ath25: add preliminary kernel 4.9 support

Copy and refresh patches and config from 4.4 Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
2017-06-07 01:49:35 +03:00 · 2017-06-07 01:49:35 +03:00 · 64083848e2
parent 9715beb04c
commit 64083848e2
12 changed files with 3924 additions and 0 deletions
--- a/target/linux/ath25/config-4.9
+++ b/target/linux/ath25/config-4.9
@ -0,0 +1,156 @@
+CONFIG_ADM6996_PHY=y
+CONFIG_AR2315_WDT=y
+CONFIG_AR8216_PHY=y
+CONFIG_ARCH_BINFMT_ELF_STATE=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_DISCARD_MEMBLOCK=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
+# CONFIG_ARCH_HAS_SG_CHAIN is not set
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ATH25=y
+CONFIG_BLK_MQ_PCI=y
+CONFIG_CEVT_R4K=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMDLINE="console=ttyS0,9600 rootfstype=squashfs,jffs2"
+CONFIG_CMDLINE_BOOL=y
+# CONFIG_CMDLINE_OVERRIDE is not set
+CONFIG_CPU_BIG_ENDIAN=y
+CONFIG_CPU_GENERIC_DUMP_TLB=y
+CONFIG_CPU_HAS_PREFETCH=y
+CONFIG_CPU_HAS_SYNC=y
+CONFIG_CPU_MIPS32=y
+CONFIG_CPU_MIPS32_R1=y
+CONFIG_CPU_MIPSR1=y
+CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y
+CONFIG_CPU_R4K_CACHE_TLB=y
+CONFIG_CPU_R4K_FPU=y
+CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
+CONFIG_CPU_SUPPORTS_HIGHMEM=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_CSRC_R4K=y
+CONFIG_DMA_NONCOHERENT=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_ETHERNET_PACKET_MANGLE=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_AR2315=y
+CONFIG_GPIO_AR5312=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDWARE_WATCHPOINTS=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+# CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_CBPF_JIT=y
+CONFIG_HAVE_CC_STACKPROTECTOR=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+CONFIG_HW_HAS_PCI=y
+CONFIG_HW_RANDOM=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IP17XX_PHY=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_MIPS_CPU=y
+CONFIG_IRQ_WORK=y
+CONFIG_LEDS_GPIO=y
+CONFIG_MDIO_BOARDINFO=y
+CONFIG_MIPS=y
+CONFIG_MIPS_ASID_BITS=8
+CONFIG_MIPS_ASID_SHIFT=0
+CONFIG_MIPS_CLOCK_VSYSCALL=y
+# CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND is not set
+CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER=y
+# CONFIG_MIPS_HUGE_TLB_SUPPORT is not set
+CONFIG_MIPS_L1_CACHE_SHIFT=5
+# CONFIG_MIPS_MACHINE is not set
+CONFIG_MODULES_USE_ELF_REL=y
+CONFIG_MTD_AR2315=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+# CONFIG_MTD_CFI_GEOMETRY is not set
+# CONFIG_MTD_CFI_INTELEXT is not set
+CONFIG_MTD_MYLOADER_PARTS=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-3
+CONFIG_MTD_REDBOOT_PARTS=y
+CONFIG_MVSWITCH_PHY=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NET_AR231X=y
+CONFIG_NO_GENERIC_PCI_IOPORT_MAP=y
+# CONFIG_NO_IOPORT_MAP is not set
+# CONFIG_OF is not set
+CONFIG_PCI=y
+CONFIG_PCI_AR2315=y
+CONFIG_PCI_DISABLE_COMMON_QUIRKS=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_DRIVERS_LEGACY=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+# CONFIG_RCU_STALL_COMMON is not set
+CONFIG_SCHED_HRTICK=y
+# CONFIG_SCHED_INFO is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SERIAL_8250_FSL is not set
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=1
+CONFIG_SOC_AR2315=y
+CONFIG_SOC_AR5312=y
+CONFIG_SRCU=y
+# CONFIG_SWAP is not set
+CONFIG_SWCONFIG=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_SYS_HAS_CPU_MIPS32_R1=y
+CONFIG_SYS_HAS_EARLY_PRINTK=y
+CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
+CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_USB_SUPPORT=y
--- a/target/linux/ath25/patches-4.9/107-ar5312_gpio.patch
+++ b/target/linux/ath25/patches-4.9/107-ar5312_gpio.patch
@ -0,0 +1,212 @@
+--- a/arch/mips/ath25/Kconfig
+++ b/arch/mips/ath25/Kconfig
+@@ -1,6 +1,7 @@
+ config SOC_AR5312
+ 	bool "Atheros AR5312/AR2312+ SoC support"
+ 	depends on ATH25
+	select GPIO_AR5312
+ 	default y
+ 
+ config SOC_AR2315
+--- a/arch/mips/ath25/ar5312.c
+++ b/arch/mips/ath25/ar5312.c
+@@ -22,6 +22,7 @@
+ #include <linux/platform_device.h>
+ #include <linux/mtd/physmap.h>
+ #include <linux/reboot.h>
+#include <linux/gpio.h>
+ #include <asm/bootinfo.h>
+ #include <asm/reboot.h>
+ #include <asm/time.h>
+@@ -180,6 +181,22 @@ static struct platform_device ar5312_phy
+ 	.num_resources = 1,
+ };
+ 
+static struct resource ar5312_gpio_res[] = {
+	{
+		.name = "ar5312-gpio",
+		.flags = IORESOURCE_MEM,
+		.start = AR5312_GPIO_BASE,
+		.end = AR5312_GPIO_BASE + AR5312_GPIO_SIZE - 1,
+	},
+};
+
+static struct platform_device ar5312_gpio = {
+	.name = "ar5312-gpio",
+	.id = -1,
+	.resource = ar5312_gpio_res,
+	.num_resources = ARRAY_SIZE(ar5312_gpio_res),
+};
+
+ static void __init ar5312_flash_init(void)
+ {
+ 	void __iomem *flashctl_base;
+@@ -247,6 +264,8 @@ void __init ar5312_init_devices(void)
+ 
+ 	platform_device_register(&ar5312_physmap_flash);
+ 
+	platform_device_register(&ar5312_gpio);
+
+ 	switch (ath25_soc) {
+ 	case ATH25_SOC_AR5312:
+ 		if (!ath25_board.radio)
+--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
+@@ -105,6 +105,13 @@ config GPIO_AMDPT
+ 	  driver for GPIO functionality on Promontory IOHub
+ 	  Require ACPI ASL code to enumerate as a platform device.
+ 
+config GPIO_AR5312
+	bool "AR5312 SoC GPIO support"
+	default y if SOC_AR5312
+	depends on SOC_AR5312
+	help
+	  Say yes here to enable GPIO support for Atheros AR5312/AR2312+ SoCs.
