adm8668: add 3.18 support

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 45094

19 files changed, 1465 insertions, 0 deletions

diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/Kconfig b/target/linux/adm8668/files-3.18/arch/mips/adm8668/Kconfig
new file mode 100644
index 0000000..2e7281f
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/Kconfig
@@ -0,0 +1,2 @@
+config ARM_AMBA
+	def_bool y
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/Makefile b/target/linux/adm8668/files-3.18/arch/mips/adm8668/Makefile
new file mode 100644
index 0000000..515c3a4
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/Makefile
@@ -0,0 +1,6 @@
+#
+# something witty  --neutronscott
+#
+
+obj-y	 	:= irq.o prom.o platform.o gpio.o \
+		   setup.o clock.o time.o early_printk.o \
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/Platform b/target/linux/adm8668/files-3.18/arch/mips/adm8668/Platform
new file mode 100644
index 0000000..c70cd27
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/Platform
@@ -0,0 +1,6 @@
+#
+# Infineon ADM8668 WildPass
+#
+platform-$(CONFIG_ADM8668)	+= adm8668/
+cflags-$(CONFIG_ADM8668)	+= -I$(srctree)/arch/mips/include/asm/mach-adm8668
+load-$(CONFIG_ADM8668)		+= 0xffffffff80002000
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/clock.c b/target/linux/adm8668/files-3.18/arch/mips/adm8668/clock.c
new file mode 100644
index 0000000..1e010fc
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/clock.c
@@ -0,0 +1,76 @@
+/*
+ * ADM8668 minimal clock support
+ *
+ * Copyright (C) 2012, Florian Fainelli <florian@openwrt.org>
+ *
+ * Licensed under the terms of the GPLv2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+
+#include <adm8668.h>
+
+struct clk {
+	unsigned long rate;
+};
+
+static struct clk uart_clk = {
+	.rate	= 62500000,
+};
+
+static struct clk sys_clk;
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+	const char *lookup = id;
+
+	if (dev)
+		lookup = dev_name(dev);
+
+	if (!strcmp(lookup, "apb:uart0"))
+		return &uart_clk;
+	if (!strcmp(lookup, "sys"))
+		return &sys_clk;
+
+	return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return clk->rate;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
+
+void __init adm8668_init_clocks(void)
+{
+	u32 adj;
+
+	/* adjustable clock selection
+	 * CR3 bit 14~11, 0000 -> 175MHz, 0001 -> 180MHz, etc...
+	 */
+	adj = (ADM8668_CONFIG_REG(ADM8668_CR3) >> 11) & 0xf;
+	sys_clk.rate = 175000000 + (adj * 5000000);
+
+	pr_info("ADM8668 CPU clock: %lu MHz\n", sys_clk.rate / 1000000);
+}
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/early_printk.c b/target/linux/adm8668/files-3.18/arch/mips/adm8668/early_printk.c
new file mode 100644
index 0000000..03dd72a
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/early_printk.c
@@ -0,0 +1,16 @@
+#include <linux/io.h>
+#include <linux/amba/serial.h>
+#include <adm8668.h>
+
+#define UART_READ(r) \
+	__raw_readl((void __iomem *)(KSEG1ADDR(ADM8668_UART0_BASE) + (r)))
+
+#define UART_WRITE(v, r) \
+	__raw_writel((v), (void __iomem *)(KSEG1ADDR(ADM8668_UART0_BASE) + (r)))
+
+void prom_putchar(char c)
+{
+	UART_WRITE(c, UART01x_DR);
+	while ((UART_READ(UART01x_FR) & UART01x_FR_TXFF) != 0)
+		;
+}
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/gpio.c b/target/linux/adm8668/files-3.18/arch/mips/adm8668/gpio.c
new file mode 100644
index 0000000..fb39f7f
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/gpio.c
@@ -0,0 +1,123 @@
+/*
+ * Infineon/ADMTek ADM8668 WildPass GPIO support
+ *
+ * Copyright (C) 2012 Florian Fainelli <florian@openwrt.org>
+ *
+ * Licensed under the terms of GPLv2.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+
+#include <adm8668.h>
+
+#define GPIO_MASK	0x3f
+
+#define GPIO_IN_OFS	0
+#define GPIO_OUT_OFS	6
+#define GPIO_OE_OFS	12
+
+struct adm8668_gpio_chip {
+	void __iomem	*base;
+	struct gpio_chip chip;
+};
+
+static int adm8668_gpio_dir_out(struct gpio_chip *chip,
+				unsigned offset, int value)
+{
+	struct adm8668_gpio_chip *c =
+		container_of(chip, struct adm8668_gpio_chip, chip);
+	u32 mask;
+
+	/* clear input, set output enable and output value */
+	mask = __raw_readl(c->base);
+	mask &= ~(1 << offset);
+	mask |= (1 << (offset + GPIO_OE_OFS));
+	if (value)
+		mask |= (1 << (offset + GPIO_OUT_OFS));
+	else
+		mask &= ~(1 << (offset + GPIO_OUT_OFS));
+	__raw_writel(mask, c->base);
+
+	return 0;
+}
+
+static int adm8668_gpio_dir_in(struct gpio_chip *chip,
+				unsigned offset)
+{
+	struct adm8668_gpio_chip *c =
+		container_of(chip, struct adm8668_gpio_chip, chip);
+	u32 mask;
+
+	mask = __raw_readl(c->base);
+	mask &= ~(((1 << (offset + GPIO_OE_OFS)) | (1 << (offset + GPIO_OUT_OFS))));
+	mask |= (1 << offset);
+	__raw_writel(mask, c->base);
+
+	return 0;
+}
+
+static void adm8668_gpio_set(struct gpio_chip *chip,
+				unsigned offset, int value)
+{
+	struct adm8668_gpio_chip *c =
+		container_of(chip, struct adm8668_gpio_chip, chip);
