merge

4 files changed, 6355 insertions, 0 deletions

diff --git a/target/config/Config.in b/target/config/Config.in
index 7dd6c1947..ff8668b35 100644
--- a/target/config/Config.in
+++ b/target/config/Config.in
@@ -180,6 +180,7 @@ config ADK_TARGET_CFLAGS
 
 config ADK_TARGET_CMDLINE
 	string
+	default "console=ttyS0,9600" if ADK_TARGET_SYSTEM_FON_FON2100
 	default "console=ttyS0,38400" if ADK_TARGET_SYSTEM_PCENGINES_WRAP
 	default "console=ttyS0,115200 console=tty0 geodewdt.nowayout=1" if ADK_TARGET_SYSTEM_PCENGINES_ALIX1C
 	default "console=ttyS0,115200 console=tty0" if ADK_TARGET_SYSTEM_IBM_X40
diff --git a/target/linux/config/Config.in.netdevice b/target/linux/config/Config.in.netdevice
index 6c30397a4..a0ec08247 100644
--- a/target/linux/config/Config.in.netdevice
+++ b/target/linux/config/Config.in.netdevice
@@ -7,6 +7,9 @@ config ADK_KERNEL_NETDEVICES
 config ADK_KERNEL_NET_ETHERNET
 	boolean
 
+config ADK_KERNEL_PHYLIB
+	boolean
+
 config ADK_KERNEL_MII
 	boolean
 
@@ -62,6 +65,17 @@ config ADK_KERNEL_VIA_RHINE
 	default n
 	help
 
+config ADK_KERNEL_AR231X_ETHERNET
+	boolean
+	select ADK_KERNEL_NETDEVICES
+	select ADK_KERNEL_NET_ETHERNET
+	select ADK_KERNEL_NET_PCI
+	select ADK_KERNEL_MII
+	select ADK_KERNEL_PHYLIB
+	default y if ADK_TARGET_SYSTEM_FON_FON2100
+	default n
+	help
+
 config ADK_KERNEL_KORINA
 	boolean
 	select ADK_KERNEL_NETDEVICES
diff --git a/target/linux/patches/2.6.37/atheros.patch b/target/linux/patches/2.6.37/atheros.patch
new file mode 100644
index 000000000..ee5184a00
--- /dev/null
+++ b/target/linux/patches/2.6.37/atheros.patch
@@ -0,0 +1,6332 @@
+diff -Nur linux-2.6.37.orig/arch/mips/Kbuild.platforms linux-2.6.37/arch/mips/Kbuild.platforms
+--- linux-2.6.37.orig/arch/mips/Kbuild.platforms	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/arch/mips/Kbuild.platforms	2011-04-12 08:12:01.000000000 +0200
+@@ -5,6 +5,7 @@
+ platforms += bcm47xx
+ platforms += bcm63xx
+ platforms += cavium-octeon
++platforms += ar231x
+ platforms += cobalt
+ platforms += dec
+ platforms += emma
+diff -Nur linux-2.6.37.orig/arch/mips/Kconfig linux-2.6.37/arch/mips/Kconfig
+--- linux-2.6.37.orig/arch/mips/Kconfig	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/arch/mips/Kconfig	2011-04-12 08:12:01.000000000 +0200
+@@ -102,6 +102,20 @@
+ 	help
+ 	 Support for BCM63XX based boards
+ 
++config ATHEROS_AR231X
++	bool "Atheros 231x/531x SoC support"
++	select CEVT_R4K
++	select CSRC_R4K
++	select DMA_NONCOHERENT
++	select IRQ_CPU
++	select SYS_HAS_CPU_MIPS32_R1
++	select SYS_SUPPORTS_BIG_ENDIAN
++	select SYS_SUPPORTS_32BIT_KERNEL
++	select GENERIC_GPIO
++	select SYS_HAS_EARLY_PRINTK
++	help
++	  Support for AR231x and AR531x based boards
++
+ config MIPS_COBALT
+ 	bool "Cobalt Server"
+ 	select CEVT_R4K
+@@ -716,6 +730,7 @@
+ 
+ endchoice
+ 
++source "arch/mips/ar231x/Kconfig"
+ source "arch/mips/alchemy/Kconfig"
+ source "arch/mips/bcm63xx/Kconfig"
+ source "arch/mips/jazz/Kconfig"
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/Kconfig linux-2.6.37/arch/mips/ar231x/Kconfig
+--- linux-2.6.37.orig/arch/mips/ar231x/Kconfig	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/Kconfig	2011-04-12 08:12:33.000000000 +0200
+@@ -0,0 +1,27 @@
++config ATHEROS_AR5312
++	bool "Atheros 5312/2312+ support"
++	depends on ATHEROS_AR231X
++	default y
++
++config ATHEROS_AR2315
++	bool "Atheros 2315+ support"
++	depends on ATHEROS_AR231X
++	select DMA_NONCOHERENT
++	select CEVT_R4K
++	select CSRC_R4K
++	select IRQ_CPU
++	select SYS_HAS_CPU_MIPS32_R1
++	select SYS_SUPPORTS_32BIT_KERNEL
++	select SYS_SUPPORTS_BIG_ENDIAN
++	select GENERIC_GPIO
++	default y
++
++config ATHEROS_AR2315_PCI
++	bool "PCI support"
++	depends on ATHEROS_AR2315
++	select HW_HAS_PCI
++	select PCI
++	select USB_ARCH_HAS_HCD
++	select USB_ARCH_HAS_OHCI
++	select USB_ARCH_HAS_EHCI
++	default y
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/Makefile linux-2.6.37/arch/mips/ar231x/Makefile
+--- linux-2.6.37.orig/arch/mips/ar231x/Makefile	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/Makefile	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,17 @@
++#
++# This file is subject to the terms and conditions of the GNU General Public
++# License.  See the file "COPYING" in the main directory of this archive
++# for more details.
++#
++# Copyright (C) 2006 FON Technology, SL.
++# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++# Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++#
++
++obj-y += board.o prom.o devices.o
++
++obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
++
++obj-$(CONFIG_ATHEROS_AR5312) += ar5312.o
++obj-$(CONFIG_ATHEROS_AR2315) += ar2315.o
++obj-$(CONFIG_ATHEROS_AR2315_PCI) += pci.o
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/Platform linux-2.6.37/arch/mips/ar231x/Platform
+--- linux-2.6.37.orig/arch/mips/ar231x/Platform	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/Platform	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,6 @@
++#
++# Atheros AR5312/AR2312 WiSoC
++#
++platform-$(CONFIG_ATHEROS_AR231X)          += ar231x/
++cflags-$(CONFIG_ATHEROS_AR231X)        += -I$(srctree)/arch/mips/include/asm/mach-ar231x
++load-$(CONFIG_ATHEROS_AR231X)          += 0xffffffff80041000
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/ar2315.c linux-2.6.37/arch/mips/ar231x/ar2315.c
+--- linux-2.6.37.orig/arch/mips/ar231x/ar2315.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/ar2315.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,683 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * Platform devices for Atheros SoCs
++ */
++
++#include <generated/autoconf.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/string.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/reboot.h>
++#include <linux/delay.h>
++#include <linux/leds.h>
++#include <asm/bootinfo.h>
++#include <asm/reboot.h>
++#include <asm/time.h>
++#include <asm/irq.h>
++#include <asm/io.h>
++#include <asm/gpio.h>
++
++#include <ar231x_platform.h>
++#include <ar2315_regs.h>
++#include <ar231x.h>
++#include "devices.h"
++#include "ar2315.h"
++
++static u32 gpiointmask = 0, gpiointval = 0;
++
++static inline void ar2315_gpio_irq(void)
++{
++	u32 pend;
++	int bit = -1;
++
++	/* only do one gpio interrupt at a time */
++	pend = (ar231x_read_reg(AR2315_GPIO_DI) ^ gpiointval) & gpiointmask;
++
++	if (pend) {
++		bit = fls(pend) - 1;
++		pend &= ~(1 << bit);
++		gpiointval ^= (1 << bit);
++	}
++
++	if (!pend)
++		ar231x_write_reg(AR2315_ISR, AR2315_ISR_GPIO);
++
++	/* Enable interrupt with edge detection */
++	if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(bit)) != AR2315_GPIO_CR_I(bit))
++		return;
++
++	if (bit >= 0)
++		do_IRQ(AR531X_GPIO_IRQ_BASE + bit);
++}
++
++#ifdef CONFIG_ATHEROS_AR2315_PCI
++static inline void pci_abort_irq(void)
++{
++	ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_ABORT_INT);
++}
++
++static inline void pci_ack_irq(void)
++{
++	ar231x_write_reg(AR2315_PCI_INT_STATUS, AR2315_PCI_EXT_INT);
++}
++
++void ar2315_pci_irq(int irq)
++{
++	if (ar231x_read_reg(AR2315_PCI_INT_STATUS) == AR2315_PCI_ABORT_INT)
++		pci_abort_irq();
++	else {
++		do_IRQ(irq);
++		pci_ack_irq();
++	}
++}
++#endif /* CONFIG_ATHEROS_AR2315_PCI */
++
++/*
++ * Called when an interrupt is received, this function
++ * determines exactly which interrupt it was, and it
++ * invokes the appropriate handler.
++ *
++ * Implicitly, we also define interrupt priority by
++ * choosing which to dispatch first.
++ */
++static asmlinkage void
++ar2315_irq_dispatch(void)
++{
++	int pending = read_c0_status() & read_c0_cause();
++
++	if (pending & CAUSEF_IP3)
++		do_IRQ(AR2315_IRQ_WLAN0_INTRS);
++	else if (pending & CAUSEF_IP4)
++		do_IRQ(AR2315_IRQ_ENET0_INTRS);
++#ifdef CONFIG_ATHEROS_AR2315_PCI
++	else if (pending & CAUSEF_IP5)
++		ar2315_pci_irq(AR2315_IRQ_LCBUS_PCI);
++#endif
++	else if (pending & CAUSEF_IP2) {
++		unsigned int misc_intr = ar231x_read_reg(AR2315_ISR) & ar231x_read_reg(AR2315_IMR);
++
++		if (misc_intr & AR2315_ISR_SPI)
++			do_IRQ(AR531X_MISC_IRQ_SPI);
++		else if (misc_intr & AR2315_ISR_TIMER)
++			do_IRQ(AR531X_MISC_IRQ_TIMER);
++		else if (misc_intr & AR2315_ISR_AHB)
++			do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
++		else if (misc_intr & AR2315_ISR_GPIO)
++			ar2315_gpio_irq();
++		else if (misc_intr & AR2315_ISR_UART0)
++			do_IRQ(AR531X_MISC_IRQ_UART0);
++		else if (misc_intr & AR2315_ISR_WD)
++			do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
++		else
++			do_IRQ(AR531X_MISC_IRQ_NONE);
++	} else if (pending & CAUSEF_IP7)
++		do_IRQ(AR531X_IRQ_CPU_CLOCK);
++}
++
++static void ar2315_set_gpiointmask(int gpio, int level)
++{
++	u32 reg;
++
++	reg = ar231x_read_reg(AR2315_GPIO_INT);
++	reg &= ~(AR2315_GPIO_INT_M | AR2315_GPIO_INT_LVL_M);
++	reg |= gpio | AR2315_GPIO_INT_LVL(level);
++	ar231x_write_reg(AR2315_GPIO_INT, reg);
++}
++
++static void ar2315_gpio_intr_enable(unsigned int irq)
++{
++	unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
++
++	/* Enable interrupt with edge detection */
++	if ((ar231x_read_reg(AR2315_GPIO_CR) & AR2315_GPIO_CR_M(gpio)) != AR2315_GPIO_CR_I(gpio))
++		return;
++
++	gpiointmask |= (1 << gpio);
++	ar2315_set_gpiointmask(gpio, 3);
++}
++
++static unsigned int ar2315_gpio_intr_startup(unsigned int irq)
++{
++	unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
++
++	/* reconfigure GPIO line as input */
++	ar231x_mask_reg(AR2315_GPIO_CR, AR2315_GPIO_CR_M(gpio), AR2315_GPIO_CR_I(gpio));
++	ar2315_gpio_intr_enable(irq);
++	return 0;
++}
++
++static void ar2315_gpio_intr_disable(unsigned int irq)
++{
++	unsigned int gpio = irq - AR531X_GPIO_IRQ_BASE;
++
++	/* Disable interrupt */
++	gpiointmask &= ~(1 << gpio);
++	ar2315_set_gpiointmask(gpio, 0);
++}
++
++static void
++ar2315_gpio_intr_end(unsigned int irq)
++{
++	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
++		ar2315_gpio_intr_enable(irq);
++}
++
++static struct irq_chip ar2315_gpio_intr_controller = {
++	.name	= "AR2315-GPIO",
++	.startup  = ar2315_gpio_intr_startup,
++	.ack      = ar2315_gpio_intr_disable,
++	.mask_ack = ar2315_gpio_intr_disable,
++	.mask     = ar2315_gpio_intr_disable,
++	.unmask   = ar2315_gpio_intr_enable,
++	.end      = ar2315_gpio_intr_end,
++};
++
++static void
++ar2315_misc_intr_enable(unsigned int irq)
++{
++	unsigned int imr;
++
++	imr = ar231x_read_reg(AR2315_IMR);
++	switch(irq) {
++	case AR531X_MISC_IRQ_SPI:
++		 imr |= AR2315_ISR_SPI;
++		 break;
++	case AR531X_MISC_IRQ_TIMER:
++	     imr |= AR2315_ISR_TIMER;
++	     break;
++	case AR531X_MISC_IRQ_AHB_PROC:
++	     imr |= AR2315_ISR_AHB;
++	     break;
++	case AR531X_MISC_IRQ_GPIO:
++	     imr |= AR2315_ISR_GPIO;
++	     break;
++	case AR531X_MISC_IRQ_UART0:
++	     imr |= AR2315_ISR_UART0;
++	     break;
++	case AR531X_MISC_IRQ_WATCHDOG:
++	     imr |= AR2315_ISR_WD;
++	     break;
++	default:
++		break;
++	}
++	ar231x_write_reg(AR2315_IMR, imr);
++}
++
++static void
++ar2315_misc_intr_disable(unsigned int irq)
++{
++	unsigned int imr;
++
++	imr = ar231x_read_reg(AR2315_IMR);
++	switch(irq) {
++	case AR531X_MISC_IRQ_SPI:
++		 imr &= ~AR2315_ISR_SPI;
++		 break;
++	case AR531X_MISC_IRQ_TIMER:
++	     imr &= ~AR2315_ISR_TIMER;
++	     break;
++	case AR531X_MISC_IRQ_AHB_PROC:
++	     imr &= ~AR2315_ISR_AHB;
++	     break;
++	case AR531X_MISC_IRQ_GPIO:
++	     imr &= ~AR2315_ISR_GPIO;
++	     break;
++	case AR531X_MISC_IRQ_UART0:
++	     imr &= ~AR2315_ISR_UART0;
++	     break;
++	case AR531X_MISC_IRQ_WATCHDOG:
++	     imr &= ~AR2315_ISR_WD;
++	     break;
++	default:
++		break;
++	}
++	ar231x_write_reg(AR2315_IMR, imr);
++}
++
++static void
++ar2315_misc_intr_end(unsigned int irq)
++{
++	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
++		ar2315_misc_intr_enable(irq);
++}
++
++
++static struct irq_chip ar2315_misc_intr_controller = {
++	.name	= "AR2315-MISC",
++	.ack      = ar2315_misc_intr_disable,
++	.mask_ack = ar2315_misc_intr_disable,
++	.mask     = ar2315_misc_intr_disable,
++	.unmask   = ar2315_misc_intr_enable,
++	.end      = ar2315_misc_intr_end,
++};
++
++static irqreturn_t ar2315_ahb_proc_handler(int cpl, void *dev_id)
++{
++    ar231x_write_reg(AR2315_AHB_ERR0, AHB_ERROR_DET);
++    ar231x_read_reg(AR2315_AHB_ERR1);
++
++    printk(KERN_ERR "AHB fatal error\n");
++    machine_restart("AHB error"); /* Catastrophic failure */
++
++    return IRQ_HANDLED;
++}
++
++static struct irqaction ar2315_ahb_proc_interrupt  = {
++	.handler	= ar2315_ahb_proc_handler,
++	.flags		= IRQF_DISABLED,
++	.name		= "ar2315_ahb_proc_interrupt",
++};
++
++static struct irqaction cascade  = {
++	.handler	= no_action,
++	.flags		= IRQF_DISABLED,
++	.name		= "cascade",
++};
++
++void
++ar2315_irq_init(void)
++{
++	int i;
++
++	if (!is_2315())
++		return;
++
++	ar231x_irq_dispatch = ar2315_irq_dispatch;
++	gpiointval = ar231x_read_reg(AR2315_GPIO_DI);
++	for (i = 0; i < AR531X_MISC_IRQ_COUNT; i++) {
++		int irq = AR531X_MISC_IRQ_BASE + i;
++		set_irq_chip_and_handler(irq, &ar2315_misc_intr_controller,
++			handle_level_irq);
++	}
++	for (i = 0; i < AR531X_GPIO_IRQ_COUNT; i++) {
++		int irq = AR531X_GPIO_IRQ_BASE + i;
++		set_irq_chip_and_handler(irq, &ar2315_gpio_intr_controller,
++			handle_level_irq);
++	}
++	setup_irq(AR531X_MISC_IRQ_GPIO, &cascade);
++	setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar2315_ahb_proc_interrupt);
++	setup_irq(AR2315_IRQ_MISC_INTRS, &cascade);
++}
++
++const struct ar231x_gpiodev ar2315_gpiodev;
++
++static u32
++ar2315_gpio_get_output(void)
++{
++	u32 reg;
++	reg = ar231x_read_reg(AR2315_GPIO_CR);
++	reg &= ar2315_gpiodev.valid_mask;
++	return reg;
++}
++
++static u32
++ar2315_gpio_set_output(u32 mask, u32 val)
++{
++	u32 reg;
++
++	reg = ar231x_read_reg(AR2315_GPIO_CR);
++	reg &= ~mask;
++	reg |= val;
++	ar231x_write_reg(AR2315_GPIO_CR, reg);
++	return reg;
++}
++
++static u32
++ar2315_gpio_get(void)
++{
++	u32 reg;
++	reg = ar231x_read_reg(AR2315_GPIO_DI);
++	reg &= ar2315_gpiodev.valid_mask;
++	return reg;
++}
++
++static u32
++ar2315_gpio_set(u32 mask, u32 value)
++{
++	u32 reg;
++	reg = ar231x_read_reg(AR2315_GPIO_DO);
++	reg &= ~mask;
++	reg |= value;
++	ar231x_write_reg(AR2315_GPIO_DO, reg);
++	return reg;
++}
++
++const struct ar231x_gpiodev ar2315_gpiodev = {
++	.valid_mask = (1 << 22) - 1,
++	.get_output = ar2315_gpio_get_output,
++	.set_output = ar2315_gpio_set_output,
++	.get = ar2315_gpio_get,
++	.set = ar2315_gpio_set,
++};
++
++static struct ar231x_eth ar2315_eth_data = {
++	.reset_base = AR2315_RESET,
++	.reset_mac = AR2315_RESET_ENET0,
++	.reset_phy = AR2315_RESET_EPHY0,
++	.phy_base = AR2315_ENET0,
++	.config = &ar231x_board,
++};
++
++static struct resource ar2315_spiflash_res[] = {
++	{
++		.name = "flash_base",
++		.flags = IORESOURCE_MEM,
++		.start = KSEG1ADDR(AR2315_SPI_READ),
++		.end = KSEG1ADDR(AR2315_SPI_READ) + 0x1000000 - 1,
++	},
++	{
++		.name = "flash_regs",
++		.flags = IORESOURCE_MEM,
++		.start = 0x11300000,
++		.end = 0x11300012,
++	},
++};
++
++static struct platform_device ar2315_spiflash = {
++	.id = 0,
++	.name = "spiflash",
++	.resource = ar2315_spiflash_res,
++	.num_resources = ARRAY_SIZE(ar2315_spiflash_res)
++};
++
++static struct platform_device ar2315_wdt = {
++	.id = 0,
++	.name = "ar2315_wdt",
++};
++
++#define SPI_FLASH_CTL      0x00
++#define SPI_FLASH_OPCODE   0x04
++#define SPI_FLASH_DATA     0x08
++
++static inline u32
++spiflash_read_reg(int reg)
++{
++	return ar231x_read_reg(KSEG1ADDR(AR2315_SPI) + reg);
++}
++
++static inline void
++spiflash_write_reg(int reg, u32 data)
++{
++	ar231x_write_reg(KSEG1ADDR(AR2315_SPI) + reg, data);
++}
++
++static u32
++spiflash_wait_status(void)
++{
++	u32 reg;
++
++	do {
++		reg = spiflash_read_reg(SPI_FLASH_CTL);
++	} while (reg & SPI_CTL_BUSY);
++
++	return reg;
++}
++
++static u8
++spiflash_probe(void)
++{
++	u32 reg;
++
++	reg = spiflash_wait_status();
++	reg &= ~SPI_CTL_TX_RX_CNT_MASK;
++	reg |= (1 << 4) | 4 | SPI_CTL_START;
++
++	spiflash_write_reg(SPI_FLASH_OPCODE, 0xab);
++	spiflash_write_reg(SPI_FLASH_CTL, reg);
++
++	reg = spiflash_wait_status();
++	reg = spiflash_read_reg(SPI_FLASH_DATA);
++	reg &= 0xff;
++
++	return (u8) reg;
++}
++
++
++#define STM_8MBIT_SIGNATURE     0x13
++#define STM_16MBIT_SIGNATURE    0x14
++#define STM_32MBIT_SIGNATURE    0x15
++#define STM_64MBIT_SIGNATURE    0x16
++#define STM_128MBIT_SIGNATURE   0x17
++
++static u8 __init *
++ar2315_flash_limit(void)
++{
++	u32 flash_size = 0;
++
++	/* probe the flash chip size */
++	switch(spiflash_probe()) {
++		case STM_8MBIT_SIGNATURE:
++			flash_size = 0x00100000;
++			break;
++		case STM_16MBIT_SIGNATURE:
++			flash_size = 0x00200000;
++			break;
++		case STM_32MBIT_SIGNATURE:
++			flash_size = 0x00400000;
++			break;
++		case STM_64MBIT_SIGNATURE:
++			flash_size = 0x00800000;
++			break;
++		case STM_128MBIT_SIGNATURE:
++			flash_size = 0x01000000;
++			break;
++	}
++
++	ar2315_spiflash_res[0].end = ar2315_spiflash_res[0].start +
++		flash_size - 1;
++	return (u8 *) ar2315_spiflash_res[0].end + 1;
++}
++
++#ifdef CONFIG_LEDS_GPIO
++static struct gpio_led ar2315_leds[6];
++static struct gpio_led_platform_data ar2315_led_data = {
++	.leds = (void *) ar2315_leds,
++};
++
++static struct platform_device ar2315_gpio_leds = {
++	.name = "leds-gpio",
++	.id = -1,
++	.dev = {
++		.platform_data = (void *) &ar2315_led_data,
++	}
++};
++
++static void __init
++ar2315_init_gpio(void)
++{
++	static char led_names[6][6];
++	int i, led = 0;
++
++	ar2315_led_data.num_leds = 0;
++	for(i = 1; i < 8; i++)
++	{
++		if((i == AR2315_RESET_GPIO) ||
++		   (i == ar231x_board.config->resetConfigGpio))
++			continue;
++
++		if(i == ar231x_board.config->sysLedGpio)
++			strcpy(led_names[led], "wlan");
++		else
++			sprintf(led_names[led], "gpio%d", i);
++
++		ar2315_leds[led].name = led_names[led];
++		ar2315_leds[led].gpio = i;
++		ar2315_leds[led].active_low = 0;
++		led++;
++	}
++	ar2315_led_data.num_leds = led;
++	platform_device_register(&ar2315_gpio_leds);
++}
++#else
++static inline void ar2315_init_gpio(void)
++{
++}
++#endif
++
++int __init
++ar2315_init_devices(void)
++{
++	if (!is_2315())
++		return 0;
++
++	/* Find board configuration */
++	ar231x_find_config(ar2315_flash_limit());
++	ar2315_eth_data.macaddr = ar231x_board.config->enet0_mac;
++
++	ar2315_init_gpio();
++	platform_device_register(&ar2315_wdt);
++	platform_device_register(&ar2315_spiflash);
++	ar231x_add_ethernet(0, AR2315_ENET0, AR2315_IRQ_ENET0_INTRS,
++		&ar2315_eth_data);
++	ar231x_add_wmac(0, AR2315_WLAN0, AR2315_IRQ_WLAN0_INTRS);
++
++	return 0;
++}
++
++static void
++ar2315_restart(char *command)
++{
++	void (*mips_reset_vec)(void) = (void *) 0xbfc00000;
++
++	local_irq_disable();
++
++	/* try reset the system via reset control */
++	ar231x_write_reg(AR2315_COLD_RESET,AR2317_RESET_SYSTEM);
++
++	/* Cold reset does not work on the AR2315/6, use the GPIO reset bits a workaround.
++	 * give it some time to attempt a gpio based hardware reset
++	 * (atheros reference design workaround) */
++	gpio_direction_output(AR2315_RESET_GPIO, 0);
++	mdelay(100);
++
++	/* Some boards (e.g. Senao EOC-2610) don't implement the reset logic
++	 * workaround. Attempt to jump to the mips reset location -
++	 * the boot loader itself might be able to recover the system */
++	mips_reset_vec();
++}
++
++
++/*
++ * This table is indexed by bits 5..4 of the CLOCKCTL1 register
++ * to determine the predevisor value.
