19 files changed, 785 insertions, 87 deletions

diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig
index 47707410582..e0fae8f4442 100644
--- a/arch/mips/ath79/Kconfig
+++ b/arch/mips/ath79/Kconfig
@@ -2,13 +2,26 @@ if ATH79
 
 menu "Atheros AR71XX/AR724X/AR913X machine selection"
 
+config ATH79_MACH_AP121
+	bool "Atheros AP121 reference board"
+	select SOC_AR933X
+	select ATH79_DEV_GPIO_BUTTONS
+	select ATH79_DEV_LEDS_GPIO
+	select ATH79_DEV_SPI
+	select ATH79_DEV_USB
+	select ATH79_DEV_WMAC
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Atheros AP121 reference board.
+
 config ATH79_MACH_AP81
 	bool "Atheros AP81 reference board"
 	select SOC_AR913X
-	select ATH79_DEV_AR913X_WMAC
 	select ATH79_DEV_GPIO_BUTTONS
 	select ATH79_DEV_LEDS_GPIO
 	select ATH79_DEV_SPI
+	select ATH79_DEV_USB
+	select ATH79_DEV_WMAC
 	help
 	  Say 'Y' here if you want your kernel to support the
 	  Atheros AP81 reference board.
@@ -19,10 +32,21 @@ config ATH79_MACH_PB44
 	select ATH79_DEV_GPIO_BUTTONS
 	select ATH79_DEV_LEDS_GPIO
 	select ATH79_DEV_SPI
+	select ATH79_DEV_USB
 	help
 	  Say 'Y' here if you want your kernel to support the
 	  Atheros PB44 reference board.
 
+config ATH79_MACH_UBNT_XM
+	bool "Ubiquiti Networks XM (rev 1.0) board"
+	select SOC_AR724X
+	select ATH79_DEV_GPIO_BUTTONS
+	select ATH79_DEV_LEDS_GPIO
+	select ATH79_DEV_SPI
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Ubiquiti Networks XM (rev 1.0) board.
+
 endmenu
 
 config SOC_AR71XX
@@ -33,14 +57,15 @@ config SOC_AR71XX
 config SOC_AR724X
 	select USB_ARCH_HAS_EHCI
 	select USB_ARCH_HAS_OHCI
+	select HW_HAS_PCI
 	def_bool n
 
 config SOC_AR913X
 	select USB_ARCH_HAS_EHCI
 	def_bool n
 
-config ATH79_DEV_AR913X_WMAC
-	depends on SOC_AR913X
+config SOC_AR933X
+	select USB_ARCH_HAS_EHCI
 	def_bool n
 
 config ATH79_DEV_GPIO_BUTTONS
@@ -52,4 +77,11 @@ config ATH79_DEV_LEDS_GPIO
 config ATH79_DEV_SPI
 	def_bool n
 
+config ATH79_DEV_USB
+	def_bool n
+
+config ATH79_DEV_WMAC
+	depends on (SOC_AR913X || SOC_AR933X)
+	def_bool n
+
 endif
diff --git a/arch/mips/ath79/Makefile b/arch/mips/ath79/Makefile
index c33d4653007..3b911e09dbe 100644
--- a/arch/mips/ath79/Makefile
+++ b/arch/mips/ath79/Makefile
@@ -16,13 +16,16 @@ obj-$(CONFIG_EARLY_PRINTK)		+= early_printk.o
 # Devices
 #
 obj-y					+= dev-common.o
-obj-$(CONFIG_ATH79_DEV_AR913X_WMAC)	+= dev-ar913x-wmac.o
 obj-$(CONFIG_ATH79_DEV_GPIO_BUTTONS)	+= dev-gpio-buttons.o
 obj-$(CONFIG_ATH79_DEV_LEDS_GPIO)	+= dev-leds-gpio.o
 obj-$(CONFIG_ATH79_DEV_SPI)		+= dev-spi.o
+obj-$(CONFIG_ATH79_DEV_USB)		+= dev-usb.o
+obj-$(CONFIG_ATH79_DEV_WMAC)		+= dev-wmac.o
 
 #
 # Machines
 #
+obj-$(CONFIG_ATH79_MACH_AP121)		+= mach-ap121.o
 obj-$(CONFIG_ATH79_MACH_AP81)		+= mach-ap81.o
 obj-$(CONFIG_ATH79_MACH_PB44)		+= mach-pb44.o
+obj-$(CONFIG_ATH79_MACH_UBNT_XM)	+= mach-ubnt-xm.o
diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c
index 680bde99a26..54d0eb4db98 100644
--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -110,6 +110,59 @@ static void __init ar913x_clocks_init(void)
 	ath79_uart_clk.rate = ath79_ahb_clk.rate;
 }
 
