openwrt/target/linux/mediatek/patches-4.4/0089-net-mediatek-add-gsw-mt7530-driver.patch

From bb14507c0624e088da231b6b20fd6add032e9226 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 11 Apr 2016 03:11:54 +0200
Subject: [PATCH 89/90] net: mediatek add gsw/mt7530 driver

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/net/ethernet/mediatek/Makefile      |    2 +-
 drivers/net/ethernet/mediatek/gsw_mt7620.h  |  251 +++++++
 drivers/net/ethernet/mediatek/gsw_mt7623.c  | 1084 +++++++++++++++++++++++++++
 drivers/net/ethernet/mediatek/mt7530.c      |  808 ++++++++++++++++++++
 drivers/net/ethernet/mediatek/mt7530.h      |   20 +
 drivers/net/ethernet/mediatek/mtk_eth_soc.c |   59 +-
 drivers/net/ethernet/mediatek/mtk_eth_soc.h |    4 +
 7 files changed, 2198 insertions(+), 30 deletions(-)
 create mode 100644 drivers/net/ethernet/mediatek/gsw_mt7620.h
 create mode 100644 drivers/net/ethernet/mediatek/gsw_mt7623.c
 create mode 100644 drivers/net/ethernet/mediatek/mt7530.c
 create mode 100644 drivers/net/ethernet/mediatek/mt7530.h

diff --git a/drivers/net/ethernet/mediatek/Makefile b/drivers/net/ethernet/mediatek/Makefile
index aa3f1c8..82001c4 100644
--- a/drivers/net/ethernet/mediatek/Makefile
+++ b/drivers/net/ethernet/mediatek/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the Mediatek SoCs built-in ethernet macs
 #
 
