCR, BMCR_PDOWN);
+			} else {
+				rt305x_mii_write(esw, i, MII_BMCR,
+					 BMCR_FULLDPLX |
+					 BMCR_ANENABLE |
+					 BMCR_SPEED100);
+			}
+			/* TX10 waveform coefficient LSB=0 disable PHY */
+			rt305x_mii_write(esw, i, 26, 0x1601);
+			/* TX100/TX10 AD/DA current bias */
+			rt305x_mii_write(esw, i, 29, 0x7015);
+			/* TX100 slew rate control */
+			rt305x_mii_write(esw, i, 30, 0x0038);
+		}
+
+		/* global registers */
+		rt305x_mii_write(esw, 0, 31, 0x0);
+		/* enlarge agcsel threshold 3 and threshold 2 */
+		rt305x_mii_write(esw, 0, 1, 0x4a40);
+		/* enlarge agcsel threshold 5 and threshold 4 */
+		rt305x_mii_write(esw, 0, 2, 0x6254);
+		/* enlarge agcsel threshold 6 */
+		rt305x_mii_write(esw, 0, 3, 0xa17f);
+		rt305x_mii_write(esw, 0, 12, 0x7eaa);
+		/* longer TP_IDL tail length */
+		rt305x_mii_write(esw, 0, 14, 0x65);
+		/* increased squelch pulse count threshold. */
+		rt305x_mii_write(esw, 0, 16, 0x0684);
+		/* set TX10 signal amplitude threshold to minimum */
+		rt305x_mii_write(esw, 0, 17, 0x0fe0);
+		/* set squelch amplitude to higher threshold */
+		rt305x_mii_write(esw, 0, 18, 0x40ba);
+		/* tune TP_IDL tail and head waveform, enable power down slew rate control */
+		rt305x_mii_write(esw, 0, 22, 0x253f);
+		/* set PLL/Receive bias current are calibrated */
+		rt305x_mii_write(esw, 0, 27, 0x2fda);
+		/* change PLL/Receive bias current to internal(RT3350) */
+		rt305x_mii_write(esw, 0, 28, 0xc410);
+		/* change PLL bias current to internal(RT3052_MP3) */
+		rt305x_mii_write(esw, 0, 29, 0x598b);
+		/* select local register */
+		rt305x_mii_write(esw, 0, 31, 0x8000);
+	} else {
+		rt305x_mii_write(esw, 0, 31, 0x8000);
+		for (i = 0; i < 5; i++) {
+			if (esw->ports[i].disable) {
+				rt305x_mii_write(esw, i, MII_BMCR, BMCR_PDOWN);
+			} else {
+				rt305x_mii_write(esw, i, MII_BMCR,
+					 BMCR_FULLDPLX |
+					 BMCR_ANENABLE |
+					 BMCR_SPEED100);
+			}
+			/* TX10 waveform coefficient */
+			rt305x_mii_write(esw, i, 26, 0x1601);
+			/* TX100/TX10 AD/DA current bias */
+			rt305x_mii_write(esw, i, 29, 0x7058);
+			/* TX100 slew rate control */
+			rt305x_mii_write(esw, i, 30, 0x0018);
+		}
+
+		/* PHY IOT */
+		/* select global register */
+		rt305x_mii_write(esw, 0, 31, 0x0);
+		/* tune TP_IDL tail and head waveform */
+		rt305x_mii_write(esw, 0, 22, 0x052f);
+		/* set TX10 signal amplitude threshold to minimum */
+		rt305x_mii_write(esw, 0, 17, 0x0fe0);
+		/* set squelch amplitude to higher threshold */
+		rt305x_mii_write(esw, 0, 18, 0x40ba);
+		/* longer TP_IDL tail length */
+		rt305x_mii_write(esw, 0, 14, 0x65);
+		/* select local register */
+		rt305x_mii_write(esw, 0, 31, 0x8000);
+	}
+
+	if (esw->port_map)
+		port_map = esw->port_map;
+	else
+		port_map = RT305X_ESW_PMAP_LLLLLL;
+
+	/*
+	 * Unused HW feature, but still nice to be consistent here...
+	 * This is also exported to userspace ('lan' attribute) so it's
+	 * conveniently usable to decide which ports go into the wan vlan by
+	 * default.
+	 */
+	esw_rmw(esw, RT305X_ESW_REG_SGC2,
+		       RT305X_ESW_SGC2_LAN_PMAP_M << RT305X_ESW_SGC2_LAN_PMAP_S,
+		       port_map << RT305X_ESW_SGC2_LAN_PMAP_S);
+
+	/* make the switch leds blink */
+	for (i = 0; i < RT305X_ESW_NUM_LEDS; i++)
+		esw->ports[i].led = 0x05;
+
+	/* Apply the empty config. */
+	esw_apply_config(&esw->swdev);
+
+	/* Only unmask the port change interrupt */
+	esw_w32(esw, ~RT305X_ESW_PORT_ST_CHG, RT305X_ESW_REG_IMR);
+}
+
+static irqreturn_t esw_interrupt(int irq, void *_esw)
+{
+	struct rt305x_esw *esw = (struct rt305x_esw *) _esw;
+	u32 status;
+
+	status = esw_r32(esw, RT305X_ESW_REG_ISR);
+	if (status & RT305X_ESW_PORT_ST_CHG) {
+		u32 link = esw_r32(esw, RT305X_ESW_REG_POA);
+		link >>= RT305X_ESW_POA_LINK_SHIFT;
+		link &= RT305X_ESW_POA_LINK_MASK;
+		dev_info(esw->dev, "link changed 0x%02X\n", link);
+	}
+	esw_w32(esw, status, RT305X_ESW_REG_ISR);
+
+	return IRQ_HANDLED;
+}
+
+static int esw_apply_config(struct switch_dev *dev)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+	int i;
+	u8 disable = 0;
+	u8 doubletag = 0;
+	u8 en_vlan = 0;
+	u8 untag = 0;
+
+	for (i = 0; i < RT305X_ESW_NUM_VLANS; i++) {
+		u32 vid, vmsc;
+		if (esw->global_vlan_enable) {
+			vid = esw->vlans[i].vid;
+			vmsc = esw->vlans[i].ports;
+		} else {
+			vid = RT305X_ESW_VLAN_NONE;
+			vmsc = RT305X_ESW_PORTS_NONE;
+		}
+		esw_set_vlan_id(esw, i, vid);
+		esw_set_vmsc(esw, i, vmsc);
+	}
+
+	for (i = 0; i < RT305X_ESW_NUM_PORTS; i++) {
+		u32 pvid;
+		disable |= esw->ports[i].disable << i;
+		if (esw->global_vlan_enable) {
+			doubletag |= esw->ports[i].doubletag << i;
+			en_vlan   |= 1                       << i;
+			untag     |= esw->ports[i].untag     << i;
+			pvid       = esw->ports[i].pvid;
+		} else {
+			int x = esw->alt_vlan_disable ? 0 : 1;
+			doubletag |= x << i;
+			en_vlan   |= x << i;
+			untag     |= x << i;
+			pvid       = 0;
+		}
+		esw_set_pvid(esw, i, pvid);
+		if (i < RT305X_ESW_NUM_LEDS)
+			esw_w32(esw, esw->ports[i].led,
+				      RT305X_ESW_REG_P0LED + 4*i);
+	}
+
+	esw_set_gsc(esw);
+	esw_set_port_disable(esw, disable);
+	esw_rmw(esw, RT305X_ESW_REG_SGC2,
+		       (RT305X_ESW_SGC2_DOUBLE_TAG_M <<
+			RT305X_ESW_SGC2_DOUBLE_TAG_S),
+		       doubletag << RT305X_ESW_SGC2_DOUBLE_TAG_S);
+	esw_rmw(esw, RT305X_ESW_REG_PFC1,
+		       RT305X_ESW_PFC1_EN_VLAN_M << RT305X_ESW_PFC1_EN_VLAN_S,
+		       en_vlan << RT305X_ESW_PFC1_EN_VLAN_S);
+	esw_rmw(esw, RT305X_ESW_REG_POC2,
+		       RT305X_ESW_POC2_UNTAG_EN_M << RT305X_ESW_POC2_UNTAG_EN_S,
+		       untag << RT305X_ESW_POC2_UNTAG_EN_S);
+
+	if (!esw->global_vlan_enable) {
+		/*
+		 * Still need to put all ports into vlan 0 or they'll be
+		 * isolated.
+		 * NOTE: vlan 0 is special, no vlan tag is prepended
+		 */
+		esw_set_vlan_id(esw, 0, 0);
+		esw_set_vmsc(esw, 0, RT305X_ESW_PORTS_ALL);
+	}
+
+	return 0;
+}
+
+static int esw_reset_switch(struct switch_dev *dev)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	esw->global_vlan_enable = 0;
+	memset(esw->ports, 0, sizeof(esw->ports));
+	memset(esw->vlans, 0, sizeof(esw->vlans));
+	esw_hw_init(esw);
+
+	return 0;
+}
+
+static int esw_get_vlan_enable(struct switch_dev *dev,
+			   const struct switch_attr *attr,
+			   struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	val->value.i = esw->global_vlan_enable;
+
+	return 0;
+}
+
+static int esw_set_vlan_enable(struct switch_dev *dev,
+			   const struct switch_attr *attr,
+			   struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	esw->global_vlan_enable = val->value.i != 0;
+
+	return 0;
+}
+
+static int esw_get_alt_vlan_disable(struct switch_dev *dev,
+				const struct switch_attr *attr,
+				struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	val->value.i = esw->alt_vlan_disable;
+
+	return 0;
+}
+
+static int esw_set_alt_vlan_disable(struct switch_dev *dev,
+				const struct switch_attr *attr,
+				struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	esw->alt_vlan_disable = val->value.i != 0;
+
+	return 0;
+}
+
+static int
+rt305x_esw_set_bc_status(struct switch_dev *dev,
+			const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	esw->bc_storm_protect = val->value.i & RT305X_ESW_GSC_BC_STROM_MASK;
+
+	return 0;
+}
+
+static int
+rt305x_esw_get_bc_status(struct switch_dev *dev,
+			const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	val->value.i = esw->bc_storm_protect;
+
+	return 0;
+}
+
+static int
+rt305x_esw_set_led_freq(struct switch_dev *dev,
+			const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	esw->led_frequency = val->value.i & RT305X_ESW_GSC_LED_FREQ_MASK;
+
+	return 0;
+}
+
+static int
+rt305x_esw_get_led_freq(struct switch_dev *dev,
+			const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	val->value.i = esw->led_frequency;
+
+	return 0;
+}
+
+static int esw_get_port_link(struct switch_dev *dev,
+			 int port,
+			 struct switch_port_link *link)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+	u32 speed, poa;
+
+	if (port < 0 || port >= RT305X_ESW_NUM_PORTS)
+		return -EINVAL;
+
+	poa = esw_r32(esw, RT305X_ESW_REG_POA) >> port;
+
+	link->link = (poa >> RT305X_ESW_LINK_S) & 1;
+	link->duplex = (poa >> RT305X_ESW_DUPLEX_S) & 1;
+	if (port < RT305X_ESW_NUM_LEDS) {
+		speed = (poa >> RT305X_ESW_SPD_S) & 1;
+	} else {
+		if (port == RT305X_ESW_NUM_PORTS - 1)
+			poa >>= 1;
+		speed = (poa >> RT305X_ESW_SPD_S) & 3;
+	}
+	switch (speed) {
+	case 0:
+		link->speed = SWITCH_PORT_SPEED_10;
+		break;
+	case 1:
+		link->speed = SWITCH_PORT_SPEED_100;
+		break;
+	case 2:
+	case 3: /* forced gige speed can be 2 or 3 */
+		link->speed = SWITCH_PORT_SPEED_1000;
+		break;
+	default:
+		link->speed = SWITCH_PORT_SPEED_UNKNOWN;
+		break;
+	}
+
+	return 0;
+}
+
+static int esw_get_port_bool(struct switch_dev *dev,
+			 const struct switch_attr *attr,
+			 struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+	int idx = val->port_vlan;
+	u32 x, reg, shift;
+
+	if (idx < 0 || idx >= RT305X_ESW_NUM_PORTS)
+		return -EINVAL;
+
+	switch (attr->id) {
+	case RT305X_ESW_ATTR_PORT_DISABLE:
+		reg = RT305X_ESW_REG_POC0;
+		shift = RT305X_ESW_POC0_DIS_PORT_S;
+		break;
+	case RT305X_ESW_ATTR_PORT_DOUBLETAG:
+		reg = RT305X_ESW_REG_SGC2;
+		shift = RT305X_ESW_SGC2_DOUBLE_TAG_S;
+		break;
+	case RT305X_ESW_ATTR_PORT_UNTAG:
+		reg = RT305X_ESW_REG_POC2;
+		shift = RT305X_ESW_POC2_UNTAG_EN_S;
+		break;
+	case RT305X_ESW_ATTR_PORT_LAN:
+		reg = RT305X_ESW_REG_SGC2;
+		shift = RT305X_ESW_SGC2_LAN_PMAP_S;
+		if (idx >= RT305X_ESW_NUM_LANWAN)
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	x = esw_r32(esw, reg);
+	val->value.i = (x >> (idx + shift)) & 1;
+
+	return 0;
+}
+
+static int esw_set_port_bool(struct switch_dev *dev,
+			 const struct switch_attr *attr,
+			 struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+	int idx = val->port_vlan;
+
+	if (idx < 0 || idx >= RT305X_ESW_NUM_PORTS ||