++ */
++static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = { 1, 2, 4, 5 };
++static int __initdata PLLC_DIVIDE_TABLE[5] = { 2, 3, 4, 6, 3 };
++
++static unsigned int __init
++ar2315_sys_clk(unsigned int clockCtl)
++{
++    unsigned int pllcCtrl,cpuDiv;
++    unsigned int pllcOut,refdiv,fdiv,divby2;
++	unsigned int clkDiv;
++
++    pllcCtrl = ar231x_read_reg(AR2315_PLLC_CTL);
++    refdiv = (pllcCtrl & PLLC_REF_DIV_M) >> PLLC_REF_DIV_S;
++    refdiv = CLOCKCTL1_PREDIVIDE_TABLE[refdiv];
++    fdiv = (pllcCtrl & PLLC_FDBACK_DIV_M) >> PLLC_FDBACK_DIV_S;
++    divby2 = (pllcCtrl & PLLC_ADD_FDBACK_DIV_M) >> PLLC_ADD_FDBACK_DIV_S;
++    divby2 += 1;
++    pllcOut = (40000000/refdiv)*(2*divby2)*fdiv;
++
++
++    /* clkm input selected */
++	switch(clockCtl & CPUCLK_CLK_SEL_M) {
++		case 0:
++		case 1:
++			clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKM_DIV_M) >> PLLC_CLKM_DIV_S];
++			break;
++		case 2:
++			clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKC_DIV_M) >> PLLC_CLKC_DIV_S];
++			break;
++		default:
++			pllcOut = 40000000;
++			clkDiv = 1;
++			break;
++	}
++	cpuDiv = (clockCtl & CPUCLK_CLK_DIV_M) >> CPUCLK_CLK_DIV_S;
++	cpuDiv = cpuDiv * 2 ?: 1;
++	return (pllcOut/(clkDiv * cpuDiv));
++}
++
++static inline unsigned int
++ar2315_cpu_frequency(void)
++{
++    return ar2315_sys_clk(ar231x_read_reg(AR2315_CPUCLK));
++}
++
++static inline unsigned int
++ar2315_apb_frequency(void)
++{
++    return ar2315_sys_clk(ar231x_read_reg(AR2315_AMBACLK));
++}
++
++void __init
++ar2315_time_init(void)
++{
++	if (!is_2315())
++		return;
++
++	mips_hpt_frequency = ar2315_cpu_frequency() / 2;
++}
++
++void __init
++ar2315_prom_init(void)
++{
++	u32 memsize, memcfg, devid;
++
++	if (!is_2315())
++		return;
++
++	memcfg = ar231x_read_reg(AR2315_MEM_CFG);
++	memsize   = 1 + ((memcfg & SDRAM_DATA_WIDTH_M) >> SDRAM_DATA_WIDTH_S);
++	memsize <<= 1 + ((memcfg & SDRAM_COL_WIDTH_M) >> SDRAM_COL_WIDTH_S);
++	memsize <<= 1 + ((memcfg & SDRAM_ROW_WIDTH_M) >> SDRAM_ROW_WIDTH_S);
++	memsize <<= 3;
++	add_memory_region(0, memsize, BOOT_MEM_RAM);
++
++	/* Detect the hardware based on the device ID */
++	devid = ar231x_read_reg(AR2315_SREV) & AR2315_REV_CHIP;
++	switch(devid) {
++		case 0x90:
++		case 0x91:
++			ar231x_devtype = DEV_TYPE_AR2317;
++			break;
++		default:
++			ar231x_devtype = DEV_TYPE_AR2315;
++			break;
++	}
++	ar231x_gpiodev = &ar2315_gpiodev;
++	ar231x_board.devid = devid;
++}
++
++void __init
++ar2315_plat_setup(void)
++{
++	u32 config;
++
++	if (!is_2315())
++		return;
++
++	/* Clear any lingering AHB errors */
++	config = read_c0_config();
++	write_c0_config(config & ~0x3);
++	ar231x_write_reg(AR2315_AHB_ERR0,AHB_ERROR_DET);
++	ar231x_read_reg(AR2315_AHB_ERR1);
++	ar231x_write_reg(AR2315_WDC, AR2315_WDC_IGNORE_EXPIRATION);
++
++	_machine_restart = ar2315_restart;
++	ar231x_serial_setup(KSEG1ADDR(AR2315_UART0), ar2315_apb_frequency());
++}
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/ar2315.h linux-2.6.37/arch/mips/ar231x/ar2315.h
+--- linux-2.6.37.orig/arch/mips/ar231x/ar2315.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/ar2315.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,37 @@
++#ifndef __AR2315_H
++#define __AR2315_H
++
++#ifdef CONFIG_ATHEROS_AR2315
++
++extern void ar2315_irq_init(void);
++extern int ar2315_init_devices(void);
++extern void ar2315_prom_init(void);
++extern void ar2315_plat_setup(void);
++extern void ar2315_time_init(void);
++
++#else
++
++static inline void ar2315_irq_init(void)
++{
++}
++
++static inline int ar2315_init_devices(void)
++{
++	return 0;
++}
++
++static inline void ar2315_prom_init(void)
++{
++}
++
++static inline void ar2315_plat_setup(void)
++{
++}
++
++static inline void ar2315_time_init(void)
++{
++}
++
++#endif
++
++#endif
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/ar5312.c linux-2.6.37/arch/mips/ar231x/ar5312.c
+--- linux-2.6.37.orig/arch/mips/ar231x/ar5312.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/ar5312.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,549 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * Platform devices for Atheros SoCs
++ */
++
++#include <generated/autoconf.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/string.h>
++#include <linux/mtd/physmap.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/reboot.h>
++#include <linux/leds.h>
++#include <asm/bootinfo.h>
++#include <asm/reboot.h>
++#include <asm/time.h>
++#include <asm/irq.h>
++#include <asm/io.h>
++#include <gpio.h>
++
++#include <ar231x_platform.h>
++#include <ar5312_regs.h>
++#include <ar231x.h>
++#include "devices.h"
++#include "ar5312.h"
++
++static void
++ar5312_misc_irq_dispatch(void)
++{
++	unsigned int ar231x_misc_intrs = ar231x_read_reg(AR531X_ISR) & ar231x_read_reg(AR531X_IMR);
++
++	if (ar231x_misc_intrs & AR531X_ISR_TIMER) {
++		do_IRQ(AR531X_MISC_IRQ_TIMER);
++		(void)ar231x_read_reg(AR531X_TIMER);
++	} else if (ar231x_misc_intrs & AR531X_ISR_AHBPROC)
++		do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
++	else if ((ar231x_misc_intrs & AR531X_ISR_UART0))
++		do_IRQ(AR531X_MISC_IRQ_UART0);
++	else if (ar231x_misc_intrs & AR531X_ISR_WD)
++		do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
++	else
++		do_IRQ(AR531X_MISC_IRQ_NONE);
++}
++
++static asmlinkage void
++ar5312_irq_dispatch(void)
++{
++	int pending = read_c0_status() & read_c0_cause();
++
++	if (pending & CAUSEF_IP2)
++		do_IRQ(AR5312_IRQ_WLAN0_INTRS);
++	else if (pending & CAUSEF_IP3)
++		do_IRQ(AR5312_IRQ_ENET0_INTRS);
++	else if (pending & CAUSEF_IP4)
++		do_IRQ(AR5312_IRQ_ENET1_INTRS);
++	else if (pending & CAUSEF_IP5)
++		do_IRQ(AR5312_IRQ_WLAN1_INTRS);
++	else if (pending & CAUSEF_IP6)
++		ar5312_misc_irq_dispatch();
++	else if (pending & CAUSEF_IP7)
++		do_IRQ(AR531X_IRQ_CPU_CLOCK);
++}
++
++
++/* Enable the specified AR531X_MISC_IRQ interrupt */
++static void
++ar5312_misc_intr_enable(unsigned int irq)
++{
++	unsigned int imr;
++
++	imr = ar231x_read_reg(AR531X_IMR);
++	imr |= (1 << (irq - AR531X_MISC_IRQ_BASE - 1));
++	ar231x_write_reg(AR531X_IMR, imr);
++}
++
++/* Disable the specified AR531X_MISC_IRQ interrupt */
++static void
++ar5312_misc_intr_disable(unsigned int irq)
++{
++	unsigned int imr;
++
++	imr = ar231x_read_reg(AR531X_IMR);
++	imr &= ~(1 << (irq - AR531X_MISC_IRQ_BASE - 1));
++	ar231x_write_reg(AR531X_IMR, imr);
++	ar231x_read_reg(AR531X_IMR); /* flush write buffer */
++}
++
++static void
++ar5312_misc_intr_end(unsigned int irq)
++{
++	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
++		ar5312_misc_intr_enable(irq);
++}
++
++static struct irq_chip ar5312_misc_intr_controller = {
++	.name     = "AR5312-MISC",
++	.disable  = ar5312_misc_intr_disable,
++	.ack      = ar5312_misc_intr_disable,
++	.mask_ack = ar5312_misc_intr_disable,
++	.mask     = ar5312_misc_intr_disable,
++	.unmask   = ar5312_misc_intr_enable,
++	.end      = ar5312_misc_intr_end,
++};
++
++
++static irqreturn_t ar5312_ahb_proc_handler(int cpl, void *dev_id)
++{
++	u32 proc1 = ar231x_read_reg(AR531X_PROC1);
++	u32 procAddr = ar231x_read_reg(AR531X_PROCADDR); /* clears error state */
++	u32 dma1 = ar231x_read_reg(AR531X_DMA1);
++	u32 dmaAddr = ar231x_read_reg(AR531X_DMAADDR);   /* clears error state */
++
++	printk("AHB interrupt: PROCADDR=0x%8.8x  PROC1=0x%8.8x  DMAADDR=0x%8.8x  DMA1=0x%8.8x\n",
++			procAddr, proc1, dmaAddr, dma1);
++
++	machine_restart("AHB error"); /* Catastrophic failure */
++	return IRQ_HANDLED;
++}
++
++
++static struct irqaction ar5312_ahb_proc_interrupt  = {
++	.handler = ar5312_ahb_proc_handler,
++	.flags   = IRQF_DISABLED,
++	.name    = "ar5312_ahb_proc_interrupt",
++};
++
++
++static struct irqaction cascade  = {
++	.handler = no_action,
++	.flags   = IRQF_DISABLED,
++	.name    = "cascade",
++};
++
++void __init ar5312_irq_init(void)
++{
++	int i;
++
++	if (!is_5312())
++		return;
++
++	ar231x_irq_dispatch = ar5312_irq_dispatch;
++	for (i = 0; i < AR531X_MISC_IRQ_COUNT; i++) {
++		int irq = AR531X_MISC_IRQ_BASE + i;
++		set_irq_chip_and_handler(irq, &ar5312_misc_intr_controller,
++			handle_level_irq);
++	}
++	setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar5312_ahb_proc_interrupt);
++	setup_irq(AR5312_IRQ_MISC_INTRS, &cascade);
++}
++
++const struct ar231x_gpiodev ar5312_gpiodev;
++
++static u32
++ar5312_gpio_get_output(void)
++{
++	u32 reg;
++	reg = ~(ar231x_read_reg(AR531X_GPIO_CR));
++	reg &= ar5312_gpiodev.valid_mask;
++	return reg;
++}
++
++static u32
++ar5312_gpio_set_output(u32 mask, u32 val)
++{
++	u32 reg;
++
++	reg = ar231x_read_reg(AR531X_GPIO_CR);
++	reg |= mask;
++	reg &= ~val;
++	ar231x_write_reg(AR531X_GPIO_CR, reg);
++	return reg;
++}
++
++static u32
++ar5312_gpio_get(void)
++{
++	u32 reg;
++	reg = ar231x_read_reg(AR531X_GPIO_DI);
++	reg &= ar5312_gpiodev.valid_mask;
++	return reg;
++}
++
++static u32
++ar5312_gpio_set(u32 mask, u32 value)
++{
++	u32 reg;
++	reg = ar231x_read_reg(AR531X_GPIO_DO);
++	reg &= ~mask;
++	reg |= value;
++	ar231x_write_reg(AR531X_GPIO_DO, reg);
++	return reg;
++}
++
++const struct ar231x_gpiodev ar5312_gpiodev = {
++	.valid_mask = (1 << 8) - 1,
++	.get_output = ar5312_gpio_get_output,
++	.set_output = ar5312_gpio_set_output,
++	.get = ar5312_gpio_get,
++	.set = ar5312_gpio_set,
++};
++
++static struct physmap_flash_data ar5312_flash_data = {
++	.width = 2,
++};
++
++static struct resource ar5312_flash_resource = {
++	.start = AR531X_FLASH,
++	.end = AR531X_FLASH + 0x800000 - 1,
++	.flags = IORESOURCE_MEM,
++};
++
++static struct ar231x_eth ar5312_eth0_data = {
++	.reset_base = AR531X_RESET,
++	.reset_mac = AR531X_RESET_ENET0,
++	.reset_phy = AR531X_RESET_EPHY0,
++	.phy_base = KSEG1ADDR(AR531X_ENET0),
++	.config = &ar231x_board,
++};
++
++static struct ar231x_eth ar5312_eth1_data = {
++	.reset_base = AR531X_RESET,
++	.reset_mac = AR531X_RESET_ENET1,
++	.reset_phy = AR531X_RESET_EPHY1,
++	.phy_base = KSEG1ADDR(AR531X_ENET1),
++	.config = &ar231x_board,
++};
++
++static struct platform_device ar5312_physmap_flash = {
++	.name = "physmap-flash",
++	.id = 0,
++	.dev.platform_data = &ar5312_flash_data,
++	.resource = &ar5312_flash_resource,
++	.num_resources = 1,
++};
++
++#ifdef CONFIG_LEDS_GPIO
++static struct gpio_led ar5312_leds[] = {
++	{ .name = "wlan", .gpio = 0, .active_low = 1, },
++};
++
++static const struct gpio_led_platform_data ar5312_led_data = {
++	.num_leds = ARRAY_SIZE(ar5312_leds),
++	.leds = (void *) ar5312_leds,
++};
++
++static struct platform_device ar5312_gpio_leds = {
++	.name = "leds-gpio",
++	.id = -1,
++	.dev.platform_data = (void *) &ar5312_led_data,
++};
++#endif
++
++/*
++ * NB: This mapping size is larger than the actual flash size,
++ * but this shouldn't be a problem here, because the flash
++ * will simply be mapped multiple times.
++ */
++static char __init *ar5312_flash_limit(void)
++{
++	u32 ctl;
++	/*
++	 * Configure flash bank 0.
++	 * Assume 8M window size. Flash will be aliased if it's smaller
++	 */
++	ctl = FLASHCTL_E |
++		FLASHCTL_AC_8M |
++		FLASHCTL_RBLE |
++		(0x01 << FLASHCTL_IDCY_S) |
++		(0x07 << FLASHCTL_WST1_S) |
++		(0x07 << FLASHCTL_WST2_S) |
++		(ar231x_read_reg(AR531X_FLASHCTL0) & FLASHCTL_MW);
++
++	ar231x_write_reg(AR531X_FLASHCTL0, ctl);
++
++	/* Disable other flash banks */
++	ar231x_write_reg(AR531X_FLASHCTL1,
++		ar231x_read_reg(AR531X_FLASHCTL1) & ~(FLASHCTL_E | FLASHCTL_AC));
++
++	ar231x_write_reg(AR531X_FLASHCTL2,
++		ar231x_read_reg(AR531X_FLASHCTL2) & ~(FLASHCTL_E | FLASHCTL_AC));
++
++	return (char *) KSEG1ADDR(AR531X_FLASH + 0x800000);
++}
++
++int __init ar5312_init_devices(void)
++{
++	struct ar231x_boarddata *config;
++	u32 fctl = 0;
++	const u8 *radio;
++	u8 *c;
++
++	if (!is_5312())
++		return 0;
++
++	/* Locate board/radio config data */
++	ar231x_find_config(ar5312_flash_limit());
++	config = ar231x_board.config;
++
++
++	/*
++	 * Chip IDs and hardware detection for some Atheros
++	 * models are really broken!
++	 *
++	 * Atheros uses a disabled WMAC0 and Silicon ID of AR5312
++	 * as indication for AR2312, which is otherwise
++	 * indistinguishable from the real AR5312.
++	 */
++	if (ar231x_board.radio) {
++		radio = ar231x_board.radio + AR531X_RADIO_MASK_OFF;
++		if ((*((const u32 *) radio) & AR531X_RADIO0_MASK) == 0)
++			config->flags |= BD_ISCASPER;
++	} else
++		radio = NULL;
++
++	/* AR2313 has CPU minor rev. 10 */
++	if ((current_cpu_data.processor_id & 0xff) == 0x0a)
++		ar231x_devtype = DEV_TYPE_AR2313;
++
++	/* AR2312 shares the same Silicon ID as AR5312 */
++	else if (config->flags & BD_ISCASPER)
++		ar231x_devtype = DEV_TYPE_AR2312;
++
++	/* Everything else is probably AR5312 or compatible */
++	else
++		ar231x_devtype = DEV_TYPE_AR5312;
++
++	/* fixup flash width */
++	fctl = ar231x_read_reg(AR531X_FLASHCTL) & FLASHCTL_MW;
++	switch (fctl) {
++	case FLASHCTL_MWx16:
++		ar5312_flash_data.width = 2;
++		break;
++	case FLASHCTL_MWx8:
++	default:
++		ar5312_flash_data.width = 1;
++		break;
++	}
++
++	platform_device_register(&ar5312_physmap_flash);
++
++#ifdef CONFIG_LEDS_GPIO
++	ar5312_leds[0].gpio = config->sysLedGpio;
++	platform_device_register(&ar5312_gpio_leds);
++#endif
++
++	/* Fix up MAC addresses if necessary */
++	if (!memcmp(config->enet0_mac, "\xff\xff\xff\xff\xff\xff", 6))
++		memcpy(config->enet0_mac, config->enet1_mac, 6);
++
++	/* If ENET0 and ENET1 have the same mac address,
++	 * increment the one from ENET1 */
++	if (memcmp(config->enet0_mac, config->enet1_mac, 6) == 0) {
++		c = config->enet1_mac + 5;
++		while ((c >= config->enet1_mac) && !(++(*c)))
++			c--;
++	}
++
++	switch(ar231x_devtype) {
++	case DEV_TYPE_AR5312:
++		ar5312_eth0_data.macaddr = config->enet0_mac;
++		ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET0),
++			AR5312_IRQ_ENET0_INTRS, &ar5312_eth0_data);
++
++		ar5312_eth1_data.macaddr = config->enet1_mac;
++		ar231x_add_ethernet(1, KSEG1ADDR(AR531X_ENET1),
++			AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data);
++
++		if (!ar231x_board.radio)
++			return 0;
++
++		if ((*((u32 *) radio) & AR531X_RADIO0_MASK) &&
++		    (config->flags & BD_WLAN0))
++			ar231x_add_wmac(0, AR531X_WLAN0,
++				AR5312_IRQ_WLAN0_INTRS);
++
++		break;
++	/*
++	 * AR2312/3 ethernet uses the PHY of ENET0, but the MAC
++	 * of ENET1. Atheros calls it 'twisted' for a reason :)
++	 */
++	case DEV_TYPE_AR2312:
++	case DEV_TYPE_AR2313:
++		ar5312_eth1_data.phy_base = ar5312_eth0_data.phy_base;
++		ar5312_eth1_data.reset_phy = ar5312_eth0_data.reset_phy;
++		ar5312_eth1_data.macaddr = config->enet0_mac;
++		ar231x_add_ethernet(0, KSEG1ADDR(AR531X_ENET1),
++			AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data);
++
++		if (!ar231x_board.radio)
++			return 0;
++		break;
++	default:
++		break;
++	}
++
++	if ((*((u32 *) radio) & AR531X_RADIO1_MASK) &&
++	    (config->flags & BD_WLAN1))
++		ar231x_add_wmac(1, AR531X_WLAN1,
++			AR5312_IRQ_WLAN1_INTRS);
++
++	return 0;
++}
++
++
++static void ar5312_restart(char *command)
++{
++	/* reset the system */
++	local_irq_disable();
++	while(1) {
++		ar231x_write_reg(AR531X_RESET, AR531X_RESET_SYSTEM);
++	}
++}
++
++
++/*
++ * This table is indexed by bits 5..4 of the CLOCKCTL1 register
++ * to determine the predevisor value.
++ */
++static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = { 1, 2, 4, 5 };
++
++
++static int __init
++ar5312_cpu_frequency(void)
++{
++	unsigned int result;
++	unsigned int predivide_mask, predivide_shift;
++	unsigned int multiplier_mask, multiplier_shift;
++	unsigned int clockCtl1, preDivideSelect, preDivisor, multiplier;
++	unsigned int doubler_mask;
++	u16 devid;
++
++	/* Trust the bootrom's idea of cpu frequency. */
++	if ((result = ar231x_read_reg(AR5312_SCRATCH)))
++		return result;
++
++	devid = ar231x_read_reg(AR531X_REV);
++	devid &= AR531X_REV_MAJ;
++	devid >>= AR531X_REV_MAJ_S;
++	if (devid == AR531X_REV_MAJ_AR2313) {
++		predivide_mask = AR2313_CLOCKCTL1_PREDIVIDE_MASK;
++		predivide_shift = AR2313_CLOCKCTL1_PREDIVIDE_SHIFT;
++		multiplier_mask = AR2313_CLOCKCTL1_MULTIPLIER_MASK;
++		multiplier_shift = AR2313_CLOCKCTL1_MULTIPLIER_SHIFT;
++		doubler_mask = AR2313_CLOCKCTL1_DOUBLER_MASK;
++	} else { /* AR5312 and AR2312 */
++		predivide_mask = AR5312_CLOCKCTL1_PREDIVIDE_MASK;
++		predivide_shift = AR5312_CLOCKCTL1_PREDIVIDE_SHIFT;
++		multiplier_mask = AR5312_CLOCKCTL1_MULTIPLIER_MASK;
++		multiplier_shift = AR5312_CLOCKCTL1_MULTIPLIER_SHIFT;
++		doubler_mask = AR5312_CLOCKCTL1_DOUBLER_MASK;
++	}
++
++	/*
++	 * Clocking is derived from a fixed 40MHz input clock.
++	 *
++	 *  cpuFreq = InputClock * MULT (where MULT is PLL multiplier)
++	 *  sysFreq = cpuFreq / 4	   (used for APB clock, serial,
++	 *							   flash, Timer, Watchdog Timer)
++	 *
++	 *  cntFreq = cpuFreq / 2	   (use for CPU count/compare)
++	 *
++	 * So, for example, with a PLL multiplier of 5, we have
++	 *
++	 *  cpuFreq = 200MHz
++	 *  sysFreq = 50MHz
++	 *  cntFreq = 100MHz
++	 *
++	 * We compute the CPU frequency, based on PLL settings.
++	 */
++
++	clockCtl1 = ar231x_read_reg(AR5312_CLOCKCTL1);
++	preDivideSelect = (clockCtl1 & predivide_mask) >> predivide_shift;
++	preDivisor = CLOCKCTL1_PREDIVIDE_TABLE[preDivideSelect];
++	multiplier = (clockCtl1 & multiplier_mask) >> multiplier_shift;
++
++	if (clockCtl1 & doubler_mask) {
++		multiplier = multiplier << 1;
++	}
++	return (40000000 / preDivisor) * multiplier;
++}
++
++static inline int
++ar5312_sys_frequency(void)
++{
++	return ar5312_cpu_frequency() / 4;
++}
++
++void __init
++ar5312_time_init(void)
++{
++	if (!is_5312())
++		return;
++
++	mips_hpt_frequency = ar5312_cpu_frequency() / 2;
++}
++
++
++void __init
++ar5312_prom_init(void)
++{
++	u32 memsize, memcfg, bank0AC, bank1AC;
++	u32 devid;
++
++	if (!is_5312())
++		return;
++
++	/* Detect memory size */
++	memcfg = ar231x_read_reg(AR531X_MEM_CFG1);
++	bank0AC = (memcfg & MEM_CFG1_AC0) >> MEM_CFG1_AC0_S;
++	bank1AC = (memcfg & MEM_CFG1_AC1) >> MEM_CFG1_AC1_S;
++	memsize = (bank0AC ? (1 << (bank0AC+1)) : 0)
++	        + (bank1AC ? (1 << (bank1AC+1)) : 0);
++	memsize <<= 20;
++	add_memory_region(0, memsize, BOOT_MEM_RAM);
++
++	devid = ar231x_read_reg(AR531X_REV);
++	devid >>= AR531X_REV_WMAC_MIN_S;
++	devid &= AR531X_REV_CHIP;
++	ar231x_board.devid = (u16) devid;
++	ar231x_gpiodev = &ar5312_gpiodev;
++}
++
++void __init
++ar5312_plat_setup(void)
++{
++	if (!is_5312())
++		return;
++
++	/* Clear any lingering AHB errors */
++	ar231x_read_reg(AR531X_PROCADDR);
++	ar231x_read_reg(AR531X_DMAADDR);
++	ar231x_write_reg(AR531X_WD_CTRL, AR531X_WD_CTRL_IGNORE_EXPIRATION);
++
++	_machine_restart = ar5312_restart;
++	ar231x_serial_setup(KSEG1ADDR(AR531X_UART0), ar5312_sys_frequency());
++}
++
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/ar5312.h linux-2.6.37/arch/mips/ar231x/ar5312.h
+--- linux-2.6.37.orig/arch/mips/ar231x/ar5312.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/ar5312.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,38 @@
++#ifndef __AR5312_H
++#define __AR5312_H
++
++#ifdef CONFIG_ATHEROS_AR5312
++
++extern void ar5312_irq_init(void);
++extern int ar5312_init_devices(void);
++extern void ar5312_prom_init(void);
++extern void ar5312_plat_setup(void);
++extern void ar5312_time_init(void);
++extern void ar5312_time_init(void);
++
++#else
++
++static inline void ar5312_irq_init(void)
++{
++}
++
++static inline int ar5312_init_devices(void)
++{
++	return 0;
++}
++
++static inline void ar5312_prom_init(void)
++{
++}
++
++static inline void ar5312_plat_setup(void)
++{
++}
++
++static inline void ar5312_time_init(void)
++{
++}
++
++#endif
++
++#endif
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/board.c linux-2.6.37/arch/mips/ar231x/board.c
+--- linux-2.6.37.orig/arch/mips/ar231x/board.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/board.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,251 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++ */
++
++#include <generated/autoconf.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/string.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/random.h>
++#include <linux/etherdevice.h>
++#include <asm/irq_cpu.h>
++#include <asm/reboot.h>
++#include <asm/io.h>
++
++#include <ar231x_platform.h>
++#include "devices.h"
++#include "ar5312.h"
++#include "ar2315.h"
++
++void (*ar231x_irq_dispatch)(void);
++
++static inline bool
++check_radio_magic(u8 *addr)
++{
++	addr += 0x7a; /* offset for flash magic */
++	if ((addr[0] == 0x5a) && (addr[1] == 0xa5)) {
++		return 1;
++	}
++	return 0;
++}
++
++static inline bool
++check_board_data(u8 *flash_limit, u8 *addr, bool broken)
++{
++	/* config magic found */
++	if (*((u32 *)addr) == AR531X_BD_MAGIC)
++		return 1;
++
++	if (!broken)
++		return 0;
++
++	if (check_radio_magic(addr + 0xf8))
++		ar231x_board.radio = addr + 0xf8;
++	if ((addr < flash_limit + 0x10000) &&
++	     check_radio_magic(addr + 0x10000))
++		ar231x_board.radio = addr + 0x10000;
++
++	if (ar231x_board.radio) {
++		/* broken board data detected, use radio data to find the offset,
++		 * user will fix this */
++		return 1;
++	}
++	return 0;
++}
++
++static u8 *
++find_board_config(u8 *flash_limit, bool broken)
++{
++	u8 *addr;
++	int found = 0;
++
++	for (addr = flash_limit - 0x1000;
++		addr >= flash_limit - 0x30000;
++		addr -= 0x1000) {
++
++		if (check_board_data(flash_limit, addr, broken)) {
++			found = 1;
++			break;
++		}
++	}
++
++	if (!found)
++		addr = NULL;
++
++	return addr;
++}
++
++static u8 *
++find_radio_config(u8 *flash_limit, u8 *board_config)
++{
++	int found;
++	u8 *radio_config;
++
++	/*
++	 * Now find the start of Radio Configuration data, using heuristics:
++	 * Search forward from Board Configuration data by 0x1000 bytes
++	 * at a time until we find non-0xffffffff.