+
+ config GPIO_ASPEED
+ 	tristate "Aspeed GPIO support"
+ 	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
+--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
+@@ -26,6 +26,7 @@ obj-$(CONFIG_GPIO_ADP5588)	+= gpio-adp55
+ obj-$(CONFIG_GPIO_ALTERA)  	+= gpio-altera.o
+ obj-$(CONFIG_GPIO_AMD8111)	+= gpio-amd8111.o
+ obj-$(CONFIG_GPIO_AMDPT)	+= gpio-amdpt.o
+obj-$(CONFIG_GPIO_AR5312)	+= gpio-ar5312.o
+ obj-$(CONFIG_GPIO_ARIZONA)	+= gpio-arizona.o
+ obj-$(CONFIG_GPIO_ATH79)	+= gpio-ath79.o
+ obj-$(CONFIG_GPIO_ASPEED)	+= gpio-aspeed.o
+--- /dev/null
+++ b/drivers/gpio/gpio-ar5312.c
+@@ -0,0 +1,121 @@
+/*
+ * 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@nbd.name>
+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#define DRIVER_NAME	"ar5312-gpio"
+
+#define AR5312_GPIO_DO		0x00		/* output register */
+#define AR5312_GPIO_DI		0x04		/* intput register */
+#define AR5312_GPIO_CR		0x08		/* control register */
+
+#define AR5312_GPIO_CR_M(x)	(1 << (x))	/* mask for i/o */
+#define AR5312_GPIO_CR_O(x)	(0 << (x))	/* mask for output */
+#define AR5312_GPIO_CR_I(x)	(1 << (x))	/* mask for input */
+#define AR5312_GPIO_CR_INT(x)	(1 << ((x)+8))	/* mask for interrupt */
+#define AR5312_GPIO_CR_UART(x)	(1 << ((x)+16))	/* uart multiplex */
+
+#define AR5312_GPIO_NUM		8
+
+static void __iomem *ar5312_mem;
+
+static inline u32 ar5312_gpio_reg_read(unsigned reg)
+{
+	return __raw_readl(ar5312_mem + reg);
+}
+
+static inline void ar5312_gpio_reg_write(unsigned reg, u32 val)
+{
+	__raw_writel(val, ar5312_mem + reg);
+}
+
+static inline void ar5312_gpio_reg_mask(unsigned reg, u32 mask, u32 val)
+{
+	ar5312_gpio_reg_write(reg, (ar5312_gpio_reg_read(reg) & ~mask) | val);
+}
+
+static int ar5312_gpio_get_val(struct gpio_chip *chip, unsigned gpio)
+{
+	return (ar5312_gpio_reg_read(AR5312_GPIO_DI) >> gpio) & 1;
+}
+
+static void ar5312_gpio_set_val(struct gpio_chip *chip, unsigned gpio, int val)
+{
+	u32 reg = ar5312_gpio_reg_read(AR5312_GPIO_DO);
+
+	reg = val ? reg | (1 << gpio) : reg & ~(1 << gpio);
+	ar5312_gpio_reg_write(AR5312_GPIO_DO, reg);
+}
+
+static int ar5312_gpio_dir_in(struct gpio_chip *chip, unsigned gpio)
+{
+	ar5312_gpio_reg_mask(AR5312_GPIO_CR, 0, 1 << gpio);
+	return 0;
+}
+
+static int ar5312_gpio_dir_out(struct gpio_chip *chip, unsigned gpio, int val)
+{
+	ar5312_gpio_reg_mask(AR5312_GPIO_CR, 1 << gpio, 0);
+	ar5312_gpio_set_val(chip, gpio, val);
+	return 0;
+}
+
+static struct gpio_chip ar5312_gpio_chip = {
+	.label			= DRIVER_NAME,
+	.direction_input	= ar5312_gpio_dir_in,
+	.direction_output	= ar5312_gpio_dir_out,
+	.set			= ar5312_gpio_set_val,
+	.get			= ar5312_gpio_get_val,
+	.base			= 0,
+	.ngpio			= AR5312_GPIO_NUM,
+};
+
+static int ar5312_gpio_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	int ret;
+
+	if (ar5312_mem)
+		return -EBUSY;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ar5312_mem = devm_ioremap_resource(dev, res);
+	if (IS_ERR(ar5312_mem))
+		return PTR_ERR(ar5312_mem);
+
+	ar5312_gpio_chip.dev = dev;
+	ret = gpiochip_add(&ar5312_gpio_chip);
+	if (ret) {
+		dev_err(dev, "failed to add gpiochip\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static struct platform_driver ar5312_gpio_driver = {
+	.probe = ar5312_gpio_probe,
+	.driver = {
+		.name = DRIVER_NAME,
+		.owner = THIS_MODULE,
+	}
+};
+
+static int __init ar5312_gpio_init(void)
+{
+	return platform_driver_register(&ar5312_gpio_driver);
+}
+subsys_initcall(ar5312_gpio_init);
+--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
+@@ -167,6 +167,7 @@ config ATH25
+ 	select CEVT_R4K
+ 	select CSRC_R4K
+ 	select DMA_NONCOHERENT
+	select GPIOLIB
+ 	select IRQ_MIPS_CPU
+ 	select IRQ_DOMAIN
+ 	select SYS_HAS_CPU_MIPS32_R1
--- a/target/linux/ath25/patches-4.9/108-ar2315_gpio.patch
+++ b/target/linux/ath25/patches-4.9/108-ar2315_gpio.patch
@ -0,0 +1,363 @@
+--- a/arch/mips/ath25/Kconfig
+++ b/arch/mips/ath25/Kconfig
+@@ -7,6 +7,7 @@ config SOC_AR5312
+ config SOC_AR2315
+ 	bool "Atheros AR2315+ SoC support"
+ 	depends on ATH25
+	select GPIO_AR2315
+ 	default y
+ 
+ config PCI_AR2315
+--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
+@@ -21,6 +21,8 @@
+ #include <linux/interrupt.h>
+ #include <linux/platform_device.h>
+ #include <linux/reboot.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+ #include <asm/bootinfo.h>
+ #include <asm/reboot.h>
+ #include <asm/time.h>
+@@ -167,11 +169,42 @@ void __init ar2315_arch_init_irq(void)
+ 	ar2315_misc_irq_domain = domain;
+ }
+ 
+static struct resource ar2315_gpio_res[] = {
+	{
+		.name = "ar2315-gpio",
+		.flags = IORESOURCE_MEM,
+		.start = AR2315_RST_BASE + AR2315_GPIO,
+		.end = AR2315_RST_BASE + AR2315_GPIO + 0x10 - 1,
+	},
+	{
+		.name = "ar2315-gpio",
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.name = "ar2315-gpio-irq-base",
+		.flags = IORESOURCE_IRQ,
+		.start = AR231X_GPIO_IRQ_BASE,
+		.end = AR231X_GPIO_IRQ_BASE,
+	}
+};
+
+static struct platform_device ar2315_gpio = {
+	.id = -1,
+	.name = "ar2315-gpio",
+	.resource = ar2315_gpio_res,
+	.num_resources = ARRAY_SIZE(ar2315_gpio_res)
+};
+
+ void __init ar2315_init_devices(void)
+ {
+ 	/* Find board configuration */
+ 	ath25_find_config(AR2315_SPI_READ_BASE, AR2315_SPI_READ_SIZE);
+ 
+	ar2315_gpio_res[1].start = irq_create_mapping(ar2315_misc_irq_domain,
+						      AR2315_MISC_IRQ_GPIO);
+	ar2315_gpio_res[1].end = ar2315_gpio_res[1].start;
+	platform_device_register(&ar2315_gpio);
+
+ 	ath25_add_wmac(0, AR2315_WLAN0_BASE, AR2315_IRQ_WLAN0);
+ }
+ 
+@@ -187,8 +220,8 @@ static void ar2315_restart(char *command
+ 	/* 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) */
+-
+-	/* TODO: implement the GPIO reset workaround */
+	gpio_request_one(AR2315_RESET_GPIO, GPIOF_OUT_INIT_LOW, "Reset");
+	mdelay(100);
+ 
+ 	/* Some boards (e.g. Senao EOC-2610) don't implement the reset logic
+ 	 * workaround. Attempt to jump to the mips reset location -
+--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
+@@ -105,6 +105,13 @@ config GPIO_AMDPT
+ 	  driver for GPIO functionality on Promontory IOHub
+ 	  Require ACPI ASL code to enumerate as a platform device.
