ar71xx: add a new driver for the ar7240 switch using swconfig.

hooks directly into the ethernet driver, as MAC resets also require switch reinitializations and the switch is part of the cpu core anyway
switch only tl-wr741nd (and other devices using this board file, such as tl-wr841nd) over to using this by default, as other devices are still untested
fixes #7563

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22675 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 875 insertions, 2 deletions

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile b/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile
index 3485ab385..b3ec4084c 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile
@@ -6,6 +6,7 @@ ag71xx-y	+= ag71xx_main.o
 ag71xx-y	+= ag71xx_ethtool.o
 ag71xx-y	+= ag71xx_phy.o
 ag71xx-y	+= ag71xx_mdio.o
+ag71xx-y	+= ag71xx_ar7240.o
 
 ag71xx-$(CONFIG_AG71XX_DEBUG_FS)	+= ag71xx_debugfs.o
 ag71xx-$(CONFIG_AG71XX_AR8216_SUPPORT)	+= ag71xx_ar8216.o
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
index af4197248..be14e7e08 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
@@ -51,7 +51,7 @@
 #define AG71XX_INT_INIT	(AG71XX_INT_ERR | AG71XX_INT_POLL)
 
 #define AG71XX_TX_FIFO_LEN	2048
-#define AG71XX_TX_MTU_LEN	1536
+#define AG71XX_TX_MTU_LEN	1540
 #define AG71XX_RX_PKT_RESERVE	64
 #define AG71XX_RX_PKT_SIZE	\
 	(AG71XX_RX_PKT_RESERVE + ETH_HLEN + ETH_FRAME_LEN + ETH_FCS_LEN)
@@ -158,6 +158,7 @@ struct ag71xx {
 
 	struct mii_bus		*mii_bus;
 	struct phy_device	*phy_dev;
+	void			*phy_priv;
 
 	unsigned int		link;
 	unsigned int		speed;
@@ -497,4 +498,9 @@ static inline void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag,
 						    int rx, int tx) {}
 #endif /* CONFIG_AG71XX_DEBUG_FS */
 
+void ag71xx_ar7240_start(struct ag71xx *ag);
+void ag71xx_ar7240_stop(struct ag71xx *ag);
+int ag71xx_ar7240_init(struct ag71xx *ag);
+void ag71xx_ar7240_cleanup(struct ag71xx *ag);
+
 #endif /* _AG71XX_H */
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
new file mode 100644
index 000000000..e299e68af
--- /dev/null
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
@@ -0,0 +1,851 @@
+/*
+ *  Driver for the built-in ethernet switch of the Atheros AR7240 SoC
+ *  Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (c) 2010 Felix Fietkau <nbd@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <linux/mii.h>
+#include <linux/bitops.h>
+#include <linux/switch.h>
+#include "ag71xx.h"
+
+#define BITM(_count)	(BIT(_count) - 1)
+#define BITS(_shift, _count)	(BITM(_count) << _shift)
+
+#define AR7240_REG_MASK_CTRL		0x00
+#define AR7240_MASK_CTRL_REVISION_M	BITM(8)
+#define AR7240_MASK_CTRL_VERSION_M	BITM(8)
+#define AR7240_MASK_CTRL_VERSION_S	8
+#define AR7240_MASK_CTRL_SOFT_RESET	BIT(31)
+
+#define AR7240_REG_MAC_ADDR0		0x20
+#define AR7240_REG_MAC_ADDR1		0x24
+
+#define AR7240_REG_FLOOD_MASK		0x2c
+#define AR7240_FLOOD_MASK_BROAD_TO_CPU	BIT(26)
+
+#define AR7240_REG_GLOBAL_CTRL		0x30
+#define AR7240_GLOBAL_CTRL_MTU_M	BITM(12)
+
+#define AR7240_REG_VTU			0x0040
+#define   AR7240_VTU_OP			BITM(3)
+#define   AR7240_VTU_OP_NOOP		0x0
+#define   AR7240_VTU_OP_FLUSH		0x1
