From 5b34dffcbd6175d92f871b69098e027341b6c82e Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 14 May 2016 20:24:37 +0200
Subject: [PATCH] ar71xx: fix DDR write buffer flushing issues with 4.4

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 .../files-4.1/arch/mips/ath79/dev-eth.c       | 1315 +++++++++++++++++
 .../ar71xx/files/arch/mips/ath79/dev-eth.c    |   93 +-
 ...ath79_ddr_ctrl_init-compatible-for-n.patch |   31 +
 ...o-pass-probe-types-via-platform-data.patch |    2 +-
 ...td-m25p80-zero-partition-parser-data.patch |    2 +-
 .../431-spi-add-various-flags.patch           |    4 +-
 ...1-spi-add-type-field-to-spi_transfer.patch |    4 +-
 ...462-mtd-m25p80-set-spi-transfer-type.patch |    2 +-
 .../464-spi-ath79-fix-fast-flash-read.patch   |    4 +-
 ...525-MIPS-ath79-enable-qca-usb-quirks.patch |    8 +-
 ...MIPS-ath79-add-more-register-defines.patch |    4 +-
 .../609-MIPS-ath79-ap136-fixes.patch          |   14 +-
 ...PS-ath79-add-support-for-QCA953x-SoC.patch |    4 +-
 13 files changed, 1388 insertions(+), 99 deletions(-)
 create mode 100644 target/linux/ar71xx/files-4.1/arch/mips/ath79/dev-eth.c
 create mode 100644 target/linux/ar71xx/patches-4.4/101-MIPS-ath79-make-ath79_ddr_ctrl_init-compatible-for-n.patch

