ath79: add new OF only target for QCA MIPS silicon

This target aims to replace ar71xx mid-term. The big part that is still
missing is making the MMIO/AHB wifi work using OF. NAND and mikrotik
subtargets will follow.

Signed-off-by: John Crispin <john@phrozen.org>

14 files changed, 4848 insertions, 0 deletions

diff --git a/target/linux/ath79/files/arch/mips/ath79/pci-ath9k-fixup.c b/target/linux/ath79/files/arch/mips/ath79/pci-ath9k-fixup.c
new file mode 100644
index 0000000000..2202351806
--- /dev/null
+++ b/target/linux/ath79/files/arch/mips/ath79/pci-ath9k-fixup.c
@@ -0,0 +1,126 @@
+/*
+ *  Atheros AP94 reference board PCI initialization
+ *
+ *  Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/pci.h>
+#include <linux/delay.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ath79.h>
+
+struct ath9k_fixup {
+	u16		*cal_data;
+	unsigned	slot;
+};
+
+static int ath9k_num_fixups;
+static struct ath9k_fixup ath9k_fixups[2];
+
+static void ath9k_pci_fixup(struct pci_dev *dev)
+{
+	void __iomem *mem;
+	u16 *cal_data = NULL;
+	u16 cmd;
+	u32 bar0;
+	u32 val;
+	unsigned i;
+
+	for (i = 0; i < ath9k_num_fixups; i++) {
+		if (ath9k_fixups[i].cal_data == NULL)
+			continue;
+
+		if (ath9k_fixups[i].slot != PCI_SLOT(dev->devfn))
+			continue;
+
+		cal_data = ath9k_fixups[i].cal_data;
+		break;
+	}
+
+	if (cal_data == NULL)
+		return;
+
+	if (*cal_data != 0xa55a) {
+		pr_err("pci %s: invalid calibration data\n", pci_name(dev));
+		return;
+	}
+
+	pr_info("pci %s: fixup device configuration\n", pci_name(dev));
+
+	mem = ioremap(AR71XX_PCI_MEM_BASE, 0x10000);
+	if (!mem) {
+		pr_err("pci %s: ioremap error\n", pci_name(dev));
+		return;
+	}
+
+	pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
+
+	switch (ath79_soc) {
+	case ATH79_SOC_AR7161:
+		pci_write_config_dword(dev, PCI_BASE_ADDRESS_0,
+				       AR71XX_PCI_MEM_BASE);
+		break;
+	case ATH79_SOC_AR7240:
+		pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0xffff);
+		break;
+
+	case ATH79_SOC_AR7241:
+	case ATH79_SOC_AR7242:
+		pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0x1000ffff);
+		break;
+	case ATH79_SOC_AR9344:
+		pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0x1000ffff);
+		break;
+
+	default:
+		BUG();
+	}
+
+	pci_read_config_word(dev, PCI_COMMAND, &cmd);
+	cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+	pci_write_config_word(dev, PCI_COMMAND, cmd);
+
+	/* set pointer to first reg address */
+	cal_data += 3;
+	while (*cal_data != 0xffff) {
+		u32 reg;
+		reg = *cal_data++;
+		val = *cal_data++;
+		val |= (*cal_data++) << 16;
+
+		__raw_writel(val, mem + reg);
+		udelay(100);
+	}
+
+	pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
+	dev->vendor = val & 0xffff;
+	dev->device = (val >> 16) & 0xffff;
+
+	pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
+	dev->revision = val & 0xff;
+	dev->class = val >> 8; /* upper 3 bytes */
+
+	pci_read_config_word(dev, PCI_COMMAND, &cmd);
+	cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
+	pci_write_config_word(dev, PCI_COMMAND, cmd);
+
+	pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
+
+	iounmap(mem);
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath9k_pci_fixup);
+
+void __init pci_enable_ath9k_fixup(unsigned slot, u16 *cal_data)
+{
+	if (ath9k_num_fixups >= ARRAY_SIZE(ath9k_fixups))
+		return;
+
+	ath9k_fixups[ath9k_num_fixups].slot = slot;
+	ath9k_fixups[ath9k_num_fixups].cal_data = cal_data;
+	ath9k_num_fixups++;
+}
diff --git a/target/linux/ath79/files/arch/mips/ath79/pci-ath9k-fixup.h b/target/linux/ath79/files/arch/mips/ath79/pci-ath9k-fixup.h
new file mode 100644
index 0000000000..5794941f08
--- /dev/null
+++ b/target/linux/ath79/files/arch/mips/ath79/pci-ath9k-fixup.h
@@ -0,0 +1,6 @@
+#ifndef _PCI_ATH9K_FIXUP
+#define _PCI_ATH9K_FIXUP
+
+void pci_enable_ath9k_fixup(unsigned slot, u16 *cal_data) __init;
+
+#endif /* _PCI_ATH9K_FIXUP */
diff --git a/target/linux/ath79/files/arch/mips/include/asm/fw/myloader/myloader.h b/target/linux/ath79/files/arch/mips/include/asm/fw/myloader/myloader.h
new file mode 100644
index 0000000000..8a99d566d7
--- /dev/null
+++ b/target/linux/ath79/files/arch/mips/include/asm/fw/myloader/myloader.h
@@ -0,0 +1,34 @@
+/*
+ *  Compex's MyLoader specific definitions
+ *
+ *  Copyright (C) 2006-2008 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+
+#ifndef _ASM_MIPS_FW_MYLOADER_H
+#define _ASM_MIPS_FW_MYLOADER_H
+
+#include <linux/myloader.h>
+
+struct myloader_info {
+	uint32_t	vid;
+	uint32_t	did;
+	uint32_t	svid;
+	uint32_t	sdid;
+	uint8_t		macs[MYLO_ETHADDR_COUNT][6];
+};
+
+#ifdef CONFIG_MYLOADER
+extern struct myloader_info *myloader_get_info(void) __init;
+#else
+static inline struct myloader_info *myloader_get_info(void)
+{
+	return NULL;
+}
+#endif /* CONFIG_MYLOADER */
+
+#endif /* _ASM_MIPS_FW_MYLOADER_H */
diff --git a/target/linux/ath79/files/drivers/mtd/tplinkpart.c b/target/linux/ath79/files/drivers/mtd/tplinkpart.c
new file mode 100644
index 0000000000..1b94163b83
--- /dev/null
+++ b/target/linux/ath79/files/drivers/mtd/tplinkpart.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/magic.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/version.h>
+
+#define TPLINK_NUM_PARTS	5
+#define TPLINK_HEADER_V1	0x01000000
+#define TPLINK_HEADER_V2	0x02000000
+#define MD5SUM_LEN		16
+
+#define TPLINK_ART_LEN		0x10000
+#define TPLINK_KERNEL_OFFS	0x20000
+#define TPLINK_64K_KERNEL_OFFS	0x10000
+
+struct tplink_fw_header {
+	uint32_t	version;	/* header version */
+	char		vendor_name[24];
+	char		fw_version[36];
+	uint32_t	hw_id;		/* hardware id */
+	uint32_t	hw_rev;		/* hardware revision */
+	uint32_t	unk1;
+	uint8_t		md5sum1[MD5SUM_LEN];
+	uint32_t	unk2;
+	uint8_t		md5sum2[MD5SUM_LEN];
+	uint32_t	unk3;
+	uint32_t	kernel_la;	/* kernel load address */
+	uint32_t	kernel_ep;	/* kernel entry point */
+	uint32_t	fw_length;	/* total length of the firmware */
+	uint32_t	kernel_ofs;	/* kernel data offset */
+	uint32_t	kernel_len;	/* kernel data length */
+	uint32_t	rootfs_ofs;	/* rootfs data offset */
+	uint32_t	rootfs_len;	/* rootfs data length */
+	uint32_t	boot_ofs;	/* bootloader data offset */
+	uint32_t	boot_len;	/* bootloader data length */
+	uint8_t		pad[360];
+} __attribute__ ((packed));
+
+static struct tplink_fw_header *
+tplink_read_header(struct mtd_info *mtd, size_t offset)
+{
+	struct tplink_fw_header *header;
+	size_t header_len;
+	size_t retlen;
+	int ret;
+	u32 t;
+
+	header = vmalloc(sizeof(*header));
+	if (!header)
+		goto err;
+
+	header_len = sizeof(struct tplink_fw_header);
+	ret = mtd_read(mtd, offset, header_len, &retlen,
+		       (unsigned char *) header);
+	if (ret)
+		goto err_free_header;
+
+	if (retlen != header_len)
+		goto err_free_header;
+
+	/* sanity checks */
+	t = be32_to_cpu(header->version);
+	if ((t != TPLINK_HEADER_V1) && (t != TPLINK_HEADER_V2))
+		goto err_free_header;
+
+	t = be32_to_cpu(header->kernel_ofs);
+	if (t != header_len)
+		goto err_free_header;
+
+	return header;
+
+err_free_header:
+	vfree(header);
+err:
+	return NULL;
+}
+
+static int tplink_check_rootfs_magic(struct mtd_info *mtd, size_t offset)
+{
+	u32 magic;
+	size_t retlen;
+	int ret;
+
+	ret = mtd_read(mtd, offset, sizeof(magic), &retlen,
+		       (unsigned char *) &magic);
+	if (ret)
+		return ret;
+
+	if (retlen != sizeof(magic))
+		return -EIO;
+
+	if (le32_to_cpu(magic) != SQUASHFS_MAGIC &&
+	    magic != 0x19852003)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int tplink_parse_partitions_offset(struct mtd_info *master,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
+				   struct mtd_partition **pparts,
+#else
+				   const struct mtd_partition **pparts,
+#endif
+				   struct mtd_part_parser_data *data,
+				   size_t offset)
+{
+	struct mtd_partition *parts;
+	struct tplink_fw_header *header;
+	int nr_parts;
+	size_t art_offset;
+	size_t rootfs_offset;
+	size_t squashfs_offset;
+	int ret;
+
+	nr_parts = TPLINK_NUM_PARTS;
+	parts = kzalloc(nr_parts * sizeof(struct mtd_partition), GFP_KERNEL);
+	if (!parts) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	header = tplink_read_header(master, offset);
+	if (!header) {
+		pr_notice("%s: no TP-Link header found\n", master->name);
+		ret = -ENODEV;
+		goto err_free_parts;
+	}
+
+	squashfs_offset = offset + sizeof(struct tplink_fw_header) +
+			  be32_to_cpu(header->kernel_len);
+
+	ret = tplink_check_rootfs_magic(master, squashfs_offset);
+	if (ret == 0)
+		rootfs_offset = squashfs_offset;
+	else
+		rootfs_offset = offset + be32_to_cpu(header->rootfs_ofs);
+
+	art_offset = master->size - TPLINK_ART_LEN;
+
+	parts[0].name = "u-boot";
+	parts[0].offset = 0;
+	parts[0].size = offset;
+	parts[0].mask_flags = MTD_WRITEABLE;
+
+	parts[1].name = "kernel";
+	parts[1].offset = offset;
+	parts[1].size = rootfs_offset - offset;
+
+	parts[2].name = "rootfs";
+	parts[2].offset = rootfs_offset;
+	parts[2].size = art_offset - rootfs_offset;
+
+	parts[3].name = "art";
+	parts[3].offset = art_offset;
+	parts[3].size = TPLINK_ART_LEN;
+	parts[3].mask_flags = MTD_WRITEABLE;
+
+	parts[4].name = "firmware";
+	parts[4].offset = offset;
+	parts[4].size = art_offset - offset;
+
+	vfree(header);
+
+	*pparts = parts;
+	return nr_parts;
+
+err_free_parts:
+	kfree(parts);
+err:
+	*pparts = NULL;
+	return ret;
+}
+
+static int tplink_parse_partitions(struct mtd_info *master,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
+				   struct mtd_partition **pparts,
+#else
+				   const struct mtd_partition **pparts,
+#endif
+				   struct mtd_part_parser_data *data)
+{
+	return tplink_parse_partitions_offset(master, pparts, data,
+		                              TPLINK_KERNEL_OFFS);
+}
+
+static int tplink_parse_64k_partitions(struct mtd_info *master,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
+				   struct mtd_partition **pparts,
+#else
+				   const struct mtd_partition **pparts,
+#endif
+				   struct mtd_part_parser_data *data)
+{
+	return tplink_parse_partitions_offset(master, pparts, data,
+		                              TPLINK_64K_KERNEL_OFFS);
+}
+
+static struct mtd_part_parser tplink_parser = {
+	.owner		= THIS_MODULE,
+	.parse_fn	= tplink_parse_partitions,
+	.name		= "tp-link",
+};
+
+static struct mtd_part_parser tplink_64k_parser = {
+	.owner		= THIS_MODULE,
+	.parse_fn	= tplink_parse_64k_partitions,
+	.name		= "tp-link-64k",
+};
+
+static int __init tplink_parser_init(void)
+{
+	register_mtd_parser(&tplink_parser);
+	register_mtd_parser(&tplink_64k_parser);
+
+	return 0;
+}
+
+module_init(tplink_parser_init);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
diff --git a/target/linux/ath79/files/drivers/net/dsa/mv88e6063.c b/target/linux/ath79/files/drivers/net/dsa/mv88e6063.c
new file mode 100644
index 0000000000..5b6da713f4
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/dsa/mv88e6063.c
@@ -0,0 +1,289 @@
+/*
+ * net/dsa/mv88e6063.c - Driver for Marvell 88e6063 switch chips
+ * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This driver was base on: net/dsa/mv88e6060.c
+ *   net/dsa/mv88e6063.c - Driver for Marvell 88e6060 switch chips
+ *   Copyright (c) 2008-2009 Marvell Semiconductor
+ *
+ * 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.
+ */
+
+#include <linux/version.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <net/dsa.h>
+#include <linux/version.h>
+
+#define REG_BASE		0x10
+#define REG_PHY(p)		(REG_BASE + (p))
+#define REG_PORT(p)		(REG_BASE + 8 + (p))
+#define REG_GLOBAL		(REG_BASE + 0x0f)
+#define NUM_PORTS		7
+
+static int reg_read(struct dsa_switch *ds, int addr, int reg)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
+	struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev);
+	return mdiobus_read(bus, addr, reg);
+#else
+	struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->dev);
+	return mdiobus_read(bus, addr, reg);
+#endif
+}
+
+#define REG_READ(addr, reg)					\
+	({							\
+		int __ret;					\
+								\
+		__ret = reg_read(ds, addr, reg);		\
+		if (__ret < 0)					\
+			return __ret;				\
+		__ret;						\
+	})
+
+
+static int reg_write(struct dsa_switch *ds, int addr, int reg, u16 val)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
+	struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev);
+	return mdiobus_write(bus, addr, reg, val);
+#else
+	struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->dev);
+	return mdiobus_write(bus, addr, reg, val);
+#endif
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,8,0)
+static enum dsa_tag_protocol mv88e6063_get_tag_protocol(struct dsa_switch *ds)
+{
+	return DSA_TAG_PROTO_TRAILER;
+}
+#endif
+
+#define REG_WRITE(addr, reg, val)				\
+	({							\
+		int __ret;					\
+								\
+		__ret = reg_write(ds, addr, reg, val);		\
+		if (__ret < 0)					\
+			return __ret;				\
+	})
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
+static char *mv88e6063_drv_probe(struct device *host_dev, int sw_addr)
+#else
+static const char *mv88e6063_drv_probe(struct device *dsa_dev,
+				       struct device *host_dev, int sw_addr,
+				       void **_priv)
+#endif
+{
+	struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
+	int ret;
+
+	if (!bus)
+		return NULL;
+
+	ret = mdiobus_read(bus, REG_PORT(0), 0x03);
+	if (ret >= 0) {
+		ret &= 0xfff0;
+		if (ret == 0x1530)
+			return "Marvell 88E6063";
+	}
+
+	return NULL;
+}
+
+static int mv88e6063_switch_reset(struct dsa_switch *ds)
+{
+	int i;
+	int ret;
+
+	/*
+	 * Set all ports to the disabled state.
+	 */
+	for (i = 0; i < NUM_PORTS; i++) {
+		ret = REG_READ(REG_PORT(i), 0x04);
+		REG_WRITE(REG_PORT(i), 0x04, ret & 0xfffc);
+	}
+
+	/*
+	 * Wait for transmit queues to drain.
+	 */
+	msleep(2);
+
+	/*
+	 * Reset the switch.
+	 */
+	REG_WRITE(REG_GLOBAL, 0x0a, 0xa130);
+
+	/*
+	 * Wait up to one second for reset to complete.
+	 */
+	for (i = 0; i < 1000; i++) {
+		ret = REG_READ(REG_GLOBAL, 0x00);
+		if ((ret & 0x8000) == 0x0000)
+			break;
+
+		msleep(1);
+	}
+	if (i == 1000)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int mv88e6063_setup_global(struct dsa_switch *ds)
+{
+	/*
+	 * Disable discarding of frames with excessive collisions,
+	 * set the maximum frame size to 1536 bytes, and mask all
+	 * interrupt sources.
+	 */
+	REG_WRITE(REG_GLOBAL, 0x04, 0x0800);
+
+	/*
+	 * Enable automatic address learning, set the address
+	 * database size to 1024 entries, and set the default aging
+	 * time to 5 minutes.
+	 */
+	REG_WRITE(REG_GLOBAL, 0x0a, 0x2130);
+
+	return 0;
+}
+
+static int mv88e6063_setup_port(struct dsa_switch *ds, int p)
+{
+	int addr = REG_PORT(p);
+
+	/*
+	 * Do not force flow control, disable Ingress and Egress
+	 * Header tagging, disable VLAN tunneling, and set the port
+	 * state to Forwarding.  Additionally, if this is the CPU
+	 * port, enable Ingress and Egress Trailer tagging mode.
+	 */
+	REG_WRITE(addr, 0x04, dsa_is_cpu_port(ds, p) ?  0x4103 : 0x0003);
+
+	/*
+	 * Port based VLAN map: give each port its own address
+	 * database, allow the CPU port to talk to each of the 'real'
+	 * ports, and allow each of the 'real' ports to only talk to
+	 * the CPU port.
+	 */
+	REG_WRITE(addr, 0x06,
+			((p & 0xf) << 12) |
+			 (dsa_is_cpu_port(ds, p) ?