+	    val->value.i < 0 || val->value.i > 1)
+		return -EINVAL;
+
+	switch (attr->id) {
+	case RT305X_ESW_ATTR_PORT_DISABLE:
+		esw->ports[idx].disable = val->value.i;
+		break;
+	case RT305X_ESW_ATTR_PORT_DOUBLETAG:
+		esw->ports[idx].doubletag = val->value.i;
+		break;
+	case RT305X_ESW_ATTR_PORT_UNTAG:
+		esw->ports[idx].untag = val->value.i;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int esw_get_port_recv_badgood(struct switch_dev *dev,
+				 const struct switch_attr *attr,
+				 struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+	int idx = val->port_vlan;
+	int shift = attr->id == RT305X_ESW_ATTR_PORT_RECV_GOOD ? 0 : 16;
+	u32 reg;
+
+	if (idx < 0 || idx >= RT305X_ESW_NUM_LANWAN)
+		return -EINVAL;
+	reg = esw_r32(esw, RT305X_ESW_REG_PXPC(idx));
+	val->value.i = (reg >> shift) & 0xffff;
+
+	return 0;
+}
+
+static int
+esw_get_port_tr_badgood(struct switch_dev *dev,
+				 const struct switch_attr *attr,
+				 struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	int idx = val->port_vlan;
+	int shift = attr->id == RT5350_ESW_ATTR_PORT_TR_GOOD ? 0 : 16;
+	u32 reg;
+
+	if (!soc_is_rt5350())
+		return -EINVAL;
+
+	if (idx < 0 || idx >= RT305X_ESW_NUM_LANWAN)
+		return -EINVAL;
+
+	reg = esw_r32(esw, RT5350_ESW_REG_PXTPC(idx));
+	val->value.i = (reg >> shift) & 0xffff;
+
+	return 0;
+}
+
+static int esw_get_port_led(struct switch_dev *dev,
+			const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+	int idx = val->port_vlan;
+
+	if (idx < 0 || idx >= RT305X_ESW_NUM_PORTS ||
+	    idx >= RT305X_ESW_NUM_LEDS)
+		return -EINVAL;
+
+	val->value.i = esw_r32(esw, RT305X_ESW_REG_P0LED + 4*idx);
+
+	return 0;
+}
+
+static int esw_set_port_led(struct switch_dev *dev,
+			const struct switch_attr *attr,
+			struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+	int idx = val->port_vlan;
+
+	if (idx < 0 || idx >= RT305X_ESW_NUM_LEDS)
+		return -EINVAL;
+
+	esw->ports[idx].led = val->value.i;
+
+	return 0;
+}
+
+static int esw_get_port_pvid(struct switch_dev *dev, int port, int *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	if (port >= RT305X_ESW_NUM_PORTS)
+		return -EINVAL;
+
+	*val = esw_get_pvid(esw, port);
+
+	return 0;
+}
+
+static int esw_set_port_pvid(struct switch_dev *dev, int port, int val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+
+	if (port >= RT305X_ESW_NUM_PORTS)
+		return -EINVAL;
+
+	esw->ports[port].pvid = val;
+
+	return 0;
+}
+
+static int esw_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+	u32 vmsc, poc2;
+	int vlan_idx = -1;
+	int i;
+
+	val->len = 0;
+
+	if (val->port_vlan < 0 || val->port_vlan >= RT305X_ESW_NUM_VIDS)
+		return -EINVAL;
+
+	/* valid vlan? */
+	for (i = 0; i < RT305X_ESW_NUM_VLANS; i++) {
+		if (esw_get_vlan_id(esw, i) == val->port_vlan &&
+		    esw_get_vmsc(esw, i) != RT305X_ESW_PORTS_NONE) {
+			vlan_idx = i;
+			break;
+		}
+	}
+
+	if (vlan_idx == -1)
+		return -EINVAL;
+
+	vmsc = esw_get_vmsc(esw, vlan_idx);
+	poc2 = esw_r32(esw, RT305X_ESW_REG_POC2);
+
+	for (i = 0; i < RT305X_ESW_NUM_PORTS; i++) {
+		struct switch_port *p;
+		int port_mask = 1 << i;
+
+		if (!(vmsc & port_mask))
+			continue;
+
+		p = &val->value.ports[val->len++];
+		p->id = i;
+		if (poc2 & (port_mask << RT305X_ESW_POC2_UNTAG_EN_S))
+			p->flags = 0;
+		else
+			p->flags = 1 << SWITCH_PORT_FLAG_TAGGED;
+	}
+
+	return 0;
+}
+
+static int esw_set_vlan_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct rt305x_esw *esw = container_of(dev, struct rt305x_esw, swdev);
+	int ports;
+	int vlan_idx = -1;
+	int i;
+
+	if (val->port_vlan < 0 || val->port_vlan >= RT305X_ESW_NUM_VIDS ||
+	    val->len > RT305X_ESW_NUM_PORTS)
+		return -EINVAL;
+
+	/* one of the already defined vlans? */
+	for (i = 0; i < RT305X_ESW_NUM_VLANS; i++) {
+		if (esw->vlans[i].vid == val->port_vlan &&
+		    esw->vlans[i].ports != RT305X_ESW_PORTS_NONE) {
+			vlan_idx = i;
+			break;
+		}
+	}
+
+	/* select a free slot */
+	for (i = 0; vlan_idx == -1 && i < RT305X_ESW_NUM_VLANS; i++) {
+		if (esw->vlans[i].ports == RT305X_ESW_PORTS_NONE)
+			vlan_idx = i;
+	}
+
+	/* bail if all slots are in use */
+	if (vlan_idx == -1)
+		return -EINVAL;
+
+	ports = RT305X_ESW_PORTS_NONE;
+	for (i = 0; i < val->len; i++) {
+		struct switch_port *p = &val->value.ports[i];
+		int port_mask = 1 << p->id;
+		bool untagged = !(p->flags & (1 << SWITCH_PORT_FLAG_TAGGED));
+
+		if (p->id >= RT305X_ESW_NUM_PORTS)
+			return -EINVAL;
+
+		ports |= port_mask;
+		esw->ports[p->id].untag = untagged;
+	}
+	esw->vlans[vlan_idx].ports = ports;
+	if (ports == RT305X_ESW_PORTS_NONE)
+		esw->vlans[vlan_idx].vid = RT305X_ESW_VLAN_NONE;
+	else
+		esw->vlans[vlan_idx].vid = val->port_vlan;
+
+	return 0;
+}
+
+static const struct switch_attr esw_global[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_vlan",
+		.description = "VLAN mode (1:enabled)",
+		.max = 1,
+		.id = RT305X_ESW_ATTR_ENABLE_VLAN,
+		.get = esw_get_vlan_enable,
+		.set = esw_set_vlan_enable,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "alternate_vlan_disable",
+		.description = "Use en_vlan instead of doubletag to disable"
+				" VLAN mode",
+		.max = 1,
+		.id = RT305X_ESW_ATTR_ALT_VLAN_DISABLE,
+		.get = esw_get_alt_vlan_disable,
+		.set = esw_set_alt_vlan_disable,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "bc_storm_protect",
+		.description = "Global broadcast storm protection (0:Disable, 1:64 blocks, 2:96 blocks, 3:128 blocks)",
+		.max = 3,
+		.id = RT305X_ESW_ATTR_BC_STATUS,
+		.get = rt305x_esw_get_bc_status,
+		.set = rt305x_esw_set_bc_status,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "led_frequency",
+		.description = "LED Flash frequency (0:30mS, 1:60mS, 2:240mS, 3:480mS)",
+		.max = 3,
+		.id = RT305X_ESW_ATTR_LED_FREQ,
+		.get = rt305x_esw_get_led_freq,
+		.set = rt305x_esw_set_led_freq,
+	}
+};
+
+static const struct switch_attr esw_port[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "disable",
+		.description = "Port state (1:disabled)",
+		.max = 1,
+		.id = RT305X_ESW_ATTR_PORT_DISABLE,
+		.get = esw_get_port_bool,
+		.set = esw_set_port_bool,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "doubletag",
+		.description = "Double tagging for incoming vlan packets "
+				"(1:enabled)",
+		.max = 1,
+		.id = RT305X_ESW_ATTR_PORT_DOUBLETAG,
+		.get = esw_get_port_bool,
+		.set = esw_set_port_bool,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "untag",
+		.description = "Untag (1:strip outgoing vlan tag)",
+		.max = 1,
+		.id = RT305X_ESW_ATTR_PORT_UNTAG,
+		.get = esw_get_port_bool,
+		.set = esw_set_port_bool,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "led",
+		.description = "LED mode (0:link, 1:100m, 2:duplex, 3:activity,"
+				" 4:collision, 5:linkact, 6:duplcoll, 7:10mact,"
+				" 8:100mact, 10:blink, 11:off, 12:on)",
+		.max = 15,
+		.id = RT305X_ESW_ATTR_PORT_LED,
+		.get = esw_get_port_led,
+		.set = esw_set_port_led,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "lan",
+		.description = "HW port group (0:wan, 1:lan)",
+		.max = 1,
+		.id = RT305X_ESW_ATTR_PORT_LAN,
+		.get = esw_get_port_bool,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "recv_bad",
+		.description = "Receive bad packet counter",
+		.id = RT305X_ESW_ATTR_PORT_RECV_BAD,
+		.get = esw_get_port_recv_badgood,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "recv_good",
+		.description = "Receive good packet counter",
+		.id = RT305X_ESW_ATTR_PORT_RECV_GOOD,
+		.get = esw_get_port_recv_badgood,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "tr_bad",
+
+		.description = "Transmit bad packet counter. rt5350 only",
+		.id = RT5350_ESW_ATTR_PORT_TR_BAD,
+		.get = esw_get_port_tr_badgood,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "tr_good",
+
+		.description = "Transmit good packet counter. rt5350 only",
+		.id = RT5350_ESW_ATTR_PORT_TR_GOOD,
+		.get = esw_get_port_tr_badgood,
+	},
+};
+
+static const struct switch_attr esw_vlan[] = {
+};
+
+static const struct switch_dev_ops esw_ops = {
+	.attr_global = {
+		.attr = esw_global,
+		.n_attr = ARRAY_SIZE(esw_global),
+	},
+	.attr_port = {
+		.attr = esw_port,
+		.n_attr = ARRAY_SIZE(esw_port),
+	},
+	.attr_vlan = {
+		.attr = esw_vlan,
+		.n_attr = ARRAY_SIZE(esw_vlan),
+	},
+	.get_vlan_ports = esw_get_vlan_ports,
+	.set_vlan_ports = esw_set_vlan_ports,
+	.get_port_pvid = esw_get_port_pvid,
+	.set_port_pvid = esw_set_port_pvid,
+	.get_port_link = esw_get_port_link,
+	.apply_config = esw_apply_config,
+	.reset_switch = esw_reset_switch,
+};
+
+static struct rt305x_esw_platform_data rt3050_esw_data = {
+	/* All ports are LAN ports. */
+	.vlan_config            = RT305X_ESW_VLAN_CONFIG_NONE,
+	.reg_initval_fct2       = 0x00d6500c,
+	/*
+	 * ext phy base addr 31, enable port 5 polling, rx/tx clock skew 1,
+	 * turbo mii off, rgmi 3.3v off
+	 * port5: disabled
+	 * port6: enabled, gige, full-duplex, rx/tx-flow-control
+	 */
+	.reg_initval_fpa2       = 0x3f502b28,
+};
+
+static const struct of_device_id ralink_esw_match[] = {
+	{ .compatible = "ralink,rt3050-esw", .data = &rt3050_esw_data },
+	{},
+};
+MODULE_DEVICE_TABLE(of, ralink_esw_match);
+
+static int esw_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	const struct rt305x_esw_platform_data *pdata;
+	const __be32 *port_map, *reg_init;
+	struct rt305x_esw *esw;
+	struct switch_dev *swdev;
+	struct resource *res, *irq;
+	int err;
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		const struct of_device_id *match;
+		match = of_match_device(ralink_esw_match, &pdev->dev);
+		if (match)
+			pdata = (struct rt305x_esw_platform_data *) match->data;
+	}
+	if (!pdata)
+		return -EINVAL;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "no memory resource found\n");
+		return -ENOMEM;
+	}
+
+	irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!irq) {
+		dev_err(&pdev->dev, "no irq resource found\n");
+		return -ENOMEM;
+	}
+
+	esw = kzalloc(sizeof(struct rt305x_esw), GFP_KERNEL);