+#define   AR7240_VTU_OP_LOAD		0x2
+#define   AR7240_VTU_OP_PURGE		0x3
+#define   AR7240_VTU_OP_REMOVE_PORT	0x4
+#define   AR7240_VTU_ACTIVE		BIT(3)
+#define   AR7240_VTU_FULL		BIT(4)
+#define   AR7240_VTU_PORT		BITS(8, 4)
+#define   AR7240_VTU_PORT_S		8
+#define   AR7240_VTU_VID		BITS(16, 12)
+#define   AR7240_VTU_VID_S		16
+#define   AR7240_VTU_PRIO		BITS(28, 3)
+#define   AR7240_VTU_PRIO_S		28
+#define   AR7240_VTU_PRIO_EN		BIT(31)
+
+#define AR7240_REG_VTU_DATA		0x0044
+#define   AR7240_VTUDATA_MEMBER		BITS(0, 10)
+#define   AR7240_VTUDATA_VALID		BIT(11)
+
+#define AR7240_REG_AT_CTRL		0x5c
+#define AR7240_AT_CTRL_ARP_EN		BIT(20)
+
+#define AR7240_REG_TAG_PRIORITY		0x70
+
+#define AR7240_REG_SERVICE_TAG		0x74
+#define AR7240_SERVICE_TAG_M		BITM(16)
+
+#define AR7240_REG_CPU_PORT		0x78
+#define AR7240_MIRROR_PORT_S		4
+#define AR7240_CPU_PORT_EN		BIT(8)
+
+#define AR7240_REG_MIB_FUNCTION0	0x80
+#define AR7240_MIB_TIMER_M		BITM(16)
+#define AR7240_MIB_AT_HALF_EN		BIT(16)
+#define AR7240_MIB_BUSY			BIT(17)
+#define AR7240_MIB_FUNC_S		24
+#define AR7240_MIB_FUNC_NO_OP		0x0
+#define AR7240_MIB_FUNC_FLUSH		0x1
+#define AR7240_MIB_FUNC_CAPTURE		0x3
+
+#define AR7240_REG_MDIO_CTRL		0x98
+#define AR7240_MDIO_CTRL_DATA_M		BITM(16)
+#define AR7240_MDIO_CTRL_REG_ADDR_S	16
+#define AR7240_MDIO_CTRL_PHY_ADDR_S	21
+#define AR7240_MDIO_CTRL_CMD_WRITE	0
+#define AR7240_MDIO_CTRL_CMD_READ	BIT(27)
+#define AR7240_MDIO_CTRL_MASTER_EN	BIT(30)
+#define AR7240_MDIO_CTRL_BUSY		BIT(31)
+
+#define AR7240_REG_PORT_BASE(_port)	(0x100 + (_port) * 0x100)
+
+#define AR7240_REG_PORT_STATUS(_port)	(AR7240_REG_PORT_BASE((_port)) + 0x00)
+#define AR7240_PORT_STATUS_SPEED_M	BITM(2)
+#define AR7240_PORT_STATUS_SPEED_10	0
+#define AR7240_PORT_STATUS_SPEED_100	1
+#define AR7240_PORT_STATUS_SPEED_1000	2
+#define AR7240_PORT_STATUS_TXMAC	BIT(2)
+#define AR7240_PORT_STATUS_RXMAC	BIT(3)
+#define AR7240_PORT_STATUS_TXFLOW	BIT(4)
+#define AR7240_PORT_STATUS_RXFLOW	BIT(5)
+#define AR7240_PORT_STATUS_DUPLEX	BIT(6)
+#define AR7240_PORT_STATUS_LINK_UP	BIT(8)
+#define AR7240_PORT_STATUS_LINK_AUTO	BIT(9)
+#define AR7240_PORT_STATUS_LINK_PAUSE	BIT(10)
+
+#define AR7240_REG_PORT_CTRL(_port)	(AR7240_REG_PORT_BASE((_port)) + 0x04)
+#define AR7240_PORT_CTRL_STATE_M	BITM(3)
+#define	AR7240_PORT_CTRL_STATE_DISABLED	0
+#define AR7240_PORT_CTRL_STATE_BLOCK	1
+#define AR7240_PORT_CTRL_STATE_LISTEN	2
+#define AR7240_PORT_CTRL_STATE_LEARN	3
+#define AR7240_PORT_CTRL_STATE_FORWARD	4
+#define AR7240_PORT_CTRL_LEARN_LOCK	BIT(7)
+#define AR7240_PORT_CTRL_VLAN_MODE_S	8
+#define AR7240_PORT_CTRL_VLAN_MODE_KEEP	0
+#define AR7240_PORT_CTRL_VLAN_MODE_STRIP 1
+#define AR7240_PORT_CTRL_VLAN_MODE_ADD	2
+#define AR7240_PORT_CTRL_VLAN_MODE_DOUBLE_TAG 3
+#define AR7240_PORT_CTRL_IGMP_SNOOP	BIT(10)
+#define AR7240_PORT_CTRL_HEADER		BIT(11)
+#define AR7240_PORT_CTRL_MAC_LOOP	BIT(12)
+#define AR7240_PORT_CTRL_SINGLE_VLAN	BIT(13)
+#define AR7240_PORT_CTRL_LEARN		BIT(14)
+#define AR7240_PORT_CTRL_DOUBLE_TAG	BIT(15)
+#define AR7240_PORT_CTRL_MIRROR_TX	BIT(16)
+#define AR7240_PORT_CTRL_MIRROR_RX	BIT(17)
+
+#define AR7240_REG_PORT_VLAN(_port)	(AR7240_REG_PORT_BASE((_port)) + 0x08)