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0)
+				ds->phys_port_mask :
+#else
+				ds->enabled_port_mask :
+#endif
+				(1 << ds->dst->cpu_port)));
+
+	/*
+	 * Port Association Vector: when learning source addresses
+	 * of packets, add the address to the address database using
+	 * a port bitmap that has only the bit for this port set and
+	 * the other bits clear.
+	 */
+	REG_WRITE(addr, 0x0b, 1 << p);
+
+	return 0;
+}
+
+static int mv88e6063_setup(struct dsa_switch *ds)
+{
+	int i;
+	int ret;
+
+	ret = mv88e6063_switch_reset(ds);
+	if (ret < 0)
+		return ret;
+
+	/* @@@ initialise atu */
+
+	ret = mv88e6063_setup_global(ds);
+	if (ret < 0)
+		return ret;
+
+	for (i = 0; i < NUM_PORTS; i++) {
+		ret = mv88e6063_setup_port(ds, i);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int mv88e6063_set_addr(struct dsa_switch *ds, u8 *addr)
+{
+	REG_WRITE(REG_GLOBAL, 0x01, (addr[0] << 8) | addr[1]);
+	REG_WRITE(REG_GLOBAL, 0x02, (addr[2] << 8) | addr[3]);
+	REG_WRITE(REG_GLOBAL, 0x03, (addr[4] << 8) | addr[5]);
+
+	return 0;
+}
+
+static int mv88e6063_port_to_phy_addr(int port)
+{
+	if (port >= 0 && port <= NUM_PORTS)
+		return REG_PHY(port);
+	return -1;
+}
+
+static int mv88e6063_phy_read(struct dsa_switch *ds, int port, int regnum)
+{
+	int addr;
+
+	addr = mv88e6063_port_to_phy_addr(port);
+	if (addr == -1)
+		return 0xffff;
+
+	return reg_read(ds, addr, regnum);
+}
+
+static int
+mv88e6063_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val)
+{
+	int addr;
+
+	addr = mv88e6063_port_to_phy_addr(port);
+	if (addr == -1)
+		return 0xffff;
+
+	return reg_write(ds, addr, regnum, val);
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,9,0)
+static struct dsa_switch_driver mv88e6063_switch_ops = {
+#else
+static struct dsa_switch_ops mv88e6063_switch_ops = {
+#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0)
+	.tag_protocol	= htons(ETH_P_TRAILER),
+#else
+	.get_tag_protocol = mv88e6063_get_tag_protocol,
+#endif
+	.probe		= mv88e6063_drv_probe,
+	.setup		= mv88e6063_setup,
+	.set_addr	= mv88e6063_set_addr,
+	.phy_read	= mv88e6063_phy_read,
+	.phy_write	= mv88e6063_phy_write,
+};
+
+static int __init mv88e6063_init(void)
+{
+	register_switch_driver(&mv88e6063_switch_ops);
+	return 0;
+}
+module_init(mv88e6063_init);
+
+static void __exit mv88e6063_cleanup(void)
+{
+	unregister_switch_driver(&mv88e6063_switch_ops);
+}
+module_exit(mv88e6063_cleanup);
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/Kconfig b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/Kconfig
new file mode 100644
index 0000000000..4df2d21e34
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/Kconfig
@@ -0,0 +1,25 @@
+config AG71XX
+	tristate "Atheros AR7XXX/AR9XXX built-in ethernet mac support"
+	depends on ATH79
+	select PHYLIB
+	help
+	  If you wish to compile a kernel for AR7XXX/91XXX and enable
+	  ethernet support, then you should always answer Y to this.
+
+if AG71XX
+
+config AG71XX_DEBUG
+	bool "Atheros AR71xx built-in ethernet driver debugging"
+	default n
+	help
+	  Atheros AR71xx built-in ethernet driver debugging messages.
+
+config AG71XX_DEBUG_FS
+	bool "Atheros AR71xx built-in ethernet driver debugfs support"
+	depends on DEBUG_FS
+	default n
+	help
+	  Say Y, if you need access to various statistics provided by
+	  the ag71xx driver.
+
+endif
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/Makefile b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/Makefile
new file mode 100644
index 0000000000..7f396ad46e
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/Makefile
@@ -0,0 +1,14 @@
+#
+# Makefile for the Atheros AR71xx built-in ethernet macs
+#
+
+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-$(CONFIG_AG71XX_DEBUG_FS)	+= ag71xx_debugfs.o
+
+obj-$(CONFIG_AG71XX)	+= ag71xx.o
+
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h
new file mode 100644
index 0000000000..22b22522a3
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h
@@ -0,0 +1,453 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#ifndef __AG71XX_H
+#define __AG71XX_H
+
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/random.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/ethtool.h>
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/phy.h>
+#include <linux/skbuff.h>
+#include <linux/dma-mapping.h>
+#include <linux/workqueue.h>
+#include <linux/reset.h>
+#include <linux/of.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+
+#include <linux/bitops.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ath79.h>
+
+#define AG71XX_DRV_NAME		"ag71xx"
+
+/*
+ * For our NAPI weight bigger does *NOT* mean better - it means more
+ * D-cache misses and lots more wasted cycles than we'll ever
+ * possibly gain from saving instructions.
+ */
+#define AG71XX_NAPI_WEIGHT	32
+#define AG71XX_OOM_REFILL	(1 + HZ/10)
+
+#define AG71XX_INT_ERR	(AG71XX_INT_RX_BE | AG71XX_INT_TX_BE)
+#define AG71XX_INT_TX	(AG71XX_INT_TX_PS)
+#define AG71XX_INT_RX	(AG71XX_INT_RX_PR | AG71XX_INT_RX_OF)
+
+#define AG71XX_INT_POLL	(AG71XX_INT_RX | AG71XX_INT_TX)
+#define AG71XX_INT_INIT	(AG71XX_INT_ERR | AG71XX_INT_POLL)
+
+#define AG71XX_TX_MTU_LEN	1540
+
+#define AG71XX_TX_RING_SPLIT		512
+#define AG71XX_TX_RING_DS_PER_PKT	DIV_ROUND_UP(AG71XX_TX_MTU_LEN, \
+						     AG71XX_TX_RING_SPLIT)
+#define AG71XX_TX_RING_SIZE_DEFAULT	128
+#define AG71XX_RX_RING_SIZE_DEFAULT	256
+
+#define AG71XX_TX_RING_SIZE_MAX		128
+#define AG71XX_RX_RING_SIZE_MAX		256
+
+#ifdef CONFIG_AG71XX_DEBUG
+#define DBG(fmt, args...)	pr_debug(fmt, ## args)
+#else
+#define DBG(fmt, args...)	do {} while (0)
+#endif
+
+#define ag71xx_assert(_cond)						\
+do {									\
+	if (_cond)							\
+		break;							\
+	printk("%s,%d: assertion failed\n", __FILE__, __LINE__);	\
+	BUG();								\
+} while (0)
+
+struct ag71xx_desc {
+	u32	data;
+	u32	ctrl;
+#define DESC_EMPTY	BIT(31)
+#define DESC_MORE	BIT(24)
+#define DESC_PKTLEN_M	0xfff
+	u32	next;
+	u32	pad;
+} __attribute__((aligned(4)));
+
+#define AG71XX_DESC_SIZE	roundup(sizeof(struct ag71xx_desc), \
+					L1_CACHE_BYTES)
+
+struct ag71xx_buf {
+	union {
+		struct sk_buff	*skb;
+		void		*rx_buf;
+	};
+	union {
+		dma_addr_t	dma_addr;
+		unsigned int		len;
+	};
+};
+
+struct ag71xx_ring {
+	struct ag71xx_buf	*buf;
+	u8			*descs_cpu;
+	dma_addr_t		descs_dma;
+	u16			desc_split;
+	u16			order;
+	unsigned int		curr;
+	unsigned int		dirty;
+};
+
+struct ag71xx_int_stats {
+	unsigned long		rx_pr;
+	unsigned long		rx_be;
+	unsigned long		rx_of;
+	unsigned long		tx_ps;
+	unsigned long		tx_be;
+	unsigned long		tx_ur;
+	unsigned long		total;
+};
+
+struct ag71xx_napi_stats {
+	unsigned long		napi_calls;
+	unsigned long		rx_count;
+	unsigned long		rx_packets;
+	unsigned long		rx_packets_max;
+	unsigned long		tx_count;
+	unsigned long		tx_packets;
+	unsigned long		tx_packets_max;
+
+	unsigned long		rx[AG71XX_NAPI_WEIGHT + 1];
+	unsigned long		tx[AG71XX_NAPI_WEIGHT + 1];
+};
+
+struct ag71xx_debug {
+	struct dentry		*debugfs_dir;
+
+	struct ag71xx_int_stats int_stats;
+	struct ag71xx_napi_stats napi_stats;
+};
+
+struct ag71xx {
+	/*
+	 * Critical data related to the per-packet data path are clustered
+	 * early in this structure to help improve the D-cache footprint.
+	 */
+	struct ag71xx_ring	rx_ring ____cacheline_aligned;
+	struct ag71xx_ring	tx_ring ____cacheline_aligned;
+
+	u16			desc_pktlen_mask;
+	u16			rx_buf_size;
+	u8			rx_buf_offset;
+	u8			tx_hang_workaround:1;
+
+	struct net_device	*dev;
+	struct platform_device  *pdev;
+	spinlock_t		lock;
+	struct napi_struct	napi;
+	u32			msg_enable;
+
+	/*
+	 * From this point onwards we're not looking at per-packet fields.
+	 */
+	void __iomem		*mac_base;
+	void __iomem		*mii_base;
+	struct regmap		*mii_regmap;
+
+	struct ag71xx_desc	*stop_desc;
+	dma_addr_t		stop_desc_dma;
+
+	struct mii_bus		*mii_bus;
+	struct phy_device	*phy_dev;
+	void			*phy_priv;
+	int			phy_if_mode;
+
+	unsigned int		link;
+	unsigned int		speed;
+	int			duplex;
+
+	struct delayed_work	restart_work;
+	struct timer_list	oom_timer;
+
+	struct reset_control *mac_reset;
+	struct reset_control *phy_reset;
+	struct reset_control *mdio_reset;
+
+	u32			fifodata[3];
+	u32			plldata[3];
+	u32			pllreg[3];
+	struct regmap		*pllregmap;
+
+#ifdef CONFIG_AG71XX_DEBUG_FS
+	struct ag71xx_debug	debug;
+#endif
+};
+
+extern struct ethtool_ops ag71xx_ethtool_ops;
+void ag71xx_link_adjust(struct ag71xx *ag);
+
+int ag71xx_phy_connect(struct ag71xx *ag);
+void ag71xx_phy_disconnect(struct ag71xx *ag);
+
+static inline int ag71xx_desc_empty(struct ag71xx_desc *desc)
+{
+	return (desc->ctrl & DESC_EMPTY) != 0;
+}
+
+static inline struct ag71xx_desc *
+ag71xx_ring_desc(struct ag71xx_ring *ring, int idx)
+{
+	return (struct ag71xx_desc *) &ring->descs_cpu[idx * AG71XX_DESC_SIZE];
+}
+
+static inline int
+ag71xx_ring_size_order(int size)
+{
+	return fls(size - 1);
+}
+
+/* Register offsets */
+#define AG71XX_REG_MAC_CFG1	0x0000
+#define AG71XX_REG_MAC_CFG2	0x0004
+#define AG71XX_REG_MAC_IPG	0x0008
+#define AG71XX_REG_MAC_HDX	0x000c
+#define AG71XX_REG_MAC_MFL	0x0010
+#define AG71XX_REG_MII_CFG	0x0020
+#define AG71XX_REG_MII_CMD	0x0024
+#define AG71XX_REG_MII_ADDR	0x0028
+#define AG71XX_REG_MII_CTRL	0x002c
+#define AG71XX_REG_MII_STATUS	0x0030
+#define AG71XX_REG_MII_IND	0x0034
+#define AG71XX_REG_MAC_IFCTL	0x0038
+#define AG71XX_REG_MAC_ADDR1	0x0040
+#define AG71XX_REG_MAC_ADDR2	0x0044
+#define AG71XX_REG_FIFO_CFG0	0x0048
+#define AG71XX_REG_FIFO_CFG1	0x004c
+#define AG71XX_REG_FIFO_CFG2	0x0050
+#define AG71XX_REG_FIFO_CFG3	0x0054
+#define AG71XX_REG_FIFO_CFG4	0x0058
+#define AG71XX_REG_FIFO_CFG5	0x005c
+#define AG71XX_REG_FIFO_RAM0	0x0060
+#define AG71XX_REG_FIFO_RAM1	0x0064
+#define AG71XX_REG_FIFO_RAM2	0x0068
+#define AG71XX_REG_FIFO_RAM3	0x006c
+#define AG71XX_REG_FIFO_RAM4	0x0070
+#define AG71XX_REG_FIFO_RAM5	0x0074
+#define AG71XX_REG_FIFO_RAM6	0x0078
+#define AG71XX_REG_FIFO_RAM7	0x007c
+
+#define AG71XX_REG_TX_CTRL	0x0180
+#define AG71XX_REG_TX_DESC	0x0184
+#define AG71XX_REG_TX_STATUS	0x0188
+#define AG71XX_REG_RX_CTRL	0x018c
+#define AG71XX_REG_RX_DESC	0x0190
+#define AG71XX_REG_RX_STATUS	0x0194
+#define AG71XX_REG_INT_ENABLE	0x0198
+#define AG71XX_REG_INT_STATUS	0x019c
+
+#define AG71XX_REG_FIFO_DEPTH	0x01a8
+#define AG71XX_REG_RX_SM	0x01b0
+#define AG71XX_REG_TX_SM	0x01b4
+
+#define MAC_CFG1_TXE		BIT(0)	/* Tx Enable */
+#define MAC_CFG1_STX		BIT(1)	/* Synchronize Tx Enable */
+#define MAC_CFG1_RXE		BIT(2)	/* Rx Enable */
+#define MAC_CFG1_SRX		BIT(3)	/* Synchronize Rx Enable */
+#define MAC_CFG1_TFC		BIT(4)	/* Tx Flow Control Enable */
+#define MAC_CFG1_RFC		BIT(5)	/* Rx Flow Control Enable */
+#define MAC_CFG1_LB		BIT(8)	/* Loopback mode */
+#define MAC_CFG1_SR		BIT(31)	/* Soft Reset */
+
+#define MAC_CFG2_FDX		BIT(0)
+#define MAC_CFG2_CRC_EN		BIT(1)
+#define MAC_CFG2_PAD_CRC_EN	BIT(2)
+#define MAC_CFG2_LEN_CHECK	BIT(4)
+#define MAC_CFG2_HUGE_FRAME_EN	BIT(5)
+#define MAC_CFG2_IF_1000	BIT(9)
+#define MAC_CFG2_IF_10_100	BIT(8)
+
+#define FIFO_CFG0_WTM		BIT(0)	/* Watermark Module */
+#define FIFO_CFG0_RXS		BIT(1)	/* Rx System Module */
+#define FIFO_CFG0_RXF		BIT(2)	/* Rx Fabric Module */
+#define FIFO_CFG0_TXS		BIT(3)	/* Tx System Module */
+#define FIFO_CFG0_TXF		BIT(4)	/* Tx Fabric Module */
+#define FIFO_CFG0_ALL	(FIFO_CFG0_WTM | FIFO_CFG0_RXS | FIFO_CFG0_RXF \
+			| FIFO_CFG0_TXS | FIFO_CFG0_TXF)
+
+#define FIFO_CFG0_ENABLE_SHIFT	8
+
+#define FIFO_CFG4_DE		BIT(0)	/* Drop Event */
+#define FIFO_CFG4_DV		BIT(1)	/* RX_DV Event */
+#define FIFO_CFG4_FC		BIT(2)	/* False Carrier */
+#define FIFO_CFG4_CE		BIT(3)	/* Code Error */
+#define FIFO_CFG4_CR		BIT(4)	/* CRC error */
+#define FIFO_CFG4_LM		BIT(5)	/* Length Mismatch */
+#define FIFO_CFG4_LO		BIT(6)	/* Length out of range */
+#define FIFO_CFG4_OK		BIT(7)	/* Packet is OK */
+#define FIFO_CFG4_MC		BIT(8)	/* Multicast Packet */
+#define FIFO_CFG4_BC		BIT(9)	/* Broadcast Packet */
+#define FIFO_CFG4_DR		BIT(10)	/* Dribble */
+#define FIFO_CFG4_LE		BIT(11)	/* Long Event */
+#define FIFO_CFG4_CF		BIT(12)	/* Control Frame */
+#define FIFO_CFG4_PF		BIT(13)	/* Pause Frame */
+#define FIFO_CFG4_UO		BIT(14)	/* Unsupported Opcode */
+#define FIFO_CFG4_VT		BIT(15)	/* VLAN tag detected */
+#define FIFO_CFG4_FT		BIT(16)	/* Frame Truncated */
+#define FIFO_CFG4_UC		BIT(17)	/* Unicast Packet */
+
+#define FIFO_CFG5_DE		BIT(0)	/* Drop Event */
+#define FIFO_CFG5_DV		BIT(1)	/* RX_DV Event */
+#define FIFO_CFG5_FC		BIT(2)	/* False Carrier */
+#define FIFO_CFG5_CE		BIT(3)	/* Code Error */
+#define FIFO_CFG5_LM		BIT(4)	/* Length Mismatch */
+#define FIFO_CFG5_LO		BIT(5)	/* Length Out of Range */
+#define FIFO_CFG5_OK		BIT(6)	/* Packet is OK */
+#define FIFO_CFG5_MC		BIT(7)	/* Multicast Packet */
+#define FIFO_CFG5_BC		BIT(8)	/* Broadcast Packet */
+#define FIFO_CFG5_DR		BIT(9)	/* Dribble */
+#define FIFO_CFG5_CF		BIT(10)	/* Control Frame */
+#define FIFO_CFG5_PF		BIT(11)	/* Pause Frame */
+#define FIFO_CFG5_UO		BIT(12)	/* Unsupported Opcode */
+#define FIFO_CFG5_VT		BIT(13)	/* VLAN tag detected */
+#define FIFO_CFG5_LE		BIT(14)	/* Long Event */
+#define FIFO_CFG5_FT		BIT(15)	/* Frame Truncated */
+#define FIFO_CFG5_16		BIT(16)	/* unknown */
+#define FIFO_CFG5_17		BIT(17)	/* unknown */
+#define FIFO_CFG5_SF		BIT(18)	/* Short Frame */
+#define FIFO_CFG5_BM		BIT(19)	/* Byte Mode */
+
+#define AG71XX_INT_TX_PS	BIT(0)
+#define AG71XX_INT_TX_UR	BIT(1)
+#define AG71XX_INT_TX_BE	BIT(3)
+#define AG71XX_INT_RX_PR	BIT(4)
+#define AG71XX_INT_RX_OF	BIT(6)
+#define AG71XX_INT_RX_BE	BIT(7)
+
+#define MAC_IFCTL_SPEED		BIT(16)
+
+#define MII_CFG_CLK_DIV_4	0
+#define MII_CFG_CLK_DIV_6	2
+#define MII_CFG_CLK_DIV_8	3
+#define MII_CFG_CLK_DIV_10	4
+#define MII_CFG_CLK_DIV_14	5
+#define MII_CFG_CLK_DIV_20	6
+#define MII_CFG_CLK_DIV_28	7
+#define MII_CFG_CLK_DIV_34	8
+#define MII_CFG_CLK_DIV_42	9
+#define MII_CFG_CLK_DIV_50	10
+#define MII_CFG_CLK_DIV_58	11
+#define MII_CFG_CLK_DIV_66	12
+#define MII_CFG_CLK_DIV_74	13
+#define MII_CFG_CLK_DIV_82	14
+#define MII_CFG_CLK_DIV_98	15