+ 
+config GPIO_AR2315
+	bool "AR2315 SoC GPIO support"
+	default y if SOC_AR2315
+	depends on SOC_AR2315
+	help
+	  Say yes here to enable GPIO support for Atheros AR2315+ SoCs.
+
+ config GPIO_AR5312
+ 	bool "AR5312 SoC GPIO support"
+ 	default y if SOC_AR5312
+--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
+@@ -26,6 +26,7 @@ obj-$(CONFIG_GPIO_ADP5588)	+= gpio-adp55
+ obj-$(CONFIG_GPIO_ALTERA)  	+= gpio-altera.o
+ obj-$(CONFIG_GPIO_AMD8111)	+= gpio-amd8111.o
+ obj-$(CONFIG_GPIO_AMDPT)	+= gpio-amdpt.o
+obj-$(CONFIG_GPIO_AR2315)	+= gpio-ar2315.o
+ obj-$(CONFIG_GPIO_AR5312)	+= gpio-ar5312.o
+ obj-$(CONFIG_GPIO_ARIZONA)	+= gpio-arizona.o
+ obj-$(CONFIG_GPIO_ATH79)	+= gpio-ath79.o
+--- /dev/null
+++ b/drivers/gpio/gpio-ar2315.c
+@@ -0,0 +1,233 @@
+/*
+ * 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@nbd.name>
+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+
+#define DRIVER_NAME	"ar2315-gpio"
+
+#define AR2315_GPIO_DI			0x0000
+#define AR2315_GPIO_DO			0x0008
+#define AR2315_GPIO_DIR			0x0010
+#define AR2315_GPIO_INT			0x0018
+
+#define AR2315_GPIO_DIR_M(x)		(1 << (x))	/* mask for i/o */
+#define AR2315_GPIO_DIR_O(x)		(1 << (x))	/* output */
+#define AR2315_GPIO_DIR_I(x)		(0)		/* input */
+
+#define AR2315_GPIO_INT_NUM_M		0x3F		/* mask for GPIO num */
+#define AR2315_GPIO_INT_TRIG(x)		((x) << 6)	/* interrupt trigger */
+#define AR2315_GPIO_INT_TRIG_M		(0x3 << 6)	/* mask for int trig */
+
+#define AR2315_GPIO_INT_TRIG_OFF	0	/* Triggerring off */
+#define AR2315_GPIO_INT_TRIG_LOW	1	/* Low Level Triggered */
+#define AR2315_GPIO_INT_TRIG_HIGH	2	/* High Level Triggered */
+#define AR2315_GPIO_INT_TRIG_EDGE	3	/* Edge Triggered */
+
+#define AR2315_GPIO_NUM		22
+
+static u32 ar2315_gpio_intmask;
+static u32 ar2315_gpio_intval;
+static unsigned ar2315_gpio_irq_base;
+static void __iomem *ar2315_mem;
+
+static inline u32 ar2315_gpio_reg_read(unsigned reg)
+{
+	return __raw_readl(ar2315_mem + reg);
+}
+
+static inline void ar2315_gpio_reg_write(unsigned reg, u32 val)
+{
+	__raw_writel(val, ar2315_mem + reg);
+}
+
+static inline void ar2315_gpio_reg_mask(unsigned reg, u32 mask, u32 val)
+{
+	ar2315_gpio_reg_write(reg, (ar2315_gpio_reg_read(reg) & ~mask) | val);
+}
+
+static void ar2315_gpio_irq_handler(struct irq_desc *desc)
+{
+	u32 pend;
+	int bit = -1;
+
+	/* only do one gpio interrupt at a time */
+	pend = ar2315_gpio_reg_read(AR2315_GPIO_DI);
+	pend ^= ar2315_gpio_intval;
+	pend &= ar2315_gpio_intmask;
+
+	if (pend) {
+		bit = fls(pend) - 1;
+		pend &= ~(1 << bit);
+		ar2315_gpio_intval ^= (1 << bit);
+	}
+
+	/* Enable interrupt with edge detection */
+	if ((ar2315_gpio_reg_read(AR2315_GPIO_DIR) & AR2315_GPIO_DIR_M(bit)) !=
+	    AR2315_GPIO_DIR_I(bit))
+		return;
+
+	if (bit >= 0)
+		generic_handle_irq(ar2315_gpio_irq_base + bit);
+}
+
+static void ar2315_gpio_int_setup(unsigned gpio, int trig)
+{
+	u32 reg = ar2315_gpio_reg_read(AR2315_GPIO_INT);
+
+	reg &= ~(AR2315_GPIO_INT_NUM_M | AR2315_GPIO_INT_TRIG_M);
+	reg |= gpio | AR2315_GPIO_INT_TRIG(trig);
+	ar2315_gpio_reg_write(AR2315_GPIO_INT, reg);
+}
+
+static void ar2315_gpio_irq_unmask(struct irq_data *d)
+{
+	unsigned gpio = d->irq - ar2315_gpio_irq_base;
+	u32 dir = ar2315_gpio_reg_read(AR2315_GPIO_DIR);
+
+	/* Enable interrupt with edge detection */
+	if ((dir & AR2315_GPIO_DIR_M(gpio)) != AR2315_GPIO_DIR_I(gpio))
+		return;
+
+	ar2315_gpio_intmask |= (1 << gpio);
+	ar2315_gpio_int_setup(gpio, AR2315_GPIO_INT_TRIG_EDGE);
+}
+
+static void ar2315_gpio_irq_mask(struct irq_data *d)
+{
+	unsigned gpio = d->irq - ar2315_gpio_irq_base;
+
+	/* Disable interrupt */
+	ar2315_gpio_intmask &= ~(1 << gpio);
+	ar2315_gpio_int_setup(gpio, AR2315_GPIO_INT_TRIG_OFF);
+}
+
+static struct irq_chip ar2315_gpio_irq_chip = {
+	.name		= DRIVER_NAME,
+	.irq_unmask	= ar2315_gpio_irq_unmask,
+	.irq_mask	= ar2315_gpio_irq_mask,
+};