+	u32 mask;
+
+	mask = __raw_readl(c->base);
+	if (value)
+		mask |= (1 << (offset + GPIO_OUT_OFS));
+	else
+		mask &= ~(1 << (offset + GPIO_OUT_OFS));
+	__raw_writel(mask, c->base);
+}
+
+static int adm8668_gpio_get(struct gpio_chip *chip,
+				unsigned offset)
+{
+	struct adm8668_gpio_chip *c =
+		container_of(chip, struct adm8668_gpio_chip, chip);
+	u32 value;
+
+	value = __raw_readl(c->base) & GPIO_MASK;
+
+	return value & (1 << offset);
+}
+
+static struct adm8668_gpio_chip adm8668_gpio_cpu = {
+	.base = (void __iomem *)KSEG1ADDR(ADM8668_CONFIG_BASE + CRGPIO_REG),
+	.chip = {
+		.label			= "adm8668-cpu-gpio",
+		.direction_output	= adm8668_gpio_dir_out,
+		.direction_input	= adm8668_gpio_dir_in,
+		.set			= adm8668_gpio_set,
+		.get			= adm8668_gpio_get,
+		.ngpio			= 6,
+	},
+};
+
+static struct adm8668_gpio_chip adm8668_gpio_wlan = {
+	.base = (void __iomem *)KSEG1ADDR(ADM8668_WLAN_BASE + GPIO_REG),
+	.chip = {
+		.label			= "adm8668-wlan-gpio",
+		.direction_output	= adm8668_gpio_dir_out,
+		.direction_input	= adm8668_gpio_dir_in,
+		.set			= adm8668_gpio_set,
+		.get			= adm8668_gpio_get,
+		.ngpio			= 6,
+		.base			= 6,
+	},
+};
+
+static int __init adm8668_gpio_init(void)
+{
+	int ret;
+
+	ret = gpiochip_add(&adm8668_gpio_cpu.chip);
+	if (ret)
+		return ret;
+
+	return gpiochip_add(&adm8668_gpio_wlan.chip);
+}
+arch_initcall(adm8668_gpio_init);
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/irq.c b/target/linux/adm8668/files-3.18/arch/mips/adm8668/irq.c
new file mode 100644
index 0000000..9d3b2b9
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/irq.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
+ * Copyright (C) 2012 Florian Fainelli <florian@openwrt.org>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/pm.h>
+#include <linux/irq.h>
+#include <asm/mipsregs.h>
+#include <asm/irq_cpu.h>
+#include <asm/irq.h>
+#include <adm8668.h>
+
+/* interrupt controller */
+#define IRQ_STATUS_REG		0x00	/* Read */
+#define IRQ_ENABLE_REG		0x08	/* Read/Write */
+#define IRQ_DISABLE_REG		0x0C	/* Write */
+
+#define IRQ_MASK		0xffff
+
+static inline void intc_write_reg(u32 val, unsigned int reg)
+{
+	void __iomem *base = (void __iomem *)KSEG1ADDR(ADM8668_INTC_BASE);
+
+	__raw_writel(val, base + reg);
+}
+
+static inline u32 intc_read_reg(unsigned int reg)
+{
+	void __iomem *base = (void __iomem *)KSEG1ADDR(ADM8668_INTC_BASE);
+
+	return __raw_readl(base + reg);
+}
+
+static void adm8668_irq_cascade(void)
+{
+	int irq;
+	u32 intsrc;
+
+	intsrc = intc_read_reg(IRQ_STATUS_REG) & IRQ_MASK;
+	if (intsrc) {
+		irq = fls(intsrc) - 1;
+		do_IRQ(irq);
+	} else
+		spurious_interrupt();
+}
+
+/*
+ * System irq dispatch
+ */
+void plat_irq_dispatch(void)
+{
+	unsigned int pending;
+
+	pending = read_c0_cause() & read_c0_status() & ST0_IM;
+
+	/* timer interrupt, that we renumbered */
+	if (pending & STATUSF_IP7)
+		do_IRQ(MIPS_CPU_IRQ_BASE + 7);
+	else if (pending & STATUSF_IP2)
+		adm8668_irq_cascade();
+	else
+		spurious_interrupt();
+}
+
+/*
+ * enable 8668 irq
+ */
+static void enable_adm8668_irq(struct irq_data *d)
+{
+	intc_write_reg((1 << d->irq), IRQ_ENABLE_REG);
+}
+
+
+static void ack_adm8668_irq(struct irq_data *d)
+{
+	intc_write_reg((1 << d->irq), IRQ_DISABLE_REG);
+}
+
+/*
+ * system irq type
+ */
+
+static struct irq_chip adm8668_irq_type = {
+	.name = "adm8668",
+	.irq_ack = ack_adm8668_irq,
+	.irq_mask = ack_adm8668_irq,
+	.irq_unmask = enable_adm8668_irq
+};
+
+/*
+ * irq init
+ */
+static void __init init_adm8668_irqs(void)
+{
+	int i;
+
+	/* disable all interrupts for the moment */
+	intc_write_reg(IRQ_MASK, IRQ_DISABLE_REG);
+
+	for (i = 0; i <= ADM8668_IRQ_MAX; i++)
+		irq_set_chip_and_handler(i, &adm8668_irq_type,
+			handle_level_irq);
+
+	/* hw0 is where our interrupts are uh.. interrupted at. */
+	set_c0_status(IE_IRQ0);
+}
+
+/*
+ * system init
+ */
+void __init arch_init_irq(void)
+{
+	mips_cpu_irq_init();
+	init_adm8668_irqs();
+}
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/platform.c b/target/linux/adm8668/files-3.18/arch/mips/adm8668/platform.c
new file mode 100644
index 0000000..9e40691
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/platform.c
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
+ * Copyright (C) 2012 Florian Fainelli <florian@openwrt.org>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/tulip.h>
+#include <linux/usb/ehci_pdriver.h>
+#include <linux/mtd/physmap.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/serial.h>
+
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <adm8668.h>
+
+#define ADM8868_UBOOT_ENV		0x20000
+#define ADM8868_UBOOT_WAN_MAC		0x5ac
+#define ADM8868_UBOOT_LAN_MAC		0x404
+
+static void adm8668_uart_set_mctrl(struct amba_device *dev,
+					void __iomem *base,
+					unsigned int mcrtl)
+{
+}
+
+static struct amba_pl010_data adm8668_uart0_data = {
+	.set_mctrl = adm8668_uart_set_mctrl,
+};
+