+#define MII_CFG_RESET		BIT(31)
+
+#define MII_CMD_WRITE		0x0
+#define MII_CMD_READ		0x1
+#define MII_ADDR_SHIFT		8
+#define MII_IND_BUSY		BIT(0)
+#define MII_IND_INVALID		BIT(2)
+
+#define TX_CTRL_TXE		BIT(0)	/* Tx Enable */
+
+#define TX_STATUS_PS		BIT(0)	/* Packet Sent */
+#define TX_STATUS_UR		BIT(1)	/* Tx Underrun */
+#define TX_STATUS_BE		BIT(3)	/* Bus Error */
+
+#define RX_CTRL_RXE		BIT(0)	/* Rx Enable */
+
+#define RX_STATUS_PR		BIT(0)	/* Packet Received */
+#define RX_STATUS_OF		BIT(2)	/* Rx Overflow */
+#define RX_STATUS_BE		BIT(3)	/* Bus Error */
+
+static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value)
+{
+	__raw_writel(value, ag->mac_base + reg);
+	/* flush write */
+	(void) __raw_readl(ag->mac_base + reg);
+}
+
+static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg)
+{
+	return __raw_readl(ag->mac_base + reg);
+}
+
+static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask)
+{
+	void __iomem *r;
+
+	r = ag->mac_base + reg;
+	__raw_writel(__raw_readl(r) | mask, r);
+	/* flush write */
+	(void) __raw_readl(r);
+}
+
+static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask)
+{
+	void __iomem *r;
+
+	r = ag->mac_base + reg;
+	__raw_writel(__raw_readl(r) & ~mask, r);
+	/* flush write */
+	(void) __raw_readl(r);
+}
+
+static inline void ag71xx_int_enable(struct ag71xx *ag, u32 ints)
+{
+	ag71xx_sb(ag, AG71XX_REG_INT_ENABLE, ints);
+}
+
+static inline void ag71xx_int_disable(struct ag71xx *ag, u32 ints)
+{
+	ag71xx_cb(ag, AG71XX_REG_INT_ENABLE, ints);
+}
+
+#ifdef CONFIG_AG71XX_DEBUG_FS
+int ag71xx_debugfs_root_init(void);
+void ag71xx_debugfs_root_exit(void);
+int ag71xx_debugfs_init(struct ag71xx *ag);
+void ag71xx_debugfs_exit(struct ag71xx *ag);
+void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status);
+void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx);
+#else
+static inline int ag71xx_debugfs_root_init(void) { return 0; }
+static inline void ag71xx_debugfs_root_exit(void) {}
+static inline int ag71xx_debugfs_init(struct ag71xx *ag) { return 0; }
+static inline void ag71xx_debugfs_exit(struct ag71xx *ag) {}
+static inline void ag71xx_debugfs_update_int_stats(struct ag71xx *ag,
+						   u32 status) {}
+static inline void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag,
+						    int rx, int tx) {}
+#endif /* CONFIG_AG71XX_DEBUG_FS */
+
+int ag71xx_ar7240_init(struct ag71xx *ag, struct device_node *np);
+void ag71xx_ar7240_cleanup(struct ag71xx *ag);
+void ag71xx_ar7240_start(struct ag71xx *ag);
+
+int ag71xx_mdio_init(struct ag71xx *ag);
+void ag71xx_mdio_cleanup(struct ag71xx *ag);
+int ag71xx_mdio_mii_read(struct mii_bus *bus, int addr, int reg);
+int ag71xx_mdio_mii_write(struct mii_bus *bus, int addr, int reg, u16 val);
+
+int ar7240sw_phy_read(struct mii_bus *mii, int addr, int reg);
+int ar7240sw_phy_write(struct mii_bus *mii, int addr, int reg, u16 val);
+
+#endif /* _AG71XX_H */
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
new file mode 100644
index 0000000000..52c0f964cf
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
@@ -0,0 +1,1340 @@
+/*
+ *  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@nbd.name>
+ *
+ *  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_VERSION_AR7240 0x01
+#define   AR7240_MASK_CTRL_VERSION_AR934X 0x02
+#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(11)
+#define AR9340_GLOBAL_CTRL_MTU_M	BITM(14)
+
+#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_ATU			0x50
+#define AR7240_ATU_FLUSH_ALL		0x1
+
+#define AR7240_REG_AT_CTRL		0x5c
+#define AR7240_AT_CTRL_AGE_TIME		BITS(0, 15)
+#define AR7240_AT_CTRL_AGE_EN		BIT(17)
+#define AR7240_AT_CTRL_LEARN_CHANGE	BIT(18)
+#define AR7240_AT_CTRL_RESERVED		BIT(19)
+#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_MIRROR_PORT_M		BITM(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_M		BITM(3)
+#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_S	0
+#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 AR934X_PHY_ID1		0x004d
+#define AR934X_PHY_ID2		0xd042
+
+#define AR7240_MAX_VLANS	16
+
+#define AR934X_REG_OPER_MODE0		0x04
+#define   AR934X_OPER_MODE0_MAC_GMII_EN	BIT(6)
+#define   AR934X_OPER_MODE0_PHY_MII_EN	BIT(10)
+
+#define AR934X_REG_OPER_MODE1		0x08
+#define   AR934X_REG_OPER_MODE1_PHY4_MII_EN	BIT(28)
+
+#define AR934X_REG_FLOOD_MASK		0x2c
+#define   AR934X_FLOOD_MASK_MC_DP(_p)	BIT(16 + (_p))
+#define   AR934X_FLOOD_MASK_BC_DP(_p)	BIT(25 + (_p))
+
+#define AR934X_REG_QM_CTRL		0x3c
+#define   AR934X_QM_CTRL_ARP_EN		BIT(15)
+
+#define AR934X_REG_AT_CTRL		0x5c
+#define   AR934X_AT_CTRL_AGE_TIME	BITS(0, 15)
+#define   AR934X_AT_CTRL_AGE_EN		BIT(17)
+#define   AR934X_AT_CTRL_LEARN_CHANGE	BIT(18)
+
+#define AR934X_MIB_ENABLE		BIT(30)
+
+#define AR934X_REG_PORT_BASE(_port)	(0x100 + (_port) * 0x100)
+
+#define AR934X_REG_PORT_VLAN1(_port)	(AR934X_REG_PORT_BASE((_port)) + 0x08)
+#define   AR934X_PORT_VLAN1_DEFAULT_SVID_S		0
+#define   AR934X_PORT_VLAN1_FORCE_DEFAULT_VID_EN 	BIT(12)
+#define   AR934X_PORT_VLAN1_PORT_TLS_MODE		BIT(13)
+#define   AR934X_PORT_VLAN1_PORT_VLAN_PROP_EN		BIT(14)
+#define   AR934X_PORT_VLAN1_PORT_CLONE_EN		BIT(15)
+#define   AR934X_PORT_VLAN1_DEFAULT_CVID_S		16
+#define   AR934X_PORT_VLAN1_FORCE_PORT_VLAN_EN		BIT(28)
+#define   AR934X_PORT_VLAN1_ING_PORT_PRI_S		29
+
+#define AR934X_REG_PORT_VLAN2(_port)	(AR934X_REG_PORT_BASE((_port)) + 0x0c)
+#define   AR934X_PORT_VLAN2_PORT_VID_MEM_S		16
+#define   AR934X_PORT_VLAN2_8021Q_MODE_S		30
+#define   AR934X_PORT_VLAN2_8021Q_MODE_PORT_ONLY	0
+#define   AR934X_PORT_VLAN2_8021Q_MODE_PORT_FALLBACK	1
+#define   AR934X_PORT_VLAN2_8021Q_MODE_VLAN_ONLY	2
+#define   AR934X_PORT_VLAN2_8021Q_MODE_SECURE		3
+
+#define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev)
+
+struct ar7240sw_port_stat {
+	unsigned long rx_broadcast;
+	unsigned long rx_pause;
+	unsigned long rx_multicast;
+	unsigned long rx_fcs_error;
+	unsigned long rx_align_error;
+	unsigned long rx_runt;
+	unsigned long rx_fragments;
+	unsigned long rx_64byte;
+	unsigned long rx_128byte;
+	unsigned long rx_256byte;
+	unsigned long rx_512byte;
+	unsigned long rx_1024byte;
+	unsigned long rx_1518byte;
+	unsigned long rx_maxbyte;
+	unsigned long rx_toolong;
+	unsigned long rx_good_byte;
+	unsigned long rx_bad_byte;
+	unsigned long rx_overflow;
+	unsigned long filtered;
+
+	unsigned long tx_broadcast;
+	unsigned long tx_pause;
+	unsigned long tx_multicast;
+	unsigned long tx_underrun;
+	unsigned long tx_64byte;
+	unsigned long tx_128byte;
+	unsigned long tx_256byte;
+	unsigned long tx_512byte;
+	unsigned long tx_1024byte;
+	unsigned long tx_1518byte;
+	unsigned long tx_maxbyte;
+	unsigned long tx_oversize;
+	unsigned long tx_byte;
+	unsigned long tx_collision;
+	unsigned long tx_abortcol;
+	unsigned long tx_multicol;
+	unsigned long tx_singlecol;
+	unsigned long tx_excdefer;
+	unsigned long tx_defer;
+	unsigned long tx_xlatecol;
+};
+
+struct ar7240sw {
+	struct mii_bus	*mii_bus;
+	struct ag71xx_switch_platform_data *swdata;
+	struct switch_dev swdev;
+	int num_ports;
+	u8 ver;
+	bool vlan;
+	u16 vlan_id[AR7240_MAX_VLANS];
+	u8 vlan_table[AR7240_MAX_VLANS];
+	u8 vlan_tagged;
+	u16 pvid[AR7240_NUM_PORTS];
+	char buf[80];
+
+	rwlock_t stats_lock;
+	struct ar7240sw_port_stat port_stats[AR7240_NUM_PORTS];
+};
+
+struct ar7240sw_hw_stat {
+	char string[ETH_GSTRING_LEN];
+	int sizeof_stat;
+	int reg;
+};
+
+static DEFINE_MUTEX(reg_mutex);
+
+static inline int sw_is_ar7240(struct ar7240sw *as)
+{
+	return as->ver == AR7240_MASK_CTRL_VERSION_AR7240;
+}
+
+static inline int sw_is_ar934x(struct ar7240sw *as)
+{
+	return as->ver == AR7240_MASK_CTRL_VERSION_AR934X;
+}
+
+static inline u32 ar7240sw_port_mask(struct ar7240sw *as, int port)
+{
+	return BIT(port);
+}
+
+static inline u32 ar7240sw_port_mask_all(struct ar7240sw *as)
+{
+	return BIT(as->swdev.ports) - 1;
+}
+
+static inline u32 ar7240sw_port_mask_but(struct ar7240sw *as, int port)
+{
+	return ar7240sw_port_mask_all(as) & ~BIT(port);
+}
+
+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 mii_bus *mii, u32 reg)
+{
+	unsigned long flags;
+	u16 phy_addr;
+	u16 phy_reg;
+	u32 hi, lo;
+
+	reg = (reg & 0xfffffffc) >> 2;
+	phy_addr = mk_phy_addr(reg);
+	phy_reg = mk_phy_reg(reg);
+
+	local_irq_save(flags);
+	ag71xx_mdio_mii_write(mii, 0x1f, 0x10, mk_high_addr(reg));
+	lo = (u32) ag71xx_mdio_mii_read(mii, phy_addr, phy_reg);
+	hi = (u32) ag71xx_mdio_mii_read(mii, phy_addr, phy_reg + 1);
+	local_irq_restore(flags);
+
+	return (hi << 16) | lo;
+}
+
+static void __ar7240sw_reg_write(struct mii_bus *mii, u32 reg, u32 val)
+{
+	unsigned long flags;
+	u16 phy_addr;
+	u16 phy_reg;
+
+	reg = (reg & 0xfffffffc) >> 2;
+	phy_addr = mk_phy_addr(reg);
+	phy_reg = mk_phy_reg(reg);
+
+	local_irq_save(flags);
+	ag71xx_mdio_mii_write(mii, 0x1f, 0x10, mk_high_addr(reg));
+	ag71xx_mdio_mii_write(mii, phy_addr, phy_reg + 1, (val >> 16));
+	ag71xx_mdio_mii_write(mii, phy_addr, phy_reg, (val & 0xffff));
+	local_irq_restore(flags);
+}
+
+static u32 ar7240sw_reg_read(struct mii_bus *mii, u32 reg_addr)
+{
+	u32 ret;
+
+	mutex_lock(&reg_mutex);
+	ret = __ar7240sw_reg_read(mii, reg_addr);
+	mutex_unlock(&reg_mutex);
+
+	return ret;
+}
+
+static void ar7240sw_reg_write(struct mii_bus *mii, u32 reg_addr, u32 reg_val)
+{
+	mutex_lock(&reg_mutex);
+	__ar7240sw_reg_write(mii, reg_addr, reg_val);
+	mutex_unlock(&reg_mutex);
+}
+
+static u32 ar7240sw_reg_rmw(struct mii_bus *mii, u32 reg, u32 mask, u32 val)
+{
+	u32 t;
+
+	mutex_lock(&reg_mutex);
+	t = __ar7240sw_reg_read(mii, reg);
+	t &= ~mask;
+	t |= val;
+	__ar7240sw_reg_write(mii, reg, t);
+	mutex_unlock(&reg_mutex);
+
+	return t;
+}
+
+static void ar7240sw_reg_set(struct mii_bus *mii, u32 reg, u32 val)
+{
+	u32 t;
+
+	mutex_lock(&reg_mutex);
+	t = __ar7240sw_reg_read(mii, reg);
+	t |= val;
+	__ar7240sw_reg_write(mii, reg, t);
+	mutex_unlock(&reg_mutex);
+}
+
+static int __ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val,
+			       unsigned timeout)
+{
+	int i;
+
+	for (i = 0; i < timeout; i++) {
+		u32 t;
+
+		t = __ar7240sw_reg_read(mii, reg);
+		if ((t & mask) == val)
+			return 0;
+
+		usleep_range(1000, 2000);
+	}
+
+	return -ETIMEDOUT;
+}
+
+static int ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val,
+			     unsigned timeout)
+{
+	int ret;
+
+	mutex_lock(&reg_mutex);
+	ret = __ar7240sw_reg_wait(mii, reg, mask, val, timeout);
+	mutex_unlock(&reg_mutex);
+	return ret;
+}
+
+int ar7240sw_phy_read(struct mii_bus *mii, int phy_addr, int reg_addr)
+{
+	u32 t, val = 0xffff;
+	int err;
+
+	if (phy_addr >= AR7240_NUM_PHYS)
+		return 0xffff;
+
+	mutex_lock(&reg_mutex);
+	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(mii, AR7240_REG_MDIO_CTRL, t);
+	err = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL,
+				  AR7240_MDIO_CTRL_BUSY, 0, 5);
+	if (!err)
+		val = __ar7240sw_reg_read(mii, AR7240_REG_MDIO_CTRL);
+	mutex_unlock(&reg_mutex);
+
+	return val & AR7240_MDIO_CTRL_DATA_M;
+}
+
+int ar7240sw_phy_write(struct mii_bus *mii, int phy_addr, int reg_addr,
+		       u16 reg_val)
+{
+	u32 t;
+	int ret;
+
+	if (phy_addr >= AR7240_NUM_PHYS)
+		return -EINVAL;
+
+	mutex_lock(&reg_mutex);
+	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(mii, AR7240_REG_MDIO_CTRL, t);
+	ret = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL,
+				  AR7240_MDIO_CTRL_BUSY, 0, 5);
+	mutex_unlock(&reg_mutex);
+
+	return ret;
+}
+
+static int ar7240sw_capture_stats(struct ar7240sw *as)
+{
+	struct mii_bus *mii = as->mii_bus;
+	int port;
+	int ret;
+
+	write_lock(&as->stats_lock);
+
+	/* Capture the hardware statistics for all ports */
+	ar7240sw_reg_rmw(mii, AR7240_REG_MIB_FUNCTION0,
+			 (AR7240_MIB_FUNC_M << AR7240_MIB_FUNC_S),
+			 (AR7240_MIB_FUNC_CAPTURE << AR7240_MIB_FUNC_S));
+
+	/* Wait for the capturing to complete. */
+	ret = ar7240sw_reg_wait(mii, AR7240_REG_MIB_FUNCTION0,
+				AR7240_MIB_BUSY, 0, 10);
+
+	if (ret)
+		goto unlock;
+
+	for (port = 0; port < AR7240_NUM_PORTS; port++) {
+		unsigned int base;
+		struct ar7240sw_port_stat *stats;
+
+		base = AR7240_REG_STATS_BASE(port);
+		stats = &as->port_stats[port];
+
+#define READ_STAT(_r) ar7240sw_reg_read(mii, base + AR7240_STATS_ ## _r)
+
+		stats->rx_good_byte += READ_STAT(RXGOODBYTE);
+		stats->tx_byte += READ_STAT(TXBYTE);
+
+#undef READ_STAT
+	}
+
+	ret = 0;
+
+unlock:
+	write_unlock(&as->stats_lock);
+	return ret;
+}
+
+static void ar7240sw_disable_port(struct ar7240sw *as, unsigned port)
+{
+	ar7240sw_reg_write(as->mii_bus, AR7240_REG_PORT_CTRL(port),
+			   AR7240_PORT_CTRL_STATE_DISABLED);
+}
+
+static void ar7240sw_setup(struct ar7240sw *as)
+{
+	struct mii_bus *mii = as->mii_bus;
+
+	/* Enable CPU port, and disable mirror port */
+	ar7240sw_reg_write(mii, AR7240_REG_CPU_PORT,
+			   AR7240_CPU_PORT_EN |
+			   (15 << AR7240_MIRROR_PORT_S));
+
+	/* Setup TAG priority mapping */
+	ar7240sw_reg_write(mii, AR7240_REG_TAG_PRIORITY, 0xfa50);
+
+	if (sw_is_ar934x(as)) {
+		/* Enable aging, MAC replacing */
+		ar7240sw_reg_write(mii, AR934X_REG_AT_CTRL,
+			0x2b /* 5 min age time */ |
+			AR934X_AT_CTRL_AGE_EN |
+			AR934X_AT_CTRL_LEARN_CHANGE);
+		/* Enable ARP frame acknowledge */
+		ar7240sw_reg_set(mii, AR934X_REG_QM_CTRL,
+				 AR934X_QM_CTRL_ARP_EN);
+		/* Enable Broadcast/Multicast frames transmitted to the CPU */
+		ar7240sw_reg_set(mii, AR934X_REG_FLOOD_MASK,
+				 AR934X_FLOOD_MASK_BC_DP(0) |
+				 AR934X_FLOOD_MASK_MC_DP(0));
+
+		/* setup MTU */
+		ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL,
+				 AR9340_GLOBAL_CTRL_MTU_M,
+				 AR9340_GLOBAL_CTRL_MTU_M);
+
+		/* Enable MIB counters */
+		ar7240sw_reg_set(mii, AR7240_REG_MIB_FUNCTION0,
+				 AR934X_MIB_ENABLE);
+
+	} else {
+		/* Enable ARP frame acknowledge, aging, MAC replacing */
+		ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL,
+			AR7240_AT_CTRL_RESERVED |
+			0x2b /* 5 min age time */ |
+			AR7240_AT_CTRL_AGE_EN |
+			AR7240_AT_CTRL_ARP_EN |
+			AR7240_AT_CTRL_LEARN_CHANGE);
+		/* Enable Broadcast frames transmitted to the CPU */