+
+static void ar2315_gpio_irq_init(unsigned irq)
+{
+	unsigned i;
+
+	ar2315_gpio_intval = ar2315_gpio_reg_read(AR2315_GPIO_DI);
+	for (i = 0; i < AR2315_GPIO_NUM; i++) {
+		unsigned _irq = ar2315_gpio_irq_base + i;
+
+		irq_set_chip_and_handler(_irq, &ar2315_gpio_irq_chip,
+					 handle_level_irq);
+	}
+	irq_set_chained_handler(irq, ar2315_gpio_irq_handler);
+}
+
+static int ar2315_gpio_get_val(struct gpio_chip *chip, unsigned gpio)
+{
+	return (ar2315_gpio_reg_read(AR2315_GPIO_DI) >> gpio) & 1;
+}
+
+static void ar2315_gpio_set_val(struct gpio_chip *chip, unsigned gpio, int val)
+{
+	u32 reg = ar2315_gpio_reg_read(AR2315_GPIO_DO);
+
+	reg = val ? reg | (1 << gpio) : reg & ~(1 << gpio);
+	ar2315_gpio_reg_write(AR2315_GPIO_DO, reg);
+}
+
+static int ar2315_gpio_dir_in(struct gpio_chip *chip, unsigned gpio)
+{
+	ar2315_gpio_reg_mask(AR2315_GPIO_DIR, 1 << gpio, 0);
+	return 0;
+}
+
+static int ar2315_gpio_dir_out(struct gpio_chip *chip, unsigned gpio, int val)
+{
+	ar2315_gpio_reg_mask(AR2315_GPIO_DIR, 0, 1 << gpio);
+	ar2315_gpio_set_val(chip, gpio, val);
+	return 0;
+}
+
+static int ar2315_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
+{
+	return ar2315_gpio_irq_base + gpio;
+}
+
+static struct gpio_chip ar2315_gpio_chip = {
+	.label			= DRIVER_NAME,
+	.direction_input	= ar2315_gpio_dir_in,
+	.direction_output	= ar2315_gpio_dir_out,
+	.set			= ar2315_gpio_set_val,
+	.get			= ar2315_gpio_get_val,
+	.to_irq			= ar2315_gpio_to_irq,
+	.base			= 0,
+	.ngpio			= AR2315_GPIO_NUM,
+};
+
+static int ar2315_gpio_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	unsigned irq;
+	int ret;
+
+	if (ar2315_mem)
+		return -EBUSY;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+					   "ar2315-gpio-irq-base");
+	if (!res) {
+		dev_err(dev, "not found GPIO IRQ base\n");
+		return -ENXIO;
+	}
+	ar2315_gpio_irq_base = res->start;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, DRIVER_NAME);
+	if (!res) {
+		dev_err(dev, "not found IRQ number\n");
+		return -ENXIO;
+	}
+	irq = res->start;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, DRIVER_NAME);
+	ar2315_mem = devm_ioremap_resource(dev, res);
+	if (IS_ERR(ar2315_mem))
+		return PTR_ERR(ar2315_mem);
+
+	ar2315_gpio_chip.dev = dev;
+	ret = gpiochip_add(&ar2315_gpio_chip);
+	if (ret) {
+		dev_err(dev, "failed to add gpiochip\n");
+		return ret;
+	}
+
+	ar2315_gpio_irq_init(irq);
+
+	return 0;
+}
+
+static struct platform_driver ar2315_gpio_driver = {
+	.probe = ar2315_gpio_probe,
+	.driver = {
+		.name = DRIVER_NAME,
+		.owner = THIS_MODULE,
+	}
+};
+
+static int __init ar2315_gpio_init(void)
+{
+	return platform_driver_register(&ar2315_gpio_driver);
+}
+subsys_initcall(ar2315_gpio_init);
+--- a/arch/mips/ath25/devices.h
+++ b/arch/mips/ath25/devices.h
+@@ -3,6 +3,11 @@
+ 
+ #include <linux/cpu.h>
+ 
+#define AR231X_GPIO_IRQ_BASE		0x30
+
+/* GPIO number for AR2315/16 reset issue workaround */
+#define AR2315_RESET_GPIO		5
+
+ #define ATH25_REG_MS(_val, _field)	(((_val) & _field##_M) >> _field##_S)
+ 
+ #define ATH25_IRQ_CPU_CLOCK	(MIPS_CPU_IRQ_BASE + 7)	/* C0_CAUSE: 0x8000 */
+--- a/arch/mips/ath25/ar2315_regs.h
+++ b/arch/mips/ath25/ar2315_regs.h
+@@ -315,6 +315,9 @@
+ #define AR2315_MEM_CFG_BANKADDR_BITS_M	0x00000018
+ #define AR2315_MEM_CFG_BANKADDR_BITS_S	3
+ 
+/* GPIO MMR base address */
+#define AR2315_GPIO			0x0088
+
+ /*
+  * Local Bus Interface Registers
+  */
--- a/target/linux/ath25/patches-4.9/110-ar2313_ethernet.patch
+++ b/target/linux/ath25/patches-4.9/110-ar2313_ethernet.patch
--- a/target/linux/ath25/patches-4.9/120-spiflash.patch
+++ b/target/linux/ath25/patches-4.9/120-spiflash.patch
@ -0,0 +1,634 @@
+--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
+@@ -120,6 +120,10 @@ config MTD_BCM47XXSFLASH
+ 	  registered by bcma as platform devices. This enables driver for
+ 	  serial flash memories.