+static void __init ar933x_clocks_init(void)
+{
+	u32 clock_ctrl;
+	u32 cpu_config;
+	u32 freq;
+	u32 t;
+
+	t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
+	if (t & AR933X_BOOTSTRAP_REF_CLK_40)
+		ath79_ref_clk.rate = (40 * 1000 * 1000);
+	else
+		ath79_ref_clk.rate = (25 * 1000 * 1000);
+
+	clock_ctrl = ath79_pll_rr(AR933X_PLL_CLOCK_CTRL_REG);
+	if (clock_ctrl & AR933X_PLL_CLOCK_CTRL_BYPASS) {
+		ath79_cpu_clk.rate = ath79_ref_clk.rate;
+		ath79_ahb_clk.rate = ath79_ref_clk.rate;
+		ath79_ddr_clk.rate = ath79_ref_clk.rate;
+	} else {
+		cpu_config = ath79_pll_rr(AR933X_PLL_CPU_CONFIG_REG);
+
+		t = (cpu_config >> AR933X_PLL_CPU_CONFIG_REFDIV_SHIFT) &
+		    AR933X_PLL_CPU_CONFIG_REFDIV_MASK;
+		freq = ath79_ref_clk.rate / t;
+
+		t = (cpu_config >> AR933X_PLL_CPU_CONFIG_NINT_SHIFT) &
+		    AR933X_PLL_CPU_CONFIG_NINT_MASK;
+		freq *= t;
+
+		t = (cpu_config >> AR933X_PLL_CPU_CONFIG_OUTDIV_SHIFT) &
+		    AR933X_PLL_CPU_CONFIG_OUTDIV_MASK;
+		if (t == 0)
+			t = 1;
+
+		freq >>= t;
+
+		t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_CPU_DIV_SHIFT) &
+		     AR933X_PLL_CLOCK_CTRL_CPU_DIV_MASK) + 1;
+		ath79_cpu_clk.rate = freq / t;
+
+		t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_DDR_DIV_SHIFT) &
+		      AR933X_PLL_CLOCK_CTRL_DDR_DIV_MASK) + 1;
+		ath79_ddr_clk.rate = freq / t;
+
+		t = ((clock_ctrl >> AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT) &
+		     AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK) + 1;
+		ath79_ahb_clk.rate = freq / t;
+	}
+
+	ath79_wdt_clk.rate = ath79_ref_clk.rate;
+	ath79_uart_clk.rate = ath79_ref_clk.rate;
+}
+
 void __init ath79_clocks_init(void)
 {
 	if (soc_is_ar71xx())
@@ -118,6 +171,8 @@ void __init ath79_clocks_init(void)
 		ar724x_clocks_init();
 	else if (soc_is_ar913x())
 		ar913x_clocks_init();
+	else if (soc_is_ar933x())
+		ar933x_clocks_init();
 	else
 		BUG();
 
diff --git a/arch/mips/ath79/common.c b/arch/mips/ath79/common.c
index 58f60e722a0..f0fda982b96 100644
--- a/arch/mips/ath79/common.c
+++ b/arch/mips/ath79/common.c
@@ -30,6 +30,7 @@ u32 ath79_ddr_freq;
 EXPORT_SYMBOL_GPL(ath79_ddr_freq);
 
 enum ath79_soc_type ath79_soc;
+unsigned int ath79_soc_rev;
 
 void __iomem *ath79_pll_base;
 void __iomem *ath79_reset_base;
@@ -64,6 +65,8 @@ void ath79_device_reset_set(u32 mask)
 		reg = AR724X_RESET_REG_RESET_MODULE;
 	else if (soc_is_ar913x())
 		reg = AR913X_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar933x())
+		reg = AR933X_RESET_REG_RESET_MODULE;
 	else
 		BUG();
 
@@ -86,6 +89,8 @@ void ath79_device_reset_clear(u32 mask)
 		reg = AR724X_RESET_REG_RESET_MODULE;
 	else if (soc_is_ar913x())
 		reg = AR913X_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar933x())
+		reg = AR933X_RESET_REG_RESET_MODULE;
 	else
 		BUG();
 
diff --git a/arch/mips/ath79/dev-ar913x-wmac.c b/arch/mips/ath79/dev-ar913x-wmac.c
deleted file mode 100644
index 48f425a5ba2..00000000000
--- a/arch/mips/ath79/dev-ar913x-wmac.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- *  Atheros AR913X SoC built-in WMAC device support
- *
- *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- *  Copyright (C) 2008 Imre Kaloz <kaloz@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/init.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/platform_device.h>
-#include <linux/ath9k_platform.h>
-
-#include <asm/mach-ath79/ath79.h>
-#include <asm/mach-ath79/ar71xx_regs.h>
-#include "dev-ar913x-wmac.h"
-
-static struct ath9k_platform_data ar913x_wmac_data;
-
-static struct resource ar913x_wmac_resources[] = {
-	{
-		.start	= AR913X_WMAC_BASE,
-		.end	= AR913X_WMAC_BASE + AR913X_WMAC_SIZE - 1,
-		.flags	= IORESOURCE_MEM,
-	}, {
-		.start	= ATH79_CPU_IRQ_IP2,
-		.end	= ATH79_CPU_IRQ_IP2,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device ar913x_wmac_device = {
-	.name		= "ath9k",
-	.id		= -1,
-	.resource	= ar913x_wmac_resources,
-	.num_resources	= ARRAY_SIZE(ar913x_wmac_resources),
-	.dev = {
-		.platform_data = &ar913x_wmac_data,
-	},
-};
-
-void __init ath79_register_ar913x_wmac(u8 *cal_data)
-{
-	if (cal_data)
-		memcpy(ar913x_wmac_data.eeprom_data, cal_data,
-		       sizeof(ar913x_wmac_data.eeprom_data));
-
-	/* reset the WMAC */
-	ath79_device_reset_set(AR913X_RESET_AMBA2WMAC);
-	mdelay(10);
-
-	ath79_device_reset_clear(AR913X_RESET_AMBA2WMAC);
-	mdelay(10);
-
-	platform_device_register(&ar913x_wmac_device);
-}
diff --git a/arch/mips/ath79/dev-common.c b/arch/mips/ath79/dev-common.c
index 3b82e325beb..f4956f80907 100644
--- a/arch/mips/ath79/dev-common.c
+++ b/arch/mips/ath79/dev-common.c
@@ -20,6 +20,7 @@
 