+
+#define AR7240_PORT_VLAN_DEFAULT_ID_S	0
+#define AR7240_PORT_VLAN_DEST_PORTS_S	16
+#define AR7240_PORT_VLAN_MODE_S		30
+#define AR7240_PORT_VLAN_MODE_PORT_ONLY	0
+#define AR7240_PORT_VLAN_MODE_PORT_FALLBACK	1
+#define AR7240_PORT_VLAN_MODE_VLAN_ONLY	2
+#define AR7240_PORT_VLAN_MODE_SECURE	3
+
+
+#define AR7240_REG_STATS_BASE(_port)	(0x20000 + (_port) * 0x100)
+
+#define AR7240_STATS_RXBROAD		0x00
+#define AR7240_STATS_RXPAUSE		0x04
+#define AR7240_STATS_RXMULTI		0x08
+#define AR7240_STATS_RXFCSERR		0x0c
+#define AR7240_STATS_RXALIGNERR		0x10
+#define AR7240_STATS_RXRUNT		0x14
+#define AR7240_STATS_RXFRAGMENT		0x18
+#define AR7240_STATS_RX64BYTE		0x1c
+#define AR7240_STATS_RX128BYTE		0x20
+#define AR7240_STATS_RX256BYTE		0x24
+#define AR7240_STATS_RX512BYTE		0x28
+#define AR7240_STATS_RX1024BYTE		0x2c
+#define AR7240_STATS_RX1518BYTE		0x30
+#define AR7240_STATS_RXMAXBYTE		0x34
+#define AR7240_STATS_RXTOOLONG		0x38
+#define AR7240_STATS_RXGOODBYTE		0x3c
+#define AR7240_STATS_RXBADBYTE		0x44
+#define AR7240_STATS_RXOVERFLOW		0x4c
+#define AR7240_STATS_FILTERED		0x50
+#define AR7240_STATS_TXBROAD		0x54
+#define AR7240_STATS_TXPAUSE		0x58
+#define AR7240_STATS_TXMULTI		0x5c
+#define AR7240_STATS_TXUNDERRUN		0x60
+#define AR7240_STATS_TX64BYTE		0x64
+#define AR7240_STATS_TX128BYTE		0x68
+#define AR7240_STATS_TX256BYTE		0x6c
+#define AR7240_STATS_TX512BYTE		0x70
+#define AR7240_STATS_TX1024BYTE		0x74
+#define AR7240_STATS_TX1518BYTE		0x78
+#define AR7240_STATS_TXMAXBYTE		0x7c
+#define AR7240_STATS_TXOVERSIZE		0x80
+#define AR7240_STATS_TXBYTE		0x84
+#define AR7240_STATS_TXCOLLISION	0x8c
+#define AR7240_STATS_TXABORTCOL		0x90
+#define AR7240_STATS_TXMULTICOL		0x94
+#define AR7240_STATS_TXSINGLECOL	0x98
+#define AR7240_STATS_TXEXCDEFER		0x9c
+#define AR7240_STATS_TXDEFER		0xa0
+#define AR7240_STATS_TXLATECOL		0xa4
+
+#define AR7240_PORT_CPU		0
+#define AR7240_NUM_PORTS	6
+#define AR7240_NUM_PHYS		5
+
+#define AR7240_PHY_ID1		0x004d
+#define AR7240_PHY_ID2		0xd041
+
+#define AR7240_PORT_MASK(_port)		BIT((_port))
+#define AR7240_PORT_MASK_ALL		BITM(AR7240_NUM_PORTS)
+#define AR7240_PORT_MASK_BUT(_port)	(AR7240_PORT_MASK_ALL & ~BIT((_port)))
+
+#define AR7240_MAX_VLANS	16
+
+#define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev)
+
+struct ar7240sw {
+	struct mii_bus	*mii_bus;
+	struct mutex	reg_mutex;
+	struct switch_dev swdev;
+	bool vlan;
+	u16 vlan_id[AR7240_MAX_VLANS];
+	u8 vlan_table[AR7240_MAX_VLANS];
+	u8 vlan_tagged;
+	u16 pvid[AR7240_NUM_PORTS];
+};
+
+struct ar7240sw_hw_stat {
+	char string[ETH_GSTRING_LEN];
+	int sizeof_stat;
+	int reg;
+};
+
+
+static inline void ar7240sw_init(struct ar7240sw *as, struct mii_bus *mii)
+{
+	as->mii_bus = mii;
+	mutex_init(&as->reg_mutex);
+}
+
+static inline u16 mk_phy_addr(u32 reg)
+{
+	return (0x17 & ((reg >> 4) | 0x10));
+}
+
+static inline u16 mk_phy_reg(u32 reg)
+{
+	return ((reg << 1) & 0x1e);
+}
+
+static inline u16 mk_high_addr(u32 reg)
+{
+	return ((reg >> 7) & 0x1ff);
+}
+
+static u32 __ar7240sw_reg_read(struct ar7240sw *as, u32 reg)
+{
+	struct mii_bus *mii = as->mii_bus;
+	u16 phy_addr;
+	u16 phy_reg;