+		ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
+				 AR7240_FLOOD_MASK_BROAD_TO_CPU);
+
+		/* setup MTU */
+		ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL,
+				 AR7240_GLOBAL_CTRL_MTU_M,
+				 AR7240_GLOBAL_CTRL_MTU_M);
+	}
+
+	/* setup Service TAG */
+	ar7240sw_reg_rmw(mii, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0);
+}
+
+/* inspired by phy_poll_reset in drivers/net/phy/phy_device.c */
+static int
+ar7240sw_phy_poll_reset(struct mii_bus *bus)
+{
+	const unsigned int sleep_msecs = 20;
+	int ret, elapsed, i;
+
+	for (elapsed = sleep_msecs; elapsed <= 600;
+	     elapsed += sleep_msecs) {
+		msleep(sleep_msecs);
+		for (i = 0; i < AR7240_NUM_PHYS; i++) {
+			ret = ar7240sw_phy_read(bus, i, MII_BMCR);
+			if (ret < 0)
+				return ret;
+			if (ret & BMCR_RESET)
+				break;
+			if (i == AR7240_NUM_PHYS - 1) {
+				usleep_range(1000, 2000);
+				return 0;
+			}
+		}
+	}
+	return -ETIMEDOUT;
+}
+
+static int ar7240sw_reset(struct ar7240sw *as)
+{
+	struct mii_bus *mii = as->mii_bus;
+	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. */
+	usleep_range(2000, 3000);
+
+	/* Reset the switch. */
+	ar7240sw_reg_write(mii, AR7240_REG_MASK_CTRL,
+			   AR7240_MASK_CTRL_SOFT_RESET);
+
+	ret = ar7240sw_reg_wait(mii, AR7240_REG_MASK_CTRL,
+				AR7240_MASK_CTRL_SOFT_RESET, 0, 1000);
+
+	/* setup PHYs */
+	for (i = 0; i < AR7240_NUM_PHYS; i++) {
+		ar7240sw_phy_write(mii, i, MII_ADVERTISE,
+				   ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
+				   ADVERTISE_PAUSE_ASYM);
+		ar7240sw_phy_write(mii, i, MII_BMCR,
+				   BMCR_RESET | BMCR_ANENABLE);
+	}
+	ret = ar7240sw_phy_poll_reset(mii);
+	if (ret)
+		return ret;
+
+	ar7240sw_setup(as);
+	return ret;
+}
+
+static void ar7240sw_setup_port(struct ar7240sw *as, unsigned port, u8 portmask)
+{
+	struct mii_bus *mii = as->mii_bus;
+	u32 ctrl;
+	u32 vid, mode;
+
+	ctrl = AR7240_PORT_CTRL_STATE_FORWARD | AR7240_PORT_CTRL_LEARN |
+		AR7240_PORT_CTRL_SINGLE_VLAN;
+
+	if (port == AR7240_PORT_CPU) {
+		ar7240sw_reg_write(mii, 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(mii, AR7240_REG_PORT_STATUS(port),
+				   AR7240_PORT_STATUS_LINK_AUTO);
+	}
+
+	/* Set the default VID for this port */
+	if (as->vlan) {
+		vid = as->vlan_id[as->pvid[port]];
+		mode = AR7240_PORT_VLAN_MODE_SECURE;
+	} else {
+		vid = port;
+		mode = AR7240_PORT_VLAN_MODE_PORT_ONLY;
+	}
+
+	if (as->vlan) {
+		if (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;
+	} else {
+		ctrl |= AR7240_PORT_CTRL_VLAN_MODE_KEEP <<
+			AR7240_PORT_CTRL_VLAN_MODE_S;
+	}
+
+	if (!portmask) {
+		if (port == AR7240_PORT_CPU)
+			portmask = ar7240sw_port_mask_but(as, AR7240_PORT_CPU);
+		else
+			portmask = ar7240sw_port_mask(as, 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 */
+	portmask &= ar7240sw_port_mask_but(as, port);
+
+	ar7240sw_reg_write(mii, AR7240_REG_PORT_CTRL(port), ctrl);
+	if (sw_is_ar934x(as)) {
+		u32 vlan1, vlan2;
+
+		vlan1 = (vid << AR934X_PORT_VLAN1_DEFAULT_CVID_S);
+		vlan2 = (portmask << AR934X_PORT_VLAN2_PORT_VID_MEM_S) |
+			(mode << AR934X_PORT_VLAN2_8021Q_MODE_S);
+		ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN1(port), vlan1);
+		ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN2(port), vlan2);
+	} else {
+		u32 vlan;
+
+		vlan = vid | (mode << AR7240_PORT_VLAN_MODE_S) |
+		       (portmask << AR7240_PORT_VLAN_DEST_PORTS_S);
+
+		ar7240sw_reg_write(mii, AR7240_REG_PORT_VLAN(port), vlan);
+	}
+}
+
+static int ar7240_set_addr(struct ar7240sw *as, u8 *addr)
+{
+	struct mii_bus *mii = as->mii_bus;
+	u32 t;
+
+	t = (addr[4] << 8) | addr[5];
+	ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR0, t);
+
+	t = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3];
+	ar7240sw_reg_write(mii, 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 < as->swdev.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)
+{
+	struct mii_bus *mii = as->mii_bus;
+
+	if (ar7240sw_reg_wait(mii, 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(mii, AR7240_REG_VTU_DATA, val);
+	}
+	op |= AR7240_VTU_ACTIVE;
+	ar7240sw_reg_write(mii, 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 < as->swdev.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 < as->swdev.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 < as->swdev.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 int
+ar7240_get_port_link(struct switch_dev *dev, int port,
+		     struct switch_port_link *link)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	struct mii_bus *mii = as->mii_bus;
+	u32 status;
+
+	if (port >= AR7240_NUM_PORTS)
+		return -EINVAL;
+
+	status = ar7240sw_reg_read(mii, AR7240_REG_PORT_STATUS(port));
+	link->aneg = !!(status & AR7240_PORT_STATUS_LINK_AUTO);
+	if (link->aneg) {
+		link->link = !!(status & AR7240_PORT_STATUS_LINK_UP);
+		if (!link->link)
+			return 0;
+	} else {
+		link->link = true;
+	}
+
+	link->duplex = !!(status & AR7240_PORT_STATUS_DUPLEX);
+	link->tx_flow = !!(status & AR7240_PORT_STATUS_TXFLOW);
+	link->rx_flow = !!(status & AR7240_PORT_STATUS_RXFLOW);
+	switch (status & AR7240_PORT_STATUS_SPEED_M) {
+	case AR7240_PORT_STATUS_SPEED_10:
+		link->speed = SWITCH_PORT_SPEED_10;
+		break;
+	case AR7240_PORT_STATUS_SPEED_100:
+		link->speed = SWITCH_PORT_SPEED_100;
+		break;
+	case AR7240_PORT_STATUS_SPEED_1000:
+		link->speed = SWITCH_PORT_SPEED_1000;
+		break;
+	}
+
+	return 0;
+}
+
+static int
+ar7240_get_port_stats(struct switch_dev *dev, int port,
+		      struct switch_port_stats *stats)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+
+	if (port >= AR7240_NUM_PORTS)
+		return -EINVAL;
+
+	ar7240sw_capture_stats(as);
+
+	read_lock(&as->stats_lock);
+	stats->rx_bytes = as->port_stats[port].rx_good_byte;
+	stats->tx_bytes = as->port_stats[port].tx_byte;
+	read_unlock(&as->stats_lock);
+
+	return 0;
+}
+
+static int
+ar7240_set_mirror_monitor_port(struct switch_dev *dev,
+				const struct switch_attr *attr,
+				struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	struct mii_bus *mii = as->mii_bus;
+
+	int port = val->value.i;
+
+	if (port > 15)
+		return -EINVAL;
+
+	ar7240sw_reg_rmw(mii, AR7240_REG_CPU_PORT,
+		AR7240_MIRROR_PORT_M << AR7240_MIRROR_PORT_S,
+		port << AR7240_MIRROR_PORT_S);
+
+	return 0;
+}
+
+static int
+ar7240_get_mirror_monitor_port(struct switch_dev *dev,
+				const struct switch_attr *attr,
+				struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	struct mii_bus *mii = as->mii_bus;
+
+	u32 ret;
+
+	ret = ar7240sw_reg_read(mii, AR7240_REG_CPU_PORT);
+	val->value.i = (ret >> AR7240_MIRROR_PORT_S) & AR7240_MIRROR_PORT_M;
+
+	return 0;
+}
+
+static int
+ar7240_set_mirror_rx(struct switch_dev *dev, const struct switch_attr *attr,
+		      struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	struct mii_bus *mii = as->mii_bus;
+
+	int port = val->port_vlan;
+
+	if (port >= dev->ports)
+		return -EINVAL;
+
+	if (val && val->value.i == 1)
+		ar7240sw_reg_set(mii, AR7240_REG_PORT_CTRL(port),
+			AR7240_PORT_CTRL_MIRROR_RX);
+	else
+		ar7240sw_reg_rmw(mii, AR7240_REG_PORT_CTRL(port),
+			AR7240_PORT_CTRL_MIRROR_RX, 0);
+
+	return 0;
+}
+
+static int
+ar7240_get_mirror_rx(struct switch_dev *dev, const struct switch_attr *attr,
+		      struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	struct mii_bus *mii = as->mii_bus;
+
+	u32 ctrl;
+
+	int port = val->port_vlan;
+
+	if (port >= dev->ports)
+		return -EINVAL;
+
+	ctrl = ar7240sw_reg_read(mii, AR7240_REG_PORT_CTRL(port));
+
+	if ((ctrl & AR7240_PORT_CTRL_MIRROR_RX) == AR7240_PORT_CTRL_MIRROR_RX)
+		val->value.i = 1;
+	else
+		val->value.i = 0;
+
+	return 0;
+}
+
+static int
+ar7240_set_mirror_tx(struct switch_dev *dev, const struct switch_attr *attr,
+		      struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	struct mii_bus *mii = as->mii_bus;
+
+	int port = val->port_vlan;
+
+	if (port >= dev->ports)
+		return -EINVAL;
+
+	if (val && val->value.i == 1)
+		ar7240sw_reg_set(mii, AR7240_REG_PORT_CTRL(port),
+			AR7240_PORT_CTRL_MIRROR_TX);
+	else
+		ar7240sw_reg_rmw(mii, AR7240_REG_PORT_CTRL(port),
+			AR7240_PORT_CTRL_MIRROR_TX, 0);
+
+	return 0;
+}
+
+static int
+ar7240_get_mirror_tx(struct switch_dev *dev, const struct switch_attr *attr,
+		      struct switch_val *val)
+{
+	struct ar7240sw *as = sw_to_ar7240(dev);
+	struct mii_bus *mii = as->mii_bus;
+
+	u32 ctrl;
+
+	int port = val->port_vlan;
+
+	if (port >= dev->ports)
+		return -EINVAL;
+
+	ctrl = ar7240sw_reg_read(mii, AR7240_REG_PORT_CTRL(port));
+
+	if ((ctrl & AR7240_PORT_CTRL_MIRROR_TX) == AR7240_PORT_CTRL_MIRROR_TX)
+		val->value.i = 1;
+	else
+		val->value.i = 0;
+
+	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
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "mirror_monitor_port",
+		.description = "Mirror monitor port",
+		.set = ar7240_set_mirror_monitor_port,
+		.get = ar7240_get_mirror_monitor_port,
+		.max = 15
+	},
+};
+
+static struct switch_attr ar7240_port[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_mirror_rx",
+		.description = "Enable mirroring of RX packets",
+		.set = ar7240_set_mirror_rx,
+		.get = ar7240_get_mirror_rx,
+		.max = 1
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_mirror_tx",
+		.description = "Enable mirroring of TX packets",
+		.set = ar7240_set_mirror_tx,
+		.get = ar7240_get_mirror_tx,
+		.max = 1
+	},
+};
+
+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,
+	.get_port_link = ar7240_get_port_link,
+	.get_port_stats = ar7240_get_port_stats,
+};
+
+static struct ar7240sw *
+ar7240_probe(struct ag71xx *ag, struct device_node *np)
+{
+	struct mii_bus *mii = ag->mii_bus;
+	struct ar7240sw *as;
+	struct switch_dev *swdev;
+	u32 ctrl;
+	u16 phy_id1;
+	u16 phy_id2;
+	int i;
+
+	phy_id1 = ar7240sw_phy_read(mii, 0, MII_PHYSID1);
+	phy_id2 = ar7240sw_phy_read(mii, 0, MII_PHYSID2);
+	if ((phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) &&
+	    (phy_id1 != AR934X_PHY_ID1 || phy_id2 != AR934X_PHY_ID2)) {
+		pr_err("%s: unknown phy id '%04x:%04x'\n",
+		       dev_name(&mii->dev), phy_id1, phy_id2);
+		return NULL;
+	}
+
+	as = kzalloc(sizeof(*as), GFP_KERNEL);
+	if (!as)
+		return NULL;
+
+	as->mii_bus = mii;
+
+	swdev = &as->swdev;
+
+	ctrl = ar7240sw_reg_read(mii, AR7240_REG_MASK_CTRL);
+	as->ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) &
+		  AR7240_MASK_CTRL_VERSION_M;
+
+	if (sw_is_ar7240(as)) {
+		swdev->name = "AR7240/AR9330 built-in switch";
+		swdev->ports = AR7240_NUM_PORTS - 1;
+	} else if (sw_is_ar934x(as)) {
+		swdev->name = "AR934X built-in switch";
+
+		if (ag->phy_if_mode == PHY_INTERFACE_MODE_GMII) {
+			ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0,
+					 AR934X_OPER_MODE0_MAC_GMII_EN);
+		} else if (ag->phy_if_mode == PHY_INTERFACE_MODE_MII) {
+			ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0,
+					 AR934X_OPER_MODE0_PHY_MII_EN);
+		} else {
+			pr_err("%s: invalid PHY interface mode\n",
+			       dev_name(&mii->dev));
+			goto err_free;
+		}
+
+		if (of_property_read_bool(np, "phy4-mii-enable")) {
+			ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE1,
+					 AR934X_REG_OPER_MODE1_PHY4_MII_EN);
+			swdev->ports = AR7240_NUM_PORTS - 1;
+		} else {
+			swdev->ports = AR7240_NUM_PORTS;
+		}
+	} else {
+		pr_err("%s: unsupported chip, ctrl=%08x\n",
+			dev_name(&mii->dev), ctrl);
+		goto err_free;
+	}
+
+	swdev->cpu_port = AR7240_PORT_CPU;
+	swdev->vlans = AR7240_MAX_VLANS;
+	swdev->ops = &ar7240_ops;
+
+	if (register_switch(&as->swdev, ag->dev) < 0)
+		goto err_free;
+
+	pr_info("%s: Found an %s\n", dev_name(&mii->dev), swdev->name);
+
+	/* initialize defaults */
+	for (i = 0; i < AR7240_MAX_VLANS; i++)
+		as->vlan_id[i] = i;
+
+	as->vlan_table[0] = ar7240sw_port_mask_all(as);
+
+	return as;
+
+err_free:
+	kfree(as);
+	return NULL;
+}
+
+void ag71xx_ar7240_start(struct ag71xx *ag)
+{
+	struct ar7240sw *as = ag->phy_priv;
+
+	if (!as)
+		return;
+
+	ar7240sw_reset(as);
+
+	ar7240_set_addr(as, ag->dev->dev_addr);
+	ar7240_hw_apply(&as->swdev);
+}
+
+int ag71xx_ar7240_init(struct ag71xx *ag, struct device_node *np)
+{
+	struct ar7240sw *as;
+
+	as = ar7240_probe(ag, np);
+	if (!as)
+		return -ENODEV;
+
+	ag->phy_priv = as;
+	ar7240sw_reset(as);
+
+	rwlock_init(&as->stats_lock);
+
+	return 0;
+}
+
+void 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/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c
new file mode 100644
index 0000000000..20cf1c15c8
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c
@@ -0,0 +1,285 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  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/debugfs.h>
+
+#include "ag71xx.h"
+
+static struct dentry *ag71xx_debugfs_root;
+
+static int ag71xx_debugfs_generic_open(struct inode *inode, struct file *file)
+{
+	file->private_data = inode->i_private;
+	return 0;
+}
+
+void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status)
+{
+	if (status)
+		ag->debug.int_stats.total++;
+	if (status & AG71XX_INT_TX_PS)
+		ag->debug.int_stats.tx_ps++;
+	if (status & AG71XX_INT_TX_UR)
+		ag->debug.int_stats.tx_ur++;
+	if (status & AG71XX_INT_TX_BE)
+		ag->debug.int_stats.tx_be++;
+	if (status & AG71XX_INT_RX_PR)
+		ag->debug.int_stats.rx_pr++;
+	if (status & AG71XX_INT_RX_OF)
+		ag->debug.int_stats.rx_of++;
+	if (status & AG71XX_INT_RX_BE)
+		ag->debug.int_stats.rx_be++;
+}
+
+static ssize_t read_file_int_stats(struct file *file, char __user *user_buf,
+				   size_t count, loff_t *ppos)
+{
+#define PR_INT_STAT(_label, _field)					\
+	len += snprintf(buf + len, sizeof(buf) - len,			\
+		"%20s: %10lu\n", _label, ag->debug.int_stats._field);
+
+	struct ag71xx *ag = file->private_data;
+	char buf[256];
+	unsigned int len = 0;
+
+	PR_INT_STAT("TX Packet Sent", tx_ps);
+	PR_INT_STAT("TX Underrun", tx_ur);
+	PR_INT_STAT("TX Bus Error", tx_be);
+	PR_INT_STAT("RX Packet Received", rx_pr);
+	PR_INT_STAT("RX Overflow", rx_of);
+	PR_INT_STAT("RX Bus Error", rx_be);
+	len += snprintf(buf + len, sizeof(buf) - len, "\n");
+	PR_INT_STAT("Total", total);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+#undef PR_INT_STAT