+	if (!esw) {
+		dev_err(&pdev->dev, "no memory for private data\n");
+		return -ENOMEM;
+	}
+
+	esw->dev = &pdev->dev;
+	esw->irq = irq->start;
+	esw->base = ioremap(res->start, resource_size(res));
+	if (!esw->base) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		err = -ENOMEM;
+		goto free_esw;
+	}
+
+	port_map = of_get_property(np, "ralink,portmap", NULL);
+        if (port_map)
+		esw->port_map = be32_to_cpu(*port_map);
+
+	reg_init = of_get_property(np, "ralink,fct2", NULL);
+        if (reg_init)
+		esw->reg_initval_fct2 = be32_to_cpu(*reg_init);
+
+	reg_init = of_get_property(np, "ralink,fpa2", NULL);
+        if (reg_init)
+		esw->reg_initval_fpa2 = be32_to_cpu(*reg_init);
+
+	reg_init = of_get_property(np, "ralink,led_polarity", NULL);
+        if (reg_init)
+		esw->reg_led_polarity = be32_to_cpu(*reg_init);
+
+	swdev = &esw->swdev;
+	swdev->of_node = pdev->dev.of_node;
+	swdev->name = "rt305x-esw";
+	swdev->alias = "rt305x";
+	swdev->cpu_port = RT305X_ESW_PORT6;
+	swdev->ports = RT305X_ESW_NUM_PORTS;
+	swdev->vlans = RT305X_ESW_NUM_VIDS;
+	swdev->ops = &esw_ops;
+
+	err = register_switch(swdev, NULL);
+	if (err < 0) {
+		dev_err(&pdev->dev, "register_switch failed\n");
+		goto unmap_base;
+	}
+
+	platform_set_drvdata(pdev, esw);
+
+	esw->pdata = pdata;
+	spin_lock_init(&esw->reg_rw_lock);
+
+	esw_hw_init(esw);
+
+	esw_w32(esw, RT305X_ESW_PORT_ST_CHG, RT305X_ESW_REG_ISR);
+	esw_w32(esw, ~RT305X_ESW_PORT_ST_CHG, RT305X_ESW_REG_IMR);
+	request_irq(esw->irq, esw_interrupt, 0, "esw", esw);
+
+	return 0;
+
+unmap_base:
+	iounmap(esw->base);
+free_esw:
+	kfree(esw);
+	return err;
+}
+
+static int esw_remove(struct platform_device *pdev)
+{
+	struct rt305x_esw *esw;
+
+	esw = platform_get_drvdata(pdev);
+	if (esw) {
+		unregister_switch(&esw->swdev);
+		platform_set_drvdata(pdev, NULL);
+		iounmap(esw->base);
+		kfree(esw);
+	}
+
+	return 0;
+}
+
+static struct platform_driver esw_driver = {
+	.probe = esw_probe,
+	.remove = esw_remove,
+	.driver = {
+		.name = "rt305x-esw",
+		.owner = THIS_MODULE,
+		.of_match_table = ralink_esw_match,
+	},
+};
+
+int __init rtesw_init(void)
+{
+	return platform_driver_register(&esw_driver);
+}
+
+void rtesw_exit(void)
+{
+	platform_driver_unregister(&esw_driver);
+}
--- /dev/null
+++ b/drivers/net/ethernet/ralink/esw_rt3052.h
@@ -0,0 +1,32 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#ifndef _RALINK_ESW_RT3052_H__
+#define _RALINK_ESW_RT3052_H__
+
+#ifdef CONFIG_NET_RALINK_ESW_RT3052
+
+int __init rtesw_init(void);
+void rtesw_exit(void);
+
+#else
+
+static inline int __init rtesw_init(void) { return 0; }
+static inline void rtesw_exit(void) { }
+
+#endif
+#endif
--- /dev/null
+++ b/drivers/net/ethernet/ralink/gsw_mt7620a.c
@@ -0,0 +1,1027 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#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/of_irq.h>
+#include <linux/of_address.h>
+#include <linux/switch.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+
+#include "ralink_soc_eth.h"
+
+#include <linux/ioport.h>
+#include <linux/switch.h>
+#include <linux/mii.h>
+
+#include <ralink_regs.h>
+#include <asm/mach-ralink/mt7620.h>
+
+#include "ralink_soc_eth.h"
+#include "gsw_mt7620a.h"
+#include "mdio.h"
+
+#define GSW_REG_PHY_TIMEOUT	(5 * HZ)
+
+#define MT7620A_GSW_REG_PIAC	0x7004
+
+#define GSW_NUM_VLANS		16
+#define GSW_NUM_VIDS		4096
+#define GSW_NUM_PORTS		7
+#define GSW_PORT6		6
+
+#define GSW_MDIO_ACCESS		BIT(31)
+#define GSW_MDIO_READ		BIT(19)
+#define GSW_MDIO_WRITE		BIT(18)
+#define GSW_MDIO_START		BIT(16)
+#define GSW_MDIO_ADDR_SHIFT	20
+#define GSW_MDIO_REG_SHIFT	25
+
+#define GSW_REG_PORT_PMCR(x)	(0x3000 + (x * 0x100))
+#define GSW_REG_PORT_STATUS(x)	(0x3008 + (x * 0x100))
+#define GSW_REG_SMACCR0		0x3fE4
+#define GSW_REG_SMACCR1		0x3fE8
+#define GSW_REG_CKGCR		0x3ff0
+
+#define GSW_REG_IMR		0x7008
+#define GSW_REG_ISR		0x700c
+
+#define SYSC_REG_CFG1		0x14
+
+#define PORT_IRQ_ST_CHG		0x7f
+
+#define GSW_VLAN_VTCR		0x90
+#define GSW_VLAN_VTCR_VID_M	0xfff
+#define GSW_VLAN_ID(_x)		(0x100 + (4 * (_x)))
+#define GSW_VLAN_ID_VID_S	12
+#define GSW_VLAN_ID_VID_M	0xfff
+
+#define GSW_VAWD1		0x94
+#define GSW_VAWD1_VTAG_EN	BIT(28)
+#define GSW_VAWD1_PORTM_S	16
+#define GSW_VAWD1_PORTM_M	0xff
+
+#define GSW_VAWD2		0x98
+#define GSW_VAWD2_PORTT_S	16
+#define GSW_VAWD2_PORTT_M	0xff
+
+#define GSW_VTIM(_x)		(0x100 + (4 * (_x)))
+#define GSW_VTIM_M		0xfff
+#define GSW_VTIM_S		12
+
+#define GSW_REG_PCR(x)		(0x2004 + (x * 0x100))
+#define GSW_REG_PCR_EG_TAG_S	28
+#define GSW_REG_PCR_EG_TAG_M	0x3
+
+#define SYSCFG1			0x14
+
+#define ESW_PHY_POLLING		0x7000
+
+#define	PMCR_IPG		BIT(18)
+#define	PMCR_MAC_MODE		BIT(16)
+#define	PMCR_FORCE		BIT(15)
+#define	PMCR_TX_EN		BIT(14)
+#define	PMCR_RX_EN		BIT(13)
+#define	PMCR_BACKOFF		BIT(9)
+#define	PMCR_BACKPRES		BIT(8)
+#define	PMCR_RX_FC		BIT(5)
+#define	PMCR_TX_FC		BIT(4)
+#define	PMCR_SPEED(_x)		(_x << 2)
+#define	PMCR_DUPLEX		BIT(1)
+#define	PMCR_LINK		BIT(0)
+
+#define PHY_AN_EN		BIT(31)
+#define PHY_PRE_EN		BIT(30)
+#define PMY_MDC_CONF(_x)	((_x & 0x3f) << 24)
+
+enum {
+	/* Global attributes. */
+	GSW_ATTR_ENABLE_VLAN,
+	/* Port attributes. */
+	GSW_ATTR_PORT_UNTAG,
+};
+
+enum {
+	PORT4_EPHY = 0,
+	PORT4_EXT,
+};
+
+struct gsw_port {
+	bool	disable;
+	bool	untag;
+	u16	pvid;
+};
+
+struct gsw_vlan {
+	u8	ports;
+	u16	vid;
+};
+
+struct mt7620_gsw {
+	struct device		*dev;
+	void __iomem		*base;
+	int			irq;
+
+	struct switch_dev	swdev;
+	bool			global_vlan_enable;
+	struct gsw_vlan		vlans[GSW_NUM_VLANS];
+	struct gsw_port		ports[GSW_NUM_PORTS];
+	long unsigned int	autopoll;
+	int			port4;
+};
+
+static inline void gsw_w32(struct mt7620_gsw *gsw, u32 val, unsigned reg)
+{
+	iowrite32(val, gsw->base + reg);
+}
+
+static inline u32 gsw_r32(struct mt7620_gsw *gsw, unsigned reg)
+{
+	return ioread32(gsw->base + reg);
+}
+
+static int mt7620_mii_busy_wait(struct mt7620_gsw *gsw)
+{
+	unsigned long t_start = jiffies;
+
+	while (1) {
+		if (!(gsw_r32(gsw, MT7620A_GSW_REG_PIAC) & GSW_MDIO_ACCESS))
+			return 0;
+		if (time_after(jiffies, t_start + GSW_REG_PHY_TIMEOUT)) {
+			break;
+		}
+	}
+
+	printk(KERN_ERR "mdio: MDIO timeout\n");
+	return -1;
+}
+
+static u32 _mt7620_mii_write(struct mt7620_gsw *gsw, u32 phy_addr, u32 phy_register,
+				u32 write_data)
+{
+	if (mt7620_mii_busy_wait(gsw))
+		return -1;
+
+	write_data &= 0xffff;
+
+	gsw_w32(gsw, GSW_MDIO_ACCESS | GSW_MDIO_START | GSW_MDIO_WRITE |
+		(phy_register << GSW_MDIO_REG_SHIFT) |
+		(phy_addr << GSW_MDIO_ADDR_SHIFT) | write_data,
+		MT7620A_GSW_REG_PIAC);
+
+	if (mt7620_mii_busy_wait(gsw))
+		return -1;
+
+	return 0;
+}
+
+int mt7620_mdio_write(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val)
+{
+	struct fe_priv *priv = bus->priv;
+	struct mt7620_gsw *gsw = (struct mt7620_gsw *) priv->soc->swpriv;
+
+	return _mt7620_mii_write(gsw, phy_addr, phy_reg, val);
+}
+
+int mt7620_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg)
+{
+	struct fe_priv *priv = bus->priv;
+	struct mt7620_gsw *gsw = (struct mt7620_gsw *) priv->soc->swpriv;
+	u32 d;
+
+	if (mt7620_mii_busy_wait(gsw))
+		return 0xffff;
+
+	gsw_w32(gsw, GSW_MDIO_ACCESS | GSW_MDIO_START | GSW_MDIO_READ |
+		(phy_reg << GSW_MDIO_REG_SHIFT) |
+		(phy_addr << GSW_MDIO_ADDR_SHIFT),
+		MT7620A_GSW_REG_PIAC);
+
+	if (mt7620_mii_busy_wait(gsw))
+		return 0xffff;
+
+	d = gsw_r32(gsw, MT7620A_GSW_REG_PIAC) & 0xffff;
+
+	return d;
+}
+
+static unsigned char *fe_speed_str(int speed)
+{
+	switch (speed) {
+	case 2:
+	case SPEED_1000:
+		return "1000";
+	case 1:
+	case SPEED_100:
+		return "100";
+	case 0:
+	case SPEED_10:
+		return "10";
+	}
+
+	return "? ";
+}
+
+int mt7620a_has_carrier(struct fe_priv *priv)
+{
+        struct mt7620_gsw *gsw = (struct mt7620_gsw *) priv->soc->swpriv;
+	int i;
+
+	for (i = 0; i < GSW_PORT6; i++)
+		if (gsw_r32(gsw, GSW_REG_PORT_STATUS(i)) & 0x1)
+			return 1;
+	return 0;
+}
+
+static void mt7620a_handle_carrier(struct fe_priv *priv)
+{
+	if (!priv->phy)
+		return;
+
+	if (mt7620a_has_carrier(priv))
+		netif_carrier_on(priv->netdev);
+	else
+		netif_carrier_off(priv->netdev);
+}
+
+void mt7620_mdio_link_adjust(struct fe_priv *priv, int port)
+{
+	if (priv->link[port])
+		netdev_info(priv->netdev, "port %d link up (%sMbps/%s duplex)\n",
+			port, fe_speed_str(priv->phy->speed[port]),
+			(DUPLEX_FULL == priv->phy->duplex[port]) ? "Full" : "Half");
+	else
+		netdev_info(priv->netdev, "port %d link down\n", port);
+	mt7620a_handle_carrier(priv);
+}
+
+static irqreturn_t gsw_interrupt(int irq, void *_priv)
+{
+	struct fe_priv *priv = (struct fe_priv *) _priv;
+	struct mt7620_gsw *gsw = (struct mt7620_gsw *) priv->soc->swpriv;
+	u32 status;
+	int i, max = (gsw->port4 == PORT4_EPHY) ? (4) : (3);
+
+	status = gsw_r32(gsw, GSW_REG_ISR);
+	if (status & PORT_IRQ_ST_CHG)
+		for (i = 0; i <= max; i++) {
+			u32 status = gsw_r32(gsw, GSW_REG_PORT_STATUS(i));
+			int link = status & 0x1;
+
+			if (link != priv->link[i]) {
+				if (link)
+					netdev_info(priv->netdev, "port %d link up (%sMbps/%s duplex)\n",
+							i, fe_speed_str((status >> 2) & 3),
+							(status & 0x2) ? "Full" : "Half");
+				else
+					netdev_info(priv->netdev, "port %d link down\n", i);
+			}
+
+			priv->link[i] = link;
+		}
+	mt7620a_handle_carrier(priv);
+
+	gsw_w32(gsw, status, GSW_REG_ISR);
+
+	return IRQ_HANDLED;
+}
+
+static int mt7620_is_bga(void)
+{
+	u32 bga = rt_sysc_r32(0x0c);
+
+	return (bga >> 16) & 1;
+}
+
+static void gsw_auto_poll(struct mt7620_gsw *gsw)
+{
+	int phy;
+	int lsb = -1, msb = 0;
+
+	for_each_set_bit(phy, &gsw->autopoll, 32) {
+		if (lsb < 0)
+			lsb = phy;
+		msb = phy;
+	}
+
+	gsw_w32(gsw, PHY_AN_EN | PHY_PRE_EN | PMY_MDC_CONF(5) | (msb << 8) | lsb, ESW_PHY_POLLING);
+}
+
+void mt7620_port_init(struct fe_priv *priv, struct device_node *np)
+{
+	struct mt7620_gsw *gsw = (struct mt7620_gsw *) priv->soc->swpriv;