+	u32 hi, lo;
+
+	reg = (reg & 0xfffffffc) >> 2;
+
+	mdiobus_write(mii, 0x1f, 0x10, mk_high_addr(reg));
+
+	phy_addr = mk_phy_addr(reg);
+	phy_reg = mk_phy_reg(reg);
+
+	lo = (u32) mdiobus_read(mii, phy_addr, phy_reg);
+	hi = (u32) mdiobus_read(mii, phy_addr, phy_reg + 1);
+
+	return ((hi << 16) | lo);
+}
+
+static void __ar7240sw_reg_write(struct ar7240sw *as, u32 reg, u32 val)
+{
+	struct mii_bus *mii = as->mii_bus;
+	u16 phy_addr;
+	u16 phy_reg;
+
+	reg = (reg & 0xfffffffc) >> 2;
+
+	mdiobus_write(mii, 0x1f, 0x10, mk_high_addr(reg));
+
+	phy_addr = mk_phy_addr(reg);
+	phy_reg = mk_phy_reg(reg);
+
+	mdiobus_write(mii, phy_addr, phy_reg + 1, (val >> 16));
+	mdiobus_write(mii, phy_addr, phy_reg, (val & 0xffff));
+}
+
+static u32 ar7240sw_reg_read(struct ar7240sw *as, u32 reg_addr)
+{
+	u32 ret;
+
+	mutex_lock(&as->reg_mutex);
+	ret = __ar7240sw_reg_read(as, reg_addr);
+	mutex_unlock(&as->reg_mutex);
+
+	return ret;
+}
+
+static void ar7240sw_reg_write(struct ar7240sw *as, u32 reg_addr, u32 reg_val)
+{
+	mutex_lock(&as->reg_mutex);
+	__ar7240sw_reg_write(as, reg_addr, reg_val);
+	mutex_unlock(&as->reg_mutex);
+}
+
+static u32 ar7240sw_reg_rmw(struct ar7240sw *as, u32 reg, u32 mask, u32 val)
+{
+	u32 t;
+
+	mutex_lock(&as->reg_mutex);
+	t = __ar7240sw_reg_read(as, reg);
+	t &= ~mask;
+	t |= val;
+	__ar7240sw_reg_write(as, reg, t);
+	mutex_unlock(&as->reg_mutex);
+
+	return t;
+}
+
+static void ar7240sw_reg_set(struct ar7240sw *as, u32 reg, u32 val)
+{
+	u32 t;
+
+	mutex_lock(&as->reg_mutex);
+	t = __ar7240sw_reg_read(as, reg);
+	t |= val;
+	__ar7240sw_reg_write(as, reg, t);
+	mutex_unlock(&as->reg_mutex);
+}
+
+static int ar7240sw_reg_wait(struct ar7240sw *as, u32 reg, u32 mask, u32 val,
+			     unsigned timeout)
+{
+	int i;
+
+	for (i = 0; i < timeout; i++) {
+		u32 t;
+
+		t = ar7240sw_reg_read(as, reg);
+		if ((t & mask) == val)
+			return 0;
+
+		msleep(1);
+	}
+
+	return -ETIMEDOUT;
+}
+
+static u16 ar7240sw_phy_read(struct ar7240sw *as, unsigned phy_addr,
+			     unsigned reg_addr)
+{
+	u32 t;
+	int err;
+
+	if (phy_addr >= AR7240_NUM_PHYS)
+		return 0xffff;
+
+	t = (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) |
+	    (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) |
+	    AR7240_MDIO_CTRL_MASTER_EN |
+	    AR7240_MDIO_CTRL_BUSY |
+	    AR7240_MDIO_CTRL_CMD_READ;
+
+	ar7240sw_reg_write(as, AR7240_REG_MDIO_CTRL, t);
+	err = ar7240sw_reg_wait(as, AR7240_REG_MDIO_CTRL,
+				AR7240_MDIO_CTRL_BUSY, 0, 5);
+	if (err)
+		return 0xffff;
+
+	t = ar7240sw_reg_read(as, AR7240_REG_MDIO_CTRL);
+	return (t & AR7240_MDIO_CTRL_DATA_M);
+}
+
+static int ar7240sw_phy_write(struct ar7240sw *as, unsigned phy_addr,
+			      unsigned reg_addr, u16 reg_val)
+{
+	u32 t;
+	int ret;
+
+	if (phy_addr >= AR7240_NUM_PHYS)
+		return -EINVAL;
+
+	t = (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) |
+	    (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) |
+	    AR7240_MDIO_CTRL_MASTER_EN |
+	    AR7240_MDIO_CTRL_BUSY |
+	    AR7240_MDIO_CTRL_CMD_WRITE |
+	    reg_val;
+
+	ar7240sw_reg_write(as, AR7240_REG_MDIO_CTRL, t);
+	ret = ar7240sw_reg_wait(as, AR7240_REG_MDIO_CTRL,