diff --git a/target/linux/ar71xx/files-4.1/arch/mips/ath79/dev-eth.c b/target/linux/ar71xx/files-4.1/arch/mips/ath79/dev-eth.c
new file mode 100644
index 0000000000..b43c80a376
--- /dev/null
+++ b/target/linux/ar71xx/files-4.1/arch/mips/ath79/dev-eth.c
@@ -0,0 +1,1315 @@
+/*
+ *  Atheros AR71xx SoC platform devices
+ *
+ *  Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
+ *  Copyright (C) 2008-2012 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Parts of this file are based on Atheros 2.6.15 BSP
+ *  Parts of this file are based on Atheros 2.6.31 BSP
+ *
+ *  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/init.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/clk.h>
+#include <linux/sizes.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/irq.h>
+
+#include "common.h"
+#include "dev-eth.h"
+
+unsigned char ath79_mac_base[ETH_ALEN] __initdata;
+
+static struct resource ath79_mdio0_resources[] = {
+	{
+		.name	= "mdio_base",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR71XX_GE0_BASE,
+		.end	= AR71XX_GE0_BASE + 0x200 - 1,
+	}
+};
+
+struct ag71xx_mdio_platform_data ath79_mdio0_data;
+
+struct platform_device ath79_mdio0_device = {
+	.name		= "ag71xx-mdio",
+	.id		= 0,
+	.resource	= ath79_mdio0_resources,
+	.num_resources	= ARRAY_SIZE(ath79_mdio0_resources),
+	.dev = {
+		.platform_data = &ath79_mdio0_data,
+	},
+};
+
+static struct resource ath79_mdio1_resources[] = {
+	{
+		.name	= "mdio_base",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR71XX_GE1_BASE,
+		.end	= AR71XX_GE1_BASE + 0x200 - 1,
+	}
+};
+
+struct ag71xx_mdio_platform_data ath79_mdio1_data;
+
+struct platform_device ath79_mdio1_device = {
+	.name		= "ag71xx-mdio",
+	.id		= 1,
+	.resource	= ath79_mdio1_resources,
+	.num_resources	= ARRAY_SIZE(ath79_mdio1_resources),
+	.dev = {
+		.platform_data = &ath79_mdio1_data,
+	},
+};
+
+static void ath79_set_pll(u32 cfg_reg, u32 pll_reg, u32 pll_val, u32 shift)
+{
+	void __iomem *base;
+	u32 t;
+
+	base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
+
+	t = __raw_readl(base + cfg_reg);
+	t &= ~(3 << shift);
+	t |=  (2 << shift);
+	__raw_writel(t, base + cfg_reg);
+	udelay(100);
+
+	__raw_writel(pll_val, base + pll_reg);
+
+	t |= (3 << shift);
+	__raw_writel(t, base + cfg_reg);
+	udelay(100);
+
+	t &= ~(3 << shift);
+	__raw_writel(t, base + cfg_reg);
+	udelay(100);
+
+	printk(KERN_DEBUG "ar71xx: pll_reg %#x: %#x\n",
+		(unsigned int)(base + pll_reg), __raw_readl(base + pll_reg));
+
+	iounmap(base);
+}
+
+static void __init ath79_mii_ctrl_set_if(unsigned int reg,
+					  unsigned int mii_if)
+{
+	void __iomem *base;
+	u32 t;
+
+	base = ioremap(AR71XX_MII_BASE, AR71XX_MII_SIZE);
+
+	t = __raw_readl(base + reg);
+	t &= ~(AR71XX_MII_CTRL_IF_MASK);
+	t |= (mii_if & AR71XX_MII_CTRL_IF_MASK);
+	__raw_writel(t, base + reg);
+
+	iounmap(base);
+}
+
+static void ath79_mii_ctrl_set_speed(unsigned int reg, unsigned int speed)
+{
+	void __iomem *base;
+	unsigned int mii_speed;
+	u32 t;
+
+	switch (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();
+	}
+
+	base = ioremap(AR71XX_MII_BASE, AR71XX_MII_SIZE);
+
+	t = __raw_readl(base + reg);
+	t &= ~(AR71XX_MII_CTRL_SPEED_MASK << AR71XX_MII_CTRL_SPEED_SHIFT);
+	t |= mii_speed  << AR71XX_MII_CTRL_SPEED_SHIFT;
+	__raw_writel(t, base + reg);
+
+	iounmap(base);
+}
+
+static unsigned long ar934x_get_mdio_ref_clock(void)
+{
+	void __iomem *base;
+	unsigned long ret;
+	u32 t;
+
+	base = ioremap(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
+
+	ret = 0;
+	t = __raw_readl(base + AR934X_PLL_SWITCH_CLOCK_CONTROL_REG);
+	if (t & AR934X_PLL_SWITCH_CLOCK_CONTROL_MDIO_CLK_SEL) {
+		ret = 100 * 1000 * 1000;
+	} else {
+		struct clk *clk;
+
+		clk = clk_get(NULL, "ref");
+		if (!IS_ERR(clk))
+			ret = clk_get_rate(clk);
+	}
+
+	iounmap(base);
+
+	return ret;
+}
+
+void __init ath79_register_mdio(unsigned int id, u32 phy_mask)
+{
+	struct platform_device *mdio_dev;
+	struct ag71xx_mdio_platform_data *mdio_data;
+	unsigned int max_id;
+
+	if (ath79_soc == ATH79_SOC_AR9341 ||
+	    ath79_soc == ATH79_SOC_AR9342 ||
+	    ath79_soc == ATH79_SOC_AR9344 ||
+	    ath79_soc == ATH79_SOC_QCA9556 ||
+	    ath79_soc == ATH79_SOC_QCA9558 ||
+	    ath79_soc == ATH79_SOC_QCA956X)
+		max_id = 1;
+	else
+		max_id = 0;
+
+	if (id > max_id) {
+		printk(KERN_ERR "ar71xx: invalid MDIO id %u\n", id);
+		return;
+	}
+
+	switch (ath79_soc) {
+	case ATH79_SOC_AR7241:
+	case ATH79_SOC_AR9330:
+	case ATH79_SOC_AR9331:
+	case ATH79_SOC_QCA9533:
+	case ATH79_SOC_TP9343:
+		mdio_dev = &ath79_mdio1_device;
+		mdio_data = &ath79_mdio1_data;
+		break;
+
+	case ATH79_SOC_AR9341:
+	case ATH79_SOC_AR9342:
+	case ATH79_SOC_AR9344:
+	case ATH79_SOC_QCA9556:
+	case ATH79_SOC_QCA9558:
+	case ATH79_SOC_QCA956X:
+		if (id == 0) {
+			mdio_dev = &ath79_mdio0_device;
+			mdio_data = &ath79_mdio0_data;
+		} else {
+			mdio_dev = &ath79_mdio1_device;
+			mdio_data = &ath79_mdio1_data;
+		}
+		break;
+
+	case ATH79_SOC_AR7242:
+		ath79_set_pll(AR71XX_PLL_REG_SEC_CONFIG,
+			       AR7242_PLL_REG_ETH0_INT_CLOCK, 0x62000000,
+			       AR71XX_ETH0_PLL_SHIFT);
+		/* fall through */
+	default:
+		mdio_dev = &ath79_mdio0_device;
+		mdio_data = &ath79_mdio0_data;
+		break;
+	}
+
+	mdio_data->phy_mask = phy_mask;
+
+	switch (ath79_soc) {
+	case ATH79_SOC_AR7240:
+		mdio_data->is_ar7240 = 1;
+		/* fall through */
+	case ATH79_SOC_AR7241:
+		mdio_data->builtin_switch = 1;
+		break;
+
+	case ATH79_SOC_AR9330:
+		mdio_data->is_ar9330 = 1;
+		/* fall through */
+	case ATH79_SOC_AR9331:
+		mdio_data->builtin_switch = 1;
+		break;
+
+	case ATH79_SOC_AR9341:
+	case ATH79_SOC_AR9342:
+	case ATH79_SOC_AR9344:
+		if (id == 1) {
+			mdio_data->builtin_switch = 1;
+			mdio_data->ref_clock = ar934x_get_mdio_ref_clock();
+			mdio_data->mdio_clock = 6250000;
+		}
+		mdio_data->is_ar934x = 1;
+		break;
+
+	case ATH79_SOC_QCA9533:
+	case ATH79_SOC_TP9343:
+		mdio_data->builtin_switch = 1;
+		break;
+
+	case ATH79_SOC_QCA9556:
+	case ATH79_SOC_QCA9558:
+		mdio_data->is_ar934x = 1;
+		break;
+
+	case ATH79_SOC_QCA956X:
+		if (id == 1)
+			mdio_data->builtin_switch = 1;
+		mdio_data->is_ar934x = 1;
+		break;
+
+	default:
+		break;
+	}
+
+	platform_device_register(mdio_dev);
+}
+
+struct ath79_eth_pll_data ath79_eth0_pll_data;
+struct ath79_eth_pll_data ath79_eth1_pll_data;
+
+static u32 ath79_get_eth_pll(unsigned int mac, int speed)
+{
+	struct ath79_eth_pll_data *pll_data;
+	u32 pll_val;
+
+	switch (mac) {
+	case 0:
+		pll_data = &ath79_eth0_pll_data;
+		break;
+	case 1:
+		pll_data = &ath79_eth1_pll_data;
+		break;
+	default:
+		BUG();
+	}
+
+	switch (speed) {
+	case SPEED_10:
+		pll_val = pll_data->pll_10;
+		break;
+	case SPEED_100:
+		pll_val = pll_data->pll_100;
+		break;
+	case SPEED_1000:
+		pll_val = pll_data->pll_1000;
+		break;
+	default:
+		BUG();
+	}
+
+	return pll_val;
+}
+
+static void ath79_set_speed_ge0(int speed)
+{
+	u32 val = ath79_get_eth_pll(0, speed);
+
+	ath79_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH0_INT_CLOCK,
+			val, AR71XX_ETH0_PLL_SHIFT);
+	ath79_mii_ctrl_set_speed(AR71XX_MII_REG_MII0_CTRL, speed);
+}
+
+static void ath79_set_speed_ge1(int speed)
+{
+	u32 val = ath79_get_eth_pll(1, speed);
+
+	ath79_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH1_INT_CLOCK,
+			 val, AR71XX_ETH1_PLL_SHIFT);
+	ath79_mii_ctrl_set_speed(AR71XX_MII_REG_MII1_CTRL, speed);
+}
+
+static void ar7242_set_speed_ge0(int speed)
+{
+	u32 val = ath79_get_eth_pll(0, speed);
+	void __iomem *base;
+
+	base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
+	__raw_writel(val, base + AR7242_PLL_REG_ETH0_INT_CLOCK);
+	iounmap(base);
+}
+
+static void ar91xx_set_speed_ge0(int speed)
+{
+	u32 val = ath79_get_eth_pll(0, speed);
+
+	ath79_set_pll(AR913X_PLL_REG_ETH_CONFIG, AR913X_PLL_REG_ETH0_INT_CLOCK,
+			 val, AR913X_ETH0_PLL_SHIFT);
+	ath79_mii_ctrl_set_speed(AR71XX_MII_REG_MII0_CTRL, speed);
+}
+
+static void ar91xx_set_speed_ge1(int speed)
+{
+	u32 val = ath79_get_eth_pll(1, speed);
+
+	ath79_set_pll(AR913X_PLL_REG_ETH_CONFIG, AR913X_PLL_REG_ETH1_INT_CLOCK,
+			 val, AR913X_ETH1_PLL_SHIFT);
+	ath79_mii_ctrl_set_speed(AR71XX_MII_REG_MII1_CTRL, speed);
+}
+
+static void ar934x_set_speed_ge0(int speed)
+{
+	void __iomem *base;
+	u32 val = ath79_get_eth_pll(0, speed);
+
+	base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
+	__raw_writel(val, base + AR934X_PLL_ETH_XMII_CONTROL_REG);
+	iounmap(base);
+}
+
+static void qca955x_set_speed_xmii(int speed)
+{
+	void __iomem *base;
+	u32 val = ath79_get_eth_pll(0, speed);
+
+	base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
+	__raw_writel(val, base + QCA955X_PLL_ETH_XMII_CONTROL_REG);
+	iounmap(base);
+}
+
+static void qca955x_set_speed_sgmii(int speed)
+{
+	void __iomem *base;
+	u32 val = ath79_get_eth_pll(1, speed);
+
+	base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
+	__raw_writel(val, base + QCA955X_PLL_ETH_SGMII_CONTROL_REG);
+	iounmap(base);
+}
+
+static void qca956x_set_speed_sgmii(int speed)
+{
+	void __iomem *base;
+	u32 val = ath79_get_eth_pll(0, speed);
+
+	base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
+	__raw_writel(val, base + QCA955X_PLL_ETH_SGMII_CONTROL_REG);
+	iounmap(base);
+}
+
+static void ath79_set_speed_dummy(int speed)
+{
+}
+
+static void ath79_ddr_no_flush(void)
+{
+}
+
+static void ath79_ddr_flush_ge0(void)
+{
+	ath79_ddr_wb_flush(AR71XX_DDR_REG_FLUSH_GE0);
+}
+
+static void ath79_ddr_flush_ge1(void)
+{
+	ath79_ddr_wb_flush(AR71XX_DDR_REG_FLUSH_GE1);
+}
+
+static void ar724x_ddr_flush_ge0(void)
+{
+	ath79_ddr_wb_flush(AR724X_DDR_REG_FLUSH_GE0);
+}
+
+static void ar724x_ddr_flush_ge1(void)
+{
+	ath79_ddr_wb_flush(AR724X_DDR_REG_FLUSH_GE1);
+}
+
+static void ar91xx_ddr_flush_ge0(void)
+{
+	ath79_ddr_wb_flush(AR913X_DDR_REG_FLUSH_GE0);
+}
+
+static void ar91xx_ddr_flush_ge1(void)
+{
+	ath79_ddr_wb_flush(AR913X_DDR_REG_FLUSH_GE1);
+}
+
+static void ar933x_ddr_flush_ge0(void)
+{
+	ath79_ddr_wb_flush(AR933X_DDR_REG_FLUSH_GE0);
+}
+
+static void ar933x_ddr_flush_ge1(void)
+{
+	ath79_ddr_wb_flush(AR933X_DDR_REG_FLUSH_GE1);
+}
+
+static struct resource ath79_eth0_resources[] = {
+	{
+		.name	= "mac_base",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR71XX_GE0_BASE,
+		.end	= AR71XX_GE0_BASE + 0x200 - 1,
+	}, {