+	const __be32 *_id = of_get_property(np, "reg", NULL);
+	int phy_mode, size, id;
+	int shift = 12;
+	u32 val, mask = 0;
+	int min = (gsw->port4 == PORT4_EPHY) ? (5) : (4);
+
+	if (!_id || (be32_to_cpu(*_id) < min) || (be32_to_cpu(*_id) > 5)) {
+		if (_id)
+			pr_err("%s: invalid port id %d\n", np->name, be32_to_cpu(*_id));
+		else
+			pr_err("%s: invalid port id\n", np->name);
+		return;
+	}
+
+	id = be32_to_cpu(*_id);
+
+	if (id == 4)
+		shift = 14;
+
+	priv->phy->phy_fixed[id] = of_get_property(np, "ralink,fixed-link", &size);
+	if (priv->phy->phy_fixed[id] && (size != (4 * sizeof(*priv->phy->phy_fixed[id])))) {
+		pr_err("%s: invalid fixed link property\n", np->name);
+		priv->phy->phy_fixed[id] = NULL;
+		return;
+	}
+
+	phy_mode = of_get_phy_mode(np);
+	switch (phy_mode) {
+	case PHY_INTERFACE_MODE_RGMII:
+		mask = 0;
+		break;
+	case PHY_INTERFACE_MODE_MII:
+		mask = 1;
+		break;
+	case PHY_INTERFACE_MODE_RMII:
+		mask = 2;
+		break;
+	default:
+		dev_err(priv->device, "port %d - invalid phy mode\n", priv->phy->speed[id]);
+		return;
+	}
+
+	priv->phy->phy_node[id] = of_parse_phandle(np, "phy-handle", 0);
+	if (!priv->phy->phy_node[id] && !priv->phy->phy_fixed[id])
+		return;
+
+	val = rt_sysc_r32(SYSCFG1);
+	val &= ~(3 << shift);
+	val |= mask << shift;
+	rt_sysc_w32(val, SYSCFG1);
+
+	if (priv->phy->phy_fixed[id]) {
+		const __be32 *link = priv->phy->phy_fixed[id];
+		int tx_fc = be32_to_cpup(link++);
+		int rx_fc = be32_to_cpup(link++);
+		u32 val = 0;
+
+		priv->phy->speed[id] = be32_to_cpup(link++);
+		priv->phy->duplex[id] = be32_to_cpup(link++);
+		priv->link[id] = 1;
+
+		switch (priv->phy->speed[id]) {
+		case SPEED_10:
+			val = 0;
+			break;
+		case SPEED_100:
+			val = 1;
+			break;
+		case SPEED_1000:
+			val = 2;
+			break;
+		default:
+			dev_err(priv->device, "invalid link speed: %d\n", priv->phy->speed[id]);
+			priv->phy->phy_fixed[id] = 0;
+			return;
+		}
+		val = PMCR_SPEED(val);
+		val |= PMCR_LINK | PMCR_BACKPRES | PMCR_BACKOFF | PMCR_RX_EN |
+			PMCR_TX_EN | PMCR_FORCE | PMCR_MAC_MODE | PMCR_IPG;
+		if (tx_fc)
+			val |= PMCR_TX_FC;
+		if (rx_fc)
+			val |= PMCR_RX_FC;
+		if (priv->phy->duplex[id])
+			val |= PMCR_DUPLEX;
+		gsw_w32(gsw, val, GSW_REG_PORT_PMCR(id));
+		dev_info(priv->device, "using fixed link parameters\n");
+		return;
+	}
+
+	if (priv->phy->phy_node[id] && priv->mii_bus->phy_map[id]) {
+		u32 val = PMCR_BACKPRES | PMCR_BACKOFF | PMCR_RX_EN |
+			PMCR_TX_EN |  PMCR_MAC_MODE | PMCR_IPG;
+
+		gsw_w32(gsw, val, GSW_REG_PORT_PMCR(id));
+		fe_connect_phy_node(priv, priv->phy->phy_node[id]);
+		gsw->autopoll |= BIT(id);
+		gsw_auto_poll(gsw);
+		return;
+	}
+}
+
+static void gsw_hw_init(struct mt7620_gsw *gsw)
+{
+	u32 is_BGA = mt7620_is_bga();
+
+	rt_sysc_w32(rt_sysc_r32(SYSC_REG_CFG1) | BIT(8), SYSC_REG_CFG1);
+	gsw_w32(gsw, gsw_r32(gsw, GSW_REG_CKGCR) & ~(0x3 << 4), GSW_REG_CKGCR);
+
+	/*correct  PHY  setting L3.0 BGA*/
+	_mt7620_mii_write(gsw, 1, 31, 0x4000); //global, page 4
+
+	_mt7620_mii_write(gsw, 1, 17, 0x7444);
+	if (is_BGA)
+		_mt7620_mii_write(gsw, 1, 19, 0x0114);
+	else
+		_mt7620_mii_write(gsw, 1, 19, 0x0117);
+
+	_mt7620_mii_write(gsw, 1, 22, 0x10cf);
+	_mt7620_mii_write(gsw, 1, 25, 0x6212);
+	_mt7620_mii_write(gsw, 1, 26, 0x0777);
+	_mt7620_mii_write(gsw, 1, 29, 0x4000);
+	_mt7620_mii_write(gsw, 1, 28, 0xc077);
+	_mt7620_mii_write(gsw, 1, 24, 0x0000);
+
+	_mt7620_mii_write(gsw, 1, 31, 0x3000); //global, page 3
+	_mt7620_mii_write(gsw, 1, 17, 0x4838);
+
+	_mt7620_mii_write(gsw, 1, 31, 0x2000); //global, page 2
+	if (is_BGA) {
+		_mt7620_mii_write(gsw, 1, 21, 0x0515);
+		_mt7620_mii_write(gsw, 1, 22, 0x0053);
+		_mt7620_mii_write(gsw, 1, 23, 0x00bf);
+		_mt7620_mii_write(gsw, 1, 24, 0x0aaf);
+		_mt7620_mii_write(gsw, 1, 25, 0x0fad);
+		_mt7620_mii_write(gsw, 1, 26, 0x0fc1);
+	} else {
+		_mt7620_mii_write(gsw, 1, 21, 0x0517);
+		_mt7620_mii_write(gsw, 1, 22, 0x0fd2);
+		_mt7620_mii_write(gsw, 1, 23, 0x00bf);
+		_mt7620_mii_write(gsw, 1, 24, 0x0aab);
+		_mt7620_mii_write(gsw, 1, 25, 0x00ae);
+		_mt7620_mii_write(gsw, 1, 26, 0x0fff);
+	}
+	_mt7620_mii_write(gsw, 1, 31, 0x1000); //global, page 1
+	_mt7620_mii_write(gsw, 1, 17, 0xe7f8);
+
+	_mt7620_mii_write(gsw, 1, 31, 0x8000); //local, page 0
+	_mt7620_mii_write(gsw, 0, 30, 0xa000);
+	_mt7620_mii_write(gsw, 1, 30, 0xa000);
+	_mt7620_mii_write(gsw, 2, 30, 0xa000);
+	_mt7620_mii_write(gsw, 3, 30, 0xa000);
+
+	_mt7620_mii_write(gsw, 0, 4, 0x05e1);
+	_mt7620_mii_write(gsw, 1, 4, 0x05e1);
+	_mt7620_mii_write(gsw, 2, 4, 0x05e1);
+	_mt7620_mii_write(gsw, 3, 4, 0x05e1);
+	_mt7620_mii_write(gsw, 1, 31, 0xa000); //local, page 2
+	_mt7620_mii_write(gsw, 0, 16, 0x1111);
+	_mt7620_mii_write(gsw, 1, 16, 0x1010);
+	_mt7620_mii_write(gsw, 2, 16, 0x1515);
+	_mt7620_mii_write(gsw, 3, 16, 0x0f0f);
+
+	/* CPU Port6 Force Link 1G, FC ON */
+	gsw_w32(gsw, 0x5e33b, GSW_REG_PORT_PMCR(6));
+	/* Set Port6 CPU Port */
+	gsw_w32(gsw, 0x7f7f7fe0, 0x0010);
+
+//	GSW_VAWD2
+
+	/* setup port 4 */
+	if (gsw->port4 == PORT4_EPHY) {
+		u32 val = rt_sysc_r32(SYSCFG1);
+		val |= 3 << 14;
+		rt_sysc_w32(val, SYSCFG1);
+		_mt7620_mii_write(gsw, 4, 30, 0xa000);
+		_mt7620_mii_write(gsw, 4, 4, 0x05e1);
+		_mt7620_mii_write(gsw, 4, 16, 0x1313);
+		pr_info("gsw: setting port4 to ephy mode\n");
+	}
+}
+
+static int gsw_reset_switch(struct switch_dev *dev)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+
+	gsw->global_vlan_enable = 0;
+	memset(gsw->ports, 0, sizeof(gsw->ports));
+	memset(gsw->vlans, 0, sizeof(gsw->vlans));
+	gsw_hw_init(gsw);
+
+	return 0;
+}
+
+static int gsw_get_vlan_enable(struct switch_dev *dev,
+			   const struct switch_attr *attr,
+			   struct switch_val *val)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+
+	val->value.i = gsw->global_vlan_enable;
+
+	return 0;
+}
+
+static int gsw_set_vlan_enable(struct switch_dev *dev,
+			   const struct switch_attr *attr,
+			   struct switch_val *val)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+
+	gsw->global_vlan_enable = val->value.i != 0;
+
+	return 0;
+}
+
+static unsigned gsw_get_pvid(struct mt7620_gsw *gsw, unsigned port)
+{
+	unsigned s, val;
+
+	s = GSW_VTIM_S * (port % 2);
+	val = gsw_r32(gsw, GSW_VTIM(port / 2));
+
+	return (val >> s) & GSW_VTIM_M;
+}
+
+static void gsw_set_pvid(struct mt7620_gsw *gsw, unsigned port, unsigned pvid)
+{
+	unsigned s, val;
+
+	s = GSW_VTIM_S * (port % 2);
+	val = gsw_r32(gsw, GSW_VTIM(port / 2));
+	val &= ~(GSW_VTIM_M << s);
+	val |= (pvid && GSW_VTIM_M) << s;
+	gsw_w32(gsw, val, GSW_VTIM(port / 2));
+}
+
+static int gsw_get_port_bool(struct switch_dev *dev,
+			 const struct switch_attr *attr,
+			 struct switch_val *val)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+	int idx = val->port_vlan;
+
+	if (idx < 0 || idx >= GSW_NUM_PORTS)
+		return -EINVAL;
+
+	switch (attr->id) {
+	case GSW_ATTR_PORT_UNTAG:
+		return gsw->ports[idx].untag;
+	}
+
+	return -EINVAL;
+}
+
+static int gsw_get_port_pvid(struct switch_dev *dev, int port, int *val)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+
+	if (port >= GSW_NUM_PORTS)
+		return -EINVAL;
+
+	*val = gsw_get_pvid(gsw, port);
+
+	return 0;
+}
+
+static int gsw_set_port_pvid(struct switch_dev *dev, int port, int val)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+
+	if (port >= GSW_NUM_PORTS)
+		return -EINVAL;
+
+	gsw->ports[port].pvid = val;
+
+	return 0;
+}
+
+static void gsw_set_vtcr(struct switch_dev *dev, u32 vid)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+	int retry = 1000;
+
+	gsw_w32(gsw, 0x80000000 | (BIT(vid) & GSW_VLAN_VTCR_VID_M), GSW_VLAN_VTCR);
+	while (retry-- && (gsw_r32(gsw, GSW_VLAN_VTCR) & 0x80000000))
+		;
+}
+
+static void gsw_apply_vtcr(struct switch_dev *dev, u32 vid)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+	int retry = 1000;
+
+	gsw_w32(gsw, 0x80001000 | (BIT(vid) & GSW_VLAN_VTCR_VID_M), GSW_VLAN_VTCR);
+	while (retry-- && (gsw_r32(gsw, GSW_VLAN_VTCR) & 0x80000000))
+		;
+}
+
+static unsigned gsw_get_vlan_id(struct mt7620_gsw *gsw, unsigned vlan)
+{
+	unsigned s;
+	unsigned val;
+
+	s = GSW_VLAN_ID_VID_S * (vlan % 2);
+	val = gsw_r32(gsw, GSW_VLAN_ID(vlan / 2));
+	val = (val >> s) & GSW_VLAN_ID_VID_M;
+
+	return val;
+}
+
+static void gsw_set_vlan_id(struct mt7620_gsw *gsw, unsigned vlan, unsigned vid)
+{
+	unsigned s;
+	unsigned val;
+
+	s = GSW_VLAN_ID_VID_S * (vlan % 2);
+	val = gsw_r32(gsw, GSW_VLAN_ID(vlan / 2));
+	val &= ~(GSW_VLAN_ID_VID_M << s);
+	val |= (vid << s);
+	gsw_w32(gsw, val, GSW_VLAN_ID(vlan / 2));
+}
+
+static void gsw_vlan_tagging_enable(struct mt7620_gsw *gsw, unsigned vlan, unsigned enable)
+{
+	unsigned val;
+
+	val = gsw_r32(gsw, GSW_VAWD1);
+	if (enable)
+		val |= GSW_VAWD1_VTAG_EN;
+	else
+		val &= ~GSW_VAWD1_VTAG_EN;
+	gsw_w32(gsw, val, GSW_VAWD1);
+}
+
+static unsigned gsw_get_port_member(struct mt7620_gsw *gsw, unsigned vlan)
+{
+	unsigned val;
+
+	gsw_set_vtcr(&gsw->swdev, vlan);
+
+	val = gsw_r32(gsw, GSW_VAWD1);
+	val = (val >> GSW_VAWD1_PORTM_S) & GSW_VAWD1_PORTM_M;
+
+	return val;
+}
+
+static void gsw_set_port_member(struct mt7620_gsw *gsw, unsigned vlan, unsigned member)
+{
+	unsigned val;
+
+	val = gsw_r32(gsw, GSW_VAWD1);
+	val = ~(GSW_VAWD1_PORTM_M << GSW_VAWD1_PORTM_S);
+	val |= (member & GSW_VAWD1_PORTM_M) << GSW_VAWD1_PORTM_S;
+        gsw_w32(gsw, val, GSW_VAWD1);
+}
+
+static unsigned gsw_get_port_tag(struct mt7620_gsw *gsw, unsigned port)
+{
+	unsigned val;
+
+	val = gsw_r32(gsw, GSW_REG_PCR(port));
+	val >>= GSW_REG_PCR_EG_TAG_S;
+	val &= GSW_REG_PCR_EG_TAG_M;
+
+	return !!val;
+}
+
+static void gsw_set_port_untag(struct mt7620_gsw *gsw, unsigned port, unsigned untag)
+{
+	unsigned val;
+
+	val = gsw_r32(gsw, GSW_REG_PCR(port));
+	if (!untag)
+		untag = 0x2;
+	else
+		untag = 0;
+	val &= ~(GSW_REG_PCR_EG_TAG_M << GSW_REG_PCR_EG_TAG_S);
+	val |= (untag & GSW_REG_PCR_EG_TAG_M) << GSW_REG_PCR_EG_TAG_S;
+	gsw_w32(gsw, val, GSW_REG_PCR(port));