++	 */
++	found = 0;
++	for (radio_config = board_config + 0x1000;
++	     (radio_config < flash_limit);
++	     radio_config += 0x1000) {
++		if ((*(u32 *)radio_config != 0xffffffff) &&
++		    check_radio_magic(radio_config)) {
++			found = 1;
++			break;
++		}
++	}
++
++	/* AR2316 relocates radio config to new location */
++	if (!found) {
++	    for (radio_config = board_config + 0xf8;
++			(radio_config < flash_limit - 0x1000 + 0xf8);
++			 radio_config += 0x1000) {
++			if ((*(u32 *)radio_config != 0xffffffff) &&
++				check_radio_magic(radio_config)) {
++				found = 1;
++				break;
++			}
++	    }
++	}
++
++	if (!found) {
++		printk("Could not find Radio Configuration data\n");
++		radio_config = 0;
++	}
++
++	return (u8 *) radio_config;
++}
++
++int __init
++ar231x_find_config(u8 *flash_limit)
++{
++	struct ar231x_boarddata *config;
++	unsigned int rcfg_size;
++	int broken_boarddata = 0;
++	u8 *bcfg, *rcfg;
++	u8 *board_data;
++	u8 *radio_data;
++	u32 offset;
++
++	ar231x_board.config = NULL;
++	ar231x_board.radio = NULL;
++	/* Copy the board and radio data to RAM, because accessing the mapped
++	 * memory of the flash directly after booting is not safe */
++
++	/* Try to find valid board and radio data */
++	bcfg = find_board_config(flash_limit, false);
++
++	/* If that fails, try to at least find valid radio data */
++	if (!bcfg) {
++		bcfg = find_board_config(flash_limit, true);
++		broken_boarddata = 1;
++	}
++
++	if (!bcfg) {
++		printk(KERN_WARNING "WARNING: No board configuration data found!\n");
++		return -ENODEV;
++	}
++
++	board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
++	ar231x_board.config = (struct ar231x_boarddata *) board_data;
++	memcpy(board_data, bcfg, 0x100);
++	if (broken_boarddata) {
++		printk(KERN_WARNING "WARNING: broken board data detected\n");
++		config = ar231x_board.config;
++		if (!memcmp(config->enet0_mac, "\x00\x00\x00\x00\x00\x00", 6)) {
++			printk(KERN_INFO "Fixing up empty mac addresses\n");
++			config->resetConfigGpio = 0xffff;
++			config->sysLedGpio = 0xffff;
++			random_ether_addr(config->wlan0_mac);
++			config->wlan0_mac[0] &= ~0x06;
++			random_ether_addr(config->enet0_mac);
++			random_ether_addr(config->enet1_mac);
++		}
++	}
++
++
++	/* Radio config starts 0x100 bytes after board config, regardless
++	 * of what the physical layout on the flash chip looks like */
++
++	if (ar231x_board.radio)
++		rcfg = (u8 *) ar231x_board.radio;
++	else
++		rcfg = find_radio_config(flash_limit, bcfg);
++
++	if (!rcfg)
++		return -ENODEV;
++
++	radio_data = board_data + 0x100 + ((rcfg - bcfg) & 0xfff);
++	ar231x_board.radio = radio_data;
++	offset = radio_data - board_data;
++	printk(KERN_INFO "Radio config found at offset 0x%x(0x%x)\n", rcfg - bcfg, offset);
++	rcfg_size = BOARD_CONFIG_BUFSZ - offset;
++	memcpy(radio_data, rcfg, rcfg_size);
++
++	return 0;
++}
++
++static void
++ar231x_halt(void)
++{
++	local_irq_disable();
++	while (1);
++}
++
++void __init
++plat_mem_setup(void)
++{
++	_machine_halt = ar231x_halt;
++	pm_power_off = ar231x_halt;
++
++	ar5312_plat_setup();
++	ar2315_plat_setup();
++
++	/* Disable data watchpoints */
++	write_c0_watchlo0(0);
++}
++
++
++asmlinkage void
++plat_irq_dispatch(void)
++{
++	ar231x_irq_dispatch();
++}
++
++void __init
++plat_time_init(void)
++{
++	ar5312_time_init();
++	ar2315_time_init();
++}
++
++unsigned int __cpuinit
++get_c0_compare_int(void)
++{
++	return CP0_LEGACY_COMPARE_IRQ;
++}
++
++void __init
++arch_init_irq(void)
++{
++	clear_c0_status(ST0_IM);
++	mips_cpu_irq_init();
++
++	/* Initialize interrupt controllers */
++	ar5312_irq_init();
++	ar2315_irq_init();
++}
++
++
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/devices.c linux-2.6.37/arch/mips/ar231x/devices.c
+--- linux-2.6.37.orig/arch/mips/ar231x/devices.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/devices.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,175 @@
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/serial.h>
++#include <linux/serial_core.h>
++#include <linux/serial_8250.h>
++#include <linux/platform_device.h>
++#include <ar231x_platform.h>
++#include <ar231x.h>
++#include "devices.h"
++#include "ar5312.h"
++#include "ar2315.h"
++
++struct ar231x_board_config ar231x_board;
++int ar231x_devtype = DEV_TYPE_UNKNOWN;
++const struct ar231x_gpiodev *ar231x_gpiodev;
++EXPORT_SYMBOL(ar231x_gpiodev);
++
++static struct resource ar231x_eth0_res[] = {
++	{
++		.name = "eth0_membase",
++		.flags = IORESOURCE_MEM,
++	},
++	{
++		.name = "eth0_irq",
++		.flags = IORESOURCE_IRQ,
++	}
++};
++
++static struct resource ar231x_eth1_res[] = {
++	{
++		.name = "eth1_membase",
++		.flags = IORESOURCE_MEM,
++	},
++	{
++		.name = "eth1_irq",
++		.flags = IORESOURCE_IRQ,
++	}
++};
++
++static struct platform_device ar231x_eth[] = {
++	{
++		.id = 0,
++		.name = "ar231x-eth",
++		.resource = ar231x_eth0_res,
++		.num_resources = ARRAY_SIZE(ar231x_eth0_res)
++	},
++	{
++		.id = 1,
++		.name = "ar231x-eth",
++		.resource = ar231x_eth1_res,
++		.num_resources = ARRAY_SIZE(ar231x_eth1_res)
++	}
++};
++
++static struct resource ar231x_wmac0_res[] = {
++	{
++		.name = "wmac0_membase",
++		.flags = IORESOURCE_MEM,
++	},
++	{
++		.name = "wmac0_irq",
++		.flags = IORESOURCE_IRQ,
++	}
++};
++
++static struct resource ar231x_wmac1_res[] = {
++	{
++		.name = "wmac1_membase",
++		.flags = IORESOURCE_MEM,
++	},
++	{
++		.name = "wmac1_irq",
++		.flags = IORESOURCE_IRQ,
++	}
++};
++
++
++static struct platform_device ar231x_wmac[] = {
++	{
++		.id = 0,
++		.name = "ar231x-wmac",
++		.resource = ar231x_wmac0_res,
++		.num_resources = ARRAY_SIZE(ar231x_wmac0_res),
++		.dev.platform_data = &ar231x_board,
++	},
++	{
++		.id = 1,
++		.name = "ar231x-wmac",
++		.resource = ar231x_wmac1_res,
++		.num_resources = ARRAY_SIZE(ar231x_wmac1_res),
++		.dev.platform_data = &ar231x_board,
++	},
++};
++
++static const char *devtype_strings[] = {
++	[DEV_TYPE_AR5312] = "Atheros AR5312",
++	[DEV_TYPE_AR2312] = "Atheros AR2312",
++	[DEV_TYPE_AR2313] = "Atheros AR2313",
++	[DEV_TYPE_AR2315] = "Atheros AR2315",
++	[DEV_TYPE_AR2316] = "Atheros AR2316",
++	[DEV_TYPE_AR2317] = "Atheros AR2317",
++	[DEV_TYPE_UNKNOWN] = "Atheros (unknown)",
++};
++
++const char *get_system_type(void)
++{
++	if ((ar231x_devtype >= ARRAY_SIZE(devtype_strings)) ||
++		!devtype_strings[ar231x_devtype])
++		return devtype_strings[DEV_TYPE_UNKNOWN];
++	return devtype_strings[ar231x_devtype];
++}
++
++
++int __init
++ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata)
++{
++	struct resource *res;
++
++	ar231x_eth[nr].dev.platform_data = pdata;
++	res = &ar231x_eth[nr].resource[0];
++	res->start = base;
++	res->end = base + 0x2000 - 1;
++	res++;
++	res->start = irq;
++	res->end = irq;
++	return platform_device_register(&ar231x_eth[nr]);
++}
++
++void __init
++ar231x_serial_setup(u32 mapbase, unsigned int uartclk)
++{
++	struct uart_port s;
++
++	memset(&s, 0, sizeof(s));
++
++	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
++	s.iotype = UPIO_MEM;
++	s.irq = AR531X_MISC_IRQ_UART0;
++	s.regshift = 2;
++	s.mapbase = mapbase;
++	s.uartclk = uartclk;
++	s.membase = (void __iomem *)s.mapbase;
++
++	early_serial_setup(&s);
++}
++
++int __init
++ar231x_add_wmac(int nr, u32 base, int irq)
++{
++	struct resource *res;
++
++	ar231x_wmac[nr].dev.platform_data = &ar231x_board;
++	res = &ar231x_wmac[nr].resource[0];
++	res->start = base;
++	res->end = base + 0x10000 - 1;
++	res++;
++	res->start = irq;
++	res->end = irq;
++	return platform_device_register(&ar231x_wmac[nr]);
++}
++
++static int __init ar231x_register_devices(void)
++{
++	static struct resource res = {
++		.start = 0xFFFFFFFF,
++	};
++
++	platform_device_register_simple("GPIODEV", 0, &res, 1);
++	ar5312_init_devices();
++	ar2315_init_devices();
++
++	return 0;
++}
++
++device_initcall(ar231x_register_devices);
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/devices.h linux-2.6.37/arch/mips/ar231x/devices.h
+--- linux-2.6.37.orig/arch/mips/ar231x/devices.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/devices.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,37 @@
++#ifndef __AR231X_DEVICES_H
++#define __AR231X_DEVICES_H
++
++enum {
++	/* handled by ar5312.c */
++	DEV_TYPE_AR2312,
++	DEV_TYPE_AR2313,
++	DEV_TYPE_AR5312,
++
++	/* handled by ar2315.c */
++	DEV_TYPE_AR2315,
++	DEV_TYPE_AR2316,
++	DEV_TYPE_AR2317,
++
++	DEV_TYPE_UNKNOWN
++};
++
++extern int ar231x_devtype;
++extern struct ar231x_board_config ar231x_board;
++extern asmlinkage void (*ar231x_irq_dispatch)(void);
++
++extern int ar231x_find_config(u8 *flash_limit);
++extern void ar231x_serial_setup(u32 mapbase, unsigned int uartclk);
++extern int ar231x_add_wmac(int nr, u32 base, int irq);
++extern int ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata);
++
++static inline bool is_2315(void)
++{
++	return (current_cpu_data.cputype == CPU_4KEC);
++}
++
++static inline bool is_5312(void)
++{
++	return !is_2315();
++}
++
++#endif
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/early_printk.c linux-2.6.37/arch/mips/ar231x/early_printk.c
+--- linux-2.6.37.orig/arch/mips/ar231x/early_printk.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/early_printk.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,44 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
++ */
++
++#include <linux/mm.h>
++#include <linux/io.h>
++#include <linux/serial_reg.h>
++#include <asm/addrspace.h>
++
++#include <asm/mach-ar231x/ar2315_regs.h>
++#include <asm/mach-ar231x/ar5312_regs.h>
++#include "devices.h"
++
++static inline void prom_uart_wr(void __iomem *base, unsigned reg,
++				unsigned char ch)
++{
++	__raw_writeb(ch, base + 4 * reg);
++}
++
++static inline unsigned char prom_uart_rr(void __iomem *base, unsigned reg)
++{
++	return __raw_readb(base + 4 * reg);
++}
++
++void prom_putchar(unsigned char ch)
++{
++	static void __iomem *base;
++
++	if (unlikely(base == NULL)) {
++		if (is_2315())
++			base = (void __iomem *)(KSEG1ADDR(AR2315_UART0));
++		else
++			base = (void __iomem *)(KSEG1ADDR(AR531X_UART0));
++	}
++
++	while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0);
++	prom_uart_wr(base, UART_TX, ch);
++	while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0);
++}
++
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/pci.c linux-2.6.37/arch/mips/ar231x/pci.c
+--- linux-2.6.37.orig/arch/mips/ar231x/pci.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/pci.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,230 @@
++/*
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2
++ * of the License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
++ */
++
++#include <linux/types.h>
++#include <linux/pci.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/mm.h>
++#include <linux/spinlock.h>
++#include <linux/delay.h>
++#include <linux/irq.h>
++#include <asm/bootinfo.h>
++#include <asm/paccess.h>
++#include <asm/irq_cpu.h>
++#include <asm/io.h>
++#include <ar231x_platform.h>
++#include <ar231x.h>
++#include <ar2315_regs.h>
++#include "devices.h"
++
++#define AR531X_MEM_BASE    0x80800000UL
++#define AR531X_MEM_SIZE    0x00ffffffUL
++#define AR531X_IO_SIZE     0x00007fffUL
++
++static unsigned long configspace;
++
++static int config_access(int devfn, int where, int size, u32 *ptr, bool write)
++{
++	unsigned long flags;
++	int func = PCI_FUNC(devfn);
++	int dev = PCI_SLOT(devfn);
++	u32 value = 0;
++	int err = 0;
++	u32 addr;
++
++	if (((dev != 0) && (dev != 3)) || (func > 2))
++		return PCIBIOS_DEVICE_NOT_FOUND;
++
++	/* Select Configuration access */
++	local_irq_save(flags);
++	ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, 0, AR2315_PCIMISC_CFG_SEL);
++	mb();
++
++	addr = (u32) configspace + (1 << (13 + dev)) + (func << 8) + where;
++	if (size == 1)
++		addr ^= 0x3;
++	else if (size == 2)
++		addr ^= 0x2;
++
++	if (write) {
++		value = *ptr;
++		if (size == 1)
++			err = put_dbe(value, (u8 *) addr);
++		else if (size == 2)
++			err = put_dbe(value, (u16 *) addr);
++		else if (size == 4)
++			err = put_dbe(value, (u32 *) addr);
++	} else {
++		if (size == 1)
++			err = get_dbe(value, (u8 *) addr);
++		else if (size == 2)
++			err = get_dbe(value, (u16 *) addr);
++		else if (size == 4)
++			err = get_dbe(value, (u32 *) addr);
++		if (err)
++			*ptr = 0xffffffff;
++		else
++			*ptr = value;
++	}
++
++	/* Select Memory access */
++	ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_CFG_SEL, 0);
++	local_irq_restore(flags);
++
++	return (err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL);
++}
++
++static int ar231x_pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * value)
++{
++	return config_access(devfn, where, size, value, 0);
++}
++
++static int ar231x_pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
++{
++	return config_access(devfn, where, size, &value, 1);
++}
++
++struct pci_ops ar231x_pci_ops = {
++	.read	= ar231x_pci_read,
++	.write	= ar231x_pci_write,
++};
++
++static struct resource ar231x_mem_resource = {
++	.name	= "AR531x PCI MEM",
++	.start	= AR531X_MEM_BASE,
++	.end	= AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE - 1 + 0x4000000,
++	.flags	= IORESOURCE_MEM,
++};
++
++static struct resource ar231x_io_resource = {
++	.name	= "AR531x PCI I/O",
++	.start	= AR531X_MEM_BASE + AR531X_MEM_SIZE - AR531X_IO_SIZE,
++	.end	= AR531X_MEM_BASE + AR531X_MEM_SIZE - 1,
++	.flags	= IORESOURCE_IO,
++};
++
++struct pci_controller ar231x_pci_controller = {
++	.pci_ops		= &ar231x_pci_ops,
++	.mem_resource	= &ar231x_mem_resource,
++	.io_resource	= &ar231x_io_resource,
++	.mem_offset     = 0x00000000UL,
++	.io_offset      = 0x00000000UL,
++};
++
++int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
++{
++	return AR2315_IRQ_LCBUS_PCI;
++}
++
++int pcibios_plat_dev_init(struct pci_dev *dev)
++{
++	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 5);
++	pci_write_config_word(dev, 0x40, 0);
++
++	/* Clear any pending Abort or external Interrupts
++	 * and enable interrupt processing */
++	ar231x_mask_reg(AR2315_PCI_INTEN_REG, AR2315_PCI_INT_ENABLE, 0);
++	ar231x_write_reg(AR2315_PCI_INT_STATUS, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
++	ar231x_write_reg(AR2315_PCI_INT_MASK, (AR2315_PCI_ABORT_INT | AR2315_PCI_EXT_INT));
++	ar231x_mask_reg(AR2315_PCI_INTEN_REG, 0, AR2315_PCI_INT_ENABLE);
++
++	return 0;
++}
++
++static void
++ar2315_pci_fixup(struct pci_dev *dev)
++{
++	unsigned int devfn = dev->devfn;
++
++	if (dev->bus->number != 0)
++		return;
++
++	/* Only fix up the PCI host settings */
++	if ((PCI_SLOT(devfn) != 3) || (PCI_FUNC(devfn) != 0))
++		return;
++
++	/* Fix up MBARs */
++	pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, HOST_PCI_MBAR0);
++	pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, HOST_PCI_MBAR1);
++	pci_write_config_dword(dev, PCI_BASE_ADDRESS_2, HOST_PCI_MBAR2);
++	pci_write_config_dword(dev, PCI_COMMAND,
++		PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL |
++		PCI_COMMAND_INVALIDATE | PCI_COMMAND_PARITY | PCI_COMMAND_SERR |
++		PCI_COMMAND_FAST_BACK);
++}
++DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, ar2315_pci_fixup);
++
++static int __init
++ar2315_pci_init(void)
++{
++	u32 reg;
++
++	if (ar231x_devtype != DEV_TYPE_AR2315)
++		return -ENODEV;
++
++	configspace = (unsigned long) ioremap_nocache(0x80000000, 1*1024*1024); /* Remap PCI config space */
++	ar231x_pci_controller.io_map_base =
++		(unsigned long) ioremap_nocache(AR531X_MEM_BASE + AR531X_MEM_SIZE, AR531X_IO_SIZE);
++	set_io_port_base(ar231x_pci_controller.io_map_base); /* PCI I/O space */
++
++	reg = ar231x_mask_reg(AR2315_RESET, 0, AR2315_RESET_PCIDMA);
++	msleep(10);
++
++	reg &= ~AR2315_RESET_PCIDMA;
++	ar231x_write_reg(AR2315_RESET, reg);
++	msleep(10);
++
++	ar231x_mask_reg(AR2315_ENDIAN_CTL, 0,
++		AR2315_CONFIG_PCIAHB | AR2315_CONFIG_PCIAHB_BRIDGE);
++
++	ar231x_write_reg(AR2315_PCICLK, AR2315_PCICLK_PLLC_CLKM |
++		(AR2315_PCICLK_IN_FREQ_DIV_6 << AR2315_PCICLK_DIV_S));
++	ar231x_mask_reg(AR2315_AHB_ARB_CTL, 0, AR2315_ARB_PCI);
++	ar231x_mask_reg(AR2315_IF_CTL, AR2315_IF_PCI_CLK_MASK | AR2315_IF_MASK,
++		AR2315_IF_PCI | AR2315_IF_PCI_HOST | AR2315_IF_PCI_INTR |
++		 (AR2315_IF_PCI_CLK_OUTPUT_CLK << AR2315_IF_PCI_CLK_SHIFT));
++
++	/* Reset the PCI bus by setting bits 5-4 in PCI_MCFG */
++	ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
++		AR2315_PCIRST_LOW);
++	msleep(100);
++
++	/* Bring the PCI out of reset */
++	ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
++		AR2315_PCIRST_HIGH | AR2315_PCICACHE_DIS | 0x8);
++
++	ar231x_write_reg(AR2315_PCI_UNCACHE_CFG,
++			0x1E | /* 1GB uncached */
++			(1 << 5) | /* Enable uncached */
++			(0x2 << 30) /* Base: 0x80000000 */
++	);
++	ar231x_read_reg(AR2315_PCI_UNCACHE_CFG);
++
++	msleep(500);
++
++	/* dirty hack - anyone with a datasheet that knows the memory map ? */
++	ioport_resource.start = 0x10000000;
++	ioport_resource.end = 0xffffffff;
++	iomem_resource.start = 0x10000000;
++	iomem_resource.end = 0xffffffff;
++
++	register_pci_controller(&ar231x_pci_controller);
++
++	return 0;
++}
++
++arch_initcall(ar2315_pci_init);
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/prom.c linux-2.6.37/arch/mips/ar231x/prom.c
+--- linux-2.6.37.orig/arch/mips/ar231x/prom.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/prom.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,37 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright MontaVista Software Inc
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * Prom setup file for ar531x
++ */
++
++#include <linux/init.h>
++#include <generated/autoconf.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/bootmem.h>
++
++#include <asm/bootinfo.h>
++#include <asm/addrspace.h>
++#include "ar5312.h"
++#include "ar2315.h"
++
++void __init prom_init(void)
++{
++	ar5312_prom_init();
++	ar2315_prom_init();
++}
++
++void __init prom_free_prom_memory(void)
++{
++}
+diff -Nur linux-2.6.37.orig/arch/mips/ar231x/reset.c linux-2.6.37/arch/mips/ar231x/reset.c
+--- linux-2.6.37.orig/arch/mips/ar231x/reset.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/ar231x/reset.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,161 @@
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/timer.h>
++#include <linux/interrupt.h>
++#include <linux/kobject.h>
++#include <linux/workqueue.h>
++#include <linux/skbuff.h>
++#include <linux/netlink.h>
++#include <net/sock.h>
++#include <asm/uaccess.h>
++#include <ar231x_platform.h>
++#include <ar231x.h>
++#include <gpio.h>
++#include "devices.h"
++
++#define AR531X_RESET_GPIO_IRQ	(AR531X_GPIO_IRQ(ar231x_board.config->resetConfigGpio))
++
++struct event_t {
++	struct work_struct wq;
++	int set;
++	unsigned long jiffies;
++};
++
++static struct timer_list rst_button_timer;
++static unsigned long seen;
++
++struct sock *uevent_sock = NULL;
++EXPORT_SYMBOL_GPL(uevent_sock);
++extern u64 uevent_next_seqnum(void);
++
++static int no_release_workaround = 1;
++module_param(no_release_workaround, int, 0);
++
++static inline void
++add_msg(struct sk_buff *skb, char *msg)
++{
++	char *scratch;
++	scratch = skb_put(skb, strlen(msg) + 1);
++	sprintf(scratch, msg);
++}
++
++static void
++hotplug_button(struct work_struct *wq)
++{
++	struct sk_buff *skb;
++	struct event_t *event;
++	size_t len;
++	char *scratch, *s;
++	char buf[128];
++
++	event = container_of(wq, struct event_t, wq);
++	if (!uevent_sock)
++		goto done;
++
++	/* allocate message with the maximum possible size */
++	s = event->set ? "pressed" : "released";
++	len = strlen(s) + 2;
++	skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
++	if (!skb)
++		goto done;
++
++	/* add header */
++	scratch = skb_put(skb, len);
++	sprintf(scratch, "%s@",s);
++
++	/* copy keys to our continuous event payload buffer */
++	add_msg(skb, "HOME=/");
++	add_msg(skb, "PATH=/sbin:/bin:/usr/sbin:/usr/bin");
++	add_msg(skb, "SUBSYSTEM=button");
++	add_msg(skb, "BUTTON=reset");
++	add_msg(skb, (event->set ? "ACTION=pressed" : "ACTION=released"));
++	sprintf(buf, "SEEN=%ld", (event->jiffies - seen)/HZ);
++	add_msg(skb, buf);
++	snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum());
++	add_msg(skb, buf);
++
++	NETLINK_CB(skb).dst_group = 1;
++	netlink_broadcast(uevent_sock, skb, 0, 1, GFP_KERNEL);
++
++done:
++	kfree(event);
++}
++
++static void
++reset_button_poll(unsigned long unused)
++{
++	struct event_t *event;
++	int gpio = ~0;
++
++	if(!no_release_workaround)
++		return;
++
++	gpio = ar231x_gpiodev->get();
++	gpio &= (1 << (AR531X_RESET_GPIO_IRQ - AR531X_GPIO_IRQ_BASE));
++	if(gpio) {
++		rst_button_timer.expires = jiffies + (HZ / 4);
++		add_timer(&rst_button_timer);
++		return;
++	}
++
++	event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
++	if (!event)
++		return;
++
++	event->set = 0;
++	event->jiffies = jiffies;
++	INIT_WORK(&event->wq, hotplug_button);
++	schedule_work(&event->wq);
++}
++
++static irqreturn_t
++button_handler(int irq, void *dev_id)
++{
++	static int pressed = 0;
++	struct event_t *event;
++	u32 gpio = ~0;
++
++	event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
++	if (!event)
++		return IRQ_NONE;
++
++	pressed = !pressed;
++
++	gpio = ar231x_gpiodev->get() & (1 << (irq - AR531X_GPIO_IRQ_BASE));
++
++	event->set = gpio;
++	if(!event->set)
++		no_release_workaround = 0;
++
++	event->jiffies = jiffies;
++
++	INIT_WORK(&event->wq, hotplug_button);
++	schedule_work(&event->wq);
++
++	seen = jiffies;
++	if(event->set && no_release_workaround)
++		mod_timer(&rst_button_timer, jiffies + (HZ / 4));
++
++	return IRQ_HANDLED;
++}
++
++
++static int __init
++ar231x_init_reset(void)
++{
++	seen = jiffies;
++
++	if (ar231x_board.config->resetConfigGpio == 0xffff)
++		return -ENODEV;
++
++	init_timer(&rst_button_timer);
++	rst_button_timer.function = reset_button_poll;
++	rst_button_timer.expires = jiffies + HZ / 50;
++	add_timer(&rst_button_timer);
++
++	request_irq(AR531X_RESET_GPIO_IRQ, &button_handler, IRQF_SAMPLE_RANDOM, "ar231x_reset", NULL);
++
++	return 0;
++}
++
++module_init(ar231x_init_reset);
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar2315_regs.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar2315_regs.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar2315_regs.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar2315_regs.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,580 @@
++/*
++ * Register definitions for AR2315+
++ *
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2008 Felix Fietkau <nbd@openwrt.org>
++ */
++
++#ifndef __AR2315_REG_H
++#define __AR2315_REG_H
++
++/*
++ * IRQs
++ */
++#define AR2315_IRQ_MISC_INTRS   MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
++#define AR2315_IRQ_WLAN0_INTRS  MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
++#define AR2315_IRQ_ENET0_INTRS  MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
++#define AR2315_IRQ_LCBUS_PCI    MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */
++#define AR2315_IRQ_WLAN0_POLL   MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
++
++/*
++ * Address map
++ */
++#define AR2315_SPI_READ         0x08000000      /* SPI FLASH */
++#define AR2315_WLAN0            0xB0000000      /* Wireless MMR */
++#define AR2315_PCI              0xB0100000      /* PCI MMR */
++#define AR2315_SDRAMCTL         0xB0300000      /* SDRAM MMR */
++#define AR2315_LOCAL            0xB0400000      /* LOCAL BUS MMR */
++#define AR2315_ENET0            0xB0500000      /* ETHERNET MMR */
++#define AR2315_DSLBASE          0xB1000000      /* RESET CONTROL MMR */
++#define AR2315_UART0            0xB1100003      /* UART MMR */
++#define AR2315_SPI              0xB1300000      /* SPI FLASH MMR */
++#define AR2315_PCIEXT           0x80000000      /* pci external */
++
++/*
++ * Reset Register
++ */
++#define AR2315_COLD_RESET       (AR2315_DSLBASE + 0x0000)
++
++#define AR2315_RESET_COLD_AHB              0x00000001
++#define AR2315_RESET_COLD_APB              0x00000002
++#define AR2315_RESET_COLD_CPU              0x00000004
++#define AR2315_RESET_COLD_CPUWARM          0x00000008
++#define AR2315_RESET_SYSTEM                (RESET_COLD_CPU | RESET_COLD_APB | RESET_COLD_AHB)      /* full system */
++#define AR2317_RESET_SYSTEM                0x00000010
++
++
++#define AR2315_RESET            (AR2315_DSLBASE + 0x0004)
++
++#define AR2315_RESET_WARM_WLAN0_MAC        0x00000001      /* warm reset WLAN0 MAC */
++#define AR2315_RESET_WARM_WLAN0_BB         0x00000002      /* warm reset WLAN0 BaseBand */
++#define AR2315_RESET_MPEGTS_RSVD           0x00000004      /* warm reset MPEG-TS */
++#define AR2315_RESET_PCIDMA                0x00000008      /* warm reset PCI ahb/dma */
++#define AR2315_RESET_MEMCTL                0x00000010      /* warm reset memory controller */
++#define AR2315_RESET_LOCAL                 0x00000020      /* warm reset local bus */
++#define AR2315_RESET_I2C_RSVD              0x00000040      /* warm reset I2C bus */
++#define AR2315_RESET_SPI                   0x00000080      /* warm reset SPI interface */
++#define AR2315_RESET_UART0                 0x00000100      /* warm reset UART0 */
++#define AR2315_RESET_IR_RSVD               0x00000200      /* warm reset IR interface */
++#define AR2315_RESET_EPHY0                 0x00000400      /* cold reset ENET0 phy */
++#define AR2315_RESET_ENET0                 0x00000800      /* cold reset ENET0 mac */
++
++/*
++ * AHB master arbitration control
++ */
++#define AR2315_AHB_ARB_CTL      (AR2315_DSLBASE + 0x0008)
++
++#define AR2315_ARB_CPU                     0x00000001      /* CPU, default */
++#define AR2315_ARB_WLAN                    0x00000002      /* WLAN */
++#define AR2315_ARB_MPEGTS_RSVD             0x00000004      /* MPEG-TS */
++#define AR2315_ARB_LOCAL                   0x00000008      /* LOCAL */
++#define AR2315_ARB_PCI                     0x00000010      /* PCI */
++#define AR2315_ARB_ETHERNET                0x00000020      /* Ethernet */
++#define AR2315_ARB_RETRY                   0x00000100      /* retry policy, debug only */
++
++/*
++ * Config Register
++ */
++#define AR2315_ENDIAN_CTL       (AR2315_DSLBASE + 0x000c)
++
++#define AR2315_CONFIG_AHB                  0x00000001      /* EC - AHB bridge endianess */
++#define AR2315_CONFIG_WLAN                 0x00000002      /* WLAN byteswap */
++#define AR2315_CONFIG_MPEGTS_RSVD          0x00000004      /* MPEG-TS byteswap */
++#define AR2315_CONFIG_PCI                  0x00000008      /* PCI byteswap */
++#define AR2315_CONFIG_MEMCTL               0x00000010      /* Memory controller endianess */
++#define AR2315_CONFIG_LOCAL                0x00000020      /* Local bus byteswap */
++#define AR2315_CONFIG_ETHERNET             0x00000040      /* Ethernet byteswap */
++
++#define AR2315_CONFIG_MERGE                0x00000200      /* CPU write buffer merge */
++#define AR2315_CONFIG_CPU                  0x00000400      /* CPU big endian */
++#define AR2315_CONFIG_PCIAHB               0x00000800
++#define AR2315_CONFIG_PCIAHB_BRIDGE        0x00001000
++#define AR2315_CONFIG_SPI                  0x00008000      /* SPI byteswap */
++#define AR2315_CONFIG_CPU_DRAM             0x00010000
++#define AR2315_CONFIG_CPU_PCI              0x00020000
++#define AR2315_CONFIG_CPU_MMR              0x00040000
++#define AR2315_CONFIG_BIG                  0x00000400
++
++
++/*
++ * NMI control
++ */
++#define AR2315_NMI_CTL          (AR2315_DSLBASE + 0x0010)
++
++#define AR2315_NMI_EN  1
++
++/*
++ * Revision Register - Initial value is 0x3010 (WMAC 3.0, AR531X 1.0).
++ */
++#define AR2315_SREV             (AR2315_DSLBASE + 0x0014)
++
++#define AR2315_REV_MAJ                     0x00f0
++#define AR2315_REV_MAJ_S                   4
++#define AR2315_REV_MIN                     0x000f
++#define AR2315_REV_MIN_S                   0
++#define AR2315_REV_CHIP                    (AR2315_REV_MAJ|AR2315_REV_MIN)
++
++/*
++ * Interface Enable
++ */
++#define AR2315_IF_CTL           (AR2315_DSLBASE + 0x0018)
++
++#define AR2315_IF_MASK                     0x00000007
++#define AR2315_IF_DISABLED                 0
++#define AR2315_IF_PCI                      1
++#define AR2315_IF_TS_LOCAL                 2
++#define AR2315_IF_ALL                      3   /* only for emulation with separate pins */
++#define AR2315_IF_LOCAL_HOST               0x00000008
++#define AR2315_IF_PCI_HOST                 0x00000010
++#define AR2315_IF_PCI_INTR                 0x00000020
++#define AR2315_IF_PCI_CLK_MASK             0x00030000
++#define AR2315_IF_PCI_CLK_INPUT            0
++#define AR2315_IF_PCI_CLK_OUTPUT_LOW       1
++#define AR2315_IF_PCI_CLK_OUTPUT_CLK       2
++#define AR2315_IF_PCI_CLK_OUTPUT_HIGH      3
++#define AR2315_IF_PCI_CLK_SHIFT            16
++
++/*
++ * APB Interrupt control
++ */
++
++#define AR2315_ISR              (AR2315_DSLBASE + 0x0020)
++#define AR2315_IMR              (AR2315_DSLBASE + 0x0024)
++#define AR2315_GISR             (AR2315_DSLBASE + 0x0028)
++
++#define AR2315_ISR_UART0                   0x0001           /* high speed UART */
++#define AR2315_ISR_I2C_RSVD                0x0002           /* I2C bus */
++#define AR2315_ISR_SPI                     0x0004           /* SPI bus */
++#define AR2315_ISR_AHB                     0x0008           /* AHB error */
++#define AR2315_ISR_APB                     0x0010           /* APB error */
++#define AR2315_ISR_TIMER                   0x0020           /* timer */
++#define AR2315_ISR_GPIO                    0x0040           /* GPIO */
++#define AR2315_ISR_WD                      0x0080           /* watchdog */
++#define AR2315_ISR_IR_RSVD                 0x0100           /* IR */
++
++#define AR2315_GISR_MISC                   0x0001
++#define AR2315_GISR_WLAN0                  0x0002
++#define AR2315_GISR_MPEGTS_RSVD            0x0004
++#define AR2315_GISR_LOCALPCI               0x0008
++#define AR2315_GISR_WMACPOLL               0x0010
++#define AR2315_GISR_TIMER                  0x0020
++#define AR2315_GISR_ETHERNET               0x0040
++
++/*
++ * Interrupt routing from IO to the processor IP bits
++ * Define our inter mask and level
++ */
++#define AR2315_INTR_MISCIO      SR_IBIT3
++#define AR2315_INTR_WLAN0       SR_IBIT4
++#define AR2315_INTR_ENET0       SR_IBIT5
++#define AR2315_INTR_LOCALPCI    SR_IBIT6
++#define AR2315_INTR_WMACPOLL    SR_IBIT7
++#define AR2315_INTR_COMPARE     SR_IBIT8
++
++/*
++ * Timers
++ */
++#define AR2315_TIMER            (AR2315_DSLBASE + 0x0030)
++#define AR2315_RELOAD           (AR2315_DSLBASE + 0x0034)
++#define AR2315_WD               (AR2315_DSLBASE + 0x0038)
++#define AR2315_WDC              (AR2315_DSLBASE + 0x003c)
++
++#define AR2315_WDC_IGNORE_EXPIRATION       0x00000000
++#define AR2315_WDC_NMI                     0x00000001               /* NMI on watchdog */
++#define AR2315_WDC_RESET                   0x00000002               /* reset on watchdog */
++
++/*
++ * CPU Performance Counters
++ */
++#define AR2315_PERFCNT0         (AR2315_DSLBASE + 0x0048)
++#define AR2315_PERFCNT1         (AR2315_DSLBASE + 0x004c)
++
++#define AR2315_PERF0_DATAHIT                0x0001  /* Count Data Cache Hits */
++#define AR2315_PERF0_DATAMISS               0x0002  /* Count Data Cache Misses */
++#define AR2315_PERF0_INSTHIT                0x0004  /* Count Instruction Cache Hits */
++#define AR2315_PERF0_INSTMISS               0x0008  /* Count Instruction Cache Misses */
++#define AR2315_PERF0_ACTIVE                 0x0010  /* Count Active Processor Cycles */
++#define AR2315_PERF0_WBHIT                  0x0020  /* Count CPU Write Buffer Hits */
++#define AR2315_PERF0_WBMISS                 0x0040  /* Count CPU Write Buffer Misses */
++
++#define AR2315_PERF1_EB_ARDY                0x0001  /* Count EB_ARdy signal */
++#define AR2315_PERF1_EB_AVALID              0x0002  /* Count EB_AValid signal */
++#define AR2315_PERF1_EB_WDRDY               0x0004  /* Count EB_WDRdy signal */
++#define AR2315_PERF1_EB_RDVAL               0x0008  /* Count EB_RdVal signal */
++#define AR2315_PERF1_VRADDR                 0x0010  /* Count valid read address cycles */
++#define AR2315_PERF1_VWADDR                 0x0020  /* Count valid write address cycles */
++#define AR2315_PERF1_VWDATA                 0x0040  /* Count valid write data cycles */
++
++/*
++ * AHB Error Reporting.