+				AR7240_MDIO_CTRL_BUSY, 0, 5);
+	return ret;
+}
+
+static int ar7240sw_capture_stats(struct ar7240sw *as)
+{
+	int ret;
+
+	/* Capture the hardware statistics for all ports */
+	ar7240sw_reg_write(as, AR7240_REG_MIB_FUNCTION0,
+			   (AR7240_MIB_FUNC_CAPTURE << AR7240_MIB_FUNC_S));
+
+	/* Wait for the capturing to complete. */
+	ret = ar7240sw_reg_wait(as, AR7240_REG_MIB_FUNCTION0,
+				AR7240_MIB_BUSY, 0, 10);
+	return ret;
+}
+
+static void ar7240sw_disable_port(struct ar7240sw *as, unsigned port)
+{
+	ar7240sw_reg_write(as, AR7240_REG_PORT_CTRL(port),
+			   AR7240_PORT_CTRL_STATE_DISABLED);
+}
+
+static int ar7240sw_reset(struct ar7240sw *as)
+{
+	int ret;
+	int i;
+
+	/* Set all ports to disabled state. */
+	for (i = 0; i < AR7240_NUM_PORTS; i++)
+		ar7240sw_disable_port(as, i);
+
+	/* Wait for transmit queues to drain. */
+	msleep(2);
+
+	/* Reset the switch. */
+	ar7240sw_reg_write(as, AR7240_REG_MASK_CTRL,
+			   AR7240_MASK_CTRL_SOFT_RESET);
+
+	ret = ar7240sw_reg_wait(as, AR7240_REG_MASK_CTRL,
+			        AR7240_MASK_CTRL_SOFT_RESET, 0, 1000);
+	return ret;
+}
+
+static void ar7240sw_setup(struct ar7240sw *as)
+{
+	/* Enable CPU port, and disable mirror port */
+	ar7240sw_reg_write(as, AR7240_REG_CPU_PORT,
+			   AR7240_CPU_PORT_EN |
+			   (15 << AR7240_MIRROR_PORT_S));
+
+	/* Setup TAG priority mapping */
+	ar7240sw_reg_write(as, AR7240_REG_TAG_PRIORITY, 0xfa50);
+
+	/* Enable ARP frame acknowledge */
+	ar7240sw_reg_set(as, AR7240_REG_AT_CTRL, AR7240_AT_CTRL_ARP_EN);
+
+	/* Enable Broadcast frames transmitted to the CPU */
+	ar7240sw_reg_set(as, AR7240_REG_FLOOD_MASK,
+			 AR7240_FLOOD_MASK_BROAD_TO_CPU);
+
+	/* setup MTU */
+	ar7240sw_reg_rmw(as, AR7240_REG_GLOBAL_CTRL, AR7240_GLOBAL_CTRL_MTU_M,
+			 1536);
+
+	/* setup Service TAG */
+	ar7240sw_reg_rmw(as, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0);
+}
+
+static void ar7240sw_setup_port(struct ar7240sw *as, unsigned port, u8 portmask)
+{
+	u32 ctrl;
+	u32 dest_ports;
+	u32 vlan;
+
+	ctrl = AR7240_PORT_CTRL_STATE_FORWARD | AR7240_PORT_CTRL_LEARN |
+		AR7240_PORT_CTRL_SINGLE_VLAN;
+
+	if (port == AR7240_PORT_CPU) {
+		ar7240sw_reg_write(as, AR7240_REG_PORT_STATUS(port),
+				   AR7240_PORT_STATUS_SPEED_1000 |
+				   AR7240_PORT_STATUS_TXFLOW |
+				   AR7240_PORT_STATUS_RXFLOW |
+				   AR7240_PORT_STATUS_TXMAC |
+				   AR7240_PORT_STATUS_RXMAC |
+				   AR7240_PORT_STATUS_DUPLEX);
+	} else {
+		ar7240sw_reg_write(as, AR7240_REG_PORT_STATUS(port),
+				   AR7240_PORT_STATUS_LINK_AUTO);
+	}
+
+	/* Set the default VID for this port */
+	if (as->vlan) {
+		vlan = as->vlan_id[as->pvid[port]];
+		vlan |= AR7240_PORT_VLAN_MODE_SECURE <<
+			AR7240_PORT_VLAN_MODE_S;
+	} else {
+		vlan = port;
+		vlan |= AR7240_PORT_VLAN_MODE_PORT_ONLY <<
+			AR7240_PORT_VLAN_MODE_S;
+	}
+
+	if (as->vlan && (as->vlan_tagged & BIT(port))) {
+		ctrl |= AR7240_PORT_CTRL_VLAN_MODE_ADD <<
+			AR7240_PORT_CTRL_VLAN_MODE_S;
+	} else {
+		ctrl |= AR7240_PORT_CTRL_VLAN_MODE_STRIP <<
+			AR7240_PORT_CTRL_VLAN_MODE_S;
+	}
+
+	if (!portmask) {
+		if (port == AR7240_PORT_CPU)
+			portmask = AR7240_PORT_MASK_BUT(AR7240_PORT_CPU);
