path: root/target/linux/ramips/patches-4.4/0513-net-mediatek-add-swconfig-driver-for-gsw_mt762x.patch

From cf5a08f1f16913da8bb24a96afaa2969b29d0827 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 14 Dec 2015 22:25:57 +0100
Subject: [PATCH 513/513] net: mediatek: add swconfig driver for gsw_mt762x

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/net/ethernet/mediatek/Makefile      |    4 +-
 drivers/net/ethernet/mediatek/mt7530.c      |  804 +++++++++++++++++++++++++++
 drivers/net/ethernet/mediatek/mt7530.h      |   20 +
 drivers/net/ethernet/mediatek/mtk_eth_soc.c |    9 +-
 drivers/net/ethernet/mediatek/mtk_eth_soc.h |    1 +
 drivers/net/ethernet/mediatek/soc_mt7620.c  |    1 +
 6 files changed, 835 insertions(+), 4 deletions(-)
 create mode 100644 drivers/net/ethernet/mediatek/mt7530.c
 create mode 100644 drivers/net/ethernet/mediatek/mt7530.h

--- a/drivers/net/ethernet/mediatek/Makefile
+++ b/drivers/net/ethernet/mediatek/Makefile
@@ -15,6 +15,6 @@ mtk-eth-soc-$(CONFIG_NET_MEDIATEK_MT7620
 mtk-eth-soc-$(CONFIG_NET_MEDIATEK_MT7621)	+= soc_mt7621.o
 