++ */
++#define AR2315_AHB_ERR0         (AR2315_DSLBASE + 0x0050)  /* error  */
++#define AR2315_AHB_ERR1         (AR2315_DSLBASE + 0x0054)  /* haddr  */
++#define AR2315_AHB_ERR2         (AR2315_DSLBASE + 0x0058)  /* hwdata */
++#define AR2315_AHB_ERR3         (AR2315_DSLBASE + 0x005c)  /* hrdata */
++#define AR2315_AHB_ERR4         (AR2315_DSLBASE + 0x0060)  /* status */
++
++#define AHB_ERROR_DET               1   /* AHB Error has been detected,          */
++                                        /* write 1 to clear all bits in ERR0     */
++#define AHB_ERROR_OVR               2   /* AHB Error overflow has been detected  */
++#define AHB_ERROR_WDT               4   /* AHB Error due to wdt instead of hresp */
++
++#define AR2315_PROCERR_HMAST               0x0000000f
++#define AR2315_PROCERR_HMAST_DFLT          0
++#define AR2315_PROCERR_HMAST_WMAC          1
++#define AR2315_PROCERR_HMAST_ENET          2
++#define AR2315_PROCERR_HMAST_PCIENDPT      3
++#define AR2315_PROCERR_HMAST_LOCAL         4
++#define AR2315_PROCERR_HMAST_CPU           5
++#define AR2315_PROCERR_HMAST_PCITGT        6
++
++#define AR2315_PROCERR_HMAST_S             0
++#define AR2315_PROCERR_HWRITE              0x00000010
++#define AR2315_PROCERR_HSIZE               0x00000060
++#define AR2315_PROCERR_HSIZE_S             5
++#define AR2315_PROCERR_HTRANS              0x00000180
++#define AR2315_PROCERR_HTRANS_S            7
++#define AR2315_PROCERR_HBURST              0x00000e00
++#define AR2315_PROCERR_HBURST_S            9
++
++/*
++ * Clock Control
++ */
++#define AR2315_PLLC_CTL         (AR2315_DSLBASE + 0x0064)
++#define AR2315_PLLV_CTL         (AR2315_DSLBASE + 0x0068)
++#define AR2315_CPUCLK           (AR2315_DSLBASE + 0x006c)
++#define AR2315_AMBACLK          (AR2315_DSLBASE + 0x0070)
++#define AR2315_SYNCCLK          (AR2315_DSLBASE + 0x0074)
++#define AR2315_DSL_SLEEP_CTL    (AR2315_DSLBASE + 0x0080)
++#define AR2315_DSL_SLEEP_DUR    (AR2315_DSLBASE + 0x0084)
++
++/* PLLc Control fields */
++#define PLLC_REF_DIV_M              0x00000003
++#define PLLC_REF_DIV_S              0
++#define PLLC_FDBACK_DIV_M           0x0000007C
++#define PLLC_FDBACK_DIV_S           2
++#define PLLC_ADD_FDBACK_DIV_M       0x00000080
++#define PLLC_ADD_FDBACK_DIV_S       7
++#define PLLC_CLKC_DIV_M             0x0001c000
++#define PLLC_CLKC_DIV_S             14
++#define PLLC_CLKM_DIV_M             0x00700000
++#define PLLC_CLKM_DIV_S             20
++
++/* CPU CLK Control fields */
++#define CPUCLK_CLK_SEL_M            0x00000003
++#define CPUCLK_CLK_SEL_S            0
++#define CPUCLK_CLK_DIV_M            0x0000000c
++#define CPUCLK_CLK_DIV_S            2
++
++/* AMBA CLK Control fields */
++#define AMBACLK_CLK_SEL_M           0x00000003
++#define AMBACLK_CLK_SEL_S           0
++#define AMBACLK_CLK_DIV_M           0x0000000c
++#define AMBACLK_CLK_DIV_S           2
++
++/*
++ * GPIO
++ */
++#define AR2315_GPIO_DI          (AR2315_DSLBASE + 0x0088)
++#define AR2315_GPIO_DO          (AR2315_DSLBASE + 0x0090)
++#define AR2315_GPIO_CR          (AR2315_DSLBASE + 0x0098)
++#define AR2315_GPIO_INT         (AR2315_DSLBASE + 0x00a0)
++
++#define AR2315_GPIO_CR_M(x)                (1 << (x))                  /* mask for i/o */
++#define AR2315_GPIO_CR_O(x)                (1 << (x))                  /* output */
++#define AR2315_GPIO_CR_I(x)                (0)                         /* input */
++
++#define AR2315_GPIO_INT_S(x)               (x)                         /* interrupt enable */
++#define AR2315_GPIO_INT_M                  (0x3F)                      /* mask for int */
++#define AR2315_GPIO_INT_LVL(x)             ((x) << 6)                  /* interrupt level */
++#define AR2315_GPIO_INT_LVL_M              ((0x3) << 6)                /* mask for int level */
++
++#define AR2315_GPIO_INT_MAX_Y				1   /* Maximum value of Y for AR5313_GPIO_INT_* macros */
++#define AR2315_GPIO_INT_LVL_OFF				0   /* Triggerring off */
++#define AR2315_GPIO_INT_LVL_LOW				1   /* Low Level Triggered */
++#define AR2315_GPIO_INT_LVL_HIGH			2   /* High Level Triggered */
++#define AR2315_GPIO_INT_LVL_EDGE			3   /* Edge Triggered */
++
++#define AR2315_RESET_GPIO       5
++#define AR2315_NUM_GPIO         22
++
++/*
++ *  PCI Clock Control
++ */
++#define AR2315_PCICLK           (AR2315_DSLBASE + 0x00a4)
++
++#define AR2315_PCICLK_INPUT_M              0x3
++#define AR2315_PCICLK_INPUT_S              0
++
++#define AR2315_PCICLK_PLLC_CLKM            0
++#define AR2315_PCICLK_PLLC_CLKM1           1
++#define AR2315_PCICLK_PLLC_CLKC            2
++#define AR2315_PCICLK_REF_CLK              3
++
++#define AR2315_PCICLK_DIV_M                0xc
++#define AR2315_PCICLK_DIV_S                2
++
++#define AR2315_PCICLK_IN_FREQ              0
++#define AR2315_PCICLK_IN_FREQ_DIV_6        1
++#define AR2315_PCICLK_IN_FREQ_DIV_8        2
++#define AR2315_PCICLK_IN_FREQ_DIV_10       3
++
++/*
++ * Observation Control Register
++ */
++#define AR2315_OCR              (AR2315_DSLBASE + 0x00b0)
++#define OCR_GPIO0_IRIN              0x0040
++#define OCR_GPIO1_IROUT             0x0080
++#define OCR_GPIO3_RXCLR             0x0200
++
++/*
++ *  General Clock Control
++ */
++
++#define AR2315_MISCCLK          (AR2315_DSLBASE + 0x00b4)
++#define MISCCLK_PLLBYPASS_EN        0x00000001
++#define MISCCLK_PROCREFCLK          0x00000002
++
++/*
++ * SDRAM Controller
++ *   - No read or write buffers are included.
++ */
++#define AR2315_MEM_CFG          (AR2315_SDRAMCTL + 0x00)
++#define AR2315_MEM_CTRL         (AR2315_SDRAMCTL + 0x0c)
++#define AR2315_MEM_REF          (AR2315_SDRAMCTL + 0x10)
++
++#define SDRAM_DATA_WIDTH_M          0x00006000
++#define SDRAM_DATA_WIDTH_S          13
++
++#define SDRAM_COL_WIDTH_M           0x00001E00
++#define SDRAM_COL_WIDTH_S           9
++
++#define SDRAM_ROW_WIDTH_M           0x000001E0
++#define SDRAM_ROW_WIDTH_S           5
++
++#define SDRAM_BANKADDR_BITS_M       0x00000018
++#define SDRAM_BANKADDR_BITS_S       3
++
++/*
++ * SPI Flash Interface Registers
++ */
++
++#define AR2315_SPI_CTL      (AR2315_SPI + 0x00)
++#define AR2315_SPI_OPCODE   (AR2315_SPI + 0x04)
++#define AR2315_SPI_DATA     (AR2315_SPI + 0x08)
++
++#define SPI_CTL_START           0x00000100
++#define SPI_CTL_BUSY            0x00010000
++#define SPI_CTL_TXCNT_MASK      0x0000000f
++#define SPI_CTL_RXCNT_MASK      0x000000f0
++#define SPI_CTL_TX_RX_CNT_MASK  0x000000ff
++#define SPI_CTL_SIZE_MASK       0x00060000
++
++#define SPI_CTL_CLK_SEL_MASK    0x03000000
++#define SPI_OPCODE_MASK         0x000000ff
++
++/*
++ * PCI Bus Interface Registers
++ */
++#define AR2315_PCI_1MS_REG      (AR2315_PCI + 0x0008)
++#define AR2315_PCI_1MS_MASK     0x3FFFF         /* # of AHB clk cycles in 1ms */
++
++#define AR2315_PCI_MISC_CONFIG  (AR2315_PCI + 0x000c)
++#define AR2315_PCIMISC_TXD_EN   0x00000001      /* Enable TXD for fragments */
++#define AR2315_PCIMISC_CFG_SEL  0x00000002      /* mem or config cycles */
++#define AR2315_PCIMISC_GIG_MASK 0x0000000C      /* bits 31-30 for pci req */
++#define AR2315_PCIMISC_RST_MODE 0x00000030
++#define AR2315_PCIRST_INPUT     0x00000000      /* 4:5=0 rst is input */
++#define AR2315_PCIRST_LOW       0x00000010      /* 4:5=1 rst to GND */
++#define AR2315_PCIRST_HIGH      0x00000020      /* 4:5=2 rst to VDD */
++#define AR2315_PCIGRANT_EN      0x00000000      /* 6:7=0 early grant en */
++#define AR2315_PCIGRANT_FRAME   0x00000040      /* 6:7=1 grant waits 4 frame */
++#define AR2315_PCIGRANT_IDLE    0x00000080      /* 6:7=2 grant waits 4 idle */
++#define AR2315_PCIGRANT_GAP     0x00000000      /* 6:7=2 grant waits 4 idle */
++#define AR2315_PCICACHE_DIS     0x00001000      /* PCI external access cache disable */
++
++#define AR2315_PCI_OUT_TSTAMP   (AR2315_PCI + 0x0010)
++
++#define AR2315_PCI_UNCACHE_CFG  (AR2315_PCI + 0x0014)
++
++#define AR2315_PCI_IN_EN        (AR2315_PCI + 0x0100)
++#define AR2315_PCI_IN_EN0       0x01            /* Enable chain 0 */
++#define AR2315_PCI_IN_EN1       0x02            /* Enable chain 1 */
++#define AR2315_PCI_IN_EN2       0x04            /* Enable chain 2 */
++#define AR2315_PCI_IN_EN3       0x08            /* Enable chain 3 */
++
++#define AR2315_PCI_IN_DIS       (AR2315_PCI + 0x0104)
++#define AR2315_PCI_IN_DIS0      0x01            /* Disable chain 0 */
++#define AR2315_PCI_IN_DIS1      0x02            /* Disable chain 1 */
++#define AR2315_PCI_IN_DIS2      0x04            /* Disable chain 2 */
++#define AR2315_PCI_IN_DIS3      0x08            /* Disable chain 3 */
++
++#define AR2315_PCI_IN_PTR       (AR2315_PCI + 0x0200)
++
++#define AR2315_PCI_OUT_EN       (AR2315_PCI + 0x0400)
++#define AR2315_PCI_OUT_EN0      0x01            /* Enable chain 0 */
++
++#define AR2315_PCI_OUT_DIS      (AR2315_PCI + 0x0404)
++#define AR2315_PCI_OUT_DIS0     0x01            /* Disable chain 0 */
++
++#define AR2315_PCI_OUT_PTR      (AR2315_PCI + 0x0408)
++
++#define AR2315_PCI_INT_STATUS   (AR2315_PCI + 0x0500)   /* write one to clr */
++#define AR2315_PCI_TXINT        0x00000001      /* Desc In Completed */
++#define AR2315_PCI_TXOK         0x00000002      /* Desc In OK */
++#define AR2315_PCI_TXERR        0x00000004      /* Desc In ERR */
++#define AR2315_PCI_TXEOL        0x00000008      /* Desc In End-of-List */
++#define AR2315_PCI_RXINT        0x00000010      /* Desc Out Completed */
++#define AR2315_PCI_RXOK         0x00000020      /* Desc Out OK */
++#define AR2315_PCI_RXERR        0x00000040      /* Desc Out ERR */
++#define AR2315_PCI_RXEOL        0x00000080      /* Desc Out EOL */
++#define AR2315_PCI_TXOOD        0x00000200      /* Desc In Out-of-Desc */
++#define AR2315_PCI_MASK         0x0000FFFF      /* Desc Mask */
++#define AR2315_PCI_EXT_INT      0x02000000
++#define AR2315_PCI_ABORT_INT    0x04000000
++
++#define AR2315_PCI_INT_MASK     (AR2315_PCI + 0x0504)   /* same as INT_STATUS */
++
++#define AR2315_PCI_INTEN_REG    (AR2315_PCI + 0x0508)
++#define AR2315_PCI_INT_DISABLE  0x00            /* disable pci interrupts */
++#define AR2315_PCI_INT_ENABLE   0x01            /* enable pci interrupts */
++
++#define AR2315_PCI_HOST_IN_EN   (AR2315_PCI + 0x0800)
++#define AR2315_PCI_HOST_IN_DIS  (AR2315_PCI + 0x0804)
++#define AR2315_PCI_HOST_IN_PTR  (AR2315_PCI + 0x0810)
++#define AR2315_PCI_HOST_OUT_EN  (AR2315_PCI + 0x0900)
++#define AR2315_PCI_HOST_OUT_DIS (AR2315_PCI + 0x0904)
++#define AR2315_PCI_HOST_OUT_PTR (AR2315_PCI + 0x0908)
++
++
++/*
++ * Local Bus Interface Registers
++ */
++#define AR2315_LB_CONFIG        (AR2315_LOCAL + 0x0000)
++#define AR2315_LBCONF_OE        0x00000001      /* =1 OE is low-true */
++#define AR2315_LBCONF_CS0       0x00000002      /* =1 first CS is low-true */
++#define AR2315_LBCONF_CS1       0x00000004      /* =1 2nd CS is low-true */
++#define AR2315_LBCONF_RDY       0x00000008      /* =1 RDY is low-true */
++#define AR2315_LBCONF_WE        0x00000010      /* =1 Write En is low-true */
++#define AR2315_LBCONF_WAIT      0x00000020      /* =1 WAIT is low-true */
++#define AR2315_LBCONF_ADS       0x00000040      /* =1 Adr Strobe is low-true */
++#define AR2315_LBCONF_MOT       0x00000080      /* =0 Intel, =1 Motorola */
++#define AR2315_LBCONF_8CS       0x00000100      /* =1 8 bits CS, 0= 16bits */
++#define AR2315_LBCONF_8DS       0x00000200      /* =1 8 bits Data S, 0=16bits */
++#define AR2315_LBCONF_ADS_EN    0x00000400      /* =1 Enable ADS */
++#define AR2315_LBCONF_ADR_OE    0x00000800      /* =1 Adr cap on OE, WE or DS */
++#define AR2315_LBCONF_ADDT_MUX  0x00001000      /* =1 Adr and Data share bus */
++#define AR2315_LBCONF_DATA_OE   0x00002000      /* =1 Data cap on OE, WE, DS */
++#define AR2315_LBCONF_16DATA    0x00004000      /* =1 Data is 16 bits wide */
++#define AR2315_LBCONF_SWAPDT    0x00008000      /* =1 Byte swap data */
++#define AR2315_LBCONF_SYNC      0x00010000      /* =1 Bus synchronous to clk */
++#define AR2315_LBCONF_INT       0x00020000      /* =1 Intr is low true */
++#define AR2315_LBCONF_INT_CTR0  0x00000000      /* GND high-Z, Vdd is high-Z */
++#define AR2315_LBCONF_INT_CTR1  0x00040000      /* GND drive, Vdd is high-Z */
++#define AR2315_LBCONF_INT_CTR2  0x00080000      /* GND high-Z, Vdd drive */
++#define AR2315_LBCONF_INT_CTR3  0x000C0000      /* GND drive, Vdd drive */
++#define AR2315_LBCONF_RDY_WAIT  0x00100000      /* =1 RDY is negative of WAIT */
++#define AR2315_LBCONF_INT_PULSE 0x00200000      /* =1 Interrupt is a pulse */
++#define AR2315_LBCONF_ENABLE    0x00400000      /* =1 Falcon respond to LB */
++
++#define AR2315_LB_CLKSEL        (AR2315_LOCAL + 0x0004)
++#define AR2315_LBCLK_EXT        0x0001          /* use external clk for lb */
++
++#define AR2315_LB_1MS           (AR2315_LOCAL + 0x0008)
++#define AR2315_LB1MS_MASK       0x3FFFF         /* # of AHB clk cycles in 1ms */
++
++#define AR2315_LB_MISCCFG       (AR2315_LOCAL + 0x000C)
++#define AR2315_LBM_TXD_EN       0x00000001      /* Enable TXD for fragments */
++#define AR2315_LBM_RX_INTEN     0x00000002      /* Enable LB ints on RX ready */
++#define AR2315_LBM_MBOXWR_INTEN 0x00000004      /* Enable LB ints on mbox wr */
++#define AR2315_LBM_MBOXRD_INTEN 0x00000008      /* Enable LB ints on mbox rd */
++#define AR2315_LMB_DESCSWAP_EN  0x00000010      /* Byte swap desc enable */
++#define AR2315_LBM_TIMEOUT_MASK 0x00FFFF80
++#define AR2315_LBM_TIMEOUT_SHFT 7
++#define AR2315_LBM_PORTMUX      0x07000000
++
++
++#define AR2315_LB_RXTSOFF       (AR2315_LOCAL + 0x0010)
++
++#define AR2315_LB_TX_CHAIN_EN   (AR2315_LOCAL + 0x0100)
++#define AR2315_LB_TXEN_0        0x01
++#define AR2315_LB_TXEN_1        0x02
++#define AR2315_LB_TXEN_2        0x04
++#define AR2315_LB_TXEN_3        0x08
++
++#define AR2315_LB_TX_CHAIN_DIS  (AR2315_LOCAL + 0x0104)
++#define AR2315_LB_TX_DESC_PTR   (AR2315_LOCAL + 0x0200)
++
++#define AR2315_LB_RX_CHAIN_EN   (AR2315_LOCAL + 0x0400)
++#define AR2315_LB_RXEN          0x01
++
++#define AR2315_LB_RX_CHAIN_DIS  (AR2315_LOCAL + 0x0404)
++#define AR2315_LB_RX_DESC_PTR   (AR2315_LOCAL + 0x0408)
++
++#define AR2315_LB_INT_STATUS    (AR2315_LOCAL + 0x0500)
++#define AR2315_INT_TX_DESC      0x0001
++#define AR2315_INT_TX_OK        0x0002
++#define AR2315_INT_TX_ERR       0x0004
++#define AR2315_INT_TX_EOF       0x0008
++#define AR2315_INT_RX_DESC      0x0010
++#define AR2315_INT_RX_OK        0x0020
++#define AR2315_INT_RX_ERR       0x0040
++#define AR2315_INT_RX_EOF       0x0080
++#define AR2315_INT_TX_TRUNC     0x0100
++#define AR2315_INT_TX_STARVE    0x0200
++#define AR2315_INT_LB_TIMEOUT   0x0400
++#define AR2315_INT_LB_ERR       0x0800
++#define AR2315_INT_MBOX_WR      0x1000
++#define AR2315_INT_MBOX_RD      0x2000
++
++/* Bit definitions for INT MASK are the same as INT_STATUS */
++#define AR2315_LB_INT_MASK      (AR2315_LOCAL + 0x0504)
++
++#define AR2315_LB_INT_EN        (AR2315_LOCAL + 0x0508)
++#define AR2315_LB_MBOX          (AR2315_LOCAL + 0x0600)
++
++/*
++ * IR Interface Registers
++ */
++#define AR2315_IR_PKTDATA                   (AR2315_IR + 0x0000)
++
++#define AR2315_IR_PKTLEN                    (AR2315_IR + 0x07fc) /* 0 - 63 */
++
++#define AR2315_IR_CONTROL                   (AR2315_IR + 0x0800)
++#define AR2315_IRCTL_TX                     0x00000000  /* use as tranmitter */
++#define AR2315_IRCTL_RX                     0x00000001  /* use as receiver   */
++#define AR2315_IRCTL_SAMPLECLK_MASK         0x00003ffe  /* Sample clk divisor mask */
++#define AR2315_IRCTL_SAMPLECLK_SHFT                  1
++#define AR2315_IRCTL_OUTPUTCLK_MASK         0x03ffc000  /* Output clk divisor mask */
++#define AR2315_IRCTL_OUTPUTCLK_SHFT                 14
++
++#define AR2315_IR_STATUS                    (AR2315_IR + 0x0804)
++#define AR2315_IRSTS_RX                     0x00000001  /* receive in progress */
++#define AR2315_IRSTS_TX                     0x00000002  /* transmit in progress */
++
++#define AR2315_IR_CONFIG                    (AR2315_IR + 0x0808)
++#define AR2315_IRCFG_INVIN                  0x00000001  /* invert input polarity */
++#define AR2315_IRCFG_INVOUT                 0x00000002  /* invert output polarity */
++#define AR2315_IRCFG_SEQ_START_WIN_SEL      0x00000004  /* 1 => 28, 0 => 7 */
++#define AR2315_IRCFG_SEQ_START_THRESH       0x000000f0  /*  */
++#define AR2315_IRCFG_SEQ_END_UNIT_SEL       0x00000100  /*  */
++#define AR2315_IRCFG_SEQ_END_UNIT_THRESH    0x00007e00  /*  */
++#define AR2315_IRCFG_SEQ_END_WIN_SEL        0x00008000  /*  */
++#define AR2315_IRCFG_SEQ_END_WIN_THRESH     0x001f0000  /*  */
++#define AR2315_IRCFG_NUM_BACKOFF_WORDS      0x01e00000  /*  */
++
++#define HOST_PCI_DEV_ID         3
++#define HOST_PCI_MBAR0          0x10000000
++#define HOST_PCI_MBAR1          0x20000000
++#define HOST_PCI_MBAR2          0x30000000
++
++#define HOST_PCI_SDRAM_BASEADDR HOST_PCI_MBAR1
++#define PCI_DEVICE_MEM_SPACE    0x800000
++
++#endif /* __AR2315_REG_H */
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar2315_spiflash.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar2315_spiflash.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar2315_spiflash.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar2315_spiflash.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,116 @@
++/*
++ * SPI Flash Memory support header file.
++ *
++ * Copyright (c) 2005, Atheros Communications Inc.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++ *
++ * This code 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 __AR2315_SPIFLASH_H
++#define __AR2315_SPIFLASH_H
++
++#define STM_PAGE_SIZE           256
++
++#define SFI_WRITE_BUFFER_SIZE   4
++#define SFI_FLASH_ADDR_MASK     0x00ffffff
++
++#define STM_8MBIT_SIGNATURE     0x13
++#define STM_M25P80_BYTE_COUNT   1048576
++#define STM_M25P80_SECTOR_COUNT 16
++#define STM_M25P80_SECTOR_SIZE  0x10000
++
++#define STM_16MBIT_SIGNATURE    0x14
++#define STM_M25P16_BYTE_COUNT   2097152
++#define STM_M25P16_SECTOR_COUNT 32
++#define STM_M25P16_SECTOR_SIZE  0x10000
++
++#define STM_32MBIT_SIGNATURE    0x15
++#define STM_M25P32_BYTE_COUNT   4194304
++#define STM_M25P32_SECTOR_COUNT 64
++#define STM_M25P32_SECTOR_SIZE  0x10000
++
++#define STM_64MBIT_SIGNATURE    0x16
++#define STM_M25P64_BYTE_COUNT   8388608
++#define STM_M25P64_SECTOR_COUNT 128
++#define STM_M25P64_SECTOR_SIZE  0x10000
++
++#define STM_128MBIT_SIGNATURE   0x17
++#define STM_M25P128_BYTE_COUNT   16777216
++#define STM_M25P128_SECTOR_COUNT 256
++#define STM_M25P128_SECTOR_SIZE  0x10000
++
++#define STM_1MB_BYTE_COUNT   STM_M25P80_BYTE_COUNT
++#define STM_1MB_SECTOR_COUNT STM_M25P80_SECTOR_COUNT
++#define STM_1MB_SECTOR_SIZE  STM_M25P80_SECTOR_SIZE
++#define STM_2MB_BYTE_COUNT   STM_M25P16_BYTE_COUNT
++#define STM_2MB_SECTOR_COUNT STM_M25P16_SECTOR_COUNT
++#define STM_2MB_SECTOR_SIZE  STM_M25P16_SECTOR_SIZE
++#define STM_4MB_BYTE_COUNT   STM_M25P32_BYTE_COUNT
++#define STM_4MB_SECTOR_COUNT STM_M25P32_SECTOR_COUNT
++#define STM_4MB_SECTOR_SIZE  STM_M25P32_SECTOR_SIZE
++#define STM_8MB_BYTE_COUNT   STM_M25P64_BYTE_COUNT
++#define STM_8MB_SECTOR_COUNT STM_M25P64_SECTOR_COUNT
++#define STM_8MB_SECTOR_SIZE  STM_M25P64_SECTOR_SIZE
++#define STM_16MB_BYTE_COUNT   STM_M25P128_BYTE_COUNT
++#define STM_16MB_SECTOR_COUNT STM_M25P128_SECTOR_COUNT
++#define STM_16MB_SECTOR_SIZE  STM_M25P128_SECTOR_SIZE
++
++/*
++ * ST Microelectronics Opcodes for Serial Flash
++ */
++
++#define STM_OP_WR_ENABLE       0x06     /* Write Enable */
++#define STM_OP_WR_DISABLE      0x04     /* Write Disable */
++#define STM_OP_RD_STATUS       0x05     /* Read Status */
++#define STM_OP_WR_STATUS       0x01     /* Write Status */
++#define STM_OP_RD_DATA         0x03     /* Read Data */
++#define STM_OP_FAST_RD_DATA    0x0b     /* Fast Read Data */
++#define STM_OP_PAGE_PGRM       0x02     /* Page Program */
++#define STM_OP_SECTOR_ERASE    0xd8     /* Sector Erase */
++#define STM_OP_BULK_ERASE      0xc7     /* Bulk Erase */
++#define STM_OP_DEEP_PWRDOWN    0xb9     /* Deep Power-Down Mode */
++#define STM_OP_RD_SIG          0xab     /* Read Electronic Signature */
++
++#define STM_STATUS_WIP       0x01       /* Write-In-Progress */
++#define STM_STATUS_WEL       0x02       /* Write Enable Latch */
++#define STM_STATUS_BP0       0x04       /* Block Protect 0 */
++#define STM_STATUS_BP1       0x08       /* Block Protect 1 */
++#define STM_STATUS_BP2       0x10       /* Block Protect 2 */
++#define STM_STATUS_SRWD      0x80       /* Status Register Write Disable */
++
++/*
++ * SPI Flash Interface Registers
++ */
++#define AR531XPLUS_SPI_READ     0x08000000
++#define AR531XPLUS_SPI_MMR      0x11300000
++#define AR531XPLUS_SPI_MMR_SIZE 12
++
++#define AR531XPLUS_SPI_CTL      0x00
++#define AR531XPLUS_SPI_OPCODE   0x04
++#define AR531XPLUS_SPI_DATA     0x08
++
++#define SPI_FLASH_READ          AR531XPLUS_SPI_READ
++#define SPI_FLASH_MMR           AR531XPLUS_SPI_MMR
++#define SPI_FLASH_MMR_SIZE      AR531XPLUS_SPI_MMR_SIZE
++#define SPI_FLASH_CTL           AR531XPLUS_SPI_CTL
++#define SPI_FLASH_OPCODE        AR531XPLUS_SPI_OPCODE
++#define SPI_FLASH_DATA          AR531XPLUS_SPI_DATA
++
++#define SPI_CTL_START           0x00000100
++#define SPI_CTL_BUSY            0x00010000
++#define SPI_CTL_TXCNT_MASK      0x0000000f
++#define SPI_CTL_RXCNT_MASK      0x000000f0
++#define SPI_CTL_TX_RX_CNT_MASK  0x000000ff
++#define SPI_CTL_SIZE_MASK       0x00060000
++
++#define SPI_CTL_CLK_SEL_MASK    0x03000000
++#define SPI_OPCODE_MASK         0x000000ff
++
++#define SPI_STATUS_WIP		STM_STATUS_WIP
++
++#endif
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar231x.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar231x.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar231x.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar231x.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,54 @@
++#ifndef __AR531X_H
++#define __AR531X_H
++
++#define AR531X_MISC_IRQ_BASE		0x20
++#define AR531X_GPIO_IRQ_BASE		0x30
++
++/* Software's idea of interrupts handled by "CPU Interrupt Controller" */
++#define AR531X_IRQ_NONE		MIPS_CPU_IRQ_BASE+0
++#define AR531X_IRQ_CPU_CLOCK	MIPS_CPU_IRQ_BASE+7 /* C0_CAUSE: 0x8000 */
++
++/* Miscellaneous interrupts, which share IP6 */
++#define AR531X_MISC_IRQ_NONE		AR531X_MISC_IRQ_BASE+0
++#define AR531X_MISC_IRQ_TIMER		AR531X_MISC_IRQ_BASE+1
++#define AR531X_MISC_IRQ_AHB_PROC	AR531X_MISC_IRQ_BASE+2
++#define AR531X_MISC_IRQ_AHB_DMA		AR531X_MISC_IRQ_BASE+3
++#define AR531X_MISC_IRQ_GPIO		AR531X_MISC_IRQ_BASE+4
++#define AR531X_MISC_IRQ_UART0		AR531X_MISC_IRQ_BASE+5
++#define AR531X_MISC_IRQ_UART0_DMA	AR531X_MISC_IRQ_BASE+6
++#define AR531X_MISC_IRQ_WATCHDOG	AR531X_MISC_IRQ_BASE+7
++#define AR531X_MISC_IRQ_LOCAL		AR531X_MISC_IRQ_BASE+8
++#define AR531X_MISC_IRQ_SPI 		AR531X_MISC_IRQ_BASE+9
++#define AR531X_MISC_IRQ_COUNT		10
++
++/* GPIO Interrupts [0..7], share AR531X_MISC_IRQ_GPIO */
++#define AR531X_GPIO_IRQ_NONE            AR531X_GPIO_IRQ_BASE+0
++#define AR531X_GPIO_IRQ(n)              AR531X_GPIO_IRQ_BASE+n
++#define AR531X_GPIO_IRQ_COUNT           22
++
++static inline u32
++ar231x_read_reg(u32 reg)
++{
++	return __raw_readl((u32 *) KSEG1ADDR(reg));
++}
++
++static inline void
++ar231x_write_reg(u32 reg, u32 val)
++{
++	__raw_writel(val, (u32 *) KSEG1ADDR(reg));
++}
++
++static inline u32
++ar231x_mask_reg(u32 reg, u32 mask, u32 val)
++{
++	u32 ret;
++
++	ret = ar231x_read_reg(reg);
++	ret &= ~mask;
++	ret |= val;
++	ar231x_write_reg(reg, ret);
++
++	return ret;
++}
++
++#endif
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar231x_platform.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar231x_platform.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar231x_platform.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar231x_platform.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,83 @@
++#ifndef __AR531X_PLATFORM_H
++#define __AR531X_PLATFORM_H
++
++/*
++ * This is board-specific data that is stored in a "fixed" location in flash.