-obj-$(CONFIG_NET_MEDIATEK_SOC)			+= mtk_eth_soc.o
+obj-$(CONFIG_NET_MEDIATEK_SOC)			+= mt7530.o gsw_mt7623.o mtk_eth_soc.o
diff --git a/drivers/net/ethernet/mediatek/gsw_mt7620.h b/drivers/net/ethernet/mediatek/gsw_mt7620.h
new file mode 100644
index 0000000..6fca8f2
--- /dev/null
+++ b/drivers/net/ethernet/mediatek/gsw_mt7620.h
@@ -0,0 +1,251 @@
+/*   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; version 2 of the License
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   Copyright (C) 2009-2016 John Crispin <blogic@openwrt.org>
+ *   Copyright (C) 2009-2016 Felix Fietkau <nbd@openwrt.org>
+ *   Copyright (C) 2013-2016 Michael Lee <igvtee@gmail.com>
+ */
+
+#ifndef _RALINK_GSW_MT7620_H__
+#define _RALINK_GSW_MT7620_H__
+
+#define GSW_REG_PHY_TIMEOUT	(5 * HZ)
+
+#define MT7620_GSW_REG_PIAC	0x0004
+
+#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 GSW_REG_GPC1		0x7014
+
+#define SYSC_REG_CHIP_REV_ID	0x0c
+#define SYSC_REG_CFG		0x10
+#define SYSC_REG_CFG1		0x14
+#define RST_CTRL_MCM		BIT(2)
+#define SYSC_PAD_RGMII2_MDIO	0x58
+#define SYSC_GPIO_MODE		0x60
+
+#define PORT_IRQ_ST_CHG		0x7f
+
+#define MT7621_ESW_PHY_POLLING	0x0000
+#define MT7620_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)
+
+/* ethernet subsystem config register */
+#define ETHSYS_SYSCFG0		0x14
+/* ethernet subsystem clock register */
+#define ETHSYS_CLKCFG0		0x2c
+#define ETHSYS_TRGMII_CLK_SEL362_5	BIT(11)
+
+/* p5 RGMII wrapper TX clock control register */
+#define MT7530_P5RGMIITXCR	0x7b04
+/* p5 RGMII wrapper RX clock control register */
+#define MT7530_P5RGMIIRXCR	0x7b00
+/* TRGMII TDX ODT registers */
+#define MT7530_TRGMII_TD0_ODT	0x7a54
+#define MT7530_TRGMII_TD1_ODT	0x7a5c
+#define MT7530_TRGMII_TD2_ODT	0x7a64
+#define MT7530_TRGMII_TD3_ODT	0x7a6c
+#define MT7530_TRGMII_TD4_ODT	0x7a74
+#define MT7530_TRGMII_TD5_ODT	0x7a7c
+/* TRGMII TCK ctrl register */
+#define MT7530_TRGMII_TCK_CTRL	0x7a78
+/* TRGMII Tx ctrl register */
+#define MT7530_TRGMII_TXCTRL	0x7a40
+/* port 6 extended control register */
+#define MT7530_P6ECR            0x7830
+/* IO driver control register */
+#define MT7530_IO_DRV_CR	0x7810
+/* top signal control register */
+#define MT7530_TOP_SIG_CTRL	0x7808
+/* modified hwtrap register */
+#define MT7530_MHWTRAP		0x7804
+/* hwtrap status register */
+#define MT7530_HWTRAP		0x7800
+/* status interrupt register */
+#define MT7530_SYS_INT_STS	0x700c
+/* system nterrupt register */
+#define MT7530_SYS_INT_EN	0x7008
+/* system control register */
+#define MT7530_SYS_CTRL		0x7000
+/* port MAC status register */
+#define MT7530_PMSR_P(x)	(0x3008 + (x * 0x100))
+/* port MAC control register */
+#define MT7530_PMCR_P(x)	(0x3000 + (x * 0x100))
+
+#define MT7621_XTAL_SHIFT	6
+#define MT7621_XTAL_MASK	0x7
+#define MT7621_XTAL_25		6
+#define MT7621_XTAL_40		3
+#define MT7621_MDIO_DRV_MASK	(3 << 4)
+#define MT7621_GE1_MODE_MASK	(3 << 12)
+
+#define TRGMII_TXCTRL_TXC_INV	BIT(30)
+#define P6ECR_INTF_MODE_RGMII	BIT(1)
+#define P5RGMIIRXCR_C_ALIGN	BIT(8)
+#define P5RGMIIRXCR_DELAY_2	BIT(1)
+#define P5RGMIITXCR_DELAY_2	(BIT(8) | BIT(2))
+
+/* TOP_SIG_CTRL bits */
+#define TOP_SIG_CTRL_NORMAL	(BIT(17) | BIT(16))
+
+/* MHWTRAP bits */
+#define MHWTRAP_MANUAL		BIT(16)
+#define MHWTRAP_P5_MAC_SEL	BIT(13)
+#define MHWTRAP_P6_DIS		BIT(8)
+#define MHWTRAP_P5_RGMII_MODE	BIT(7)
+#define MHWTRAP_P5_DIS		BIT(6)
+#define MHWTRAP_PHY_ACCESS	BIT(5)
+
+/* HWTRAP bits */
+#define HWTRAP_XTAL_SHIFT	9
+#define HWTRAP_XTAL_MASK	0x3
+
+/* SYS_CTRL bits */
+#define SYS_CTRL_SW_RST		BIT(1)
+#define SYS_CTRL_REG_RST	BIT(0)
+
+/* PMCR bits */
+#define PMCR_IFG_XMIT_96	BIT(18)
+#define PMCR_MAC_MODE		BIT(16)
+#define PMCR_FORCE_MODE		BIT(15)
+#define PMCR_TX_EN		BIT(14)
+#define PMCR_RX_EN		BIT(13)
+#define PMCR_BACK_PRES_EN	BIT(9)
+#define PMCR_BACKOFF_EN		BIT(8)
+#define PMCR_TX_FC_EN		BIT(5)
+#define PMCR_RX_FC_EN		BIT(4)
+#define PMCR_FORCE_SPEED_1000	BIT(3)
+#define PMCR_FORCE_FDX		BIT(1)
+#define PMCR_FORCE_LNK		BIT(0)
+#define PMCR_FIXED_LINK		(PMCR_IFG_XMIT_96 | PMCR_MAC_MODE | \
+				 PMCR_FORCE_MODE | PMCR_TX_EN | PMCR_RX_EN | \
+				 PMCR_BACK_PRES_EN | PMCR_BACKOFF_EN | \
+				 PMCR_FORCE_SPEED_1000 | PMCR_FORCE_FDX | \
+				 PMCR_FORCE_LNK)
+
+#define PMCR_FIXED_LINK_FC	(PMCR_FIXED_LINK | \
+				 PMCR_TX_FC_EN | PMCR_RX_FC_EN)
+
+/* TRGMII control registers */
+#define GSW_INTF_MODE		0x390
+#define GSW_TRGMII_TD0_ODT	0x354
+#define GSW_TRGMII_TD1_ODT	0x35c
+#define GSW_TRGMII_TD2_ODT	0x364
+#define GSW_TRGMII_TD3_ODT	0x36c
+#define GSW_TRGMII_TXCTL_ODT	0x374
+#define GSW_TRGMII_TCK_ODT	0x37c
+#define GSW_TRGMII_RCK_CTRL	0x300
+
+#define INTF_MODE_TRGMII	BIT(1)
+#define TRGMII_RCK_CTRL_RX_RST	BIT(31)
+
+
+/* possible XTAL speed */
+#define	MT7623_XTAL_40		0
+#define MT7623_XTAL_20		1
+#define MT7623_XTAL_25		3
+
+/* GPIO port control registers */
+#define	GPIO_OD33_CTRL8		0x4c0
+#define	GPIO_BIAS_CTRL		0xed0
+#define GPIO_DRV_SEL10		0xf00
+
+/* on MT7620 the functio of port 4 can be software configured */
+enum {
+	PORT4_EPHY = 0,
+	PORT4_EXT,
+};
+
+/* struct mt7620_gsw -	the structure that holds the SoC specific data
+ * @dev:		The Device struct
+ * @base:		The base address
+ * @piac_offset:	The PIAC base may change depending on SoC
+ * @irq:		The IRQ we are using
+ * @port4:		The port4 mode on MT7620
+ * @autopoll:		Is MDIO autopolling enabled
+ * @ethsys:		The ethsys register map
+ * @pctl:		The pin control register map
+ * @clk_trgpll:		The trgmii pll clock
+ */
+struct mt7620_gsw {
+	struct mtk_eth		*eth;
+	struct device		*dev;
+	void __iomem		*base;
+	u32			piac_offset;
+	int			irq;
+	int			port4;
+	unsigned long int	autopoll;
+
+	struct regmap		*ethsys;
+	struct regmap		*pctl;
+
+	struct clk		*clk_trgpll;
+
+	int			trgmii_force;
+	bool			wllll;
+};
+
+/* switch register I/O wrappers */
+void mtk_switch_w32(struct mt7620_gsw *gsw, u32 val, unsigned reg);
+u32 mtk_switch_r32(struct mt7620_gsw *gsw, unsigned reg);
+
+/* the callback used by the driver core to bringup the switch */
+int mtk_gsw_init(struct mtk_eth *eth);
+
+/* MDIO access wrappers */
+int mt7620_mdio_write(struct mii_bus *bus, int phy_addr, int phy_reg, u16 val);
+int mt7620_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg);
+void mt7620_mdio_link_adjust(struct mtk_eth *eth, int port);
+int mt7620_has_carrier(struct mtk_eth *eth);
+void mt7620_print_link_state(struct mtk_eth *eth, int port, int link,
+			     int speed, int duplex);
+void mt7530_mdio_w32(struct mt7620_gsw *gsw, u32 reg, u32 val);
+u32 mt7530_mdio_r32(struct mt7620_gsw *gsw, u32 reg);
+void mt7530_mdio_m32(struct mt7620_gsw *gsw, u32 mask, u32 set, u32 reg);
+
+u32 _mtk_mdio_write(struct mtk_eth *eth, u32 phy_addr,
+		      u32 phy_register, u32 write_data);
+u32 _mtk_mdio_read(struct mtk_eth *eth, int phy_addr, int phy_reg);
+void mt7620_handle_carrier(struct mtk_eth *eth);
+
+#endif
diff --git a/drivers/net/ethernet/mediatek/gsw_mt7623.c b/drivers/net/ethernet/mediatek/gsw_mt7623.c
new file mode 100644
index 0000000..0c6b8a6
--- /dev/null
+++ b/drivers/net/ethernet/mediatek/gsw_mt7623.c
@@ -0,0 +1,1084 @@
+/*   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; version 2 of the License
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   Copyright (C) 2009-2016 John Crispin <blogic@openwrt.org>
+ *   Copyright (C) 2009-2016 Felix Fietkau <nbd@openwrt.org>
+ *   Copyright (C) 2013-2016 Michael Lee <igvtee@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/of_gpio.h>
+#include <linux/of_mdio.h>
+#include <linux/clk.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regulator/consumer.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/mii.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/dma-mapping.h>
+#include <linux/phy.h>
+#include <linux/ethtool.h>
+#include <linux/version.h>
+#include <linux/atomic.h>
+
+#include "mtk_eth_soc.h"
+#include "gsw_mt7620.h"
+#include "mt7530.h"
+
+#define ETHSYS_CLKCFG0			0x2c
+#define ETHSYS_TRGMII_CLK_SEL362_5	BIT(11)
+
+void mt7530_mdio_w32(struct mt7620_gsw *gsw, u32 reg, u32 val)
+{
+	_mtk_mdio_write(gsw->eth, 0x1f, 0x1f, (reg >> 6) & 0x3ff);
+	_mtk_mdio_write(gsw->eth, 0x1f, (reg >> 2) & 0xf,  val & 0xffff);
+	_mtk_mdio_write(gsw->eth, 0x1f, 0x10, val >> 16);
+}
+
+u32 mt7530_mdio_r32(struct mt7620_gsw *gsw, u32 reg)
+{
+	u16 high, low;
+
+	_mtk_mdio_write(gsw->eth, 0x1f, 0x1f, (reg >> 6) & 0x3ff);
+	low = _mtk_mdio_read(gsw->eth, 0x1f, (reg >> 2) & 0xf);
+	high = _mtk_mdio_read(gsw->eth, 0x1f, 0x10);
+
+	return (high << 16) | (low & 0xffff);
+}
+
+void mt7530_mdio_m32(struct mt7620_gsw *gsw, u32 mask, u32 set, u32 reg)
+{
+	u32 val = mt7530_mdio_r32(gsw, reg);
+
+	val &= mask;
+	val |= set;
+	mt7530_mdio_w32(gsw, reg, val);
+}
+
+void mtk_switch_w32(struct mt7620_gsw *gsw, u32 val, unsigned reg)
+{
+	mtk_w32(gsw->eth, val, reg + 0x10000);
+}
+
+u32 mtk_switch_r32(struct mt7620_gsw *gsw, unsigned reg)
+{
+	return mtk_r32(gsw->eth, reg + 0x10000);
+}
+
+void mtk_switch_m32(struct mt7620_gsw *gsw, u32 mask, u32 set, unsigned reg)
+{
+	u32 val = mtk_switch_r32(gsw, reg);
+
+	val &= mask;
+	val |= set;
+
+	mtk_switch_w32(gsw, val, reg);
+}
+
+int mt7623_gsw_config(struct mtk_eth *eth)
+{
+	if (eth->mii_bus && eth->mii_bus->phy_map[0x1f])
+		mt7530_probe(eth->dev, NULL, eth->mii_bus, 1);
+
+	return 0;
+}
+
+static irqreturn_t gsw_interrupt_mt7623(int irq, void *_eth)
+{
+	struct mtk_eth *eth = (struct mtk_eth *)_eth;
+	struct mt7620_gsw *gsw = (struct mt7620_gsw *)eth->sw_priv;
+	u32 reg, i;
+
+	reg = mt7530_mdio_r32(gsw, 0x700c);
+
+	for (i = 0; i < 5; i++)
+		if (reg & BIT(i)) {
+			unsigned int link;
+
+			link = mt7530_mdio_r32(gsw,
+					       0x3008 + (i * 0x100)) & 0x1;
+
+			if (link)
+				dev_info(gsw->dev,
+					 "port %d link up\n", i);
+			else
+				dev_info(gsw->dev,
+					 "port %d link down\n", i);
+		}
+
+//	mt7620_handle_carrier(eth);
+	mt7530_mdio_w32(gsw, 0x700c, 0x1f);
+
+	return IRQ_HANDLED;
+}
+
+static void wait_loop(struct mt7620_gsw *gsw)
+{
+	int i;
+	int read_data;
+
+	for (i = 0; i < 320; i = i + 1)
+		read_data = mtk_switch_r32(gsw, 0x610);
+}
+
+static void trgmii_calibration_7623(struct mt7620_gsw *gsw)
+{
+
+	unsigned int tap_a[5] = { 0, 0, 0, 0, 0 };	/* minumum delay for all correct */
+	unsigned int tap_b[5] = { 0, 0, 0, 0, 0 };	/* maximum delay for all correct */
+	unsigned int final_tap[5];
+	unsigned int rxc_step_size;
+	unsigned int rxd_step_size;
+	unsigned int read_data;
+	unsigned int tmp;
+	unsigned int rd_wd;
+	int i;
+	unsigned int err_cnt[5];
+	unsigned int init_toggle_data;
+	unsigned int err_flag[5];
+	unsigned int err_total_flag;
+	unsigned int training_word;
+	unsigned int rd_tap;
+	u32 val;
+
+	u32 TRGMII_7623_base;
+	u32 TRGMII_7623_RD_0;
+	u32 TRGMII_RCK_CTRL;
+
+	TRGMII_7623_base = 0x300;	/* 0xFB110300 */
+	TRGMII_7623_RD_0 = TRGMII_7623_base + 0x10;
+	TRGMII_RCK_CTRL = TRGMII_7623_base;
+	rxd_step_size = 0x1;
+	rxc_step_size = 0x4;
+	init_toggle_data = 0x00000055;
+	training_word = 0x000000AC;
+
+	/* RX clock gating in MT7623 */
+	mtk_switch_m32(gsw, 0x3fffffff, 0, TRGMII_7623_base + 0x04);
+
+	/* Assert RX  reset in MT7623 */
+	mtk_switch_m32(gsw, 0, 0x80000000, TRGMII_7623_base + 0x00);
+
+	/* Set TX OE edge in  MT7623 */
+	mtk_switch_m32(gsw, 0, 0x00002000, TRGMII_7623_base + 0x78);
+
+	/* Disable RX clock gating in MT7623 */
+	mtk_switch_m32(gsw, 0, 0xC0000000, TRGMII_7623_base + 0x04);
+
+	/* Release RX reset in MT7623 */
+	mtk_switch_m32(gsw, 0x7fffffff, 0, TRGMII_7623_base);
+
+	for (i = 0; i < 5; i++)
+		mtk_switch_m32(gsw, 0, 0x80000000, TRGMII_7623_RD_0 + i * 8);
+
+	pr_err("Enable Training Mode in MT7530\n");
+	read_data = mt7530_mdio_r32(gsw, 0x7A40);
+	read_data |= 0xC0000000;
+	mt7530_mdio_w32(gsw, 0x7A40, read_data);	/* Enable Training Mode in MT7530 */
+	err_total_flag = 0;
