20 files changed, 942 insertions, 374 deletions

diff --git a/arch/arm/mach-ep93xx/Kconfig b/arch/arm/mach-ep93xx/Kconfig
index 9167c3d2a5e..3a08b18f643 100644
--- a/arch/arm/mach-ep93xx/Kconfig
+++ b/arch/arm/mach-ep93xx/Kconfig
@@ -161,6 +161,20 @@ config MACH_MICRO9S
 	  Say 'Y' here if you want your kernel to support the
 	  Contec Micro9-Slim board.
 
+config MACH_SIM_ONE
+        bool "Support Simplemachines Sim.One board"
+        depends on EP93XX_SDCE0_PHYS_OFFSET
+        help
+          Say 'Y' here if you want your kernel to support the
+          Simplemachines Sim.One board.
+
+config MACH_SNAPPER_CL15
+	bool "Support Bluewater Systems Snapper CL15 Module"
+	depends on EP93XX_SDCE0_PHYS_OFFSET
+	help
+	  Say 'Y' here if you want your kernel to support the Bluewater
+	  Systems Snapper CL15 Module.
+
 config MACH_TS72XX
 	bool "Support Technologic Systems TS-72xx SBC"
 	depends on EP93XX_SDCE3_SYNC_PHYS_OFFSET
diff --git a/arch/arm/mach-ep93xx/Makefile b/arch/arm/mach-ep93xx/Makefile
index eae6199a989..33ee2c863d1 100644
--- a/arch/arm/mach-ep93xx/Makefile
+++ b/arch/arm/mach-ep93xx/Makefile
@@ -10,4 +10,6 @@ obj-$(CONFIG_MACH_ADSSPHERE)	+= adssphere.o
 obj-$(CONFIG_MACH_EDB93XX)	+= edb93xx.o
 obj-$(CONFIG_MACH_GESBC9312)	+= gesbc9312.o
 obj-$(CONFIG_MACH_MICRO9)	+= micro9.o
+obj-$(CONFIG_MACH_SIM_ONE)	+= simone.o
+obj-$(CONFIG_MACH_SNAPPER_CL15)	+= snappercl15.o
 obj-$(CONFIG_MACH_TS72XX)	+= ts72xx.o
diff --git a/arch/arm/mach-ep93xx/adssphere.c b/arch/arm/mach-ep93xx/adssphere.c
index caf6d5154ae..3a1a855bfdc 100644
--- a/arch/arm/mach-ep93xx/adssphere.c
+++ b/arch/arm/mach-ep93xx/adssphere.c
@@ -41,7 +41,7 @@ static struct platform_device adssphere_flash = {
 	.resource	= &adssphere_flash_resource,
 };
 
-static struct ep93xx_eth_data adssphere_eth_data = {
+static struct ep93xx_eth_data __initdata adssphere_eth_data = {
 	.phy_id		= 1,
 };
 
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 1d0f9d8aff2..e29bdef9b2e 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -10,6 +10,8 @@
  * your option) any later version.
  */
 
+#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/clk.h>
 #include <linux/err.h>
@@ -94,6 +96,10 @@ static struct clk clk_keypad = {
 	.enable_mask	= EP93XX_SYSCON_KEYTCHCLKDIV_KEN,
 	.set_rate	= set_keytchclk_rate,
 };
+static struct clk clk_spi = {
+	.parent		= &clk_xtali,
+	.rate		= EP93XX_EXT_CLK_RATE,
+};
 static struct clk clk_pwm = {
 	.parent		= &clk_xtali,
 	.rate		= EP93XX_EXT_CLK_RATE,
@@ -184,6 +190,7 @@ static struct clk_lookup clocks[] = {
 	INIT_CK("ep93xx-ohci",		NULL,		&clk_usb_host),
 	INIT_CK("ep93xx-keypad",	NULL,		&clk_keypad),
 	INIT_CK("ep93xx-fb",		NULL,		&clk_video),
+	INIT_CK("ep93xx-spi.0",		NULL,		&clk_spi),
 	INIT_CK(NULL,			"pwm_clk",	&clk_pwm),
 	INIT_CK(NULL,			"m2p0",		&clk_m2p0),
 	INIT_CK(NULL,			"m2p1",		&clk_m2p1),
@@ -445,37 +452,47 @@ static void __init ep93xx_dma_clock_init(void)
 static int __init ep93xx_clock_init(void)
 {
 	u32 value;
-	int i;
 
-	value = __raw_readl(EP93XX_SYSCON_CLOCK_SET1);
-	if (!(value & 0x00800000)) {			/* PLL1 bypassed?  */
+	/* Determine the bootloader configured pll1 rate */
+	value = __raw_readl(EP93XX_SYSCON_CLKSET1);
+	if (!(value & EP93XX_SYSCON_CLKSET1_NBYP1))
 		clk_pll1.rate = clk_xtali.rate;
-	} else {
+	else
 		clk_pll1.rate = calc_pll_rate(value);
-	}
+
+	/* Initialize the pll1 derived clocks */
 	clk_f.rate = clk_pll1.rate / fclk_divisors[(value >> 25) & 0x7];
 	clk_h.rate = clk_pll1.rate / hclk_divisors[(value >> 20) & 0x7];
 	clk_p.rate = clk_h.rate / pclk_divisors[(value >> 18) & 0x3];
 	ep93xx_dma_clock_init();
 
-	value = __raw_readl(EP93XX_SYSCON_CLOCK_SET2);
-	if (!(value & 0x00080000)) {			/* PLL2 bypassed?  */
+	/* Determine the bootloader configured pll2 rate */
+	value = __raw_readl(EP93XX_SYSCON_CLKSET2);
+	if (!(value & EP93XX_SYSCON_CLKSET2_NBYP2))
 		clk_pll2.rate = clk_xtali.rate;
-	} else if (value & 0x00040000) {		/* PLL2 enabled?  */
+	else if (value & EP93XX_SYSCON_CLKSET2_PLL2_EN)
 		clk_pll2.rate = calc_pll_rate(value);
-	} else {
+	else
 		clk_pll2.rate = 0;
-	}
+
+	/* Initialize the pll2 derived clocks */
 	clk_usb_host.rate = clk_pll2.rate / (((value >> 28) & 0xf) + 1);
 
-	printk(KERN_INFO "ep93xx: PLL1 running at %ld MHz, PLL2 at %ld MHz\n",
+	/*
+	 * EP93xx SSP clock rate was doubled in version E2. For more information
+	 * see:
+	 *     http://www.cirrus.com/en/pubs/appNote/AN273REV4.pdf
+	 */
+	if (ep93xx_chip_revision() < EP93XX_CHIP_REV_E2)
+		clk_spi.rate /= 2;
+
+	pr_info("PLL1 running at %ld MHz, PLL2 at %ld MHz\n",
 		clk_pll1.rate / 1000000, clk_pll2.rate / 1000000);
-	printk(KERN_INFO "ep93xx: FCLK %ld MHz, HCLK %ld MHz, PCLK %ld MHz\n",
+	pr_info("FCLK %ld MHz, HCLK %ld MHz, PCLK %ld MHz\n",
 		clk_f.rate / 1000000, clk_h.rate / 1000000,
 		clk_p.rate / 1000000);
 
-	for (i = 0; i < ARRAY_SIZE(clocks); i++)
-		clkdev_add(&clocks[i]);
+	clkdev_add_table(clocks, ARRAY_SIZE(clocks));
 	return 0;
 }
 arch_initcall(ep93xx_clock_init);
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 1f0d66561bb..9092677f63e 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -14,12 +14,15 @@
  * your option) any later version.
  */
 