++ * It is shared across operating systems, so it should not be changed lightly.
++ * The main reason we need it is in order to extract the ethernet MAC
++ * address(es).
++ */
++struct ar231x_boarddata {
++    u32 magic;                       /* board data is valid */
++#define AR531X_BD_MAGIC 0x35333131   /* "5311", for all 531x platforms */
++    u16 cksum;                       /* checksum (starting with BD_REV 2) */
++    u16 rev;                         /* revision of this struct */
++#define BD_REV  4
++    char boardName[64];            /* Name of board */
++    u16 major;                       /* Board major number */
++    u16 minor;                       /* Board minor number */
++    u32 flags;                      /* Board configuration */
++#define BD_ENET0        0x00000001   /* ENET0 is stuffed */
++#define BD_ENET1        0x00000002   /* ENET1 is stuffed */
++#define BD_UART1        0x00000004   /* UART1 is stuffed */
++#define BD_UART0        0x00000008   /* UART0 is stuffed (dma) */
++#define BD_RSTFACTORY   0x00000010   /* Reset factory defaults stuffed */
++#define BD_SYSLED       0x00000020   /* System LED stuffed */
++#define BD_EXTUARTCLK   0x00000040   /* External UART clock */
++#define BD_CPUFREQ      0x00000080   /* cpu freq is valid in nvram */
++#define BD_SYSFREQ      0x00000100   /* sys freq is set in nvram */
++#define BD_WLAN0        0x00000200   /* Enable WLAN0 */
++#define BD_MEMCAP       0x00000400   /* CAP SDRAM @ memCap for testing */
++#define BD_DISWATCHDOG  0x00000800   /* disable system watchdog */
++#define BD_WLAN1        0x00001000   /* Enable WLAN1 (ar5212) */
++#define BD_ISCASPER     0x00002000   /* FLAG for AR2312 */
++#define BD_WLAN0_2G_EN  0x00004000   /* FLAG for radio0_2G */
++#define BD_WLAN0_5G_EN  0x00008000   /* FLAG for radio0_2G */
++#define BD_WLAN1_2G_EN  0x00020000   /* FLAG for radio0_2G */
++#define BD_WLAN1_5G_EN  0x00040000   /* FLAG for radio0_2G */
++    u16 resetConfigGpio;             /* Reset factory GPIO pin */
++    u16 sysLedGpio;                  /* System LED GPIO pin */
++
++    u32 cpuFreq;                     /* CPU core frequency in Hz */
++    u32 sysFreq;                     /* System frequency in Hz */
++    u32 cntFreq;                     /* Calculated C0_COUNT frequency */
++
++    u8  wlan0_mac[6];
++    u8  enet0_mac[6];
++    u8  enet1_mac[6];
++
++    u16 pciId;                       /* Pseudo PCIID for common code */
++    u16 memCap;                      /* cap bank1 in MB */
++
++    /* version 3 */
++    u8  wlan1_mac[6];                 /* (ar5212) */
++};
++
++#define BOARD_CONFIG_BUFSZ		0x1000
++
++/*
++ * Platform device information for the Wireless MAC
++ */
++struct ar231x_board_config {
++	u16 devid;
++
++	/* board config data */
++	struct ar231x_boarddata *config;
++
++	/* radio calibration data */
++	const char *radio;
++};
++
++/*
++ * Platform device information for the Ethernet MAC
++ */
++struct ar231x_eth {
++	u32 reset_base;
++	u32 reset_mac;
++	u32 reset_phy;
++	u32 phy_base;
++	struct ar231x_board_config *config;
++	char *macaddr;
++};
++
++#endif /* __AR531X_PLATFORM_H */
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar5312_regs.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar5312_regs.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/ar5312_regs.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/ar5312_regs.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,236 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++#ifndef AR5312_H
++#define AR5312_H
++
++#include <asm/addrspace.h>
++
++/*
++ * IRQs
++ */
++
++#define AR5312_IRQ_WLAN0_INTRS  MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
++#define AR5312_IRQ_ENET0_INTRS  MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
++#define AR5312_IRQ_ENET1_INTRS  MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
++#define AR5312_IRQ_WLAN1_INTRS  MIPS_CPU_IRQ_BASE+5 /* C0_CAUSE: 0x2000 */
++#define AR5312_IRQ_MISC_INTRS   MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
++
++
++/* Address Map */
++#define AR531X_WLAN0            0x18000000
++#define AR531X_WLAN1            0x18500000
++#define AR531X_ENET0            0x18100000
++#define AR531X_ENET1            0x18200000
++#define AR531X_SDRAMCTL         0x18300000
++#define AR531X_FLASHCTL         0x18400000
++#define AR531X_APBBASE		0x1c000000
++#define AR531X_FLASH            0x1e000000
++#define AR531X_UART0            0xbc000003      /* UART MMR */
++
++/*
++ * AR531X_NUM_ENET_MAC defines the number of ethernet MACs that
++ * should be considered available.  The AR5312 supports 2 enet MACS,
++ * even though many reference boards only actually use 1 of them
++ * (i.e. Only MAC 0 is actually connected to an enet PHY or PHY switch.
++ * The AR2312 supports 1 enet MAC.
++ */
++#define AR531X_NUM_ENET_MAC             2
++
++/*
++ * Need these defines to determine true number of ethernet MACs
++ */
++#define AR5212_AR5312_REV2      0x0052          /* AR5312 WMAC (AP31) */
++#define AR5212_AR5312_REV7      0x0057          /* AR5312 WMAC (AP30-040) */
++#define AR5212_AR2313_REV8      0x0058          /* AR2313 WMAC (AP43-030) */
++#define AR531X_RADIO_MASK_OFF  0xc8
++#define AR531X_RADIO0_MASK     0x0003
++#define AR531X_RADIO1_MASK     0x000c
++#define AR531X_RADIO1_S        2
++
++/*
++ * AR531X_NUM_WMAC defines the number of Wireless MACs that\
++ * should be considered available.
++ */
++#define AR531X_NUM_WMAC                 2
++
++/* Reset/Timer Block Address Map */
++#define AR531X_RESETTMR		(AR531X_APBBASE  + 0x3000)
++#define AR531X_TIMER		(AR531X_RESETTMR + 0x0000) /* countdown timer */
++#define AR531X_WD_CTRL          (AR531X_RESETTMR + 0x0008) /* watchdog cntrl */
++#define AR531X_WD_TIMER         (AR531X_RESETTMR + 0x000c) /* watchdog timer */
++#define AR531X_ISR		(AR531X_RESETTMR + 0x0010) /* Intr Status Reg */
++#define AR531X_IMR		(AR531X_RESETTMR + 0x0014) /* Intr Mask Reg */
++#define AR531X_RESET		(AR531X_RESETTMR + 0x0020)
++#define AR5312_CLOCKCTL1	(AR531X_RESETTMR + 0x0064)
++#define AR5312_SCRATCH   	(AR531X_RESETTMR + 0x006c)
++#define AR531X_PROCADDR		(AR531X_RESETTMR + 0x0070)
++#define AR531X_PROC1		(AR531X_RESETTMR + 0x0074)
++#define AR531X_DMAADDR		(AR531X_RESETTMR + 0x0078)
++#define AR531X_DMA1		(AR531X_RESETTMR + 0x007c)
++#define AR531X_ENABLE           (AR531X_RESETTMR + 0x0080) /* interface enb */
++#define AR531X_REV		(AR531X_RESETTMR + 0x0090) /* revision */
++
++/* AR531X_WD_CTRL register bit field definitions */
++#define AR531X_WD_CTRL_IGNORE_EXPIRATION 0x0000
++#define AR531X_WD_CTRL_NMI               0x0001
++#define AR531X_WD_CTRL_RESET             0x0002
++
++/* AR531X_ISR register bit field definitions */
++#define AR531X_ISR_NONE		0x0000
++#define AR531X_ISR_TIMER	0x0001
++#define AR531X_ISR_AHBPROC	0x0002
++#define AR531X_ISR_AHBDMA	0x0004
++#define AR531X_ISR_GPIO		0x0008
++#define AR531X_ISR_UART0	0x0010
++#define AR531X_ISR_UART0DMA	0x0020
++#define AR531X_ISR_WD		0x0040
++#define AR531X_ISR_LOCAL	0x0080
++
++/* AR531X_RESET register bit field definitions */
++#define AR531X_RESET_SYSTEM     0x00000001  /* cold reset full system */
++#define AR531X_RESET_PROC       0x00000002  /* cold reset MIPS core */
++#define AR531X_RESET_WLAN0      0x00000004  /* cold reset WLAN MAC and BB */
++#define AR531X_RESET_EPHY0      0x00000008  /* cold reset ENET0 phy */
++#define AR531X_RESET_EPHY1      0x00000010  /* cold reset ENET1 phy */
++#define AR531X_RESET_ENET0      0x00000020  /* cold reset ENET0 mac */
++#define AR531X_RESET_ENET1      0x00000040  /* cold reset ENET1 mac */
++#define AR531X_RESET_UART0      0x00000100  /* cold reset UART0 (high speed) */
++#define AR531X_RESET_WLAN1      0x00000200  /* cold reset WLAN MAC/BB */
++#define AR531X_RESET_APB        0x00000400  /* cold reset APB (ar5312) */
++#define AR531X_RESET_WARM_PROC  0x00001000  /* warm reset MIPS core */
++#define AR531X_RESET_WARM_WLAN0_MAC 0x00002000  /* warm reset WLAN0 MAC */
++#define AR531X_RESET_WARM_WLAN0_BB  0x00004000  /* warm reset WLAN0 BaseBand */
++#define AR531X_RESET_NMI        0x00010000  /* send an NMI to the processor */
++#define AR531X_RESET_WARM_WLAN1_MAC 0x00020000  /* warm reset WLAN1 mac */
++#define AR531X_RESET_WARM_WLAN1_BB  0x00040000  /* warm reset WLAN1 baseband */
++#define AR531X_RESET_LOCAL_BUS  0x00080000  /* reset local bus */
++#define AR531X_RESET_WDOG       0x00100000  /* last reset was a watchdog */
++
++#define AR531X_RESET_WMAC0_BITS \
++        AR531X_RESET_WLAN0 |\
++        AR531X_RESET_WARM_WLAN0_MAC |\
++        AR531X_RESET_WARM_WLAN0_BB
++
++#define AR531X_RESERT_WMAC1_BITS \
++        AR531X_RESET_WLAN1 |\
++        AR531X_RESET_WARM_WLAN1_MAC |\
++        AR531X_RESET_WARM_WLAN1_BB
++
++/* AR5312_CLOCKCTL1 register bit field definitions */
++#define AR5312_CLOCKCTL1_PREDIVIDE_MASK    0x00000030
++#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT            4
++#define AR5312_CLOCKCTL1_MULTIPLIER_MASK   0x00001f00
++#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT           8
++#define AR5312_CLOCKCTL1_DOUBLER_MASK      0x00010000
++
++/* Valid for AR5312 and AR2312 */
++#define AR5312_CLOCKCTL1_PREDIVIDE_MASK    0x00000030
++#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT            4
++#define AR5312_CLOCKCTL1_MULTIPLIER_MASK   0x00001f00
++#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT           8
++#define AR5312_CLOCKCTL1_DOUBLER_MASK      0x00010000
++
++/* Valid for AR2313 */
++#define AR2313_CLOCKCTL1_PREDIVIDE_MASK    0x00003000
++#define AR2313_CLOCKCTL1_PREDIVIDE_SHIFT           12
++#define AR2313_CLOCKCTL1_MULTIPLIER_MASK   0x001f0000
++#define AR2313_CLOCKCTL1_MULTIPLIER_SHIFT          16
++#define AR2313_CLOCKCTL1_DOUBLER_MASK      0x00000000
++
++
++/* AR531X_ENABLE register bit field definitions */
++#define AR531X_ENABLE_WLAN0              0x0001
++#define AR531X_ENABLE_ENET0              0x0002
++#define AR531X_ENABLE_ENET1              0x0004
++#define AR531X_ENABLE_UART_AND_WLAN1_PIO 0x0008   /* UART, and WLAN1 PIOs */
++#define AR531X_ENABLE_WLAN1_DMA          0x0010   /* WLAN1 DMAs */
++#define AR531X_ENABLE_WLAN1 \
++            (AR531X_ENABLE_UART_AND_WLAN1_PIO | AR531X_ENABLE_WLAN1_DMA)
++
++/* AR531X_REV register bit field definitions */
++#define AR531X_REV_WMAC_MAJ    0xf000
++#define AR531X_REV_WMAC_MAJ_S  12
++#define AR531X_REV_WMAC_MIN    0x0f00
++#define AR531X_REV_WMAC_MIN_S  8
++#define AR531X_REV_MAJ         0x00f0
++#define AR531X_REV_MAJ_S       4
++#define AR531X_REV_MIN         0x000f
++#define AR531X_REV_MIN_S       0
++#define AR531X_REV_CHIP        (AR531X_REV_MAJ|AR531X_REV_MIN)
++
++/* Major revision numbers, bits 7..4 of Revision ID register */
++#define AR531X_REV_MAJ_AR5312          0x4
++#define AR531X_REV_MAJ_AR2313          0x5
++
++/* Minor revision numbers, bits 3..0 of Revision ID register */
++#define AR5312_REV_MIN_DUAL     0x0     /* Dual WLAN version */
++#define AR5312_REV_MIN_SINGLE   0x1     /* Single WLAN version */
++
++/* AR531X_FLASHCTL register bit field definitions */
++#define FLASHCTL_IDCY   0x0000000f      /* Idle cycle turn around time */
++#define FLASHCTL_IDCY_S 0
++#define FLASHCTL_WST1   0x000003e0      /* Wait state 1 */
++#define FLASHCTL_WST1_S 5
++#define FLASHCTL_RBLE   0x00000400      /* Read byte lane enable */
++#define FLASHCTL_WST2   0x0000f800      /* Wait state 2 */
++#define FLASHCTL_WST2_S 11
++#define FLASHCTL_AC     0x00070000      /* Flash address check (added) */
++#define FLASHCTL_AC_S   16
++#define FLASHCTL_AC_128K 0x00000000
++#define FLASHCTL_AC_256K 0x00010000
++#define FLASHCTL_AC_512K 0x00020000
++#define FLASHCTL_AC_1M   0x00030000
++#define FLASHCTL_AC_2M   0x00040000
++#define FLASHCTL_AC_4M   0x00050000
++#define FLASHCTL_AC_8M   0x00060000
++#define FLASHCTL_AC_RES  0x00070000     /* 16MB is not supported */
++#define FLASHCTL_E      0x00080000      /* Flash bank enable (added) */
++#define FLASHCTL_BUSERR 0x01000000      /* Bus transfer error status flag */
++#define FLASHCTL_WPERR  0x02000000      /* Write protect error status flag */
++#define FLASHCTL_WP     0x04000000      /* Write protect */
++#define FLASHCTL_BM     0x08000000      /* Burst mode */
++#define FLASHCTL_MW     0x30000000      /* Memory width */
++#define FLASHCTL_MWx8   0x00000000      /* Memory width x8 */
++#define FLASHCTL_MWx16  0x10000000      /* Memory width x16 */
++#define FLASHCTL_MWx32  0x20000000      /* Memory width x32 (not supported) */
++#define FLASHCTL_ATNR   0x00000000      /* Access type == no retry */
++#define FLASHCTL_ATR    0x80000000      /* Access type == retry every */
++#define FLASHCTL_ATR4   0xc0000000      /* Access type == retry every 4 */
++
++/* ARM Flash Controller -- 3 flash banks with either x8 or x16 devices.  */
++#define AR531X_FLASHCTL0        (AR531X_FLASHCTL + 0x00)
++#define AR531X_FLASHCTL1        (AR531X_FLASHCTL + 0x04)
++#define AR531X_FLASHCTL2        (AR531X_FLASHCTL + 0x08)
++
++/* ARM SDRAM Controller -- just enough to determine memory size */
++#define AR531X_MEM_CFG1 (AR531X_SDRAMCTL + 0x04)
++#define MEM_CFG1_AC0    0x00000700      /* bank 0: SDRAM addr check (added) */
++#define MEM_CFG1_AC0_S  8
++#define MEM_CFG1_AC1    0x00007000      /* bank 1: SDRAM addr check (added) */
++#define MEM_CFG1_AC1_S  12
++
++/* GPIO Address Map */
++#define AR531X_GPIO         (AR531X_APBBASE  + 0x2000)
++#define AR531X_GPIO_DO      (AR531X_GPIO + 0x00)        /* output register */
++#define AR531X_GPIO_DI      (AR531X_GPIO + 0x04)        /* intput register */
++#define AR531X_GPIO_CR      (AR531X_GPIO + 0x08)        /* control register */
++
++/* GPIO Control Register bit field definitions */
++#define AR531X_GPIO_CR_M(x)    (1 << (x))                      /* mask for i/o */
++#define AR531X_GPIO_CR_O(x)    (0 << (x))                      /* mask for output */
++#define AR531X_GPIO_CR_I(x)    (1 << (x))                      /* mask for input */
++#define AR531X_GPIO_CR_INT(x)  (1 << ((x)+8))                  /* mask for interrupt */
++#define AR531X_GPIO_CR_UART(x) (1 << ((x)+16))                 /* uart multiplex */
++#define AR531X_NUM_GPIO		8
++
++
++#endif
++
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/cpu-feature-overrides.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,84 @@
++/*
++ *  Atheros SoC specific CPU feature overrides
++ *
++ *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
++ *
++ *  This file was derived from: include/asm-mips/cpu-features.h
++ *	Copyright (C) 2003, 2004 Ralf Baechle
++ *	Copyright (C) 2004 Maciej W. Rozycki
++ *
++ *  This program is free software; you can redistribute it and/or modify it
++ *  under the terms of the GNU General Public License version 2 as published
++ *  by the Free Software Foundation.
++ *
++ */
++#ifndef __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H
++#define __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H
++
++/*
++ * The ATHEROS SoCs have MIPS 4Kc/4KEc core.
++ */
++#define cpu_has_tlb			1
++#define cpu_has_4kex			1
++#define cpu_has_3k_cache		0
++#define cpu_has_4k_cache		1
++#define cpu_has_tx39_cache		0
++#define cpu_has_sb1_cache		0
++#define cpu_has_fpu			0
++#define cpu_has_32fpr			0
++#define cpu_has_counter			1
++/* #define cpu_has_watch		? */
++/* #define cpu_has_divec		? */
++/* #define cpu_has_vce			? */
++/* #define cpu_has_cache_cdex_p		? */
++/* #define cpu_has_cache_cdex_s		? */
++/* #define cpu_has_prefetch		? */
++/* #define cpu_has_mcheck		? */
++#define cpu_has_ejtag			1
++
++#if !defined(CONFIG_ATHEROS_AR5312)
++#  define cpu_has_llsc			1
++#else
++/*
++ * The MIPS 4Kc V0.9 core in the AR5312/AR2312 have problems with the
++ * ll/sc instructions.
++ */
++#  define cpu_has_llsc			0
++#endif
++
++#define cpu_has_mips16			0
++#define cpu_has_mdmx			0
++#define cpu_has_mips3d			0
++#define cpu_has_smartmips		0
++
++/* #define cpu_has_vtag_icache		? */
++/* #define cpu_has_dc_aliases		? */
++/* #define cpu_has_ic_fills_f_dc	? */
++/* #define cpu_has_pindexed_dcache	? */
++
++/* #define cpu_icache_snoops_remote_store	? */
++
++#define cpu_has_mips32r1		1
++
++#if !defined(CONFIG_ATHEROS_AR5312)
++#  define cpu_has_mips32r2		1
++#endif
++
++#define cpu_has_mips64r1		0
++#define cpu_has_mips64r2		0
++
++#define cpu_has_dsp			0
++#define cpu_has_mipsmt			0
++
++/* #define cpu_has_nofpuex		? */
++#define cpu_has_64bits			0
++#define cpu_has_64bit_zero_reg		0
++#define cpu_has_64bit_gp_regs		0
++#define cpu_has_64bit_addresses		0
++
++/* #define cpu_has_inclusive_pcaches	? */
++
++/* #define cpu_dcache_line_size()	? */
++/* #define cpu_icache_line_size()	? */
++
++#endif /* __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H */
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/dma-coherence.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/dma-coherence.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/dma-coherence.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/dma-coherence.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,64 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2006  Ralf Baechle <ralf@linux-mips.org>
++ * Copyright (C) 2007  Felix Fietkau <nbd@openwrt.org>
++ *
++ */
++#ifndef __ASM_MACH_GENERIC_DMA_COHERENCE_H
++#define __ASM_MACH_GENERIC_DMA_COHERENCE_H
++
++#define PCI_DMA_OFFSET	0x20000000
++
++struct device;
++
++static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
++{
++	return virt_to_phys(addr) + (dev != NULL ? PCI_DMA_OFFSET : 0);
++}
++
++static inline dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
++{
++	return page_to_phys(page) + (dev != NULL ? PCI_DMA_OFFSET : 0);
++}
++
++static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
++	dma_addr_t dma_addr)
++{
++	return (dma_addr > PCI_DMA_OFFSET ? dma_addr - PCI_DMA_OFFSET : dma_addr);
++}
++
++static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
++	size_t size, enum dma_data_direction direction)
++{
++}
++
++static inline int plat_dma_supported(struct device *dev, u64 mask)
++{
++	return 1;
++}
++
++static inline void plat_extra_sync_for_device(struct device *dev)
++{
++	return;
++}
++
++static inline int plat_dma_mapping_error(struct device *dev,
++					 dma_addr_t dma_addr)
++{
++	return 0;
++}
++
++static inline int plat_device_is_coherent(struct device *dev)
++{
++#ifdef CONFIG_DMA_COHERENT
++	return 1;
++#endif
++#ifdef CONFIG_DMA_NONCOHERENT
++	return 0;
++#endif
++}
++
++#endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/gpio.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/gpio.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/gpio.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/gpio.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,84 @@
++#ifndef _ATHEROS_GPIO_H_
++#define _ATHEROS_GPIO_H_
++
++#include <ar231x.h>
++
++struct ar231x_gpiodev {
++	u32 valid_mask;
++	u32 (*get_output)(void);
++	u32 (*set_output)(u32 mask, u32 val);
++	u32 (*get)(void);
++	u32 (*set)(u32 mask, u32 val);
++};
++
++extern const struct ar231x_gpiodev *ar231x_gpiodev;
++
++/*
++ * Wrappers for the generic GPIO layer
++ */
++
++static inline int gpio_direction_input(unsigned gpio) {
++	u32 mask = 1 << gpio;
++
++	if (!(ar231x_gpiodev->valid_mask & mask))
++		return -ENXIO;
++
++	ar231x_gpiodev->set_output(mask, 0);
++	return 0;
++}
++
++static inline void gpio_set_value(unsigned gpio, int value) {
++	u32 mask = 1 << gpio;
++
++	if (!(ar231x_gpiodev->valid_mask & mask))
++		return;
++
++	ar231x_gpiodev->set(mask, (!!value) * mask);
++}
++
++static inline int gpio_direction_output(unsigned gpio, int value) {
++	u32 mask = 1 << gpio;
++
++	if (!(ar231x_gpiodev->valid_mask & mask))
++		return -ENXIO;
++
++	ar231x_gpiodev->set_output(mask, mask);
++	ar231x_gpiodev->set(mask, (!!value) * mask);
++	return 0;
++}
++
++/* Reads the gpio pin.  Unchecked function */
++static inline int gpio_get_value(unsigned gpio) {
++	u32 mask = 1 << gpio;
++
++	if (!(ar231x_gpiodev->valid_mask & mask))
++		return 0;
++
++	return !!(ar231x_gpiodev->get() & mask);
++}
++
++static inline int gpio_request(unsigned gpio, const char *label) {
++	return 0;
++}
++
++static inline void gpio_free(unsigned gpio) {
++}
++
++/* Returns IRQ to attach for gpio.  Unchecked function */
++static inline int gpio_to_irq(unsigned gpio) {
++	return AR531X_GPIO_IRQ(gpio);
++}
++
++/* Returns gpio for IRQ attached.  Unchecked function */
++static inline int irq_to_gpio(unsigned irq) {
++	return (irq - (AR531X_GPIO_IRQ(0)));
++}
++
++static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
++{
++	return -ENOSYS;
++}
++
++#include <asm-generic/gpio.h> /* cansleep wrappers */
++
++#endif
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/reset.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/reset.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/reset.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/reset.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,6 @@
++#ifndef __AR531X_RESET_H
++#define __AR531X_RESET_H
++
++void ar531x_disable_reset_button(void);
++
++#endif /* __AR531X_RESET_H */
+diff -Nur linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/war.h linux-2.6.37/arch/mips/include/asm/mach-ar231x/war.h
+--- linux-2.6.37.orig/arch/mips/include/asm/mach-ar231x/war.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/arch/mips/include/asm/mach-ar231x/war.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,25 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
++ */
++#ifndef __ASM_MIPS_MACH_ATHEROS_WAR_H
++#define __ASM_MIPS_MACH_ATHEROS_WAR_H
++
++#define R4600_V1_INDEX_ICACHEOP_WAR	0
++#define R4600_V1_HIT_CACHEOP_WAR	0
++#define R4600_V2_HIT_CACHEOP_WAR	0
++#define R5432_CP0_INTERRUPT_WAR		0
++#define BCM1250_M3_WAR			0
++#define SIBYTE_1956_WAR			0
++#define MIPS4K_ICACHE_REFILL_WAR	0
++#define MIPS_CACHE_SYNC_WAR		0
++#define TX49XX_ICACHE_INDEX_INV_WAR	0
++#define RM9000_CDEX_SMP_WAR		0
++#define ICACHE_REFILLS_WORKAROUND_WAR	0
++#define R10000_LLSC_WAR			0
++#define MIPS34K_MISSED_ITLB_WAR		0
++
++#endif /* __ASM_MIPS_MACH_ATHEROS_WAR_H */
+diff -Nur linux-2.6.37.orig/arch/mips/kernel/cevt-r4k.c linux-2.6.37/arch/mips/kernel/cevt-r4k.c
+--- linux-2.6.37.orig/arch/mips/kernel/cevt-r4k.c	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/arch/mips/kernel/cevt-r4k.c	2011-04-12 08:12:01.000000000 +0200
+@@ -168,20 +168,23 @@
+ 	struct clock_event_device *cd;
+ 	unsigned int irq;
+ 
+-	if (!cpu_has_counter || !mips_hpt_frequency)
+-		return -ENXIO;
+-
+-	if (!c0_compare_int_usable())
+-		return -ENXIO;
+-
+ 	/*
+ 	 * With vectored interrupts things are getting platform specific.