+		else
+			portmask = AR7240_PORT_MASK(AR7240_PORT_CPU);
+	}
+
+	/* allow the port to talk to all other ports, but exclude its
+	 * own ID to prevent frames from being reflected back to the
+	 * port that they came from */
+	dest_ports = AR7240_PORT_MASK_BUT(port);
+
+	/* set default VID and and destination ports for this VLAN */
+	vlan |= (portmask << AR7240_PORT_VLAN_DEST_PORTS_S);
+
+	ar7240sw_reg_write(as, AR7240_REG_PORT_CTRL(port), ctrl);
+	ar7240sw_reg_write(as, AR7240_REG_PORT_VLAN(port), vlan);
+}
+
+static int ar7240_set_addr(struct ar7240sw *as, u8 *addr)
+{
+	u32 t;
+
+	t = (addr[4] << 8) | addr[5];
+	ar7240sw_reg_write(as, AR7240_REG_MAC_ADDR0, t);
+
+	t = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3];
+	ar7240sw_reg_write(as, AR7240_REG_MAC_ADDR1, t);
+
+	return 0;
+}
+
+static int
+ar7240_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
+                struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	as->vlan_id[val->port_vlan] = val->value.i;
+	return 0;
+}
+
+static int
+ar7240_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
+                struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	val->value.i = as->vlan_id[val->port_vlan];
+	return 0;
+}
+
+static int
+ar7240_set_pvid(struct switch_dev *dev, int port, int vlan)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+
+	/* make sure no invalid PVIDs get set */
+
+	if (vlan >= dev->vlans)
+		return -EINVAL;
+
+	as->pvid[port] = vlan;
+	return 0;
+}
+
+static int
+ar7240_get_pvid(struct switch_dev *dev, int port, int *vlan)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	*vlan = as->pvid[port];
+	return 0;
+}
+
+static int
+ar7240_get_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	u8 ports = as->vlan_table[val->port_vlan];
+	int i;
+
+	val->len = 0;
+	for (i = 0; i < AR7240_NUM_PORTS; i++) {
+		struct switch_port *p;
+
+		if (!(ports & (1 << i)))
+			continue;
+
+		p = &val->value.ports[val->len++];
+		p->id = i;
+		if (as->vlan_tagged & (1 << i))
+			p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
+		else
+			p->flags = 0;
+	}
+	return 0;
+}
+
+static int
+ar7240_set_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	u8 *vt = &as->vlan_table[val->port_vlan];
+	int i, j;
+
+	*vt = 0;
+	for (i = 0; i < val->len; i++) {
+		struct switch_port *p = &val->value.ports[i];
+
+		if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED))
+			as->vlan_tagged |= (1 << p->id);
+		else {
+			as->vlan_tagged &= ~(1 << p->id);
+			as->pvid[p->id] = val->port_vlan;
+
+			/* make sure that an untagged port does not
+			 * appear in other vlans */
+			for (j = 0; j < AR7240_MAX_VLANS; j++) {
+				if (j == val->port_vlan)
+					continue;
+				as->vlan_table[j] &= ~(1 << p->id);
+			}
+		}
+
+		*vt |= 1 << p->id;
+	}
+	return 0;
+}
+
+static int
+ar7240_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
+                struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	as->vlan = !!val->value.i;
+	return 0;
+}
+
+static int
+ar7240_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
+                struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	val->value.i = as->vlan;