+#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
 #include <linux/timex.h>
+#include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
@@ -28,14 +31,15 @@
 #include <linux/amba/serial.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
+#include <linux/spi/spi.h>
 
 #include <mach/hardware.h>
 #include <mach/fb.h>
 #include <mach/ep93xx_keypad.h>
+#include <mach/ep93xx_spi.h>
 
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
-#include <asm/mach/irq.h>
 
 #include <asm/hardware/vic.h>
 
@@ -82,13 +86,40 @@ void __init ep93xx_map_io(void)
  * to use this timer for something else.  We also use timer 4 for keeping
  * track of lost jiffies.
  */
-static unsigned int last_jiffy_time;
-
+#define EP93XX_TIMER_REG(x)		(EP93XX_TIMER_BASE + (x))
+#define EP93XX_TIMER1_LOAD		EP93XX_TIMER_REG(0x00)
+#define EP93XX_TIMER1_VALUE		EP93XX_TIMER_REG(0x04)
+#define EP93XX_TIMER1_CONTROL		EP93XX_TIMER_REG(0x08)
+#define EP93XX_TIMER123_CONTROL_ENABLE	(1 << 7)
+#define EP93XX_TIMER123_CONTROL_MODE	(1 << 6)
+#define EP93XX_TIMER123_CONTROL_CLKSEL	(1 << 3)
+#define EP93XX_TIMER1_CLEAR		EP93XX_TIMER_REG(0x0c)
+#define EP93XX_TIMER2_LOAD		EP93XX_TIMER_REG(0x20)
+#define EP93XX_TIMER2_VALUE		EP93XX_TIMER_REG(0x24)
+#define EP93XX_TIMER2_CONTROL		EP93XX_TIMER_REG(0x28)
+#define EP93XX_TIMER2_CLEAR		EP93XX_TIMER_REG(0x2c)
+#define EP93XX_TIMER4_VALUE_LOW		EP93XX_TIMER_REG(0x60)
+#define EP93XX_TIMER4_VALUE_HIGH	EP93XX_TIMER_REG(0x64)
+#define EP93XX_TIMER4_VALUE_HIGH_ENABLE	(1 << 8)
+#define EP93XX_TIMER3_LOAD		EP93XX_TIMER_REG(0x80)
+#define EP93XX_TIMER3_VALUE		EP93XX_TIMER_REG(0x84)
+#define EP93XX_TIMER3_CONTROL		EP93XX_TIMER_REG(0x88)
+#define EP93XX_TIMER3_CLEAR		EP93XX_TIMER_REG(0x8c)
+
+#define EP93XX_TIMER123_CLOCK		508469
+#define EP93XX_TIMER4_CLOCK		983040
+
+#define TIMER1_RELOAD			((EP93XX_TIMER123_CLOCK / HZ) - 1)
 #define TIMER4_TICKS_PER_JIFFY		DIV_ROUND_CLOSEST(CLOCK_TICK_RATE, HZ)
 
+static unsigned int last_jiffy_time;
+
 static irqreturn_t ep93xx_timer_interrupt(int irq, void *dev_id)
 {
+	/* Writing any value clears the timer interrupt */
 	__raw_writel(1, EP93XX_TIMER1_CLEAR);
+
+	/* Recover lost jiffies */
 	while ((signed long)
 		(__raw_readl(EP93XX_TIMER4_VALUE_LOW) - last_jiffy_time)
 						>= TIMER4_TICKS_PER_JIFFY) {
@@ -107,13 +138,18 @@ static struct irqaction ep93xx_timer_irq = {
 
 static void __init ep93xx_timer_init(void)
 {
+	u32 tmode = EP93XX_TIMER123_CONTROL_MODE |
+		    EP93XX_TIMER123_CONTROL_CLKSEL;
+
 	/* Enable periodic HZ timer.  */
-	__raw_writel(0x48, EP93XX_TIMER1_CONTROL);
-	__raw_writel((508469 / HZ) - 1, EP93XX_TIMER1_LOAD);
-	__raw_writel(0xc8, EP93XX_TIMER1_CONTROL);
+	__raw_writel(tmode, EP93XX_TIMER1_CONTROL);
+	__raw_writel(TIMER1_RELOAD, EP93XX_TIMER1_LOAD);
+	__raw_writel(tmode | EP93XX_TIMER123_CONTROL_ENABLE,
+			EP93XX_TIMER1_CONTROL);
 
 	/* Enable lost jiffy timer.  */
-	__raw_writel(0x100, EP93XX_TIMER4_VALUE_HIGH);
+	__raw_writel(EP93XX_TIMER4_VALUE_HIGH_ENABLE,
+			EP93XX_TIMER4_VALUE_HIGH);
 
 	setup_irq(IRQ_EP93XX_TIMER1, &ep93xx_timer_irq);
 }
@@ -135,237 +171,16 @@ struct sys_timer ep93xx_timer = {
 