+ 	 * get_c0_compare_int is a hook to allow a platform to return the
+ 	 * interrupt number of it's liking.
+ 	 */
+ 	irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
+-	if (get_c0_compare_int)
++	if (get_c0_compare_int) {
+ 		irq = get_c0_compare_int();
++		if ((irq >= MIPS_CPU_IRQ_BASE) && (irq < MIPS_CPU_IRQ_BASE + 8))
++			cp0_compare_irq = irq - MIPS_CPU_IRQ_BASE;
++	}
++
++	if (!cpu_has_counter || !mips_hpt_frequency)
++		return -ENXIO;
++
++	if (!c0_compare_int_usable())
++		return -ENXIO;
+ 
+ 	cd = &per_cpu(mips_clockevent_device, cpu);
+ 
+diff -Nur linux-2.6.37.orig/drivers/mtd/devices/Kconfig linux-2.6.37/drivers/mtd/devices/Kconfig
+--- linux-2.6.37.orig/drivers/mtd/devices/Kconfig	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/drivers/mtd/devices/Kconfig	2011-04-12 08:12:01.000000000 +0200
+@@ -112,6 +112,10 @@
+ 	  Set up your spi devices with the right board-specific platform data,
+ 	  if you want to specify device partitioning.
+ 
++config MTD_AR2315
++	tristate "Atheros AR2315+ SPI Flash support"
++	depends on ATHEROS_AR2315
++
+ config MTD_SLRAM
+ 	tristate "Uncached system RAM"
+ 	help
+diff -Nur linux-2.6.37.orig/drivers/mtd/devices/Makefile linux-2.6.37/drivers/mtd/devices/Makefile
+--- linux-2.6.37.orig/drivers/mtd/devices/Makefile	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/drivers/mtd/devices/Makefile	2011-04-12 08:12:01.000000000 +0200
+@@ -17,3 +17,4 @@
+ obj-$(CONFIG_MTD_DATAFLASH)	+= mtd_dataflash.o
+ obj-$(CONFIG_MTD_M25P80)	+= m25p80.o
+ obj-$(CONFIG_MTD_SST25L)	+= sst25l.o
++obj-$(CONFIG_MTD_AR2315)	+= ar2315.o
+diff -Nur linux-2.6.37.orig/drivers/mtd/devices/ar2315.c linux-2.6.37/drivers/mtd/devices/ar2315.c
+--- linux-2.6.37.orig/drivers/mtd/devices/ar2315.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/drivers/mtd/devices/ar2315.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,517 @@
++
++/*
++ * MTD driver for the SPI Flash Memory support on Atheros AR2315
++ *
++ * Copyright (c) 2005-2006 Atheros Communications Inc.
++ * Copyright (C) 2006-2007 FON Technology, SL.
++ * Copyright (C) 2006-2007 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++ *
++ * This code is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/version.h>
++#include <linux/errno.h>
++#include <linux/slab.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/platform_device.h>
++#include <linux/sched.h>
++#include <linux/root_dev.h>
++#include <linux/delay.h>
++#include <asm/delay.h>
++#include <asm/io.h>
++
++#include <ar2315_spiflash.h>
++#include <ar231x_platform.h>
++#include <ar231x.h>
++
++
++#define SPIFLASH "spiflash: "
++#define busy_wait(_priv, _condition, _wait) do { \
++	while (_condition) { \
++		spin_unlock_bh(&_priv->lock); \
++		if (_wait > 1) \
++			msleep(_wait); \
++		else if ((_wait == 1) && need_resched()) \
++			schedule(); \
++		else \
++			udelay(1); \
++		spin_lock_bh(&_priv->lock); \
++	} \
++} while (0)
++
++enum {
++	FLASH_NONE,
++	FLASH_1MB,
++	FLASH_2MB,
++	FLASH_4MB,
++	FLASH_8MB,
++	FLASH_16MB,
++};
++
++/* Flash configuration table */
++struct flashconfig {
++	u32 byte_cnt;
++	u32 sector_cnt;
++	u32 sector_size;
++};
++
++const struct flashconfig flashconfig_tbl[] = {
++	[FLASH_NONE] = { 0, 0, 0},
++	[FLASH_1MB]  = { STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT, STM_1MB_SECTOR_SIZE},
++	[FLASH_2MB]  = { STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT, STM_2MB_SECTOR_SIZE},
++	[FLASH_4MB]  = { STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT, STM_4MB_SECTOR_SIZE},
++	[FLASH_8MB]  = { STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT, STM_8MB_SECTOR_SIZE},
++	[FLASH_16MB] = { STM_16MB_BYTE_COUNT, STM_16MB_SECTOR_COUNT, STM_16MB_SECTOR_SIZE}
++};
++
++/* Mapping of generic opcodes to STM serial flash opcodes */
++enum {
++	SPI_WRITE_ENABLE,
++	SPI_WRITE_DISABLE,
++	SPI_RD_STATUS,
++	SPI_WR_STATUS,
++	SPI_RD_DATA,
++	SPI_FAST_RD_DATA,
++	SPI_PAGE_PROGRAM,
++	SPI_SECTOR_ERASE,
++	SPI_BULK_ERASE,
++	SPI_DEEP_PWRDOWN,
++	SPI_RD_SIG,
++};
++
++struct opcodes {
++    __u16 code;
++    __s8 tx_cnt;
++    __s8 rx_cnt;
++};
++const struct opcodes stm_opcodes[] = {
++	[SPI_WRITE_ENABLE] = {STM_OP_WR_ENABLE, 1, 0},
++	[SPI_WRITE_DISABLE] = {STM_OP_WR_DISABLE, 1, 0},
++	[SPI_RD_STATUS] = {STM_OP_RD_STATUS, 1, 1},
++	[SPI_WR_STATUS] = {STM_OP_WR_STATUS, 1, 0},
++	[SPI_RD_DATA] = {STM_OP_RD_DATA, 4, 4},
++	[SPI_FAST_RD_DATA] = {STM_OP_FAST_RD_DATA, 5, 0},
++	[SPI_PAGE_PROGRAM] = {STM_OP_PAGE_PGRM, 8, 0},
++	[SPI_SECTOR_ERASE] = {STM_OP_SECTOR_ERASE, 4, 0},
++	[SPI_BULK_ERASE] = {STM_OP_BULK_ERASE, 1, 0},
++	[SPI_DEEP_PWRDOWN] = {STM_OP_DEEP_PWRDOWN, 1, 0},
++	[SPI_RD_SIG] = {STM_OP_RD_SIG, 4, 1},
++};
++
++/* Driver private data structure */
++struct spiflash_priv {
++	struct mtd_info mtd;
++	void *readaddr; /* memory mapped data for read  */
++	void *mmraddr;  /* memory mapped register space */
++	wait_queue_head_t wq;
++	spinlock_t lock;
++	int state;
++};
++
++#define to_spiflash(_mtd) container_of(_mtd, struct spiflash_priv, mtd)
++
++enum {
++	FL_READY,
++	FL_READING,
++	FL_ERASING,
++	FL_WRITING
++};
++
++/***************************************************************************************************/
++
++static u32
++spiflash_read_reg(struct spiflash_priv *priv, int reg)
++{
++	return ar231x_read_reg((u32) priv->mmraddr + reg);
++}
++
++static void
++spiflash_write_reg(struct spiflash_priv *priv, int reg, u32 data)
++{
++	ar231x_write_reg((u32) priv->mmraddr + reg, data);
++}
++
++static u32
++spiflash_wait_busy(struct spiflash_priv *priv)
++{
++	u32 reg;
++
++	busy_wait(priv, (reg = spiflash_read_reg(priv, SPI_FLASH_CTL)) &
++		SPI_CTL_BUSY, 0);
++	return reg;
++}
++
++static u32
++spiflash_sendcmd (struct spiflash_priv *priv, int opcode, u32 addr)
++{
++	const struct opcodes *op;
++	u32 reg, mask;
++
++	op = &stm_opcodes[opcode];
++	reg = spiflash_wait_busy(priv);
++	spiflash_write_reg(priv, SPI_FLASH_OPCODE,
++		((u32) op->code) | (addr << 8));
++
++	reg &= ~SPI_CTL_TX_RX_CNT_MASK;
++	reg |= SPI_CTL_START | op->tx_cnt | (op->rx_cnt << 4);
++
++	spiflash_write_reg(priv, SPI_FLASH_CTL, reg);
++	spiflash_wait_busy(priv);
++
++	if (!op->rx_cnt)
++		return 0;
++
++	reg = spiflash_read_reg(priv, SPI_FLASH_DATA);
++
++	switch (op->rx_cnt) {
++	case 1:
++		mask = 0x000000ff;
++		break;
++	case 2:
++		mask = 0x0000ffff;
++		break;
++	case 3:
++		mask = 0x00ffffff;
++		break;
++	default:
++		mask = 0xffffffff;
++		break;
++	}
++	reg &= mask;
++
++	return reg;
++}
++
++
++/*
++ * Probe SPI flash device
++ * Function returns 0 for failure.
++ * and flashconfig_tbl array index for success.
++ */
++static int
++spiflash_probe_chip (struct spiflash_priv *priv)
++{
++	u32 sig;
++	int flash_size;
++
++	/* Read the signature on the flash device */
++	spin_lock_bh(&priv->lock);
++	sig = spiflash_sendcmd(priv, SPI_RD_SIG, 0);
++	spin_unlock_bh(&priv->lock);
++
++	switch (sig) {
++	case STM_8MBIT_SIGNATURE:
++		flash_size = FLASH_1MB;
++		break;
++	case STM_16MBIT_SIGNATURE:
++		flash_size = FLASH_2MB;
++		break;
++	case STM_32MBIT_SIGNATURE:
++		flash_size = FLASH_4MB;
++		break;
++	case STM_64MBIT_SIGNATURE:
++		flash_size = FLASH_8MB;
++		break;
++	case STM_128MBIT_SIGNATURE:
++		flash_size = FLASH_16MB;
++		break;
++	default:
++		printk (KERN_WARNING SPIFLASH "Read of flash device signature failed!\n");
++		return 0;
++	}
++
++	return flash_size;
++}
++
++
++/* wait until the flash chip is ready and grab a lock */
++static int spiflash_wait_ready(struct spiflash_priv *priv, int state)
++{
++	DECLARE_WAITQUEUE(wait, current);
++
++retry:
++	spin_lock_bh(&priv->lock);
++	if (priv->state != FL_READY) {
++		set_current_state(TASK_UNINTERRUPTIBLE);
++		add_wait_queue(&priv->wq, &wait);
++		spin_unlock_bh(&priv->lock);
++		schedule();
++		remove_wait_queue(&priv->wq, &wait);
++
++		if(signal_pending(current))
++			return 0;
++
++		goto retry;
++	}
++	priv->state = state;
++
++	return 1;
++}
++
++static inline void spiflash_done(struct spiflash_priv *priv)
++{
++	priv->state = FL_READY;
++	spin_unlock_bh(&priv->lock);
++	wake_up(&priv->wq);
++}
++
++static void
++spiflash_wait_complete(struct spiflash_priv *priv, unsigned int timeout)
++{
++	busy_wait(priv, spiflash_sendcmd(priv, SPI_RD_STATUS, 0) &
++		SPI_STATUS_WIP, timeout);
++	spiflash_done(priv);
++}
++
++
++
++static int
++spiflash_erase (struct mtd_info *mtd, struct erase_info *instr)
++{
++	struct spiflash_priv *priv = to_spiflash(mtd);
++	const struct opcodes *op;
++	u32 temp, reg;
++
++	if (instr->addr + instr->len > mtd->size)
++		return -EINVAL;
++
++	if (!spiflash_wait_ready(priv, FL_ERASING))
++		return -EINTR;
++
++	spiflash_sendcmd(priv, SPI_WRITE_ENABLE, 0);
++	reg = spiflash_wait_busy(priv);
++
++	op = &stm_opcodes[SPI_SECTOR_ERASE];
++	temp = ((u32)instr->addr << 8) | (u32)(op->code);
++	spiflash_write_reg(priv, SPI_FLASH_OPCODE, temp);
++
++	reg &= ~SPI_CTL_TX_RX_CNT_MASK;
++	reg |= op->tx_cnt | SPI_CTL_START;
++	spiflash_write_reg(priv, SPI_FLASH_CTL, reg);
++
++	spiflash_wait_complete(priv, 20);
++
++	instr->state = MTD_ERASE_DONE;
++	mtd_erase_callback(instr);
++
++	return 0;
++}
++
++static int
++spiflash_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
++{
++	struct spiflash_priv *priv = to_spiflash(mtd);
++	u8 *read_addr;
++
++	if (!len)
++		return 0;
++
++	if (from + len > mtd->size)
++		return -EINVAL;
++
++	*retlen = len;
++
++	if (!spiflash_wait_ready(priv, FL_READING))
++		return -EINTR;
++
++	read_addr = (u8 *)(priv->readaddr + from);
++	memcpy_fromio(buf, read_addr, len);
++	spiflash_done(priv);
++
++	return 0;
++}
++
++static int
++spiflash_write (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u8 *buf)
++{
++	struct spiflash_priv *priv = to_spiflash(mtd);
++	u32 opcode, bytes_left;
++
++	*retlen = 0;
++
++	if (!len)
++		return 0;
++
++	if (to + len > mtd->size)
++		return -EINVAL;
++
++	bytes_left = len;
++
++	do {
++		u32 read_len, reg, page_offset, spi_data = 0;
++
++		read_len = min(bytes_left, sizeof(u32));
++
++		/* 32-bit writes cannot span across a page boundary
++		 * (256 bytes). This types of writes require two page
++		 * program operations to handle it correctly. The STM part
++		 * will write the overflow data to the beginning of the
++		 * current page as opposed to the subsequent page.
++		 */
++		page_offset = (to & (STM_PAGE_SIZE - 1)) + read_len;
++
++		if (page_offset > STM_PAGE_SIZE)
++			read_len -= (page_offset - STM_PAGE_SIZE);
++
++		if (!spiflash_wait_ready(priv, FL_WRITING))
++			return -EINTR;
++
++		spiflash_sendcmd(priv, SPI_WRITE_ENABLE, 0);
++		spi_data = 0;
++		switch (read_len) {
++		case 4:
++			spi_data |= buf[3] << 24;
++			/* fall through */
++		case 3:
++			spi_data |= buf[2] << 16;
++			/* fall through */
++		case 2:
++			spi_data |= buf[1] << 8;
++			/* fall through */
++		case 1:
++			spi_data |= buf[0] & 0xff;
++			break;
++		default:
++			break;
++		}
++
++		spiflash_write_reg(priv, SPI_FLASH_DATA, spi_data);
++		opcode = stm_opcodes[SPI_PAGE_PROGRAM].code |
++			(to & 0x00ffffff) << 8;
++		spiflash_write_reg(priv, SPI_FLASH_OPCODE, opcode);
++
++		reg = spiflash_read_reg(priv, SPI_FLASH_CTL);
++		reg &= ~SPI_CTL_TX_RX_CNT_MASK;
++		reg |= (read_len + 4) | SPI_CTL_START;
++		spiflash_write_reg(priv, SPI_FLASH_CTL, reg);
++
++		spiflash_wait_complete(priv, 1);
++
++		bytes_left -= read_len;
++		to += read_len;
++		buf += read_len;
++
++		*retlen += read_len;
++	} while (bytes_left != 0);
++
++	return 0;
++}
++
++
++#ifdef CONFIG_MTD_PARTITIONS
++static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", "MyLoader", NULL };
++#endif
++
++
++static int
++spiflash_probe(struct platform_device *pdev)
++{
++	struct spiflash_priv *priv;
++	struct mtd_partition *parts;
++	struct mtd_info *mtd;
++	int index, num_parts;
++	int result = 0;
++
++	priv = kzalloc(sizeof(struct spiflash_priv), GFP_KERNEL);
++	spin_lock_init(&priv->lock);
++	init_waitqueue_head(&priv->wq);
++	priv->state = FL_READY;
++	mtd = &priv->mtd;
++
++	priv->mmraddr = ioremap_nocache(SPI_FLASH_MMR, SPI_FLASH_MMR_SIZE);
++	if (!priv->mmraddr) {
++		printk(KERN_WARNING SPIFLASH "Failed to map flash device\n");
++		goto error;
++	}
++
++	index = spiflash_probe_chip(priv);
++	if (!index) {
++		printk (KERN_WARNING SPIFLASH "Found no serial flash device\n");
++		goto error;
++	}
++
++	priv->readaddr = ioremap_nocache(SPI_FLASH_READ, flashconfig_tbl[index].byte_cnt);
++	if (!priv->readaddr) {
++		printk (KERN_WARNING SPIFLASH "Failed to map flash device\n");
++		goto error;
++	}
++
++	platform_set_drvdata(pdev, priv);
++	mtd->name = "spiflash";
++	mtd->type = MTD_NORFLASH;
++	mtd->flags = (MTD_CAP_NORFLASH|MTD_WRITEABLE);
++	mtd->size = flashconfig_tbl[index].byte_cnt;
++	mtd->erasesize = flashconfig_tbl[index].sector_size;
++	mtd->writesize = 1;
++	mtd->numeraseregions = 0;
++	mtd->eraseregions = NULL;
++	mtd->erase = spiflash_erase;
++	mtd->read = spiflash_read;
++	mtd->write = spiflash_write;
++	mtd->owner = THIS_MODULE;
++
++#ifdef CONFIG_MTD_PARTITIONS
++	/* parse redboot partitions */
++	num_parts = parse_mtd_partitions(mtd, part_probe_types, &parts, 0);
++	if (!num_parts)
++		goto error;
++
++	result = add_mtd_partitions(mtd, parts, num_parts);
++#endif
++
++	return result;
++
++error:
++	if (priv->mmraddr)
++		iounmap(priv->mmraddr);
++	kfree(priv);
++	return -ENXIO;
++}
++
++static int
++spiflash_remove (struct platform_device *pdev)
++{
++	struct spiflash_priv *priv = platform_get_drvdata(pdev);
++	struct mtd_info *mtd = &priv->mtd;
++
++	del_mtd_partitions(mtd);
++	iounmap(priv->mmraddr);
++	iounmap(priv->readaddr);
++	kfree(priv);
++
++	return 0;
++}
++
++struct platform_driver spiflash_driver = {
++	.driver.name = "spiflash",
++	.probe = spiflash_probe,
++	.remove = spiflash_remove,
++};
++
++int __init
++spiflash_init (void)
++{
++	return platform_driver_register(&spiflash_driver);
++}
++
++void __exit
++spiflash_exit (void)
++{
++	return platform_driver_unregister(&spiflash_driver);
++}
++
++module_init (spiflash_init);
++module_exit (spiflash_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("OpenWrt.org, Atheros Communications Inc");
++MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros SOC");
++
+diff -Nur linux-2.6.37.orig/drivers/mtd/redboot.c linux-2.6.37/drivers/mtd/redboot.c
+--- linux-2.6.37.orig/drivers/mtd/redboot.c	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/drivers/mtd/redboot.c	2011-04-12 08:12:01.000000000 +0200
+@@ -55,6 +55,22 @@
+ 	return 1;
+ }
+ 
++static uint32_t mtd_get_offset_erasesize(struct mtd_info *mtd, uint64_t offset)
++{
++	struct mtd_erase_region_info *regions = mtd->eraseregions;
++	int i;
++
++	for (i = 0; i < mtd->numeraseregions; i++) {
++		if (regions[i].offset +
++		    regions[i].numblocks * regions[i].erasesize <= offset)
++			continue;
++
++		return regions[i].erasesize;
++	}
++
++	return mtd->erasesize;
++}
++
+ static int parse_redboot_partitions(struct mtd_info *master,
+                              struct mtd_partition **pparts,
+                              unsigned long fis_origin)
+@@ -70,36 +86,38 @@
+ 	int namelen = 0;
+ 	int nulllen = 0;
+ 	int numslots;
++	int first_slot;
+ 	unsigned long offset;
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+ 	static char nullstring[] = "unallocated";
+ #endif
+ 
++	buf = vmalloc(master->erasesize);
++	if (!buf)
++		return -ENOMEM;
++
++ restart:
+ 	if ( directory < 0 ) {
+ 		offset = master->size + directory * master->erasesize;
+-		while (master->block_isbad && 
++		while (master->block_isbad &&
+ 		       master->block_isbad(master, offset)) {
+ 			if (!offset) {
+ 			nogood:
+ 				printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n");
++				vfree(buf);
+ 				return -EIO;
+ 			}
+ 			offset -= master->erasesize;
+ 		}
+ 	} else {
+ 		offset = directory * master->erasesize;
+-		while (master->block_isbad && 
++		while (master->block_isbad &&
+ 		       master->block_isbad(master, offset)) {
+ 			offset += master->erasesize;
+ 			if (offset == master->size)
+ 				goto nogood;
+ 		}
+ 	}
+-	buf = vmalloc(master->erasesize);
+-
+-	if (!buf)
+-		return -ENOMEM;
+-
+ 	printk(KERN_NOTICE "Searching for RedBoot partition table in %s at offset 0x%lx\n",
+ 	       master->name, offset);
+ 
+@@ -171,13 +189,21 @@
+ 	}
+ 	if (i == numslots) {
+ 		/* Didn't find it */
++		if (offset + master->erasesize < master->size) {
++			/* not at the end of the flash yet, maybe next block :) */
++			directory++;
++			goto restart;
++		}
+ 		printk(KERN_NOTICE "No RedBoot partition table detected in %s\n",
+ 		       master->name);
+ 		ret = 0;
+ 		goto out;
+ 	}
+ 
+-	for (i = 0; i < numslots; i++) {
++	first_slot = (buf[i].flash_base & (master->erasesize - 1)) /
++		     sizeof(struct fis_image_desc);
++
++	for (i = first_slot; i < first_slot + numslots; i++) {
+ 		struct fis_list *new_fl, **prev;
+ 
+ 		if (buf[i].name[0] == 0xff) {
+diff -Nur linux-2.6.37.orig/drivers/net/Kconfig linux-2.6.37/drivers/net/Kconfig
+--- linux-2.6.37.orig/drivers/net/Kconfig	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/drivers/net/Kconfig	2011-04-12 08:12:01.000000000 +0200
+@@ -251,6 +251,12 @@
+ 	help
+ 	  Select this if your platform comes with an external 93CX6 eeprom.
+ 
++config AR231X_ETHERNET
++	tristate "AR231x Ethernet support"
++	depends on ATHEROS_AR231X
++	help
++	  Support for the AR231x/531x ethernet controller
++
+ config MACE
+ 	tristate "MACE (Power Mac ethernet) support"
+ 	depends on PPC_PMAC && PPC32
+diff -Nur linux-2.6.37.orig/drivers/net/Makefile linux-2.6.37/drivers/net/Makefile
+--- linux-2.6.37.orig/drivers/net/Makefile	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/drivers/net/Makefile	2011-04-12 08:12:01.000000000 +0200
+@@ -224,6 +224,7 @@
+ obj-$(CONFIG_KORINA) += korina.o
+ obj-$(CONFIG_MIPS_JAZZ_SONIC) += jazzsonic.o
+ obj-$(CONFIG_MIPS_AU1X00_ENET) += au1000_eth.o
++obj-$(CONFIG_AR231X_ETHERNET) += ar231x.o
+ obj-$(CONFIG_MIPS_SIM_NET) += mipsnet.o
+ obj-$(CONFIG_SGI_IOC3_ETH) += ioc3-eth.o
+ obj-$(CONFIG_DECLANCE) += declance.o
+diff -Nur linux-2.6.37.orig/drivers/net/ar231x.c linux-2.6.37/drivers/net/ar231x.c
+--- linux-2.6.37.orig/drivers/net/ar231x.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/drivers/net/ar231x.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,1327 @@
++/*
++ * ar231x.c: Linux driver for the Atheros AR231x Ethernet device.
++ *
++ * Copyright (C) 2004 by Sameer Dekate <sdekate@arubanetworks.com>
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++ *
++ * Thanks to Atheros for providing hardware and documentation
++ * enabling me to write this driver.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * Additional credits:
++ * 	This code is taken from John Taylor's Sibyte driver and then
++ * 	modified for the AR2313.
++ */
++
++#include <linux/module.h>
++#include <linux/version.h>
++#include <linux/types.h>
++#include <linux/errno.h>
++#include <linux/ioport.h>
++#include <linux/pci.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/skbuff.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/mm.h>
++#include <linux/highmem.h>
++#include <linux/sockios.h>
++#include <linux/pkt_sched.h>
++#include <linux/mii.h>
++#include <linux/phy.h>
++#include <linux/ethtool.h>
++#include <linux/ctype.h>
++#include <linux/platform_device.h>
++
++#include <net/sock.h>
++#include <net/ip.h>
++
++#include <asm/system.h>
++#include <asm/io.h>
++#include <asm/irq.h>
++#include <asm/byteorder.h>
++#include <asm/uaccess.h>
++#include <asm/bootinfo.h>
++
++#define AR2313_MTU                     1692
++#define AR2313_PRIOS                   1
++#define AR2313_QUEUES                  (2*AR2313_PRIOS)
++#define AR2313_DESCR_ENTRIES           64
++
++
++#ifndef min
++#define min(a,b)	(((a)<(b))?(a):(b))
++#endif
++
++#ifndef SMP_CACHE_BYTES
++#define SMP_CACHE_BYTES	L1_CACHE_BYTES
++#endif
++
++#define AR2313_MBOX_SET_BIT  0x8
++
++#include "ar231x.h"
++
++/*
++ * New interrupt handler strategy:
++ *
++ * An old interrupt handler worked using the traditional method of
++ * replacing an skbuff with a new one when a packet arrives. However
++ * the rx rings do not need to contain a static number of buffer
++ * descriptors, thus it makes sense to move the memory allocation out
++ * of the main interrupt handler and do it in a bottom half handler
++ * and only allocate new buffers when the number of buffers in the
++ * ring is below a certain threshold. In order to avoid starving the
++ * NIC under heavy load it is however necessary to force allocation
++ * when hitting a minimum threshold. The strategy for alloction is as
++ * follows:
++ *
++ *     RX_LOW_BUF_THRES    - allocate buffers in the bottom half
++ *     RX_PANIC_LOW_THRES  - we are very low on buffers, allocate
++ *                           the buffers in the interrupt handler
++ *     RX_RING_THRES       - maximum number of buffers in the rx ring
++ *
++ * One advantagous side effect of this allocation approach is that the
++ * entire rx processing can be done without holding any spin lock
++ * since the rx rings and registers are totally independent of the tx
++ * ring and its registers.  This of course includes the kmalloc's of
++ * new skb's. Thus start_xmit can run in parallel with rx processing
++ * and the memory allocation on SMP systems.
++ *
++ * Note that running the skb reallocation in a bottom half opens up
++ * another can of races which needs to be handled properly. In
++ * particular it can happen that the interrupt handler tries to run
++ * the reallocation while the bottom half is either running on another
++ * CPU or was interrupted on the same CPU. To get around this the
++ * driver uses bitops to prevent the reallocation routines from being
++ * reentered.
++ *
++ * TX handling can also be done without holding any spin lock, wheee
++ * this is fun! since tx_csm is only written to by the interrupt
++ * handler.
++ */
++
++/*
++ * Threshold values for RX buffer allocation - the low water marks for
++ * when to start refilling the rings are set to 75% of the ring
++ * sizes. It seems to make sense to refill the rings entirely from the
++ * intrrupt handler once it gets below the panic threshold, that way
++ * we don't risk that the refilling is moved to another CPU when the
++ * one running the interrupt handler just got the slab code hot in its
++ * cache.