 obj-$(CONFIG_NET_MEDIATEK_ESW_RT3050)		+= esw_rt3050.o
-obj-$(CONFIG_NET_MEDIATEK_GSW_MT7620)		+= gsw_mt7620.o
-obj-$(CONFIG_NET_MEDIATEK_GSW_MT7621)		+= gsw_mt7621.o
+obj-$(CONFIG_NET_MEDIATEK_GSW_MT7620)		+= gsw_mt7620.o mt7530.o
+obj-$(CONFIG_NET_MEDIATEK_GSW_MT7621)		+= gsw_mt7621.o mt7530.o
 obj-$(CONFIG_NET_MEDIATEK_SOC)			+= mtk-eth-soc.o
--- /dev/null
+++ b/drivers/net/ethernet/mediatek/mt7530.c
@@ -0,0 +1,804 @@
+/*
+ * 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 *priv = container_of(dev, struct mt7530_priv, swdev);
+	int i;
+
+	memset(priv->port_entries, 0, sizeof(priv->port_entries));
+	memset(priv->vlan_entries, 0, sizeof(priv->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++) {
+		priv->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 *priv = container_of(dev, struct mt7530_priv, swdev);
+
+	val->value.i = priv->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 *priv = container_of(dev, struct mt7530_priv, swdev);
+
+	priv->global_vlan_enable = val->value.i != 0;
+
+	return 0;
+}
+
+static u32
+mt7530_r32(struct mt7530_priv *priv, u32 reg)
+{
+	u32 val;
+	if (priv->bus) {
+		u16 high, low;
+
+		mdiobus_write(priv->bus, 0x1f, 0x1f, (reg >> 6) & 0x3ff);
+		low = mdiobus_read(priv->bus, 0x1f, (reg >> 2) & 0xf);
+		high = mdiobus_read(priv->bus, 0x1f, 0x10);
+
+		return (high << 16) | (low & 0xffff);
+	}
+
+	val = ioread32(priv->base + reg);
+	pr_debug("MT7530 MDIO Read [%04x]=%08x\n", reg, val);
+
+	return val;
+}
+
+static void
+mt7530_w32(struct mt7530_priv *priv, u32 reg, u32 val)
+{
+	if (priv->bus) {
+		mdiobus_write(priv->bus, 0x1f, 0x1f, (reg >> 6) & 0x3ff);
+		mdiobus_write(priv->bus, 0x1f, (reg >> 2) & 0xf,  val & 0xffff);
+		mdiobus_write(priv->bus, 0x1f, 0x10, val >> 16);
+		return;
+	}
+
+	pr_debug("MT7530 MDIO Write[%04x]=%08x\n", reg, val);
+	iowrite32(val, priv->base + reg);
+}
+
+static void
+mt7530_vtcr(struct mt7530_priv *priv, u32 cmd, u32 val)
+{
+	int i;
+
+	mt7530_w32(priv, REG_ESW_VLAN_VTCR, BIT(31) | (cmd << 12) | val);
+
+	for (i = 0; i < 20; i++) {
+		u32 val = mt7530_r32(priv, 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 *priv = container_of(dev, struct mt7530_priv, swdev);
+
+	if (port >= MT7530_NUM_PORTS)
+		return -EINVAL;
+
+	*val = mt7530_r32(priv, 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 *priv = 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;
+
+	priv->port_entries[port].pvid = pvid;
+
+	return 0;
+}
+
+static int
+mt7530_get_vlan_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct mt7530_priv *priv = 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(priv, 0, val->port_vlan);
+
+	member = mt7530_r32(priv, REG_ESW_VLAN_VAWD1);
+	member >>= 16;
+	member &= 0xff;
+
+	etags = mt7530_r32(priv, 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 *priv = 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);
+	}
+	priv->vlan_entries[val->port_vlan].member = member;
+	priv->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 *priv = 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;
+
+	priv->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 *priv = container_of(dev, struct mt7530_priv, swdev);
+	u32 vid;
+	int vlan;
+
+	vlan = val->port_vlan;
+
+	vid = mt7530_r32(priv, 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 *priv = container_of(dev, struct mt7530_priv, swdev);
+	int i, j;
+	u8 tag_ports;
+	u8 untag_ports;
+
+	if (!priv->global_vlan_enable) {
+		for (i = 0; i < MT7530_NUM_PORTS; i++)
+			mt7530_w32(priv, REG_ESW_PORT_PCR(i), 0x00ff0000);
+
+		for (i = 0; i < MT7530_NUM_PORTS; i++)
+			mt7530_w32(priv, REG_ESW_PORT_PVC(i), 0x810000c0);
+
+		return 0;
+	}
+
+	/* set all ports as security mode */
+	for (i = 0; i < MT7530_NUM_PORTS; i++)
+		mt7530_w32(priv, 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 = priv->vlan_entries[i].member;
+		u8 etags = priv->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(priv, REG_ESW_PORT_PVC(i), pvc_mode);
+	}
+
+	for (i = 0; i < MT7530_NUM_VLANS; i++) {
+		u16 vid = priv->vlan_entries[i].vid;
+		u8 member = priv->vlan_entries[i].member;
+		u8 etags = priv->vlan_entries[i].etags;
+		u32 val;
+
+		/* vid of vlan */
+		val = mt7530_r32(priv, REG_ESW_VLAN_VTIM(i));
+		if (i % 2 == 0) {
+			val &= 0xfff000;
+			val |= vid;
+		} else {
+			val &= 0xfff;
+			val |= (vid << 12);
+		}
+		mt7530_w32(priv, REG_ESW_VLAN_VTIM(i), val);
+
+		/* vlan port membership */
+		if (member)
+			mt7530_w32(priv, 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(priv, 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(priv, REG_ESW_VLAN_VAWD2, val);
+
+		/* write to vlan table */
+		mt7530_vtcr(priv, 1, i);
+	}
+
+	/* Port Default PVID */
+	for (i = 0; i < MT7530_NUM_PORTS; i++) {
+		u32 val;
+		val = mt7530_r32(priv, REG_ESW_PORT_PPBV1(i));
+		val &= ~0xfff;
+		val |= priv->port_entries[i].pvid;
+		mt7530_w32(priv, 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 *priv = container_of(dev, struct mt7530_priv, swdev);
+	u32 speed, pmsr;
+
+	if (port < 0 || port >= MT7530_NUM_PORTS)
+		return -EINVAL;
+
+	pmsr = mt7530_r32(priv, 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 *priv, 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(priv, port_base + mt7621_mibs[i].offset);
+	if (mt7621_mibs[i].size == 2) {
+		u64 hi;
+
+		hi = mt7530_r32(priv, 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 *priv = 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(priv, 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_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))
+		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;
+	}
+
+
+	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) && 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;
+}
--- /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
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1291,8 +1291,13 @@ static int __init fe_init(struct net_dev
 	}
 
 	err = fe_hw_init(dev);
-	if (!err)
-		return 0;
+	if (err)
+		goto err_phy_disconnect;
+
+	if ((priv->flags & FE_FLAG_HAS_SWITCH) && priv->soc->switch_config)
+		priv->soc->switch_config(priv);
+
+	return 0;
 
 err_phy_disconnect:
 	if (priv->phy)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -383,6 +383,7 @@ struct fe_soc_data {
 	int (*fwd_config)(struct fe_priv *priv);
 	void (*tx_dma)(struct fe_tx_dma *txd);
 	int (*switch_init)(struct fe_priv *priv);
+	int (*switch_config)(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);
--- a/drivers/net/ethernet/mediatek/soc_mt7620.c
+++ b/drivers/net/ethernet/mediatek/soc_mt7620.c
@@ -313,6 +313,7 @@ static struct fe_soc_data mt7620_data =
 	.fwd_config = mt7620_fwd_config,
 	.tx_dma = mt7620_tx_dma,
 	.switch_init = mtk_gsw_init,
+	.switch_config = mt7620_gsw_config,
 	.port_init = mt7620_port_init,
 	.reg_table = mt7620_reg_table,
 	.pdma_glo_cfg = FE_PDMA_SIZE_16DWORDS,