+}
+
+static int gsw_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+	int vlan_idx = -1;
+	u32 member;
+	int i;
+
+	val->len = 0;
+
+	if (val->port_vlan < 0 || val->port_vlan >= GSW_NUM_VIDS)
+		return -EINVAL;
+
+	/* valid vlan? */
+	for (i = 0; i < GSW_NUM_VLANS; i++) {
+		if (gsw_get_vlan_id(gsw, i) != val->port_vlan)
+			continue;
+		member = gsw_get_port_member(gsw, i);
+		vlan_idx = i;
+		break;
+	}
+
+	if (vlan_idx == -1)
+		return -EINVAL;
+
+	for (i = 0; i < GSW_NUM_PORTS; i++) {
+		struct switch_port *p;
+		int port_mask = 1 << i;
+
+		if (!(member & port_mask))
+			continue;
+
+		p = &val->value.ports[val->len++];
+		p->id = i;
+		if (gsw_get_port_tag(gsw, i))
+			p->flags = 1 << SWITCH_PORT_FLAG_TAGGED;
+		else
+			p->flags = 0;
+	}
+
+	return 0;
+}
+
+static int gsw_set_vlan_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+	int ports;
+	int vlan_idx = -1;
+	int i;
+
+	if (val->port_vlan < 0 || val->port_vlan >= GSW_NUM_VIDS ||
+			val->len > GSW_NUM_PORTS)
+		return -EINVAL;
+
+	/* one of the already defined vlans? */
+	for (i = 0; i < GSW_NUM_VLANS; i++) {
+		if (gsw->vlans[i].vid == val->port_vlan &&
+		    gsw->vlans[i].ports) {
+			vlan_idx = i;
+			break;
+		}
+	}
+
+	/* select a free slot */
+	for (i = 0; vlan_idx == -1 && i < GSW_NUM_VLANS; i++) {
+		if (!gsw->vlans[i].ports)
+			vlan_idx = i;
+	}
+
+	/* bail if all slots are in use */
+	if (vlan_idx == -1)
+		return -EINVAL;
+
+	ports = 0;
+	for (i = 0; i < val->len; i++) {
+		struct switch_port *p = &val->value.ports[i];
+		int port_mask = 1 << p->id;
+		bool untagged = !(p->flags & (1 << SWITCH_PORT_FLAG_TAGGED));
+
+		if (p->id >= GSW_NUM_PORTS)
+			return -EINVAL;
+
+		ports |= port_mask;
+		gsw->ports[p->id].untag = untagged;
+	}
+	gsw->vlans[vlan_idx].ports = ports;
+	if (!ports)
+		gsw->vlans[vlan_idx].vid = 0xfff;
+	else
+		gsw->vlans[vlan_idx].vid = val->port_vlan;
+
+	return 0;
+}
+
+static int gsw_apply_config(struct switch_dev *dev)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+	int i;
+
+	for (i = 0; i < GSW_NUM_VLANS; i++) {
+		gsw_set_vtcr(&gsw->swdev, i);
+		if (gsw->global_vlan_enable) {
+			gsw_set_vlan_id(gsw, i, gsw->vlans[i].vid);
+			gsw_set_port_member(gsw, i, gsw->vlans[i].ports);
+			gsw_vlan_tagging_enable(gsw, i, 1);
+		} else {
+			gsw_set_vlan_id(gsw, i, 0xfff);
+			gsw_set_port_member(gsw, i, 0);
+			gsw_vlan_tagging_enable(gsw, i, 0);
+		}
+		gsw_apply_vtcr(&gsw->swdev, i);
+	}
+
+	for (i = 0; i < GSW_NUM_PORTS; i++) {
+		if (gsw->global_vlan_enable) {
+			gsw_set_port_untag(gsw, i, !gsw->ports[i].untag);
+			gsw_set_pvid(gsw, i, gsw->ports[i].pvid);
+		} else {
+			gsw_set_port_untag(gsw, i, 0);
+			gsw_set_pvid(gsw, i, 0);
+		}
+	}
+
+	if (!gsw->global_vlan_enable)
+		gsw_set_vlan_id(gsw, 0, 0);
+
+	return 0;
+}
+
+static int gsw_get_port_link(struct switch_dev *dev,
+			 int port,
+			 struct switch_port_link *link)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+	u32 status;
+
+	if (port < 0 || port >= GSW_NUM_PORTS)
+		return -EINVAL;
+
+	status = gsw_r32(gsw, GSW_REG_PORT_STATUS(port));
+	link->link = status & 0x1;
+	link->duplex = (status >> 1) & 1;
+
+	switch ((status >> 2) & 0x3) {
+	case 0:
+		link->speed = SWITCH_PORT_SPEED_10;
+		break;
+	case 1:
+		link->speed = SWITCH_PORT_SPEED_100;
+		break;
+	case 2:
+	case 3: // forced gige speed can be 2 or 3
+		link->speed = SWITCH_PORT_SPEED_1000;
+		break;
+	}
+
+	return 0;
+}
+
+static int gsw_set_port_bool(struct switch_dev *dev,
+			 const struct switch_attr *attr,
+			 struct switch_val *val)
+{
+	struct mt7620_gsw *gsw = container_of(dev, struct mt7620_gsw, swdev);
+	int idx = val->port_vlan;
+
+	if (idx < 0 || idx >= GSW_NUM_PORTS ||
+	    val->value.i < 0 || val->value.i > 1)
+		return -EINVAL;
+
+	switch (attr->id) {
+	case GSW_ATTR_PORT_UNTAG:
+		gsw->ports[idx].untag = val->value.i;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct switch_attr gsw_global[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_vlan",
+		.description = "VLAN mode (1:enabled)",
+		.max = 1,
+		.id = GSW_ATTR_ENABLE_VLAN,
+		.get = gsw_get_vlan_enable,
+		.set = gsw_set_vlan_enable,
+	},
+};
+
+static const struct switch_attr gsw_port[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "untag",
+		.description = "Untag (1:strip outgoing vlan tag)",
+		.max = 1,
+		.id = GSW_ATTR_PORT_UNTAG,
+		.get = gsw_get_port_bool,
+		.set = gsw_set_port_bool,
+	},
+};
+
+static const struct switch_attr gsw_vlan[] = {
+};
+
+static const struct switch_dev_ops gsw_ops = {
+	.attr_global = {
+		.attr = gsw_global,
+		.n_attr = ARRAY_SIZE(gsw_global),
+	},
+	.attr_port = {
+		.attr = gsw_port,
+		.n_attr = ARRAY_SIZE(gsw_port),
+	},
+	.attr_vlan = {
+		.attr = gsw_vlan,
+		.n_attr = ARRAY_SIZE(gsw_vlan),
+	},
+	.get_vlan_ports = gsw_get_vlan_ports,
+	.set_vlan_ports = gsw_set_vlan_ports,
+	.get_port_pvid = gsw_get_port_pvid,
+	.set_port_pvid = gsw_set_port_pvid,
+	.get_port_link = gsw_get_port_link,
+	.apply_config = gsw_apply_config,
+	.reset_switch = gsw_reset_switch,
+};
+
+void mt7620_set_mac(struct fe_priv *priv, unsigned char *mac)
+{
+	struct mt7620_gsw *gsw = (struct mt7620_gsw *) priv->soc->swpriv;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->page_lock, flags);
+	gsw_w32(gsw, (mac[0] << 8) | mac[1], GSW_REG_SMACCR1);
+	gsw_w32(gsw, (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5],
+		GSW_REG_SMACCR0);
+	spin_unlock_irqrestore(&priv->page_lock, flags);
+}
+
+static struct of_device_id gsw_match[] = {
+	{ .compatible = "ralink,mt7620a-gsw" },
+	{}
+};
+
+int mt7620_gsw_probe(struct fe_priv *priv)
+{
+	struct mt7620_gsw *gsw;
+	struct device_node *np;
+	struct switch_dev *swdev;
+	const char *port4 = NULL;
+
+	np = of_find_matching_node(NULL, gsw_match);
+	if (!np) {
+		dev_err(priv->device, "no gsw node found\n");
+		return -EINVAL;
+	}
+	np = of_node_get(np);
+
+	gsw = devm_kzalloc(priv->device, sizeof(struct mt7620_gsw), GFP_KERNEL);
+	if (!gsw) {
+		dev_err(priv->device, "no gsw memory for private data\n");
+		return -ENOMEM;
+	}
+
+	gsw->irq = irq_of_parse_and_map(np, 0);
+	if (!gsw->irq) {
+		dev_err(priv->device, "no gsw irq resource found\n");
+		return -ENOMEM;
+	}
+
+	gsw->base = of_iomap(np, 0);
+	if (!gsw->base) {
+		dev_err(priv->device, "gsw ioremap failed\n");
+	}
+
+	gsw->dev = priv->device;
+	priv->soc->swpriv = gsw;
+
+	swdev = &gsw->swdev;
+	swdev->of_node = np;
+	swdev->name = "mt7620a-gsw";
+	swdev->alias = "mt7620x";
+	swdev->cpu_port = GSW_PORT6;
+	swdev->ports = GSW_NUM_PORTS;
+	swdev->vlans = GSW_NUM_VLANS;
+	swdev->ops = &gsw_ops;
+
+	if (register_switch(swdev, NULL))
+		dev_err(priv->device, "register_switch failed\n");
+
+	of_property_read_string(np, "ralink,port4", &port4);
+	if (port4 && !strcmp(port4, "ephy"))
+		gsw->port4 = PORT4_EPHY;
+	else if (port4 && !strcmp(port4, "gmac"))
+		gsw->port4 = PORT4_EXT;
+	else
+		WARN_ON(port4);
+
+	gsw_hw_init(gsw);
+
+	gsw_w32(gsw, ~PORT_IRQ_ST_CHG, GSW_REG_IMR);
+	request_irq(gsw->irq, gsw_interrupt, 0, "gsw", priv);
+
+	return 0;
+}
--- /dev/null
+++ b/drivers/net/ethernet/ralink/gsw_mt7620a.h
@@ -0,0 +1,29 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#ifndef _RALINK_GSW_MT7620_H__
+#define _RALINK_GSW_MT7620_H__
+
+extern int mt7620_gsw_probe(struct fe_priv *priv);
+extern void mt7620_set_mac(struct fe_priv *priv, unsigned char *mac);
+extern int mt7620_mdio_write(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val);
+extern int mt7620_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg);
+extern void mt7620_mdio_link_adjust(struct fe_priv *priv, int port);
+extern void mt7620_port_init(struct fe_priv *priv, struct device_node *np);
+extern int mt7620a_has_carrier(struct fe_priv *priv);
+
+#endif
--- /dev/null
+++ b/drivers/net/ethernet/ralink/mdio.c
@@ -0,0 +1,245 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#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;
+			}
+		}
+	}
+	spin_unlock_irqrestore(&priv->phy->lock, flags);
+}
+
+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) >= 8)) {
+		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 int fe_phy_connect(struct fe_priv *priv)
+{
+	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]);
+		}
+}
+
+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 == NULL) {
+		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->irq = priv->mii_irq;
+	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);
+}
--- /dev/null
+++ b/drivers/net/ethernet/ralink/mdio.h
@@ -0,0 +1,29 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#ifndef _RALINK_MDIO_H__
+#define _RALINK_MDIO_H__
+
+#ifdef CONFIG_NET_RALINK_MDIO
+extern int fe_mdio_init(struct fe_priv *priv);
+extern void fe_mdio_cleanup(struct fe_priv *priv);
+extern 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
--- /dev/null
+++ b/drivers/net/ethernet/ralink/mdio_rt2880.c
@@ -0,0 +1,232 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#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_rt2880.h"
+#include "mdio.h"
+
+#define FE_MDIO_RETRY	1000
+
+static unsigned char *rt2880_speed_str(struct fe_priv *priv)
+{
+	switch (priv->phy->speed[0]) {
+	case SPEED_1000:
+		return "1000";
+	case SPEED_100:
+		return "100";
+	case SPEED_10:
+		return "10";
+	}
+
+	return "?";
+}
+
+void rt2880_mdio_link_adjust(struct fe_priv *priv, int port)
+{
+	u32 mdio_cfg;
+
+	if (!priv->link[0]) {
+		netif_carrier_off(priv->netdev);
+		netdev_info(priv->netdev, "link down\n");
+		return;
+	}
+
+	mdio_cfg = FE_MDIO_CFG_TX_CLK_SKEW_200 |
+		   FE_MDIO_CFG_RX_CLK_SKEW_200 |
+		   FE_MDIO_CFG_GP1_FRC_EN;
+
+	if (priv->phy->duplex[0] == DUPLEX_FULL)
+		mdio_cfg |= FE_MDIO_CFG_GP1_DUPLEX;
+
+	if (priv->phy->tx_fc[0])
+		mdio_cfg |= FE_MDIO_CFG_GP1_FC_TX;
+
+	if (priv->phy->rx_fc[0])
+		mdio_cfg |= FE_MDIO_CFG_GP1_FC_RX;
+
+	switch (priv->phy->speed[0]) {
+	case SPEED_10:
+		mdio_cfg |= FE_MDIO_CFG_GP1_SPEED_10;