+	pr_err("Adjust RXC delay in MT7623\n");
+	read_data = 0x0;
+	while (err_total_flag == 0 && read_data != 0x68) {
+		pr_err("2nd Enable EDGE CHK in MT7623\n");
+		/* Enable EDGE CHK in MT7623 */
+		for (i = 0; i < 5; i++)
+			    mtk_switch_m32(gsw, 0x4fffffff, 0x40000000, TRGMII_7623_RD_0 + i * 8);
+
+		wait_loop(gsw);
+		err_total_flag = 1;
+		for (i = 0; i < 5; i++) {
+			err_cnt[i] =
+			    mtk_switch_r32(gsw, TRGMII_7623_RD_0 + i * 8) >> 8;
+			err_cnt[i] &= 0x0000000f;
+			rd_wd = mtk_switch_r32(gsw, TRGMII_7623_RD_0 + i * 8) >> 16;
+			rd_wd &= 0x000000ff;
+			val = mtk_switch_r32(gsw, TRGMII_7623_RD_0 + i * 8);
+			pr_err("ERR_CNT = %d, RD_WD =%x, TRGMII_7623_RD_0=%x\n",
+			       err_cnt[i], rd_wd, val);
+			if (err_cnt[i] != 0) {
+				err_flag[i] = 1;
+			} else if (rd_wd != 0x55) {
+				err_flag[i] = 1;
+			} else {
+				err_flag[i] = 0;
+			}
+			err_total_flag = err_flag[i] & err_total_flag;
+		}
+
+		pr_err("2nd Disable EDGE CHK in MT7623\n");
+		/* Disable EDGE CHK in MT7623 */
+		for (i = 0; i < 5; i++)
+			    mtk_switch_m32(gsw, 0x4fffffff, 0x40000000, TRGMII_7623_RD_0 + i * 8);
+		wait_loop(gsw);
+		pr_err("2nd Disable EDGE CHK in MT7623\n");
+		/* Adjust RXC delay */
+		/* RX clock gating in MT7623 */
+		mtk_switch_m32(gsw, 0x3fffffff, 0, TRGMII_7623_base + 0x04);
+		read_data = mtk_switch_r32(gsw, TRGMII_7623_base);
+		if (err_total_flag == 0) {
+			tmp = (read_data & 0x0000007f) + rxc_step_size;
+			pr_err(" RXC delay = %d\n", tmp); 
+			read_data >>= 8;
+			read_data &= 0xffffff80;
+			read_data |= tmp;
+			read_data <<= 8;
+			read_data &= 0xffffff80;
+			read_data |= tmp;
+			mtk_switch_w32(gsw, read_data, TRGMII_7623_base);
+		} else {
+			tmp = (read_data & 0x0000007f) + 16;
+			pr_err(" RXC delay = %d\n", tmp); 
+			read_data >>= 8;
+			read_data &= 0xffffff80;
+			read_data |= tmp;
+			read_data <<= 8;
+			read_data &= 0xffffff80;
+			read_data |= tmp;
+			mtk_switch_w32(gsw, read_data, TRGMII_7623_base);
+		}
+		read_data &= 0x000000ff;
+
+		/* Disable RX clock gating in MT7623 */
+		mtk_switch_m32(gsw, 0, 0xC0000000, TRGMII_7623_base + 0x04);
+		for (i = 0; i < 5; i++)
+			mtk_switch_m32(gsw, 0, 0x80000000, TRGMII_7623_RD_0 + i * 8);
+	}
+
+	/* Read RD_WD MT7623 */
+	for (i = 0; i < 5; i++) {
+		rd_tap = 0;
+		while (err_flag[i] != 0 && rd_tap != 128) {
+			/* Enable EDGE CHK in MT7623 */
+			mtk_switch_m32(gsw, 0x4fffffff, 0x40000000, TRGMII_7623_RD_0 + i * 8);
+			wait_loop(gsw);
+
+			read_data = mtk_switch_r32(gsw, TRGMII_7623_RD_0 + i * 8);
+			err_cnt[i] = (read_data >> 8) & 0x0000000f;	/* Read MT7623 Errcnt */
+			rd_wd = (read_data >> 16) & 0x000000ff;
+			if (err_cnt[i] != 0 || rd_wd != 0x55) {
+				err_flag[i] = 1;
+			} else {
+				err_flag[i] = 0;
+			}
+			/* Disable EDGE CHK in MT7623 */
+			mtk_switch_m32(gsw, 0x4fffffff, 0x40000000, TRGMII_7623_RD_0 + i * 8);
+			wait_loop(gsw);
+			if (err_flag[i] != 0) {
+				rd_tap = (read_data & 0x0000007f) + rxd_step_size;	/* Add RXD delay in MT7623 */
+				read_data = (read_data & 0xffffff80) | rd_tap;
+				mtk_switch_w32(gsw, read_data,
+					TRGMII_7623_RD_0 + i * 8);
+				tap_a[i] = rd_tap;
+			} else {
+				rd_tap = (read_data & 0x0000007f) + 48;
+				read_data = (read_data & 0xffffff80) | rd_tap;
+				mtk_switch_w32(gsw, read_data,
+					TRGMII_7623_RD_0 + i * 8);
+			}
+
+		}
+		pr_err("MT7623 %dth bit  Tap_a = %d\n", i, tap_a[i]);
+	}
+	/* pr_err("Last While Loop\n"); */
+	for (i = 0; i < 5; i++) {
+		while ((err_flag[i] == 0) && (rd_tap != 128)) {
+			read_data = mtk_switch_r32(gsw, TRGMII_7623_RD_0 + i * 8);
+			rd_tap = (read_data & 0x0000007f) + rxd_step_size;	/* Add RXD delay in MT7623 */
+			read_data = (read_data & 0xffffff80) | rd_tap;
+			mtk_switch_w32(gsw, read_data, TRGMII_7623_RD_0 + i * 8);
+			/* Enable EDGE CHK in MT7623 */
+			val =
+			    mtk_switch_r32(gsw, TRGMII_7623_RD_0 + i * 8) | 0x40000000;
+			val &= 0x4fffffff;
+			mtk_switch_w32(gsw, val, TRGMII_7623_RD_0 + i * 8);
+			wait_loop(gsw);
+			read_data = mtk_switch_r32(gsw, TRGMII_7623_RD_0 + i * 8);
+			err_cnt[i] = (read_data >> 8) & 0x0000000f;	/* Read MT7623 Errcnt */
+			rd_wd = (read_data >> 16) & 0x000000ff;
+			if (err_cnt[i] != 0 || rd_wd != 0x55) {
+				err_flag[i] = 1;
+			} else {
+				err_flag[i] = 0;
+			}
+
+			/* Disable EDGE CHK in MT7623 */
+			mtk_switch_m32(gsw, 0x4fffffff, 0x40000000, TRGMII_7623_RD_0 + i * 8);
+			wait_loop(gsw);
+
+		}
+
+		tap_b[i] = rd_tap;	/* -rxd_step_size; */
+		pr_err("MT7623 %dth bit  Tap_b = %d\n", i, tap_b[i]);
+		final_tap[i] = (tap_a[i] + tap_b[i]) / 2;	/* Calculate RXD delay = (TAP_A + TAP_B)/2 */
+		read_data = (read_data & 0xffffff80) | final_tap[i];
+		mtk_switch_w32(gsw, read_data, TRGMII_7623_RD_0 + i * 8);
+	}
+
+	read_data = mt7530_mdio_r32(gsw, 0x7A40);
+	read_data &= 0x3fffffff;
+	mt7530_mdio_w32(gsw, 0x7A40, read_data);
+}
+
+static void trgmii_calibration_7530(struct mt7620_gsw *gsw)
+{
+
+	unsigned int tap_a[5] = { 0, 0, 0, 0, 0 };
+	unsigned int tap_b[5] = { 0, 0, 0, 0, 0 };
+	unsigned int final_tap[5];
+	unsigned int rxc_step_size;
+	unsigned int rxd_step_size;
+	unsigned int read_data;
+	unsigned int tmp = 0;
+	int i;
+	unsigned int err_cnt[5];
+	unsigned int rd_wd;
+	unsigned int init_toggle_data;
+	unsigned int err_flag[5];
+	unsigned int err_total_flag;
+	unsigned int training_word;
+	unsigned int rd_tap;
+
+	u32 TRGMII_7623_base;
+	u32 TRGMII_7530_RD_0;
+	u32 TRGMII_RCK_CTRL;
+	u32 TRGMII_7530_base;
+	u32 TRGMII_7530_TX_base;
+	u32 val;
+
+	TRGMII_7623_base = 0x300;
+	TRGMII_7530_base = 0x7A00;
+	TRGMII_7530_RD_0 = TRGMII_7530_base + 0x10;
+	TRGMII_RCK_CTRL = TRGMII_7623_base;
+	rxd_step_size = 0x1;
+	rxc_step_size = 0x8;
+	init_toggle_data = 0x00000055;
+	training_word = 0x000000AC;
+
+	TRGMII_7530_TX_base = TRGMII_7530_base + 0x50;
+
+	/* pr_err("Calibration begin ........\n"); */
+	val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x40) | 0x80000000;
+	mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x40);
+	read_data = mt7530_mdio_r32(gsw, 0x7a10);
+	/* pr_err("TRGMII_7530_RD_0 is %x\n", read_data); */
+
+	read_data = mt7530_mdio_r32(gsw, TRGMII_7530_base + 0x04);
+	read_data &= 0x3fffffff;
+	mt7530_mdio_w32(gsw, TRGMII_7530_base + 0x04, read_data);	/* RX clock gating in MT7530 */
+
+	read_data = mt7530_mdio_r32(gsw, TRGMII_7530_base + 0x78);
+	read_data |= 0x00002000;
+	mt7530_mdio_w32(gsw, TRGMII_7530_base + 0x78, read_data);	/* Set TX OE edge in  MT7530 */
+
+	read_data = mt7530_mdio_r32(gsw, TRGMII_7530_base);
+	read_data |= 0x80000000;
+	mt7530_mdio_w32(gsw, TRGMII_7530_base, read_data);	/* Assert RX  reset in MT7530 */
+
+	read_data = mt7530_mdio_r32(gsw, TRGMII_7530_base);
+	read_data &= 0x7fffffff;
+	mt7530_mdio_w32(gsw, TRGMII_7530_base, read_data);	/* Release RX reset in MT7530 */
+
+	read_data = mt7530_mdio_r32(gsw, TRGMII_7530_base + 0x04);
+	read_data |= 0xC0000000;
+	mt7530_mdio_w32(gsw, TRGMII_7530_base + 0x04, read_data);	/* Disable RX clock gating in MT7530 */
+
+	/* pr_err("Enable Training Mode in MT7623\n"); */
+	/*Enable Training Mode in MT7623 */
+	val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x40) | 0x80000000;
+	mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x40);
+	if (gsw->trgmii_force == 2000) {
+		val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x40) | 0xC0000000;
+		mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x40);
+	} else {
+		val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x40) | 0x80000000;
+		mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x40);
+	}
+	val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x078) & 0xfffff0ff;
+	mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x078);
+	val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x50) & 0xfffff0ff;
+	mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x50);
+	val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x58) & 0xfffff0ff;
+	mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x58);
+	val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x60) & 0xfffff0ff;
+	mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x60);
+	val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x68) & 0xfffff0ff;
+	mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x68);
+	val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x70) & 0xfffff0ff;
+	mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x70);
+	val = mtk_switch_r32(gsw, TRGMII_7623_base + 0x78) & 0x00000800;
+	mtk_switch_w32(gsw, val, TRGMII_7623_base + 0x78);
+	err_total_flag = 0;
+	/* pr_err("Adjust RXC delay in MT7530\n"); */
+	read_data = 0x0;
+	while (err_total_flag == 0 && (read_data != 0x68)) {
+		/* pr_err("2nd Enable EDGE CHK in MT7530\n"); */
+		/* Enable EDGE CHK in MT7530 */
+		for (i = 0; i < 5; i++) {
+			read_data =
+			    mt7530_mdio_r32(gsw, TRGMII_7530_RD_0 + i * 8);
+			read_data |= 0x40000000;
+			read_data &= 0x4fffffff;
+			mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8,
+					read_data);
+			wait_loop(gsw);
+			/* pr_err("2nd Disable EDGE CHK in MT7530\n"); */
+			err_cnt[i] =
+			    mt7530_mdio_r32(gsw, TRGMII_7530_RD_0 + i * 8);
+			/* pr_err("***** MT7530 %dth bit ERR_CNT =%x\n",i, err_cnt[i]); */
+			/* pr_err("MT7530 %dth bit ERR_CNT =%x\n",i, err_cnt[i]); */
+			err_cnt[i] >>= 8;
+			err_cnt[i] &= 0x0000ff0f;
+			rd_wd = err_cnt[i] >> 8;
+			rd_wd &= 0x000000ff;
+			err_cnt[i] &= 0x0000000f;
+			/* read_data = mt7530_mdio_r32(gsw,0x7a10,&read_data); */
+			if (err_cnt[i] != 0) {
+				err_flag[i] = 1;
+			} else if (rd_wd != 0x55) {
+				err_flag[i] = 1;
+			} else {
+				err_flag[i] = 0;
+			}
+			if (i == 0) {
+				err_total_flag = err_flag[i];
+			} else {
+				err_total_flag = err_flag[i] & err_total_flag;
+			}
+			/* Disable EDGE CHK in MT7530 */
+			read_data =
+			    mt7530_mdio_r32(gsw, TRGMII_7530_RD_0 + i * 8);
+			read_data |= 0x40000000;
+			read_data &= 0x4fffffff;
+			mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8,
+					read_data);
+			wait_loop(gsw);
+		}
+		/*Adjust RXC delay */
+		if (err_total_flag == 0) {
+			read_data = mt7530_mdio_r32(gsw, TRGMII_7530_base);
+			read_data |= 0x80000000;
+			mt7530_mdio_w32(gsw, TRGMII_7530_base, read_data);	/* Assert RX  reset in MT7530 */
+
+			read_data =
+			    mt7530_mdio_r32(gsw, TRGMII_7530_base + 0x04);
+			read_data &= 0x3fffffff;
+			mt7530_mdio_w32(gsw, TRGMII_7530_base + 0x04, read_data);	/* RX clock gating in MT7530 */
+
+			read_data = mt7530_mdio_r32(gsw, TRGMII_7530_base);
+			tmp = read_data;
+			tmp &= 0x0000007f;
+			tmp += rxc_step_size;
+			/* pr_err("Current rxc delay = %d\n", tmp); */
+			read_data &= 0xffffff80;
+			read_data |= tmp;
+			mt7530_mdio_w32(gsw, TRGMII_7530_base, read_data);
+			read_data = mt7530_mdio_r32(gsw, TRGMII_7530_base);
+			/* pr_err("Current RXC delay = %x\n", read_data); */
+
+			read_data = mt7530_mdio_r32(gsw, TRGMII_7530_base);
+			read_data &= 0x7fffffff;
+			mt7530_mdio_w32(gsw, TRGMII_7530_base, read_data);	/* Release RX reset in MT7530 */
+
+			read_data =
+			    mt7530_mdio_r32(gsw, TRGMII_7530_base + 0x04);
+			read_data |= 0xc0000000;
+			mt7530_mdio_w32(gsw, TRGMII_7530_base + 0x04, read_data);	/* Disable RX clock gating in MT7530 */
+			pr_err("####### MT7530 RXC delay is %d\n", tmp);
+		}
+		read_data = tmp;
+	}
+	pr_err("Finish RXC Adjustment while loop\n");
+
+	/* pr_err("Read RD_WD MT7530\n"); */
+	/* Read RD_WD MT7530 */
+	for (i = 0; i < 5; i++) {
+		rd_tap = 0;
+		while (err_flag[i] != 0 && rd_tap != 128) {
+			/* Enable EDGE CHK in MT7530 */
+			read_data =
+			    mt7530_mdio_r32(gsw, TRGMII_7530_RD_0 + i * 8);
+			read_data |= 0x40000000;
+			read_data &= 0x4fffffff;
+			mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8,
+					read_data);
+			wait_loop(gsw);
+			err_cnt[i] = (read_data >> 8) & 0x0000000f;