 #include <asm/mach-ath79/ath79.h>
 #include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ar933x_uart_platform.h>
 #include "common.h"
 #include "dev-common.h"
 
@@ -54,6 +55,30 @@ static struct platform_device ath79_uart_device = {
 	},
 };
 
+static struct resource ar933x_uart_resources[] = {
+	{
+		.start	= AR933X_UART_BASE,
+		.end	= AR933X_UART_BASE + AR71XX_UART_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= ATH79_MISC_IRQ_UART,
+		.end	= ATH79_MISC_IRQ_UART,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct ar933x_uart_platform_data ar933x_uart_data;
+static struct platform_device ar933x_uart_device = {
+	.name		= "ar933x-uart",
+	.id		= -1,
+	.resource	= ar933x_uart_resources,
+	.num_resources	= ARRAY_SIZE(ar933x_uart_resources),
+	.dev = {
+		.platform_data	= &ar933x_uart_data,
+	},
+};
+
 void __init ath79_register_uart(void)
 {
 	struct clk *clk;
@@ -62,8 +87,17 @@ void __init ath79_register_uart(void)
 	if (IS_ERR(clk))
 		panic("unable to get UART clock, err=%ld", PTR_ERR(clk));
 
-	ath79_uart_data[0].uartclk = clk_get_rate(clk);
-	platform_device_register(&ath79_uart_device);
+	if (soc_is_ar71xx() ||
+	    soc_is_ar724x() ||
+	    soc_is_ar913x()) {
+		ath79_uart_data[0].uartclk = clk_get_rate(clk);
+		platform_device_register(&ath79_uart_device);
+	} else if (soc_is_ar933x()) {
+		ar933x_uart_data.uartclk = clk_get_rate(clk);
+		platform_device_register(&ar933x_uart_device);
+	} else {
+		BUG();
+	}
 }
 