++ */
++#define RX_RING_SIZE		AR2313_DESCR_ENTRIES
++#define RX_PANIC_THRES	        (RX_RING_SIZE/4)
++#define RX_LOW_THRES	        ((3*RX_RING_SIZE)/4)
++#define CRC_LEN                 4
++#define RX_OFFSET               2
++
++#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
++#define VLAN_HDR                4
++#else
++#define VLAN_HDR                0
++#endif
++
++#define AR2313_BUFSIZE		(AR2313_MTU + VLAN_HDR + ETH_HLEN + CRC_LEN + RX_OFFSET)
++
++#ifdef MODULE
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Sameer Dekate <sdekate@arubanetworks.com>, Imre Kaloz <kaloz@openwrt.org>, Felix Fietkau <nbd@openwrt.org>");
++MODULE_DESCRIPTION("AR231x Ethernet driver");
++#endif
++
++#define virt_to_phys(x) ((u32)(x) & 0x1fffffff)
++
++// prototypes
++static void ar231x_halt(struct net_device *dev);
++static void rx_tasklet_func(unsigned long data);
++static void rx_tasklet_cleanup(struct net_device *dev);
++static void ar231x_multicast_list(struct net_device *dev);
++static void ar231x_tx_timeout(struct net_device *dev);
++
++static int ar231x_mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum);
++static int ar231x_mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum, u16 value);
++static int ar231x_mdiobus_reset(struct mii_bus *bus);
++static int ar231x_mdiobus_probe (struct net_device *dev);
++static void ar231x_adjust_link(struct net_device *dev);
++static bool no_phy = false;
++
++#ifndef ERR
++#define ERR(fmt, args...) printk("%s: " fmt, __func__, ##args)
++#endif
++
++#ifdef CONFIG_NET_POLL_CONTROLLER
++static void
++ar231x_netpoll(struct net_device *dev)
++{
++      unsigned long flags;
++
++      local_irq_save(flags);
++      ar231x_interrupt(dev->irq, dev);
++      local_irq_restore(flags);
++}
++#endif
++
++static const struct net_device_ops ar231x_ops = {
++	.ndo_open 		= ar231x_open,
++	.ndo_stop 		= ar231x_close,
++	.ndo_start_xmit 	= ar231x_start_xmit,
++	.ndo_set_multicast_list = ar231x_multicast_list,
++	.ndo_do_ioctl 		= ar231x_ioctl,
++	.ndo_change_mtu 	= eth_change_mtu,
++	.ndo_validate_addr	= eth_validate_addr,
++	.ndo_set_mac_address 	= eth_mac_addr,
++	.ndo_tx_timeout		= ar231x_tx_timeout,
++#ifdef CONFIG_NET_POLL_CONTROLLER
++	.ndo_poll_controller	= ar231x_netpoll,
++#endif
++};
++
++int __init ar231x_probe(struct platform_device *pdev)
++{
++	struct net_device *dev;
++	struct ar231x_private *sp;
++	struct resource *res;
++	unsigned long ar_eth_base;
++	char buf[64];
++
++	dev = alloc_etherdev(sizeof(struct ar231x_private));
++
++	if (dev == NULL) {
++		printk(KERN_ERR
++			   "ar231x: Unable to allocate net_device structure!\n");
++		return -ENOMEM;
++	}
++
++	platform_set_drvdata(pdev, dev);
++
++	sp = netdev_priv(dev);
++	sp->dev = dev;
++	sp->cfg = pdev->dev.platform_data;
++
++	sprintf(buf, "eth%d_membase", pdev->id);
++	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, buf);
++	if (!res)
++		return -ENODEV;
++
++	sp->link = 0;
++	ar_eth_base = res->start;
++
++	sprintf(buf, "eth%d_irq", pdev->id);
++	dev->irq = platform_get_irq_byname(pdev, buf);
++
++	spin_lock_init(&sp->lock);
++
++	dev->features |= NETIF_F_HIGHDMA;
++	dev->netdev_ops = &ar231x_ops;
++
++	tasklet_init(&sp->rx_tasklet, rx_tasklet_func, (unsigned long) dev);
++	tasklet_disable(&sp->rx_tasklet);
++
++	sp->eth_regs =
++		ioremap_nocache(virt_to_phys(ar_eth_base), sizeof(*sp->eth_regs));
++	if (!sp->eth_regs) {
++		printk("Can't remap eth registers\n");
++		return (-ENXIO);
++	}
++
++	/*
++	 * When there's only one MAC, PHY regs are typically on ENET0,
++	 * even though the MAC might be on ENET1.
++	 * Needto remap PHY regs separately in this case
++	 */
++	if (virt_to_phys(ar_eth_base) == virt_to_phys(sp->phy_regs))
++		sp->phy_regs = sp->eth_regs;
++	else {
++		sp->phy_regs =
++			ioremap_nocache(virt_to_phys(sp->cfg->phy_base),
++							sizeof(*sp->phy_regs));
++		if (!sp->phy_regs) {
++			printk("Can't remap phy registers\n");
++			return (-ENXIO);
++		}
++	}
++
++	sp->dma_regs =
++		ioremap_nocache(virt_to_phys(ar_eth_base + 0x1000),
++						sizeof(*sp->dma_regs));
++	dev->base_addr = (unsigned int) sp->dma_regs;
++	if (!sp->dma_regs) {
++		printk("Can't remap DMA registers\n");
++		return (-ENXIO);
++	}
++
++	sp->int_regs = ioremap_nocache(virt_to_phys(sp->cfg->reset_base), 4);
++	if (!sp->int_regs) {
++		printk("Can't remap INTERRUPT registers\n");
++		return (-ENXIO);
++	}
++
++	strncpy(sp->name, "Atheros AR231x", sizeof(sp->name) - 1);
++	sp->name[sizeof(sp->name) - 1] = '\0';
++	memcpy(dev->dev_addr, sp->cfg->macaddr, 6);
++
++	if (ar231x_init(dev)) {
++		/*
++		 * ar231x_init() calls ar231x_init_cleanup() on error.
++		 */
++		kfree(dev);
++		return -ENODEV;
++	}
++
++	if (register_netdev(dev)) {
++		printk("%s: register_netdev failed\n", __func__);
++		return -1;
++	}
++
++	printk("%s: %s: %02x:%02x:%02x:%02x:%02x:%02x, irq %d\n",
++		   dev->name, sp->name,
++		   dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
++		   dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5], dev->irq);
++
++	sp->mii_bus = mdiobus_alloc();
++	if (sp->mii_bus == NULL)
++		return -1;
++
++	sp->mii_bus->priv = dev;
++	sp->mii_bus->read = ar231x_mdiobus_read;
++	sp->mii_bus->write = ar231x_mdiobus_write;
++	sp->mii_bus->reset = ar231x_mdiobus_reset;
++	sp->mii_bus->name = "ar231x_eth_mii";
++	snprintf(sp->mii_bus->id, MII_BUS_ID_SIZE, "%d", pdev->id);
++	sp->mii_bus->irq = kmalloc(sizeof(int), GFP_KERNEL);
++	*sp->mii_bus->irq = PHY_POLL;
++
++	mdiobus_register(sp->mii_bus);
++
++	/* Workaround for Micrel switch, which is only available on
++	 * one PHY and cannot be configured through MDIO */
++	if (!no_phy) {
++		u32 phy_id = 0;
++		get_phy_id(sp->mii_bus, 1, &phy_id);
++		if (phy_id == 0x00221450)
++			no_phy = true;
++	}
++	if (no_phy) {
++		sp->link = 1;
++		netif_carrier_on(dev);
++		return 0;
++	}
++	no_phy = true;
++
++	if (ar231x_mdiobus_probe(dev) != 0) {
++		printk(KERN_ERR "%s: mdiobus_probe failed\n", dev->name);
++		rx_tasklet_cleanup(dev);
++		ar231x_init_cleanup(dev);
++		unregister_netdev(dev);
++		kfree(dev);
++		return -ENODEV;
++	}
++
++	/* start link poll timer */
++	ar231x_setup_timer(dev);
++
++	return 0;
++}
++
++
++static void ar231x_multicast_list(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	unsigned int filter;
++
++	filter = sp->eth_regs->mac_control;
++
++	if (dev->flags & IFF_PROMISC)
++		filter |= MAC_CONTROL_PR;
++	else
++		filter &= ~MAC_CONTROL_PR;
++	if ((dev->flags & IFF_ALLMULTI) || (netdev_mc_count(dev) > 0))
++		filter |= MAC_CONTROL_PM;
++	else
++		filter &= ~MAC_CONTROL_PM;
++
++	sp->eth_regs->mac_control = filter;
++}
++
++static void rx_tasklet_cleanup(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++
++	/*
++	 * Tasklet may be scheduled. Need to get it removed from the list
++	 * since we're about to free the struct.
++	 */
++
++	sp->unloading = 1;
++	tasklet_enable(&sp->rx_tasklet);
++	tasklet_kill(&sp->rx_tasklet);
++}
++
++static int __devexit ar231x_remove(struct platform_device *pdev)
++{
++	struct net_device *dev = platform_get_drvdata(pdev);
++	struct ar231x_private *sp = netdev_priv(dev);
++	rx_tasklet_cleanup(dev);
++	ar231x_init_cleanup(dev);
++	unregister_netdev(dev);
++	if (sp->mii_bus) {
++		mdiobus_unregister(sp->mii_bus);
++		mdiobus_free(sp->mii_bus);
++	}
++	kfree(dev);
++	return 0;
++}
++
++
++/*
++ * Restart the AR2313 ethernet controller.
++ */
++static int ar231x_restart(struct net_device *dev)
++{
++	/* disable interrupts */
++	disable_irq(dev->irq);
++
++	/* stop mac */
++	ar231x_halt(dev);
++
++	/* initialize */
++	ar231x_init(dev);
++
++	/* enable interrupts */
++	enable_irq(dev->irq);
++
++	return 0;
++}
++
++static struct platform_driver ar231x_driver = {
++	.driver.name = "ar231x-eth",
++	.probe = ar231x_probe,
++	.remove = __devexit_p(ar231x_remove),
++};
++
++int __init ar231x_module_init(void)
++{
++	return platform_driver_register(&ar231x_driver);
++}
++
++void __exit ar231x_module_cleanup(void)
++{
++	platform_driver_unregister(&ar231x_driver);
++}
++
++module_init(ar231x_module_init);
++module_exit(ar231x_module_cleanup);
++
++
++static void ar231x_free_descriptors(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	if (sp->rx_ring != NULL) {
++		kfree((void *) KSEG0ADDR(sp->rx_ring));
++		sp->rx_ring = NULL;
++		sp->tx_ring = NULL;
++	}
++}
++
++
++static int ar231x_allocate_descriptors(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	int size;
++	int j;
++	ar231x_descr_t *space;
++
++	if (sp->rx_ring != NULL) {
++		printk("%s: already done.\n", __FUNCTION__);
++		return 0;
++	}
++
++	size =
++		(sizeof(ar231x_descr_t) * (AR2313_DESCR_ENTRIES * AR2313_QUEUES));
++	space = kmalloc(size, GFP_KERNEL);
++	if (space == NULL)
++		return 1;
++
++	/* invalidate caches */
++	dma_cache_inv((unsigned int) space, size);
++
++	/* now convert pointer to KSEG1 */
++	space = (ar231x_descr_t *) KSEG1ADDR(space);
++
++	memset((void *) space, 0, size);
++
++	sp->rx_ring = space;
++	space += AR2313_DESCR_ENTRIES;
++
++	sp->tx_ring = space;
++	space += AR2313_DESCR_ENTRIES;
++
++	/* Initialize the transmit Descriptors */
++	for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
++		ar231x_descr_t *td = &sp->tx_ring[j];
++		td->status = 0;
++		td->devcs = DMA_TX1_CHAINED;
++		td->addr = 0;
++		td->descr =
++			virt_to_phys(&sp->
++						 tx_ring[(j + 1) & (AR2313_DESCR_ENTRIES - 1)]);
++	}
++
++	return 0;
++}
++
++
++/*
++ * Generic cleanup handling data allocated during init. Used when the
++ * module is unloaded or if an error occurs during initialization
++ */
++static void ar231x_init_cleanup(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	struct sk_buff *skb;
++	int j;
++
++	ar231x_free_descriptors(dev);
++
++	if (sp->eth_regs)
++		iounmap((void *) sp->eth_regs);
++	if (sp->dma_regs)
++		iounmap((void *) sp->dma_regs);
++
++	if (sp->rx_skb) {
++		for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
++			skb = sp->rx_skb[j];
++			if (skb) {
++				sp->rx_skb[j] = NULL;
++				dev_kfree_skb(skb);
++			}
++		}
++		kfree(sp->rx_skb);
++		sp->rx_skb = NULL;
++	}
++
++	if (sp->tx_skb) {
++		for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
++			skb = sp->tx_skb[j];
++			if (skb) {
++				sp->tx_skb[j] = NULL;
++				dev_kfree_skb(skb);
++			}
++		}
++		kfree(sp->tx_skb);
++		sp->tx_skb = NULL;
++	}
++}
++
++static int ar231x_setup_timer(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++
++	init_timer(&sp->link_timer);
++
++	sp->link_timer.function = ar231x_link_timer_fn;
++	sp->link_timer.data = (int) dev;
++	sp->link_timer.expires = jiffies + HZ;
++
++	add_timer(&sp->link_timer);
++	return 0;
++
++}
++
++static void ar231x_link_timer_fn(unsigned long data)
++{
++	struct net_device *dev = (struct net_device *) data;
++	struct ar231x_private *sp = netdev_priv(dev);
++
++	// see if the link status changed
++	// This was needed to make sure we set the PHY to the
++	// autonegotiated value of half or full duplex.
++	ar231x_check_link(dev);
++
++	// Loop faster when we don't have link.
++	// This was needed to speed up the AP bootstrap time.
++	if (sp->link == 0) {
++		mod_timer(&sp->link_timer, jiffies + HZ / 2);
++	} else {
++		mod_timer(&sp->link_timer, jiffies + LINK_TIMER);
++	}
++}
++
++static void ar231x_check_link(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	u16 phyData;
++
++	phyData = ar231x_mdiobus_read(sp->mii_bus, sp->phy, MII_BMSR);
++	if (sp->phyData != phyData) {
++		if (phyData & BMSR_LSTATUS) {
++			/* link is present, ready link partner ability to deterine
++			   duplexity */
++			int duplex = 0;
++			u16 reg;
++
++			sp->link = 1;
++			reg = ar231x_mdiobus_read(sp->mii_bus, sp->phy, MII_BMCR);
++			if (reg & BMCR_ANENABLE) {
++				/* auto neg enabled */
++				reg = ar231x_mdiobus_read(sp->mii_bus, sp->phy, MII_LPA);
++				duplex = (reg & (LPA_100FULL | LPA_10FULL)) ? 1 : 0;
++			} else {
++				/* no auto neg, just read duplex config */
++				duplex = (reg & BMCR_FULLDPLX) ? 1 : 0;
++			}
++
++			printk(KERN_INFO "%s: Configuring MAC for %s duplex\n",
++				   dev->name, (duplex) ? "full" : "half");
++
++			if (duplex) {
++				/* full duplex */
++				sp->eth_regs->mac_control =
++					((sp->eth_regs->
++					  mac_control | MAC_CONTROL_F) & ~MAC_CONTROL_DRO);
++			} else {
++				/* half duplex */
++				sp->eth_regs->mac_control =
++					((sp->eth_regs->
++					  mac_control | MAC_CONTROL_DRO) & ~MAC_CONTROL_F);
++			}
++		} else {
++			/* no link */
++			sp->link = 0;
++		}
++		sp->phyData = phyData;
++	}
++}
++
++static int ar231x_reset_reg(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	unsigned int ethsal, ethsah;
++	unsigned int flags;
++
++	*sp->int_regs |= sp->cfg->reset_mac;
++	mdelay(10);
++	*sp->int_regs &= ~sp->cfg->reset_mac;
++	mdelay(10);
++	*sp->int_regs |= sp->cfg->reset_phy;
++	mdelay(10);
++	*sp->int_regs &= ~sp->cfg->reset_phy;
++	mdelay(10);
++
++	sp->dma_regs->bus_mode = (DMA_BUS_MODE_SWR);
++	mdelay(10);
++	sp->dma_regs->bus_mode =
++		((32 << DMA_BUS_MODE_PBL_SHIFT) | DMA_BUS_MODE_BLE);
++
++	/* enable interrupts */
++	sp->dma_regs->intr_ena = (DMA_STATUS_AIS |
++							  DMA_STATUS_NIS |
++							  DMA_STATUS_RI |
++							  DMA_STATUS_TI | DMA_STATUS_FBE);
++	sp->dma_regs->xmt_base = virt_to_phys(sp->tx_ring);
++	sp->dma_regs->rcv_base = virt_to_phys(sp->rx_ring);
++	sp->dma_regs->control =
++		(DMA_CONTROL_SR | DMA_CONTROL_ST | DMA_CONTROL_SF);
++
++	sp->eth_regs->flow_control = (FLOW_CONTROL_FCE);
++	sp->eth_regs->vlan_tag = (0x8100);
++
++	/* Enable Ethernet Interface */
++	flags = (MAC_CONTROL_TE |	/* transmit enable */
++			 MAC_CONTROL_PM |	/* pass mcast */
++			 MAC_CONTROL_F |	/* full duplex */
++			 MAC_CONTROL_HBD);	/* heart beat disabled */
++
++	if (dev->flags & IFF_PROMISC) {	/* set promiscuous mode */
++		flags |= MAC_CONTROL_PR;
++	}
++	sp->eth_regs->mac_control = flags;
++
++	/* Set all Ethernet station address registers to their initial values */
++	ethsah = ((((u_int) (dev->dev_addr[5]) << 8) & (u_int) 0x0000FF00) |
++			  (((u_int) (dev->dev_addr[4]) << 0) & (u_int) 0x000000FF));
++
++	ethsal = ((((u_int) (dev->dev_addr[3]) << 24) & (u_int) 0xFF000000) |
++			  (((u_int) (dev->dev_addr[2]) << 16) & (u_int) 0x00FF0000) |
++			  (((u_int) (dev->dev_addr[1]) << 8) & (u_int) 0x0000FF00) |
++			  (((u_int) (dev->dev_addr[0]) << 0) & (u_int) 0x000000FF));
++
++	sp->eth_regs->mac_addr[0] = ethsah;
++	sp->eth_regs->mac_addr[1] = ethsal;
++
++	mdelay(10);
++
++	return (0);
++}
++
++
++static int ar231x_init(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	int ecode = 0;
++
++	/*
++	 * Allocate descriptors
++	 */
++	if (ar231x_allocate_descriptors(dev)) {
++		printk("%s: %s: ar231x_allocate_descriptors failed\n",
++			   dev->name, __FUNCTION__);
++		ecode = -EAGAIN;
++		goto init_error;
++	}
++
++	/*
++	 * Get the memory for the skb rings.
++	 */
++	if (sp->rx_skb == NULL) {
++		sp->rx_skb =
++			kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES,
++					GFP_KERNEL);
++		if (!(sp->rx_skb)) {
++			printk("%s: %s: rx_skb kmalloc failed\n",
++				   dev->name, __FUNCTION__);
++			ecode = -EAGAIN;
++			goto init_error;
++		}
++	}
++	memset(sp->rx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES);
++
++	if (sp->tx_skb == NULL) {
++		sp->tx_skb =
++			kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES,
++					GFP_KERNEL);
++		if (!(sp->tx_skb)) {
++			printk("%s: %s: tx_skb kmalloc failed\n",
++				   dev->name, __FUNCTION__);
++			ecode = -EAGAIN;
++			goto init_error;
++		}
++	}
++	memset(sp->tx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES);
++
++	/*
++	 * Set tx_csm before we start receiving interrupts, otherwise
++	 * the interrupt handler might think it is supposed to process
++	 * tx ints before we are up and running, which may cause a null
++	 * pointer access in the int handler.
++	 */
++	sp->rx_skbprd = 0;
++	sp->cur_rx = 0;
++	sp->tx_prd = 0;
++	sp->tx_csm = 0;
++
++	/*
++	 * Zero the stats before starting the interface
++	 */
++	memset(&dev->stats, 0, sizeof(dev->stats));
++
++	/*
++	 * We load the ring here as there seem to be no way to tell the
++	 * firmware to wipe the ring without re-initializing it.
++	 */
++	ar231x_load_rx_ring(dev, RX_RING_SIZE);
++
++	/*
++	 * Init hardware
++	 */
++	ar231x_reset_reg(dev);
++
++	/*
++	 * Get the IRQ
++	 */
++	ecode =
++		request_irq(dev->irq, &ar231x_interrupt,
++					IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
++					dev->name, dev);
++	if (ecode) {
++		printk(KERN_WARNING "%s: %s: Requested IRQ %d is busy\n",
++			   dev->name, __FUNCTION__, dev->irq);
++		goto init_error;
++	}
++
++
++	tasklet_enable(&sp->rx_tasklet);
++
++	return 0;
++
++  init_error:
++	ar231x_init_cleanup(dev);
++	return ecode;
++}
++
++/*
++ * Load the rx ring.
++ *
++ * Loading rings is safe without holding the spin lock since this is
++ * done only before the device is enabled, thus no interrupts are
++ * generated and by the interrupt handler/tasklet handler.
++ */
++static void ar231x_load_rx_ring(struct net_device *dev, int nr_bufs)
++{
++
++	struct ar231x_private *sp = netdev_priv(dev);
++	short i, idx;
++
++	idx = sp->rx_skbprd;
++
++	for (i = 0; i < nr_bufs; i++) {
++		struct sk_buff *skb;
++		ar231x_descr_t *rd;
++		int offset = RX_OFFSET;
++
++		if (sp->rx_skb[idx])
++			break;
++
++		skb = netdev_alloc_skb(dev, AR2313_BUFSIZE);
++		if (!skb) {
++			printk("\n\n\n\n %s: No memory in system\n\n\n\n",
++				   __FUNCTION__);
++			break;
++		}
++
++		/*
++		 * Make sure IP header starts on a fresh cache line.
++		 */
++		skb->dev = dev;
++		if (sp->phy_dev)
++			offset += sp->phy_dev->pkt_align;
++		skb_reserve(skb, offset);
++		sp->rx_skb[idx] = skb;
++
++		rd = (ar231x_descr_t *) & sp->rx_ring[idx];
++
++		/* initialize dma descriptor */
++		rd->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) |
++					 DMA_RX1_CHAINED);
++		rd->addr = virt_to_phys(skb->data);
++		rd->descr =
++			virt_to_phys(&sp->
++						 rx_ring[(idx + 1) & (AR2313_DESCR_ENTRIES - 1)]);
++		rd->status = DMA_RX_OWN;
++
++		idx = DSC_NEXT(idx);
++	}
++
++	if (i)
++		sp->rx_skbprd = idx;
++
++	return;
++}
++
++#define AR2313_MAX_PKTS_PER_CALL        64
++
++static int ar231x_rx_int(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	struct sk_buff *skb, *skb_new;
++	ar231x_descr_t *rxdesc;
++	unsigned int status;
++	u32 idx;
++	int pkts = 0;
++	int rval;
++
++	idx = sp->cur_rx;
++
++	/* process at most the entire ring and then wait for another interrupt
++	 */
++	while (1) {
++
++		rxdesc = &sp->rx_ring[idx];
++		status = rxdesc->status;
++		if (status & DMA_RX_OWN) {
++			/* SiByte owns descriptor or descr not yet filled in */
++			rval = 0;
++			break;
++		}
++
++		if (++pkts > AR2313_MAX_PKTS_PER_CALL) {
++			rval = 1;
++			break;
++		}
++
++		if ((status & DMA_RX_ERROR) && !(status & DMA_RX_LONG)) {
++			dev->stats.rx_errors++;
++			dev->stats.rx_dropped++;
++
++			/* add statistics counters */
++			if (status & DMA_RX_ERR_CRC)
++				dev->stats.rx_crc_errors++;
++			if (status & DMA_RX_ERR_COL)
++				dev->stats.rx_over_errors++;
++			if (status & DMA_RX_ERR_LENGTH)
++				dev->stats.rx_length_errors++;
++			if (status & DMA_RX_ERR_RUNT)
++				dev->stats.rx_over_errors++;
++			if (status & DMA_RX_ERR_DESC)
++				dev->stats.rx_over_errors++;
++
++		} else {
++			/* alloc new buffer. */
++			skb_new = netdev_alloc_skb(dev, AR2313_BUFSIZE + RX_OFFSET);
++			if (skb_new != NULL) {
++				int offset;
++
++				skb = sp->rx_skb[idx];
++				/* set skb */
++				skb_put(skb,
++						((status >> DMA_RX_LEN_SHIFT) & 0x3fff) - CRC_LEN);
++				dev->stats.rx_bytes += skb->len;
++
++				/* pass the packet to upper layers */
++				if (sp->rx) {
++					sp->rx(skb);
++				} else {
++					skb->protocol = eth_type_trans(skb, skb->dev);
++					netif_rx(skb);
++				}
++				skb_new->dev = dev;
++
++				/* 16 bit align */
++				offset = RX_OFFSET;
++				if (sp->phy_dev)
++					offset += sp->phy_dev->pkt_align;
++				skb_reserve(skb_new, offset);
++				/* reset descriptor's curr_addr */
++				rxdesc->addr = virt_to_phys(skb_new->data);
++
++				dev->stats.rx_packets++;
++				sp->rx_skb[idx] = skb_new;
++			} else {
++				dev->stats.rx_dropped++;
++			}
++		}
++
++		rxdesc->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) |
++						 DMA_RX1_CHAINED);
++		rxdesc->status = DMA_RX_OWN;
++
++		idx = DSC_NEXT(idx);
++	}
++
++	sp->cur_rx = idx;
++
++	return rval;
++}
++
++
++static void ar231x_tx_int(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	u32 idx;
++	struct sk_buff *skb;
++	ar231x_descr_t *txdesc;
++	unsigned int status = 0;
++
++	idx = sp->tx_csm;
++
++	while (idx != sp->tx_prd) {
++		txdesc = &sp->tx_ring[idx];
++
++		if ((status = txdesc->status) & DMA_TX_OWN) {
++			/* ar231x dma still owns descr */
++			break;
++		}
++		/* done with this descriptor */
++		dma_unmap_single(NULL, txdesc->addr,
++						 txdesc->devcs & DMA_TX1_BSIZE_MASK,
++						 DMA_TO_DEVICE);
++		txdesc->status = 0;
++
++		if (status & DMA_TX_ERROR) {
++			dev->stats.tx_errors++;
++			dev->stats.tx_dropped++;
++			if (status & DMA_TX_ERR_UNDER)
++				dev->stats.tx_fifo_errors++;
++			if (status & DMA_TX_ERR_HB)
++				dev->stats.tx_heartbeat_errors++;
++			if (status & (DMA_TX_ERR_LOSS | DMA_TX_ERR_LINK))
++				dev->stats.tx_carrier_errors++;
++			if (status & (DMA_TX_ERR_LATE |
++						  DMA_TX_ERR_COL |
++						  DMA_TX_ERR_JABBER | DMA_TX_ERR_DEFER))
++				dev->stats.tx_aborted_errors++;
++		} else {
++			/* transmit OK */
++			dev->stats.tx_packets++;
++		}
++
++		skb = sp->tx_skb[idx];
++		sp->tx_skb[idx] = NULL;
++		idx = DSC_NEXT(idx);
++		dev->stats.tx_bytes += skb->len;
++		dev_kfree_skb_irq(skb);
++	}
++
++	sp->tx_csm = idx;
++
++	return;
++}
++
++
++static void rx_tasklet_func(unsigned long data)
++{
++	struct net_device *dev = (struct net_device *) data;
++	struct ar231x_private *sp = netdev_priv(dev);
++
++	if (sp->unloading) {
++		return;
++	}
++
++	if (ar231x_rx_int(dev)) {
++		tasklet_hi_schedule(&sp->rx_tasklet);
++	} else {
++		unsigned long flags;
++		spin_lock_irqsave(&sp->lock, flags);
++		sp->dma_regs->intr_ena |= DMA_STATUS_RI;
++		spin_unlock_irqrestore(&sp->lock, flags);
++	}
++}
++
++static void rx_schedule(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++
++	sp->dma_regs->intr_ena &= ~DMA_STATUS_RI;
++
++	tasklet_hi_schedule(&sp->rx_tasklet);
++}
++
++static irqreturn_t ar231x_interrupt(int irq, void *dev_id)
++{
++	struct net_device *dev = (struct net_device *) dev_id;
++	struct ar231x_private *sp = netdev_priv(dev);
++	unsigned int status, enabled;
++
++	/* clear interrupt */
++	/*
++	 * Don't clear RI bit if currently disabled.
++	 */
++	status = sp->dma_regs->status;
++	enabled = sp->dma_regs->intr_ena;
++	sp->dma_regs->status = status & enabled;
++
++	if (status & DMA_STATUS_NIS) {
++		/* normal status */
++		/*
++		 * Don't schedule rx processing if interrupt
++		 * is already disabled.
++		 */
++		if (status & enabled & DMA_STATUS_RI) {
++			/* receive interrupt */
++			rx_schedule(dev);
++		}
++		if (status & DMA_STATUS_TI) {
++			/* transmit interrupt */
++			ar231x_tx_int(dev);
++		}
++	}
++
++	/* abnormal status */
++	if (status & (DMA_STATUS_FBE | DMA_STATUS_TPS)) {
++		ar231x_restart(dev);
++	}
++	return IRQ_HANDLED;
++}
++
++
++static int ar231x_open(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	unsigned int ethsal, ethsah;
++
++	/* reset the hardware, in case the MAC address changed */
++	ethsah = ((((u_int) (dev->dev_addr[5]) << 8) & (u_int) 0x0000FF00) |
++			  (((u_int) (dev->dev_addr[4]) << 0) & (u_int) 0x000000FF));
++
++	ethsal = ((((u_int) (dev->dev_addr[3]) << 24) & (u_int) 0xFF000000) |
++			  (((u_int) (dev->dev_addr[2]) << 16) & (u_int) 0x00FF0000) |
++			  (((u_int) (dev->dev_addr[1]) << 8) & (u_int) 0x0000FF00) |
++			  (((u_int) (dev->dev_addr[0]) << 0) & (u_int) 0x000000FF));
++
++	sp->eth_regs->mac_addr[0] = ethsah;
++	sp->eth_regs->mac_addr[1] = ethsal;
++
++	mdelay(10);
++
++	dev->mtu = 1500;
++	netif_start_queue(dev);
++
++	sp->eth_regs->mac_control |= MAC_CONTROL_RE;
++
++	return 0;
++}
++
++static void ar231x_tx_timeout(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	unsigned long flags;
++
++	spin_lock_irqsave(&sp->lock, flags);
++	ar231x_restart(dev);
++	spin_unlock_irqrestore(&sp->lock, flags);
++}
++
++static void ar231x_halt(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	int j;
++
++	tasklet_disable(&sp->rx_tasklet);
++
++	/* kill the MAC */
++	sp->eth_regs->mac_control &= ~(MAC_CONTROL_RE |	/* disable Receives */
++								   MAC_CONTROL_TE);	/* disable Transmits */
++	/* stop dma */
++	sp->dma_regs->control = 0;
++	sp->dma_regs->bus_mode = DMA_BUS_MODE_SWR;
++
++	/* place phy and MAC in reset */
++	*sp->int_regs |= (sp->cfg->reset_mac | sp->cfg->reset_phy);
++
++	/* free buffers on tx ring */
++	for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
++		struct sk_buff *skb;
++		ar231x_descr_t *txdesc;
++
++		txdesc = &sp->tx_ring[j];
++		txdesc->descr = 0;
++
++		skb = sp->tx_skb[j];
++		if (skb) {
++			dev_kfree_skb(skb);
++			sp->tx_skb[j] = NULL;
++		}
++	}
++}
++
++/*
++ * close should do nothing. Here's why. It's called when
++ * 'ifconfig bond0 down' is run. If it calls free_irq then
++ * the irq is gone forever ! When bond0 is made 'up' again,
++ * the ar231x_open () does not call request_irq (). Worse,
++ * the call to ar231x_halt() generates a WDOG reset due to
++ * the write to 'sp->int_regs' and the box reboots.