 
 /*************************************************************************
- * GPIO handling for EP93xx
- *************************************************************************/
-static unsigned char gpio_int_unmasked[3];
-static unsigned char gpio_int_enabled[3];
-static unsigned char gpio_int_type1[3];
-static unsigned char gpio_int_type2[3];
-static unsigned char gpio_int_debounce[3];
-
-/* Port ordering is: A B F */
-static const u8 int_type1_register_offset[3]	= { 0x90, 0xac, 0x4c };
-static const u8 int_type2_register_offset[3]	= { 0x94, 0xb0, 0x50 };
-static const u8 eoi_register_offset[3]		= { 0x98, 0xb4, 0x54 };
-static const u8 int_en_register_offset[3]	= { 0x9c, 0xb8, 0x58 };
-static const u8 int_debounce_register_offset[3]	= { 0xa8, 0xc4, 0x64 };
-
-void ep93xx_gpio_update_int_params(unsigned port)
-{
-	BUG_ON(port > 2);
-
-	__raw_writeb(0, EP93XX_GPIO_REG(int_en_register_offset[port]));
-
-	__raw_writeb(gpio_int_type2[port],
-		EP93XX_GPIO_REG(int_type2_register_offset[port]));
-
-	__raw_writeb(gpio_int_type1[port],
-		EP93XX_GPIO_REG(int_type1_register_offset[port]));
-
-	__raw_writeb(gpio_int_unmasked[port] & gpio_int_enabled[port],
-		EP93XX_GPIO_REG(int_en_register_offset[port]));
-}
-
-void ep93xx_gpio_int_mask(unsigned line)
-{
-	gpio_int_unmasked[line >> 3] &= ~(1 << (line & 7));
-}
-
-void ep93xx_gpio_int_debounce(unsigned int irq, int enable)
-{
-	int line = irq_to_gpio(irq);
-	int port = line >> 3;
-	int port_mask = 1 << (line & 7);
-
-	if (enable)
-		gpio_int_debounce[port] |= port_mask;
-	else
-		gpio_int_debounce[port] &= ~port_mask;
-
-	__raw_writeb(gpio_int_debounce[port],
-		EP93XX_GPIO_REG(int_debounce_register_offset[port]));
-}
-EXPORT_SYMBOL(ep93xx_gpio_int_debounce);
-
-/*************************************************************************
  * EP93xx IRQ handling
  *************************************************************************/
-static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
-{
-	unsigned char status;
-	int i;
-
-	status = __raw_readb(EP93XX_GPIO_A_INT_STATUS);
-	for (i = 0; i < 8; i++) {
-		if (status & (1 << i)) {
-			int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_A(0)) + i;
-			generic_handle_irq(gpio_irq);
-		}
-	}
-
-	status = __raw_readb(EP93XX_GPIO_B_INT_STATUS);
-	for (i = 0; i < 8; i++) {
-		if (status & (1 << i)) {
-			int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_B(0)) + i;
-			generic_handle_irq(gpio_irq);
-		}
-	}
-}
-
-static void ep93xx_gpio_f_irq_handler(unsigned int irq, struct irq_desc *desc)
-{
-	/*
-	 * map discontiguous hw irq range to continous sw irq range:
-	 *
-	 *  IRQ_EP93XX_GPIO{0..7}MUX -> gpio_to_irq(EP93XX_GPIO_LINE_F({0..7})
-	 */
-	int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */
-	int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_F(0)) + port_f_idx;
-
-	generic_handle_irq(gpio_irq);
-}
-
-static void ep93xx_gpio_irq_ack(unsigned int irq)
-{
-	int line = irq_to_gpio(irq);
-	int port = line >> 3;
-	int port_mask = 1 << (line & 7);
-
-	if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
-		gpio_int_type2[port] ^= port_mask; /* switch edge direction */
-		ep93xx_gpio_update_int_params(port);
-	}
-
-	__raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
-}
-
-static void ep93xx_gpio_irq_mask_ack(unsigned int irq)
-{
-	int line = irq_to_gpio(irq);
-	int port = line >> 3;
-	int port_mask = 1 << (line & 7);
-
-	if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
-		gpio_int_type2[port] ^= port_mask; /* switch edge direction */
-
-	gpio_int_unmasked[port] &= ~port_mask;
-	ep93xx_gpio_update_int_params(port);
-
-	__raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
-}
-
-static void ep93xx_gpio_irq_mask(unsigned int irq)
-{
-	int line = irq_to_gpio(irq);
-	int port = line >> 3;
-
-	gpio_int_unmasked[port] &= ~(1 << (line & 7));
-	ep93xx_gpio_update_int_params(port);
-}
-
-static void ep93xx_gpio_irq_unmask(unsigned int irq)
-{
-	int line = irq_to_gpio(irq);
-	int port = line >> 3;
-
-	gpio_int_unmasked[port] |= 1 << (line & 7);
-	ep93xx_gpio_update_int_params(port);
-}
-
-
-/*
- * gpio_int_type1 controls whether the interrupt is level (0) or
- * edge (1) triggered, while gpio_int_type2 controls whether it
- * triggers on low/falling (0) or high/rising (1).
- */
-static int ep93xx_gpio_irq_type(unsigned int irq, unsigned int type)
-{
-	struct irq_desc *desc = irq_desc + irq;
-	const int gpio = irq_to_gpio(irq);
-	const int port = gpio >> 3;
-	const int port_mask = 1 << (gpio & 7);
-
-	gpio_direction_input(gpio);
-
-	switch (type) {
-	case IRQ_TYPE_EDGE_RISING:
-		gpio_int_type1[port] |= port_mask;
-		gpio_int_type2[port] |= port_mask;
-		desc->handle_irq = handle_edge_irq;
-		break;
-	case IRQ_TYPE_EDGE_FALLING:
-		gpio_int_type1[port] |= port_mask;
-		gpio_int_type2[port] &= ~port_mask;
-		desc->handle_irq = handle_edge_irq;
-		break;
-	case IRQ_TYPE_LEVEL_HIGH:
-		gpio_int_type1[port] &= ~port_mask;
-		gpio_int_type2[port] |= port_mask;
-		desc->handle_irq = handle_level_irq;
-		break;
-	case IRQ_TYPE_LEVEL_LOW:
-		gpio_int_type1[port] &= ~port_mask;
-		gpio_int_type2[port] &= ~port_mask;
-		desc->handle_irq = handle_level_irq;
-		break;
-	case IRQ_TYPE_EDGE_BOTH:
-		gpio_int_type1[port] |= port_mask;
-		/* set initial polarity based on current input level */
-		if (gpio_get_value(gpio))
-			gpio_int_type2[port] &= ~port_mask; /* falling */
-		else
-			gpio_int_type2[port] |= port_mask; /* rising */
-		desc->handle_irq = handle_edge_irq;
-		break;
-	default:
-		pr_err("ep93xx: failed to set irq type %d for gpio %d\n",
-		       type, gpio);
-		return -EINVAL;
-	}
-
-	gpio_int_enabled[port] |= port_mask;
-
-	desc->status &= ~IRQ_TYPE_SENSE_MASK;
-	desc->status |= type & IRQ_TYPE_SENSE_MASK;
-
-	ep93xx_gpio_update_int_params(port);
-
-	return 0;
-}
-
-static struct irq_chip ep93xx_gpio_irq_chip = {
-	.name		= "GPIO",
-	.ack		= ep93xx_gpio_irq_ack,
-	.mask_ack	= ep93xx_gpio_irq_mask_ack,
-	.mask		= ep93xx_gpio_irq_mask,
-	.unmask		= ep93xx_gpio_irq_unmask,
-	.set_type	= ep93xx_gpio_irq_type,
-};
-
+extern void ep93xx_gpio_init_irq(void);
 
 void __init ep93xx_init_irq(void)
 {
-	int gpio_irq;
-
 	vic_init(EP93XX_VIC1_BASE, 0, EP93XX_VIC1_VALID_IRQ_MASK, 0);
 	vic_init(EP93XX_VIC2_BASE, 32, EP93XX_VIC2_VALID_IRQ_MASK, 0);
 
-	for (gpio_irq = gpio_to_irq(0);
-	     gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) {
-		set_irq_chip(gpio_irq, &ep93xx_gpio_irq_chip);
-		set_irq_handler(gpio_irq, handle_level_irq);
-		set_irq_flags(gpio_irq, IRQF_VALID);
-	}
-
-	set_irq_chained_handler(IRQ_EP93XX_GPIO_AB, ep93xx_gpio_ab_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO0MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO1MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO2MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO3MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO4MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO5MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO6MUX, ep93xx_gpio_f_irq_handler);
-	set_irq_chained_handler(IRQ_EP93XX_GPIO7MUX, ep93xx_gpio_f_irq_handler);
+	ep93xx_gpio_init_irq();
 }
 
 
@@ -409,6 +224,20 @@ void ep93xx_devcfg_set_clear(unsigned int set_bits, unsigned int clear_bits)
 }
 EXPORT_SYMBOL(ep93xx_devcfg_set_clear);
 
+/**
+ * ep93xx_chip_revision() - returns the EP93xx chip revision
+ *
+ * See <mach/platform.h> for more information.
+ */
+unsigned int ep93xx_chip_revision(void)
+{
+	unsigned int v;
+
+	v = __raw_readl(EP93XX_SYSCON_SYSCFG);
+	v &= EP93XX_SYSCON_SYSCFG_REV_MASK;
+	v >>= EP93XX_SYSCON_SYSCFG_REV_SHIFT;
+	return v;
+}
 
 /*************************************************************************
  * EP93xx peripheral handling
@@ -517,6 +346,10 @@ static struct platform_device ep93xx_ohci_device = {
 	.resource	= ep93xx_ohci_resources,
 };
 
+
+/*************************************************************************
+ * EP93xx ethernet peripheral handling
+ *************************************************************************/
 static struct ep93xx_eth_data ep93xx_eth_data;
 
 static struct resource ep93xx_eth_resource[] = {
@@ -541,6 +374,12 @@ static struct platform_device ep93xx_eth_device = {
 	.resource	= ep93xx_eth_resource,
 };
 