+			rd_wd = (read_data >> 16) & 0x000000ff;
+			if (err_cnt[i] != 0 || rd_wd != 0x55) {
+				err_flag[i] = 1;
+			} else {
+				err_flag[i] = 0;
+			}
+			if (err_flag[i] != 0) {
+				rd_tap = (read_data & 0x0000007f) + rxd_step_size;	/* Add RXD delay in MT7530 */
+				read_data = (read_data & 0xffffff80) | rd_tap;
+				mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8,
+						read_data);
+				tap_a[i] = rd_tap;
+			} else {
+				tap_a[i] = (read_data & 0x0000007f);	/* Record the min delay TAP_A */
+				rd_tap = tap_a[i] + 0x4;
+				read_data = (read_data & 0xffffff80) | rd_tap;
+				mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8,
+						read_data);
+			}
+
+			/* Disable EDGE CHK in MT7530 */
+			read_data =
+			    mt7530_mdio_r32(gsw, TRGMII_7530_RD_0 + i * 8);
+			read_data |= 0x40000000;
+			read_data &= 0x4fffffff;
+			mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8,
+					read_data);
+			wait_loop(gsw);
+
+		}
+		pr_err("MT7530 %dth bit  Tap_a = %d\n", i, tap_a[i]);
+	}
+
+	/* pr_err("Last While Loop\n"); */
+	for (i = 0; i < 5; i++) {
+		rd_tap = 0;
+		while (err_flag[i] == 0 && (rd_tap != 128)) {
+			/* Enable EDGE CHK in MT7530 */
+			read_data = mt7530_mdio_r32(gsw, TRGMII_7530_RD_0 + i * 8);
+			read_data |= 0x40000000;
+			read_data &= 0x4fffffff;
+			mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8,
+					read_data);
+			wait_loop(gsw);
+			err_cnt[i] = (read_data >> 8) & 0x0000000f;
+			rd_wd = (read_data >> 16) & 0x000000ff;
+			if (err_cnt[i] != 0 || rd_wd != 0x55)
+				err_flag[i] = 1;
+			else
+				err_flag[i] = 0;
+
+			if (err_flag[i] == 0 && (rd_tap != 128)) {
+				/* Add RXD delay in MT7530 */
+				rd_tap = (read_data & 0x0000007f) + rxd_step_size;
+				read_data = (read_data & 0xffffff80) | rd_tap;
+				mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8,
+						read_data);
+			}
+			/* Disable EDGE CHK in MT7530 */
+			read_data =
+			    mt7530_mdio_r32(gsw, TRGMII_7530_RD_0 + i * 8);
+			read_data |= 0x40000000;
+			read_data &= 0x4fffffff;
+			mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8,
+					read_data);
+			wait_loop(gsw);
+		}
+		tap_b[i] = rd_tap;	/* - rxd_step_size; */
+		pr_err("MT7530 %dth bit  Tap_b = %d\n", i, tap_b[i]);
+		/* Calculate RXD delay = (TAP_A + TAP_B)/2 */
+		final_tap[i] = (tap_a[i] + tap_b[i]) / 2;	
+		/* pr_err("########****** MT7530 %dth bit Final Tap = %d\n", i, final_tap[i]); */
+
+		read_data = (read_data & 0xffffff80) | final_tap[i];
+		mt7530_mdio_w32(gsw, TRGMII_7530_RD_0 + i * 8, read_data);
+	}
+
+	if (gsw->trgmii_force == 2000)
+		mtk_switch_m32(gsw, 0x7fffffff, 0, TRGMII_7623_base + 0x40);
+	else
+		mtk_switch_m32(gsw, 0x3fffffff, 0, TRGMII_7623_base + 0x40);
+
+}
+
+static void mt7530_trgmii_clock_setting(struct mt7620_gsw *gsw, u32 xtal_mode)
+{
+
+	u32 regValue;
+
+	/* TRGMII Clock */
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x410);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x1);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x404);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+
+	if (xtal_mode == 1) {
+		/* 25MHz */
+		if (gsw->trgmii_force == 2600)
+			/* 325MHz */
+			_mtk_mdio_write(gsw->eth, 0, 14, 0x1a00);
+		else if (gsw->trgmii_force == 2000)
+			/* 250MHz */
+			_mtk_mdio_write(gsw->eth, 0, 14, 0x1400);
+	} else if (xtal_mode == 2) {
+		/* 40MHz */
+		if (gsw->trgmii_force == 2600)
+			/* 325MHz */
+			_mtk_mdio_write(gsw->eth, 0, 14, 0x1040);
+		else if (gsw->trgmii_force == 2000)
+			/* 250MHz */
+			_mtk_mdio_write(gsw->eth, 0, 14, 0x0c80);
+	}
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x405);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x0);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x409);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	if (xtal_mode == 1)
+		/* 25MHz */
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x0057);
+	else
+		/* 40MHz */
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x0087);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x40a);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	if (xtal_mode == 1)
+		/* 25MHz */
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x0057);
+	else
+		/* 40MHz */
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x0087);
+
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x403);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x1800);
+
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x403);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x1c00);
+
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x401);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0xc020);
+
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x406);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0xa030);
+
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x406);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0xa038);
+
+//	udelay(120);		/* for MT7623 bring up test */
+
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x410);
+	_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x3);
+
+	regValue = mt7530_mdio_r32(gsw, 0x7830);
+	regValue &= 0xFFFFFFFC;
+	regValue |= 0x00000001;
+	mt7530_mdio_w32(gsw, 0x7830, regValue);
+
+	regValue = mt7530_mdio_r32(gsw, 0x7a40);
+	regValue &= ~(0x1 << 30);
+	regValue &= ~(0x1 << 28);
+	mt7530_mdio_w32(gsw, 0x7a40, regValue);
+
+	mt7530_mdio_w32(gsw, 0x7a78, 0x55);
+//	udelay(100);		/* for mt7623 bring up test */
+
+	mtk_switch_m32(gsw, 0x7fffffff, 0, 0x300);
+
+	trgmii_calibration_7623(gsw);
+	trgmii_calibration_7530(gsw);
+
+	mtk_switch_m32(gsw, 0, 0x80000000, 0x300);
+	mtk_switch_m32(gsw, 0, 0x7fffffff, 0x300);
+
+	/*MT7530 RXC reset */
+	regValue = mt7530_mdio_r32(gsw, 0x7a00);
+	regValue |= (0x1 << 31);
+	mt7530_mdio_w32(gsw, 0x7a00, regValue);
+	mdelay(1);
+	regValue &= ~(0x1 << 31);
+	mt7530_mdio_w32(gsw, 0x7a00, regValue);
+	mdelay(100);
+}
+
+static void mt7623_hw_init(struct mtk_eth *eth, struct mt7620_gsw *gsw, struct device_node *np)
+{
+       u32     i;
+       u32     val;
+       u32     xtal_mode;
+
+	regmap_update_bits(gsw->ethsys, ETHSYS_CLKCFG0,
+			   ETHSYS_TRGMII_CLK_SEL362_5,
+			   ETHSYS_TRGMII_CLK_SEL362_5);
+
+	/* reset the TRGMII core */
+	mtk_switch_m32(gsw, 0, INTF_MODE_TRGMII, GSW_INTF_MODE);
+	/* Assert MT7623 RXC reset */
+	mtk_switch_m32(gsw, 0, TRGMII_RCK_CTRL_RX_RST, GSW_TRGMII_RCK_CTRL);
+
+	/* Hardware reset Switch */
+	device_reset(eth->dev);
+
+	/* Wait for Switch Reset Completed*/
+	for (i = 0; i < 100; i++) {
+		mdelay(10);
+		if (mt7530_mdio_r32(gsw, MT7530_HWTRAP))
+			break;
+	}
+
+	/* turn off all PHYs */
+	for (i = 0; i <= 4; i++) {
+		val = _mtk_mdio_read(gsw->eth, i, 0x0);
+		val |= BIT(11);
+		_mtk_mdio_write(gsw->eth, i, 0x0, val);
+	}
+
+	/* reset the switch */
+	mt7530_mdio_w32(gsw, MT7530_SYS_CTRL,
+			SYS_CTRL_SW_RST | SYS_CTRL_REG_RST);
+	udelay(100);
+
+	/* GE1, Force 1000M/FD, FC ON */
+	mt7530_mdio_w32(gsw, MT7530_PMCR_P(6), PMCR_FIXED_LINK_FC);
+
+	/* GE2, Force 1000M/FD, FC ON */
+	mt7530_mdio_w32(gsw, MT7530_PMCR_P(5), PMCR_FIXED_LINK_FC);
+
+	/* Enable Port 6, P5 as GMAC5, P5 disable */
+	val = mt7530_mdio_r32(gsw, MT7530_MHWTRAP);
+	if (gsw->eth->mac[0] &&
+	    of_phy_is_fixed_link(gsw->eth->mac[0]->of_node))
+		/* Enable Port 6 */
+		val &= ~MHWTRAP_P6_DIS;
+	else
+		/* Disable Port 6 */
+		val |= MHWTRAP_P6_DIS;
+	if (gsw->eth->mac[1] &&
+	    of_phy_is_fixed_link(gsw->eth->mac[1]->of_node)) {
+		/* Enable Port 5 */
+		val &= ~MHWTRAP_P5_DIS;
+		/* Port 5 as PHY */
+		val &= ~MHWTRAP_P5_MAC_SEL;
+	} else {
+		/* Disable Port 5 */
+		val |= MHWTRAP_P5_DIS;
+		/* Port 5 as GMAC */
+		val |= MHWTRAP_P5_MAC_SEL;
+		val |= BIT(7);
+		mt7530_mdio_w32(gsw, MT7530_PMCR_P(5), 0x8000);
+	}
+	/* gphy to port 0/4 */
+	if (gsw->wllll)
+		val |= BIT(20);
+	else
+		val &= ~BIT(20);
+
+	/* Set MT7530 phy direct access mode**/
+	val &= ~MHWTRAP_PHY_ACCESS;
+	/* manual override of HW-Trap */
+	val |= MHWTRAP_MANUAL;
+	mt7530_mdio_w32(gsw, MT7530_MHWTRAP, val);
+	dev_info(gsw->dev, "Setting MHWTRAP to 0x%08x\n", val);
+
+	val = mt7530_mdio_r32(gsw, 0x7800);
+	val = (val >> 9) & 0x3;
+	if (val == 0x3) {
+		xtal_mode = 1;
+		/* 25Mhz Xtal - do nothing */
+	} else if (val == 0x2) {
+		/* 40Mhz */
+		xtal_mode = 2;
+
+		/* disable MT7530 core clock */
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x410);
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x0);
+
+		/* disable MT7530 PLL */
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x40d);
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x2020);
+
+		/* for MT7530 core clock = 500Mhz */
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x40e);
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x119);
+
+		/* enable MT7530 PLL */
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x40d);
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x2820);
+
+		udelay(20);
+
+		/* enable MT7530 core clock */
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x1f);
+		_mtk_mdio_write(gsw->eth, 0, 14, 0x410);
+		_mtk_mdio_write(gsw->eth, 0, 13, 0x401f);
+	} else {
+		xtal_mode = 3;
+		/* 20Mhz Xtal - TODO */
+	}
+
+	/* RGMII */
+	_mtk_mdio_write(gsw->eth, 0, 14, 0x1);
+
+	/* set MT7530 central align */
+	val = mt7530_mdio_r32(gsw, 0x7830);
+	val &= ~1;
+	val |= 1<<1;
+	mt7530_mdio_w32(gsw, 0x7830, val);
+
+	val = mt7530_mdio_r32(gsw, 0x7a40);
+	val &= ~(1<<30);
+	mt7530_mdio_w32(gsw, 0x7a40, val);
+
+	mt7530_mdio_w32(gsw, 0x7a78, 0x855);
+
+	/* delay setting for 10/1000M */
+	mt7530_mdio_w32(gsw, 0x7b00, 0x104);
+	mt7530_mdio_w32(gsw, 0x7b04, 0x10);
+
+	/* lower Tx Driving */
+	mt7530_mdio_w32(gsw, 0x7a54, 0x88);
+	mt7530_mdio_w32(gsw, 0x7a5c, 0x88);
+	mt7530_mdio_w32(gsw, 0x7a64, 0x88);
+	mt7530_mdio_w32(gsw, 0x7a6c, 0x88);
+	mt7530_mdio_w32(gsw, 0x7a74, 0x88);
+	mt7530_mdio_w32(gsw, 0x7a7c, 0x88);
+	mt7530_mdio_w32(gsw, 0x7810, 0x11);
+
+	/* Set MT7623/MT7683 TX Driving */
+	mtk_switch_w32(gsw, 0x88, 0x354);
+	mtk_switch_w32(gsw, 0x88, 0x35c);
+	mtk_switch_w32(gsw, 0x88, 0x364);
+	mtk_switch_w32(gsw, 0x88, 0x36c);
+	mtk_switch_w32(gsw, 0x88, 0x374);
+	mtk_switch_w32(gsw, 0x88, 0x37c);
+
+	/* Set GE2 driving and slew rate */
+	regmap_write(gsw->pctl, 0xF00, 0xe00);
+	/* set GE2 TDSEL */
+	regmap_write(gsw->pctl, 0x4C0, 0x5);
+	/* set GE2 TUNE */
+	regmap_write(gsw->pctl, 0xED0, 0x0);
+
+	regmap_write(gsw->pctl, 0xb70, 0);
+	regmap_write(gsw->pctl, 0x250, 0xffff);
+	regmap_write(gsw->pctl, 0x260, 0xff);
+	regmap_write(gsw->pctl, 0x380, 0x37);
+	regmap_write(gsw->pctl, 0x390, 0x40);
+
+	mt7530_trgmii_clock_setting(gsw, xtal_mode);
+
+	//LANWANPartition(gsw);
+
+	/* disable EEE */
+	for (i = 0; i <= 4; i++) {
+		_mtk_mdio_write(gsw->eth, i, 13, 0x7);
+		_mtk_mdio_write(gsw->eth, i, 14, 0x3C);
+		_mtk_mdio_write(gsw->eth, i, 13, 0x4007);
+		_mtk_mdio_write(gsw->eth, i, 14, 0x0);
+
+		/* Increase SlvDPSready time */
+		_mtk_mdio_write(gsw->eth, i, 31, 0x52b5);
+		_mtk_mdio_write(gsw->eth, i, 16, 0xafae);
+		_mtk_mdio_write(gsw->eth, i, 18, 0x2f);
+		_mtk_mdio_write(gsw->eth, i, 16, 0x8fae);
+
+		/* Incease post_update_timer */
+		_mtk_mdio_write(gsw->eth, i, 31, 0x3);
+		_mtk_mdio_write(gsw->eth, i, 17, 0x4b);
+
+		/* Adjust 100_mse_threshold */
+		_mtk_mdio_write(gsw->eth, i, 13, 0x1e);
+		_mtk_mdio_write(gsw->eth, i, 14, 0x123);
+		_mtk_mdio_write(gsw->eth, i, 13, 0x401e);
+		_mtk_mdio_write(gsw->eth, i, 14, 0xffff);
+
+		/* Disable mcc */
+		_mtk_mdio_write(gsw->eth, i, 13, 0x1e);
+		_mtk_mdio_write(gsw->eth, i, 14, 0xa6);
+		_mtk_mdio_write(gsw->eth, i, 13, 0x401e);
+		_mtk_mdio_write(gsw->eth, i, 14, 0x300);
+
+		/* Disable HW auto downshift*/
+		_mtk_mdio_write(gsw->eth, i, 31, 0x1);
+		val = _mtk_mdio_read(gsw->eth, i, 0x14);
+		val &= ~(1<<4);
+		_mtk_mdio_write(gsw->eth, i, 0x14, val);
+	}
+
+	/* turn on all PHYs */