+ 
+config MTD_AR2315
+	tristate "Atheros AR2315+ SPI Flash support"
+	depends on SOC_AR2315
+
+ config MTD_SLRAM
+ 	tristate "Uncached system RAM"
+ 	help
+--- a/drivers/mtd/devices/Makefile
+++ b/drivers/mtd/devices/Makefile
+@@ -14,6 +14,7 @@ obj-$(CONFIG_MTD_DATAFLASH)	+= mtd_dataf
+ obj-$(CONFIG_MTD_M25P80)	+= m25p80.o
+ obj-$(CONFIG_MTD_SPEAR_SMI)	+= spear_smi.o
+ obj-$(CONFIG_MTD_SST25L)	+= sst25l.o
+obj-$(CONFIG_MTD_AR2315)	+= ar2315.o
+ obj-$(CONFIG_MTD_BCM47XXSFLASH)	+= bcm47xxsflash.o
+ obj-$(CONFIG_MTD_ST_SPI_FSM)    += st_spi_fsm.o
+ obj-$(CONFIG_MTD_POWERNV_FLASH)	+= powernv_flash.o
+--- /dev/null
+++ b/drivers/mtd/devices/ar2315.c
+@@ -0,0 +1,459 @@
+
+/*
+ * 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@nbd.name>
+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
+ *
+ * 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/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/delay.h>
+#include <linux/io.h>
+#include <linux/mutex.h>
+
+#include "ar2315_spiflash.h"
+
+#define DRIVER_NAME "ar2315-spiflash"
+
+#define busy_wait(_priv, _condition, _wait) do { \
+	while (_condition) { \
+		if (_wait > 1) \
+			msleep(_wait); \
+		else if ((_wait == 1) && need_resched()) \
+			schedule(); \
+		else \
+			udelay(1); \
+	} \
+} 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;
+};
+
+static 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;
+};
+
+static 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 __iomem *readaddr; /* memory mapped data for read  */
+	void __iomem *mmraddr;  /* memory mapped register space */
+	struct mutex lock;	/* serialize registers access */
+};
+
+#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 ioread32(priv->mmraddr + reg);
+}
+
+static void
+spiflash_write_reg(struct spiflash_priv *priv, int reg, u32 data)
+{
+	iowrite32(data, priv->mmraddr + reg);
+}
+
+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 platform_device *pdev, struct spiflash_priv *priv)
+{
+	u32 sig = spiflash_sendcmd(priv, SPI_RD_SIG, 0);
+	int flash_size;
+
+	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:
+		dev_warn(&pdev->dev, "read of flash device signature failed!\n");
+		return 0;
+	}
+
+	return flash_size;
+}
+
+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);
+}
+
+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;
+
+	mutex_lock(&priv->lock);
+
+	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);
+
+	mutex_unlock(&priv->lock);
+
+	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);
+
+	if (!len)
+		return 0;
+
+	if (from + len > mtd->size)
+		return -EINVAL;
+
+	*retlen = len;
+
+	mutex_lock(&priv->lock);
+
+	memcpy_fromio(buf, priv->readaddr + from, len);
+
+	mutex_unlock(&priv->lock);
+
+	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);
+
+		mutex_lock(&priv->lock);
+
+		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);
+
+		mutex_unlock(&priv->lock);
+
+		bytes_left -= read_len;
+		to += read_len;
+		buf += read_len;
+
+		*retlen += read_len;
+	} while (bytes_left != 0);
+
+	return 0;
+}
+
+#if defined CONFIG_MTD_REDBOOT_PARTS || CONFIG_MTD_MYLOADER_PARTS
+static const char * const part_probe_types[] = {
+	"cmdlinepart", "RedBoot", "MyLoader", NULL
+};
+#endif
+
+static int
+spiflash_probe(struct platform_device *pdev)
+{
+	struct spiflash_priv *priv;
+	struct mtd_info *mtd;
+	struct resource *res;
+	int index;
+	int result = 0;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	mutex_init(&priv->lock);
+	mtd = &priv->mtd;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	priv->mmraddr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->mmraddr)) {
+		dev_warn(&pdev->dev, "failed to map flash MMR\n");
+		return PTR_ERR(priv->mmraddr);
+	}
+
+	index = spiflash_probe_chip(pdev, priv);
+	if (!index) {
+		dev_warn(&pdev->dev, "found no flash device\n");
+		return -ENODEV;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->readaddr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->readaddr)) {
+		dev_warn(&pdev->dev, "failed to map flash read mem\n");
+		return PTR_ERR(priv->readaddr);
+	}
+
+	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;
+
+	dev_info(&pdev->dev, "%lld Kbytes flash detected\n", mtd->size >> 10);
+
+#if defined CONFIG_MTD_REDBOOT_PARTS || CONFIG_MTD_MYLOADER_PARTS
+	/* parse redboot partitions */
+
+	result = mtd_device_parse_register(mtd, part_probe_types,
+					   NULL, NULL, 0);
+#endif
+
+	return result;
+}
+
+static int
+spiflash_remove(struct platform_device *pdev)
+{
+	struct spiflash_priv *priv = platform_get_drvdata(pdev);
+
+	mtd_device_unregister(&priv->mtd);
+
+	return 0;
+}
+
+static struct platform_driver spiflash_driver = {
+	.driver.name = DRIVER_NAME,
+	.probe = spiflash_probe,
+	.remove = spiflash_remove,
+};
+
+module_platform_driver(spiflash_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("OpenWrt.org");
+MODULE_AUTHOR("Atheros Communications Inc");
+MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros AR2315+ SOC");
+MODULE_ALIAS("platform:" DRIVER_NAME);
+
+--- /dev/null
+++ b/drivers/mtd/devices/ar2315_spiflash.h
+@@ -0,0 +1,106 @@
+/*