+/**
+ * ep93xx_register_eth - Register the built-in ethernet platform device.
+ * @data:	platform specific ethernet configuration (__initdata)
+ * @copy_addr:	flag indicating that the MAC address should be copied
+ *		from the IndAd registers (as programmed by the bootloader)
+ */
 void __init ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr)
 {
 	if (copy_addr)
@@ -557,11 +396,19 @@ void __init ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr)
 static struct i2c_gpio_platform_data ep93xx_i2c_data;
 
 static struct platform_device ep93xx_i2c_device = {
-	.name			= "i2c-gpio",
-	.id			= 0,
-	.dev.platform_data	= &ep93xx_i2c_data,
+	.name		= "i2c-gpio",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &ep93xx_i2c_data,
+	},
 };
 
+/**
+ * ep93xx_register_i2c - Register the i2c platform device.
+ * @data:	platform specific i2c-gpio configuration (__initdata)
+ * @devices:	platform specific i2c bus device information (__initdata)
+ * @num:	the number of devices on the i2c bus
+ */
 void __init ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
 				struct i2c_board_info *devices, int num)
 {
@@ -572,9 +419,9 @@ void __init ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
 	 * CMOS driver.
 	 */
 	if (data->sda_is_open_drain && data->sda_pin != EP93XX_GPIO_LINE_EEDAT)
-		pr_warning("ep93xx: sda != EEDAT, open drain has no effect\n");
+		pr_warning("sda != EEDAT, open drain has no effect\n");
 	if (data->scl_is_open_drain && data->scl_pin != EP93XX_GPIO_LINE_EECLK)
-		pr_warning("ep93xx: scl != EECLK, open drain has no effect\n");
+		pr_warning("scl != EECLK, open drain has no effect\n");
 
 	__raw_writel((data->sda_is_open_drain << 1) |
 		     (data->scl_is_open_drain << 0),
@@ -585,17 +432,67 @@ void __init ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
 	platform_device_register(&ep93xx_i2c_device);
 }
 
+/*************************************************************************
+ * EP93xx SPI peripheral handling
+ *************************************************************************/
+static struct ep93xx_spi_info ep93xx_spi_master_data;
+
+static struct resource ep93xx_spi_resources[] = {
+	{
+		.start	= EP93XX_SPI_PHYS_BASE,
+		.end	= EP93XX_SPI_PHYS_BASE + 0x18 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_EP93XX_SSP,
+		.end	= IRQ_EP93XX_SSP,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device ep93xx_spi_device = {
+	.name		= "ep93xx-spi",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &ep93xx_spi_master_data,
+	},
+	.num_resources	= ARRAY_SIZE(ep93xx_spi_resources),
+	.resource	= ep93xx_spi_resources,
+};
+
+/**
+ * ep93xx_register_spi() - registers spi platform device
+ * @info: ep93xx board specific spi master info (__initdata)
+ * @devices: SPI devices to register (__initdata)
+ * @num: number of SPI devices to register
+ *
+ * This function registers platform device for the EP93xx SPI controller and
+ * also makes sure that SPI pins are muxed so that I2S is not using those pins.
+ */
+void __init ep93xx_register_spi(struct ep93xx_spi_info *info,
+				struct spi_board_info *devices, int num)
+{
+	/*
+	 * When SPI is used, we need to make sure that I2S is muxed off from
+	 * SPI pins.
+	 */
+	ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2SONSSP);
+
+	ep93xx_spi_master_data = *info;
+	spi_register_board_info(devices, num);
+	platform_device_register(&ep93xx_spi_device);
+}
 
 /*************************************************************************
  * EP93xx LEDs
  *************************************************************************/
 static struct gpio_led ep93xx_led_pins[] = {
 	{
-		.name			= "platform:grled",
-		.gpio			= EP93XX_GPIO_LINE_GRLED,
+		.name	= "platform:grled",
+		.gpio	= EP93XX_GPIO_LINE_GRLED,
 	}, {
-		.name			= "platform:rdled",
-		.gpio			= EP93XX_GPIO_LINE_RDLED,
+		.name	= "platform:rdled",
+		.gpio	= EP93XX_GPIO_LINE_RDLED,
 	},
 };
 
@@ -715,7 +612,7 @@ static struct platform_device ep93xx_fb_device = {
 	.name			= "ep93xx-fb",
 	.id			= -1,
 	.dev			= {
-		.platform_data	= &ep93xxfb_data,
+		.platform_data		= &ep93xxfb_data,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.dma_mask		= &ep93xx_fb_device.dev.coherent_dma_mask,
 	},
@@ -723,6 +620,10 @@ static struct platform_device ep93xx_fb_device = {
 	.resource		= ep93xx_fb_resource,
 };
 
+/**
+ * ep93xx_register_fb - Register the framebuffer platform device.
+ * @data:	platform specific framebuffer configuration (__initdata)
+ */
 void __init ep93xx_register_fb(struct ep93xxfb_mach_info *data)
 {
 	ep93xxfb_data = *data;
@@ -733,6 +634,8 @@ void __init ep93xx_register_fb(struct ep93xxfb_mach_info *data)
 /*************************************************************************
  * EP93xx matrix keypad peripheral handling
  *************************************************************************/
+static struct ep93xx_keypad_platform_data ep93xx_keypad_data;
+
 static struct resource ep93xx_keypad_resource[] = {
 	{
 		.start	= EP93XX_KEY_MATRIX_PHYS_BASE,
@@ -746,15 +649,22 @@ static struct resource ep93xx_keypad_resource[] = {
 };
 
 static struct platform_device ep93xx_keypad_device = {
-	.name			= "ep93xx-keypad",
-	.id			= -1,
-	.num_resources		= ARRAY_SIZE(ep93xx_keypad_resource),
-	.resource		= ep93xx_keypad_resource,
+	.name		= "ep93xx-keypad",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &ep93xx_keypad_data,
+	},
+	.num_resources	= ARRAY_SIZE(ep93xx_keypad_resource),
+	.resource	= ep93xx_keypad_resource,
 };
 
+/**
+ * ep93xx_register_keypad - Register the keypad platform device.
+ * @data:	platform specific keypad configuration (__initdata)
+ */
 void __init ep93xx_register_keypad(struct ep93xx_keypad_platform_data *data)
 {
-	ep93xx_keypad_device.dev.platform_data = data;
+	ep93xx_keypad_data = *data;
 	platform_device_register(&ep93xx_keypad_device);
 }
 
diff --git a/arch/arm/mach-ep93xx/dma-m2p.c b/arch/arm/mach-ep93xx/dma-m2p.c
index dbcac9c40a2..8904ca4e2e2 100644
--- a/arch/arm/mach-ep93xx/dma-m2p.c
+++ b/arch/arm/mach-ep93xx/dma-m2p.c
@@ -28,6 +28,8 @@
  * with this implementation.
  */
 
+#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/clk.h>
 #include <linux/err.h>
@@ -173,7 +175,7 @@ static irqreturn_t m2p_irq(int irq, void *dev_id)
 
 	switch (m2p_channel_state(ch)) {
 	case STATE_IDLE:
-		pr_crit("m2p_irq: dma interrupt without a dma buffer\n");
+		pr_crit("dma interrupt without a dma buffer\n");
 		BUG();
 		break;
 
@@ -197,7 +199,7 @@ static irqreturn_t m2p_irq(int irq, void *dev_id)
 		break;
 
 	case STATE_NEXT:
-		pr_crit("m2p_irq: dma interrupt while next\n");
+		pr_crit("dma interrupt while next\n");
 		BUG();
 		break;
 	}
diff --git a/arch/arm/mach-ep93xx/edb93xx.c b/arch/arm/mach-ep93xx/edb93xx.c
index a4a7be30800..3884182cd36 100644
--- a/arch/arm/mach-ep93xx/edb93xx.c
+++ b/arch/arm/mach-ep93xx/edb93xx.c
@@ -74,7 +74,7 @@ static void __init edb93xx_register_flash(void)
 	}
 }
 