+static struct amba_device adm8668_uart0_device = {
+	.dev = {
+		.init_name	= "apb:uart0",
+		.platform_data	= &adm8668_uart0_data,
+	},
+	.res = {
+		.start		= ADM8668_UART0_BASE,
+		.end		= ADM8668_UART0_BASE + 0xF,
+		.flags		= IORESOURCE_MEM,
+	},
+	.irq = {
+		ADM8668_UART0_IRQ,
+		-1
+	},
+	.periphid = 0x0041010,
+};
+
+static struct resource eth0_resources[] = {
+	{
+		.start		= ADM8668_LAN_BASE,
+		.end		= ADM8668_LAN_BASE + 256,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= ADM8668_LAN_IRQ,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct tulip_platform_data eth0_pdata = {
+	.chip_id	= ADM8668,
+};
+
+static struct platform_device adm8668_eth0_device = {
+	.name		= "tulip",
+	.id		= 0,
+	.resource	= eth0_resources,
+	.num_resources	= ARRAY_SIZE(eth0_resources),
+	.dev.platform_data = &eth0_pdata,
+};
+
+static struct resource eth1_resources[] = {
+	{
+		.start		= ADM8668_WAN_BASE,
+		.end		= ADM8668_WAN_BASE + 256,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= ADM8668_WAN_IRQ,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct tulip_platform_data eth1_pdata = {
+	.chip_id	= ADM8668,
+};
+
+static struct platform_device adm8668_eth1_device = {
+	.name		= "tulip",
+	.id		= 1,
+	.resource	= eth1_resources,
+	.num_resources	= ARRAY_SIZE(eth1_resources),
+	.dev.platform_data = &eth1_pdata,
+};
+
+static struct resource usb_resources[] = {
+	{
+		.start	= ADM8668_USB_BASE,
+		.end	= ADM8668_USB_BASE + 0x1FFFFF,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= ADM8668_USB_IRQ,
+		.end	= ADM8668_USB_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct usb_ehci_pdata usb_pdata = {
+	.caps_offset	= 0x100,
+	.has_tt		= 1,
+};
+
+static struct platform_device adm8668_usb_device = {
+	.name		= "ehci-platform",
+	.id		= -1,
+	.resource	= usb_resources,
+	.num_resources	= ARRAY_SIZE(usb_resources),
+	.dev.platform_data = &usb_pdata,
+};
+
+static struct platform_device *adm8668_devs[] = {
+	&adm8668_eth0_device,
+	&adm8668_eth1_device,
+	&adm8668_usb_device,
+};
+
+static void adm8668_fetch_mac(int unit)
+{
+	u8 *mac;
+	u32 offset;
+	struct tulip_platform_data *pdata;
+
+	switch (unit) {
+	case -1:
+	case 0:
+		offset = ADM8868_UBOOT_LAN_MAC;
+		pdata = &eth0_pdata;
+		break;
+	case 1:
+		offset = ADM8868_UBOOT_WAN_MAC;
+		pdata = &eth1_pdata;
+		break;
+	default:
+		pr_err("unsupported ethernet unit: %d\n", unit);
+		return;
+	}
+
+	mac = (u8 *)(KSEG1ADDR(ADM8668_SMEM1_BASE) + ADM8868_UBOOT_ENV + offset);
+
+	memcpy(pdata->mac, mac, sizeof(pdata->mac));
+}
+
+static void adm8668_ehci_workaround(void)
+{
+	u32 chipid;
+
+	chipid = ADM8668_CONFIG_REG(ADM8668_CR0);
+	ADM8668_CONFIG_REG(ADM8668_CR66) = 0x0C1600D9;
+
+	if (chipid == 0x86880001)
+		return;
+
+	ADM8668_CONFIG_REG(ADM8668_CR66) &= ~(3 << 20);
+	ADM8668_CONFIG_REG(ADM8668_CR66) |= (1 << 20);
+	pr_info("ADM8668: applied USB workaround\n");
+}
+
+
+int __init adm8668_devs_register(void)
+{
+	int ret;
+
+	ret = amba_device_register(&adm8668_uart0_device, &iomem_resource);
+	if (ret)
+		panic("failed to register AMBA UART");
+
+	adm8668_fetch_mac(0);
+	adm8668_fetch_mac(1);
+	adm8668_ehci_workaround();
+
+	return platform_add_devices(adm8668_devs, ARRAY_SIZE(adm8668_devs));
+}
+arch_initcall(adm8668_devs_register);
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/prom.c b/target/linux/adm8668/files-3.18/arch/mips/adm8668/prom.c
new file mode 100644
index 0000000..24b77f8
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/prom.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
+ *
+ * based on work of rb532 prom.c
+ *  Copyright (C) 2003, Peter Sadik <peter.sadik@idt.com>
+ *  Copyright (C) 2005-2006, P.Christeas <p_christ@hol.gr>
+ *  Copyright (C) 2007, Gabor Juhos <juhosg@openwrt.org>
+ *			Felix Fietkau <nbd@openwrt.org>
+ *			Florian Fainelli <florian@openwrt.org>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/console.h>
+#include <linux/string.h>
+#include <linux/serial_core.h>
+#include <asm/bootinfo.h>
+#include <adm8668.h>
+#include "u-boot.h"
+
+register volatile struct global_data *gd asm ("k0");
+
+void __init prom_free_prom_memory(void)
+{
+	/* No prom memory to free */
+}
+
+static inline int match_tag(char *arg, const char *tag)
+{
+	return strncmp(arg, tag, strlen(tag)) == 0;
+}
+
+static inline unsigned long tag2ul(char *arg, const char *tag)
+{
+	char *num;
+
+	num = arg + strlen(tag);
+	return simple_strtoul(num, 0, 10);
+}
+
+void __init prom_setup_cmdline(void)
+{
+	char *cp;
+	int prom_argc;
+	char **prom_argv;
+	int i;
+
+	prom_argc = fw_arg0;
+	prom_argv = (char **)KSEG0ADDR(fw_arg1);
+
+	cp = &(arcs_cmdline[0]);
+	for (i = 1; i < prom_argc; i++) {
+		prom_argv[i] = (char *)KSEG0ADDR(prom_argv[i]);
+
+		/* default bootargs has "console=/dev/ttyS0" yet console won't
+		 * show up at all if you include the '/dev/' nowadays ... */
+		if (match_tag(prom_argv[i], "console=/dev/")) {