+		.name	= "mac_irq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= ATH79_CPU_IRQ(4),
+		.end	= ATH79_CPU_IRQ(4),
+	},
+};
+
+struct ag71xx_platform_data ath79_eth0_data = {
+	.reset_bit	= AR71XX_RESET_GE0_MAC,
+};
+
+struct platform_device ath79_eth0_device = {
+	.name		= "ag71xx",
+	.id		= 0,
+	.resource	= ath79_eth0_resources,
+	.num_resources	= ARRAY_SIZE(ath79_eth0_resources),
+	.dev = {
+		.platform_data = &ath79_eth0_data,
+	},
+};
+
+static struct resource ath79_eth1_resources[] = {
+	{
+		.name	= "mac_base",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR71XX_GE1_BASE,
+		.end	= AR71XX_GE1_BASE + 0x200 - 1,
+	}, {
+		.name	= "mac_irq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= ATH79_CPU_IRQ(5),
+		.end	= ATH79_CPU_IRQ(5),
+	},
+};
+
+struct ag71xx_platform_data ath79_eth1_data = {
+	.reset_bit	= AR71XX_RESET_GE1_MAC,
+};
+
+struct platform_device ath79_eth1_device = {
+	.name		= "ag71xx",
+	.id		= 1,
+	.resource	= ath79_eth1_resources,
+	.num_resources	= ARRAY_SIZE(ath79_eth1_resources),
+	.dev = {
+		.platform_data = &ath79_eth1_data,
+	},
+};
+
+struct ag71xx_switch_platform_data ath79_switch_data;
+
+#define AR71XX_PLL_VAL_1000	0x00110000
+#define AR71XX_PLL_VAL_100	0x00001099
+#define AR71XX_PLL_VAL_10	0x00991099
+
+#define AR724X_PLL_VAL_1000	0x00110000
+#define AR724X_PLL_VAL_100	0x00001099
+#define AR724X_PLL_VAL_10	0x00991099
+
+#define AR7242_PLL_VAL_1000	0x16000000
+#define AR7242_PLL_VAL_100	0x00000101
+#define AR7242_PLL_VAL_10	0x00001616
+
+#define AR913X_PLL_VAL_1000	0x1a000000
+#define AR913X_PLL_VAL_100	0x13000a44
+#define AR913X_PLL_VAL_10	0x00441099
+
+#define AR933X_PLL_VAL_1000	0x00110000
+#define AR933X_PLL_VAL_100	0x00001099
+#define AR933X_PLL_VAL_10	0x00991099
+
+#define AR934X_PLL_VAL_1000	0x16000000
+#define AR934X_PLL_VAL_100	0x00000101
+#define AR934X_PLL_VAL_10	0x00001616
+
+#define QCA956X_PLL_VAL_1000	0x03000000
+#define QCA956X_PLL_VAL_100	0x00000101
+#define QCA956X_PLL_VAL_10	0x00001919
+
+static void __init ath79_init_eth_pll_data(unsigned int id)
+{
+	struct ath79_eth_pll_data *pll_data;
+	u32 pll_10, pll_100, pll_1000;
+
+	switch (id) {
+	case 0:
+		pll_data = &ath79_eth0_pll_data;
+		break;
+	case 1:
+		pll_data = &ath79_eth1_pll_data;
+		break;
+	default:
+		BUG();
+	}
+
+	switch (ath79_soc) {
+	case ATH79_SOC_AR7130:
+	case ATH79_SOC_AR7141:
+	case ATH79_SOC_AR7161:
+		pll_10 = AR71XX_PLL_VAL_10;
+		pll_100 = AR71XX_PLL_VAL_100;
+		pll_1000 = AR71XX_PLL_VAL_1000;
+		break;
+
+	case ATH79_SOC_AR7240:
+	case ATH79_SOC_AR7241:
+		pll_10 = AR724X_PLL_VAL_10;
+		pll_100 = AR724X_PLL_VAL_100;
+		pll_1000 = AR724X_PLL_VAL_1000;
+		break;
+
+	case ATH79_SOC_AR7242:
+		pll_10 = AR7242_PLL_VAL_10;
+		pll_100 = AR7242_PLL_VAL_100;
+		pll_1000 = AR7242_PLL_VAL_1000;
+		break;
+
+	case ATH79_SOC_AR9130:
+	case ATH79_SOC_AR9132:
+		pll_10 = AR913X_PLL_VAL_10;
+		pll_100 = AR913X_PLL_VAL_100;
+		pll_1000 = AR913X_PLL_VAL_1000;
+		break;
+
+	case ATH79_SOC_AR9330:
+	case ATH79_SOC_AR9331:
+		pll_10 = AR933X_PLL_VAL_10;
+		pll_100 = AR933X_PLL_VAL_100;
+		pll_1000 = AR933X_PLL_VAL_1000;
+		break;
+
+	case ATH79_SOC_AR9341:
+	case ATH79_SOC_AR9342:
+	case ATH79_SOC_AR9344:
+	case ATH79_SOC_QCA9533:
+	case ATH79_SOC_QCA9556:
+	case ATH79_SOC_QCA9558:
+	case ATH79_SOC_TP9343:
+		pll_10 = AR934X_PLL_VAL_10;
+		pll_100 = AR934X_PLL_VAL_100;
+		pll_1000 = AR934X_PLL_VAL_1000;
+		break;
+
+	case ATH79_SOC_QCA956X:
+		pll_10 = QCA956X_PLL_VAL_10;
+		pll_100 = QCA956X_PLL_VAL_100;
+		pll_1000 = QCA956X_PLL_VAL_1000;
+		break;
+
+	default:
+		BUG();
+	}
+
+	if (!pll_data->pll_10)
+		pll_data->pll_10 = pll_10;
+
+	if (!pll_data->pll_100)
+		pll_data->pll_100 = pll_100;
+
+	if (!pll_data->pll_1000)
+		pll_data->pll_1000 = pll_1000;
+}
+
+static int __init ath79_setup_phy_if_mode(unsigned int id,
+					   struct ag71xx_platform_data *pdata)
+{
+	unsigned int mii_if;
+
+	switch (id) {
+	case 0:
+		switch (ath79_soc) {
+		case ATH79_SOC_AR7130:
+		case ATH79_SOC_AR7141:
+		case ATH79_SOC_AR7161:
+		case ATH79_SOC_AR9130:
+		case ATH79_SOC_AR9132:
+			switch (pdata->phy_if_mode) {
+			case PHY_INTERFACE_MODE_MII:
+				mii_if = AR71XX_MII0_CTRL_IF_MII;
+				break;
+			case PHY_INTERFACE_MODE_GMII:
+				mii_if = AR71XX_MII0_CTRL_IF_GMII;
+				break;
+			case PHY_INTERFACE_MODE_RGMII:
+				mii_if = AR71XX_MII0_CTRL_IF_RGMII;
+				break;
+			case PHY_INTERFACE_MODE_RMII:
+				mii_if = AR71XX_MII0_CTRL_IF_RMII;
+				break;
+			default:
+				return -EINVAL;
+			}
+			ath79_mii_ctrl_set_if(AR71XX_MII_REG_MII0_CTRL, mii_if);
+			break;
+
+		case ATH79_SOC_AR7240:
+		case ATH79_SOC_AR7241:
+		case ATH79_SOC_AR9330:
+		case ATH79_SOC_AR9331:
+		case ATH79_SOC_QCA9533:
+		case ATH79_SOC_TP9343:
+			pdata->phy_if_mode = PHY_INTERFACE_MODE_MII;
+			break;
+
+		case ATH79_SOC_AR7242:
+			/* FIXME */
+
+		case ATH79_SOC_AR9341:
+		case ATH79_SOC_AR9342:
+		case ATH79_SOC_AR9344:
+			switch (pdata->phy_if_mode) {
+			case PHY_INTERFACE_MODE_MII:
+			case PHY_INTERFACE_MODE_GMII:
+			case PHY_INTERFACE_MODE_RGMII:
+			case PHY_INTERFACE_MODE_RMII:
+				break;
+			default:
+				return -EINVAL;
+			}
+			break;
+
+		case ATH79_SOC_QCA9556:
+		case ATH79_SOC_QCA9558:
+		case ATH79_SOC_QCA956X:
+			switch (pdata->phy_if_mode) {
+			case PHY_INTERFACE_MODE_MII:
+			case PHY_INTERFACE_MODE_RGMII:
+			case PHY_INTERFACE_MODE_SGMII:
+				break;
+			default:
+				return -EINVAL;
+			}
+			break;
+
+		default:
+			BUG();
+		}
+		break;
+	case 1:
+		switch (ath79_soc) {
+		case ATH79_SOC_AR7130:
+		case ATH79_SOC_AR7141:
+		case ATH79_SOC_AR7161:
+		case ATH79_SOC_AR9130:
+		case ATH79_SOC_AR9132:
+			switch (pdata->phy_if_mode) {
+			case PHY_INTERFACE_MODE_RMII:
+				mii_if = AR71XX_MII1_CTRL_IF_RMII;
+				break;
+			case PHY_INTERFACE_MODE_RGMII:
+				mii_if = AR71XX_MII1_CTRL_IF_RGMII;
+				break;
+			default:
+				return -EINVAL;
+			}
+			ath79_mii_ctrl_set_if(AR71XX_MII_REG_MII1_CTRL, mii_if);
+			break;
+
+		case ATH79_SOC_AR7240:
+		case ATH79_SOC_AR7241:
+		case ATH79_SOC_AR9330:
+		case ATH79_SOC_AR9331:
+		case ATH79_SOC_QCA956X:
+		case ATH79_SOC_TP9343:
+			pdata->phy_if_mode = PHY_INTERFACE_MODE_GMII;
+			break;
+
+		case ATH79_SOC_AR7242:
+			/* FIXME */
+
+		case ATH79_SOC_AR9341:
+		case ATH79_SOC_AR9342:
+		case ATH79_SOC_AR9344:
+		case ATH79_SOC_QCA9533:
+			switch (pdata->phy_if_mode) {
+			case PHY_INTERFACE_MODE_MII:
+			case PHY_INTERFACE_MODE_GMII:
+				break;
+			default:
+				return -EINVAL;
+			}
+			break;
+
+		case ATH79_SOC_QCA9556:
+		case ATH79_SOC_QCA9558:
+			switch (pdata->phy_if_mode) {
+			case PHY_INTERFACE_MODE_MII:
+			case PHY_INTERFACE_MODE_RGMII:
+			case PHY_INTERFACE_MODE_SGMII:
+				break;
+			default:
+				return -EINVAL;
+			}
+			break;
+
+		default:
+			BUG();
+		}
+		break;
+	}
+
+	return 0;
+}
+
+void __init ath79_setup_ar933x_phy4_switch(bool mac, bool mdio)
+{
+	void __iomem *base;
+	u32 t;
+
+	base = ioremap(AR933X_GMAC_BASE, AR933X_GMAC_SIZE);
+
+	t = __raw_readl(base + AR933X_GMAC_REG_ETH_CFG);
+	t &= ~(AR933X_ETH_CFG_SW_PHY_SWAP | AR933X_ETH_CFG_SW_PHY_ADDR_SWAP);
+	if (mac)
+		t |= AR933X_ETH_CFG_SW_PHY_SWAP;
+	if (mdio)
+		t |= AR933X_ETH_CFG_SW_PHY_ADDR_SWAP;
+	__raw_writel(t, base + AR933X_GMAC_REG_ETH_CFG);
+
+	iounmap(base);
+}
+
+void __init ath79_setup_ar934x_eth_cfg(u32 mask)
+{
+	void __iomem *base;
+	u32 t;
+
+	base = ioremap(AR934X_GMAC_BASE, AR934X_GMAC_SIZE);
+
+	t = __raw_readl(base + AR934X_GMAC_REG_ETH_CFG);
+
+	t &= ~(AR934X_ETH_CFG_RGMII_GMAC0 |
+	       AR934X_ETH_CFG_MII_GMAC0 |
+	       AR934X_ETH_CFG_GMII_GMAC0 |
+	       AR934X_ETH_CFG_SW_ONLY_MODE |
+	       AR934X_ETH_CFG_SW_PHY_SWAP);
+
+	t |= mask;
+
+	__raw_writel(t, base + AR934X_GMAC_REG_ETH_CFG);
+	/* flush write */
+	__raw_readl(base + AR934X_GMAC_REG_ETH_CFG);
+
+	iounmap(base);
+}
+
+void __init ath79_setup_ar934x_eth_rx_delay(unsigned int rxd,
+					    unsigned int rxdv)
+{
+	void __iomem *base;
+	u32 t;
+
+	rxd &= AR934X_ETH_CFG_RXD_DELAY_MASK;
+	rxdv &= AR934X_ETH_CFG_RDV_DELAY_MASK;
+
+	base = ioremap(AR934X_GMAC_BASE, AR934X_GMAC_SIZE);
+
+	t = __raw_readl(base + AR934X_GMAC_REG_ETH_CFG);
+
+	t &= ~(AR934X_ETH_CFG_RXD_DELAY_MASK << AR934X_ETH_CFG_RXD_DELAY_SHIFT |
+	       AR934X_ETH_CFG_RDV_DELAY_MASK << AR934X_ETH_CFG_RDV_DELAY_SHIFT);
+
+	t |= (rxd << AR934X_ETH_CFG_RXD_DELAY_SHIFT |
+	      rxdv << AR934X_ETH_CFG_RDV_DELAY_SHIFT);
+
+	__raw_writel(t, base + AR934X_GMAC_REG_ETH_CFG);
+	/* flush write */
+	__raw_readl(base + AR934X_GMAC_REG_ETH_CFG);
+
+	iounmap(base);
+}
+
+void __init ath79_setup_qca955x_eth_cfg(u32 mask)
+{
+	void __iomem *base;
+	u32 t;
+
+	base = ioremap(QCA955X_GMAC_BASE, QCA955X_GMAC_SIZE);
+
+	t = __raw_readl(base + QCA955X_GMAC_REG_ETH_CFG);
+
+	t &= ~(QCA955X_ETH_CFG_RGMII_EN | QCA955X_ETH_CFG_GE0_SGMII);
+
+	t |= mask;
+
+	__raw_writel(t, base + QCA955X_GMAC_REG_ETH_CFG);
+
+	iounmap(base);
+}
+
+static int ath79_eth_instance __initdata;
+void __init ath79_register_eth(unsigned int id)
+{
+	struct platform_device *pdev;
+	struct ag71xx_platform_data *pdata;
+	int err;
+
+	if (id > 1) {
+		printk(KERN_ERR "ar71xx: invalid ethernet id %d\n", id);
+		return;
+	}
+
+	ath79_init_eth_pll_data(id);
+
+	if (id == 0)
+		pdev = &ath79_eth0_device;
+	else
+		pdev = &ath79_eth1_device;
+
+	pdata = pdev->dev.platform_data;
+
+	pdata->max_frame_len = 1540;
+	pdata->desc_pktlen_mask = 0xfff;
+
+	err = ath79_setup_phy_if_mode(id, pdata);
+	if (err) {
+		printk(KERN_ERR
+		       "ar71xx: invalid PHY interface mode for GE%u\n", id);
+		return;
+	}
+
+	switch (ath79_soc) {
+	case ATH79_SOC_AR7130:
+		if (id == 0) {
+			pdata->ddr_flush = ath79_ddr_flush_ge0;
+			pdata->set_speed = ath79_set_speed_ge0;
+		} else {
+			pdata->ddr_flush = ath79_ddr_flush_ge1;
+			pdata->set_speed = ath79_set_speed_ge1;
+		}
+		break;
+
+	case ATH79_SOC_AR7141:
+	case ATH79_SOC_AR7161:
+		if (id == 0) {
+			pdata->ddr_flush = ath79_ddr_flush_ge0;
+			pdata->set_speed = ath79_set_speed_ge0;
+		} else {
+			pdata->ddr_flush = ath79_ddr_flush_ge1;
+			pdata->set_speed = ath79_set_speed_ge1;
+		}
+		pdata->has_gbit = 1;
+		break;
+
+	case ATH79_SOC_AR7242:
+		if (id == 0) {
+			pdata->reset_bit |= AR724X_RESET_GE0_MDIO |
+					    AR71XX_RESET_GE0_PHY;
+			pdata->ddr_flush = ar724x_ddr_flush_ge0;
+			pdata->set_speed = ar7242_set_speed_ge0;