+}
+
+static const struct file_operations ag71xx_fops_int_stats = {
+	.open	= ag71xx_debugfs_generic_open,
+	.read	= read_file_int_stats,
+	.owner	= THIS_MODULE
+};
+
+void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx)
+{
+	struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
+
+	if (rx) {
+		stats->rx_count++;
+		stats->rx_packets += rx;
+		if (rx <= AG71XX_NAPI_WEIGHT)
+			stats->rx[rx]++;
+		if (rx > stats->rx_packets_max)
+			stats->rx_packets_max = rx;
+	}
+
+	if (tx) {
+		stats->tx_count++;
+		stats->tx_packets += tx;
+		if (tx <= AG71XX_NAPI_WEIGHT)
+			stats->tx[tx]++;
+		if (tx > stats->tx_packets_max)
+			stats->tx_packets_max = tx;
+	}
+}
+
+static ssize_t read_file_napi_stats(struct file *file, char __user *user_buf,
+				    size_t count, loff_t *ppos)
+{
+	struct ag71xx *ag = file->private_data;
+	struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
+	char *buf;
+	unsigned int buflen;
+	unsigned int len = 0;
+	unsigned long rx_avg = 0;
+	unsigned long tx_avg = 0;
+	int ret;
+	int i;
+
+	buflen = 2048;
+	buf = kmalloc(buflen, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	if (stats->rx_count)
+		rx_avg = stats->rx_packets / stats->rx_count;
+
+	if (stats->tx_count)
+		tx_avg = stats->tx_packets / stats->tx_count;
+
+	len += snprintf(buf + len, buflen - len, "%3s  %10s %10s\n",
+			"len", "rx", "tx");
+
+	for (i = 1; i <= AG71XX_NAPI_WEIGHT; i++)
+		len += snprintf(buf + len, buflen - len,
+				"%3d: %10lu %10lu\n",
+				i, stats->rx[i], stats->tx[i]);
+
+	len += snprintf(buf + len, buflen - len, "\n");
+
+	len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
+			"sum", stats->rx_count, stats->tx_count);
+	len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
+			"avg", rx_avg, tx_avg);
+	len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
+			"max", stats->rx_packets_max, stats->tx_packets_max);
+	len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
+			"pkt", stats->rx_packets, stats->tx_packets);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+	kfree(buf);
+
+	return ret;
+}
+
+static const struct file_operations ag71xx_fops_napi_stats = {
+	.open	= ag71xx_debugfs_generic_open,
+	.read	= read_file_napi_stats,
+	.owner	= THIS_MODULE
+};
+
+#define DESC_PRINT_LEN	64
+
+static ssize_t read_file_ring(struct file *file, char __user *user_buf,
+			      size_t count, loff_t *ppos,
+			      struct ag71xx *ag,
+			      struct ag71xx_ring *ring,
+			      unsigned desc_reg)
+{
+	int ring_size = BIT(ring->order);
+	int ring_mask = ring_size - 1;
+	char *buf;
+	unsigned int buflen;
+	unsigned int len = 0;
+	unsigned long flags;
+	ssize_t ret;
+	int curr;
+	int dirty;
+	u32 desc_hw;
+	int i;
+
+	buflen = (ring_size * DESC_PRINT_LEN);
+	buf = kmalloc(buflen, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	len += snprintf(buf + len, buflen - len,
+			"Idx ... %-8s %-8s %-8s %-8s .\n",
+			"desc", "next", "data", "ctrl");
+
+	spin_lock_irqsave(&ag->lock, flags);
+
+	curr = (ring->curr & ring_mask);
+	dirty = (ring->dirty & ring_mask);
+	desc_hw = ag71xx_rr(ag, desc_reg);
+	for (i = 0; i < ring_size; i++) {
+		struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+		u32 desc_dma = ((u32) ring->descs_dma) + i * AG71XX_DESC_SIZE;
+
+		len += snprintf(buf + len, buflen - len,
+			"%3d %c%c%c %08x %08x %08x %08x %c\n",
+			i,
+			(i == curr) ? 'C' : ' ',
+			(i == dirty) ? 'D' : ' ',
+			(desc_hw == desc_dma) ? 'H' : ' ',
+			desc_dma,
+			desc->next,
+			desc->data,
+			desc->ctrl,
+			(desc->ctrl & DESC_EMPTY) ? 'E' : '*');
+	}
+
+	spin_unlock_irqrestore(&ag->lock, flags);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+	kfree(buf);
+
+	return ret;
+}
+
+static ssize_t read_file_tx_ring(struct file *file, char __user *user_buf,
+				 size_t count, loff_t *ppos)
+{
+	struct ag71xx *ag = file->private_data;
+
+	return read_file_ring(file, user_buf, count, ppos, ag, &ag->tx_ring,
+			      AG71XX_REG_TX_DESC);
+}
+
+static const struct file_operations ag71xx_fops_tx_ring = {
+	.open	= ag71xx_debugfs_generic_open,
+	.read	= read_file_tx_ring,
+	.owner	= THIS_MODULE
+};
+
+static ssize_t read_file_rx_ring(struct file *file, char __user *user_buf,
+				 size_t count, loff_t *ppos)
+{
+	struct ag71xx *ag = file->private_data;
+
+	return read_file_ring(file, user_buf, count, ppos, ag, &ag->rx_ring,
+			      AG71XX_REG_RX_DESC);
+}
+
+static const struct file_operations ag71xx_fops_rx_ring = {
+	.open	= ag71xx_debugfs_generic_open,
+	.read	= read_file_rx_ring,
+	.owner	= THIS_MODULE
+};
+
+void ag71xx_debugfs_exit(struct ag71xx *ag)
+{
+	debugfs_remove_recursive(ag->debug.debugfs_dir);
+}
+
+int ag71xx_debugfs_init(struct ag71xx *ag)
+{
+	struct device *dev = &ag->pdev->dev;
+
+	ag->debug.debugfs_dir = debugfs_create_dir(dev_name(dev),
+						   ag71xx_debugfs_root);
+	if (!ag->debug.debugfs_dir) {
+		dev_err(dev, "unable to create debugfs directory\n");
+		return -ENOENT;
+	}
+
+	debugfs_create_file("int_stats", S_IRUGO, ag->debug.debugfs_dir,
+			    ag, &ag71xx_fops_int_stats);
+	debugfs_create_file("napi_stats", S_IRUGO, ag->debug.debugfs_dir,
+			    ag, &ag71xx_fops_napi_stats);
+	debugfs_create_file("tx_ring", S_IRUGO, ag->debug.debugfs_dir,
+			    ag, &ag71xx_fops_tx_ring);
+	debugfs_create_file("rx_ring", S_IRUGO, ag->debug.debugfs_dir,
+			    ag, &ag71xx_fops_rx_ring);
+
+	return 0;
+}
+
+int ag71xx_debugfs_root_init(void)
+{
+	if (ag71xx_debugfs_root)
+		return -EBUSY;
+
+	ag71xx_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
+	if (!ag71xx_debugfs_root)
+		return -ENOENT;
+
+	return 0;
+}
+
+void ag71xx_debugfs_root_exit(void)
+{
+	debugfs_remove(ag71xx_debugfs_root);
+	ag71xx_debugfs_root = NULL;
+}
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c
new file mode 100644
index 0000000000..6f37fda387
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c
@@ -0,0 +1,120 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  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 "ag71xx.h"
+
+static int ag71xx_ethtool_get_settings(struct net_device *dev,
+				       struct ethtool_cmd *cmd)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	struct phy_device *phydev = ag->phy_dev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_ethtool_ioctl(phydev, cmd);
+}
+
+static int ag71xx_ethtool_set_settings(struct net_device *dev,
+				       struct ethtool_cmd *cmd)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	struct phy_device *phydev = ag->phy_dev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_ethtool_ioctl(phydev, cmd);
+}
+
+static u32 ag71xx_ethtool_get_msglevel(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	return ag->msg_enable;
+}
+
+static void ag71xx_ethtool_set_msglevel(struct net_device *dev, u32 msg_level)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	ag->msg_enable = msg_level;
+}
+
+static void ag71xx_ethtool_get_ringparam(struct net_device *dev,
+					 struct ethtool_ringparam *er)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	er->tx_max_pending = AG71XX_TX_RING_SIZE_MAX;
+	er->rx_max_pending = AG71XX_RX_RING_SIZE_MAX;
+	er->rx_mini_max_pending = 0;
+	er->rx_jumbo_max_pending = 0;
+
+	er->tx_pending = BIT(ag->tx_ring.order);
+	er->rx_pending = BIT(ag->rx_ring.order);
+	er->rx_mini_pending = 0;
+	er->rx_jumbo_pending = 0;
+
+	if (ag->tx_ring.desc_split)
+		er->tx_pending /= AG71XX_TX_RING_DS_PER_PKT;
+}
+
+static int ag71xx_ethtool_set_ringparam(struct net_device *dev,
+					struct ethtool_ringparam *er)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	unsigned tx_size;
+	unsigned rx_size;
+	int err = 0;
+
+	if (er->rx_mini_pending != 0||
+	    er->rx_jumbo_pending != 0 ||
+	    er->rx_pending == 0 ||
+	    er->tx_pending == 0)
+		return -EINVAL;
+
+	tx_size = er->tx_pending < AG71XX_TX_RING_SIZE_MAX ?
+		  er->tx_pending : AG71XX_TX_RING_SIZE_MAX;
+
+	rx_size = er->rx_pending < AG71XX_RX_RING_SIZE_MAX ?
+		  er->rx_pending : AG71XX_RX_RING_SIZE_MAX;
+
+	if (netif_running(dev)) {
+		err = dev->netdev_ops->ndo_stop(dev);
+		if (err)
+			return err;
+	}
+
+	if (ag->tx_ring.desc_split)
+		tx_size *= AG71XX_TX_RING_DS_PER_PKT;
+
+	ag->tx_ring.order = ag71xx_ring_size_order(tx_size);
+	ag->rx_ring.order = ag71xx_ring_size_order(rx_size);
+
+	if (netif_running(dev))
+		err = dev->netdev_ops->ndo_open(dev);
+
+	return err;
+}
+
+struct ethtool_ops ag71xx_ethtool_ops = {
+	.set_settings	= ag71xx_ethtool_set_settings,
+	.get_settings	= ag71xx_ethtool_get_settings,
+	.get_msglevel	= ag71xx_ethtool_get_msglevel,
+	.set_msglevel	= ag71xx_ethtool_set_msglevel,
+	.get_ringparam	= ag71xx_ethtool_get_ringparam,
+	.set_ringparam	= ag71xx_ethtool_set_ringparam,
+	.get_link	= ethtool_op_get_link,
+	.get_ts_info	= ethtool_op_get_ts_info,
+};
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
new file mode 100644
index 0000000000..9ccfb00c3a
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
@@ -0,0 +1,1611 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  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/sizes.h>
+#include <linux/of_net.h>
+#include <linux/of_address.h>
+#include "ag71xx.h"
+
+#define AG71XX_DEFAULT_MSG_ENABLE	\
+	(NETIF_MSG_DRV			\
+	| NETIF_MSG_PROBE		\
+	| NETIF_MSG_LINK		\
+	| NETIF_MSG_TIMER		\
+	| NETIF_MSG_IFDOWN		\
+	| NETIF_MSG_IFUP		\
+	| NETIF_MSG_RX_ERR		\
+	| NETIF_MSG_TX_ERR)
+
+static int ag71xx_msg_level = -1;
+
+module_param_named(msg_level, ag71xx_msg_level, int, 0);
+MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)");
+
+#define ETH_SWITCH_HEADER_LEN	2
+
+static int ag71xx_tx_packets(struct ag71xx *ag, bool flush);
+
+static inline unsigned int ag71xx_max_frame_len(unsigned int mtu)
+{
+	return ETH_SWITCH_HEADER_LEN + ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN;
+}
+
+static void ag71xx_dump_dma_regs(struct ag71xx *ag)
+{
+	DBG("%s: dma_tx_ctrl=%08x, dma_tx_desc=%08x, dma_tx_status=%08x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_TX_CTRL),
+		ag71xx_rr(ag, AG71XX_REG_TX_DESC),
+		ag71xx_rr(ag, AG71XX_REG_TX_STATUS));
+
+	DBG("%s: dma_rx_ctrl=%08x, dma_rx_desc=%08x, dma_rx_status=%08x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_RX_CTRL),
+		ag71xx_rr(ag, AG71XX_REG_RX_DESC),
+		ag71xx_rr(ag, AG71XX_REG_RX_STATUS));
+}
+
+static inline void ag71xx_dump_intr(struct ag71xx *ag, char *label, u32 intr)
+{
+	DBG("%s: %s intr=%08x %s%s%s%s%s%s\n",
+		ag->dev->name, label, intr,
+		(intr & AG71XX_INT_TX_PS) ? "TXPS " : "",
+		(intr & AG71XX_INT_TX_UR) ? "TXUR " : "",
+		(intr & AG71XX_INT_TX_BE) ? "TXBE " : "",
+		(intr & AG71XX_INT_RX_PR) ? "RXPR " : "",
+		(intr & AG71XX_INT_RX_OF) ? "RXOF " : "",
+		(intr & AG71XX_INT_RX_BE) ? "RXBE " : "");
+}
+
+static void ag71xx_ring_tx_clean(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->tx_ring;
+	struct net_device *dev = ag->dev;
+	int ring_mask = BIT(ring->order) - 1;
+	u32 bytes_compl = 0, pkts_compl = 0;
+
+	while (ring->curr != ring->dirty) {
+		struct ag71xx_desc *desc;
+		u32 i = ring->dirty & ring_mask;
+
+		desc = ag71xx_ring_desc(ring, i);
+		if (!ag71xx_desc_empty(desc)) {
+			desc->ctrl = 0;
+			dev->stats.tx_errors++;
+		}
+
+		if (ring->buf[i].skb) {
+			bytes_compl += ring->buf[i].len;
+			pkts_compl++;
+			dev_kfree_skb_any(ring->buf[i].skb);
+		}
+		ring->buf[i].skb = NULL;
+		ring->dirty++;
+	}
+
+	/* flush descriptors */
+	wmb();
+
+	netdev_completed_queue(dev, pkts_compl, bytes_compl);
+}
+
+static void ag71xx_ring_tx_init(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->tx_ring;
+	int ring_size = BIT(ring->order);
+	int ring_mask = ring_size - 1;
+	int i;
+
+	for (i = 0; i < ring_size; i++) {
+		struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+
+		desc->next = (u32) (ring->descs_dma +
+			AG71XX_DESC_SIZE * ((i + 1) & ring_mask));
+
+		desc->ctrl = DESC_EMPTY;
+		ring->buf[i].skb = NULL;
+	}
+
+	/* flush descriptors */
+	wmb();
+
+	ring->curr = 0;
+	ring->dirty = 0;
+	netdev_reset_queue(ag->dev);
+}
+
+static void ag71xx_ring_rx_clean(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->rx_ring;
+	int ring_size = BIT(ring->order);
+	int i;
+
+	if (!ring->buf)
+		return;
+
+	for (i = 0; i < ring_size; i++)
+		if (ring->buf[i].rx_buf) {
+			dma_unmap_single(&ag->dev->dev, ring->buf[i].dma_addr,
+					 ag->rx_buf_size, DMA_FROM_DEVICE);
+			skb_free_frag(ring->buf[i].rx_buf);
+		}
+}
+
+static int ag71xx_buffer_size(struct ag71xx *ag)
+{
+	return ag->rx_buf_size +
+	       SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+}
+
+static bool ag71xx_fill_rx_buf(struct ag71xx *ag, struct ag71xx_buf *buf,
+			       int offset,
+			       void *(*alloc)(unsigned int size))
+{
+	struct ag71xx_ring *ring = &ag->rx_ring;
+	struct ag71xx_desc *desc = ag71xx_ring_desc(ring, buf - &ring->buf[0]);
+	void *data;
+
+	data = alloc(ag71xx_buffer_size(ag));
+	if (!data)
+		return false;
+
+	buf->rx_buf = data;
+	buf->dma_addr = dma_map_single(&ag->dev->dev, data, ag->rx_buf_size,
+				       DMA_FROM_DEVICE);
+	desc->data = (u32) buf->dma_addr + offset;
+	return true;
+}
+
+static int ag71xx_ring_rx_init(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->rx_ring;
+	int ring_size = BIT(ring->order);
+	int ring_mask = BIT(ring->order) - 1;
+	unsigned int i;
+	int ret;
+
+	ret = 0;
+	for (i = 0; i < ring_size; i++) {
+		struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+
+		desc->next = (u32) (ring->descs_dma +
+			AG71XX_DESC_SIZE * ((i + 1) & ring_mask));
+
+		DBG("ag71xx: RX desc at %p, next is %08x\n",
+			desc, desc->next);
+	}
+
+	for (i = 0; i < ring_size; i++) {
+		struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+
+		if (!ag71xx_fill_rx_buf(ag, &ring->buf[i], ag->rx_buf_offset,
+					netdev_alloc_frag)) {
+			ret = -ENOMEM;
+			break;
+		}
+
+		desc->ctrl = DESC_EMPTY;
+	}
+
+	/* flush descriptors */
+	wmb();
+
+	ring->curr = 0;
+	ring->dirty = 0;
+
+	return ret;
+}
+
+static int ag71xx_ring_rx_refill(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->rx_ring;
+	int ring_mask = BIT(ring->order) - 1;