 static struct platform_device ath79_wdt_device = {
diff --git a/arch/mips/ath79/dev-usb.c b/arch/mips/ath79/dev-usb.c
new file mode 100644
index 00000000000..002d6d2afe0
--- /dev/null
+++ b/arch/mips/ath79/dev-usb.c
@@ -0,0 +1,197 @@
+/*
+ *  Atheros AR7XXX/AR9XXX USB Host Controller device
+ *
+ *  Copyright (C) 2008-2011 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
+ *
+ *  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/irq.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include "common.h"
+#include "dev-usb.h"
+
+static struct resource ath79_ohci_resources[] = {
+	[0] = {
+		/* .start and .end fields are filled dynamically */
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= ATH79_MISC_IRQ_OHCI,
+		.end	= ATH79_MISC_IRQ_OHCI,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 ath79_ohci_dmamask = DMA_BIT_MASK(32);
+static struct platform_device ath79_ohci_device = {
+	.name		= "ath79-ohci",
+	.id		= -1,
+	.resource	= ath79_ohci_resources,
+	.num_resources	= ARRAY_SIZE(ath79_ohci_resources),
+	.dev = {
+		.dma_mask		= &ath79_ohci_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+};
+
+static struct resource ath79_ehci_resources[] = {
+	[0] = {
+		/* .start and .end fields are filled dynamically */
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= ATH79_CPU_IRQ_USB,
+		.end	= ATH79_CPU_IRQ_USB,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 ath79_ehci_dmamask = DMA_BIT_MASK(32);
+static struct platform_device ath79_ehci_device = {
+	.name		= "ath79-ehci",
+	.id		= -1,
+	.resource	= ath79_ehci_resources,
+	.num_resources	= ARRAY_SIZE(ath79_ehci_resources),
+	.dev = {
+		.dma_mask		= &ath79_ehci_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+};
+
+#define AR71XX_USB_RESET_MASK	(AR71XX_RESET_USB_HOST | \
+				 AR71XX_RESET_USB_PHY | \
+				 AR71XX_RESET_USB_OHCI_DLL)
+
+static void __init ath79_usb_setup(void)
+{
+	void __iomem *usb_ctrl_base;
+
+	ath79_device_reset_set(AR71XX_USB_RESET_MASK);
+	mdelay(1000);
+	ath79_device_reset_clear(AR71XX_USB_RESET_MASK);
+
+	usb_ctrl_base = ioremap(AR71XX_USB_CTRL_BASE, AR71XX_USB_CTRL_SIZE);
+
+	/* Turning on the Buff and Desc swap bits */
+	__raw_writel(0xf0000, usb_ctrl_base + AR71XX_USB_CTRL_REG_CONFIG);
+
+	/* WAR for HW bug. Here it adjusts the duration between two SOFS */
+	__raw_writel(0x20c00, usb_ctrl_base + AR71XX_USB_CTRL_REG_FLADJ);
+
+	iounmap(usb_ctrl_base);
+
+	mdelay(900);
+
+	ath79_ohci_resources[0].start = AR71XX_OHCI_BASE;
+	ath79_ohci_resources[0].end = AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1;
+	platform_device_register(&ath79_ohci_device);
+
+	ath79_ehci_resources[0].start = AR71XX_EHCI_BASE;
+	ath79_ehci_resources[0].end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1;
+	ath79_ehci_device.name = "ar71xx-ehci";
+	platform_device_register(&ath79_ehci_device);
+}
+
+static void __init ar7240_usb_setup(void)
+{
+	void __iomem *usb_ctrl_base;
+
+	ath79_device_reset_clear(AR7240_RESET_OHCI_DLL);
+	ath79_device_reset_set(AR7240_RESET_USB_HOST);
+
+	mdelay(1000);
+
+	ath79_device_reset_set(AR7240_RESET_OHCI_DLL);
+	ath79_device_reset_clear(AR7240_RESET_USB_HOST);
+
+	usb_ctrl_base = ioremap(AR7240_USB_CTRL_BASE, AR7240_USB_CTRL_SIZE);
+
+	/* WAR for HW bug. Here it adjusts the duration between two SOFS */
+	__raw_writel(0x3, usb_ctrl_base + AR71XX_USB_CTRL_REG_FLADJ);
+
+	iounmap(usb_ctrl_base);
+
+	ath79_ohci_resources[0].start = AR7240_OHCI_BASE;
+	ath79_ohci_resources[0].end = AR7240_OHCI_BASE + AR7240_OHCI_SIZE - 1;
+	platform_device_register(&ath79_ohci_device);
+}
+
+static void __init ar724x_usb_setup(void)
+{
+	ath79_device_reset_set(AR724X_RESET_USBSUS_OVERRIDE);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR724X_RESET_USB_HOST);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR724X_RESET_USB_PHY);
+	mdelay(10);
+
+	ath79_ehci_resources[0].start = AR724X_EHCI_BASE;
+	ath79_ehci_resources[0].end = AR724X_EHCI_BASE + AR724X_EHCI_SIZE - 1;
+	ath79_ehci_device.name = "ar724x-ehci";
+	platform_device_register(&ath79_ehci_device);
+}
+
+static void __init ar913x_usb_setup(void)
+{
+	ath79_device_reset_set(AR913X_RESET_USBSUS_OVERRIDE);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR913X_RESET_USB_HOST);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR913X_RESET_USB_PHY);
+	mdelay(10);
+
+	ath79_ehci_resources[0].start = AR913X_EHCI_BASE;
+	ath79_ehci_resources[0].end = AR913X_EHCI_BASE + AR913X_EHCI_SIZE - 1;
+	ath79_ehci_device.name = "ar913x-ehci";
+	platform_device_register(&ath79_ehci_device);
+}
+
+static void __init ar933x_usb_setup(void)
+{
+	ath79_device_reset_set(AR933X_RESET_USBSUS_OVERRIDE);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR933X_RESET_USB_HOST);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR933X_RESET_USB_PHY);
+	mdelay(10);
+
+	ath79_ehci_resources[0].start = AR933X_EHCI_BASE;
+	ath79_ehci_resources[0].end = AR933X_EHCI_BASE + AR933X_EHCI_SIZE - 1;
+	ath79_ehci_device.name = "ar933x-ehci";
+	platform_device_register(&ath79_ehci_device);
+}
+
+void __init ath79_register_usb(void)
+{
+	if (soc_is_ar71xx())
+		ath79_usb_setup();
+	else if (soc_is_ar7240())
+		ar7240_usb_setup();
+	else if (soc_is_ar7241() || soc_is_ar7242())
+		ar724x_usb_setup();
+	else if (soc_is_ar913x())
+		ar913x_usb_setup();
+	else if (soc_is_ar933x())
+		ar933x_usb_setup();
+	else
+		BUG();
+}
diff --git a/arch/mips/ath79/dev-ar913x-wmac.h b/arch/mips/ath79/dev-usb.h
index 579d562bbda..4b86a69ca08 100644
--- a/arch/mips/ath79/dev-ar913x-wmac.h
+++ b/arch/mips/ath79/dev-usb.h
@@ -1,5 +1,5 @@
 /*
- *  Atheros AR913X SoC built-in WMAC device support
+ *  Atheros AR71XX/AR724X/AR913X USB Host Controller support
  *
  *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
@@ -9,9 +9,9 @@
  *  by the Free Software Foundation.
  */
 
-#ifndef _ATH79_DEV_AR913X_WMAC_H
-#define _ATH79_DEV_AR913X_WMAC_H
+#ifndef _ATH79_DEV_USB_H
+#define _ATH79_DEV_USB_H
 
-void ath79_register_ar913x_wmac(u8 *cal_data);
+void ath79_register_usb(void);
 