-static struct ep93xx_eth_data edb93xx_eth_data = {
+static struct ep93xx_eth_data __initdata edb93xx_eth_data = {
 	.phy_id		= 1,
 };
 
@@ -82,7 +82,7 @@ static struct ep93xx_eth_data edb93xx_eth_data = {
 /*************************************************************************
  * EDB93xx i2c peripheral handling
  *************************************************************************/
-static struct i2c_gpio_platform_data edb93xx_i2c_gpio_data = {
+static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data = {
 	.sda_pin		= EP93XX_GPIO_LINE_EEDAT,
 	.sda_is_open_drain	= 0,
 	.scl_pin		= EP93XX_GPIO_LINE_EECLK,
@@ -118,12 +118,33 @@ static void __init edb93xx_register_i2c(void)
 	}
 }
 
+
+/*************************************************************************
+ * EDB93xx pwm
+ *************************************************************************/
+static void __init edb93xx_register_pwm(void)
+{
+	if (machine_is_edb9301() ||
+	    machine_is_edb9302() || machine_is_edb9302a()) {
+		/* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
+		ep93xx_register_pwm(0, 1);
+	} else if (machine_is_edb9307() || machine_is_edb9307a()) {
+		/* EP9307 only has pwm.0 (PWMOUT) */
+		ep93xx_register_pwm(1, 0);
+	} else {
+		/* EP9312 and EP9315 have both */
+		ep93xx_register_pwm(1, 1);
+	}
+}
+
+
 static void __init edb93xx_init_machine(void)
 {
 	ep93xx_init_devices();
 	edb93xx_register_flash();
 	ep93xx_register_eth(&edb93xx_eth_data, 1);
 	edb93xx_register_i2c();
+	edb93xx_register_pwm();
 }
 
 
diff --git a/arch/arm/mach-ep93xx/gesbc9312.c b/arch/arm/mach-ep93xx/gesbc9312.c
index 3da7ca816d1..a809618e9f0 100644
--- a/arch/arm/mach-ep93xx/gesbc9312.c
+++ b/arch/arm/mach-ep93xx/gesbc9312.c
@@ -41,7 +41,7 @@ static struct platform_device gesbc9312_flash = {
 	.resource	= &gesbc9312_flash_resource,
 };
 
-static struct ep93xx_eth_data gesbc9312_eth_data = {
+static struct ep93xx_eth_data __initdata gesbc9312_eth_data = {
 	.phy_id		= 1,
 };
 
diff --git a/arch/arm/mach-ep93xx/gpio.c b/arch/arm/mach-ep93xx/gpio.c
index 1ea8871e03a..cf547ad7ebd 100644
--- a/arch/arm/mach-ep93xx/gpio.c
+++ b/arch/arm/mach-ep93xx/gpio.c
@@ -13,6 +13,8 @@
  *  published by the Free Software Foundation.
  */
 
+#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
+
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/seq_file.h>
@@ -22,6 +24,235 @@
 