+	return 0;
+}
+
+
+static void
+ar7240_vtu_op(struct ar7240sw *as, u32 op, u32 val)
+{
+	if (ar7240sw_reg_wait(as, AR7240_REG_VTU, AR7240_VTU_ACTIVE, 0, 5))
+		return;
+
+	if ((op & AR7240_VTU_OP) == AR7240_VTU_OP_LOAD) {
+		val &= AR7240_VTUDATA_MEMBER;
+		val |= AR7240_VTUDATA_VALID;
+		ar7240sw_reg_write(as, AR7240_REG_VTU_DATA, val);
+	}
+	op |= AR7240_VTU_ACTIVE;
+	ar7240sw_reg_write(as, AR7240_REG_VTU, op);
+}
+
+static int
+ar7240_hw_apply(struct switch_dev *dev)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	u8 portmask[AR7240_NUM_PORTS];
+	int i, j;
+
+	/* flush all vlan translation unit entries */
+	ar7240_vtu_op(as, AR7240_VTU_OP_FLUSH, 0);
+
+	memset(portmask, 0, sizeof(portmask));
+	if (as->vlan) {
+		/* calculate the port destination masks and load vlans
+		 * into the vlan translation unit */
+		for (j = 0; j < AR7240_MAX_VLANS; j++) {
+			u8 vp = as->vlan_table[j];
+
+			if (!vp)
+				continue;
+
+			for (i = 0; i < AR7240_NUM_PORTS; i++) {
+				u8 mask = (1 << i);
+				if (vp & mask)
+					portmask[i] |= vp & ~mask;
+			}
+
+			ar7240_vtu_op(as,
+				AR7240_VTU_OP_LOAD |
+				(as->vlan_id[j] << AR7240_VTU_VID_S),
+				as->vlan_table[j]);
+		}
+	} else {
+		/* vlan disabled:
+		 * isolate all ports, but connect them to the cpu port */
+		for (i = 0; i < AR7240_NUM_PORTS; i++) {
+			if (i == AR7240_PORT_CPU)
+				continue;
+
+			portmask[i] = 1 << AR7240_PORT_CPU;
+			portmask[AR7240_PORT_CPU] |= (1 << i);
+		}
+	}
+
+	/* update the port destination mask registers and tag settings */
+	for (i = 0; i < AR7240_NUM_PORTS; i++)
+		ar7240sw_setup_port(as, i, portmask[i]);
+
+	return 0;
+}
+
+static int
+ar7240_reset_switch(struct switch_dev *dev)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	ar7240sw_reset(as);
+	return 0;
+}
+
+static struct switch_attr ar7240_globals[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_vlan",
+		.description = "Enable VLAN mode",
+		.set = ar7240_set_vlan,
+		.get = ar7240_get_vlan,
+		.max = 1
+	},
+};
+
+static struct switch_attr ar7240_port[] = {
+};
+
+static struct switch_attr ar7240_vlan[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "vid",
+		.description = "VLAN ID",
+		.set = ar7240_set_vid,
+		.get = ar7240_get_vid,
+		.max = 4094,
+	},
+};
+
+static const struct switch_dev_ops ar7240_ops = {
+	.attr_global = {
+		.attr = ar7240_globals,
+		.n_attr = ARRAY_SIZE(ar7240_globals),
+	},
+	.attr_port = {
+		.attr = ar7240_port,
+		.n_attr = ARRAY_SIZE(ar7240_port),
+	},
+	.attr_vlan = {
+		.attr = ar7240_vlan,
+		.n_attr = ARRAY_SIZE(ar7240_vlan),
+	},
+	.get_port_pvid = ar7240_get_pvid,
+	.set_port_pvid = ar7240_set_pvid,
+	.get_vlan_ports = ar7240_get_ports,
+	.set_vlan_ports = ar7240_set_ports,
+	.apply_config = ar7240_hw_apply,
+	.reset_switch = ar7240_reset_switch,
+};
+
+static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
+{
+	struct mii_bus *mii = ag->mii_bus;
+	struct ar7240sw *as;
+	struct switch_dev *swdev;
+	u32 ctrl;
+	u16 phy_id1;
+	u16 phy_id2;
+	u8 ver;
+	int i;
+
+	as = kzalloc(sizeof(*as), GFP_KERNEL);
+	if (!as)
+		return NULL;
+
+	ar7240sw_init(as, mii);
+