+			char *ptr = prom_argv[i] + strlen("console=/dev/");
+
+			strcpy(cp, "console=");
+			cp += strlen("console=");
+			strcpy(cp, ptr);
+			cp += strlen(ptr);
+			*cp++ = ' ';
+			continue;
+		}
+		strcpy(cp, prom_argv[i]);
+		cp += strlen(prom_argv[i]);
+		*cp++ = ' ';
+	}
+	if (prom_argc > 1)
+		--cp; /* trailing space */
+
+	*cp = '\0';
+}
+
+void __init prom_init(void)
+{
+	bd_t *bd = gd->bd;
+	int memsize;
+
+	memsize = bd->bi_memsize;
+	printk("Board info:\n");
+	printk("  RAM size: %d MB\n", (int)memsize/(1024*1024));
+	printk("  NOR start: %#lx\n", bd->bi_flashstart);
+	printk("  NOR size: %#lx\n", bd->bi_flashsize);
+
+	prom_setup_cmdline();
+	add_memory_region(0, memsize, BOOT_MEM_RAM);
+}
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/setup.c b/target/linux/adm8668/files-3.18/arch/mips/adm8668/setup.c
new file mode 100644
index 0000000..b33c483
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/setup.c
@@ -0,0 +1,36 @@
+#include <linux/init.h>
+#include <linux/reboot.h>
+
+#include <asm/reboot.h>
+#include <adm8668.h>
+
+static void adm8668_restart(char *cmd)
+{
+	int i;
+
+	/* the real deal */
+	for (i = 0; i < 1000; i++)
+		;
+	ADM8668_CONFIG_REG(ADM8668_CR1) = 1;
+}
+
+void __init plat_mem_setup(void)
+{
+	_machine_restart = adm8668_restart;
+}
+
+const char *get_system_type(void)
+{
+        unsigned long chipid = ADM8668_CONFIG_REG(ADM8668_CR0);
+        int product, revision;
+	static char ret[32];
+
+        product = chipid >> 16;
+        revision = chipid & 0xffff;
+
+	/* i getting fancy :\ */
+	snprintf(ret, sizeof(ret), "ADM%xr%x", product, revision);
+
+	return ret;
+}
+
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/time.c b/target/linux/adm8668/files-3.18/arch/mips/adm8668/time.c
new file mode 100644
index 0000000..87bdd66
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/time.c
@@ -0,0 +1,20 @@
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/clk.h>
+
+#include <asm/time.h>
+#include <adm8668.h>
+
+void __init plat_time_init(void)
+{
+	struct clk *sys_clk;
+
+	adm8668_init_clocks();
+
+	sys_clk = clk_get(NULL, "sys");
+	if (IS_ERR(sys_clk))
+		panic("unable to get system clock\n");
+
+	mips_hpt_frequency = clk_get_rate(sys_clk) / 2;
+}
+
diff --git a/target/linux/adm8668/files-3.18/arch/mips/adm8668/u-boot.h b/target/linux/adm8668/files-3.18/arch/mips/adm8668/u-boot.h
new file mode 100644
index 0000000..d9d2268
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/adm8668/u-boot.h
@@ -0,0 +1,52 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#ifndef _U_BOOT_H_
+#define _U_BOOT_H_	1
+
+typedef struct bd_info {
+	int		bi_baudrate;	/* serial console baudrate */
+	unsigned long	bi_ip_addr;	/* IP Address */
+	unsigned char	bi_enetaddr[6];	/* Ethernet adress */
+	unsigned long	bi_arch_number;	/* unique id for this board */
+	unsigned long	bi_boot_params;	/* where this board expects params */
+	unsigned long	bi_memstart;	/* start of DRAM memory */
+	unsigned long	bi_memsize;	/* size	 of DRAM memory in bytes */
+	unsigned long	bi_flashstart;	/* start of FLASH memory */
+	unsigned long	bi_flashsize;	/* size  of FLASH memory */
+	unsigned long	bi_flashoffset;	/* reserved area for startup monitor */
+} bd_t;
+
+struct global_data {
+	bd_t		*bd;            /* board data... */
+	unsigned long	flags;
+	unsigned long	baudrate;
+	unsigned long	have_console;   /* serial_init() was called */
+	unsigned long	ram_size;       /* RAM size */
+	unsigned long	reloc_off;      /* Relocation Offset */
+	unsigned long	env_addr;       /* Address  of Environment struct */
+	unsigned long	env_valid;      /* Checksum of Environment valid? */
+	void		**jt;           /* jump table */
+};
+
+#endif	/* _U_BOOT_H_ */
diff --git a/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/adm8668.h b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/adm8668.h
new file mode 100644
index 0000000..8a16863
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/adm8668.h
@@ -0,0 +1,69 @@
+/************************************************************************
+ *
+ *    Copyright (c) 2005
+ *    Infineon Technologies AG
+ *    St. Martin Strasse 53; 81669 Muenchen; Germany
+ *
+ ************************************************************************/
+
+#ifndef  __ADM8668_H__
+#define  __ADM8668_H__
+
+/*=======================  Physical Memory Map  ============================*/
+#define ADM8668_SDRAM_BASE	0
+#define ADM8668_SMEM1_BASE	0x10000000
+#define ADM8668_MPMC_BASE	0x11000000
+#define ADM8668_USB_BASE	0x11200000
+#define ADM8668_CONFIG_BASE	0x11400000
+#define ADM8668_WAN_BASE	0x11600000
+#define ADM8668_WLAN_BASE	0x11800000
+#define ADM8668_LAN_BASE	0x11A00000
+#define ADM8668_INTC_BASE	0x1E000000
+#define ADM8668_TMR_BASE	0x1E200000
+#define ADM8668_UART0_BASE	0x1E400000
+#define ADM8668_SMEM0_BASE	0x1FC00000
+#define ADM8668_NAND_BASE	0x1FFFFF00
+
+#define ADM8668_PCICFG_BASE	0x12200000