+		} else {
+			pdata->reset_bit |= AR724X_RESET_GE1_MDIO |
+					    AR71XX_RESET_GE1_PHY;
+			pdata->ddr_flush = ar724x_ddr_flush_ge1;
+			pdata->set_speed = ath79_set_speed_dummy;
+		}
+		pdata->has_gbit = 1;
+		pdata->is_ar724x = 1;
+
+		if (!pdata->fifo_cfg1)
+			pdata->fifo_cfg1 = 0x0010ffff;
+		if (!pdata->fifo_cfg2)
+			pdata->fifo_cfg2 = 0x015500aa;
+		if (!pdata->fifo_cfg3)
+			pdata->fifo_cfg3 = 0x01f00140;
+		break;
+
+	case ATH79_SOC_AR7241:
+		if (id == 0)
+			pdata->reset_bit |= AR724X_RESET_GE0_MDIO;
+		else
+			pdata->reset_bit |= AR724X_RESET_GE1_MDIO;
+		/* fall through */
+	case ATH79_SOC_AR7240:
+		if (id == 0) {
+			pdata->reset_bit |= AR71XX_RESET_GE0_PHY;
+			pdata->ddr_flush = ar724x_ddr_flush_ge0;
+			pdata->set_speed = ath79_set_speed_dummy;
+
+			pdata->phy_mask = BIT(4);
+		} else {
+			pdata->reset_bit |= AR71XX_RESET_GE1_PHY;
+			pdata->ddr_flush = ar724x_ddr_flush_ge1;
+			pdata->set_speed = ath79_set_speed_dummy;
+
+			pdata->speed = SPEED_1000;
+			pdata->duplex = DUPLEX_FULL;
+			pdata->switch_data = &ath79_switch_data;
+
+			ath79_switch_data.phy_poll_mask |= BIT(4);
+		}
+		pdata->has_gbit = 1;
+		pdata->is_ar724x = 1;
+		if (ath79_soc == ATH79_SOC_AR7240)
+			pdata->is_ar7240 = 1;
+
+		if (!pdata->fifo_cfg1)
+			pdata->fifo_cfg1 = 0x0010ffff;
+		if (!pdata->fifo_cfg2)
+			pdata->fifo_cfg2 = 0x015500aa;
+		if (!pdata->fifo_cfg3)
+			pdata->fifo_cfg3 = 0x01f00140;
+		break;
+
+	case ATH79_SOC_AR9130:
+		if (id == 0) {
+			pdata->ddr_flush = ar91xx_ddr_flush_ge0;
+			pdata->set_speed = ar91xx_set_speed_ge0;
+		} else {
+			pdata->ddr_flush = ar91xx_ddr_flush_ge1;
+			pdata->set_speed = ar91xx_set_speed_ge1;
+		}
+		pdata->is_ar91xx = 1;
+		break;
+
+	case ATH79_SOC_AR9132:
+		if (id == 0) {
+			pdata->ddr_flush = ar91xx_ddr_flush_ge0;
+			pdata->set_speed = ar91xx_set_speed_ge0;
+		} else {
+			pdata->ddr_flush = ar91xx_ddr_flush_ge1;
+			pdata->set_speed = ar91xx_set_speed_ge1;
+		}
+		pdata->is_ar91xx = 1;
+		pdata->has_gbit = 1;
+		break;
+
+	case ATH79_SOC_AR9330:
+	case ATH79_SOC_AR9331:
+		if (id == 0) {
+			pdata->reset_bit = AR933X_RESET_GE0_MAC |
+					   AR933X_RESET_GE0_MDIO;
+			pdata->ddr_flush = ar933x_ddr_flush_ge0;
+			pdata->set_speed = ath79_set_speed_dummy;
+
+			pdata->phy_mask = BIT(4);
+		} else {
+			pdata->reset_bit = AR933X_RESET_GE1_MAC |
+					   AR933X_RESET_GE1_MDIO;
+			pdata->ddr_flush = ar933x_ddr_flush_ge1;
+			pdata->set_speed = ath79_set_speed_dummy;
+
+			pdata->speed = SPEED_1000;
+			pdata->has_gbit = 1;
+			pdata->duplex = DUPLEX_FULL;
+			pdata->switch_data = &ath79_switch_data;
+
+			ath79_switch_data.phy_poll_mask |= BIT(4);
+		}
+
+		pdata->is_ar724x = 1;
+
+		if (!pdata->fifo_cfg1)
+			pdata->fifo_cfg1 = 0x0010ffff;
+		if (!pdata->fifo_cfg2)
+			pdata->fifo_cfg2 = 0x015500aa;
+		if (!pdata->fifo_cfg3)
+			pdata->fifo_cfg3 = 0x01f00140;
+		break;
+
+	case ATH79_SOC_AR9341:
+	case ATH79_SOC_AR9342:
+	case ATH79_SOC_AR9344:
+	case ATH79_SOC_QCA9533:
+		if (id == 0) {
+			pdata->reset_bit = AR934X_RESET_GE0_MAC |
+					   AR934X_RESET_GE0_MDIO;
+			pdata->set_speed = ar934x_set_speed_ge0;
+		} else {
+			pdata->reset_bit = AR934X_RESET_GE1_MAC |
+					   AR934X_RESET_GE1_MDIO;
+			pdata->set_speed = ath79_set_speed_dummy;
+
+			pdata->switch_data = &ath79_switch_data;
+
+			/* reset the built-in switch */
+			ath79_device_reset_set(AR934X_RESET_ETH_SWITCH);
+			ath79_device_reset_clear(AR934X_RESET_ETH_SWITCH);
+		}
+
+		pdata->ddr_flush = ath79_ddr_no_flush;
+		pdata->has_gbit = 1;
+		pdata->is_ar724x = 1;
+
+		pdata->max_frame_len = SZ_16K - 1;
+		pdata->desc_pktlen_mask = SZ_16K - 1;
+
+		if (!pdata->fifo_cfg1)
+			pdata->fifo_cfg1 = 0x0010ffff;
+		if (!pdata->fifo_cfg2)
+			pdata->fifo_cfg2 = 0x015500aa;
+		if (!pdata->fifo_cfg3)
+			pdata->fifo_cfg3 = 0x01f00140;
+		break;
+
+	case ATH79_SOC_TP9343:
+		if (id == 0) {
+			pdata->reset_bit = AR933X_RESET_GE0_MAC |
+					   AR933X_RESET_GE0_MDIO;
+			pdata->set_speed = ath79_set_speed_dummy;
+
+			if (!pdata->phy_mask)
+				pdata->phy_mask = BIT(4);
+		} else {
+			pdata->reset_bit = AR933X_RESET_GE1_MAC |
+					   AR933X_RESET_GE1_MDIO;
+			pdata->set_speed = ath79_set_speed_dummy;
+
+			pdata->speed = SPEED_1000;
+			pdata->duplex = DUPLEX_FULL;
+			pdata->switch_data = &ath79_switch_data;
+
+			ath79_switch_data.phy_poll_mask |= BIT(4);
+		}
+
+		pdata->ddr_flush = ath79_ddr_no_flush;
+		pdata->has_gbit = 1;
+		pdata->is_ar724x = 1;
+
+		if (!pdata->fifo_cfg1)
+			pdata->fifo_cfg1 = 0x0010ffff;
+		if (!pdata->fifo_cfg2)
+			pdata->fifo_cfg2 = 0x015500aa;
+		if (!pdata->fifo_cfg3)
+			pdata->fifo_cfg3 = 0x01f00140;
+		break;
+
+	case ATH79_SOC_QCA9556:
+	case ATH79_SOC_QCA9558:
+		if (id == 0) {
+			pdata->reset_bit = QCA955X_RESET_GE0_MAC |
+					   QCA955X_RESET_GE0_MDIO;
+			pdata->set_speed = qca955x_set_speed_xmii;
+		} else {
+			pdata->reset_bit = QCA955X_RESET_GE1_MAC |
+					   QCA955X_RESET_GE1_MDIO;
+			pdata->set_speed = qca955x_set_speed_sgmii;
+		}
+
+		pdata->ddr_flush = ath79_ddr_no_flush;
+		pdata->has_gbit = 1;
+		pdata->is_ar724x = 1;
+
+		/*
+		 * Limit the maximum frame length to 4095 bytes.
+		 * Although the documentation says that the hardware
+		 * limit is 16383 bytes but that does not work in
+		 * practice. It seems that the hardware only updates
+		 * the lowest 12 bits of the packet length field
+		 * in the RX descriptor.
+		 */
+		pdata->max_frame_len = SZ_4K - 1;
+		pdata->desc_pktlen_mask = SZ_16K - 1;
+
+		if (!pdata->fifo_cfg1)
+			pdata->fifo_cfg1 = 0x0010ffff;
+		if (!pdata->fifo_cfg2)
+			pdata->fifo_cfg2 = 0x015500aa;
+		if (!pdata->fifo_cfg3)
+			pdata->fifo_cfg3 = 0x01f00140;
+		break;
+
+	case ATH79_SOC_QCA956X:
+		if (id == 0) {
+			pdata->reset_bit = QCA955X_RESET_GE0_MAC |
+					   QCA955X_RESET_GE0_MDIO;
+
+			if (pdata->phy_if_mode == PHY_INTERFACE_MODE_SGMII)
+				pdata->set_speed = qca956x_set_speed_sgmii;
+			else
+				pdata->set_speed = ath79_set_speed_ge0;
+		} else {
+			pdata->reset_bit = QCA955X_RESET_GE1_MAC |
+					   QCA955X_RESET_GE1_MDIO;
+
+			pdata->set_speed = ath79_set_speed_dummy;
+
+			pdata->switch_data = &ath79_switch_data;
+
+			pdata->speed = SPEED_1000;
+			pdata->duplex = DUPLEX_FULL;
+
+			/* reset the built-in switch */
+			ath79_device_reset_set(AR934X_RESET_ETH_SWITCH);
+			ath79_device_reset_clear(AR934X_RESET_ETH_SWITCH);
+		}
+
+		pdata->ddr_flush = ath79_ddr_no_flush;
+		pdata->has_gbit = 1;
+		pdata->is_ar724x = 1;
+
+		if (!pdata->fifo_cfg1)
+			pdata->fifo_cfg1 = 0x0010ffff;
+		if (!pdata->fifo_cfg2)
+			pdata->fifo_cfg2 = 0x015500aa;
+		if (!pdata->fifo_cfg3)
+			pdata->fifo_cfg3 = 0x01f00140;
+		break;
+
+	default:
+		BUG();
+	}
+
+	switch (pdata->phy_if_mode) {
+	case PHY_INTERFACE_MODE_GMII:
+	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_SGMII:
+		if (!pdata->has_gbit) {
+			printk(KERN_ERR "ar71xx: no gbit available on eth%d\n",
+					id);
+			return;
+		}
+		/* fallthrough */
+	default:
+		break;
+	}
+
+	if (!is_valid_ether_addr(pdata->mac_addr)) {
+		random_ether_addr(pdata->mac_addr);
+		printk(KERN_DEBUG
+			"ar71xx: using random MAC address for eth%d\n",
+			ath79_eth_instance);
+	}
+
+	if (pdata->mii_bus_dev == NULL) {
+		switch (ath79_soc) {
+		case ATH79_SOC_AR9341:
+		case ATH79_SOC_AR9342:
+		case ATH79_SOC_AR9344:
+			if (id == 0)
+				pdata->mii_bus_dev = &ath79_mdio0_device.dev;
+			else
+				pdata->mii_bus_dev = &ath79_mdio1_device.dev;
+			break;
+
+		case ATH79_SOC_AR7241:
+		case ATH79_SOC_AR9330:
+		case ATH79_SOC_AR9331:
+		case ATH79_SOC_QCA9533:
+		case ATH79_SOC_TP9343:
+			pdata->mii_bus_dev = &ath79_mdio1_device.dev;
+			break;
+
+		case ATH79_SOC_QCA9556:
+		case ATH79_SOC_QCA9558:
+			/* don't assign any MDIO device by default */
+			break;
+
+		case ATH79_SOC_QCA956X:
+			if (pdata->phy_if_mode != PHY_INTERFACE_MODE_SGMII)
+				pdata->mii_bus_dev = &ath79_mdio1_device.dev;
+			break;
+
+		default:
+			pdata->mii_bus_dev = &ath79_mdio0_device.dev;
+			break;
+		}
+	}
+
+	/* Reset the device */
+	ath79_device_reset_set(pdata->reset_bit);
+	msleep(100);
+
+	ath79_device_reset_clear(pdata->reset_bit);
+	msleep(100);
+
+	platform_device_register(pdev);
+	ath79_eth_instance++;
+}
+
+void __init ath79_set_mac_base(unsigned char *mac)
+{
+	memcpy(ath79_mac_base, mac, ETH_ALEN);
+}
+
+void __init ath79_parse_ascii_mac(char *mac_str, u8 *mac)
+{
+	int t;
+
+	t = sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
+		   &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5]);
+
+	if (t != ETH_ALEN)
+		t = sscanf(mac_str, "%02hhx.%02hhx.%02hhx.%02hhx.%02hhx.%02hhx",
+			&mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5]);
+
+	if (t != ETH_ALEN || !is_valid_ether_addr(mac)) {
+		memset(mac, 0, ETH_ALEN);
+		printk(KERN_DEBUG "ar71xx: invalid mac address \"%s\"\n",
+		       mac_str);
+	}
+}
+
+static void __init ath79_set_mac_base_ascii(char *str)
+{
+	u8 mac[ETH_ALEN];
+
+	ath79_parse_ascii_mac(str, mac);
+	ath79_set_mac_base(mac);
+}
+
+static int __init ath79_ethaddr_setup(char *str)
+{
+	ath79_set_mac_base_ascii(str);
+	return 1;
+}
+__setup("ethaddr=", ath79_ethaddr_setup);
+
+static int __init ath79_kmac_setup(char *str)
+{
+	ath79_set_mac_base_ascii(str);
+	return 1;
+}
+__setup("kmac=", ath79_kmac_setup);
+
+void __init ath79_init_mac(unsigned char *dst, const unsigned char *src,
+			    int offset)
+{
+	int t;
+
+	if (!dst)
+		return;
+
+	if (!src || !is_valid_ether_addr(src)) {
+		memset(dst, '\0', ETH_ALEN);
+		return;
+	}
+
+	t = (((u32) src[3]) << 16) + (((u32) src[4]) << 8) + ((u32) src[5]);
+	t += offset;
+
+	dst[0] = src[0];
+	dst[1] = src[1];
+	dst[2] = src[2];
+	dst[3] = (t >> 16) & 0xff;
+	dst[4] = (t >> 8) & 0xff;
+	dst[5] = t & 0xff;
+}
+
+void __init ath79_init_local_mac(unsigned char *dst, const unsigned char *src)
+{
+	int i;
+
+	if (!dst)
+		return;
+
+	if (!src || !is_valid_ether_addr(src)) {
+		memset(dst, '\0', ETH_ALEN);
+		return;
+	}
+
+	for (i = 0; i < ETH_ALEN; i++)
+		dst[i] = src[i];
+	dst[0] |= 0x02;
+}
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c b/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
index b43c80a376..17dd3ac6b1 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
@@ -407,48 +407,14 @@ static void ath79_set_speed_dummy(int speed)
 {
 }
 