+	unsigned int count;
+	int offset = ag->rx_buf_offset;
+
+	count = 0;
+	for (; ring->curr - ring->dirty > 0; ring->dirty++) {
+		struct ag71xx_desc *desc;
+		unsigned int i;
+
+		i = ring->dirty & ring_mask;
+		desc = ag71xx_ring_desc(ring, i);
+
+		if (!ring->buf[i].rx_buf &&
+		    !ag71xx_fill_rx_buf(ag, &ring->buf[i], offset,
+					napi_alloc_frag))
+			break;
+
+		desc->ctrl = DESC_EMPTY;
+		count++;
+	}
+
+	/* flush descriptors */
+	wmb();
+
+	DBG("%s: %u rx descriptors refilled\n", ag->dev->name, count);
+
+	return count;
+}
+
+static int ag71xx_rings_init(struct ag71xx *ag)
+{
+	struct ag71xx_ring *tx = &ag->tx_ring;
+	struct ag71xx_ring *rx = &ag->rx_ring;
+	int ring_size = BIT(tx->order) + BIT(rx->order);
+	int tx_size = BIT(tx->order);
+
+	tx->buf = kzalloc(ring_size * sizeof(*tx->buf), GFP_KERNEL);
+	if (!tx->buf)
+		return -ENOMEM;
+
+	tx->descs_cpu = dma_alloc_coherent(NULL, ring_size * AG71XX_DESC_SIZE,
+					   &tx->descs_dma, GFP_ATOMIC);
+	if (!tx->descs_cpu) {
+		kfree(tx->buf);
+		tx->buf = NULL;
+		return -ENOMEM;
+	}
+
+	rx->buf = &tx->buf[BIT(tx->order)];
+	rx->descs_cpu = ((void *)tx->descs_cpu) + tx_size * AG71XX_DESC_SIZE;
+	rx->descs_dma = tx->descs_dma + tx_size * AG71XX_DESC_SIZE;
+
+	ag71xx_ring_tx_init(ag);
+	return ag71xx_ring_rx_init(ag);
+}
+
+static void ag71xx_rings_free(struct ag71xx *ag)
+{
+	struct ag71xx_ring *tx = &ag->tx_ring;
+	struct ag71xx_ring *rx = &ag->rx_ring;
+	int ring_size = BIT(tx->order) + BIT(rx->order);
+
+	if (tx->descs_cpu)
+		dma_free_coherent(NULL, ring_size * AG71XX_DESC_SIZE,
+				  tx->descs_cpu, tx->descs_dma);
+
+	kfree(tx->buf);
+
+	tx->descs_cpu = NULL;
+	rx->descs_cpu = NULL;
+	tx->buf = NULL;
+	rx->buf = NULL;
+}
+
+static void ag71xx_rings_cleanup(struct ag71xx *ag)
+{
+	ag71xx_ring_rx_clean(ag);
+	ag71xx_ring_tx_clean(ag);
+	ag71xx_rings_free(ag);
+
+	netdev_reset_queue(ag->dev);
+}
+
+static unsigned char *ag71xx_speed_str(struct ag71xx *ag)
+{
+	switch (ag->speed) {
+	case SPEED_1000:
+		return "1000";
+	case SPEED_100:
+		return "100";
+	case SPEED_10:
+		return "10";
+	}
+
+	return "?";
+}
+
+static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
+{
+	u32 t;
+
+	t = (((u32) mac[5]) << 24) | (((u32) mac[4]) << 16)
+	  | (((u32) mac[3]) << 8) | ((u32) mac[2]);
+
+	ag71xx_wr(ag, AG71XX_REG_MAC_ADDR1, t);
+
+	t = (((u32) mac[1]) << 24) | (((u32) mac[0]) << 16);
+	ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t);
+}
+
+static void ag71xx_dma_reset(struct ag71xx *ag)
+{
+	u32 val;
+	int i;
+
+	ag71xx_dump_dma_regs(ag);
+
+	/* stop RX and TX */
+	ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
+	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
+
+	/*
+	 * give the hardware some time to really stop all rx/tx activity
+	 * clearing the descriptors too early causes random memory corruption
+	 */
+	mdelay(1);
+
+	/* clear descriptor addresses */
+	ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->stop_desc_dma);
+	ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->stop_desc_dma);
+
+	/* clear pending RX/TX interrupts */
+	for (i = 0; i < 256; i++) {
+		ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
+		ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
+	}
+
+	/* clear pending errors */
+	ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE | RX_STATUS_OF);
+	ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE | TX_STATUS_UR);
+
+	val = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
+	if (val)
+		pr_alert("%s: unable to clear DMA Rx status: %08x\n",
+			 ag->dev->name, val);
+
+	val = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
+
+	/* mask out reserved bits */
+	val &= ~0xff000000;
+
+	if (val)
+		pr_alert("%s: unable to clear DMA Tx status: %08x\n",
+			 ag->dev->name, val);
+
+	ag71xx_dump_dma_regs(ag);
+}
+
+#define MAC_CFG1_INIT	(MAC_CFG1_RXE | MAC_CFG1_TXE | \
+			 MAC_CFG1_SRX | MAC_CFG1_STX)
+
+#define FIFO_CFG0_INIT	(FIFO_CFG0_ALL << FIFO_CFG0_ENABLE_SHIFT)
+
+#define FIFO_CFG4_INIT	(FIFO_CFG4_DE | FIFO_CFG4_DV | FIFO_CFG4_FC | \
+			 FIFO_CFG4_CE | FIFO_CFG4_CR | FIFO_CFG4_LM | \
+			 FIFO_CFG4_LO | FIFO_CFG4_OK | FIFO_CFG4_MC | \
+			 FIFO_CFG4_BC | FIFO_CFG4_DR | FIFO_CFG4_LE | \
+			 FIFO_CFG4_CF | FIFO_CFG4_PF | FIFO_CFG4_UO | \
+			 FIFO_CFG4_VT)
+
+#define FIFO_CFG5_INIT	(FIFO_CFG5_DE | FIFO_CFG5_DV | FIFO_CFG5_FC | \
+			 FIFO_CFG5_CE | FIFO_CFG5_LO | FIFO_CFG5_OK | \
+			 FIFO_CFG5_MC | FIFO_CFG5_BC | FIFO_CFG5_DR | \
+			 FIFO_CFG5_CF | FIFO_CFG5_PF | FIFO_CFG5_VT | \
+			 FIFO_CFG5_LE | FIFO_CFG5_FT | FIFO_CFG5_16 | \
+			 FIFO_CFG5_17 | FIFO_CFG5_SF)
+
+static void ag71xx_hw_stop(struct ag71xx *ag)
+{
+	/* disable all interrupts and stop the rx/tx engine */
+	ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, 0);
+	ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
+	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
+}
+
+static void ag71xx_hw_setup(struct ag71xx *ag)
+{
+	struct device_node *np = ag->pdev->dev.of_node;
+	u32 init = MAC_CFG1_INIT;
+
+	/* setup MAC configuration registers */
+	if (of_property_read_bool(np, "flow-control"))
+		init |= MAC_CFG1_TFC | MAC_CFG1_RFC;
+	ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, init);
+
+	ag71xx_sb(ag, AG71XX_REG_MAC_CFG2,
+		  MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK);
+
+	/* setup max frame length to zero */
+	ag71xx_wr(ag, AG71XX_REG_MAC_MFL, 0);
+
+	/* setup FIFO configuration registers */
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT);
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, ag->fifodata[0]);
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, ag->fifodata[1]);
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, FIFO_CFG4_INIT);
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, FIFO_CFG5_INIT);
+}
+
+static void ag71xx_hw_init(struct ag71xx *ag)
+{
+	ag71xx_hw_stop(ag);
+
+	if (ag->phy_reset) {
+		reset_control_assert(ag->phy_reset);
+		msleep(50);
+		reset_control_deassert(ag->phy_reset);
+		msleep(200);
+	}
+
+	ag71xx_sb(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_SR);
+	udelay(20);
+
+	reset_control_assert(ag->mac_reset);
+	msleep(100);
+	reset_control_deassert(ag->mac_reset);
+	msleep(200);
+
+	ag71xx_hw_setup(ag);
+
+	ag71xx_dma_reset(ag);
+}
+
+static void ag71xx_fast_reset(struct ag71xx *ag)
+{
+	struct net_device *dev = ag->dev;
+	u32 rx_ds;
+	u32 mii_reg;
+
+	ag71xx_hw_stop(ag);
+	wmb();
+
+	mii_reg = ag71xx_rr(ag, AG71XX_REG_MII_CFG);
+	rx_ds = ag71xx_rr(ag, AG71XX_REG_RX_DESC);
+
+	ag71xx_tx_packets(ag, true);
+
+	reset_control_assert(ag->mac_reset);
+	udelay(10);
+	reset_control_deassert(ag->mac_reset);
+	udelay(10);
+
+	ag71xx_dma_reset(ag);
+	ag71xx_hw_setup(ag);
+	ag->tx_ring.curr = 0;
+	ag->tx_ring.dirty = 0;
+	netdev_reset_queue(ag->dev);
+
+	/* setup max frame length */
+	ag71xx_wr(ag, AG71XX_REG_MAC_MFL,
+		  ag71xx_max_frame_len(ag->dev->mtu));
+
+	ag71xx_wr(ag, AG71XX_REG_RX_DESC, rx_ds);
+	ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma);
+	ag71xx_wr(ag, AG71XX_REG_MII_CFG, mii_reg);
+
+	ag71xx_hw_set_macaddr(ag, dev->dev_addr);
+}
+
+static void ag71xx_hw_start(struct ag71xx *ag)
+{
+	/* start RX engine */
+	ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
+
+	/* enable interrupts */
+	ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, AG71XX_INT_INIT);
+
+	netif_wake_queue(ag->dev);
+}
+
+static void ath79_set_pllval(struct ag71xx *ag)
+{
+	u32 pll_reg = ag->pllreg[1];
+	u32 pll_val;
+
+	if (!ag->pllregmap)
+		return;
+
+	switch (ag->speed) {
+	case SPEED_10:
+		pll_val = ag->plldata[2];
+		break;
+	case SPEED_100:
+		pll_val = ag->plldata[1];
+		break;
+	case SPEED_1000:
+		pll_val = ag->plldata[0];
+		break;
+	default:
+		BUG();
+	}
+
+	if (pll_val)
+		regmap_write(ag->pllregmap, pll_reg, pll_val);
+}
+
+static void ath79_set_pll(struct ag71xx *ag)
+{
+	u32 pll_cfg = ag->pllreg[0];
+	u32 pll_shift = ag->pllreg[2];
+
+	if (!ag->pllregmap)
+		return;
+
+	regmap_update_bits(ag->pllregmap, pll_cfg, 3 << pll_shift, 2 << pll_shift);
+	udelay(100);
+
+	ath79_set_pllval(ag);
+
+	regmap_update_bits(ag->pllregmap, pll_cfg, 3 << pll_shift, 3 << pll_shift);
+	udelay(100);
+
+	regmap_update_bits(ag->pllregmap, pll_cfg, 3 << pll_shift, 0);
+	udelay(100);
+}
+
+static void ath79_mii_ctrl_set_speed(struct ag71xx *ag)
+{
+	unsigned int mii_speed;
+	u32 t;
+
+	if (!ag->mii_base)
+		return;
+
+	switch (ag->speed) {
+	case SPEED_10:
+		mii_speed =  AR71XX_MII_CTRL_SPEED_10;
+		break;
+	case SPEED_100:
+		mii_speed =  AR71XX_MII_CTRL_SPEED_100;
+		break;
+	case SPEED_1000:
+		mii_speed =  AR71XX_MII_CTRL_SPEED_1000;
+		break;
+	default:
+		BUG();
+	}
+
+	t = __raw_readl(ag->mii_base);
+	t &= ~(AR71XX_MII_CTRL_IF_MASK);
+	t |= (mii_speed & AR71XX_MII_CTRL_IF_MASK);
+	__raw_writel(t, ag->mii_base);
+}
+
+static void
+__ag71xx_link_adjust(struct ag71xx *ag, bool update)
+{
+	struct device_node *np = ag->pdev->dev.of_node;
+	u32 cfg2;
+	u32 ifctl;
+	u32 fifo5;
+
+	if (!ag->link && update) {
+		ag71xx_hw_stop(ag);
+		netif_carrier_off(ag->dev);
+		if (netif_msg_link(ag))
+			pr_info("%s: link down\n", ag->dev->name);
+		return;
+	}
+
+	if (!of_device_is_compatible(np, "qca,ar9130-eth") &&
+	    !of_device_is_compatible(np, "qca,ar7100-eth"))
+		ag71xx_fast_reset(ag);
+
+	cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2);
+	cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX);
+	cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0;
+
+	ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL);
+	ifctl &= ~(MAC_IFCTL_SPEED);
+
+	fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5);
+	fifo5 &= ~FIFO_CFG5_BM;
+
+	switch (ag->speed) {
+	case SPEED_1000:
+		cfg2 |= MAC_CFG2_IF_1000;
+		fifo5 |= FIFO_CFG5_BM;
+		break;
+	case SPEED_100:
+		cfg2 |= MAC_CFG2_IF_10_100;
+		ifctl |= MAC_IFCTL_SPEED;
+		break;
+	case SPEED_10:
+		cfg2 |= MAC_CFG2_IF_10_100;
+		break;
+	default:
+		BUG();
+		return;
+	}
+
+	if (ag->tx_ring.desc_split) {
+		ag->fifodata[2] &= 0xffff;
+		ag->fifodata[2] |= ((2048 - ag->tx_ring.desc_split) / 4) << 16;
+	}
+
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, ag->fifodata[2]);
+
+	if (update) {
+		if (of_device_is_compatible(np, "qca,ar7100-eth")) {
+			ath79_set_pll(ag);
+			ath79_mii_ctrl_set_speed(ag);
+		} else if (of_device_is_compatible(np, "qca,ar7242-eth")) {
+			ath79_set_pll(ag);
+		} else if (of_device_is_compatible(np, "qca,ar9130-eth")) {
+		} else if (of_device_is_compatible(np, "qca,ar9340-eth")) {
+		} else if (of_device_is_compatible(np, "qca,qca9550-eth")) {
+		} else if (of_device_is_compatible(np, "qca,qca9560-eth")) {
+		}
+	}
+
+	ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
+	ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
+
+	if (of_device_is_compatible(np, "qca,qca9530-eth")) {
+		/*
+		 * The rx ring buffer can stall on small packets on QCA953x and
+		 * QCA956x. Disabling the inline checksum engine fixes the stall.
+		 * The wr, rr functions cannot be used since this hidden register
+		 * is outside of the normal ag71xx register block.
+		 */
+		void __iomem *dam = ioremap_nocache(0xb90001bc, 0x4);
+		if (dam) {
+			__raw_writel(__raw_readl(dam) & ~BIT(27), dam);
+			(void)__raw_readl(dam);
+			iounmap(dam);
+		}
+	}
+
+	ag71xx_hw_start(ag);
+
+	netif_carrier_on(ag->dev);
+	if (update && netif_msg_link(ag))
+		pr_info("%s: link up (%sMbps/%s duplex)\n",
+			ag->dev->name,
+			ag71xx_speed_str(ag),
+			(DUPLEX_FULL == ag->duplex) ? "Full" : "Half");
+
+	DBG("%s: fifo_cfg0=%#x, fifo_cfg1=%#x, fifo_cfg2=%#x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2));
+
+	DBG("%s: fifo_cfg3=%#x, fifo_cfg4=%#x, fifo_cfg5=%#x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5));
+
+	DBG("%s: mac_cfg2=%#x, mac_ifctl=%#x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_MAC_CFG2),
+		ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL));
+}
+
+void ag71xx_link_adjust(struct ag71xx *ag)
+{
+	__ag71xx_link_adjust(ag, true);
+}
+
+static int ag71xx_hw_enable(struct ag71xx *ag)
+{
+	int ret;
+
+	ret = ag71xx_rings_init(ag);
+	if (ret)
+		return ret;
+
+	napi_enable(&ag->napi);
+	ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma);
+	ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->rx_ring.descs_dma);
+	netif_start_queue(ag->dev);
+
+	return 0;
+}
+
+static void ag71xx_hw_disable(struct ag71xx *ag)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ag->lock, flags);
+
+	netif_stop_queue(ag->dev);
+
+	ag71xx_hw_stop(ag);
+	ag71xx_dma_reset(ag);
+
+	napi_disable(&ag->napi);
+	del_timer_sync(&ag->oom_timer);
+
+	spin_unlock_irqrestore(&ag->lock, flags);
+
+	ag71xx_rings_cleanup(ag);
+}
+
+static int ag71xx_open(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	unsigned int max_frame_len;
+	int ret;
+
+	netif_carrier_off(dev);
+	max_frame_len = ag71xx_max_frame_len(dev->mtu);
+	ag->rx_buf_size = SKB_DATA_ALIGN(max_frame_len + NET_SKB_PAD + NET_IP_ALIGN);
+
+	/* setup max frame length */
+	ag71xx_wr(ag, AG71XX_REG_MAC_MFL, max_frame_len);
+	ag71xx_hw_set_macaddr(ag, dev->dev_addr);
+
+	ret = ag71xx_hw_enable(ag);
+	if (ret)
+		goto err;
+
+	ag71xx_ar7240_start(ag);
+	phy_start(ag->phy_dev);
+
+	return 0;
+
+err:
+	ag71xx_rings_cleanup(ag);
+	return ret;
+}
+
+static int ag71xx_stop(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	netif_carrier_off(dev);
+	phy_stop(ag->phy_dev);
+	ag71xx_hw_disable(ag);
+
+	return 0;
+}
+
+static int ag71xx_fill_dma_desc(struct ag71xx_ring *ring, u32 addr, int len)
+{
+	int i;
+	struct ag71xx_desc *desc;
+	int ring_mask = BIT(ring->order) - 1;
+	int ndesc = 0;
+	int split = ring->desc_split;
+
+	if (!split)
+		split = len;
+
+	while (len > 0) {
+		unsigned int cur_len = len;
+
+		i = (ring->curr + ndesc) & ring_mask;
+		desc = ag71xx_ring_desc(ring, i);
+
+		if (!ag71xx_desc_empty(desc))
+			return -1;
+
+		if (cur_len > split) {
+			cur_len = split;
+
+			/*
+			 * TX will hang if DMA transfers <= 4 bytes,
+			 * make sure next segment is more than 4 bytes long.