+	for (i = 0; i <= 4; i++) {
+		val = _mtk_mdio_read(gsw->eth, i, 0);
+		val &= ~BIT(11);
+		_mtk_mdio_write(gsw->eth, i, 0, val);
+	}
+
+	/* enable irq */
+	mt7530_mdio_m32(gsw, 0, TOP_SIG_CTRL_NORMAL, MT7530_TOP_SIG_CTRL);
+}
+
+static const struct of_device_id mediatek_gsw_match[] = {
+	{ .compatible = "mediatek,mt7623-gsw" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, mediatek_gsw_match);
+
+int mtk_gsw_init(struct mtk_eth *eth)
+{
+	struct device_node *np = eth->switch_np;
+	struct platform_device *pdev = of_find_device_by_node(np);
+	struct mt7620_gsw *gsw;
+
+	if (!pdev)
+		return -ENODEV;
+
+	if (!of_device_is_compatible(np, mediatek_gsw_match->compatible))
+		return -EINVAL;
+
+	gsw = platform_get_drvdata(pdev);
+	if (!gsw)
+		return -ENODEV;
+	gsw->eth = eth;
+	eth->sw_priv = gsw;
+
+	mt7623_hw_init(eth, gsw, np);
+
+	if (request_threaded_irq(gsw->irq, gsw_interrupt_mt7623, NULL, 0,
+				 "gsw", eth))
+		pr_err("fail to request irq\n");
+	mt7530_mdio_w32(gsw, 0x7008, 0x1f);
+
+	return 0;
+}
+
+static int mt7623_gsw_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *pctl;
+	int reset_pin, ret;
+	struct mt7620_gsw *gsw;
+	struct regulator *supply;
+
+	gsw = devm_kzalloc(&pdev->dev, sizeof(struct mt7620_gsw), GFP_KERNEL);
+	if (!gsw)
+		return -ENOMEM;
+
+	gsw->dev = &pdev->dev;
+	gsw->trgmii_force = 2000;
+	gsw->irq = irq_of_parse_and_map(np, 0);
+	if (gsw->irq < 0)
+		return -EINVAL;
+
+	gsw->ethsys = syscon_regmap_lookup_by_phandle(np, "mediatek,ethsys");
+	if (IS_ERR(gsw->ethsys))
+		return PTR_ERR(gsw->ethsys);
+
+	reset_pin = of_get_named_gpio(np, "mediatek,reset-pin", 0);
+	if (reset_pin < 0)
+		return reset_pin;
+
+	pctl = of_parse_phandle(np, "mediatek,pctl-regmap", 0);
+	if (IS_ERR(pctl))
+		return PTR_ERR(pctl);
+
+	gsw->pctl = syscon_node_to_regmap(pctl);
+	if (IS_ERR(pctl))
+		return PTR_ERR(pctl);
+
+	ret = devm_gpio_request(&pdev->dev, reset_pin, "mt7530-reset");
+	if (ret)
+		return ret;
+
+	gsw->clk_trgpll = devm_clk_get(&pdev->dev, "trgpll");
+
+	if (IS_ERR(gsw->clk_trgpll))
+		return -ENODEV;
+
+	supply = devm_regulator_get(&pdev->dev, "mt7530");
+	if (IS_ERR(supply))
+		return PTR_ERR(supply);
+
+	regulator_set_voltage(supply, 1000000, 1000000);
+	ret = regulator_enable(supply);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to enable reg-7530: %d\n", ret);
+		return ret;
+	}
+
+	gsw->wllll = of_property_read_bool(np, "mediatek,wllll");
+
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
+
+	ret = clk_set_rate(gsw->clk_trgpll, 500000000);
+	if (ret)
+		return ret;
+
+	regmap_write(gsw->ethsys, 0x34, 0x800000);
+	regmap_write(gsw->ethsys, 0x34, 0x0);
+
+	clk_prepare_enable(gsw->clk_trgpll);
+
+	gpio_direction_output(reset_pin, 0);
+	udelay(1000);
+	gpio_set_value(reset_pin, 1);
+	mdelay(100);
+
+	platform_set_drvdata(pdev, gsw);
+
+	return 0;
+}
+
+static int mt7623_gsw_remove(struct platform_device *pdev)
+{
+	struct mt7620_gsw *gsw = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(gsw->clk_trgpll);
+
+	pm_runtime_put_sync(&pdev->dev);
+        pm_runtime_disable(&pdev->dev);
+
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static struct platform_driver gsw_driver = {
+	.probe = mt7623_gsw_probe,
+	.remove = mt7623_gsw_remove,
+	.driver = {
+		.name = "mt7623-gsw",
+		.owner = THIS_MODULE,
+		.of_match_table = mediatek_gsw_match,
+	},
+};
+
+module_platform_driver(gsw_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
+MODULE_DESCRIPTION("GBit switch driver for Mediatek MT7623 SoC");
diff --git a/drivers/net/ethernet/mediatek/mt7530.c b/drivers/net/ethernet/mediatek/mt7530.c
new file mode 100644
index 0000000..2e9d280
--- /dev/null
+++ b/drivers/net/ethernet/mediatek/mt7530.c
@@ -0,0 +1,808 @@
+/*
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/if.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/if_ether.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/netlink.h>
+#include <linux/bitops.h>
+#include <net/genetlink.h>
+#include <linux/switch.h>
+#include <linux/delay.h>
+#include <linux/phy.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/lockdep.h>
+#include <linux/workqueue.h>
+#include <linux/of_device.h>
+
+#include "mt7530.h"
+
+#define MT7530_CPU_PORT		6
+#define MT7530_NUM_PORTS	8
+#define MT7530_NUM_VLANS	16
+#define MT7530_MAX_VID		4095
+#define MT7530_MIN_VID		0
+
+/* registers */
+#define REG_ESW_VLAN_VTCR		0x90
+#define REG_ESW_VLAN_VAWD1		0x94
+#define REG_ESW_VLAN_VAWD2		0x98
+#define REG_ESW_VLAN_VTIM(x)	(0x100 + 4 * ((x) / 2))
+
+#define REG_ESW_VLAN_VAWD1_IVL_MAC	BIT(30)
+#define REG_ESW_VLAN_VAWD1_VTAG_EN	BIT(28)
+#define REG_ESW_VLAN_VAWD1_VALID	BIT(0)
+
+/* vlan egress mode */
+enum {
+	ETAG_CTRL_UNTAG	= 0,
+	ETAG_CTRL_TAG	= 2,
+	ETAG_CTRL_SWAP	= 1,
+	ETAG_CTRL_STACK	= 3,
+};
+
+#define REG_ESW_PORT_PCR(x)	(0x2004 | ((x) << 8))
+#define REG_ESW_PORT_PVC(x)	(0x2010 | ((x) << 8))
+#define REG_ESW_PORT_PPBV1(x)	(0x2014 | ((x) << 8))
+
+#define REG_HWTRAP		0x7804
+
+#define MIB_DESC(_s , _o, _n)   \
+	{                       \
+		.size = (_s),   \
+		.offset = (_o), \
+		.name = (_n),   \
+	}
+
+struct mt7xxx_mib_desc {
+	unsigned int size;
+	unsigned int offset;
+	const char *name;
+};
+
+#define MT7621_MIB_COUNTER_BASE	0x4000
+#define MT7621_MIB_COUNTER_PORT_OFFSET	0x100
+#define MT7621_STATS_TDPC	0x00
+#define MT7621_STATS_TCRC	0x04
+#define MT7621_STATS_TUPC	0x08
+#define MT7621_STATS_TMPC	0x0C
+#define MT7621_STATS_TBPC	0x10
+#define MT7621_STATS_TCEC	0x14
+#define MT7621_STATS_TSCEC	0x18
+#define MT7621_STATS_TMCEC	0x1C
+#define MT7621_STATS_TDEC	0x20
+#define MT7621_STATS_TLCEC	0x24
+#define MT7621_STATS_TXCEC	0x28
+#define MT7621_STATS_TPPC	0x2C
+#define MT7621_STATS_TL64PC	0x30
+#define MT7621_STATS_TL65PC	0x34
+#define MT7621_STATS_TL128PC	0x38
+#define MT7621_STATS_TL256PC	0x3C
+#define MT7621_STATS_TL512PC	0x40
+#define MT7621_STATS_TL1024PC	0x44
+#define MT7621_STATS_TOC	0x48
+#define MT7621_STATS_RDPC	0x60
+#define MT7621_STATS_RFPC	0x64
+#define MT7621_STATS_RUPC	0x68
+#define MT7621_STATS_RMPC	0x6C
+#define MT7621_STATS_RBPC	0x70
+#define MT7621_STATS_RAEPC	0x74
+#define MT7621_STATS_RCEPC	0x78
+#define MT7621_STATS_RUSPC	0x7C
+#define MT7621_STATS_RFEPC	0x80
+#define MT7621_STATS_ROSPC	0x84
+#define MT7621_STATS_RJEPC	0x88
+#define MT7621_STATS_RPPC	0x8C
+#define MT7621_STATS_RL64PC	0x90
+#define MT7621_STATS_RL65PC	0x94
+#define MT7621_STATS_RL128PC	0x98
+#define MT7621_STATS_RL256PC	0x9C
+#define MT7621_STATS_RL512PC	0xA0
+#define MT7621_STATS_RL1024PC	0xA4
+#define MT7621_STATS_ROC	0xA8
+#define MT7621_STATS_RDPC_CTRL	0xB0
+#define MT7621_STATS_RDPC_ING	0xB4
+#define MT7621_STATS_RDPC_ARL	0xB8
+
+static const struct mt7xxx_mib_desc mt7621_mibs[] = {
+	MIB_DESC(1, MT7621_STATS_TDPC, "TxDrop"),
+	MIB_DESC(1, MT7621_STATS_TCRC, "TxCRC"),
+	MIB_DESC(1, MT7621_STATS_TUPC, "TxUni"),
+	MIB_DESC(1, MT7621_STATS_TMPC, "TxMulti"),
+	MIB_DESC(1, MT7621_STATS_TBPC, "TxBroad"),
+	MIB_DESC(1, MT7621_STATS_TCEC, "TxCollision"),
+	MIB_DESC(1, MT7621_STATS_TSCEC, "TxSingleCol"),
+	MIB_DESC(1, MT7621_STATS_TMCEC, "TxMultiCol"),
+	MIB_DESC(1, MT7621_STATS_TDEC, "TxDefer"),
+	MIB_DESC(1, MT7621_STATS_TLCEC, "TxLateCol"),
+	MIB_DESC(1, MT7621_STATS_TXCEC, "TxExcCol"),
+	MIB_DESC(1, MT7621_STATS_TPPC, "TxPause"),
+	MIB_DESC(1, MT7621_STATS_TL64PC, "Tx64Byte"),
+	MIB_DESC(1, MT7621_STATS_TL65PC, "Tx65Byte"),
+	MIB_DESC(1, MT7621_STATS_TL128PC, "Tx128Byte"),
+	MIB_DESC(1, MT7621_STATS_TL256PC, "Tx256Byte"),
+	MIB_DESC(1, MT7621_STATS_TL512PC, "Tx512Byte"),
+	MIB_DESC(1, MT7621_STATS_TL1024PC, "Tx1024Byte"),
+	MIB_DESC(2, MT7621_STATS_TOC, "TxByte"),
+	MIB_DESC(1, MT7621_STATS_RDPC, "RxDrop"),
+	MIB_DESC(1, MT7621_STATS_RFPC, "RxFiltered"),
+	MIB_DESC(1, MT7621_STATS_RUPC, "RxUni"),
+	MIB_DESC(1, MT7621_STATS_RMPC, "RxMulti"),
+	MIB_DESC(1, MT7621_STATS_RBPC, "RxBroad"),
+	MIB_DESC(1, MT7621_STATS_RAEPC, "RxAlignErr"),
+	MIB_DESC(1, MT7621_STATS_RCEPC, "RxCRC"),
+	MIB_DESC(1, MT7621_STATS_RUSPC, "RxUnderSize"),
+	MIB_DESC(1, MT7621_STATS_RFEPC, "RxFragment"),
+	MIB_DESC(1, MT7621_STATS_ROSPC, "RxOverSize"),
+	MIB_DESC(1, MT7621_STATS_RJEPC, "RxJabber"),
+	MIB_DESC(1, MT7621_STATS_RPPC, "RxPause"),
+	MIB_DESC(1, MT7621_STATS_RL64PC, "Rx64Byte"),
+	MIB_DESC(1, MT7621_STATS_RL65PC, "Rx65Byte"),
+	MIB_DESC(1, MT7621_STATS_RL128PC, "Rx128Byte"),
+	MIB_DESC(1, MT7621_STATS_RL256PC, "Rx256Byte"),
+	MIB_DESC(1, MT7621_STATS_RL512PC, "Rx512Byte"),
+	MIB_DESC(1, MT7621_STATS_RL1024PC, "Rx1024Byte"),
+	MIB_DESC(2, MT7621_STATS_ROC, "RxByte"),
+	MIB_DESC(1, MT7621_STATS_RDPC_CTRL, "RxCtrlDrop"),
+	MIB_DESC(1, MT7621_STATS_RDPC_ING, "RxIngDrop"),
+	MIB_DESC(1, MT7621_STATS_RDPC_ARL, "RxARLDrop")
+};
+
+enum {
+	/* Global attributes. */
+	MT7530_ATTR_ENABLE_VLAN,
+};
+
+struct mt7530_port_entry {
+	u16	pvid;
+};
+
+struct mt7530_vlan_entry {
+	u16	vid;
+	u8	member;
+	u8	etags;
+};
+
+struct mt7530_priv {
+	void __iomem		*base;
+	struct mii_bus		*bus;
+	struct switch_dev	swdev;
+
+	bool			global_vlan_enable;
+	struct mt7530_vlan_entry	vlan_entries[MT7530_NUM_VLANS];
+	struct mt7530_port_entry	port_entries[MT7530_NUM_PORTS];
+};
+
+struct mt7530_mapping {
+	char	*name;
+	u16	pvids[MT7530_NUM_PORTS];
+	u8	members[MT7530_NUM_VLANS];
+	u8	etags[MT7530_NUM_VLANS];
+	u16	vids[MT7530_NUM_VLANS];
+} mt7530_defaults[] = {
+	{
+		.name = "llllw",
+		.pvids = { 1, 1, 1, 1, 2, 1, 1 },
+		.members = { 0, 0x6f, 0x50 },
+		.etags = { 0, 0x40, 0x40 },
+		.vids = { 0, 1, 2 },
+	}, {
+		.name = "wllll",
+		.pvids = { 2, 1, 1, 1, 1, 1, 1 },
+		.members = { 0, 0x7e, 0x41 },
+		.etags = { 0, 0x40, 0x40 },
+		.vids = { 0, 1, 2 },
+	},
+};
+
+struct mt7530_mapping*
+mt7530_find_mapping(struct device_node *np)
+{
+	const char *map;
+	int i;
+
+	if (of_property_read_string(np, "mediatek,portmap", &map))
+		return NULL;
+
+	for (i = 0; i < ARRAY_SIZE(mt7530_defaults); i++)
+		if (!strcmp(map, mt7530_defaults[i].name))
+			return &mt7530_defaults[i];
+
+	return NULL;
+}
+
+static void
+mt7530_apply_mapping(struct mt7530_priv *mt7530, struct mt7530_mapping *map)
+{
+	int i = 0;
+
+	for (i = 0; i < MT7530_NUM_PORTS; i++)
+		mt7530->port_entries[i].pvid = map->pvids[i];
+
+	for (i = 0; i < MT7530_NUM_VLANS; i++) {
+		mt7530->vlan_entries[i].member = map->members[i];
+		mt7530->vlan_entries[i].etags = map->etags[i];
+		mt7530->vlan_entries[i].vid = map->vids[i];
+	}
+}
+
+static int
+mt7530_reset_switch(struct switch_dev *dev)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+	int i;
+
+	memset(eth->port_entries, 0, sizeof(eth->port_entries));
+	memset(eth->vlan_entries, 0, sizeof(eth->vlan_entries));
+
+	/* set default vid of each vlan to the same number of vlan, so the vid
+	 * won't need be set explicitly.
+	 */
+	for (i = 0; i < MT7530_NUM_VLANS; i++) {
+		eth->vlan_entries[i].vid = i;
+	}
+
+	return 0;
+}
+
+static int
+mt7530_get_vlan_enable(struct switch_dev *dev,
+			   const struct switch_attr *attr,
+			   struct switch_val *val)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+
+	val->value.i = eth->global_vlan_enable;
+
+	return 0;
+}
+
+static int
+mt7530_set_vlan_enable(struct switch_dev *dev,
+			   const struct switch_attr *attr,
+			   struct switch_val *val)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+
+	eth->global_vlan_enable = val->value.i != 0;
+
+	return 0;
+}
+
+static u32
+mt7530_r32(struct mt7530_priv *eth, u32 reg)
+{
+	u32 val;
+	if (eth->bus) {
+		u16 high, low;
+
+		mdiobus_write(eth->bus, 0x1f, 0x1f, (reg >> 6) & 0x3ff);
+		low = mdiobus_read(eth->bus, 0x1f, (reg >> 2) & 0xf);
+		high = mdiobus_read(eth->bus, 0x1f, 0x10);
+
+		return (high << 16) | (low & 0xffff);
+	}
+
+	val = ioread32(eth->base + reg);
+	pr_debug("MT7530 MDIO Read [%04x]=%08x\n", reg, val);
+
+	return val;
+}
+
+static void
+mt7530_w32(struct mt7530_priv *eth, u32 reg, u32 val)