 #include <mach/hardware.h>
 
+/*************************************************************************
+ * Interrupt handling for EP93xx on-chip GPIOs
+ *************************************************************************/
+static unsigned char gpio_int_unmasked[3];
+static unsigned char gpio_int_enabled[3];
+static unsigned char gpio_int_type1[3];
+static unsigned char gpio_int_type2[3];
+static unsigned char gpio_int_debounce[3];
+
+/* Port ordering is: A B F */
+static const u8 int_type1_register_offset[3]	= { 0x90, 0xac, 0x4c };
+static const u8 int_type2_register_offset[3]	= { 0x94, 0xb0, 0x50 };
+static const u8 eoi_register_offset[3]		= { 0x98, 0xb4, 0x54 };
+static const u8 int_en_register_offset[3]	= { 0x9c, 0xb8, 0x58 };
+static const u8 int_debounce_register_offset[3]	= { 0xa8, 0xc4, 0x64 };
+
+static void ep93xx_gpio_update_int_params(unsigned port)
+{
+	BUG_ON(port > 2);
+
+	__raw_writeb(0, EP93XX_GPIO_REG(int_en_register_offset[port]));
+
+	__raw_writeb(gpio_int_type2[port],
+		EP93XX_GPIO_REG(int_type2_register_offset[port]));
+
+	__raw_writeb(gpio_int_type1[port],
+		EP93XX_GPIO_REG(int_type1_register_offset[port]));
+
+	__raw_writeb(gpio_int_unmasked[port] & gpio_int_enabled[port],
+		EP93XX_GPIO_REG(int_en_register_offset[port]));
+}
+
+static inline void ep93xx_gpio_int_mask(unsigned line)
+{
+	gpio_int_unmasked[line >> 3] &= ~(1 << (line & 7));
+}
+
+void ep93xx_gpio_int_debounce(unsigned int irq, int enable)
+{
+	int line = irq_to_gpio(irq);
+	int port = line >> 3;
+	int port_mask = 1 << (line & 7);
+
+	if (enable)
+		gpio_int_debounce[port] |= port_mask;
+	else
+		gpio_int_debounce[port] &= ~port_mask;
+
+	__raw_writeb(gpio_int_debounce[port],
+		EP93XX_GPIO_REG(int_debounce_register_offset[port]));
+}
+EXPORT_SYMBOL(ep93xx_gpio_int_debounce);
+
+static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	unsigned char status;
+	int i;
+
+	status = __raw_readb(EP93XX_GPIO_A_INT_STATUS);
+	for (i = 0; i < 8; i++) {
+		if (status & (1 << i)) {
+			int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_A(0)) + i;
+			generic_handle_irq(gpio_irq);
+		}
+	}
+
+	status = __raw_readb(EP93XX_GPIO_B_INT_STATUS);
+	for (i = 0; i < 8; i++) {
+		if (status & (1 << i)) {
+			int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_B(0)) + i;
+			generic_handle_irq(gpio_irq);
+		}
+	}
+}
+
+static void ep93xx_gpio_f_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	/*
+	 * map discontiguous hw irq range to continous sw irq range:
+	 *
+	 *  IRQ_EP93XX_GPIO{0..7}MUX -> gpio_to_irq(EP93XX_GPIO_LINE_F({0..7})
+	 */
+	int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */
+	int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_F(0)) + port_f_idx;
+
+	generic_handle_irq(gpio_irq);
+}
+
+static void ep93xx_gpio_irq_ack(unsigned int irq)
+{
+	int line = irq_to_gpio(irq);
+	int port = line >> 3;
+	int port_mask = 1 << (line & 7);
+
+	if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {
+		gpio_int_type2[port] ^= port_mask; /* switch edge direction */
+		ep93xx_gpio_update_int_params(port);
+	}
+
+	__raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
+}
+
+static void ep93xx_gpio_irq_mask_ack(unsigned int irq)
+{
+	int line = irq_to_gpio(irq);
+	int port = line >> 3;
+	int port_mask = 1 << (line & 7);
+
+	if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
+		gpio_int_type2[port] ^= port_mask; /* switch edge direction */
+
+	gpio_int_unmasked[port] &= ~port_mask;
+	ep93xx_gpio_update_int_params(port);
+
+	__raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
+}
+
+static void ep93xx_gpio_irq_mask(unsigned int irq)
+{
+	int line = irq_to_gpio(irq);
+	int port = line >> 3;
+
+	gpio_int_unmasked[port] &= ~(1 << (line & 7));
+	ep93xx_gpio_update_int_params(port);
+}
+
+static void ep93xx_gpio_irq_unmask(unsigned int irq)
+{
+	int line = irq_to_gpio(irq);
+	int port = line >> 3;
+
+	gpio_int_unmasked[port] |= 1 << (line & 7);
+	ep93xx_gpio_update_int_params(port);
+}
+
+/*
+ * gpio_int_type1 controls whether the interrupt is level (0) or
+ * edge (1) triggered, while gpio_int_type2 controls whether it
+ * triggers on low/falling (0) or high/rising (1).
+ */
+static int ep93xx_gpio_irq_type(unsigned int irq, unsigned int type)
+{
+	struct irq_desc *desc = irq_desc + irq;
+	const int gpio = irq_to_gpio(irq);
+	const int port = gpio >> 3;
+	const int port_mask = 1 << (gpio & 7);
+
+	gpio_direction_input(gpio);
+
+	switch (type) {
+	case IRQ_TYPE_EDGE_RISING:
+		gpio_int_type1[port] |= port_mask;
+		gpio_int_type2[port] |= port_mask;
+		desc->handle_irq = handle_edge_irq;
+		break;
+	case IRQ_TYPE_EDGE_FALLING:
+		gpio_int_type1[port] |= port_mask;
+		gpio_int_type2[port] &= ~port_mask;
+		desc->handle_irq = handle_edge_irq;
+		break;
+	case IRQ_TYPE_LEVEL_HIGH:
+		gpio_int_type1[port] &= ~port_mask;
+		gpio_int_type2[port] |= port_mask;
+		desc->handle_irq = handle_level_irq;
+		break;
+	case IRQ_TYPE_LEVEL_LOW:
+		gpio_int_type1[port] &= ~port_mask;
+		gpio_int_type2[port] &= ~port_mask;
+		desc->handle_irq = handle_level_irq;
+		break;
+	case IRQ_TYPE_EDGE_BOTH:
+		gpio_int_type1[port] |= port_mask;
+		/* set initial polarity based on current input level */
+		if (gpio_get_value(gpio))
+			gpio_int_type2[port] &= ~port_mask; /* falling */
+		else
+			gpio_int_type2[port] |= port_mask; /* rising */
+		desc->handle_irq = handle_edge_irq;
+		break;
+	default:
+		pr_err("failed to set irq type %d for gpio %d\n", type, gpio);
+		return -EINVAL;
+	}
+
+	gpio_int_enabled[port] |= port_mask;
+
+	desc->status &= ~IRQ_TYPE_SENSE_MASK;
+	desc->status |= type & IRQ_TYPE_SENSE_MASK;
+
+	ep93xx_gpio_update_int_params(port);
+
+	return 0;
+}
+
+static struct irq_chip ep93xx_gpio_irq_chip = {
+	.name		= "GPIO",
+	.ack		= ep93xx_gpio_irq_ack,
+	.mask_ack	= ep93xx_gpio_irq_mask_ack,
+	.mask		= ep93xx_gpio_irq_mask,
+	.unmask		= ep93xx_gpio_irq_unmask,
+	.set_type	= ep93xx_gpio_irq_type,
+};
+
+void __init ep93xx_gpio_init_irq(void)
+{
+	int gpio_irq;
+
+	for (gpio_irq = gpio_to_irq(0);
+	     gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) {
+		set_irq_chip(gpio_irq, &ep93xx_gpio_irq_chip);
+		set_irq_handler(gpio_irq, handle_level_irq);
+		set_irq_flags(gpio_irq, IRQF_VALID);
+	}
+
+	set_irq_chained_handler(IRQ_EP93XX_GPIO_AB, ep93xx_gpio_ab_irq_handler);
+	set_irq_chained_handler(IRQ_EP93XX_GPIO0MUX, ep93xx_gpio_f_irq_handler);
+	set_irq_chained_handler(IRQ_EP93XX_GPIO1MUX, ep93xx_gpio_f_irq_handler);
+	set_irq_chained_handler(IRQ_EP93XX_GPIO2MUX, ep93xx_gpio_f_irq_handler);
+	set_irq_chained_handler(IRQ_EP93XX_GPIO3MUX, ep93xx_gpio_f_irq_handler);
+	set_irq_chained_handler(IRQ_EP93XX_GPIO4MUX, ep93xx_gpio_f_irq_handler);
+	set_irq_chained_handler(IRQ_EP93XX_GPIO5MUX, ep93xx_gpio_f_irq_handler);
+	set_irq_chained_handler(IRQ_EP93XX_GPIO6MUX, ep93xx_gpio_f_irq_handler);
+	set_irq_chained_handler(IRQ_EP93XX_GPIO7MUX, ep93xx_gpio_f_irq_handler);
+}
+
+
+/*************************************************************************
+ * gpiolib interface for EP93xx on-chip GPIOs
+ *************************************************************************/
 struct ep93xx_gpio_chip {
 	struct gpio_chip	chip;
 
@@ -31,10 +262,6 @@ struct ep93xx_gpio_chip {
 
 #define to_ep93xx_gpio_chip(c) container_of(c, struct ep93xx_gpio_chip, chip)
 
-/* From core.c */
-extern void ep93xx_gpio_int_mask(unsigned line);
-extern void ep93xx_gpio_update_int_params(unsigned port);
-
 static int ep93xx_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 {
 	struct ep93xx_gpio_chip *ep93xx_chip = to_ep93xx_gpio_chip(chip);
diff --git a/arch/arm/mach-ep93xx/include/mach/debug-macro.S b/arch/arm/mach-ep93xx/include/mach/debug-macro.S
index 802858bc809..5cd22444e22 100644
--- a/arch/arm/mach-ep93xx/include/mach/debug-macro.S
+++ b/arch/arm/mach-ep93xx/include/mach/debug-macro.S
@@ -11,7 +11,7 @@
  */
 #include <mach/ep93xx-regs.h>
 
-		.macro	addruart,rx
+		.macro	addruart, rx, tmp
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1				@ MMU enabled?
 		ldreq	\rx, =EP93XX_APB_PHYS_BASE	@ Physical base
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
index d55194a4c09..b1e096f0c2d 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
@@ -92,21 +92,6 @@
 
 /* APB peripherals */
 #define EP93XX_TIMER_BASE		EP93XX_APB_IOMEM(0x00010000)
-#define EP93XX_TIMER_REG(x)		(EP93XX_TIMER_BASE + (x))
-#define EP93XX_TIMER1_LOAD		EP93XX_TIMER_REG(0x00)
-#define EP93XX_TIMER1_VALUE		EP93XX_TIMER_REG(0x04)
-#define EP93XX_TIMER1_CONTROL		EP93XX_TIMER_REG(0x08)
-#define EP93XX_TIMER1_CLEAR		EP93XX_TIMER_REG(0x0c)
-#define EP93XX_TIMER2_LOAD		EP93XX_TIMER_REG(0x20)
-#define EP93XX_TIMER2_VALUE		EP93XX_TIMER_REG(0x24)
-#define EP93XX_TIMER2_CONTROL		EP93XX_TIMER_REG(0x28)
-#define EP93XX_TIMER2_CLEAR		EP93XX_TIMER_REG(0x2c)
-#define EP93XX_TIMER4_VALUE_LOW		EP93XX_TIMER_REG(0x60)
-#define EP93XX_TIMER4_VALUE_HIGH	EP93XX_TIMER_REG(0x64)
-#define EP93XX_TIMER3_LOAD		EP93XX_TIMER_REG(0x80)
-#define EP93XX_TIMER3_VALUE		EP93XX_TIMER_REG(0x84)
-#define EP93XX_TIMER3_CONTROL		EP93XX_TIMER_REG(0x88)
-#define EP93XX_TIMER3_CLEAR		EP93XX_TIMER_REG(0x8c)
 