+			 */
+			if (len <= split + 4)
+				cur_len -= 4;
+		}
+
+		desc->data = addr;
+		addr += cur_len;
+		len -= cur_len;
+
+		if (len > 0)
+			cur_len |= DESC_MORE;
+
+		/* prevent early tx attempt of this descriptor */
+		if (!ndesc)
+			cur_len |= DESC_EMPTY;
+
+		desc->ctrl = cur_len;
+		ndesc++;
+	}
+
+	return ndesc;
+}
+
+static netdev_tx_t ag71xx_hard_start_xmit(struct sk_buff *skb,
+					  struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	struct ag71xx_ring *ring = &ag->tx_ring;
+	int ring_mask = BIT(ring->order) - 1;
+	int ring_size = BIT(ring->order);
+	struct ag71xx_desc *desc;
+	dma_addr_t dma_addr;
+	int i, n, ring_min;
+
+	if (skb->len <= 4) {
+		DBG("%s: packet len is too small\n", ag->dev->name);
+		goto err_drop;
+	}
+
+	dma_addr = dma_map_single(&dev->dev, skb->data, skb->len,
+				  DMA_TO_DEVICE);
+
+	i = ring->curr & ring_mask;
+	desc = ag71xx_ring_desc(ring, i);
+
+	/* setup descriptor fields */
+	n = ag71xx_fill_dma_desc(ring, (u32) dma_addr, skb->len & ag->desc_pktlen_mask);
+	if (n < 0)
+		goto err_drop_unmap;
+
+	i = (ring->curr + n - 1) & ring_mask;
+	ring->buf[i].len = skb->len;
+	ring->buf[i].skb = skb;
+
+	netdev_sent_queue(dev, skb->len);
+
+	skb_tx_timestamp(skb);
+
+	desc->ctrl &= ~DESC_EMPTY;
+	ring->curr += n;
+
+	/* flush descriptor */
+	wmb();
+
+	ring_min = 2;
+	if (ring->desc_split)
+	    ring_min *= AG71XX_TX_RING_DS_PER_PKT;
+
+	if (ring->curr - ring->dirty >= ring_size - ring_min) {
+		DBG("%s: tx queue full\n", dev->name);
+		netif_stop_queue(dev);
+	}
+
+	DBG("%s: packet injected into TX queue\n", ag->dev->name);
+
+	/* enable TX engine */
+	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE);
+
+	return NETDEV_TX_OK;
+
+err_drop_unmap:
+	dma_unmap_single(&dev->dev, dma_addr, skb->len, DMA_TO_DEVICE);
+
+err_drop:
+	dev->stats.tx_dropped++;
+
+	dev_kfree_skb(skb);
+	return NETDEV_TX_OK;
+}
+
+static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	int ret;
+
+	switch (cmd) {
+	case SIOCETHTOOL:
+		if (ag->phy_dev == NULL)
+			break;
+
+		spin_lock_irq(&ag->lock);
+		ret = phy_ethtool_ioctl(ag->phy_dev, (void *) ifr->ifr_data);
+		spin_unlock_irq(&ag->lock);
+		return ret;
+
+	case SIOCSIFHWADDR:
+		if (copy_from_user
+			(dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr)))
+			return -EFAULT;
+		return 0;
+
+	case SIOCGIFHWADDR:
+		if (copy_to_user
+			(ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr)))
+			return -EFAULT;
+		return 0;
+
+	case SIOCGMIIPHY:
+	case SIOCGMIIREG:
+	case SIOCSMIIREG:
+		if (ag->phy_dev == NULL)
+			break;
+
+		return phy_mii_ioctl(ag->phy_dev, ifr, cmd);
+
+	default:
+		break;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static void ag71xx_oom_timer_handler(unsigned long data)
+{
+	struct net_device *dev = (struct net_device *) data;
+	struct ag71xx *ag = netdev_priv(dev);
+
+	napi_schedule(&ag->napi);
+}
+
+static void ag71xx_tx_timeout(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	if (netif_msg_tx_err(ag))
+		pr_info("%s: tx timeout\n", ag->dev->name);
+
+	schedule_delayed_work(&ag->restart_work, 1);
+}
+
+static void ag71xx_restart_work_func(struct work_struct *work)
+{
+	struct ag71xx *ag = container_of(work, struct ag71xx, restart_work.work);
+
+	rtnl_lock();
+	ag71xx_hw_disable(ag);
+	ag71xx_hw_enable(ag);
+	if (ag->link)
+		__ag71xx_link_adjust(ag, false);
+	rtnl_unlock();
+}
+
+static bool ag71xx_check_dma_stuck(struct ag71xx *ag)
+{
+	unsigned long timestamp;
+	u32 rx_sm, tx_sm, rx_fd;
+
+	timestamp = netdev_get_tx_queue(ag->dev, 0)->trans_start;
+	if (likely(time_before(jiffies, timestamp + HZ/10)))
+		return false;
+
+	if (!netif_carrier_ok(ag->dev))
+		return false;
+
+	rx_sm = ag71xx_rr(ag, AG71XX_REG_RX_SM);
+	if ((rx_sm & 0x7) == 0x3 && ((rx_sm >> 4) & 0x7) == 0x6)
+		return true;
+
+	tx_sm = ag71xx_rr(ag, AG71XX_REG_TX_SM);
+	rx_fd = ag71xx_rr(ag, AG71XX_REG_FIFO_DEPTH);
+	if (((tx_sm >> 4) & 0x7) == 0 && ((rx_sm & 0x7) == 0) &&
+	    ((rx_sm >> 4) & 0x7) == 0 && rx_fd == 0)
+		return true;
+
+	return false;
+}
+
+static int ag71xx_tx_packets(struct ag71xx *ag, bool flush)
+{
+	struct ag71xx_ring *ring = &ag->tx_ring;
+	bool dma_stuck = false;
+	int ring_mask = BIT(ring->order) - 1;
+	int ring_size = BIT(ring->order);
+	int sent = 0;
+	int bytes_compl = 0;
+	int n = 0;
+
+	DBG("%s: processing TX ring\n", ag->dev->name);
+
+	while (ring->dirty + n != ring->curr) {
+		unsigned int i = (ring->dirty + n) & ring_mask;
+		struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+		struct sk_buff *skb = ring->buf[i].skb;
+
+		if (!flush && !ag71xx_desc_empty(desc)) {
+			if (ag->tx_hang_workaround &&
+			    ag71xx_check_dma_stuck(ag)) {
+				schedule_delayed_work(&ag->restart_work, HZ / 2);
+				dma_stuck = true;
+			}
+			break;
+		}
+
+		if (flush)
+			desc->ctrl |= DESC_EMPTY;
+
+		n++;
+		if (!skb)
+			continue;
+
+		dev_kfree_skb_any(skb);
+		ring->buf[i].skb = NULL;
+
+		bytes_compl += ring->buf[i].len;
+
+		sent++;
+		ring->dirty += n;
+
+		while (n > 0) {
+			ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
+			n--;
+		}
+	}
+
+	DBG("%s: %d packets sent out\n", ag->dev->name, sent);
+
+	if (!sent)
+		return 0;
+
+	ag->dev->stats.tx_bytes += bytes_compl;
+	ag->dev->stats.tx_packets += sent;
+
+	netdev_completed_queue(ag->dev, sent, bytes_compl);
+	if ((ring->curr - ring->dirty) < (ring_size * 3) / 4)
+		netif_wake_queue(ag->dev);
+
+	if (!dma_stuck)
+		cancel_delayed_work(&ag->restart_work);
+
+	return sent;
+}
+
+static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
+{
+	struct net_device *dev = ag->dev;
+	struct ag71xx_ring *ring = &ag->rx_ring;
+	unsigned int pktlen_mask = ag->desc_pktlen_mask;
+	unsigned int offset = ag->rx_buf_offset;
+	int ring_mask = BIT(ring->order) - 1;
+	int ring_size = BIT(ring->order);
+	struct sk_buff_head queue;
+	struct sk_buff *skb;
+	int done = 0;
+
+	DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n",
+			dev->name, limit, ring->curr, ring->dirty);
+
+	skb_queue_head_init(&queue);
+
+	while (done < limit) {
+		unsigned int i = ring->curr & ring_mask;
+		struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
+		int pktlen;
+		int err = 0;
+
+		if (ag71xx_desc_empty(desc))
+			break;
+
+		if ((ring->dirty + ring_size) == ring->curr) {
+			ag71xx_assert(0);
+			break;
+		}
+
+		ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
+
+		pktlen = desc->ctrl & pktlen_mask;
+		pktlen -= ETH_FCS_LEN;
+
+		dma_unmap_single(&dev->dev, ring->buf[i].dma_addr,
+				 ag->rx_buf_size, DMA_FROM_DEVICE);
+
+		dev->stats.rx_packets++;
+		dev->stats.rx_bytes += pktlen;
+
+		skb = build_skb(ring->buf[i].rx_buf, ag71xx_buffer_size(ag));
+		if (!skb) {
+			skb_free_frag(ring->buf[i].rx_buf);
+			goto next;
+		}
+
+		skb_reserve(skb, offset);
+		skb_put(skb, pktlen);
+
+		if (err) {
+			dev->stats.rx_dropped++;
+			kfree_skb(skb);
+		} else {
+			skb->dev = dev;
+			skb->ip_summed = CHECKSUM_NONE;
+			__skb_queue_tail(&queue, skb);
+		}
+
+next:
+		ring->buf[i].rx_buf = NULL;
+		done++;
+
+		ring->curr++;
+	}
+
+	ag71xx_ring_rx_refill(ag);
+
+	while ((skb = __skb_dequeue(&queue)) != NULL) {
+		skb->protocol = eth_type_trans(skb, dev);
+		netif_receive_skb(skb);
+	}
+
+	DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n",
+		dev->name, ring->curr, ring->dirty, done);
+
+	return done;
+}
+
+static int ag71xx_poll(struct napi_struct *napi, int limit)
+{
+	struct ag71xx *ag = container_of(napi, struct ag71xx, napi);
+	struct net_device *dev = ag->dev;
+	struct ag71xx_ring *rx_ring = &ag->rx_ring;
+	int rx_ring_size = BIT(rx_ring->order);
+	unsigned long flags;
+	u32 status;
+	int tx_done;
+	int rx_done;
+
+	tx_done = ag71xx_tx_packets(ag, false);
+
+	DBG("%s: processing RX ring\n", dev->name);
+	rx_done = ag71xx_rx_packets(ag, limit);
+
+	ag71xx_debugfs_update_napi_stats(ag, rx_done, tx_done);
+
+	if (rx_ring->buf[rx_ring->dirty % rx_ring_size].rx_buf == NULL)
+		goto oom;
+
+	status = ag71xx_rr(ag, AG71XX_REG_RX_STATUS);
+	if (unlikely(status & RX_STATUS_OF)) {
+		ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_OF);
+		dev->stats.rx_fifo_errors++;
+
+		/* restart RX */
+		ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
+	}
+
+	if (rx_done < limit) {
+		if (status & RX_STATUS_PR)
+			goto more;
+
+		status = ag71xx_rr(ag, AG71XX_REG_TX_STATUS);
+		if (status & TX_STATUS_PS)
+			goto more;
+
+		DBG("%s: disable polling mode, rx=%d, tx=%d,limit=%d\n",
+			dev->name, rx_done, tx_done, limit);
+
+		napi_complete(napi);
+
+		/* enable interrupts */
+		spin_lock_irqsave(&ag->lock, flags);
+		ag71xx_int_enable(ag, AG71XX_INT_POLL);
+		spin_unlock_irqrestore(&ag->lock, flags);
+		return rx_done;
+	}
+
+more:
+	DBG("%s: stay in polling mode, rx=%d, tx=%d, limit=%d\n",
+			dev->name, rx_done, tx_done, limit);
+	return limit;
+
+oom:
+	if (netif_msg_rx_err(ag))
+		pr_info("%s: out of memory\n", dev->name);
+
+	mod_timer(&ag->oom_timer, jiffies + AG71XX_OOM_REFILL);
+	napi_complete(napi);
+	return 0;
+}
+
+static irqreturn_t ag71xx_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	struct ag71xx *ag = netdev_priv(dev);
+	u32 status;
+
+	status = ag71xx_rr(ag, AG71XX_REG_INT_STATUS);
+	ag71xx_dump_intr(ag, "raw", status);
+
+	if (unlikely(!status))
+		return IRQ_NONE;
+
+	if (unlikely(status & AG71XX_INT_ERR)) {
+		if (status & AG71XX_INT_TX_BE) {
+			ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE);
+			dev_err(&dev->dev, "TX BUS error\n");
+		}
+		if (status & AG71XX_INT_RX_BE) {
+			ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE);
+			dev_err(&dev->dev, "RX BUS error\n");
+		}
+	}
+
+	if (likely(status & AG71XX_INT_POLL)) {
+		ag71xx_int_disable(ag, AG71XX_INT_POLL);
+		DBG("%s: enable polling mode\n", dev->name);
+		napi_schedule(&ag->napi);
+	}
+
+	ag71xx_debugfs_update_int_stats(ag, status);
+
+	return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void ag71xx_netpoll(struct net_device *dev)
+{
+	disable_irq(dev->irq);
+	ag71xx_interrupt(dev->irq, dev);
+	enable_irq(dev->irq);
+}
+#endif
+
+static int ag71xx_change_mtu(struct net_device *dev, int new_mtu)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	dev->mtu = new_mtu;
+	ag71xx_wr(ag, AG71XX_REG_MAC_MFL,
+		  ag71xx_max_frame_len(dev->mtu));
+
+	return 0;
+}
+
+static const struct net_device_ops ag71xx_netdev_ops = {
+	.ndo_open		= ag71xx_open,
+	.ndo_stop		= ag71xx_stop,
+	.ndo_start_xmit		= ag71xx_hard_start_xmit,
+	.ndo_do_ioctl		= ag71xx_do_ioctl,
+	.ndo_tx_timeout		= ag71xx_tx_timeout,
+	.ndo_change_mtu		= ag71xx_change_mtu,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_validate_addr	= eth_validate_addr,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= ag71xx_netpoll,
+#endif
+};
+
+static const char *ag71xx_get_phy_if_mode_name(phy_interface_t mode)
+{
+	switch (mode) {
+	case PHY_INTERFACE_MODE_MII:
+		return "MII";
+	case PHY_INTERFACE_MODE_GMII:
+		return "GMII";
+	case PHY_INTERFACE_MODE_RMII:
+		return "RMII";
+	case PHY_INTERFACE_MODE_RGMII:
+		return "RGMII";
+	case PHY_INTERFACE_MODE_SGMII:
+		return "SGMII";
+	default:
+		break;
+	}
+
+	return "unknown";
+}
+
+static void ag71xx_of_bit(struct device_node *np, const char *prop,
+			  u32 *reg, u32 mask)
+{
+	u32 val;
+
+	if (of_property_read_u32(np, prop, &val))
+		return;
+
+	if (val)
+		*reg |= mask;
+	else
+		*reg &= ~mask;
+}
+
+static void ag71xx_setup_gmac_933x(struct device_node *np, void __iomem *base)
+{
+	u32 val = __raw_readl(base + AR933X_GMAC_REG_ETH_CFG);
+
+	ag71xx_of_bit(np, "switch-phy-swap", &val, AR933X_ETH_CFG_SW_PHY_SWAP);
+	ag71xx_of_bit(np, "switch-phy-addr-swap", &val,
+		      AR933X_ETH_CFG_SW_PHY_ADDR_SWAP);
+
+	__raw_writel(val, base + AR933X_GMAC_REG_ETH_CFG);
+}
+
+static int ag71xx_setup_gmac(struct device_node *np)
+{
+	struct device_node *np_dev;
+	void __iomem *base;
+	int err = 0;
+
+	np = of_get_child_by_name(np, "gmac-config");
+	if (!np)
+		return 0;
+
+	np_dev = of_parse_phandle(np, "device", 0);
+	if (!np_dev)
+		goto out;
+
+	base = of_iomap(np_dev, 0);
+	if (!base) {
+		pr_err("%pOF: can't map GMAC registers\n", np_dev);
+		err = -ENOMEM;
+		goto err_iomap;
+	}
+
+	if (of_device_is_compatible(np_dev, "qca,ar9330-gmac"))
+		ag71xx_setup_gmac_933x(np_dev, base);
+
+	iounmap(base);
+
+err_iomap:
+	of_node_put(np_dev);
+out:
+	of_node_put(np);
+	return err;
+}
+
+static int ag71xx_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct net_device *dev;
+	struct resource *res;
+	struct ag71xx *ag;
+	const void *mac_addr;
+	u32 max_frame_len;
+	int tx_size, err;
+
+	if (!np)
+		return -ENODEV;
+
+	dev = alloc_etherdev(sizeof(*ag));
+	if (!dev)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
+
+	err = ag71xx_setup_gmac(np);
+	if (err)
+		return err;
+
+	SET_NETDEV_DEV(dev, &pdev->dev);
+
+	ag = netdev_priv(dev);
+	ag->pdev = pdev;
+	ag->dev = dev;
+	ag->msg_enable = netif_msg_init(ag71xx_msg_level,
+					AG71XX_DEFAULT_MSG_ENABLE);
+	spin_lock_init(&ag->lock);
+
+	ag->mac_reset = devm_reset_control_get(&pdev->dev, "mac");
+	if (IS_ERR(ag->mac_reset)) {
+		dev_err(&pdev->dev, "missing mac reset\n");
+		err = PTR_ERR(ag->mac_reset);
+		goto err_free;
+	}
+
+	ag->phy_reset = devm_reset_control_get_optional(&pdev->dev, "phy");
+
+	if (of_property_read_u32_array(np, "fifo-data", ag->fifodata, 3)) {
+		if (of_device_is_compatible(np, "qca,ar9130-eth") ||
+		    of_device_is_compatible(np, "qca,ar7100-eth")) {
+			ag->fifodata[0] = 0x0fff0000;
+			ag->fifodata[1] = 0x00001fff;
+		} else {