+	ctrl = ar7240sw_reg_read(as, AR7240_REG_MASK_CTRL);
+
+	ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) & AR7240_MASK_CTRL_VERSION_M;
+	if (ver != 1) {
+		pr_err("%s: unsupported chip, ctrl=%08x\n", ag->dev->name, ctrl);
+		return NULL;
+	}
+
+	phy_id1 = ar7240sw_phy_read(as, 0, MII_PHYSID1);
+	phy_id2 = ar7240sw_phy_read(as, 0, MII_PHYSID2);
+	if (phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) {
+		pr_err("%s: unknown phy id '%04x:%04x'\n",
+		       ag->dev->name, phy_id1, phy_id2);
+		return NULL;
+	}
+
+	swdev = &as->swdev;
+	swdev->name = "AR7240 built-in switch";
+	swdev->ports = AR7240_NUM_PORTS;
+	swdev->cpu_port = AR7240_PORT_CPU;
+	swdev->vlans = AR7240_MAX_VLANS;
+	swdev->ops = &ar7240_ops;
+
+	if (register_switch(&as->swdev, ag->dev) < 0) {
+	    kfree(as);
+	    return NULL;
+	}
+
+	printk("%s: Found an AR7240 built-in switch\n", ag->dev->name);
+
+	/* initialize defaults */
+	for (i = 0; i < AR7240_MAX_VLANS; i++)
+		as->vlan_id[i] = i;
+
+	as->vlan_table[0] = AR7240_PORT_MASK_ALL;
+
+	return as;
+}
+
+void ag71xx_ar7240_start(struct ag71xx *ag)
+{
+	struct ar7240sw *as = ag->phy_priv;
+
+	ar7240sw_reset(as);
+	ar7240sw_setup(as);
+
+	ag->speed = SPEED_1000;
+	ag->link = 1;
+	ag->duplex = 1;
+
+	ar7240_set_addr(as, ag->dev->dev_addr);
+	ar7240_hw_apply(&as->swdev);
+}
+
+void ag71xx_ar7240_stop(struct ag71xx *ag)
+{
+}
+
+int __init ag71xx_ar7240_init(struct ag71xx *ag)
+{
+	struct ar7240sw *as;
+
+	as = ar7240_probe(ag);
+	if (!as)
+		return -ENODEV;
+
+	ag->phy_priv = as;
+	ar7240sw_reset(as);
+
+	return 0;
+}
+
+void __exit ag71xx_ar7240_cleanup(struct ag71xx *ag)
+{
+	struct ar7240sw *as = ag->phy_priv;
+
+	if (!as)
+		return;
+
+	unregister_switch(&as->swdev);
+	kfree(as);
+	ag->phy_priv = NULL;
+}
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
index 9c76544af..eada693e7 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
@@ -44,9 +44,13 @@ static void ag71xx_phy_link_adjust(struct net_device *dev)
 
 void ag71xx_phy_start(struct ag71xx *ag)
 {
+	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+
 	if (ag->phy_dev) {
 		phy_start(ag->phy_dev);
 	} else {
+		if (pdata->has_ar7240_switch)
+			ag71xx_ar7240_start(ag);
 		ag->link = 1;
 		ag71xx_link_adjust(ag);
 	}
@@ -54,9 +58,13 @@ void ag71xx_phy_start(struct ag71xx *ag)
 
 void ag71xx_phy_stop(struct ag71xx *ag)
 {
+	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+
 	if (ag->phy_dev) {
 		phy_stop(ag->phy_dev);
 	} else {
+		if (pdata->has_ar7240_switch)
+			ag71xx_ar7240_stop(ag);
 		ag->link = 0;
 		ag71xx_link_adjust(ag);
 	}
@@ -200,6 +208,9 @@ int ag71xx_phy_connect(struct ag71xx *ag)
 		mutex_unlock(&ag->mii_bus->mdio_lock);
 	}
 
+	if (pdata->has_ar7240_switch)
+		return ag71xx_ar7240_init(ag);
+
 	if (pdata->phy_mask)
 		return ag71xx_phy_connect_multi(ag);
 
@@ -208,6 +219,10 @@ int ag71xx_phy_connect(struct ag71xx *ag)
 
 void ag71xx_phy_disconnect(struct ag71xx *ag)
 {
-	if (ag->phy_dev)
+	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+
+	if (pdata->has_ar7240_switch)
+		ag71xx_ar7240_cleanup(ag);
+	else if (ag->phy_dev)
 		phy_disconnect(ag->phy_dev);
 }