+		break;
+	case SPEED_100:
+		mdio_cfg |= FE_MDIO_CFG_GP1_SPEED_100;
+		break;
+	case SPEED_1000:
+		mdio_cfg |= FE_MDIO_CFG_GP1_SPEED_1000;
+		break;
+	default:
+		BUG();
+	}
+
+	fe_w32(mdio_cfg, FE_MDIO_CFG);
+
+	netif_carrier_on(priv->netdev);
+	netdev_info(priv->netdev, "link up (%sMbps/%s duplex)\n",
+		    rt2880_speed_str(priv),
+		    (DUPLEX_FULL == priv->phy->duplex[0]) ? "Full" : "Half");
+}
+
+static int rt2880_mdio_wait_ready(struct fe_priv *priv)
+{
+	int retries;
+
+	retries = FE_MDIO_RETRY;
+	while (1) {
+		u32 t;
+
+		t = fe_r32(FE_MDIO_ACCESS);
+		if ((t & (0x1 << 31)) == 0)
+			return 0;
+
+		if (retries-- == 0)
+			break;
+
+		udelay(1);
+	}
+
+	dev_err(priv->device, "MDIO operation timed out\n");
+	return -ETIMEDOUT;
+}
+
+int rt2880_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg)
+{
+	struct fe_priv *priv = bus->priv;
+	int err;
+	u32 t;
+
+	err = rt2880_mdio_wait_ready(priv);
+	if (err)
+		return 0xffff;
+
+	t = (phy_addr << 24) | (phy_reg << 16);
+	fe_w32(t, FE_MDIO_ACCESS);
+	t |= (1 << 31);
+	fe_w32(t, FE_MDIO_ACCESS);
+
+	err = rt2880_mdio_wait_ready(priv);
+	if (err)
+		return 0xffff;
+
+	pr_info("%s: addr=%04x, reg=%04x, value=%04x\n", __func__,
+		phy_addr, phy_reg, fe_r32(FE_MDIO_ACCESS) & 0xffff);
+
+	return fe_r32(FE_MDIO_ACCESS) & 0xffff;
+}
+
+int rt2880_mdio_write(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val)
+{
+	struct fe_priv *priv = bus->priv;
+	int err;
+	u32 t;
+
+	pr_info("%s: addr=%04x, reg=%04x, value=%04x\n", __func__,
+		phy_addr, phy_reg, fe_r32(FE_MDIO_ACCESS) & 0xffff);
+
+	err = rt2880_mdio_wait_ready(priv);
+	if (err)
+		return err;
+
+	t = (1 << 30) | (phy_addr << 24) | (phy_reg << 16) | val;
+	fe_w32(t, FE_MDIO_ACCESS);
+	t |= (1 << 31);
+	fe_w32(t, FE_MDIO_ACCESS);
+
+	return rt2880_mdio_wait_ready(priv);
+}
+
+void rt2880_port_init(struct fe_priv *priv, struct device_node *np)
+{
+	const __be32 *id = of_get_property(np, "reg", NULL);
+	const __be32 *link;
+	int size;
+	int phy_mode;
+
+	if (!id || (be32_to_cpu(*id) != 0)) {
+		pr_err("%s: invalid port id\n", np->name);
+		return;
+	}
+
+	priv->phy->phy_fixed[0] = of_get_property(np, "ralink,fixed-link", &size);
+	if (priv->phy->phy_fixed[0] && (size != (4 * sizeof(*priv->phy->phy_fixed[0])))) {
+		pr_err("%s: invalid fixed link property\n", np->name);
+		priv->phy->phy_fixed[0] = NULL;
+		return;
+	}
+
+	phy_mode = of_get_phy_mode(np);
+	switch (phy_mode) {
+	case PHY_INTERFACE_MODE_RGMII:
+		break;
+	case PHY_INTERFACE_MODE_MII:
+		break;
+	case PHY_INTERFACE_MODE_RMII:
+		break;
+	default:
+		if (!priv->phy->phy_fixed[0])
+			dev_err(priv->device, "port %d - invalid phy mode\n", priv->phy->speed[0]);
+		break;
+	}
+
+	priv->phy->phy_node[0] = of_parse_phandle(np, "phy-handle", 0);
+	if (!priv->phy->phy_node[0] && !priv->phy->phy_fixed[0])
+		return;
+
+	if (priv->phy->phy_fixed[0]) {
+		link = priv->phy->phy_fixed[0];
+		priv->phy->speed[0] = be32_to_cpup(link++);
+		priv->phy->duplex[0] = be32_to_cpup(link++);
+		priv->phy->tx_fc[0] = be32_to_cpup(link++);
+		priv->phy->rx_fc[0] = be32_to_cpup(link++);
+
+		priv->link[0] = 1;
+		switch (priv->phy->speed[0]) {
+		case SPEED_10:
+			break;
+		case SPEED_100:
+			break;
+		case SPEED_1000:
+			break;
+		default:
+			dev_err(priv->device, "invalid link speed: %d\n", priv->phy->speed[0]);
+			priv->phy->phy_fixed[0] = 0;
+			return;
+		}
+		dev_info(priv->device, "using fixed link parameters\n");
+		rt2880_mdio_link_adjust(priv, 0);
+		return;
+	}
+	if (priv->phy->phy_node[0] && priv->mii_bus->phy_map[0]) {
+		fe_connect_phy_node(priv, priv->phy->phy_node[0]);
+	}
+
+	return;
+}
--- /dev/null
+++ b/drivers/net/ethernet/ralink/mdio_rt2880.h
@@ -0,0 +1,26 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#ifndef _RALINK_MDIO_RT2880_H__
+#define _RALINK_MDIO_RT2880_H__
+
+void rt2880_mdio_link_adjust(struct fe_priv *priv, int port);
+int rt2880_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg);
+int rt2880_mdio_write(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val);
+void rt2880_port_init(struct fe_priv *priv, struct device_node *np);
+
+#endif
--- /dev/null
+++ b/drivers/net/ethernet/ralink/ralink_soc_eth.c
@@ -0,0 +1,735 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#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 <asm/mach-ralink/ralink_regs.h>
+
+#include "ralink_soc_eth.h"
+#include "esw_rt3052.h"
+#include "mdio.h"
+
+#define TX_TIMEOUT		(20 * HZ / 100)
+#define	MAX_RX_LENGTH		1536
+
+static const u32 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_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_FE_INT_ENABLE] = FE_FE_INT_ENABLE,
+	[FE_REG_FE_INT_STATUS] = FE_FE_INT_STATUS,
+};
+
+static const u32 *fe_reg_table = fe_reg_table_default;
+
+static void __iomem *fe_base = 0;
+
+void fe_w32(u32 val, unsigned reg)
+{
+	__raw_writel(val, fe_base + reg);
+}
+
+u32 fe_r32(unsigned reg)
+{
+	return __raw_readl(fe_base + reg);
+}
+
+static inline void fe_reg_w32(u32 val, enum fe_reg reg)
+{
+	fe_w32(val, fe_reg_table[reg]);
+}
+
+static inline u32 fe_reg_r32(enum fe_reg reg)
+{
+	return fe_r32(fe_reg_table[reg]);
+}
+
+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 struct sk_buff* fe_alloc_skb(struct fe_priv *priv)
+{
+	struct sk_buff *skb;
+
+	skb = netdev_alloc_skb(priv->netdev, MAX_RX_LENGTH + NET_IP_ALIGN);
+	if (!skb)
+		return NULL;
+
+	skb_reserve(skb, NET_IP_ALIGN);
+
+	return skb;
+}
+
+static int fe_alloc_rx(struct fe_priv *priv)
+{
+	int size = NUM_DMA_DESC * sizeof(struct fe_rx_dma);
+	int i;
+
+	priv->rx_dma = dma_alloc_coherent(&priv->netdev->dev, size,
+					&priv->rx_phys, GFP_ATOMIC);
+	if (!priv->rx_dma)
+		return -ENOMEM;
+
+	memset(priv->rx_dma, 0, size);
+
+	for (i = 0; i < NUM_DMA_DESC; i++) {
+		priv->rx_skb[i] = fe_alloc_skb(priv);
+		if (!priv->rx_skb[i])
+			return -ENOMEM;
+	}
+
+	for (i = 0; i < NUM_DMA_DESC; i++) {
+		dma_addr_t dma_addr = dma_map_single(&priv->netdev->dev,
+						priv->rx_skb[i]->data,
+						MAX_RX_LENGTH,
+						DMA_FROM_DEVICE);
+		priv->rx_dma[i].rxd1 = (unsigned int) dma_addr;
+
+		if (priv->soc->rx_dma)
+			priv->soc->rx_dma(priv, i, MAX_RX_LENGTH);
+		else
+			priv->rx_dma[i].rxd2 = RX_DMA_LSO;
+	}
+	wmb();
+
+	fe_reg_w32(priv->rx_phys, FE_REG_RX_BASE_PTR0);
+	fe_reg_w32(NUM_DMA_DESC, FE_REG_RX_MAX_CNT0);
+	fe_reg_w32((NUM_DMA_DESC - 1), FE_REG_RX_CALC_IDX0);
+	fe_reg_w32(FE_PST_DRX_IDX0, FE_REG_PDMA_RST_CFG);
+
+	return 0;
+}
+
+static int fe_alloc_tx(struct fe_priv *priv)
+{
+	int size = NUM_DMA_DESC * sizeof(struct fe_tx_dma);
+	int i;
+
+	priv->tx_free_idx = 0;
+
+	priv->tx_dma = dma_alloc_coherent(&priv->netdev->dev, size,
+					&priv->tx_phys, GFP_ATOMIC);
+	if (!priv->tx_dma)
+		return -ENOMEM;
+
+	memset(priv->tx_dma, 0, size);
+
+	for (i = 0; i < NUM_DMA_DESC; i++) {
+		if (priv->soc->tx_dma) {
+			priv->soc->tx_dma(priv, i, 0);
+			continue;
+		}
+
+		priv->tx_dma[i].txd2 = TX_DMA_LSO | TX_DMA_DONE;
+		priv->tx_dma[i].txd4 = TX_DMA_QN(3) | TX_DMA_PN(1);
+	}
+
+	fe_reg_w32(priv->tx_phys, FE_REG_TX_BASE_PTR0);
+	fe_reg_w32(NUM_DMA_DESC, 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;
+}
+
+static void fe_free_dma(struct fe_priv *priv)
+{
+	int i;
+
+	for (i = 0; i < NUM_DMA_DESC; i++) {
+		if (priv->rx_skb[i]) {
+			dma_unmap_single(&priv->netdev->dev, priv->rx_dma[i].rxd1,
+						MAX_RX_LENGTH, DMA_FROM_DEVICE);
+			dev_kfree_skb_any(priv->rx_skb[i]);
+			priv->rx_skb[i] = NULL;
+		}
+
+		if (priv->tx_skb[i]) {
+			dev_kfree_skb_any(priv->tx_skb[i]);
+			priv->tx_skb[i] = NULL;
+		}
+	}
+
+	if (priv->rx_dma) {
+		int size = NUM_DMA_DESC * sizeof(struct fe_rx_dma);
+		dma_free_coherent(&priv->netdev->dev, size, priv->rx_dma,
+					priv->rx_phys);
+	}
+
+	if (priv->tx_dma) {
+		int size = NUM_DMA_DESC * sizeof(struct fe_tx_dma);
+		dma_free_coherent(&priv->netdev->dev, size, priv->tx_dma,
+					priv->tx_phys);
+	}
+
+	netdev_reset_queue(priv->netdev);
+}
+
+static int fe_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	dma_addr_t mapped_addr;
+	u32 tx_next;
+	u32 tx;
+
+	if (priv->soc->min_pkt_len) {
+		if (skb->len < priv->soc->min_pkt_len) {
+			if (skb_padto(skb, priv->soc->min_pkt_len)) {
+				printk(KERN_ERR
+				       "fe_eth: skb_padto failed\n");
+				kfree_skb(skb);
+				return 0;
+			}
+			skb_put(skb, priv->soc->min_pkt_len - skb->len);
+		}
+	}
+
+	dev->trans_start = jiffies;
+	mapped_addr = dma_map_single(&priv->netdev->dev, skb->data,
+				skb->len, DMA_TO_DEVICE);
+
+	spin_lock(&priv->page_lock);
+
+	tx = fe_reg_r32(FE_REG_TX_CTX_IDX0);
+	tx_next = (tx + 1) % NUM_DMA_DESC;
+
+	if ((priv->tx_skb[tx]) || (priv->tx_skb[tx_next]) ||
+			!(priv->tx_dma[tx].txd2 & TX_DMA_DONE) ||
+			!(priv->tx_dma[tx_next].txd2 & TX_DMA_DONE))
+	{
+		spin_unlock(&priv->page_lock);
+		dev->stats.tx_dropped++;
+		kfree_skb(skb);
+
+		return NETDEV_TX_OK;
+	}
+
+	priv->tx_skb[tx] = skb;
+	priv->tx_dma[tx].txd1 = (unsigned int) mapped_addr;
+	wmb();
+	if (priv->soc->tx_dma)
+		priv->soc->tx_dma(priv, tx, skb->len);
+	else
+		priv->tx_dma[tx].txd2 = TX_DMA_LSO | TX_DMA_PLEN0(skb->len);
+
+	if (skb->ip_summed == CHECKSUM_PARTIAL)
+		priv->tx_dma[tx].txd4 |= TX_DMA_CHKSUM;
+	else
+		priv->tx_dma[tx].txd4 &= ~TX_DMA_CHKSUM;
+
+	priv->tx_dma[tx].txd4 &= ~0x80;
+
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
+
+	fe_reg_w32(tx_next, FE_REG_TX_CTX_IDX0);
+	netdev_sent_queue(dev, skb->len);
+
+	spin_unlock(&priv->page_lock);
+
+	return NETDEV_TX_OK;
+}
+
+static int fe_poll_rx(struct napi_struct *napi, int budget)
+{
+	struct fe_priv *priv = container_of(napi, struct fe_priv, rx_napi);
+	int idx = fe_reg_r32(FE_REG_RX_CALC_IDX0);
+	int complete = 0;
+	int rx = 0;
+
+	while ((rx < budget) && !complete) {
+		idx = (idx + 1) % NUM_DMA_DESC;
+
+		if (priv->rx_dma[idx].rxd2 & RX_DMA_DONE) {
+			struct sk_buff *new_skb = fe_alloc_skb(priv);
+
+			if (new_skb) {