+ * Atheros AR2315 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@nbd.name>
+ *
+ * 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 SPI_FLASH_CTL           0x00
+#define SPI_FLASH_OPCODE        0x04
+#define SPI_FLASH_DATA          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
+
+#define SPI_STATUS_WIP		STM_STATUS_WIP
+
+#endif
+--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
+@@ -220,6 +220,28 @@ static struct platform_device ar2315_gpi
+ 	.num_resources = ARRAY_SIZE(ar2315_gpio_res)
+ };
+ 
+static struct resource ar2315_spiflash_res[] = {
+	{
+		.name = "spiflash_read",
+		.flags = IORESOURCE_MEM,
+		.start = AR2315_SPI_READ_BASE,
+		.end = AR2315_SPI_READ_BASE + AR2315_SPI_READ_SIZE - 1,
+	},
+	{
+		.name = "spiflash_mmr",
+		.flags = IORESOURCE_MEM,
+		.start = AR2315_SPI_MMR_BASE,
+		.end = AR2315_SPI_MMR_BASE + AR2315_SPI_MMR_SIZE - 1,
+	},
+};
+
+static struct platform_device ar2315_spiflash = {
+	.id = 0,
+	.name = "ar2315-spiflash",
+	.resource = ar2315_spiflash_res,
+	.num_resources = ARRAY_SIZE(ar2315_spiflash_res)
+};
+
+ void __init ar2315_init_devices(void)
+ {
+ 	/* Find board configuration */
+@@ -230,6 +252,8 @@ void __init ar2315_init_devices(void)
+ 	ar2315_gpio_res[1].end = ar2315_gpio_res[1].start;
+ 	platform_device_register(&ar2315_gpio);
+ 
+	platform_device_register(&ar2315_spiflash);
+
+ 	ar2315_eth_data.macaddr = ath25_board.config->enet0_mac;
+ 	ath25_add_ethernet(0, AR2315_ENET0_BASE, "eth0_mii",
+ 			   AR2315_ENET0_MII_BASE, AR2315_IRQ_ENET0,
--- a/target/linux/ath25/patches-4.9/130-watchdog.patch
+++ b/target/linux/ath25/patches-4.9/130-watchdog.patch
@ -0,0 +1,277 @@
+--- /dev/null
+++ b/drivers/watchdog/ar2315-wtd.c
+@@ -0,0 +1,209 @@
+/*
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * 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 <linux/io.h>
+#include <linux/uaccess.h>
+
+#define DRIVER_NAME	"ar2315-wdt"
+
+#define CLOCK_RATE 40000000
+#define HEARTBEAT(x) (x < 1 || x > 90 ? 20 : x)
+
+#define WDT_REG_TIMER		0x00
+#define WDT_REG_CTRL		0x04
+
+#define WDT_CTRL_ACT_NONE	0x00000000	/* No action */
+#define WDT_CTRL_ACT_NMI	0x00000001	/* NMI on watchdog */
+#define WDT_CTRL_ACT_RESET	0x00000002	/* reset on watchdog */
+
+static int wdt_timeout = 20;
+static int started;
+static int in_use;
+static void __iomem *wdt_base;
+
+static inline void ar2315_wdt_wr(unsigned reg, u32 val)
+{
+	iowrite32(val, wdt_base + reg);
+}
+
+static void
+ar2315_wdt_enable(void)
+{
+	ar2315_wdt_wr(WDT_REG_TIMER, wdt_timeout * CLOCK_RATE);
+}
+
+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 = 1;
+	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)
+{
+	struct platform_device *pdev = (struct platform_device *)dev;
+
+	if (started) {
+		dev_crit(&pdev->dev, "watchdog expired, rebooting system\n");
+		emergency_restart();
+	} else {
+		ar2315_wdt_wr(WDT_REG_CTRL, 0);
+		ar2315_wdt_wr(WDT_REG_TIMER, 0);
+	}
+	return IRQ_HANDLED;
+}
+
+static struct watchdog_info ident = {
+	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+	.identity = "ar2315 Watchdog",
+};
+
+static long
+ar2315_wdt_ioctl(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((void __user *)arg, &ident, sizeof(ident)) ?
+		      -EFAULT : 0;
+		break;
+	case WDIOC_KEEPALIVE:
+		ar2315_wdt_enable();
+		ret = 0;
+		break;
+	case WDIOC_SETTIMEOUT:
+		ret = get_user(new_wdt_timeout, (int __user *)arg);
+		if (ret)
+			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 const 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)
+{
+	struct resource *mem_res, *irq_res;
+	int ret = 0;
+
+	if (wdt_base)
+		return -EBUSY;
+
+	irq_res = platform_get_resource(dev, IORESOURCE_IRQ, 0);
+	if (!irq_res) {
+		dev_err(&dev->dev, "no IRQ resource\n");
+		return -ENOENT;
+	}
+
+	mem_res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	wdt_base = devm_ioremap_resource(&dev->dev, mem_res);
+	if (IS_ERR(wdt_base))
+		return PTR_ERR(wdt_base);
+
+	ret = devm_request_irq(&dev->dev, irq_res->start, ar2315_wdt_interrupt,
+			       0, DRIVER_NAME, dev);
+	if (ret) {
+		dev_err(&dev->dev, "failed to register inetrrupt\n");
+		goto out;
+	}
+
+	ret = misc_register(&ar2315_wdt_miscdev);
+	if (ret)
+		dev_err(&dev->dev, "failed to register miscdev\n");
+
+out:
+	return ret;
+}
+
+static int
+ar2315_wdt_remove(struct platform_device *dev)
+{
+	misc_deregister(&ar2315_wdt_miscdev);
+	return 0;
+}
+
+static struct platform_driver ar2315_wdt_driver = {
+	.probe = ar2315_wdt_probe,
+	.remove = ar2315_wdt_remove,
+	.driver = {
+		.name = DRIVER_NAME,
+		.owner = THIS_MODULE,
+	},
+};
+
+module_platform_driver(ar2315_wdt_driver);
+
+MODULE_DESCRIPTION("Atheros AR2315 hardware watchdog driver");
+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRIVER_NAME);
+--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
+@@ -1554,6 +1554,13 @@ config PIC32_DMT
+ 	  To compile this driver as a loadable module, choose M here.
+ 	  The module will be called pic32-dmt.
+ 
+config AR2315_WDT
+	tristate "Atheros AR2315+ WiSoCs Watchdog Timer"
+	depends on ATH25
+	help
+	  Hardware driver for the built-in watchdog timer on the Atheros
+	  AR2315/AR2316 WiSoCs.