+{
+	if (eth->bus) {
+		mdiobus_write(eth->bus, 0x1f, 0x1f, (reg >> 6) & 0x3ff);
+		mdiobus_write(eth->bus, 0x1f, (reg >> 2) & 0xf,  val & 0xffff);
+		mdiobus_write(eth->bus, 0x1f, 0x10, val >> 16);
+		return;
+	}
+
+	pr_debug("MT7530 MDIO Write[%04x]=%08x\n", reg, val);
+	iowrite32(val, eth->base + reg);
+}
+
+static void
+mt7530_vtcr(struct mt7530_priv *eth, u32 cmd, u32 val)
+{
+	int i;
+
+	mt7530_w32(eth, REG_ESW_VLAN_VTCR, BIT(31) | (cmd << 12) | val);
+
+	for (i = 0; i < 20; i++) {
+		u32 val = mt7530_r32(eth, REG_ESW_VLAN_VTCR);
+
+		if ((val & BIT(31)) == 0)
+			break;
+
+		udelay(1000);
+	}
+	if (i == 20)
+		printk("mt7530: vtcr timeout\n");
+}
+
+static int
+mt7530_get_port_pvid(struct switch_dev *dev, int port, int *val)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+
+	if (port >= MT7530_NUM_PORTS)
+		return -EINVAL;
+
+	*val = mt7530_r32(eth, REG_ESW_PORT_PPBV1(port));
+	*val &= 0xfff;
+
+	return 0;
+}
+
+static int
+mt7530_set_port_pvid(struct switch_dev *dev, int port, int pvid)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+
+	if (port >= MT7530_NUM_PORTS)
+		return -EINVAL;
+
+	if (pvid < MT7530_MIN_VID || pvid > MT7530_MAX_VID)
+		return -EINVAL;
+
+	eth->port_entries[port].pvid = pvid;
+
+	return 0;
+}
+
+static int
+mt7530_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+	u32 member;
+	u32 etags;
+	int i;
+
+	val->len = 0;
+
+	if (val->port_vlan < 0 || val->port_vlan >= MT7530_NUM_VLANS)
+		return -EINVAL;
+
+	mt7530_vtcr(eth, 0, val->port_vlan);
+
+	member = mt7530_r32(eth, REG_ESW_VLAN_VAWD1);
+	member >>= 16;
+	member &= 0xff;
+
+	etags = mt7530_r32(eth, REG_ESW_VLAN_VAWD2);
+
+	for (i = 0; i < MT7530_NUM_PORTS; i++) {
+		struct switch_port *p;
+		int etag;
+
+		if (!(member & BIT(i)))
+			continue;
+
+		p = &val->value.ports[val->len++];
+		p->id = i;
+
+		etag = (etags >> (i * 2)) & 0x3;
+
+		if (etag == ETAG_CTRL_TAG)
+			p->flags |= BIT(SWITCH_PORT_FLAG_TAGGED);
+		else if (etag != ETAG_CTRL_UNTAG)
+			printk("vlan egress tag control neither untag nor tag.\n");
+	}
+
+	return 0;
+}
+
+static int
+mt7530_set_vlan_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+	u8 member = 0;
+	u8 etags = 0;
+	int i;
+
+	if (val->port_vlan < 0 || val->port_vlan >= MT7530_NUM_VLANS ||
+			val->len > MT7530_NUM_PORTS)
+		return -EINVAL;
+
+	for (i = 0; i < val->len; i++) {
+		struct switch_port *p = &val->value.ports[i];
+
+		if (p->id >= MT7530_NUM_PORTS)
+			return -EINVAL;
+
+		member |= BIT(p->id);
+
+		if (p->flags & BIT(SWITCH_PORT_FLAG_TAGGED))
+			etags |= BIT(p->id);
+	}
+	eth->vlan_entries[val->port_vlan].member = member;
+	eth->vlan_entries[val->port_vlan].etags = etags;
+
+	return 0;
+}
+
+static int
+mt7530_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
+		struct switch_val *val)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+	int vlan;
+	u16 vid;
+
+	vlan = val->port_vlan;
+	vid = (u16)val->value.i;
+
+	if (vlan < 0 || vlan >= MT7530_NUM_VLANS)
+		return -EINVAL;
+
+	if (vid < MT7530_MIN_VID || vid > MT7530_MAX_VID)
+		return -EINVAL;
+
+	eth->vlan_entries[vlan].vid = vid;
+	return 0;
+}
+
+static int
+mt7530_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
+		struct switch_val *val)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+	u32 vid;
+	int vlan;
+
+	vlan = val->port_vlan;
+
+	vid = mt7530_r32(eth, REG_ESW_VLAN_VTIM(vlan));
+	if (vlan & 1)
+		vid = vid >> 12;
+	vid &= 0xfff;
+
+	val->value.i = vid;
+	return 0;
+}
+
+static int
+mt7530_apply_config(struct switch_dev *dev)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+	int i, j;
+	u8 tag_ports;
+	u8 untag_ports;
+
+	if (!eth->global_vlan_enable) {
+		for (i = 0; i < MT7530_NUM_PORTS; i++)
+			mt7530_w32(eth, REG_ESW_PORT_PCR(i), 0x00ff0000);
+
+		for (i = 0; i < MT7530_NUM_PORTS; i++)
+			mt7530_w32(eth, REG_ESW_PORT_PVC(i), 0x810000c0);
+
+		return 0;
+	}
+
+	/* set all ports as security mode */
+	for (i = 0; i < MT7530_NUM_PORTS; i++)
+		mt7530_w32(eth, REG_ESW_PORT_PCR(i), 0x00ff0003);
+
+	/* check if a port is used in tag/untag vlan egress mode */
+	tag_ports = 0;
+	untag_ports = 0;
+
+	for (i = 0; i < MT7530_NUM_VLANS; i++) {
+		u8 member = eth->vlan_entries[i].member;
+		u8 etags = eth->vlan_entries[i].etags;
+
+		if (!member)
+			continue;
+
+		for (j = 0; j < MT7530_NUM_PORTS; j++) {
+			if (!(member & BIT(j)))
+				continue;
+
+			if (etags & BIT(j))
+				tag_ports |= 1u << j;
+			else
+				untag_ports |= 1u << j;
+		}
+	}
+
+	/* set all untag-only ports as transparent and the rest as user port */
+	for (i = 0; i < MT7530_NUM_PORTS; i++) {
+		u32 pvc_mode = 0x81000000;
+
+		if (untag_ports & BIT(i) && !(tag_ports & BIT(i)))
+			pvc_mode = 0x810000c0;
+
+		mt7530_w32(eth, REG_ESW_PORT_PVC(i), pvc_mode);
+	}
+
+	for (i = 0; i < MT7530_NUM_VLANS; i++) {
+		u16 vid = eth->vlan_entries[i].vid;
+		u8 member = eth->vlan_entries[i].member;
+		u8 etags = eth->vlan_entries[i].etags;
+		u32 val;
+
+		/* vid of vlan */
+		val = mt7530_r32(eth, REG_ESW_VLAN_VTIM(i));
+		if (i % 2 == 0) {
+			val &= 0xfff000;
+			val |= vid;
+		} else {
+			val &= 0xfff;
+			val |= (vid << 12);
+		}
+		mt7530_w32(eth, REG_ESW_VLAN_VTIM(i), val);
+
+		/* vlan port membership */
+		if (member)
+			mt7530_w32(eth, REG_ESW_VLAN_VAWD1, REG_ESW_VLAN_VAWD1_IVL_MAC |
+				REG_ESW_VLAN_VAWD1_VTAG_EN | (member << 16) |
+				REG_ESW_VLAN_VAWD1_VALID);
+		else
+			mt7530_w32(eth, REG_ESW_VLAN_VAWD1, 0);
+
+		/* egress mode */
+		val = 0;
+		for (j = 0; j < MT7530_NUM_PORTS; j++) {
+			if (etags & BIT(j))
+				val |= ETAG_CTRL_TAG << (j * 2);
+			else
+				val |= ETAG_CTRL_UNTAG << (j * 2);
+		}
+		mt7530_w32(eth, REG_ESW_VLAN_VAWD2, val);
+
+		/* write to vlan table */
+		mt7530_vtcr(eth, 1, i);
+	}
+
+	/* Port Default PVID */
+	for (i = 0; i < MT7530_NUM_PORTS; i++) {
+		u32 val;
+		val = mt7530_r32(eth, REG_ESW_PORT_PPBV1(i));
+		val &= ~0xfff;
+		val |= eth->port_entries[i].pvid;
+		mt7530_w32(eth, REG_ESW_PORT_PPBV1(i), val);
+	}
+
+	return 0;
+}
+
+static int
+mt7530_get_port_link(struct switch_dev *dev,  int port,
+			struct switch_port_link *link)
+{
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+	u32 speed, pmsr;
+
+	if (port < 0 || port >= MT7530_NUM_PORTS)
+		return -EINVAL;
+
+	pmsr = mt7530_r32(eth, 0x3008 + (0x100 * port));
+
+	link->link = pmsr & 1;
+	link->duplex = (pmsr >> 1) & 1;
+	speed = (pmsr >> 2) & 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 const struct switch_attr mt7530_global[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_vlan",
+		.description = "VLAN mode (1:enabled)",
+		.max = 1,
+		.id = MT7530_ATTR_ENABLE_VLAN,
+		.get = mt7530_get_vlan_enable,
+		.set = mt7530_set_vlan_enable,
+	},
+};
+
+static u64 get_mib_counter(struct mt7530_priv *eth, int i, int port)
+{
+	unsigned int port_base;
+	u64 t;
+
+	port_base = MT7621_MIB_COUNTER_BASE +
+		    MT7621_MIB_COUNTER_PORT_OFFSET * port;
+
+	t = mt7530_r32(eth, port_base + mt7621_mibs[i].offset);
+	if (mt7621_mibs[i].size == 2) {
+		u64 hi;
+
+		hi = mt7530_r32(eth, port_base + mt7621_mibs[i].offset + 4);
+		t |= hi << 32;
+	}
+
+	return t;
+}
+
+static int mt7621_sw_get_port_mib(struct switch_dev *dev,
+				  const struct switch_attr *attr,
+				  struct switch_val *val)
+{
+	static char buf[4096];
+	struct mt7530_priv *eth = container_of(dev, struct mt7530_priv, swdev);
+	int i, len = 0;
+
+	if (val->port_vlan >= MT7530_NUM_PORTS)
+		return -EINVAL;
+
+	len += snprintf(buf + len, sizeof(buf) - len,
+			"Port %d MIB counters\n", val->port_vlan);
+
+	for (i = 0; i < sizeof(mt7621_mibs) / sizeof(*mt7621_mibs); ++i) {
+		u64 counter;
+		len += snprintf(buf + len, sizeof(buf) - len,
+				"%-11s: ", mt7621_mibs[i].name);
+		counter = get_mib_counter(eth, i, val->port_vlan);
+		len += snprintf(buf + len, sizeof(buf) - len, "%llu\n",
+				counter);
+	}
+
+	val->value.s = buf;
+	val->len = len;
+	return 0;
+}
+
+static const struct switch_attr mt7621_port[] = {
+	{
+		.type = SWITCH_TYPE_STRING,
+		.name = "mib",
+		.description = "Get MIB counters for port",
+		.get = mt7621_sw_get_port_mib,
+		.set = NULL,
+	},
+};
+
+static const struct switch_attr mt7530_port[] = {
+};
+
+static const struct switch_attr mt7530_vlan[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "vid",
+		.description = "VLAN ID (0-4094)",
+		.set = mt7530_set_vid,
+		.get = mt7530_get_vid,
+		.max = 4094,
+	},
+};
+
+static const struct switch_dev_ops mt7621_ops = {
+	.attr_global = {
+		.attr = mt7530_global,
+		.n_attr = ARRAY_SIZE(mt7530_global),
+	},
+/*	.attr_port = {
+		.attr = mt7621_port,
+		.n_attr = ARRAY_SIZE(mt7621_port),
+	},*/
+	.attr_vlan = {
+		.attr = mt7530_vlan,
+		.n_attr = ARRAY_SIZE(mt7530_vlan),
+	},
+	.get_vlan_ports = mt7530_get_vlan_ports,
+	.set_vlan_ports = mt7530_set_vlan_ports,
+	.get_port_pvid = mt7530_get_port_pvid,
+	.set_port_pvid = mt7530_set_port_pvid,
+	.get_port_link = mt7530_get_port_link,
+	.apply_config = mt7530_apply_config,
+	.reset_switch = mt7530_reset_switch,
+};
+
+static const struct switch_dev_ops mt7530_ops = {
+	.attr_global = {
+		.attr = mt7530_global,
+		.n_attr = ARRAY_SIZE(mt7530_global),
+	},
+	.attr_port = {
+		.attr = mt7530_port,
+		.n_attr = ARRAY_SIZE(mt7530_port),
+	},
+	.attr_vlan = {
+		.attr = mt7530_vlan,
+		.n_attr = ARRAY_SIZE(mt7530_vlan),
+	},
+	.get_vlan_ports = mt7530_get_vlan_ports,
+	.set_vlan_ports = mt7530_set_vlan_ports,
+	.get_port_pvid = mt7530_get_port_pvid,
+	.set_port_pvid = mt7530_set_port_pvid,
+	.get_port_link = mt7530_get_port_link,
+	.apply_config = mt7530_apply_config,
+	.reset_switch = mt7530_reset_switch,
+};
+
+int
+mt7530_probe(struct device *dev, void __iomem *base, struct mii_bus *bus, int vlan)
+{
+	struct switch_dev *swdev;
+	struct mt7530_priv *mt7530;
+	struct mt7530_mapping *map;
+	int ret;
+
+	mt7530 = devm_kzalloc(dev, sizeof(struct mt7530_priv), GFP_KERNEL);
+	if (!mt7530)
+		return -ENOMEM;
+
+	mt7530->base = base;
+	mt7530->bus = bus;
+	mt7530->global_vlan_enable = vlan;
+
+	swdev = &mt7530->swdev;
+	if (bus) {
+		swdev->alias = "mt7530";
+		swdev->name = "mt7530";
+	} else if (IS_ENABLED(CONFIG_MACH_MT7623)) {
+		swdev->alias = "mt7623";
+		swdev->name = "mt7623";
+	} else if (IS_ENABLED(CONFIG_SOC_MT7621)) {
+		swdev->alias = "mt7621";
+		swdev->name = "mt7621";
+	} else {
+		swdev->alias = "mt7620";
+		swdev->name = "mt7620";
+	}
+	swdev->cpu_port = MT7530_CPU_PORT;
+	swdev->ports = MT7530_NUM_PORTS;
+	swdev->vlans = MT7530_NUM_VLANS;
+	if (IS_ENABLED(CONFIG_SOC_MT7621) || IS_ENABLED(CONFIG_MACH_MT7623))
+		swdev->ops = &mt7621_ops;
+	else
+		swdev->ops = &mt7530_ops;
+
+	ret = register_switch(swdev, NULL);
+	if (ret) {
+		dev_err(dev, "failed to register mt7530\n");
+		return ret;
+	}
+
+	mt7530_reset_switch(swdev);
+
+	map = mt7530_find_mapping(dev->of_node);
+	if (map)
+		mt7530_apply_mapping(mt7530, map);
+	mt7530_apply_config(swdev);
+
+	/* magic vodoo */
+	if (!(IS_ENABLED(CONFIG_SOC_MT7621) || IS_ENABLED(CONFIG_MACH_MT7623)) && bus && mt7530_r32(mt7530, REG_HWTRAP) !=  0x1117edf) {
+	        dev_info(dev, "fixing up MHWTRAP register - bootloader probably played with it\n");
+		mt7530_w32(mt7530, REG_HWTRAP, 0x1117edf);
+	}
+	dev_info(dev, "loaded %s driver\n", swdev->name);
+
+	return 0;
+}
diff --git a/drivers/net/ethernet/mediatek/mt7530.h b/drivers/net/ethernet/mediatek/mt7530.h
new file mode 100644
index 0000000..1fc8c62
--- /dev/null
+++ b/drivers/net/ethernet/mediatek/mt7530.h
@@ -0,0 +1,20 @@
+/*
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ */
+
+#ifndef _MT7530_H__
+#define _MT7530_H__
+
+int mt7530_probe(struct device *dev, void __iomem *base, struct mii_bus *bus, int vlan);
+
+#endif
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 6557026..bb62b91 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -24,6 +24,9 @@
 