-static void ath79_ddr_no_flush(void)
-{
-}
-
 static void ath79_ddr_flush_ge0(void)
 {
-	ath79_ddr_wb_flush(AR71XX_DDR_REG_FLUSH_GE0);
+	ath79_ddr_wb_flush(0);
 }
 
 static void ath79_ddr_flush_ge1(void)
 {
-	ath79_ddr_wb_flush(AR71XX_DDR_REG_FLUSH_GE1);
-}
-
-static void ar724x_ddr_flush_ge0(void)
-{
-	ath79_ddr_wb_flush(AR724X_DDR_REG_FLUSH_GE0);
-}
-
-static void ar724x_ddr_flush_ge1(void)
-{
-	ath79_ddr_wb_flush(AR724X_DDR_REG_FLUSH_GE1);
-}
-
-static void ar91xx_ddr_flush_ge0(void)
-{
-	ath79_ddr_wb_flush(AR913X_DDR_REG_FLUSH_GE0);
-}
-
-static void ar91xx_ddr_flush_ge1(void)
-{
-	ath79_ddr_wb_flush(AR913X_DDR_REG_FLUSH_GE1);
-}
-
-static void ar933x_ddr_flush_ge0(void)
-{
-	ath79_ddr_wb_flush(AR933X_DDR_REG_FLUSH_GE0);
-}
-
-static void ar933x_ddr_flush_ge1(void)
-{
-	ath79_ddr_wb_flush(AR933X_DDR_REG_FLUSH_GE1);
+	ath79_ddr_wb_flush(1);
 }
 