+
+ # PARISC Architecture
+ 
+ # POWERPC Architecture
+--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
+@@ -159,6 +159,7 @@ obj-$(CONFIG_WDT_MTX1) += mtx-1_wdt.o
+ obj-$(CONFIG_PNX833X_WDT) += pnx833x_wdt.o
+ obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
+ obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
+obj-$(CONFIG_AR2315_WDT) += ar2315-wtd.o
+ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
+ obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o
+ octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o
+--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
+@@ -220,6 +220,24 @@ static struct platform_device ar2315_gpi
+ 	.num_resources = ARRAY_SIZE(ar2315_gpio_res)
+ };
+ 
+static struct resource ar2315_wdt_res[] = {
+	{
+		.flags = IORESOURCE_MEM,
+		.start = AR2315_RST_BASE + AR2315_WDT_TIMER,
+		.end = AR2315_RST_BASE + AR2315_WDT_TIMER + 8 - 1,
+	},
+	{
+		.flags = IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device ar2315_wdt = {
+	.id = 0,
+	.name = "ar2315-wdt",
+	.resource = ar2315_wdt_res,
+	.num_resources = ARRAY_SIZE(ar2315_wdt_res)
+};
+
+ static struct resource ar2315_spiflash_res[] = {
+ 	{
+ 		.name = "spiflash_read",
+@@ -252,6 +270,11 @@ void __init ar2315_init_devices(void)
+ 	ar2315_gpio_res[1].end = ar2315_gpio_res[1].start;
+ 	platform_device_register(&ar2315_gpio);
+ 
+	ar2315_wdt_res[1].start = irq_create_mapping(ar2315_misc_irq_domain,
+						     AR2315_MISC_IRQ_WATCHDOG);
+	ar2315_wdt_res[1].end = ar2315_wdt_res[1].start;
+	platform_device_register(&ar2315_wdt);
+
+ 	platform_device_register(&ar2315_spiflash);
+ 
+ 	ar2315_eth_data.macaddr = ath25_board.config->enet0_mac;
--- a/target/linux/ath25/patches-4.9/140-redboot_boardconfig.patch
+++ b/target/linux/ath25/patches-4.9/140-redboot_boardconfig.patch
@ -0,0 +1,60 @@
+--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
+@@ -30,6 +30,8 @@
+ #include <linux/mtd/partitions.h>
+ #include <linux/module.h>
+ 
+#define BOARD_CONFIG_PART		"boardconfig"
+
+ struct fis_image_desc {
+     unsigned char name[16];      // Null terminated name
+     uint32_t	  flash_base;    // Address within FLASH of image
+@@ -60,6 +62,7 @@ static int parse_redboot_partitions(stru
+ 				    const struct mtd_partition **pparts,
+ 				    struct mtd_part_parser_data *data)
+ {
+	unsigned long max_offset = 0;
+ 	int nrparts = 0;
+ 	struct fis_image_desc *buf;
+ 	struct mtd_partition *parts;
+@@ -225,14 +228,15 @@ static int parse_redboot_partitions(stru
+ 		}
+ 	}
+ #endif
+-	parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
+	parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen +
+			sizeof(BOARD_CONFIG_PART), GFP_KERNEL);
+ 
+ 	if (!parts) {
+ 		ret = -ENOMEM;
+ 		goto out;
+ 	}
+ 
+-	nullname = (char *)&parts[nrparts];
+	nullname = (char *)&parts[nrparts + 1];
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+ 	if (nulllen > 0) {
+ 		strcpy(nullname, nullstring);
+@@ -251,6 +255,8 @@ static int parse_redboot_partitions(stru
+ 	}
+ #endif
+ 	for ( ; i<nrparts; i++) {
+		if (max_offset < buf[i].flash_base + buf[i].size)
+			max_offset = buf[i].flash_base + buf[i].size;
+ 		parts[i].size = fl->img->size;
+ 		parts[i].offset = fl->img->flash_base;
+ 		parts[i].name = names;
+@@ -284,6 +290,13 @@ static int parse_redboot_partitions(stru
+ 		fl = fl->next;
+ 		kfree(tmp_fl);
+ 	}
+	if (master->size - max_offset >= master->erasesize) {
+		parts[nrparts].size = master->size - max_offset;
+		parts[nrparts].offset = max_offset;
+		parts[nrparts].name = names;
+		strcpy(names, BOARD_CONFIG_PART);
+		nrparts++;
+	}
+ 	ret = nrparts;
+ 	*pparts = parts;
+  out:
--- a/target/linux/ath25/patches-4.9/141-redboot_partition_scan.patch
+++ b/target/linux/ath25/patches-4.9/141-redboot_partition_scan.patch
@ -0,0 +1,44 @@
+--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
+@@ -79,12 +79,18 @@ static int parse_redboot_partitions(stru
+ 	static char nullstring[] = "unallocated";
+ #endif
+ 
+	buf = vmalloc(master->erasesize);
+	if (!buf)
+		return -ENOMEM;
+
+ restart:
+ 	if ( directory < 0 ) {
+ 		offset = master->size + directory * master->erasesize;
+ 		while (mtd_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;
+@@ -97,10 +103,6 @@ static int parse_redboot_partitions(stru
+ 				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);
+@@ -173,6 +175,11 @@ static int parse_redboot_partitions(stru
+ 	}
+ 	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;
--- a/target/linux/ath25/patches-4.9/142-redboot_various_erase_size_fix.patch
+++ b/target/linux/ath25/patches-4.9/142-redboot_various_erase_size_fix.patch
@ -0,0 +1,72 @@
+--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
+@@ -58,6 +58,22 @@ static inline int redboot_checksum(struc
+ 	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,
+ 				    const struct mtd_partition **pparts,
+ 				    struct mtd_part_parser_data *data)
+@@ -74,6 +90,7 @@ static int parse_redboot_partitions(stru
+ 	int namelen = 0;
+ 	int nulllen = 0;
+ 	int numslots;
+	int first_slot;
+ 	unsigned long offset;
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+ 	static char nullstring[] = "unallocated";
+@@ -186,7 +203,10 @@ static int parse_redboot_partitions(stru
+ 		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) {
+@@ -262,12 +282,13 @@ static int parse_redboot_partitions(stru
+ 	}
+ #endif
+ 	for ( ; i<nrparts; i++) {
+-		if (max_offset < buf[i].flash_base + buf[i].size)
+-			max_offset = buf[i].flash_base + buf[i].size;
+ 		parts[i].size = fl->img->size;
+ 		parts[i].offset = fl->img->flash_base;
+ 		parts[i].name = names;
+ 
+		if (max_offset < parts[i].offset + parts[i].size)
+			max_offset = parts[i].offset + parts[i].size;
+
+ 		strcpy(names, fl->img->name);
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_READONLY
+ 		if (!memcmp(names, "RedBoot", 8) ||