++ * Commenting this out is good since it allows the
++ * system to resume when bond0 is made up again.
++ */
++static int ar231x_close(struct net_device *dev)
++{
++#if 0
++	/*
++	 * Disable interrupts
++	 */
++	disable_irq(dev->irq);
++
++	/*
++	 * Without (or before) releasing irq and stopping hardware, this
++	 * is an absolute non-sense, by the way. It will be reset instantly
++	 * by the first irq.
++	 */
++	netif_stop_queue(dev);
++
++	/* stop the MAC and DMA engines */
++	ar231x_halt(dev);
++
++	/* release the interrupt */
++	free_irq(dev->irq, dev);
++
++#endif
++	return 0;
++}
++
++static int ar231x_start_xmit(struct sk_buff *skb, struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	ar231x_descr_t *td;
++	u32 idx;
++
++	idx = sp->tx_prd;
++	td = &sp->tx_ring[idx];
++
++	if (td->status & DMA_TX_OWN) {
++		/* free skbuf and lie to the caller that we sent it out */
++		dev->stats.tx_dropped++;
++		dev_kfree_skb(skb);
++
++		/* restart transmitter in case locked */
++		sp->dma_regs->xmt_poll = 0;
++		return 0;
++	}
++
++	/* Setup the transmit descriptor. */
++	td->devcs = ((skb->len << DMA_TX1_BSIZE_SHIFT) |
++				 (DMA_TX1_LS | DMA_TX1_IC | DMA_TX1_CHAINED));
++	td->addr = dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE);
++	td->status = DMA_TX_OWN;
++
++	/* kick transmitter last */
++	sp->dma_regs->xmt_poll = 0;
++
++	sp->tx_skb[idx] = skb;
++	idx = DSC_NEXT(idx);
++	sp->tx_prd = idx;
++
++	return 0;
++}
++
++static int ar231x_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
++{
++	struct mii_ioctl_data *data = (struct mii_ioctl_data *) &ifr->ifr_data;
++	struct ar231x_private *sp = netdev_priv(dev);
++	int ret;
++
++	if (!sp->phy_dev)
++		return -ENODEV;
++
++	switch (cmd) {
++
++	case SIOCETHTOOL:
++		spin_lock_irq(&sp->lock);
++		ret = phy_ethtool_ioctl(sp->phy_dev, (void *) ifr->ifr_data);
++		spin_unlock_irq(&sp->lock);
++		return ret;
++
++	case SIOCSIFHWADDR:
++		if (copy_from_user
++			(dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr)))
++			return -EFAULT;
++		return 0;
++
++	case SIOCGIFHWADDR:
++		if (copy_to_user
++			(ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr)))
++			return -EFAULT;
++		return 0;
++
++	case SIOCGMIIPHY:
++	case SIOCGMIIREG:
++	case SIOCSMIIREG:
++		return phy_mii_ioctl(sp->phy_dev, data, cmd);
++
++	default:
++		break;
++	}
++
++	return -EOPNOTSUPP;
++}
++
++static void ar231x_adjust_link(struct net_device *dev)
++{
++	struct ar231x_private *sp = netdev_priv(dev);
++	unsigned int mc;
++
++	if (!sp->phy_dev->link)
++		return;
++
++	if (sp->phy_dev->duplex != sp->oldduplex) {
++		mc = readl(&sp->eth_regs->mac_control);
++		mc &= ~(MAC_CONTROL_F | MAC_CONTROL_DRO);
++		if (sp->phy_dev->duplex)
++			mc |= MAC_CONTROL_F;
++		else
++			mc |= MAC_CONTROL_DRO;
++		writel(mc, &sp->eth_regs->mac_control);
++		sp->oldduplex = sp->phy_dev->duplex;
++	}
++}
++
++#define MII_ADDR(phy, reg) \
++	((reg << MII_ADDR_REG_SHIFT) | (phy << MII_ADDR_PHY_SHIFT))
++
++static int
++ar231x_mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum)
++{
++	struct net_device *const dev = bus->priv;
++	struct ar231x_private *sp = netdev_priv(dev);
++	volatile ETHERNET_STRUCT *ethernet = sp->phy_regs;
++
++	ethernet->mii_addr = MII_ADDR(phy_addr, regnum);
++	while (ethernet->mii_addr & MII_ADDR_BUSY);
++	return (ethernet->mii_data >> MII_DATA_SHIFT);
++}
++
++static int
++ar231x_mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum,
++             u16 value)
++{
++	struct net_device *const dev = bus->priv;
++	struct ar231x_private *sp = netdev_priv(dev);
++	volatile ETHERNET_STRUCT *ethernet = sp->phy_regs;
++
++	while (ethernet->mii_addr & MII_ADDR_BUSY);
++	ethernet->mii_data = value << MII_DATA_SHIFT;
++	ethernet->mii_addr = MII_ADDR(phy_addr, regnum) | MII_ADDR_WRITE;
++
++	return 0;
++}
++
++static int ar231x_mdiobus_reset(struct mii_bus *bus)
++{
++	struct net_device *const dev = bus->priv;
++
++	ar231x_reset_reg(dev);
++
++	return 0;
++}
++
++static int ar231x_mdiobus_probe (struct net_device *dev)
++{
++	struct ar231x_private *const sp = netdev_priv(dev);
++	struct phy_device *phydev = NULL;
++	int phy_addr;
++
++	/* find the first (lowest address) PHY on the current MAC's MII bus */
++	for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++)
++		if (sp->mii_bus->phy_map[phy_addr]) {
++			phydev = sp->mii_bus->phy_map[phy_addr];
++			sp->phy = phy_addr;
++			break; /* break out with first one found */
++		}
++
++	if (!phydev) {
++		printk (KERN_ERR "ar231x: %s: no PHY found\n", dev->name);
++		return -1;
++	}
++
++	/* now we are supposed to have a proper phydev, to attach to... */
++	BUG_ON(!phydev);
++	BUG_ON(phydev->attached_dev);
++
++	phydev = phy_connect(dev, dev_name(&phydev->dev), &ar231x_adjust_link, 0,
++		PHY_INTERFACE_MODE_MII);
++
++	if (IS_ERR(phydev)) {
++		printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
++		return PTR_ERR(phydev);
++	}
++
++	sp->rx = phydev->netif_rx;
++
++	/* mask with MAC supported features */
++	phydev->supported &= (SUPPORTED_10baseT_Half
++		| SUPPORTED_10baseT_Full
++		| SUPPORTED_100baseT_Half
++		| SUPPORTED_100baseT_Full
++		| SUPPORTED_Autoneg
++		/* | SUPPORTED_Pause | SUPPORTED_Asym_Pause */
++		| SUPPORTED_MII
++		| SUPPORTED_TP);
++
++	phydev->advertising = phydev->supported;
++
++	sp->oldduplex = -1;
++	sp->phy_dev = phydev;
++
++	printk(KERN_INFO "%s: attached PHY driver [%s] "
++		"(mii_bus:phy_addr=%s)\n",
++		dev->name, phydev->drv->name, dev_name(&phydev->dev));
++
++	return 0;
++}
++
+diff -Nur linux-2.6.37.orig/drivers/net/ar231x.h linux-2.6.37/drivers/net/ar231x.h
+--- linux-2.6.37.orig/drivers/net/ar231x.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/drivers/net/ar231x.h	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,304 @@
++/*
++ * ar231x.h: Linux driver for the Atheros AR231x Ethernet device.
++ *
++ * Copyright (C) 2004 by Sameer Dekate <sdekate@arubanetworks.com>
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
++ *
++ * Thanks to Atheros for providing hardware and documentation
++ * enabling me to write this driver.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ */
++
++#ifndef _AR2313_H_
++#define _AR2313_H_
++
++#include <generated/autoconf.h>
++#include <linux/bitops.h>
++#include <asm/bootinfo.h>
++#include <ar231x_platform.h>
++
++/*
++ * probe link timer - 5 secs
++ */
++#define LINK_TIMER    (5*HZ)
++
++#define IS_DMA_TX_INT(X)   (((X) & (DMA_STATUS_TI)) != 0)
++#define IS_DMA_RX_INT(X)   (((X) & (DMA_STATUS_RI)) != 0)
++#define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN))    == 0)
++
++#define AR2313_TX_TIMEOUT (HZ/4)
++
++/*
++ * Rings
++ */
++#define DSC_RING_ENTRIES_SIZE	(AR2313_DESCR_ENTRIES * sizeof(struct desc))
++#define DSC_NEXT(idx)	        ((idx + 1) & (AR2313_DESCR_ENTRIES - 1))
++
++#define AR2313_MBGET		2
++#define AR2313_MBSET		3
++#define AR2313_PCI_RECONFIG	4
++#define AR2313_PCI_DUMP		5
++#define AR2313_TEST_PANIC	6
++#define AR2313_TEST_NULLPTR	7
++#define AR2313_READ_DATA	8
++#define AR2313_WRITE_DATA	9
++#define AR2313_GET_VERSION	10
++#define AR2313_TEST_HANG	11
++#define AR2313_SYNC		12
++
++#define DMA_RX_ERR_CRC		BIT(1)
++#define DMA_RX_ERR_DRIB		BIT(2)
++#define DMA_RX_ERR_MII		BIT(3)
++#define DMA_RX_EV2		BIT(5)
++#define DMA_RX_ERR_COL		BIT(6)
++#define DMA_RX_LONG		BIT(7)
++#define DMA_RX_LS		BIT(8)	/* last descriptor */
++#define DMA_RX_FS		BIT(9)	/* first descriptor */
++#define DMA_RX_MF		BIT(10)	/* multicast frame */
++#define DMA_RX_ERR_RUNT		BIT(11)	/* runt frame */
++#define DMA_RX_ERR_LENGTH	BIT(12)	/* length error */
++#define DMA_RX_ERR_DESC		BIT(14)	/* descriptor error */
++#define DMA_RX_ERROR		BIT(15)	/* error summary */
++#define DMA_RX_LEN_MASK		0x3fff0000
++#define DMA_RX_LEN_SHIFT	16
++#define DMA_RX_FILT		BIT(30)
++#define DMA_RX_OWN		BIT(31)	/* desc owned by DMA controller */
++
++#define DMA_RX1_BSIZE_MASK	0x000007ff
++#define DMA_RX1_BSIZE_SHIFT	0
++#define DMA_RX1_CHAINED		BIT(24)
++#define DMA_RX1_RER		BIT(25)
++
++#define DMA_TX_ERR_UNDER	BIT(1)	/* underflow error */
++#define DMA_TX_ERR_DEFER	BIT(2)	/* excessive deferral */
++#define DMA_TX_COL_MASK		0x78
++#define DMA_TX_COL_SHIFT	3
++#define DMA_TX_ERR_HB		BIT(7)	/* hearbeat failure */
++#define DMA_TX_ERR_COL		BIT(8)	/* excessive collisions */
++#define DMA_TX_ERR_LATE		BIT(9)	/* late collision */
++#define DMA_TX_ERR_LINK		BIT(10)	/* no carrier */
++#define DMA_TX_ERR_LOSS		BIT(11)	/* loss of carrier */
++#define DMA_TX_ERR_JABBER	BIT(14)	/* transmit jabber timeout */
++#define DMA_TX_ERROR		BIT(15)	/* frame aborted */
++#define DMA_TX_OWN		BIT(31)	/* descr owned by DMA controller */
++
++#define DMA_TX1_BSIZE_MASK	0x000007ff
++#define DMA_TX1_BSIZE_SHIFT	0
++#define DMA_TX1_CHAINED		BIT(24)	/* chained descriptors */
++#define DMA_TX1_TER		BIT(25)	/* transmit end of ring */
++#define DMA_TX1_FS		BIT(29)	/* first segment */
++#define DMA_TX1_LS		BIT(30)	/* last segment */
++#define DMA_TX1_IC		BIT(31)	/* interrupt on completion */
++
++#define RCVPKT_LENGTH(X)	(X  >> 16)	/* Received pkt Length */
++
++#define MAC_CONTROL_RE		BIT(2)	/* receive enable */
++#define MAC_CONTROL_TE		BIT(3)	/* transmit enable */
++#define MAC_CONTROL_DC		BIT(5)	/* Deferral check */
++#define MAC_CONTROL_ASTP	BIT(8)	/* Auto pad strip */
++#define MAC_CONTROL_DRTY	BIT(10)	/* Disable retry */
++#define MAC_CONTROL_DBF		BIT(11)	/* Disable bcast frames */
++#define MAC_CONTROL_LCC		BIT(12)	/* late collision ctrl */
++#define MAC_CONTROL_HP		BIT(13)	/* Hash Perfect filtering */
++#define MAC_CONTROL_HASH	BIT(14)	/* Unicast hash filtering */
++#define MAC_CONTROL_HO		BIT(15)	/* Hash only filtering */
++#define MAC_CONTROL_PB		BIT(16)	/* Pass Bad frames */
++#define MAC_CONTROL_IF		BIT(17)	/* Inverse filtering */
++#define MAC_CONTROL_PR		BIT(18)	/* promiscuous mode (valid frames only) */
++#define MAC_CONTROL_PM		BIT(19)	/* pass multicast */
++#define MAC_CONTROL_F		BIT(20)	/* full-duplex */
++#define MAC_CONTROL_DRO		BIT(23)	/* Disable Receive Own */
++#define MAC_CONTROL_HBD		BIT(28)	/* heart-beat disabled (MUST BE SET) */
++#define MAC_CONTROL_BLE		BIT(30)	/* big endian mode */
++#define MAC_CONTROL_RA		BIT(31)	/* receive all (valid and invalid frames) */
++
++#define MII_ADDR_BUSY		BIT(0)
++#define MII_ADDR_WRITE		BIT(1)
++#define MII_ADDR_REG_SHIFT	6
++#define MII_ADDR_PHY_SHIFT	11
++#define MII_DATA_SHIFT		0
++
++#define FLOW_CONTROL_FCE	BIT(1)
++
++#define DMA_BUS_MODE_SWR	BIT(0)	/* software reset */
++#define DMA_BUS_MODE_BLE	BIT(7)	/* big endian mode */
++#define DMA_BUS_MODE_PBL_SHIFT	8	/* programmable burst length 32 */
++#define DMA_BUS_MODE_DBO	BIT(20)	/* big-endian descriptors */
++
++#define DMA_STATUS_TI		BIT(0)	/* transmit interrupt */
++#define DMA_STATUS_TPS		BIT(1)	/* transmit process stopped */
++#define DMA_STATUS_TU		BIT(2)	/* transmit buffer unavailable */
++#define DMA_STATUS_TJT		BIT(3)	/* transmit buffer timeout */
++#define DMA_STATUS_UNF		BIT(5)	/* transmit underflow */
++#define DMA_STATUS_RI		BIT(6)	/* receive interrupt */
++#define DMA_STATUS_RU		BIT(7)	/* receive buffer unavailable */
++#define DMA_STATUS_RPS		BIT(8)	/* receive process stopped */
++#define DMA_STATUS_ETI		BIT(10)	/* early transmit interrupt */
++#define DMA_STATUS_FBE		BIT(13)	/* fatal bus interrupt */
++#define DMA_STATUS_ERI		BIT(14)	/* early receive interrupt */
++#define DMA_STATUS_AIS		BIT(15)	/* abnormal interrupt summary */
++#define DMA_STATUS_NIS		BIT(16)	/* normal interrupt summary */
++#define DMA_STATUS_RS_SHIFT	17	/* receive process state */
++#define DMA_STATUS_TS_SHIFT	20	/* transmit process state */
++#define DMA_STATUS_EB_SHIFT	23	/* error bits */
++
++#define DMA_CONTROL_SR		BIT(1)	/* start receive */
++#define DMA_CONTROL_ST		BIT(13)	/* start transmit */
++#define DMA_CONTROL_SF		BIT(21)	/* store and forward */
++
++
++typedef struct {
++	volatile unsigned int status;	// OWN, Device control and status.
++	volatile unsigned int devcs;	// pkt Control bits + Length
++	volatile unsigned int addr;	// Current Address.
++	volatile unsigned int descr;	// Next descriptor in chain.
++} ar231x_descr_t;
++
++
++
++//
++// New Combo structure for Both Eth0 AND eth1
++//
++typedef struct {
++	volatile unsigned int mac_control;	/* 0x00 */
++	volatile unsigned int mac_addr[2];	/* 0x04 - 0x08 */
++	volatile unsigned int mcast_table[2];	/* 0x0c - 0x10 */
++	volatile unsigned int mii_addr;	/* 0x14 */
++	volatile unsigned int mii_data;	/* 0x18 */
++	volatile unsigned int flow_control;	/* 0x1c */
++	volatile unsigned int vlan_tag;	/* 0x20 */
++	volatile unsigned int pad[7];	/* 0x24 - 0x3c */
++	volatile unsigned int ucast_table[8];	/* 0x40-0x5c */
++
++} ETHERNET_STRUCT;
++
++/********************************************************************
++ * Interrupt controller
++ ********************************************************************/
++
++typedef struct {
++	volatile unsigned int wdog_control;	/* 0x08 */
++	volatile unsigned int wdog_timer;	/* 0x0c */
++	volatile unsigned int misc_status;	/* 0x10 */
++	volatile unsigned int misc_mask;	/* 0x14 */
++	volatile unsigned int global_status;	/* 0x18 */
++	volatile unsigned int reserved;	/* 0x1c */
++	volatile unsigned int reset_control;	/* 0x20 */
++} INTERRUPT;
++
++/********************************************************************
++ * DMA controller
++ ********************************************************************/
++typedef struct {
++	volatile unsigned int bus_mode;	/* 0x00 (CSR0) */
++	volatile unsigned int xmt_poll;	/* 0x04 (CSR1) */
++	volatile unsigned int rcv_poll;	/* 0x08 (CSR2) */
++	volatile unsigned int rcv_base;	/* 0x0c (CSR3) */
++	volatile unsigned int xmt_base;	/* 0x10 (CSR4) */
++	volatile unsigned int status;	/* 0x14 (CSR5) */
++	volatile unsigned int control;	/* 0x18 (CSR6) */
++	volatile unsigned int intr_ena;	/* 0x1c (CSR7) */
++	volatile unsigned int rcv_missed;	/* 0x20 (CSR8) */
++	volatile unsigned int reserved[11];	/* 0x24-0x4c (CSR9-19) */
++	volatile unsigned int cur_tx_buf_addr;	/* 0x50 (CSR20) */
++	volatile unsigned int cur_rx_buf_addr;	/* 0x50 (CSR21) */
++} DMA;
++
++/*
++ * Struct private for the Sibyte.
++ *
++ * Elements are grouped so variables used by the tx handling goes
++ * together, and will go into the same cache lines etc. in order to
++ * avoid cache line contention between the rx and tx handling on SMP.
++ *
++ * Frequently accessed variables are put at the beginning of the
++ * struct to help the compiler generate better/shorter code.
++ */
++struct ar231x_private {
++	struct net_device *dev;
++	int (*rx)(struct sk_buff *skb);
++
++	int version;
++	u32 mb[2];
++
++	volatile ETHERNET_STRUCT *phy_regs;
++	volatile ETHERNET_STRUCT *eth_regs;
++	volatile DMA *dma_regs;
++	volatile u32 *int_regs;
++	struct ar231x_eth *cfg;
++
++	spinlock_t lock;			/* Serialise access to device */
++
++	/*
++	 * RX and TX descriptors, must be adjacent
++	 */
++	ar231x_descr_t *rx_ring;
++	ar231x_descr_t *tx_ring;
++
++
++	struct sk_buff **rx_skb;
++	struct sk_buff **tx_skb;
++
++	/*
++	 * RX elements
++	 */
++	u32 rx_skbprd;
++	u32 cur_rx;
++
++	/*
++	 * TX elements
++	 */
++	u32 tx_prd;
++	u32 tx_csm;
++
++	/*
++	 * Misc elements
++	 */
++	char name[48];
++	struct {
++		u32 address;
++		u32 length;
++		char *mapping;
++	} desc;
++
++
++	struct timer_list link_timer;
++	unsigned short phy;			/* merlot phy = 1, samsung phy = 0x1f */
++	unsigned short mac;
++	unsigned short link;		/* 0 - link down, 1 - link up */
++	u16 phyData;
++
++	struct tasklet_struct rx_tasklet;
++	int unloading;
++
++	struct phy_device *phy_dev;
++	struct mii_bus *mii_bus;
++	int oldduplex;
++};
++
++
++/*
++ * Prototypes
++ */
++static int ar231x_init(struct net_device *dev);
++#ifdef TX_TIMEOUT
++static void ar231x_tx_timeout(struct net_device *dev);
++#endif
++static int ar231x_restart(struct net_device *dev);
++static void ar231x_load_rx_ring(struct net_device *dev, int bufs);
++static irqreturn_t ar231x_interrupt(int irq, void *dev_id);
++static int ar231x_open(struct net_device *dev);
++static int ar231x_start_xmit(struct sk_buff *skb, struct net_device *dev);
++static int ar231x_close(struct net_device *dev);
++static int ar231x_ioctl(struct net_device *dev, struct ifreq *ifr,
++						int cmd);
++static void ar231x_init_cleanup(struct net_device *dev);
++static int ar231x_setup_timer(struct net_device *dev);
++static void ar231x_link_timer_fn(unsigned long data);
++static void ar231x_check_link(struct net_device *dev);
++#endif							/* _AR2313_H_ */
+diff -Nur linux-2.6.37.orig/drivers/watchdog/Kconfig linux-2.6.37/drivers/watchdog/Kconfig
+--- linux-2.6.37.orig/drivers/watchdog/Kconfig	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/drivers/watchdog/Kconfig	2011-04-12 08:12:01.000000000 +0200
+@@ -930,6 +930,12 @@
+ 	  To compile this driver as a loadable module, choose M here.
+ 	  The module will be called bcm63xx_wdt.
+ 
++config ATHEROS_WDT
++	tristate "Atheros wisoc Watchdog Timer"
++	depends on ATHEROS_AR231X
++	help
++	  Hardware driver for the Atheros wisoc Watchdog Timer.
++
+ # PARISC Architecture
+ 
+ # POWERPC Architecture
+diff -Nur linux-2.6.37.orig/drivers/watchdog/Makefile linux-2.6.37/drivers/watchdog/Makefile
+--- linux-2.6.37.orig/drivers/watchdog/Makefile	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/drivers/watchdog/Makefile	2011-04-12 08:12:01.000000000 +0200
+@@ -116,6 +116,7 @@
+ obj-$(CONFIG_PNX833X_WDT) += pnx833x_wdt.o
+ obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
+ obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
++obj-$(CONFIG_ATHEROS_WDT) += ar2315-wtd.o
+ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
+ obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o
+ octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o
+diff -Nur linux-2.6.37.orig/drivers/watchdog/ar2315-wtd.c linux-2.6.37/drivers/watchdog/ar2315-wtd.c
+--- linux-2.6.37.orig/drivers/watchdog/ar2315-wtd.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.37/drivers/watchdog/ar2315-wtd.c	2011-04-12 08:12:01.000000000 +0200
+@@ -0,0 +1,200 @@
++/*
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
++ *
++ * Copyright (C) 2008 John Crispin <blogic@openwrt.org>
++ * Based on EP93xx and ifxmips wdt driver
++ */
++
++#include <linux/interrupt.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/types.h>
++#include <linux/miscdevice.h>
++#include <linux/watchdog.h>
++#include <linux/fs.h>
++#include <linux/ioport.h>
++#include <linux/notifier.h>
++#include <linux/reboot.h>
++#include <linux/init.h>
++#include <linux/platform_device.h>
++
++#include <asm/io.h>
++#include <asm/uaccess.h>
++#include <asm/system.h>
++#include <asm/addrspace.h>
++#include <ar231x_platform.h>
++#include <ar2315_regs.h>
++#include <ar231x.h>
++
++#define CLOCK_RATE 40000000
++#define HEARTBEAT(x) (x < 1 || x > 90)?(20):(x)
++
++static int wdt_timeout = 20;
++static int started = 0;
++static int in_use = 0;
++
++static void
++ar2315_wdt_enable(void)
++{
++	ar231x_write_reg(AR2315_WD, wdt_timeout * CLOCK_RATE);
++	ar231x_write_reg(AR2315_ISR, 0x80);
++}
++
++static ssize_t
++ar2315_wdt_write(struct file *file, const char __user *data, size_t len, loff_t *ppos)
++{
++	if(len)
++		ar2315_wdt_enable();
++	return len;
++}
++
++static int
++ar2315_wdt_open(struct inode *inode, struct file *file)
++{
++	if(in_use)
++		return -EBUSY;
++	ar2315_wdt_enable();
++	in_use = started = 1;
++	return nonseekable_open(inode, file);
++}
++
++static int
++ar2315_wdt_release(struct inode *inode, struct file *file)
++{
++	in_use = 0;
++	return 0;
++}
++
++static irqreturn_t
++ar2315_wdt_interrupt(int irq, void *dev_id)
++{
++	if(started)
++	{
++		printk(KERN_CRIT "watchdog expired, rebooting system\n");
++		emergency_restart();
++	} else {
++		ar231x_write_reg(AR2315_WDC, 0);
++		ar231x_write_reg(AR2315_WD, 0);
++		ar231x_write_reg(AR2315_ISR, 0x80);
++	}
++	return IRQ_HANDLED;
++}
++
++static struct watchdog_info ident = {
++	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
++	.identity = "ar2315 Watchdog",
++};
++
++static int
++ar2315_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
++{
++	int new_wdt_timeout;
++	int ret = -ENOIOCTLCMD;
++
++	switch(cmd)
++	{
++		case WDIOC_GETSUPPORT:
++			ret = copy_to_user((struct watchdog_info __user *)arg, &ident, sizeof(ident)) ? -EFAULT : 0;
++			break;
++
++		case WDIOC_KEEPALIVE:
++			ar2315_wdt_enable();
++			ret = 0;
++			break;
++
++		case WDIOC_SETTIMEOUT:
++			if((ret = get_user(new_wdt_timeout, (int __user *)arg)))
++				break;
++			wdt_timeout = HEARTBEAT(new_wdt_timeout);
++			ar2315_wdt_enable();
++			break;
++
++		case WDIOC_GETTIMEOUT:
++			ret = put_user(wdt_timeout, (int __user *)arg);
++			break;
++	}
++	return ret;
++}
++
++static struct file_operations ar2315_wdt_fops = {
++	.owner		= THIS_MODULE,
++	.llseek		= no_llseek,
++	.write		= ar2315_wdt_write,
++	.unlocked_ioctl	= ar2315_wdt_ioctl,
++	.open		= ar2315_wdt_open,
++	.release	= ar2315_wdt_release,
++};
++
++static struct miscdevice ar2315_wdt_miscdev = {
++	.minor	= WATCHDOG_MINOR,
++	.name	= "watchdog",
++	.fops	= &ar2315_wdt_fops,
++};
++
++static int
++ar2315_wdt_probe(struct platform_device *dev)
++{
++	int ret = 0;
++
++	ar2315_wdt_enable();
++	ret = request_irq(AR531X_MISC_IRQ_WATCHDOG, ar2315_wdt_interrupt, IRQF_DISABLED, "ar2315_wdt", NULL);
++	if(ret)
++	{
++		printk(KERN_ERR "ar2315wdt: failed to register inetrrupt\n");
++		goto out;
++	}
++
++	ret = misc_register(&ar2315_wdt_miscdev);
++	if(ret)
++		printk(KERN_ERR "ar2315wdt: failed to register miscdev\n");
++
++out:
++	return ret;
++}
++
++static int
++ar2315_wdt_remove(struct platform_device *dev)
++{
++	misc_deregister(&ar2315_wdt_miscdev);
++	free_irq(AR531X_MISC_IRQ_WATCHDOG, NULL);
++	return 0;
++}
++
++static struct platform_driver ar2315_wdt_driver = {
++	.probe = ar2315_wdt_probe,
++	.remove = ar2315_wdt_remove,
++	.driver = {
++		.name = "ar2315_wdt",
++		.owner = THIS_MODULE,
++	},
++};
++
++static int __init
++init_ar2315_wdt(void)
++{
++	int ret = platform_driver_register(&ar2315_wdt_driver);
++	if(ret)
++		printk(KERN_INFO "ar2315_wdt: error registering platfom driver!");
++	return ret;
++}
++
++static void __exit
++exit_ar2315_wdt(void)
++{
++	platform_driver_unregister(&ar2315_wdt_driver);
++}
++
++module_init(init_ar2315_wdt);
++module_exit(exit_ar2315_wdt);
diff --git a/target/mips/sys-available/fon-fon2100 b/target/mips/sys-available/fon-fon2100
new file mode 100644
index 000000000..4e5416b89
--- /dev/null
+++ b/target/mips/sys-available/fon-fon2100
@@ -0,0 +1,8 @@
+config ADK_TARGET_SYSTEM_FON_FON2100
+	bool "FON's FON2100"
+	select ADK_mips
+	select ADK_fon_fon2100
+	select ADK_KERNEL_ATHEROS_AR231X
+	help
+	  Support for FON's FON2100.
+