-#endif /* _ATH79_DEV_AR913X_WMAC_H */
+#endif /* _ATH79_DEV_USB_H */
diff --git a/arch/mips/ath79/dev-wmac.c b/arch/mips/ath79/dev-wmac.c
new file mode 100644
index 00000000000..24f546985b6
--- /dev/null
+++ b/arch/mips/ath79/dev-wmac.c
@@ -0,0 +1,109 @@
+/*
+ *  Atheros AR913X/AR933X SoC built-in WMAC device support
+ *
+ *  Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@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/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/ath9k_platform.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include "dev-wmac.h"
+
+static struct ath9k_platform_data ath79_wmac_data;
+
+static struct resource ath79_wmac_resources[] = {
+	{
+		/* .start and .end fields are filled dynamically */
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= ATH79_CPU_IRQ_IP2,
+		.end	= ATH79_CPU_IRQ_IP2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device ath79_wmac_device = {
+	.name		= "ath9k",
+	.id		= -1,
+	.resource	= ath79_wmac_resources,
+	.num_resources	= ARRAY_SIZE(ath79_wmac_resources),
+	.dev = {
+		.platform_data = &ath79_wmac_data,
+	},
+};
+
+static void __init ar913x_wmac_setup(void)
+{
+	/* reset the WMAC */
+	ath79_device_reset_set(AR913X_RESET_AMBA2WMAC);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR913X_RESET_AMBA2WMAC);
+	mdelay(10);
+
+	ath79_wmac_resources[0].start = AR913X_WMAC_BASE;
+	ath79_wmac_resources[0].end = AR913X_WMAC_BASE + AR913X_WMAC_SIZE - 1;
+}
+
+
+static int ar933x_wmac_reset(void)
+{
+	ath79_device_reset_clear(AR933X_RESET_WMAC);
+	ath79_device_reset_set(AR933X_RESET_WMAC);
+
+	return 0;
+}
+
+static int ar933x_r1_get_wmac_revision(void)
+{
+	return ath79_soc_rev;
+}
+
+static void __init ar933x_wmac_setup(void)
+{
+	u32 t;
+
+	ar933x_wmac_reset();
+
+	ath79_wmac_device.name = "ar933x_wmac";
+
+	ath79_wmac_resources[0].start = AR933X_WMAC_BASE;
+	ath79_wmac_resources[0].end = AR933X_WMAC_BASE + AR933X_WMAC_SIZE - 1;
+
+	t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
+	if (t & AR933X_BOOTSTRAP_REF_CLK_40)
+		ath79_wmac_data.is_clk_25mhz = false;
+	else
+		ath79_wmac_data.is_clk_25mhz = true;
+
+	if (ath79_soc_rev == 1)
+		ath79_wmac_data.get_mac_revision = ar933x_r1_get_wmac_revision;
+
+	ath79_wmac_data.external_reset = ar933x_wmac_reset;
+}
+
+void __init ath79_register_wmac(u8 *cal_data)
+{
+	if (soc_is_ar913x())
+		ar913x_wmac_setup();
+	if (soc_is_ar933x())
+		ar933x_wmac_setup();
+	else
+		BUG();
+
+	if (cal_data)
+		memcpy(ath79_wmac_data.eeprom_data, cal_data,
+		       sizeof(ath79_wmac_data.eeprom_data));
+
+	platform_device_register(&ath79_wmac_device);
+}
diff --git a/arch/mips/ath79/dev-wmac.h b/arch/mips/ath79/dev-wmac.h
new file mode 100644
index 00000000000..c9cd8709f09
--- /dev/null
+++ b/arch/mips/ath79/dev-wmac.h
@@ -0,0 +1,17 @@
+/*
+ *  Atheros AR913X/AR933X SoC built-in WMAC device support
+ *
+ *  Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@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 _ATH79_DEV_WMAC_H
+#define _ATH79_DEV_WMAC_H
+
+void ath79_register_wmac(u8 *cal_data);
+
+#endif /* _ATH79_DEV_WMAC_H */
diff --git a/arch/mips/ath79/early_printk.c b/arch/mips/ath79/early_printk.c
index 7499b0e9df2..6a51ced7a29 100644
--- a/arch/mips/ath79/early_printk.c
+++ b/arch/mips/ath79/early_printk.c
@@ -1,7 +1,7 @@
 /*
- *  Atheros AR71XX/AR724X/AR913X SoC early printk support
+ *  Atheros AR7XXX/AR9XXX SoC early printk support
  *
- *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *  This program is free software; you can redistribute it and/or modify it
@@ -10,27 +10,85 @@
  */
 
 #include <linux/io.h>
+#include <linux/errno.h>
 #include <linux/serial_reg.h>
 #include <asm/addrspace.h>
 
+#include <asm/mach-ath79/ath79.h>
 #include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ar933x_uart.h>
 
-static inline void prom_wait_thre(void __iomem *base)
+static void (*_prom_putchar) (unsigned char);
+
+static inline void prom_putchar_wait(void __iomem *reg, u32 mask, u32 val)
 {
-	u32 lsr;
+	u32 t;
 
 	do {
-		lsr = __raw_readl(base + UART_LSR * 4);
-		if (lsr & UART_LSR_THRE)
+		t = __raw_readl(reg);
+		if ((t & mask) == val)
 			break;
 	} while (1);
 }
 
-void prom_putchar(unsigned char ch)
+static void prom_putchar_ar71xx(unsigned char ch)
 {
 	void __iomem *base = (void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE));
 