 #include "mtk_eth_soc.h"
 
+/* the callback used by the driver core to bringup the switch */
+int mtk_gsw_init(struct mtk_eth *eth);
+
 static int mtk_msg_level = -1;
 module_param_named(msg_level, mtk_msg_level, int, 0);
 MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)");
@@ -69,7 +72,7 @@ static int mtk_mdio_busy_wait(struct mtk_eth *eth)
 			return 0;
 		if (time_after(jiffies, t_start + PHY_IAC_TIMEOUT))
 			break;
-		usleep_range(10, 20);
+//		usleep_range(10, 20);
 	}
 
 	dev_err(eth->dev, "mdio: MDIO timeout\n");
@@ -1408,15 +1411,6 @@ static int __init mtk_hw_init(struct mtk_eth *eth)
 	reset_control_deassert(eth->rstc);
 	usleep_range(10, 20);
 
-	/* Set GE2 driving and slew rate */
-	regmap_write(eth->pctl, GPIO_DRV_SEL10, 0xa00);
-
-	/* set GE2 TDSEL */
-	regmap_write(eth->pctl, GPIO_OD33_CTRL8, 0x5);
-
-	/* set GE2 TUNE */
-	regmap_write(eth->pctl, GPIO_BIAS_CTRL, 0x0);
-
 	/* GE1, Force 1000M/FD, FC ON */
 	mtk_w32(eth, MAC_MCR_FIXED_LINK, MTK_MAC_MCR(0));
 