+@@ -297,7 +318,9 @@ static int parse_redboot_partitions(stru
+ 		fl = fl->next;
+ 		kfree(tmp_fl);
+ 	}
+-	if (master->size - max_offset >= master->erasesize) {
+
+	if (master->size - max_offset >=
+	    mtd_get_offset_erasesize(master, max_offset)) {
+ 		parts[nrparts].size = master->size - max_offset;
+ 		parts[nrparts].offset = max_offset;
+ 		parts[nrparts].name = names;
--- a/target/linux/ath25/patches-4.9/210-reset_button.patch
+++ b/target/linux/ath25/patches-4.9/210-reset_button.patch
@ -0,0 +1,71 @@
+--- a/arch/mips/ath25/Makefile
+++ b/arch/mips/ath25/Makefile
+@@ -8,7 +8,7 @@
+ # Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
+ #
+ 
+-obj-y += board.o prom.o devices.o
+obj-y += board.o prom.o devices.o reset.o
+ 
+ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+ 
+--- /dev/null
+++ b/arch/mips/ath25/reset.c
+@@ -0,0 +1,57 @@
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <ath25_platform.h>
+#include "devices.h"
+
+static int __init
+ar231x_init_reset(void)
+{
+	struct platform_device *pdev;
+	struct gpio_keys_platform_data pdata;
+	struct gpio_keys_button *p;
+	int err;
+
+	if (ath25_board.config->reset_config_gpio == 0xffff)
+		return -ENODEV;
+
+	p = kzalloc(sizeof(*p), GFP_KERNEL);
+	if (!p)
+		goto err;
+
+	p->desc = "reset";
+	p->type = EV_KEY;
+	p->code = KEY_RESTART;
+	p->debounce_interval = 60;
+	p->gpio = ath25_board.config->reset_config_gpio;
+
+	memset(&pdata, 0, sizeof(pdata));
+	pdata.poll_interval = 20;
+	pdata.buttons = p;
+	pdata.nbuttons = 1;
+
+	pdev = platform_device_alloc("gpio-keys-polled", 0);
+	if (!pdev)
+		goto err_free;
+
+	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
+	if (err)
+		goto err_put_pdev;
+
+	err = platform_device_add(pdev);
+	if (err)
+		goto err_put_pdev;
+
+	return 0;
+
+err_put_pdev:
+	platform_device_put(pdev);
+err_free:
+	kfree(p);
+err:
+	return -ENOMEM;
+}
+
+module_init(ar231x_init_reset);
--- a/target/linux/ath25/patches-4.9/220-enet_micrel_workaround.patch
+++ b/target/linux/ath25/patches-4.9/220-enet_micrel_workaround.patch
@ -0,0 +1,91 @@
+--- a/drivers/net/ethernet/atheros/ar231x/ar231x.c
+++ b/drivers/net/ethernet/atheros/ar231x/ar231x.c
+@@ -135,6 +135,7 @@ static int ar231x_mdiobus_write(struct m
+ 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;
+ 
+ #ifndef ERR
+ #define ERR(fmt, args...) printk("%s: " fmt, __func__, ##args)
+@@ -167,6 +168,32 @@ static const struct net_device_ops ar231
+ #endif
+ };
+ 
+static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id)
+{
+	int phy_reg;
+
+	/**
+	 * Grab the bits from PHYIR1, and put them
+	 * in the upper half.
+	 */
+	phy_reg = mdiobus_read(bus, addr, MII_PHYSID1);
+
+	if (phy_reg < 0)
+		return -EIO;
+
+	*phy_id = (phy_reg & 0xffff) << 16;
+
+	/* Grab the bits from PHYIR2, and put them in the lower half */
+	phy_reg = mdiobus_read(bus, addr, MII_PHYSID2);
+
+	if (phy_reg < 0)
+		return -EIO;
+
+	*phy_id |= (phy_reg & 0xffff);
+
+	return 0;
+}
+
+ static int ar231x_probe(struct platform_device *pdev)
+ {
+ 	struct net_device *dev;
+@@ -273,6 +300,24 @@ static int ar231x_probe(struct platform_
+ 
+ 	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);
+@@ -329,8 +374,10 @@ static int ar231x_remove(struct platform
+ 	rx_tasklet_cleanup(dev);
+ 	ar231x_init_cleanup(dev);
+ 	unregister_netdev(dev);
+-	mdiobus_unregister(sp->mii_bus);
+-	mdiobus_free(sp->mii_bus);
+	if (sp->mii_bus) {
+		mdiobus_unregister(sp->mii_bus);
+		mdiobus_free(sp->mii_bus);
+	}
+ 	kfree(dev);
+ 	return 0;
+ }
+@@ -1079,6 +1126,9 @@ static int ar231x_ioctl(struct net_devic
+ {
+ 	struct ar231x_private *sp = netdev_priv(dev);
+ 
+	if (!sp->phy_dev)
+		return -ENODEV;
+
+ 	switch (cmd) {
+ 	case SIOCGMIIPHY:
+ 	case SIOCGMIIREG:
--- a/target/linux/ath25/patches-4.9/330-board_leds.patch
+++ b/target/linux/ath25/patches-4.9/330-board_leds.patch
@ -0,0 +1,116 @@
+--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
+@@ -23,6 +23,7 @@
+ #include <linux/reboot.h>
+ #include <linux/delay.h>
+ #include <linux/gpio.h>
+#include <linux/leds.h>
+ #include <asm/bootinfo.h>
+ #include <asm/reboot.h>
+ #include <asm/time.h>
+@@ -260,6 +261,50 @@ static struct platform_device ar2315_spi
+ 	.num_resources = ARRAY_SIZE(ar2315_spiflash_res)
+ };
+ 
+#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_leds(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 == ath25_board.config->reset_config_gpio))
+			continue;
+
+		if (i == ath25_board.config->sys_led_gpio)
+			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_leds(void)
+{
+}
+#endif
+
+ void __init ar2315_init_devices(void)
+ {
+ 	/* Find board configuration */
+@@ -270,6 +315,8 @@ void __init ar2315_init_devices(void)
+ 	ar2315_gpio_res[1].end = ar2315_gpio_res[1].start;
+ 	platform_device_register(&ar2315_gpio);
+ 
+	ar2315_init_gpio_leds();
+
+ 	ar2315_wdt_res[1].start = irq_create_mapping(ar2315_misc_irq_domain,
+ 						     AR2315_MISC_IRQ_WATCHDOG);
+ 	ar2315_wdt_res[1].end = ar2315_wdt_res[1].start;
+--- a/arch/mips/ath25/ar5312.c
+++ b/arch/mips/ath25/ar5312.c
+@@ -23,6 +23,7 @@
+ #include <linux/mtd/physmap.h>
+ #include <linux/reboot.h>
+ #include <linux/gpio.h>
+#include <linux/leds.h>
+ #include <asm/bootinfo.h>
+ #include <asm/reboot.h>
+ #include <asm/time.h>
+@@ -231,6 +232,23 @@ static struct platform_device ar5312_gpi
+ 	.num_resources = ARRAY_SIZE(ar5312_gpio_res),
+ };
+ 
+#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
+
+ static void __init ar5312_flash_init(void)
+ {
+ 	void __iomem *flashctl_base;
+@@ -301,6 +319,11 @@ void __init ar5312_init_devices(void)
+ 
+ 	platform_device_register(&ar5312_gpio);
+ 
+#ifdef CONFIG_LEDS_GPIO
+	ar5312_leds[0].gpio = config->sys_led_gpio;
+	platform_device_register(&ar5312_gpio_leds);
+#endif
+
+ 	/* Fix up MAC addresses if necessary */
+ 	if (is_broadcast_ether_addr(config->enet0_mac))
+ 		ether_addr_copy(config->enet0_mac, config->enet1_mac);