 #define EP93XX_I2S_BASE			EP93XX_APB_IOMEM(0x00020000)
 
@@ -121,6 +106,7 @@
 
 #define EP93XX_AAC_BASE			EP93XX_APB_IOMEM(0x00080000)
 
+#define EP93XX_SPI_PHYS_BASE		EP93XX_APB_PHYS(0x000a0000)
 #define EP93XX_SPI_BASE			EP93XX_APB_IOMEM(0x000a0000)
 
 #define EP93XX_IRDA_BASE		EP93XX_APB_IOMEM(0x000b0000)
@@ -167,8 +153,11 @@
 #define EP93XX_SYSCON_PWRCNT_DMA_M2P1	(1<<16)
 #define EP93XX_SYSCON_HALT		EP93XX_SYSCON_REG(0x08)
 #define EP93XX_SYSCON_STANDBY		EP93XX_SYSCON_REG(0x0c)
-#define EP93XX_SYSCON_CLOCK_SET1	EP93XX_SYSCON_REG(0x20)
-#define EP93XX_SYSCON_CLOCK_SET2	EP93XX_SYSCON_REG(0x24)
+#define EP93XX_SYSCON_CLKSET1		EP93XX_SYSCON_REG(0x20)
+#define EP93XX_SYSCON_CLKSET1_NBYP1	(1<<23)
+#define EP93XX_SYSCON_CLKSET2		EP93XX_SYSCON_REG(0x24)
+#define EP93XX_SYSCON_CLKSET2_NBYP2	(1<<19)
+#define EP93XX_SYSCON_CLKSET2_PLL2_EN	(1<<18)
 #define EP93XX_SYSCON_DEVCFG		EP93XX_SYSCON_REG(0x80)
 #define EP93XX_SYSCON_DEVCFG_SWRST	(1<<31)
 #define EP93XX_SYSCON_DEVCFG_D1ONG	(1<<30)
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx_keypad.h b/arch/arm/mach-ep93xx/include/mach/ep93xx_keypad.h
index 62d17421e48..1e2f4e97f42 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx_keypad.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx_keypad.h
@@ -5,6 +5,8 @@
 #ifndef __ASM_ARCH_EP93XX_KEYPAD_H
 #define __ASM_ARCH_EP93XX_KEYPAD_H
 
+struct matrix_keymap_data;
+
 /* flags for the ep93xx_keypad driver */
 #define EP93XX_KEYPAD_DISABLE_3_KEY	(1<<0)	/* disable 3-key reset */
 #define EP93XX_KEYPAD_DIAG_MODE		(1<<1)	/* diagnostic mode */
@@ -15,15 +17,13 @@
 
 /**
  * struct ep93xx_keypad_platform_data - platform specific device structure
- * @matrix_key_map:		array of keycodes defining the keypad matrix
- * @matrix_key_map_size:	ARRAY_SIZE(matrix_key_map)
- * @debounce:			debounce start count; terminal count is 0xff
- * @prescale:			row/column counter pre-scaler load value
- * @flags:			see above
+ * @keymap_data:	pointer to &matrix_keymap_data
+ * @debounce:		debounce start count; terminal count is 0xff
+ * @prescale:		row/column counter pre-scaler load value
+ * @flags:		see above
  */
 struct ep93xx_keypad_platform_data {
-	unsigned int	*matrix_key_map;
-	int		matrix_key_map_size;
+	struct matrix_keymap_data *keymap_data;
 	unsigned int	debounce;
 	unsigned int	prescale;
 	unsigned int	flags;
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx_spi.h b/arch/arm/mach-ep93xx/include/mach/ep93xx_spi.h
new file mode 100644
index 00000000000..0a37961b345
--- /dev/null
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx_spi.h
@@ -0,0 +1,27 @@
+#ifndef __ASM_MACH_EP93XX_SPI_H
+#define __ASM_MACH_EP93XX_SPI_H
+
+struct spi_device;
+
+/**
+ * struct ep93xx_spi_info - EP93xx specific SPI descriptor
+ * @num_chipselect: number of chip selects on this board, must be
+ *                  at least one
+ */
+struct ep93xx_spi_info {
+	int	num_chipselect;
+};
+
+/**
+ * struct ep93xx_spi_chip_ops - operation callbacks for SPI slave device
+ * @setup: setup the chip select mechanism
+ * @cleanup: cleanup the chip select mechanism
+ * @cs_control: control the device chip select
+ */
+struct ep93xx_spi_chip_ops {
+	int	(*setup)(struct spi_device *spi);
+	void	(*cleanup)(struct spi_device *spi);
+	void	(*cs_control)(struct spi_device *spi, int value);
+};
+
+#endif /* __ASM_MACH_EP93XX_SPI_H */
diff --git a/arch/arm/mach-ep93xx/include/mach/platform.h b/arch/arm/mach-ep93xx/include/mach/platform.h
index c6dc14dbca1..9a4413dd44b 100644
--- a/arch/arm/mach-ep93xx/include/mach/platform.h
+++ b/arch/arm/mach-ep93xx/include/mach/platform.h
@@ -6,9 +6,11 @@
 
 struct i2c_gpio_platform_data;
 struct i2c_board_info;
+struct spi_board_info;
 struct platform_device;
 struct ep93xxfb_mach_info;
 struct ep93xx_keypad_platform_data;
+struct ep93xx_spi_info;
 
 struct ep93xx_eth_data
 {
@@ -33,9 +35,19 @@ static inline void ep93xx_devcfg_clear_bits(unsigned int bits)
 	ep93xx_devcfg_set_clear(0x00, bits);
 }
 
+#define EP93XX_CHIP_REV_D0	3
+#define EP93XX_CHIP_REV_D1	4
+#define EP93XX_CHIP_REV_E0	5
+#define EP93XX_CHIP_REV_E1	6
+#define EP93XX_CHIP_REV_E2	7
+
+unsigned int ep93xx_chip_revision(void);
+
 void ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr);
 void ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
 			 struct i2c_board_info *devices, int num);
+void ep93xx_register_spi(struct ep93xx_spi_info *info,
+			 struct spi_board_info *devices, int num);
 void ep93xx_register_fb(struct ep93xxfb_mach_info *data);
 void ep93xx_register_pwm(int pwm0, int pwm1);
 int ep93xx_pwm_acquire_gpio(struct platform_device *pdev);
diff --git a/arch/arm/mach-ep93xx/include/mach/ts72xx.h b/arch/arm/mach-ep93xx/include/mach/ts72xx.h
index 3bd934e9a7f..0eabec62cd9 100644
--- a/arch/arm/mach-ep93xx/include/mach/ts72xx.h
+++ b/arch/arm/mach-ep93xx/include/mach/ts72xx.h
@@ -9,9 +9,6 @@
  * febff000	22000000	4K	model number register
  * febfe000	22400000	4K	options register
  * febfd000	22800000	4K	options register #2
- * febfc000	[67]0000000	4K	NAND data register
- * febfb000	[67]0400000	4K	NAND control register
- * febfa000	[67]0800000	4K	NAND busy register
  * febf9000	10800000	4K	TS-5620 RTC index register
  * febf8000	11700000	4K	TS-5620 RTC data register
  */
@@ -41,22 +38,6 @@
 #define TS72XX_OPTIONS2_TS9420_BOOT	0x02
 