 static struct resource ath79_eth0_resources[] = {
@@ -879,26 +845,25 @@ void __init ath79_register_eth(unsigned int id)
 		return;
 	}
 
+	if (id == 0)
+		pdata->ddr_flush = ath79_ddr_flush_ge0;
+	else
+		pdata->ddr_flush = ath79_ddr_flush_ge1;
+
 	switch (ath79_soc) {
 	case ATH79_SOC_AR7130:
-		if (id == 0) {
-			pdata->ddr_flush = ath79_ddr_flush_ge0;
+		if (id == 0)
 			pdata->set_speed = ath79_set_speed_ge0;
-		} else {
-			pdata->ddr_flush = ath79_ddr_flush_ge1;
+		else
 			pdata->set_speed = ath79_set_speed_ge1;
-		}
 		break;
 
 	case ATH79_SOC_AR7141:
 	case ATH79_SOC_AR7161:
-		if (id == 0) {
-			pdata->ddr_flush = ath79_ddr_flush_ge0;
+		if (id == 0)
 			pdata->set_speed = ath79_set_speed_ge0;
-		} else {
-			pdata->ddr_flush = ath79_ddr_flush_ge1;
+		else
 			pdata->set_speed = ath79_set_speed_ge1;
-		}
 		pdata->has_gbit = 1;
 		break;
 
@@ -906,12 +871,10 @@ void __init ath79_register_eth(unsigned int id)
 		if (id == 0) {
 			pdata->reset_bit |= AR724X_RESET_GE0_MDIO |
 					    AR71XX_RESET_GE0_PHY;
-			pdata->ddr_flush = ar724x_ddr_flush_ge0;
 			pdata->set_speed = ar7242_set_speed_ge0;
 		} else {
 			pdata->reset_bit |= AR724X_RESET_GE1_MDIO |
 					    AR71XX_RESET_GE1_PHY;
-			pdata->ddr_flush = ar724x_ddr_flush_ge1;
 			pdata->set_speed = ath79_set_speed_dummy;
 		}
 		pdata->has_gbit = 1;
@@ -934,13 +897,11 @@ void __init ath79_register_eth(unsigned int id)
 	case ATH79_SOC_AR7240:
 		if (id == 0) {
 			pdata->reset_bit |= AR71XX_RESET_GE0_PHY;
-			pdata->ddr_flush = ar724x_ddr_flush_ge0;
 			pdata->set_speed = ath79_set_speed_dummy;
 
 			pdata->phy_mask = BIT(4);
 		} else {
 			pdata->reset_bit |= AR71XX_RESET_GE1_PHY;
-			pdata->ddr_flush = ar724x_ddr_flush_ge1;
 			pdata->set_speed = ath79_set_speed_dummy;
 
 			pdata->speed = SPEED_1000;
@@ -962,27 +923,15 @@ void __init ath79_register_eth(unsigned int id)
 			pdata->fifo_cfg3 = 0x01f00140;
 		break;
 
