ar71xx: fix DDR write buffer flushing issues with 4.4

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 1315 insertions, 0 deletions

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;
+}