+				int pktlen = RX_DMA_PLEN0(priv->rx_dma[idx].rxd2);
+				dma_addr_t dma_addr;
+
+				dma_unmap_single(&priv->netdev->dev, priv->rx_dma[idx].rxd1,
+						MAX_RX_LENGTH, DMA_FROM_DEVICE);
+
+				skb_put(priv->rx_skb[idx], pktlen);
+				priv->rx_skb[idx]->dev = priv->netdev;
+				priv->rx_skb[idx]->protocol = eth_type_trans(priv->rx_skb[idx], priv->netdev);
+				if (priv->rx_dma[idx].rxd4 & priv->soc->checksum_bit)
+					priv->rx_skb[idx]->ip_summed = CHECKSUM_UNNECESSARY;
+				else
+					priv->rx_skb[idx]->ip_summed = CHECKSUM_NONE;
+				priv->netdev->stats.rx_packets++;
+				priv->netdev->stats.rx_bytes += pktlen;
+				netif_receive_skb(priv->rx_skb[idx]);
+
+				priv->rx_skb[idx] = new_skb;
+
+				dma_addr = dma_map_single(&priv->netdev->dev,
+						  new_skb->data,
+						  MAX_RX_LENGTH,
+						  DMA_FROM_DEVICE);
+				priv->rx_dma[idx].rxd1 = (unsigned int) dma_addr;
+				wmb();
+			} else {
+				priv->netdev->stats.rx_dropped++;
+			}
+
+			if (priv->soc->rx_dma)
+				priv->soc->rx_dma(priv, idx, MAX_RX_LENGTH);
+			else
+				priv->rx_dma[idx].rxd2 = RX_DMA_LSO;
+			fe_reg_w32(idx, FE_REG_RX_CALC_IDX0);
+
+			rx++;
+		} else {
+			complete = 1;
+		}
+	}
+
+	if (complete) {
+		napi_complete(&priv->rx_napi);
+		fe_int_enable(priv->soc->rx_dly_int);
+	}
+
+	return rx;
+}
+
+static void fe_tx_housekeeping(unsigned long ptr)
+{
+	struct net_device *dev = (struct net_device*)ptr;
+	struct fe_priv *priv = netdev_priv(dev);
+	unsigned int bytes_compl = 0;
+	unsigned int pkts_compl = 0;
+
+	spin_lock(&priv->page_lock);
+	while (1) {
+		struct fe_tx_dma *txd;
+
+		txd = &priv->tx_dma[priv->tx_free_idx];
+
+		if (!(txd->txd2 & TX_DMA_DONE) || !(priv->tx_skb[priv->tx_free_idx]))
+			break;
+
+		bytes_compl += priv->tx_skb[priv->tx_free_idx]->len;
+		pkts_compl++;
+
+		dev_kfree_skb_irq(priv->tx_skb[priv->tx_free_idx]);
+		priv->tx_skb[priv->tx_free_idx] = NULL;
+		priv->tx_free_idx++;
+		if (priv->tx_free_idx >= NUM_DMA_DESC)
+			priv->tx_free_idx = 0;
+	}
+
+	netdev_completed_queue(priv->netdev, pkts_compl, bytes_compl);
+        spin_unlock(&priv->page_lock);
+
+	fe_int_enable(priv->soc->tx_dly_int);
+}
+
+static void fe_tx_timeout(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+        tasklet_schedule(&priv->tx_tasklet);
+	priv->netdev->stats.tx_errors++;
+	netdev_err(dev, "transmit timed out, waking up the queue\n");
+	netif_wake_queue(dev);
+}
+
+static irqreturn_t fe_handle_irq(int irq, void *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	unsigned int status;
+	unsigned int mask;
+
+	status = fe_reg_r32(FE_REG_FE_INT_STATUS);
+	mask = fe_reg_r32(FE_REG_FE_INT_ENABLE);
+
+	if (!(status & mask))
+		return IRQ_NONE;
+
+	if (status & priv->soc->rx_dly_int) {
+		fe_int_disable(priv->soc->rx_dly_int);
+		napi_schedule(&priv->rx_napi);
+	}
+
+	if (status & priv->soc->tx_dly_int) {
+		fe_int_disable(priv->soc->tx_dly_int);
+		tasklet_schedule(&priv->tx_tasklet);
+	}
+
+	fe_reg_w32(status, FE_REG_FE_INT_STATUS);
+
+	return IRQ_HANDLED;
+}
+
+static int fe_hw_init(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	int err;
+
+	err = devm_request_irq(priv->device, dev->irq, fe_handle_irq, 0,
+				dev_name(priv->device), dev);
+	if (err)
+		return err;
+
+	err = fe_alloc_rx(priv);
+	if (!err)
+		err = fe_alloc_tx(priv);
+	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);
+
+	fe_reg_w32(FE_DELAY_INIT, FE_REG_DLY_INT_CFG);
+
+	fe_int_disable(priv->soc->tx_dly_int | priv->soc->rx_dly_int);
+
+	tasklet_init(&priv->tx_tasklet, fe_tx_housekeeping, (unsigned long)dev);
+
+	if (priv->soc->fwd_config) {
+		priv->soc->fwd_config(priv);
+	} else {
+		unsigned long sysclk = priv->sysclk;
+
+		if (!sysclk) {
+			netdev_err(dev, "unable to get clock\n");
+			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);
+
+		fe_w32(fe_r32(FE_GDMA1_FWD_CFG) & ~0xffff, FE_GDMA1_FWD_CFG);
+		fe_w32(fe_r32(FE_GDMA1_FWD_CFG) | (FE_GDM1_ICS_EN | FE_GDM1_TCS_EN | FE_GDM1_UCS_EN),
+			FE_GDMA1_FWD_CFG);
+		fe_w32(fe_r32(FE_CDMA_CSG_CFG) | (FE_ICS_GEN_EN | FE_TCS_GEN_EN | FE_UCS_GEN_EN),
+			FE_CDMA_CSG_CFG);
+		fe_w32(FE_PSE_FQFC_CFG_INIT, FE_PSE_FQ_CFG);
+	}
+
+	fe_w32(1, FE_FE_RST_GL);
+	fe_w32(0, FE_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;
+
+	spin_lock_irqsave(&priv->page_lock, flags);
+	napi_enable(&priv->rx_napi);
+
+	val = FE_TX_WB_DDONE | FE_RX_DMA_EN | FE_TX_DMA_EN;
+	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);
+
+	netif_start_queue(dev);
+	fe_int_enable(priv->soc->tx_dly_int | priv->soc->rx_dly_int);
+
+	return 0;
+}
+
+static int fe_stop(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	unsigned long flags;
+
+	fe_int_disable(priv->soc->tx_dly_int | priv->soc->rx_dly_int);
+
+	netif_stop_queue(dev);
+
+	if (priv->phy)
+		priv->phy->stop(priv);
+
+	spin_lock_irqsave(&priv->page_lock, flags);
+	napi_disable(&priv->rx_napi);
+
+	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);
+
+	return 0;
+}
+
+static int __init fe_init(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+	struct device_node *port;
+	int err;
+
+	BUG_ON(!priv->soc->reset_fe);
+	priv->soc->reset_fe();
+
+	if (priv->soc->switch_init)
+		priv->soc->switch_init(priv);
+
+	net_srandom(jiffies);
+	memcpy(dev->dev_addr, priv->soc->mac, ETH_ALEN);
+	of_get_mac_address_mtd(priv->device->of_node, dev->dev_addr);
+
+	err = fe_mdio_init(priv);
+	if (err)
+		return err;
+
+	if (priv->phy) {
+		err = priv->phy->connect(priv);
+		if (err)
+			goto err_mdio_cleanup;
+	}
+
+	if (priv->soc->port_init)
+		for_each_child_of_node(priv->device->of_node, port)
+			if (of_device_is_compatible(port, "ralink,eth-port"))
+				priv->soc->port_init(priv, port);
+
+	err = fe_hw_init(dev);
+	if (err)
+		goto err_phy_disconnect;
+
+	return 0;
+
+err_phy_disconnect:
+	if (priv->phy)
+		priv->phy->disconnect(priv);
+err_mdio_cleanup:
+	fe_mdio_cleanup(priv);
+
+	return err;
+}
+
+static void fe_uninit(struct net_device *dev)
+{
+	struct fe_priv *priv = netdev_priv(dev);
+
+	tasklet_kill(&priv->tx_tasklet);
+
+	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);
+
+	fe_free_dma(priv);
+}
+
+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_tx_timeout		= fe_tx_timeout,
+	.ndo_set_mac_address	= fe_set_mac_address,
+	.ndo_change_mtu		= eth_change_mtu,
+	.ndo_validate_addr	= eth_validate_addr,
+};
+
+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 = NULL;
+	struct net_device *netdev;
+	struct fe_priv *priv;
+	struct clk *sysclk;
+	int err;
+
+	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;
+
+	fe_base = devm_request_and_ioremap(&pdev->dev, res);
+	if (!fe_base)
+		return -ENOMEM;
+
+	netdev = alloc_etherdev(sizeof(struct fe_priv));
+	if (!netdev) {
+		dev_err(&pdev->dev, "alloc_etherdev failed\n");
+		return -ENOMEM;
+	}
+
+	strcpy(netdev->name, "eth%d");
+	netdev->netdev_ops = &fe_netdev_ops;
+	netdev->base_addr = (unsigned long) fe_base;
+	netdev->watchdog_timeo = TX_TIMEOUT;
+	netdev->features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
+
+	netdev->irq = platform_get_irq(pdev, 0);
+	if (netdev->irq < 0) {
+		dev_err(&pdev->dev, "no IRQ resource found\n");
+		kfree(netdev);
+		return -ENXIO;
+	}
+
+	priv = netdev_priv(netdev);
+	memset(priv, 0, sizeof(struct fe_priv));
+	spin_lock_init(&priv->page_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;
+
+	err = register_netdev(netdev);
+	if (err) {
+		dev_err(&pdev->dev, "error bringing up device\n");
+		kfree(netdev);
+		return err;
+	}
+	netif_napi_add(netdev, &priv->rx_napi, fe_poll_rx, 32);
+
+	platform_set_drvdata(pdev, netdev);
+
+	netdev_info(netdev, "done loading\n");
+
+	return 0;
+}
+
+static int fe_remove(struct platform_device *pdev)
+{
+        struct net_device *dev = platform_get_drvdata(pdev);
+	struct fe_priv *priv = netdev_priv(dev);
+
+	netif_stop_queue(dev);
+	netif_napi_del(&priv->rx_napi);
+
+	unregister_netdev(dev);
+	free_netdev(dev);
+
+	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");
--- /dev/null
+++ b/drivers/net/ethernet/ralink/ralink_soc_eth.h
@@ -0,0 +1,374 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   based on Ralink SDK3.3
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#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>
+
+
+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_RX_BASE_PTR0,
+	FE_REG_RX_MAX_CNT0,
+	FE_REG_RX_CALC_IDX0,
+	FE_REG_FE_INT_ENABLE,
+	FE_REG_FE_INT_STATUS,
+	FE_REG_FE_DMA_VID_BASE,
+	FE_REG_COUNT
+};
+
+#define NUM_DMA_DESC		0x100
+
+#define FE_DELAY_EN_INT		0x80
+#define FE_DELAY_MAX_INT	0x04
+#define FE_DELAY_MAX_TOUT	0x04
+#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
+
+/* 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 RT5350_RX_DLY_INT	BIT(30)
+#define RT5350_TX_DLY_INT	BIT(28)
+
+/* 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)
+
+#define MT7620A_GDMA_OFFSET		0x0600
+#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)
+
+#define RT5350_SDM_CFG		(RT5350_SDM_OFFSET + 0x00)  //Switch DMA configuration
+#define RT5350_SDM_RRING	(RT5350_SDM_OFFSET + 0x04)  //Switch DMA Rx Ring
+#define RT5350_SDM_TRING	(RT5350_SDM_OFFSET + 0x08)  //Switch DMA Tx Ring
+#define RT5350_SDM_MAC_ADRL	(RT5350_SDM_OFFSET + 0x0C)  //Switch MAC address LSB
+#define RT5350_SDM_MAC_ADRH	(RT5350_SDM_OFFSET + 0x10)  //Switch MAC Address MSB
+#define RT5350_SDM_TPCNT	(RT5350_SDM_OFFSET + 0x100) //Switch DMA Tx packet count
+#define RT5350_SDM_TBCNT	(RT5350_SDM_OFFSET + 0x104) //Switch DMA Tx byte count
+#define RT5350_SDM_RPCNT	(RT5350_SDM_OFFSET + 0x108) //Switch DMA rx packet count
+#define RT5350_SDM_RBCNT	(RT5350_SDM_OFFSET + 0x10C) //Switch DMA rx byte count
+#define RT5350_SDM_CS_ERR	(RT5350_SDM_OFFSET + 0x110) //Switch DMA rx checksum error count
+
+#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_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_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
+
+#define RX_DMA_PLEN0(_x)	(((_x) >> 16) & 0x3fff)