+#define ADM8668_PCIDAT_BASE	0x12400000
+
+/* interrupt levels */
+#define ADM8668_SWI_IRQ		1
+#define ADM8668_COMMS_RX_IRQ	2
+#define ADM8668_COMMS_TX_IRQ	3
+#define ADM8668_TIMER0_IRQ	4
+#define ADM8668_TIMER1_IRQ	5
+#define ADM8668_UART0_IRQ	6
+#define ADM8668_LAN_IRQ		7
+#define ADM8668_WAN_IRQ		8
+#define ADM8668_WLAN_IRQ	9
+#define ADM8668_GPIO_IRQ	10
+#define ADM8668_IDE_IRQ		11
+#define ADM8668_PCI2_IRQ	12
+#define ADM8668_PCI1_IRQ	13
+#define ADM8668_PCI0_IRQ	14
+#define ADM8668_USB_IRQ		15
+#define ADM8668_IRQ_MAX		ADM8668_USB_IRQ
+
+/* register access macros */
+#define ADM8668_CONFIG_REG(_reg)	\
+	(*((volatile unsigned int *)(KSEG1ADDR(ADM8668_CONFIG_BASE + (_reg)))))
+
+/* lan registers */
+#define	NETCSR6			0x30
+#define	NETCSR7			0x38
+#define	NETCSR37		0xF8
+
+/* known/used CPU configuration registers */
+#define ADM8668_CR0		0x00
+#define ADM8668_CR1		0x04
+#define ADM8668_CR3		0x0C
+#define ADM8668_CR66		0x108
+
+/** For GPIO control **/
+#define	GPIO_REG		0x5C	/* on WLAN */
+#define CRGPIO_REG		0x20	/* on CPU */
+
+void adm8668_init_clocks(void);
+
+#endif /* __ADM8668_H__ */
diff --git a/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/asm/sizes.h b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/asm/sizes.h
new file mode 100644
index 0000000..503843d
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/asm/sizes.h
@@ -0,0 +1,56 @@
+/*
+ * 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
+ */
+/* DO NOT EDIT!! - this file automatically generated
+ *                 from .s file by awk -f s2h.awk
+ */
+/*  Size definitions
+ *  Copyright (C) ARM Limited 1998. All rights reserved.
+ */
+
+#ifndef __sizes_h
+#define __sizes_h                       1
+
+/* handy sizes */
+#define SZ_16				0x00000010
+#define SZ_256				0x00000100
+#define SZ_512				0x00000200
+
+#define SZ_1K                           0x00000400
+#define SZ_4K                           0x00001000
+#define SZ_8K                           0x00002000
+#define SZ_16K                          0x00004000
+#define SZ_64K                          0x00010000
+#define SZ_128K                         0x00020000
+#define SZ_256K                         0x00040000
+#define SZ_512K                         0x00080000
+
+#define SZ_1M                           0x00100000
+#define SZ_2M                           0x00200000
+#define SZ_4M                           0x00400000
+#define SZ_8M                           0x00800000
+#define SZ_16M                          0x01000000
+#define SZ_32M                          0x02000000
+#define SZ_64M                          0x04000000
+#define SZ_128M                         0x08000000
+#define SZ_256M                         0x10000000
+#define SZ_512M                         0x20000000
+
+#define SZ_1G                           0x40000000
+#define SZ_2G                           0x80000000
+
+#endif
+
+/*         END */
diff --git a/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/gpio.h b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/gpio.h
new file mode 100644
index 0000000..b0473fc
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/gpio.h
@@ -0,0 +1,13 @@
+#ifndef __ADM8668_GPIO_H__
+#define __ADM8668_GPIO_H__
+
+#define gpio_to_irq(gpio)       -1
+
+#define gpio_get_value __gpio_get_value
+#define gpio_set_value __gpio_set_value
+
+#define gpio_cansleep __gpio_cansleep
+
+#include <asm-generic/gpio.h>
+
+#endif
diff --git a/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/irq.h b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/irq.h
new file mode 100644
index 0000000..ea859f0
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/irq.h
@@ -0,0 +1,14 @@
+/*
+ * 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 by Ralf Baechle
+ */
+#ifndef __ASM_MACH_ADM8668_IRQ_H
+#define __ASM_MACH_ADM8668_IRQ_H
+
+#define	NR_IRQS			32
+#define	MIPS_CPU_IRQ_BASE	16
+
+#endif /* __ASM_MACH_ADM8668_IRQ_H */
diff --git a/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/war.h b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/war.h
new file mode 100644
index 0000000..7180043
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/include/asm/mach-adm8668/war.h
@@ -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) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org>
+ */
+#ifndef __ASM_MIPS_MACH_ADM8668_WAR_H
+#define __ASM_MIPS_MACH_ADM8668_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_ADM8668_WAR_H */
diff --git a/target/linux/adm8668/files-3.18/arch/mips/pci/pci-adm8668.c b/target/linux/adm8668/files-3.18/arch/mips/pci/pci-adm8668.c
new file mode 100644
index 0000000..5cfa546
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/arch/mips/pci/pci-adm8668.c
@@ -0,0 +1,200 @@
+/*
+ * Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
+ * Copyright (C) 2012 Florian Fainelli <florian@openwrt.org>
+ *
+ * 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.