-	prom_wait_thre(base);
+	prom_putchar_wait(base + UART_LSR * 4, UART_LSR_THRE, UART_LSR_THRE);
 	__raw_writel(ch, base + UART_TX * 4);
-	prom_wait_thre(base);
+	prom_putchar_wait(base + UART_LSR * 4, UART_LSR_THRE, UART_LSR_THRE);
+}
+
+static void prom_putchar_ar933x(unsigned char ch)
+{
+	void __iomem *base = (void __iomem *)(KSEG1ADDR(AR933X_UART_BASE));
+
+	prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR,
+			  AR933X_UART_DATA_TX_CSR);
+	__raw_writel(AR933X_UART_DATA_TX_CSR | ch, base + AR933X_UART_DATA_REG);
+	prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR,
+			  AR933X_UART_DATA_TX_CSR);
+}
+
+static void prom_putchar_dummy(unsigned char ch)
+{
+	/* nothing to do */
+}
+
+static void prom_putchar_init(void)
+{
+	void __iomem *base;
+	u32 id;
+
+	base = (void __iomem *)(KSEG1ADDR(AR71XX_RESET_BASE));
+	id = __raw_readl(base + AR71XX_RESET_REG_REV_ID);
+	id &= REV_ID_MAJOR_MASK;
+
+	switch (id) {
+	case REV_ID_MAJOR_AR71XX:
+	case REV_ID_MAJOR_AR7240:
+	case REV_ID_MAJOR_AR7241:
+	case REV_ID_MAJOR_AR7242:
+	case REV_ID_MAJOR_AR913X:
+		_prom_putchar = prom_putchar_ar71xx;
+		break;
+
+	case REV_ID_MAJOR_AR9330:
+	case REV_ID_MAJOR_AR9331:
+		_prom_putchar = prom_putchar_ar933x;
+		break;
+
+	default:
+		_prom_putchar = prom_putchar_dummy;
+		break;
+	}
+}
+
+void prom_putchar(unsigned char ch)
+{
+	if (!_prom_putchar)
+		prom_putchar_init();
+
+	_prom_putchar(ch);
 }
diff --git a/arch/mips/ath79/gpio.c b/arch/mips/ath79/gpio.c
index a0c426b8212..a2f8ca630ed 100644
--- a/arch/mips/ath79/gpio.c
+++ b/arch/mips/ath79/gpio.c
@@ -153,6 +153,8 @@ void __init ath79_gpio_init(void)
 		ath79_gpio_count = AR724X_GPIO_COUNT;
 	else if (soc_is_ar913x())
 		ath79_gpio_count = AR913X_GPIO_COUNT;
+	else if (soc_is_ar933x())
+		ath79_gpio_count = AR933X_GPIO_COUNT;
 	else
 		BUG();
 
diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index ac610d5fe3b..1b073de4468 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -46,6 +46,15 @@ static void ath79_misc_irq_handler(unsigned int irq, struct irq_desc *desc)
 	else if (pending & MISC_INT_TIMER)
 		generic_handle_irq(ATH79_MISC_IRQ_TIMER);
 
+	else if (pending & MISC_INT_TIMER2)
+		generic_handle_irq(ATH79_MISC_IRQ_TIMER2);
+
+	else if (pending & MISC_INT_TIMER3)
+		generic_handle_irq(ATH79_MISC_IRQ_TIMER3);
+
+	else if (pending & MISC_INT_TIMER4)
+		generic_handle_irq(ATH79_MISC_IRQ_TIMER4);
+
 	else if (pending & MISC_INT_OHCI)
 		generic_handle_irq(ATH79_MISC_IRQ_OHCI);
 
@@ -58,6 +67,9 @@ static void ath79_misc_irq_handler(unsigned int irq, struct irq_desc *desc)
 	else if (pending & MISC_INT_WDOG)
 		generic_handle_irq(ATH79_MISC_IRQ_WDOG);
 
+	else if (pending & MISC_INT_ETHSW)
+		generic_handle_irq(ATH79_MISC_IRQ_ETHSW);
+
 	else
 		spurious_interrupt();
 }
@@ -117,7 +129,7 @@ static void __init ath79_misc_irq_init(void)
 
 	if (soc_is_ar71xx() || soc_is_ar913x())
 		ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
-	else if (soc_is_ar724x())
+	else if (soc_is_ar724x() || soc_is_ar933x())
 		ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
 	else
 		BUG();
@@ -174,6 +186,9 @@ void __init arch_init_irq(void)
 	} else if (soc_is_ar913x()) {
 		ath79_ip2_flush_reg = AR913X_DDR_REG_FLUSH_WMAC;
 		ath79_ip3_flush_reg = AR913X_DDR_REG_FLUSH_USB;
+	} else if (soc_is_ar933x()) {
+		ath79_ip2_flush_reg = AR933X_DDR_REG_FLUSH_WMAC;
+		ath79_ip3_flush_reg = AR933X_DDR_REG_FLUSH_USB;
 	} else
 		BUG();
 