-	case ATH79_SOC_AR9130:
-		if (id == 0) {
-			pdata->ddr_flush = ar91xx_ddr_flush_ge0;
-			pdata->set_speed = ar91xx_set_speed_ge0;
-		} else {
-			pdata->ddr_flush = ar91xx_ddr_flush_ge1;
-			pdata->set_speed = ar91xx_set_speed_ge1;
-		}
-		pdata->is_ar91xx = 1;
-		break;
-
 	case ATH79_SOC_AR9132:
-		if (id == 0) {
-			pdata->ddr_flush = ar91xx_ddr_flush_ge0;
-			pdata->set_speed = ar91xx_set_speed_ge0;
-		} else {
-			pdata->ddr_flush = ar91xx_ddr_flush_ge1;
-			pdata->set_speed = ar91xx_set_speed_ge1;
-		}
-		pdata->is_ar91xx = 1;
 		pdata->has_gbit = 1;
+		/* fall through */
+	case ATH79_SOC_AR9130:
+		if (id == 0)
+			pdata->set_speed = ar91xx_set_speed_ge0;
+		else
+			pdata->set_speed = ar91xx_set_speed_ge1;
+		pdata->is_ar91xx = 1;
 		break;
 
 	case ATH79_SOC_AR9330:
@@ -990,14 +939,12 @@ void __init ath79_register_eth(unsigned int id)
 		if (id == 0) {
 			pdata->reset_bit = AR933X_RESET_GE0_MAC |
 					   AR933X_RESET_GE0_MDIO;
-			pdata->ddr_flush = ar933x_ddr_flush_ge0;
 			pdata->set_speed = ath79_set_speed_dummy;
 
 			pdata->phy_mask = BIT(4);
 		} else {
 			pdata->reset_bit = AR933X_RESET_GE1_MAC |
 					   AR933X_RESET_GE1_MDIO;
-			pdata->ddr_flush = ar933x_ddr_flush_ge1;
 			pdata->set_speed = ath79_set_speed_dummy;
 
 			pdata->speed = SPEED_1000;
@@ -1038,7 +985,6 @@ void __init ath79_register_eth(unsigned int id)
 			ath79_device_reset_clear(AR934X_RESET_ETH_SWITCH);
 		}
 
-		pdata->ddr_flush = ath79_ddr_no_flush;
 		pdata->has_gbit = 1;
 		pdata->is_ar724x = 1;
 
@@ -1073,7 +1019,6 @@ void __init ath79_register_eth(unsigned int id)
 			ath79_switch_data.phy_poll_mask |= BIT(4);
 		}
 
-		pdata->ddr_flush = ath79_ddr_no_flush;
 		pdata->has_gbit = 1;
 		pdata->is_ar724x = 1;
 
@@ -1097,7 +1042,6 @@ void __init ath79_register_eth(unsigned int id)
 			pdata->set_speed = qca955x_set_speed_sgmii;
 		}
 
-		pdata->ddr_flush = ath79_ddr_no_flush;
 		pdata->has_gbit = 1;
 		pdata->is_ar724x = 1;
 
@@ -1145,7 +1089,6 @@ void __init ath79_register_eth(unsigned int id)
 			ath79_device_reset_clear(AR934X_RESET_ETH_SWITCH);
 		}
 
-		pdata->ddr_flush = ath79_ddr_no_flush;
 		pdata->has_gbit = 1;
 		pdata->is_ar724x = 1;
 
diff --git a/target/linux/ar71xx/patches-4.4/101-MIPS-ath79-make-ath79_ddr_ctrl_init-compatible-for-n.patch b/target/linux/ar71xx/patches-4.4/101-MIPS-ath79-make-ath79_ddr_ctrl_init-compatible-for-n.patch
new file mode 100644
index 0000000000..09e6617b90
--- /dev/null
+++ b/target/linux/ar71xx/patches-4.4/101-MIPS-ath79-make-ath79_ddr_ctrl_init-compatible-for-n.patch
@@ -0,0 +1,31 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 14 May 2016 20:20:04 +0200
+Subject: [PATCH] MIPS: ath79: make ath79_ddr_ctrl_init() compatible for newer
+ SoCs
+
+AR913x, AR724x and AR933x are the only SoCs where the
+ath79_ddr_wb_flush_base starts at 0x7c, all newer SoCs use 0x9c
+Invert the logic to make the code compatible with AR95xx
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/arch/mips/ath79/common.c
++++ b/arch/mips/ath79/common.c
+@@ -46,12 +46,12 @@ void ath79_ddr_ctrl_init(void)
+ {
+ 	ath79_ddr_base = ioremap_nocache(AR71XX_DDR_CTRL_BASE,
+ 					 AR71XX_DDR_CTRL_SIZE);
+-	if (soc_is_ar71xx() || soc_is_ar934x()) {
+-		ath79_ddr_wb_flush_base = ath79_ddr_base + 0x9c;
+-		ath79_ddr_pci_win_base = ath79_ddr_base + 0x7c;
+-	} else {
++	if (soc_is_ar913x() || soc_is_ar724x() || soc_is_ar933x()) {
+ 		ath79_ddr_wb_flush_base = ath79_ddr_base + 0x7c;
+ 		ath79_ddr_pci_win_base = 0;
++	} else {
++		ath79_ddr_wb_flush_base = ath79_ddr_base + 0x9c;
++		ath79_ddr_pci_win_base = ath79_ddr_base + 0x7c;
+ 	}
+ }
+ EXPORT_SYMBOL_GPL(ath79_ddr_ctrl_init);
diff --git a/target/linux/ar71xx/patches-4.4/407-mtd-m25p80-allow-to-pass-probe-types-via-platform-data.patch b/target/linux/ar71xx/patches-4.4/407-mtd-m25p80-allow-to-pass-probe-types-via-platform-data.patch
index 6a9132032f..04acdb6d9e 100644
--- a/target/linux/ar71xx/patches-4.4/407-mtd-m25p80-allow-to-pass-probe-types-via-platform-data.patch
+++ b/target/linux/ar71xx/patches-4.4/407-mtd-m25p80-allow-to-pass-probe-types-via-platform-data.patch
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/devices/m25p80.c
 +++ b/drivers/mtd/devices/m25p80.c
-@@ -229,7 +229,9 @@ static int m25p_probe(struct spi_device
+@@ -251,7 +251,9 @@ static int m25p_probe(struct spi_device
  
  	ppdata.of_node = spi->dev.of_node;
  
diff --git a/target/linux/ar71xx/patches-4.4/412-mtd-m25p80-zero-partition-parser-data.patch b/target/linux/ar71xx/patches-4.4/412-mtd-m25p80-zero-partition-parser-data.patch
index 175acf630e..866920a249 100644
--- a/target/linux/ar71xx/patches-4.4/412-mtd-m25p80-zero-partition-parser-data.patch
+++ b/target/linux/ar71xx/patches-4.4/412-mtd-m25p80-zero-partition-parser-data.patch
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/devices/m25p80.c
 +++ b/drivers/mtd/devices/m25p80.c
-@@ -227,6 +227,7 @@ static int m25p_probe(struct spi_device
+@@ -249,6 +249,7 @@ static int m25p_probe(struct spi_device
  	if (ret)
  		return ret;
  
diff --git a/target/linux/ar71xx/patches-4.4/431-spi-add-various-flags.patch b/target/linux/ar71xx/patches-4.4/431-spi-add-various-flags.patch
index 5824a04284..bf5aff5c7e 100644
--- a/target/linux/ar71xx/patches-4.4/431-spi-add-various-flags.patch
+++ b/target/linux/ar71xx/patches-4.4/431-spi-add-various-flags.patch
@@ -1,6 +1,6 @@
 --- a/include/linux/spi/spi.h
 +++ b/include/linux/spi/spi.h
-@@ -690,6 +690,8 @@ struct spi_transfer {
+@@ -695,6 +695,8 @@ struct spi_transfer {
  	unsigned	cs_change:1;
  	unsigned	tx_nbits:3;
  	unsigned	rx_nbits:3;
@@ -9,7 +9,7 @@
  #define	SPI_NBITS_SINGLE	0x01 /* 1bit transfer */
  #define	SPI_NBITS_DUAL		0x02 /* 2bits transfer */
  #define	SPI_NBITS_QUAD		0x04 /* 4bits transfer */
-@@ -735,6 +737,7 @@ struct spi_message {
+@@ -740,6 +742,7 @@ struct spi_message {
  	struct spi_device	*spi;
  
  	unsigned		is_dma_mapped:1;
diff --git a/target/linux/ar71xx/patches-4.4/461-spi-add-type-field-to-spi_transfer.patch b/target/linux/ar71xx/patches-4.4/461-spi-add-type-field-to-spi_transfer.patch
index be6233c19c..6ccb632ecc 100644
--- a/target/linux/ar71xx/patches-4.4/461-spi-add-type-field-to-spi_transfer.patch
+++ b/target/linux/ar71xx/patches-4.4/461-spi-add-type-field-to-spi_transfer.patch
@@ -1,6 +1,6 @@
 --- a/include/linux/spi/spi.h
 +++ b/include/linux/spi/spi.h
-@@ -578,6 +578,12 @@ extern struct spi_master *spi_busnum_to_
+@@ -583,6 +583,12 @@ extern struct spi_master *spi_busnum_to_
  