+ *
+ * Note that this controller is identical to the ADM5120 one
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+
+#include <asm/byteorder.h>
+#include <asm/pci.h>
+#include <adm8668.h>
+
+static DEFINE_SPINLOCK(pci_lock);
+
+#define PCI_ENABLE			0x80000000
+#define	ADMPCI_IO_BASE			0x12600000
+#define	ADMPCI_IO_SIZE			0x1fffff
+#define	ADMPCI_MEM_BASE			0x16000000
+#define	ADMPCI_MEM_SIZE			0x7ffffff
+
+static inline void write_cfgaddr(u32 addr)
+{
+	__raw_writel((addr | PCI_ENABLE),
+			(void __iomem *)KSEG1ADDR(ADM8668_PCICFG_BASE));
+}
+
+static inline void write_cfgdata(u32 data)
+{
+	__raw_writel(data, (void __iomem *)KSEG1ADDR(ADM8668_PCIDAT_BASE));
+}
+
+static inline u32 read_cfgdata(void)
+{
+	return __raw_readl((void __iomem *)KSEG1ADDR(ADM8668_PCIDAT_BASE));
+}
+
+static inline u32 mkaddr(struct pci_bus *bus, unsigned int devfn, int where)
+{
+	return ((bus->number & 0xff) << 16) | ((devfn & 0xff) << 8) |
+		(where & 0xfc);
+}
+
+static int pci_read_config(struct pci_bus *bus, unsigned int devfn,
+				int where, int size, u32 *val)
+{
+	unsigned long flags;
+	u32 data;
+
+	spin_lock_irqsave(&pci_lock, flags);
+	write_cfgaddr(mkaddr(bus, devfn, where));
+	data = read_cfgdata();
+
+	switch (size) {
+	case 1:
+		if (where & 1)
+			data >>= 8;
+		if (where & 2)
+			data >>= 16;
+		data &= 0xff;
+		break;
+	case 2:
+		if (where & 2)
+			data >>= 16;
+		data &= 0xffff;
+		break;
+	}
+
+	*val = data;
+
+	spin_unlock_irqrestore(&pci_lock, flags);
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int pci_write_config(struct pci_bus *bus, unsigned int devfn,
+				int where, int size, u32 val)
+{
+	unsigned long flags;
+	u32 data;
+	int s;
+
+	spin_lock_irqsave(&pci_lock, flags);
+
+	write_cfgaddr(mkaddr(bus, devfn, where));
+	data = read_cfgdata();
+
+	switch (size) {
+	case 1:
+		s = ((where & 3) << 3);
+		data &= ~(0xff << s);
+		data |= ((val & 0xff) << s);
+		break;
+	case 2:
+		s = ((where & 2) << 4);
+		data &= ~(0xffff << s);
+		data |= ((val & 0xffff) << s);
+		break;
+	case 4:
+		data = val;
+		break;
+	}
+
+	write_cfgdata(data);
+
+	spin_unlock_irqrestore(&pci_lock, flags);
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops adm8668_pci_ops = {
+	.read = pci_read_config,
+	.write = pci_write_config
+};
+
+
+struct resource pciioport_resource = {
+	.name	= "adm8668_pci",
+	.start	= ADMPCI_IO_BASE,
+	.end	= ADMPCI_IO_BASE + ADMPCI_IO_SIZE,
+	.flags	= IORESOURCE_IO
+};
+
+struct resource pciiomem_resource = {
+	.name	= "adm8668_pci",
+	.start	= ADMPCI_MEM_BASE,
+	.end	= ADMPCI_MEM_BASE + ADMPCI_MEM_SIZE,
+	.flags	= IORESOURCE_MEM
+};
+
+struct pci_controller adm8668_pci_controller = {
+	.pci_ops	= &adm8668_pci_ops,
+	.io_resource	= &pciioport_resource,
+	.mem_resource	= &pciiomem_resource,
+};
+
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	switch (slot) {
+	case 1:
+		return 14;
+	case 2:
+		return 13;
+	case 3:
+		return 12;
+	default:
+		return dev->irq;
+	}
+}
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+	return 0;
+}
+
+static void adm8668_pci_fixup(struct pci_dev *dev)
+{
+	if (dev->devfn != 0)
+		return;
+
+	pr_info("PCI: fixing up ADM8668 controller\n");
+
+	/* setup COMMAND register */
+	pci_write_config_word(dev, PCI_COMMAND,
+		(PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
+
+	/* setup CACHE_LINE_SIZE register */
+	pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4);
+
+	/* setup BARS */
+	pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0);
+	pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0);
+}
+DECLARE_PCI_FIXUP_HEADER(0x1317, 0x8688, adm8668_pci_fixup);
+
+static int __init adm8668_pci_init(void)
+{
+	void __iomem *io_map_base;
+
+	ioport_resource.start   = ADMPCI_IO_BASE;
+	ioport_resource.end     = ADMPCI_IO_BASE + ADMPCI_IO_SIZE;
+
+	io_map_base = ioremap(ADMPCI_IO_BASE, ADMPCI_IO_SIZE);
+	if (!io_map_base)