+#define RX_DMA_LSO		BIT(30)
+#define RX_DMA_DONE		BIT(31)
+#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_PLEN0_MASK	((0x3fff) << 16)
+#define TX_DMA_PLEN0(_x)	(((_x) & 0x3fff) << 16)
+#define TX_DMA_LSO		BIT(30)
+#define TX_DMA_DONE		BIT(31)
+#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_CHKSUM		(0x7 << 29)
+
+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 {
+	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];
+	spinlock_t		lock;
+
+	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
+{
+	unsigned char mac[6];
+	const u32 *reg_table;
+
+	void (*reset_fe)(void);
+	void (*set_mac)(struct fe_priv *priv, unsigned char *mac);
+	void (*fwd_config)(struct fe_priv *priv);
+	void (*tx_dma)(struct fe_priv *priv, int idx, int len);
+	void (*rx_dma)(struct fe_priv *priv, int idx, int len);
+	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_dly_int;
+	u32 tx_dly_int;
+	u32 checksum_bit;
+
+	int min_pkt_len;
+};
+
+struct fe_priv
+{
+	spinlock_t			page_lock;
+
+	struct fe_soc_data		*soc;
+	struct net_device		*netdev;
+	struct device			*device;
+	unsigned long			sysclk;
+
+	struct fe_rx_dma		*rx_dma;
+        struct napi_struct		rx_napi;
+	struct sk_buff			*rx_skb[NUM_DMA_DESC];
+	dma_addr_t			rx_phys;
+
+	struct fe_tx_dma		*tx_dma;
+	struct tasklet_struct		tx_tasklet;
+	struct sk_buff			*tx_skb[NUM_DMA_DESC];
+	dma_addr_t			tx_phys;
+	unsigned int			tx_free_idx;
+
+	struct fe_phy			*phy;
+	struct mii_bus			*mii_bus;
+	int				mii_irq[PHY_MAX_ADDR];
+
+	int				link[8];
+};
+
+extern const struct of_device_id of_fe_match[];
+
+void fe_w32(u32 val, unsigned reg);
+u32 fe_r32(unsigned reg);
+
+#endif /* FE_ETH_H */
--- /dev/null
+++ b/drivers/net/ethernet/ralink/soc_mt7620.c
@@ -0,0 +1,111 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+
+#include "ralink_soc_eth.h"
+#include "gsw_mt7620a.h"
+
+#define MT7620A_CDMA_CSG_CFG	0x400
+#define MT7620_DMA_VID		(MT7620A_CDMA_CSG_CFG | 0x30)
+#define MT7620A_DMA_2B_OFFSET	BIT(31)
+#define MT7620A_RESET_FE	BIT(21)
+#define MT7620A_RESET_ESW	BIT(23)
+#define MT7620_L4_VALID		BIT(23)
+
+#define SYSC_REG_RESET_CTRL     0x34
+#define MAX_RX_LENGTH           1536
+
+#define CDMA_ICS_EN		BIT(2)
+#define CDMA_UCS_EN		BIT(1)
+#define CDMA_TCS_EN		BIT(0)
+
+#define GDMA_ICS_EN		BIT(22)
+#define GDMA_TCS_EN		BIT(21)
+#define GDMA_UCS_EN		BIT(20)
+
+static const u32 rt5350_reg_table[FE_REG_COUNT] = {
+	[FE_REG_PDMA_GLO_CFG] = RT5350_PDMA_GLO_CFG,
+	[FE_REG_PDMA_RST_CFG] = RT5350_PDMA_RST_CFG,
+	[FE_REG_DLY_INT_CFG] = RT5350_DLY_INT_CFG,
+	[FE_REG_TX_BASE_PTR0] = RT5350_TX_BASE_PTR0,
+	[FE_REG_TX_MAX_CNT0] = RT5350_TX_MAX_CNT0,
+	[FE_REG_TX_CTX_IDX0] = RT5350_TX_CTX_IDX0,
+	[FE_REG_RX_BASE_PTR0] = RT5350_RX_BASE_PTR0,
+	[FE_REG_RX_MAX_CNT0] = RT5350_RX_MAX_CNT0,
+	[FE_REG_RX_CALC_IDX0] = RT5350_RX_CALC_IDX0,
+	[FE_REG_FE_INT_ENABLE] = RT5350_FE_INT_ENABLE,
+	[FE_REG_FE_INT_STATUS] = RT5350_FE_INT_STATUS,
+	[FE_REG_FE_DMA_VID_BASE] = MT7620_DMA_VID,
+};
+
+static void mt7620_fe_reset(void)
+{
+	rt_sysc_w32(MT7620A_RESET_FE | MT7620A_RESET_ESW, SYSC_REG_RESET_CTRL);
+	rt_sysc_w32(0, SYSC_REG_RESET_CTRL);
+}
+
+static void mt7620_fwd_config(struct fe_priv *priv)
+{
+	fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) & ~7, MT7620A_GDMA1_FWD_CFG);
+	fe_w32(fe_r32(MT7620A_GDMA1_FWD_CFG) | (GDMA_ICS_EN | GDMA_TCS_EN | GDMA_UCS_EN), MT7620A_GDMA1_FWD_CFG);
+	fe_w32(fe_r32(MT7620A_CDMA_CSG_CFG) | (CDMA_ICS_EN | CDMA_UCS_EN | CDMA_TCS_EN), MT7620A_CDMA_CSG_CFG);
+}
+
+static void mt7620_tx_dma(struct fe_priv *priv, int idx, int len)
+{
+	if (len)
+		priv->tx_dma[idx].txd2 = TX_DMA_LSO | TX_DMA_PLEN0(len);
+	else
+		priv->tx_dma[idx].txd2 = TX_DMA_LSO | TX_DMA_DONE;
+}
+
+static void mt7620_rx_dma(struct fe_priv *priv, int idx, int len)
+{
+	priv->rx_dma[idx].rxd2 = RX_DMA_PLEN0(len);
+}
+
+static struct fe_soc_data mt7620_data = {
+	.mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
+	.reset_fe = mt7620_fe_reset,
+	.set_mac = mt7620_set_mac,
+	.fwd_config = mt7620_fwd_config,
+	.tx_dma = mt7620_tx_dma,
+	.rx_dma = mt7620_rx_dma,
+	.switch_init = mt7620_gsw_probe,
+	.port_init = mt7620_port_init,
+	.min_pkt_len = 0,
+	.reg_table = rt5350_reg_table,
+	.pdma_glo_cfg = FE_PDMA_SIZE_16DWORDS | MT7620A_DMA_2B_OFFSET,
+	.rx_dly_int = RT5350_RX_DLY_INT,
+	.tx_dly_int = RT5350_TX_DLY_INT,
+	.checksum_bit = MT7620_L4_VALID,
+	.has_carrier = mt7620a_has_carrier,
+	.mdio_read = mt7620_mdio_read,
+	.mdio_write = mt7620_mdio_write,
+	.mdio_adjust_link = mt7620_mdio_link_adjust,
+};
+
+const struct of_device_id of_fe_match[] = {
+	{ .compatible = "ralink,mt7620a-eth", .data = &mt7620_data },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, of_fe_match);
--- /dev/null
+++ b/drivers/net/ethernet/ralink/soc_rt2880.c
@@ -0,0 +1,51 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/module.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+
+#include "ralink_soc_eth.h"
+#include "mdio_rt2880.h"
+
+#define SYSC_REG_RESET_CTRL		0x034
+#define RT2880_RESET_FE			BIT(18)
+
+void rt2880_fe_reset(void)
+{
+	rt_sysc_w32(RT2880_RESET_FE, SYSC_REG_RESET_CTRL);
+}
+
+struct fe_soc_data rt2880_data = {
+	.mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
+	.reset_fe = rt2880_fe_reset,
+	.min_pkt_len = 64,
+        .pdma_glo_cfg = FE_PDMA_SIZE_4DWORDS,
+	.checksum_bit = RX_DMA_L4VALID,
+	.rx_dly_int = FE_RX_DLY_INT,
+	.tx_dly_int = FE_TX_DLY_INT,
+	.mdio_read = rt2880_mdio_read,
+	.mdio_write = rt2880_mdio_write,
+	.mdio_adjust_link = rt2880_mdio_link_adjust,
+};
+
+const struct of_device_id of_fe_match[] = {
+	{ .compatible = "ralink,rt2880-eth", .data = &rt2880_data },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, of_fe_match);
--- /dev/null
+++ b/drivers/net/ethernet/ralink/soc_rt305x.c
@@ -0,0 +1,113 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/module.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+
+#include "ralink_soc_eth.h"
+
+#define RT305X_RESET_FE         BIT(21)
+#define RT305X_RESET_ESW        BIT(23)
+#define SYSC_REG_RESET_CTRL     0x034
+
+static const u32 rt5350_reg_table[FE_REG_COUNT] = {
+	[FE_REG_PDMA_GLO_CFG] = RT5350_PDMA_GLO_CFG,
+	[FE_REG_PDMA_RST_CFG] = RT5350_PDMA_RST_CFG,
+	[FE_REG_DLY_INT_CFG] = RT5350_DLY_INT_CFG,
+	[FE_REG_TX_BASE_PTR0] = RT5350_TX_BASE_PTR0,
+	[FE_REG_TX_MAX_CNT0] = RT5350_TX_MAX_CNT0,
+	[FE_REG_TX_CTX_IDX0] = RT5350_TX_CTX_IDX0,
+	[FE_REG_RX_BASE_PTR0] = RT5350_RX_BASE_PTR0,
+	[FE_REG_RX_MAX_CNT0] = RT5350_RX_MAX_CNT0,
+	[FE_REG_RX_CALC_IDX0] = RT5350_RX_CALC_IDX0,
+	[FE_REG_FE_INT_ENABLE] = RT5350_FE_INT_ENABLE,
+	[FE_REG_FE_INT_STATUS] = RT5350_FE_INT_STATUS,
+	[FE_REG_FE_DMA_VID_BASE] = 0,
+};
+
+static void rt305x_fe_reset(void)
+{
+	rt_sysc_w32(RT305X_RESET_FE, SYSC_REG_RESET_CTRL);
+	rt_sysc_w32(0, SYSC_REG_RESET_CTRL);
+}
+
+static void rt5350_set_mac(struct fe_priv *priv, unsigned char *mac)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->page_lock, flags);
+	fe_w32((mac[0] << 8) | mac[1], RT5350_SDM_MAC_ADRH);
+	fe_w32((mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | mac[5],
+		RT5350_SDM_MAC_ADRL);
+	spin_unlock_irqrestore(&priv->page_lock, flags);
+}
+
+static void rt5350_fwd_config(struct fe_priv *priv)
+{
+	unsigned long sysclk = priv->sysclk;
+
+	if (sysclk) {
+		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);
+	}
+
+	fe_w32(fe_r32(RT5350_SDM_CFG) & ~0xffff, RT5350_SDM_CFG);
+	fe_w32(fe_r32(RT5350_SDM_CFG) | RT5350_SDM_ICS_EN | RT5350_SDM_TCS_EN | RT5350_SDM_UCS_EN,
+		RT5350_SDM_CFG);
+}
+
+static void rt5350_fe_reset(void)
+{
+	rt_sysc_w32(RT305X_RESET_FE | RT305X_RESET_ESW, SYSC_REG_RESET_CTRL);
+	rt_sysc_w32(0, SYSC_REG_RESET_CTRL);
+}
+
+static struct fe_soc_data rt3050_data = {
+	.mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
+	.reset_fe = rt305x_fe_reset,
+	.min_pkt_len = 64,
+        .pdma_glo_cfg = FE_PDMA_SIZE_4DWORDS,
+	.checksum_bit = RX_DMA_L4VALID,
+	.rx_dly_int = FE_RX_DLY_INT,
+	.tx_dly_int = FE_TX_DLY_INT,
+};
+
+static struct fe_soc_data rt5350_data = {
+	.mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
+	.reg_table = rt5350_reg_table,
+	.reset_fe = rt5350_fe_reset,
+	.set_mac = rt5350_set_mac,
+	.fwd_config = rt5350_fwd_config,
+	.min_pkt_len = 64,
+        .pdma_glo_cfg = FE_PDMA_SIZE_4DWORDS,
+	.checksum_bit = RX_DMA_L4VALID,
+	.rx_dly_int = RT5350_RX_DLY_INT,
+	.tx_dly_int = RT5350_TX_DLY_INT,
+};
+
+const struct of_device_id of_fe_match[] = {
+	{ .compatible = "ralink,rt3050-eth", .data = &rt3050_data },
+	{ .compatible = "ralink,rt5350-eth", .data = &rt5350_data },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, of_fe_match);
--- /dev/null
+++ b/drivers/net/ethernet/ralink/soc_rt3883.c
@@ -0,0 +1,60 @@
+/*
+ *   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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/module.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+
+#include "ralink_soc_eth.h"
+#include "mdio_rt2880.h"
+
+#define RT3883_SYSC_REG_RSTCTRL		0x34
+#define RT3883_RSTCTRL_FE		BIT(21)
+
+static void rt3883_fe_reset(void)
+{
+	u32 t;
+
+	t = rt_sysc_r32(RT3883_SYSC_REG_RSTCTRL);
+	t |= RT3883_RSTCTRL_FE;
+	rt_sysc_w32(t , RT3883_SYSC_REG_RSTCTRL);
+
+	t &= ~RT3883_RSTCTRL_FE;
+	rt_sysc_w32(t, RT3883_SYSC_REG_RSTCTRL);
+}
+
+static struct fe_soc_data rt3883_data = {
+	.mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
+	.reset_fe = rt3883_fe_reset,
+	.min_pkt_len = 64,
+        .pdma_glo_cfg = FE_PDMA_SIZE_4DWORDS,
+	.rx_dly_int = FE_RX_DLY_INT,
+	.tx_dly_int = FE_TX_DLY_INT,
+	.checksum_bit = RX_DMA_L4VALID,
+	.mdio_read = rt2880_mdio_read,
+	.mdio_write = rt2880_mdio_write,
+	.mdio_adjust_link = rt2880_mdio_link_adjust,
+	.port_init = rt2880_port_init,
+};
+
+const struct of_device_id of_fe_match[] = {
+	{ .compatible = "ralink,rt3883-eth", .data = &rt3883_data },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, of_fe_match);
+