diff --git a/arch/mips/ath79/mach-ap121.c b/arch/mips/ath79/mach-ap121.c
new file mode 100644
index 00000000000..4c20200d7c7
--- /dev/null
+++ b/arch/mips/ath79/mach-ap121.c
@@ -0,0 +1,92 @@
+/*
+ *  Atheros AP121 board support
+ *
+ *  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 "machtypes.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-spi.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+
+#define AP121_GPIO_LED_WLAN		0
+#define AP121_GPIO_LED_USB		1
+
+#define AP121_GPIO_BTN_JUMPSTART	11
+#define AP121_GPIO_BTN_RESET		12
+
+#define AP121_KEYS_POLL_INTERVAL	20	/* msecs */
+#define AP121_KEYS_DEBOUNCE_INTERVAL	(3 * AP121_KEYS_POLL_INTERVAL)
+
+#define AP121_CAL_DATA_ADDR	0x1fff1000
+
+static struct gpio_led ap121_leds_gpio[] __initdata = {
+	{
+		.name		= "ap121:green:usb",
+		.gpio		= AP121_GPIO_LED_USB,
+		.active_low	= 0,
+	},
+	{
+		.name		= "ap121:green:wlan",
+		.gpio		= AP121_GPIO_LED_WLAN,
+		.active_low	= 0,
+	},
+};
+
+static struct gpio_keys_button ap121_gpio_keys[] __initdata = {
+	{
+		.desc		= "jumpstart button",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = AP121_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= AP121_GPIO_BTN_JUMPSTART,
+		.active_low	= 1,
+	},
+	{
+		.desc		= "reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = AP121_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= AP121_GPIO_BTN_RESET,
+		.active_low	= 1,
+	}
+};
+
+static struct spi_board_info ap121_spi_info[] = {
+	{
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.max_speed_hz	= 25000000,
+		.modalias	= "mx25l1606e",
+	}
+};
+
+static struct ath79_spi_platform_data ap121_spi_data = {
+	.bus_num	= 0,
+	.num_chipselect	= 1,
+};
+
+static void __init ap121_setup(void)
+{
+	u8 *cal_data = (u8 *) KSEG1ADDR(AP121_CAL_DATA_ADDR);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(ap121_leds_gpio),
+				 ap121_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, AP121_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(ap121_gpio_keys),
+					ap121_gpio_keys);
+
+	ath79_register_spi(&ap121_spi_data, ap121_spi_info,
+			   ARRAY_SIZE(ap121_spi_info));
+	ath79_register_usb();
+	ath79_register_wmac(cal_data);
+}
+
+MIPS_MACHINE(ATH79_MACH_AP121, "AP121", "Atheros AP121 reference board",
+	     ap121_setup);
diff --git a/arch/mips/ath79/mach-ap81.c b/arch/mips/ath79/mach-ap81.c
index eee4c121deb..abe19836331 100644
--- a/arch/mips/ath79/mach-ap81.c
+++ b/arch/mips/ath79/mach-ap81.c
@@ -10,10 +10,11 @@
  */
 
 #include "machtypes.h"
-#include "dev-ar913x-wmac.h"
+#include "dev-wmac.h"
 #include "dev-gpio-buttons.h"
 #include "dev-leds-gpio.h"
 #include "dev-spi.h"
+#include "dev-usb.h"
 
 #define AP81_GPIO_LED_STATUS	1
 #define AP81_GPIO_LED_AOSS	3
@@ -91,7 +92,8 @@ static void __init ap81_setup(void)
 					ap81_gpio_keys);
 	ath79_register_spi(&ap81_spi_data, ap81_spi_info,
 			   ARRAY_SIZE(ap81_spi_info));
-	ath79_register_ar913x_wmac(cal_data);
+	ath79_register_wmac(cal_data);
+	ath79_register_usb();
 }
 
 MIPS_MACHINE(ATH79_MACH_AP81, "AP81", "Atheros AP81 reference board",
diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c
index ec7b7a135d5..fe9701a3229 100644
--- a/arch/mips/ath79/mach-pb44.c
+++ b/arch/mips/ath79/mach-pb44.c
@@ -18,6 +18,7 @@
 #include "dev-gpio-buttons.h"
 #include "dev-leds-gpio.h"
 #include "dev-spi.h"
+#include "dev-usb.h"
 
 #define PB44_GPIO_I2C_SCL	0
 #define PB44_GPIO_I2C_SDA	1
@@ -112,6 +113,7 @@ static void __init pb44_init(void)
 					pb44_gpio_keys);
 	ath79_register_spi(&pb44_spi_data, pb44_spi_info,
 			   ARRAY_SIZE(pb44_spi_info));
+	ath79_register_usb();
 }
 
 MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
diff --git a/arch/mips/ath79/mach-ubnt-xm.c b/arch/mips/ath79/mach-ubnt-xm.c
new file mode 100644
index 00000000000..3c311a53934
--- /dev/null
+++ b/arch/mips/ath79/mach-ubnt-xm.c
@@ -0,0 +1,119 @@
+/*
+ *  Ubiquiti Networks XM (rev 1.0) board support
+ *
+ *  Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
+ *
+ *  Derived from: mach-pb44.c
+ *
+ *  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/init.h>
+#include <linux/pci.h>
+
+#ifdef CONFIG_PCI
+#include <linux/ath9k_platform.h>
+#include <asm/mach-ath79/pci-ath724x.h>
+#endif /* CONFIG_PCI */
+
+#include "machtypes.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-spi.h"
+
+#define UBNT_XM_GPIO_LED_L1		0
+#define UBNT_XM_GPIO_LED_L2		1
+#define UBNT_XM_GPIO_LED_L3		11
+#define UBNT_XM_GPIO_LED_L4		7
+
+#define UBNT_XM_GPIO_BTN_RESET		12
+
+#define UBNT_XM_KEYS_POLL_INTERVAL	20
+#define UBNT_XM_KEYS_DEBOUNCE_INTERVAL	(3 * UBNT_XM_KEYS_POLL_INTERVAL)
+
+#define UBNT_XM_PCI_IRQ			48
+#define UBNT_XM_EEPROM_ADDR		(u8 *) KSEG1ADDR(0x1fff1000)
+
+static struct gpio_led ubnt_xm_leds_gpio[] __initdata = {
+	{
+		.name		= "ubnt-xm:red:link1",
+		.gpio		= UBNT_XM_GPIO_LED_L1,
+		.active_low	= 0,
+	}, {
+		.name		= "ubnt-xm:orange:link2",
+		.gpio		= UBNT_XM_GPIO_LED_L2,
+		.active_low	= 0,
+	}, {
+		.name		= "ubnt-xm:green:link3",
+		.gpio		= UBNT_XM_GPIO_LED_L3,
+		.active_low	= 0,
+	}, {
+		.name		= "ubnt-xm:green:link4",
+		.gpio		= UBNT_XM_GPIO_LED_L4,
+		.active_low	= 0,
+	},
+};
+
+static struct gpio_keys_button ubnt_xm_gpio_keys[] __initdata = {
+	{
+		.desc			= "reset",
+		.type			= EV_KEY,
+		.code			= KEY_RESTART,
+		.debounce_interval	= UBNT_XM_KEYS_DEBOUNCE_INTERVAL,
+		.gpio			= UBNT_XM_GPIO_BTN_RESET,
+		.active_low		= 1,
+	}
+};
+
+static struct spi_board_info ubnt_xm_spi_info[] = {
+	{
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.max_speed_hz	= 25000000,
+		.modalias	= "mx25l6405d",
+	}
+};
+
+static struct ath79_spi_platform_data ubnt_xm_spi_data = {
+	.bus_num		= 0,
+	.num_chipselect		= 1,
+};
+
+#ifdef CONFIG_PCI
+static struct ath9k_platform_data ubnt_xm_eeprom_data;
+
+static struct ath724x_pci_data ubnt_xm_pci_data[] = {
+	{
+		.irq	= UBNT_XM_PCI_IRQ,
+		.pdata	= &ubnt_xm_eeprom_data,
+	},
+};
+#endif /* CONFIG_PCI */
+
+static void __init ubnt_xm_init(void)
+{
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(ubnt_xm_leds_gpio),
+				 ubnt_xm_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1, UBNT_XM_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(ubnt_xm_gpio_keys),
+					ubnt_xm_gpio_keys);
+
+	ath79_register_spi(&ubnt_xm_spi_data, ubnt_xm_spi_info,
+			   ARRAY_SIZE(ubnt_xm_spi_info));
+
+#ifdef CONFIG_PCI
+	memcpy(ubnt_xm_eeprom_data.eeprom_data, UBNT_XM_EEPROM_ADDR,
+	       sizeof(ubnt_xm_eeprom_data.eeprom_data));
+
+	ath724x_pci_add_data(ubnt_xm_pci_data, ARRAY_SIZE(ubnt_xm_pci_data));
+#endif /* CONFIG_PCI */
+
+}
+
+MIPS_MACHINE(ATH79_MACH_UBNT_XM,
+	     "UBNT-XM",
+	     "Ubiquiti Networks XM (rev 1.0) board",
+	     ubnt_xm_init);
diff --git a/arch/mips/ath79/machtypes.h b/arch/mips/ath79/machtypes.h
index 3940fe470b2..9a1f3826626 100644
--- a/arch/mips/ath79/machtypes.h
+++ b/arch/mips/ath79/machtypes.h
@@ -16,8 +16,10 @@
 
 enum ath79_mach_type {
 	ATH79_MACH_GENERIC = 0,
+	ATH79_MACH_AP121,		/* Atheros AP121 reference board */
 	ATH79_MACH_AP81,		/* Atheros AP81 reference board */
 	ATH79_MACH_PB44,		/* Atheros PB44 reference board */
+	ATH79_MACH_UBNT_XM,		/* Ubiquiti Networks XM board rev 1.0 */
 };
 
 #endif /* _ATH79_MACHTYPE_H */
diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c
index 159b42f106b..80a7d4023d7 100644
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -101,19 +101,31 @@ static void __init ath79_detect_sys_type(void)
 	case REV_ID_MAJOR_AR7240:
 		ath79_soc = ATH79_SOC_AR7240;
 		chip = "7240";
-		rev = (id & AR724X_REV_ID_REVISION_MASK);
+		rev = id & AR724X_REV_ID_REVISION_MASK;
 		break;
 
 	case REV_ID_MAJOR_AR7241:
 		ath79_soc = ATH79_SOC_AR7241;
 		chip = "7241";
-		rev = (id & AR724X_REV_ID_REVISION_MASK);
+		rev = id & AR724X_REV_ID_REVISION_MASK;
 		break;
 
 	case REV_ID_MAJOR_AR7242:
 		ath79_soc = ATH79_SOC_AR7242;
 		chip = "7242";
-		rev = (id & AR724X_REV_ID_REVISION_MASK);
+		rev = id & AR724X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_AR9330:
+		ath79_soc = ATH79_SOC_AR9330;
+		chip = "9330";
+		rev = id & AR933X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_AR9331:
+		ath79_soc = ATH79_SOC_AR9331;
+		chip = "9331";
+		rev = id & AR933X_REV_ID_REVISION_MASK;
 		break;
 
 	case REV_ID_MAJOR_AR913X:
@@ -134,9 +146,11 @@ static void __init ath79_detect_sys_type(void)
 		break;
 
 	default:
-		panic("ath79: unknown SoC, id:0x%08x\n", id);
+		panic("ath79: unknown SoC, id:0x%08x", id);
 	}
 
+	ath79_soc_rev = rev;
+
 	sprintf(ath79_sys_type, "Atheros AR%s rev %u", chip, rev);
 	pr_info("SoC: %s\n", ath79_sys_type);
 }