+		printk("io_map_base didn't work.\n");
+
+	adm8668_pci_controller.io_map_base = (unsigned long)io_map_base;
+	register_pci_controller(&adm8668_pci_controller);
+
+	return 0;
+}
+arch_initcall(adm8668_pci_init);
diff --git a/target/linux/adm8668/files-3.18/drivers/mtd/maps/adm8668.c b/target/linux/adm8668/files-3.18/drivers/mtd/maps/adm8668.c
new file mode 100644
index 0000000..8737159
--- /dev/null
+++ b/target/linux/adm8668/files-3.18/drivers/mtd/maps/adm8668.c
@@ -0,0 +1,334 @@
+/*
+ *  Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
+ *  Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ *  Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
+ *  Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
+ *
+ *  original functions for finding root filesystem from Mike Baker
+ *
+ *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  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.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ *
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * Flash mapping for adm8668 boards
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/slab.h>
+#include <linux/mtd/partitions.h>
+#include <linux/crc32.h>
+#include <linux/magic.h>
+#include <asm/io.h>
+
+#define WINDOW_ADDR	0x10000000
+#define WINDOW_SIZE	0x800000
+#define BANKWIDTH	2
+
+/* first a little bit about the headers i need.. */
+
+/* just interested in part of the full struct */
+struct squashfs_super_block {
+        __le32  s_magic;
+        __le32  pad0[9];        /* it's not really padding */
+        __le64  bytes_used;
+};
+
+#define IH_MAGIC	0x56190527	/* Image Magic Number		*/
+struct uboot_header {
+	uint32_t	ih_magic;	/* Image Header Magic Number	*/
+	uint32_t	ih_hcrc;	/* Image Header CRC Checksum	*/
+	uint32_t	ih_time;	/* Image Creation Timestamp	*/
+	uint32_t	ih_size;	/* Image Data Size		*/
+	uint32_t	ih_load;	/* Data	 Load  Address		*/
+	uint32_t	ih_ep;		/* Entry Point Address		*/
+	uint32_t	ih_dcrc;	/* Image Data CRC Checksum	*/
+	uint8_t		ih_os;		/* Operating System		*/
+	uint8_t		ih_arch;	/* CPU architecture		*/
+	uint8_t		ih_type;	/* Image Type			*/
+	uint8_t		ih_comp;	/* Compression Type		*/
+	char		ih_name[32];	/* image name */
+};
+
+/************************************************/
+
+static struct mtd_info *adm8668_mtd;
+
+struct map_info adm8668_map = {
+	name: "adm8668-nor",
+	size: WINDOW_SIZE,
+	phys: WINDOW_ADDR,
+	bankwidth: BANKWIDTH,
+};
+
+/*
+ * Copied from mtdblock.c
+ *
+ * Cache stuff...
+ *
+ * Since typical flash erasable sectors are much larger than what Linux's
+ * buffer cache can handle, we must implement read-modify-write on flash
+ * sectors for each block write requests.  To avoid over-erasing flash sectors
+ * and to speed things up, we locally cache a whole flash sector while it is
+ * being written to until a different sector is required.
+ */
+
+static void erase_callback(struct erase_info *done)
+{
+	wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
+	wake_up(wait_q);
+}
+
+static int erase_write (struct mtd_info *mtd, unsigned long pos,
+			int len, const char *buf)
+{
+	struct erase_info erase;
+	DECLARE_WAITQUEUE(wait, current);
+	wait_queue_head_t wait_q;
+	size_t retlen;
+	int ret;
+
+	/*
+	 * First, let's erase the flash block.
+	 */
+
+	init_waitqueue_head(&wait_q);
+	erase.mtd = mtd;
+	erase.callback = erase_callback;
+	erase.addr = pos;
+	erase.len = len;
+	erase.priv = (u_long)&wait_q;
+
+	set_current_state(TASK_INTERRUPTIBLE);
+	add_wait_queue(&wait_q, &wait);
+
+	ret = mtd->_erase(mtd, &erase);
+	if (ret) {
+		set_current_state(TASK_RUNNING);
+		remove_wait_queue(&wait_q, &wait);
+		printk (KERN_WARNING "erase of region [0x%lx, 0x%x] "
+				     "on \"%s\" failed\n",
+			pos, len, mtd->name);
+		return ret;
+	}
+
+	schedule();  /* Wait for erase to finish. */
+	remove_wait_queue(&wait_q, &wait);
+
+	/*
+	 * Next, write data to flash.