  /*---------------------------------------------------------------------------*/
  
@@ -13,7 +13,7 @@
  /*
   * I/O INTERFACE between SPI controller and protocol drivers
   *
-@@ -698,6 +704,7 @@ struct spi_transfer {
+@@ -703,6 +709,7 @@ struct spi_transfer {
  	u8		bits_per_word;
  	u16		delay_usecs;
  	u32		speed_hz;
diff --git a/target/linux/ar71xx/patches-4.4/462-mtd-m25p80-set-spi-transfer-type.patch b/target/linux/ar71xx/patches-4.4/462-mtd-m25p80-set-spi-transfer-type.patch
index 11bf9ff71b..f949235966 100644
--- a/target/linux/ar71xx/patches-4.4/462-mtd-m25p80-set-spi-transfer-type.patch
+++ b/target/linux/ar71xx/patches-4.4/462-mtd-m25p80-set-spi-transfer-type.patch
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/devices/m25p80.c
 +++ b/drivers/mtd/devices/m25p80.c
-@@ -137,10 +137,12 @@ static int m25p80_read(struct spi_nor *n
+@@ -159,10 +159,12 @@ static int m25p80_read(struct spi_nor *n
  	flash->command[0] = nor->read_opcode;
  	m25p_addr2cmd(nor, from, flash->command);
  
diff --git a/target/linux/ar71xx/patches-4.4/464-spi-ath79-fix-fast-flash-read.patch b/target/linux/ar71xx/patches-4.4/464-spi-ath79-fix-fast-flash-read.patch
index f8ae4e00bb..03483e82a6 100644
--- a/target/linux/ar71xx/patches-4.4/464-spi-ath79-fix-fast-flash-read.patch
+++ b/target/linux/ar71xx/patches-4.4/464-spi-ath79-fix-fast-flash-read.patch
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/devices/m25p80.c
 +++ b/drivers/mtd/devices/m25p80.c
-@@ -137,6 +137,9 @@ static int m25p80_read(struct spi_nor *n
+@@ -159,6 +159,9 @@ static int m25p80_read(struct spi_nor *n
  	flash->command[0] = nor->read_opcode;
  	m25p_addr2cmd(nor, from, flash->command);
  
@@ -25,7 +25,7 @@
  	while (len--) {
 --- a/include/linux/spi/spi.h
 +++ b/include/linux/spi/spi.h
-@@ -705,6 +705,7 @@ struct spi_transfer {
+@@ -710,6 +710,7 @@ struct spi_transfer {
  	u16		delay_usecs;
  	u32		speed_hz;
  	enum spi_transfer_type type;
diff --git a/target/linux/ar71xx/patches-4.4/525-MIPS-ath79-enable-qca-usb-quirks.patch b/target/linux/ar71xx/patches-4.4/525-MIPS-ath79-enable-qca-usb-quirks.patch
index 0e33674adf..61b6b4ee16 100644
--- a/target/linux/ar71xx/patches-4.4/525-MIPS-ath79-enable-qca-usb-quirks.patch
+++ b/target/linux/ar71xx/patches-4.4/525-MIPS-ath79-enable-qca-usb-quirks.patch
@@ -29,7 +29,9 @@
 -	u32 bootstrap;
 +	void __iomem *phy_reg;
 +	u32 t;
-+
+ 
+-	bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
+-	if (bootstrap & AR934X_BOOTSTRAP_USB_MODE_DEVICE)
 +	phy_reg = ioremap(base, 4);
 +	if (!phy_reg)
 +		return;
@@ -41,9 +43,7 @@
 +
 +	iounmap(phy_reg);
 +}
- 
--	bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
--	if (bootstrap & AR934X_BOOTSTRAP_USB_MODE_DEVICE)
++
 +static void ar934x_usb_reset_notifier(struct platform_device *pdev)
 +{
 +	if (pdev->id != -1)
diff --git a/target/linux/ar71xx/patches-4.4/601-MIPS-ath79-add-more-register-defines.patch b/target/linux/ar71xx/patches-4.4/601-MIPS-ath79-add-more-register-defines.patch
index 0126f6a3b9..c5035778a2 100644
--- a/target/linux/ar71xx/patches-4.4/601-MIPS-ath79-add-more-register-defines.patch
+++ b/target/linux/ar71xx/patches-4.4/601-MIPS-ath79-add-more-register-defines.patch
@@ -155,7 +155,7 @@
 +#define AR934X_RESET_LUT		BIT(2)
 +#define AR934X_RESET_MBOX		BIT(1)
 +#define AR934X_RESET_I2S		BIT(0)
-+
+ 
 +#define QCA955X_RESET_HOST		BIT(31)
 +#define QCA955X_RESET_SLIC		BIT(30)
 +#define QCA955X_RESET_HDMA		BIT(29)
@@ -188,7 +188,7 @@
 +#define QCA955X_RESET_LUT		BIT(2)
 +#define QCA955X_RESET_MBOX		BIT(1)
 +#define QCA955X_RESET_I2S		BIT(0)
- 
++
 +#define AR933X_BOOTSTRAP_MDIO_GPIO_EN	BIT(18)
 +#define AR933X_BOOTSTRAP_EEPBUSY	BIT(4)
  #define AR933X_BOOTSTRAP_REF_CLK_40	BIT(0)
diff --git a/target/linux/ar71xx/patches-4.4/609-MIPS-ath79-ap136-fixes.patch b/target/linux/ar71xx/patches-4.4/609-MIPS-ath79-ap136-fixes.patch
index 4d7902e166..5d9d802eda 100644
--- a/target/linux/ar71xx/patches-4.4/609-MIPS-ath79-ap136-fixes.patch
+++ b/target/linux/ar71xx/patches-4.4/609-MIPS-ath79-ap136-fixes.patch
@@ -135,7 +135,8 @@
 +static void __init ap136_common_setup(void)
 +{
 +	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
-+
+ 
+-static int ap136_pci_plat_dev_init(struct pci_dev *dev)
 +	ath79_register_m25p80(NULL);
 +
 +	ath79_register_leds_gpio(-1, ARRAY_SIZE(ap136_leds_gpio),
@@ -150,8 +151,7 @@
 +	ath79_register_wmac(art + AP136_WMAC_CALDATA_OFFSET, NULL);
 +
 +	ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN);
- 
--static int ap136_pci_plat_dev_init(struct pci_dev *dev)
++
 +	ath79_register_mdio(0, 0x0);
 +	ath79_init_mac(ath79_eth0_data.mac_addr, art + AP136_MAC0_OFFSET, 0);
 +
@@ -211,16 +211,16 @@
 +	/* GMAC0 of the AR8327 switch is connected to GMAC1 via SGMII */
 +	ap136_ar8327_pad0_cfg.mode = AR8327_PAD_MAC_SGMII;
 +	ap136_ar8327_pad0_cfg.sgmii_delay_en = true;
-+
+ 
+-	ath79_pci_set_plat_dev_init(ap136_pci_plat_dev_init);
+-	ath79_register_pci();
 +	/* GMAC6 of the AR8327 switch is connected to GMAC0 via RGMII */
 +	ap136_ar8327_pad6_cfg.mode = AR8327_PAD_MAC_RGMII;
 +	ap136_ar8327_pad6_cfg.txclk_delay_en = true;
 +	ap136_ar8327_pad6_cfg.rxclk_delay_en = true;
 +	ap136_ar8327_pad6_cfg.txclk_delay_sel = AR8327_CLK_DELAY_SEL1;
 +	ap136_ar8327_pad6_cfg.rxclk_delay_sel = AR8327_CLK_DELAY_SEL2;
- 
--	ath79_pci_set_plat_dev_init(ap136_pci_plat_dev_init);
--	ath79_register_pci();
++
 +	ath79_eth0_pll_data.pll_1000 = 0x56000000;
 +	ath79_eth1_pll_data.pll_1000 = 0x03000101;
 +
diff --git a/target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch b/target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch
index 6fd6dafd47..08a684becd 100644
--- a/target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch
+++ b/target/linux/ar71xx/patches-4.4/620-MIPS-ath79-add-support-for-QCA953x-SoC.patch
@@ -335,10 +335,10 @@ meaning of the bits CPUCLK_FROM_CPUPLL and DDRCLK_FROM_DDRPLL is reversed.
 +	status = ath79_reset_rr(QCA953X_RESET_REG_PCIE_WMAC_INT_STATUS);
 +
 +	if (status & QCA953X_PCIE_WMAC_INT_PCIE_ALL) {
-+		ath79_ddr_wb_flush(QCA953X_DDR_REG_FLUSH_PCIE);
++		ath79_ddr_wb_flush(3);
 +		generic_handle_irq(ATH79_IP2_IRQ(0));
 +	} else if (status & QCA953X_PCIE_WMAC_INT_WMAC_ALL) {
-+		ath79_ddr_wb_flush(QCA953X_DDR_REG_FLUSH_WMAC);
++		ath79_ddr_wb_flush(4);
 +		generic_handle_irq(ATH79_IP2_IRQ(1));
 +	} else {
 +		spurious_interrupt();