+			ag->fifodata[0] = 0x0010ffff;
+			ag->fifodata[1] = 0x015500aa;
+			ag->fifodata[2] = 0x01f00140;
+		}
+		if (of_device_is_compatible(np, "qca,ar9130-eth"))
+			ag->fifodata[2] = 0x00780fff;
+		else if (of_device_is_compatible(np, "qca,ar7100-eth"))
+			ag->fifodata[2] = 0x008001ff;
+	}
+
+	if (of_property_read_u32_array(np, "pll-data", ag->plldata, 3))
+		dev_dbg(&pdev->dev, "failed to read pll-data property\n");
+
+	if (of_property_read_u32_array(np, "pll-reg", ag->pllreg, 3))
+		dev_dbg(&pdev->dev, "failed to read pll-reg property\n");
+
+	ag->pllregmap = syscon_regmap_lookup_by_phandle(np, "pll-handle");
+	if (IS_ERR(ag->pllregmap)) {
+		dev_dbg(&pdev->dev, "failed to read pll-handle property\n");
+		ag->pllregmap = NULL;
+	}
+
+	ag->mac_base = devm_ioremap_nocache(&pdev->dev, res->start,
+					    res->end - res->start + 1);
+	if (!ag->mac_base) {
+		err = -ENOMEM;
+		goto err_free;
+	}
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (res) {
+		ag->mii_base = devm_ioremap_nocache(&pdev->dev, res->start,
+					    res->end - res->start + 1);
+		if (!ag->mii_base) {
+			err = -ENOMEM;
+			goto err_free;
+		}
+	}
+
+	dev->irq = platform_get_irq(pdev, 0);
+	err = devm_request_irq(&pdev->dev, dev->irq, ag71xx_interrupt,
+			       0x0, dev_name(&pdev->dev), dev);
+	if (err) {
+		dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq);
+		goto err_free;
+	}
+
+	dev->netdev_ops = &ag71xx_netdev_ops;
+	dev->ethtool_ops = &ag71xx_ethtool_ops;
+
+	INIT_DELAYED_WORK(&ag->restart_work, ag71xx_restart_work_func);
+
+	init_timer(&ag->oom_timer);
+	ag->oom_timer.data = (unsigned long) dev;
+	ag->oom_timer.function = ag71xx_oom_timer_handler;
+
+	tx_size = AG71XX_TX_RING_SIZE_DEFAULT;
+	ag->rx_ring.order = ag71xx_ring_size_order(AG71XX_RX_RING_SIZE_DEFAULT);
+
+	if (of_device_is_compatible(np, "qca,ar9340-eth") ||
+	    of_device_is_compatible(np, "qca,qca9530-eth") ||
+	    of_device_is_compatible(np, "qca,qca9550-eth") ||
+	    of_device_is_compatible(np, "qca,qca9560-eth"))
+		ag->desc_pktlen_mask = SZ_16K - 1;
+	else
+		ag->desc_pktlen_mask = SZ_4K - 1;
+
+	if (ag->desc_pktlen_mask == SZ_16K - 1 &&
+	    !of_device_is_compatible(np, "qca,qca9550-eth") &&
+	    !of_device_is_compatible(np, "qca,qca9560-eth"))
+		max_frame_len = ag->desc_pktlen_mask;
+	else
+		max_frame_len = 1540;
+
+	dev->min_mtu = 68;
+	dev->max_mtu = max_frame_len - ag71xx_max_frame_len(0);
+
+	if (of_device_is_compatible(np, "qca,ar7240-eth"))
+		ag->tx_hang_workaround = 1;
+
+	ag->rx_buf_offset = NET_SKB_PAD;
+	if (!of_device_is_compatible(np, "qca,ar7100-eth") &&
+	    !of_device_is_compatible(np, "qca,ar9130-eth"))
+		ag->rx_buf_offset += NET_IP_ALIGN;
+
+	if (of_device_is_compatible(np, "qca,ar7100-eth")) {
+		ag->tx_ring.desc_split = AG71XX_TX_RING_SPLIT;
+		tx_size *= AG71XX_TX_RING_DS_PER_PKT;
+	}
+	ag->tx_ring.order = ag71xx_ring_size_order(tx_size);
+
+	ag->stop_desc = dmam_alloc_coherent(&pdev->dev,
+					    sizeof(struct ag71xx_desc),
+					    &ag->stop_desc_dma, GFP_KERNEL);
+	if (!ag->stop_desc)
+		goto err_free;
+
+	ag->stop_desc->data = 0;
+	ag->stop_desc->ctrl = 0;
+	ag->stop_desc->next = (u32) ag->stop_desc_dma;
+
+	mac_addr = of_get_mac_address(np);
+	if (mac_addr)
+		memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
+	if (!mac_addr || !is_valid_ether_addr(dev->dev_addr)) {
+		dev_err(&pdev->dev, "invalid MAC address, using random address\n");
+		eth_random_addr(dev->dev_addr);
+	}
+
+	ag->phy_if_mode = of_get_phy_mode(np);
+	if (ag->phy_if_mode < 0) {
+		dev_err(&pdev->dev, "missing phy-mode property in DT\n");
+		err = ag->phy_if_mode;
+		goto err_free;
+	}
+
+	netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
+
+	ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, 0);
+	ag71xx_hw_init(ag);
+	ag71xx_mdio_init(ag);
+
+	err = ag71xx_phy_connect(ag);
+	if (err)
+		goto err_mdio_free;
+
+	err = ag71xx_debugfs_init(ag);
+	if (err)
+		goto err_phy_disconnect;
+
+	platform_set_drvdata(pdev, dev);
+
+	err = register_netdev(dev);
+	if (err) {
+		dev_err(&pdev->dev, "unable to register net device\n");
+		platform_set_drvdata(pdev, NULL);
+		ag71xx_debugfs_exit(ag);
+		goto err_phy_disconnect;
+	}
+
+	pr_info("%s: Atheros AG71xx at 0x%08lx, irq %d, mode:%s\n",
+		dev->name, (unsigned long) ag->mac_base, dev->irq,
+		ag71xx_get_phy_if_mode_name(ag->phy_if_mode));
+
+	return 0;
+
+err_phy_disconnect:
+	ag71xx_phy_disconnect(ag);
+err_mdio_free:
+	ag71xx_mdio_cleanup(ag);
+err_free:
+	free_netdev(dev);
+	return err;
+}
+
+static int ag71xx_remove(struct platform_device *pdev)
+{
+	struct net_device *dev = platform_get_drvdata(pdev);
+	struct ag71xx *ag;
+
+	if (!dev)
+		return 0;
+
+	ag = netdev_priv(dev);
+	ag71xx_debugfs_exit(ag);
+	ag71xx_phy_disconnect(ag);
+	ag71xx_mdio_cleanup(ag);
+	unregister_netdev(dev);
+	free_irq(dev->irq, dev);
+	iounmap(ag->mac_base);
+	kfree(dev);
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static const struct of_device_id ag71xx_match[] = {
+	{ .compatible = "qca,ar7100-eth" },
+	{ .compatible = "qca,ar7240-eth" },
+	{ .compatible = "qca,ar7241-eth" },
+	{ .compatible = "qca,ar7242-eth" },
+	{ .compatible = "qca,ar9130-eth" },
+	{ .compatible = "qca,ar9330-eth" },
+	{ .compatible = "qca,ar9340-eth" },
+	{ .compatible = "qca,qca9530-eth" },
+	{ .compatible = "qca,qca9550-eth" },
+	{ .compatible = "qca,qca9560-eth" },
+	{}
+};
+
+static struct platform_driver ag71xx_driver = {
+	.probe		= ag71xx_probe,
+	.remove		= ag71xx_remove,
+	.driver = {
+		.name	= AG71XX_DRV_NAME,
+		.of_match_table = ag71xx_match,
+	}
+};
+
+static int __init ag71xx_module_init(void)
+{
+	int ret;
+
+	ret = ag71xx_debugfs_root_init();
+	if (ret)
+		goto err_out;
+
+	ret = platform_driver_register(&ag71xx_driver);
+	if (ret)
+		goto err_debugfs_exit;
+
+	return 0;
+
+err_debugfs_exit:
+	ag71xx_debugfs_root_exit();
+err_out:
+	return ret;
+}
+
+static void __exit ag71xx_module_exit(void)
+{
+	platform_driver_unregister(&ag71xx_driver);
+	ag71xx_debugfs_root_exit();
+}
+
+module_init(ag71xx_module_init);
+module_exit(ag71xx_module_exit);
+
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
+MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org>");
+MODULE_AUTHOR("Felix Fietkau <nbd@nbd.name>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" AG71XX_DRV_NAME);
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c
new file mode 100644
index 0000000000..8c1572b181
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c
@@ -0,0 +1,218 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  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/clk.h>
+#include <linux/of_mdio.h>
+#include "ag71xx.h"
+
+#define AG71XX_MDIO_RETRY	1000
+#define AG71XX_MDIO_DELAY	5
+
+static int bus_count;
+
+static int ag71xx_mdio_wait_busy(struct ag71xx *ag)
+{
+	int i;
+
+	for (i = 0; i < AG71XX_MDIO_RETRY; i++) {
+		u32 busy;
+
+		udelay(AG71XX_MDIO_DELAY);
+
+		regmap_read(ag->mii_regmap, AG71XX_REG_MII_IND, &busy);
+		if (!busy)
+			return 0;
+
+		udelay(AG71XX_MDIO_DELAY);
+	}
+
+	pr_err("%s: MDIO operation timed out\n", ag->mii_bus->name);
+
+	return -ETIMEDOUT;
+}
+
+int ag71xx_mdio_mii_read(struct mii_bus *bus, int addr, int reg)
+{
+	struct ag71xx *ag = bus->priv;
+	int err;
+	int ret;
+
+	err = ag71xx_mdio_wait_busy(ag);
+	if (err)
+		return 0xffff;
+
+	regmap_write(ag->mii_regmap, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
+	regmap_write(ag->mii_regmap, AG71XX_REG_MII_ADDR,
+			((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff));
+	regmap_write(ag->mii_regmap, AG71XX_REG_MII_CMD, MII_CMD_READ);
+
+	err = ag71xx_mdio_wait_busy(ag);
+	if (err)
+		return 0xffff;
+
+	regmap_read(ag->mii_regmap, AG71XX_REG_MII_STATUS, &ret);
+	ret &= 0xffff;
+	regmap_write(ag->mii_regmap, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
+
+	DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret);
+
+	return ret;
+}
+
+int ag71xx_mdio_mii_write(struct mii_bus *bus, int addr, int reg, u16 val)
+{
+	struct ag71xx *ag = bus->priv;
+
+	DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val);
+
+	regmap_write(ag->mii_regmap, AG71XX_REG_MII_ADDR,
+			((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff));
+	regmap_write(ag->mii_regmap, AG71XX_REG_MII_CTRL, val);
+
+	ag71xx_mdio_wait_busy(ag);
+
+	return 0;
+}
+
+static int ar934x_mdio_clock_div(unsigned int rate)
+{
+	if (rate == 100 * 1000 * 1000)
+		return 6; /* 100 MHz clock divided by 20 => 5 MHz */
+	else if (rate == 25 * 1000 * 1000)
+		return 0; /* 25 MHz clock divided by 4 => 6.25 MHz */
+	else
+		return 3; /* 40 MHz clock divided by 8 => 5 MHz */
+}
+
+static int ag71xx_mdio_reset(struct mii_bus *bus)
+{
+	struct device_node *np = bus->dev.of_node;
+	struct ag71xx *ag = bus->priv;
+	struct device_node *np_ag = ag->pdev->dev.of_node;
+	bool builtin_switch;
+	u32 t;
+
+	builtin_switch = of_property_read_bool(np, "builtin-switch");
+
+	if (of_device_is_compatible(np_ag, "qca,ar7240-eth"))
+		t = MII_CFG_CLK_DIV_6;
+	else if (of_device_is_compatible(np_ag, "qca,ar9340-eth"))
+		t = MII_CFG_CLK_DIV_58;
+	else if (builtin_switch)
+		t = MII_CFG_CLK_DIV_10;
+	else
+		t = MII_CFG_CLK_DIV_28;
+
+	if (builtin_switch && of_device_is_compatible(np_ag, "qca,ar9340-eth")) {
+		struct clk *ref_clk = of_clk_get(np, 0);
+		int clock_rate;
+
+		if (WARN_ON_ONCE(!ref_clk))
+			clock_rate = 40 * 1000 * 1000;
+		else
+			clock_rate = clk_get_rate(ref_clk);
+
+		t = ar934x_mdio_clock_div(clock_rate);
+		clk_put(ref_clk);
+	}
+
+	regmap_write(ag->mii_regmap, AG71XX_REG_MII_CFG, t | MII_CFG_RESET);
+	udelay(100);
+
+	regmap_write(ag->mii_regmap, AG71XX_REG_MII_CFG, t);
+	udelay(100);
+
+	return 0;
+}
+
+int ag71xx_mdio_init(struct ag71xx *ag)
+{
+	struct device *parent = &ag->pdev->dev;
+	struct device_node *np;
+	struct mii_bus *mii_bus;
+	bool builtin_switch;
+	int i, err;
+
+	np = of_get_child_by_name(parent->of_node, "mdio-bus");
+	if (!np)
+		return -ENODEV;
+
+	if (!of_device_is_available(np)) {
+		err = 0;
+		goto err_out;
+	}
+
+	ag->mii_regmap = syscon_regmap_lookup_by_phandle(np, "regmap");
+	if (!ag->mii_regmap)
+		return -ENOENT;
+
+	mii_bus = devm_mdiobus_alloc(parent);
+	if (!mii_bus) {
+		err = -ENOMEM;
+		goto err_out;
+	}
+
+	ag->mdio_reset = of_reset_control_get_exclusive(np, "mdio");
+	builtin_switch = of_property_read_bool(np, "builtin-switch");
+
+	mii_bus->name = "mdio";
+	if (builtin_switch) {
+		mii_bus->read = ar7240sw_phy_read;
+		mii_bus->write = ar7240sw_phy_write;
+	} else {
+		mii_bus->read = ag71xx_mdio_mii_read;
+		mii_bus->write = ag71xx_mdio_mii_write;
+	}
+	mii_bus->reset = ag71xx_mdio_reset;
+	mii_bus->priv = ag;
+	mii_bus->parent = parent;
+	snprintf(mii_bus->id, MII_BUS_ID_SIZE, "%s.%d", np->name, bus_count++);
+
+	if (!builtin_switch &&
+	    of_property_read_u32(np, "phy-mask", &mii_bus->phy_mask))
+		mii_bus->phy_mask = 0;
+
+	for (i = 0; i < PHY_MAX_ADDR; i++)
+		mii_bus->irq[i] = PHY_POLL;
+
+	if (!IS_ERR(ag->mdio_reset)) {
+		reset_control_assert(ag->mdio_reset);
+		msleep(100);
+		reset_control_deassert(ag->mdio_reset);
+		msleep(200);
+	}
+
+	err = of_mdiobus_register(mii_bus, np);
+	if (err)
+		goto err_out;
+
+	ag->mii_bus = mii_bus;
+
+	if (builtin_switch)
+		ag71xx_ar7240_init(ag, np);
+
+	return 0;
+
+err_out:
+	of_node_put(np);
+	return err;
+}
+
+void ag71xx_mdio_cleanup(struct ag71xx *ag)
+{
+	if (!ag->mii_bus)
+		return;
+
+	ag71xx_ar7240_cleanup(ag);
+	mdiobus_unregister(ag->mii_bus);
+}
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c
new file mode 100644
index 0000000000..f9df38d530
--- /dev/null
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c
@@ -0,0 +1,92 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  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/of_mdio.h>
+#include "ag71xx.h"
+
+static void ag71xx_phy_link_adjust(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	struct phy_device *phydev = ag->phy_dev;
+	unsigned long flags;
+	int status_change = 0;
+
+	spin_lock_irqsave(&ag->lock, flags);
+
+	if (phydev->link) {
+		if (ag->duplex != phydev->duplex
+		    || ag->speed != phydev->speed) {
+			status_change = 1;
+		}
+	}
+
+	if (phydev->link != ag->link)
+		status_change = 1;
+
+	ag->link = phydev->link;
+	ag->duplex = phydev->duplex;
+	ag->speed = phydev->speed;
+
+	if (status_change)
+		ag71xx_link_adjust(ag);
+
+	spin_unlock_irqrestore(&ag->lock, flags);
+}
+
+int ag71xx_phy_connect(struct ag71xx *ag)
+{
+	struct device_node *np = ag->pdev->dev.of_node;
+	struct device_node *phy_node;
+	int ret;
+
+	if (of_phy_is_fixed_link(np)) {
+		ret = of_phy_register_fixed_link(np);
+		if (ret < 0) {
+			dev_err(&ag->pdev->dev,
+				"Failed to register fixed PHY link: %d\n", ret);
+			return ret;
+		}
+
+		phy_node = of_node_get(np);
+	} else {
+		phy_node = of_parse_phandle(np, "phy-handle", 0);
+	}
+
+	if (!phy_node) {
+		dev_err(&ag->pdev->dev,
+			"Could not find valid phy node\n");
+		return -ENODEV;
+	}
+
+	ag->phy_dev = of_phy_connect(ag->dev, phy_node, ag71xx_phy_link_adjust,
+				     0, ag->phy_if_mode);
+
+	of_node_put(phy_node);
+
+	if (!ag->phy_dev) {
+		dev_err(&ag->pdev->dev,
+			"Could not connect to PHY device\n");
+		return -ENODEV;
+	}
+
+	dev_info(&ag->pdev->dev, "connected to PHY at %s [uid=%08x, driver=%s]\n",
+		    phydev_name(ag->phy_dev),
+		    ag->phy_dev->phy_id, ag->phy_dev->drv->name);
+
+	return 0;
+}
+
+void ag71xx_phy_disconnect(struct ag71xx *ag)
+{
+	phy_disconnect(ag->phy_dev);
+}