+	 */
+
+	ret = mtd->_write (mtd, pos, len, &retlen, buf);
+	if (ret)
+		return ret;
+	if (retlen != len)
+		return -EIO;
+	return 0;
+}
+
+/* decent defaults in case... shrug */
+static struct mtd_partition adm8668_parts[] = {
+	{ name: "linux",	offset: 0x40000,	size: WINDOW_SIZE-0x40000, },
+	{ name: "rootfs",	offset: 0xe0000,	size: 0x140000, },
+	{ name: "uboot_env",	offset: 0x20000,	size: 0x20000, },
+	{ name: NULL, },
+};
+
+/* in case i wanna change stuff later, and to clarify the math section... */
+#define	PART_LINUX	0
+#define	PART_ROOTFS	1
+#define	NR_PARTS	3
+
+static int __init
+init_mtd_partitions(struct mtd_info *mtd, size_t size)
+{
+	struct uboot_header uhdr;
+	int off, blocksize;
+	size_t len, linux_len;
+	struct squashfs_super_block shdr;
+
+	blocksize = mtd->erasesize;
+	if (blocksize < 0x10000)
+		blocksize = 0x10000;
+
+	/* now find squashfs */
+	memset(&shdr, 0xe5, sizeof(shdr));
+	for (off = adm8668_parts[PART_LINUX].offset; off < size; off += blocksize) {
+		/*
+		 * Read into buffer
+		 */
+		if (mtd->_read(mtd, off, sizeof(shdr), &len, (char *)&shdr) ||
+		    len != sizeof(shdr))
+			continue;
+
+		if (shdr.s_magic == SQUASHFS_MAGIC) {
+			uint32_t fs_size = (uint32_t)shdr.bytes_used;
+
+			printk(KERN_INFO "%s: Filesystem type: squashfs, size=%dkB\n",
+				mtd->name, fs_size>>10);
+
+			/* Update rootfs based on the superblock info, and
+			 * stretch to end of MTD. rootfs_split will split it */
+			adm8668_parts[PART_ROOTFS].offset = off;
+			adm8668_parts[PART_ROOTFS].size = mtd->size -
+				adm8668_parts[PART_ROOTFS].offset;
+
+			/* kernel ends where rootfs starts
+			 * but we'll keep it full-length for upgrades */
+			linux_len = adm8668_parts[PART_LINUX+1].offset -
+				adm8668_parts[PART_LINUX].offset;
+#if 1
+			adm8668_parts[PART_LINUX].size = mtd->size -
+				adm8668_parts[PART_LINUX].offset;
+#else
+			adm8668_parts[PART_LINUX].size = linux_len;
+#endif
+			goto found;
+		}
+	}
+
+	printk(KERN_NOTICE
+	       "%s: Couldn't find root filesystem\n",
+	       mtd->name);
+	return NR_PARTS;
+
+ found:
+	if (mtd->_read(mtd, adm8668_parts[PART_LINUX].offset, sizeof(uhdr), &len, (char *)&uhdr) ||
+	    len != sizeof(uhdr))
+		return NR_PARTS;
+
+	/* that's odd. how'd ya boot it then */
+	if (uhdr.ih_magic != IH_MAGIC)
+		return NR_PARTS;
+
+	if (be32_to_cpu(uhdr.ih_size) != (linux_len - sizeof(uhdr))) {
+		unsigned char *block, *data;
+		unsigned int offset;
+
+		offset = adm8668_parts[PART_LINUX].offset +
+			 sizeof(struct uboot_header);
+		data = (unsigned char *)(WINDOW_ADDR | 0xA0000000 | offset);
+
+		printk(KERN_NOTICE "Updating U-boot image:\n");
+		printk(KERN_NOTICE "  old: [size: %8d crc32: 0x%08x]\n",
+			be32_to_cpu(uhdr.ih_size), be32_to_cpu(uhdr.ih_dcrc));
+
+		/* Update the data length & crc32 */
+		uhdr.ih_size = cpu_to_be32(linux_len - sizeof(uhdr));
+		uhdr.ih_dcrc = crc32_le(~0, data, linux_len - sizeof(uhdr)) ^ (~0);
+		uhdr.ih_dcrc = cpu_to_be32(uhdr.ih_dcrc);
+
+		printk(KERN_NOTICE "  new: [size: %8d crc32: 0x%08x]\n",
+			be32_to_cpu(uhdr.ih_size), be32_to_cpu(uhdr.ih_dcrc));
+
+		/* update header's crc... */
+		uhdr.ih_hcrc = 0;
+		uhdr.ih_hcrc = crc32_le(~0, (unsigned char *)&uhdr,
+				sizeof(uhdr)) ^ (~0);
+		uhdr.ih_hcrc = cpu_to_be32(uhdr.ih_hcrc);
+
+		/* read first eraseblock from the image */
+		block = kmalloc(mtd->erasesize, GFP_KERNEL);
+		if (mtd->_read(mtd, adm8668_parts[PART_LINUX].offset, mtd->erasesize, &len, block) || len != mtd->erasesize) {
+			printk("Error copying first eraseblock\n");
+			return 0;
+		}
+
+		/* Write updated header to the flash */
+		memcpy(block, &uhdr, sizeof(uhdr));
+		if (mtd->_unlock)
+			mtd->_unlock(mtd, off, mtd->erasesize);
+		erase_write(mtd, adm8668_parts[PART_LINUX].offset, mtd->erasesize, block);
+		if (mtd->_sync)
+			mtd->_sync(mtd);
+		kfree(block);
+		printk(KERN_NOTICE "Done\n");
+	}
+
+	return NR_PARTS;
+}
+
+int __init init_adm8668_map(void)
+{
+	int nr_parts, ret;
+
+	adm8668_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
+
+	if (!adm8668_map.virt) {
+		printk(KERN_ERR "Failed to ioremap\n");
+		return -EIO;
+	}
+
+	simple_map_init(&adm8668_map);
+	if (!(adm8668_mtd = do_map_probe("cfi_probe", &adm8668_map))) {
+		printk(KERN_ERR "cfi_probe failed\n");
+		iounmap((void *)adm8668_map.virt);
+		return -ENXIO;
+	}
+
+	adm8668_mtd->owner = THIS_MODULE;
+
+	nr_parts = init_mtd_partitions(adm8668_mtd, adm8668_mtd->size);
+	ret = mtd_device_register(adm8668_mtd, adm8668_parts, nr_parts);
+	if (ret) {
+		printk(KERN_ERR "Flash: mtd_device_register failed\n");
+		goto fail;
+	}
+
+	return 0;
+
+ fail:
+	if (adm8668_mtd)
+		map_destroy(adm8668_mtd);
+	if (adm8668_map.virt)
+		iounmap((void *) adm8668_map.virt);
+	adm8668_map.virt = 0;
+	return ret;
+}
+
+void __exit cleanup_adm8668_map(void)
+{
+	mtd_device_unregister(adm8668_mtd);
+	map_destroy(adm8668_mtd);
+	iounmap((void *) adm8668_map.virt);
+	adm8668_map.virt = 0;
+}
+
+module_init(init_adm8668_map);
+module_exit(cleanup_adm8668_map);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Scott Nicholas <neutronscott@scottn.us>");
+MODULE_DESCRIPTION("MTD map driver for ADM8668 NOR Flash");