@@ -1439,6 +1433,8 @@ static int __init mtk_hw_init(struct mtk_eth *eth)
 	if (err)
 		return err;
 
+	mtk_gsw_init(eth);
+
 	/* disable delay and normal interrupt */
 	mtk_w32(eth, 0, MTK_QDMA_DELAY_INT);
 	mtk_irq_disable(eth, MTK_TX_DONE_INT | MTK_RX_DONE_INT);
@@ -1466,6 +1462,8 @@ static int __init mtk_hw_init(struct mtk_eth *eth)
 		mtk_w32(eth, val, MTK_GDMA_FWD_CFG(i));
 	}
 
+	mt7623_gsw_config(eth);
+
 	return 0;
 }
 
@@ -1721,7 +1719,7 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np)
 {
 	struct mtk_mac *mac;
 	const __be32 *_id = of_get_property(np, "reg", NULL);
-	int id, err;
+	int id;
 
 	if (!_id) {
 		dev_err(eth->dev, "missing mac id\n");
@@ -1755,8 +1753,8 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np)
 				     GFP_KERNEL);
 	if (!mac->hw_stats) {
 		dev_err(eth->dev, "failed to allocate counter memory\n");
-		err = -ENOMEM;
-		goto free_netdev;
+		free_netdev(eth->netdev[id]);
+		return -ENOMEM;
 	}
 	spin_lock_init(&mac->hw_stats->stats_lock);
 	mac->hw_stats->reg_offset = id * MTK_STAT_OFFSET;
@@ -1770,21 +1768,9 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np)
 	eth->netdev[id]->features |= MTK_HW_FEATURES;
 	eth->netdev[id]->ethtool_ops = &mtk_ethtool_ops;
 
-	err = register_netdev(eth->netdev[id]);
-	if (err) {
-		dev_err(eth->dev, "error bringing up device\n");
-		goto free_netdev;
-	}
 	eth->netdev[id]->irq = eth->irq[0];
-	netif_info(eth, probe, eth->netdev[id],
-		   "mediatek frame engine at 0x%08lx, irq %d\n",
-		   eth->netdev[id]->base_addr, eth->irq[0]);
 
 	return 0;
-
-free_netdev:
-	free_netdev(eth->netdev[id]);
-	return err;
 }
 
 static int mtk_probe(struct platform_device *pdev)
@@ -1852,14 +1838,13 @@ static int mtk_probe(struct platform_device *pdev)
 	clk_prepare_enable(eth->clk_gp1);
 	clk_prepare_enable(eth->clk_gp2);
 
+	eth->switch_np = of_parse_phandle(pdev->dev.of_node,
+					  "mediatek,switch", 0);
+
 	eth->dev = &pdev->dev;
 	eth->msg_enable = netif_msg_init(mtk_msg_level, MTK_DEFAULT_MSG_ENABLE);
 	INIT_WORK(&eth->pending_work, mtk_pending_work);
 
-	err = mtk_hw_init(eth);
-	if (err)
-		return err;
-
 	for_each_child_of_node(pdev->dev.of_node, mac_np) {
 		if (!of_device_is_compatible(mac_np,
 					     "mediatek,eth-mac"))
@@ -1873,6 +1858,22 @@ static int mtk_probe(struct platform_device *pdev)
 			goto err_free_dev;
 	}
 
+	err = mtk_hw_init(eth);
+	if (err)
+		return err;
+
+	for (i = 0; i < MTK_MAX_DEVS; i++) {
+		if (!eth->netdev[i])
+			continue;
+		err = register_netdev(eth->netdev[i]);
+		if (err)
+			dev_err(eth->dev, "error bringing up device\n");
+		else
+			netif_info(eth, probe, eth->netdev[i],
+				   "mediatek frame engine at 0x%08lx, irq %d\n",
+				   eth->netdev[i]->base_addr, eth->irq[0]);
+	}
+
 	/* we run 2 devices on the same DMA ring so we need a dummy device
 	 * for NAPI to work
 	 */
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index bf158f8..5093518 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -406,6 +406,8 @@ struct mtk_eth {
 	struct mii_bus			*mii_bus;
 	struct work_struct		pending_work;
 
+	struct device_node		*switch_np;
+	void				*sw_priv;
 };
 
 /* struct mtk_mac -	the structure that holds the info about the MACs of the
@@ -433,4 +435,6 @@ void mtk_stats_update_mac(struct mtk_mac *mac);
 void mtk_w32(struct mtk_eth *eth, u32 val, unsigned reg);
 u32 mtk_r32(struct mtk_eth *eth, unsigned reg);
 
+int mt7623_gsw_config(struct mtk_eth *eth);
+
 #endif /* MTK_ETH_H */
-- 
1.7.10.4