 
-#define TS72XX_NAND1_DATA_PHYS_BASE	0x60000000
-#define TS72XX_NAND2_DATA_PHYS_BASE	0x70000000
-#define TS72XX_NAND_DATA_VIRT_BASE	0xfebfc000
-#define TS72XX_NAND_DATA_SIZE		0x00001000
-
-#define TS72XX_NAND1_CONTROL_PHYS_BASE	0x60400000
-#define TS72XX_NAND2_CONTROL_PHYS_BASE	0x70400000
-#define TS72XX_NAND_CONTROL_VIRT_BASE	0xfebfb000
-#define TS72XX_NAND_CONTROL_SIZE	0x00001000
-
-#define TS72XX_NAND1_BUSY_PHYS_BASE	0x60800000
-#define TS72XX_NAND2_BUSY_PHYS_BASE	0x70800000
-#define TS72XX_NAND_BUSY_VIRT_BASE	0xfebfa000
-#define TS72XX_NAND_BUSY_SIZE		0x00001000
-
-
 #define TS72XX_RTC_INDEX_VIRT_BASE	0xfebf9000
 #define TS72XX_RTC_INDEX_PHYS_BASE	0x10800000
 #define TS72XX_RTC_INDEX_SIZE		0x00001000
@@ -65,6 +46,8 @@
 #define TS72XX_RTC_DATA_PHYS_BASE	0x11700000
 #define TS72XX_RTC_DATA_SIZE		0x00001000
 
+#define TS72XX_WDT_CONTROL_PHYS_BASE	0x23800000
+#define TS72XX_WDT_FEED_PHYS_BASE	0x23c00000
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/arm/mach-ep93xx/include/mach/vmalloc.h b/arch/arm/mach-ep93xx/include/mach/vmalloc.h
index aed21cd3fe2..1b3f25d03d3 100644
--- a/arch/arm/mach-ep93xx/include/mach/vmalloc.h
+++ b/arch/arm/mach-ep93xx/include/mach/vmalloc.h
@@ -2,4 +2,4 @@
  * arch/arm/mach-ep93xx/include/mach/vmalloc.h
  */
 
-#define VMALLOC_END	0xfe800000
+#define VMALLOC_END	0xfe800000UL
diff --git a/arch/arm/mach-ep93xx/micro9.c b/arch/arm/mach-ep93xx/micro9.c
index f3757a1c5a1..1cc911b4efa 100644
--- a/arch/arm/mach-ep93xx/micro9.c
+++ b/arch/arm/mach-ep93xx/micro9.c
@@ -28,7 +28,7 @@
  *
  * Micro9-High has up to 64MB of 32-bit flash on CS1
  * Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1
- * Micro9-Lite uses a seperate MTD map driver for flash support
+ * Micro9-Lite uses a separate MTD map driver for flash support
  * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
  *************************************************************************/
 static struct physmap_flash_data micro9_flash_data;
@@ -80,7 +80,7 @@ static void __init micro9_register_flash(void)
 /*************************************************************************
  * Micro9 Ethernet
  *************************************************************************/
-static struct ep93xx_eth_data micro9_eth_data = {
+static struct ep93xx_eth_data __initdata micro9_eth_data = {
 	.phy_id		= 0x1f,
 };
 
diff --git a/arch/arm/mach-ep93xx/simone.c b/arch/arm/mach-ep93xx/simone.c
new file mode 100644
index 00000000000..388aec95f60
--- /dev/null
+++ b/arch/arm/mach-ep93xx/simone.c
@@ -0,0 +1,97 @@
+/*
+ * arch/arm/mach-ep93xx/simone.c
+ * Simplemachines Sim.One support.
+ *
+ * Copyright (C) 2010 Ryan Mallon <ryan@bluewatersys.com>
+ *
+ * Based on the 2.6.24.7 support:
+ *   Copyright (C) 2009 Simplemachines
+ *   MMC support by Peter Ivanov <ivanovp@gmail.com>, 2007
+ *
+ * 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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/i2c-gpio.h>
+
+#include <mach/hardware.h>
+#include <mach/fb.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+static struct physmap_flash_data simone_flash_data = {
+	.width		= 2,
+};
+
+static struct resource simone_flash_resource = {
+	.start		= EP93XX_CS6_PHYS_BASE,
+	.end		= EP93XX_CS6_PHYS_BASE + SZ_8M - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device simone_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.num_resources	= 1,
+	.resource	= &simone_flash_resource,
+	.dev = {
+		.platform_data	= &simone_flash_data,
+	},
+};
+
+static struct ep93xx_eth_data __initdata simone_eth_data = {
+	.phy_id		= 1,
+};
+
+static struct ep93xxfb_mach_info __initdata simone_fb_info = {
+	.num_modes	= EP93XXFB_USE_MODEDB,
+	.bpp		= 16,
+	.flags		= EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
+};
+
+static struct i2c_gpio_platform_data __initdata simone_i2c_gpio_data = {
+	.sda_pin		= EP93XX_GPIO_LINE_EEDAT,
+	.sda_is_open_drain	= 0,
+	.scl_pin		= EP93XX_GPIO_LINE_EECLK,
+	.scl_is_open_drain	= 0,
+	.udelay			= 0,
+	.timeout		= 0,
+};
+
+static struct i2c_board_info __initdata simone_i2c_board_info[] = {
+	{
+		I2C_BOARD_INFO("ds1337", 0x68),
+	},
+};
+
+static void __init simone_init_machine(void)
+{
+	ep93xx_init_devices();
+
+	platform_device_register(&simone_flash);
+	ep93xx_register_eth(&simone_eth_data, 1);
+	ep93xx_register_fb(&simone_fb_info);
+	ep93xx_register_i2c(&simone_i2c_gpio_data, simone_i2c_board_info,
+			    ARRAY_SIZE(simone_i2c_board_info));
+}
+
+MACHINE_START(SIM_ONE, "Simplemachines Sim.One Board")
+/* Maintainer: Ryan Mallon <ryan@bluewatersys.com> */
+	.phys_io	= EP93XX_APB_PHYS_BASE,
+	.io_pg_offst	= ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
+	.boot_params	= EP93XX_SDCE0_PHYS_BASE + 0x100,
+	.map_io		= ep93xx_map_io,
+	.init_irq	= ep93xx_init_irq,
+	.timer		= &ep93xx_timer,
+	.init_machine	= simone_init_machine,
+MACHINE_END
diff --git a/arch/arm/mach-ep93xx/snappercl15.c b/arch/arm/mach-ep93xx/snappercl15.c
new file mode 100644
index 00000000000..38deaee4039
--- /dev/null
+++ b/arch/arm/mach-ep93xx/snappercl15.c
@@ -0,0 +1,172 @@
+/*
+ * arch/arm/mach-ep93xx/snappercl15.c
+ * Bluewater Systems Snapper CL15 system module
+ *
+ * Copyright (C) 2009 Bluewater Systems Ltd
+ * Author: Ryan Mallon <ryan@bluewatersys.com>
+ *
+ * NAND code adapted from driver by:
+ *   Andre Renaud <andre@bluewatersys.com>
+ *   James R. McKaskill
+ *
+ * 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.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/i2c-gpio.h>
+#include <linux/fb.h>
+
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+
+#include <mach/hardware.h>
+#include <mach/fb.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#define SNAPPERCL15_NAND_BASE	(EP93XX_CS7_PHYS_BASE + SZ_16M)
+
+#define SNAPPERCL15_NAND_WPN	(1 << 8)  /* Write protect (active low) */
+#define SNAPPERCL15_NAND_ALE	(1 << 9)  /* Address latch */
+#define SNAPPERCL15_NAND_CLE	(1 << 10) /* Command latch */
+#define SNAPPERCL15_NAND_CEN	(1 << 11) /* Chip enable (active low) */
+#define SNAPPERCL15_NAND_RDY	(1 << 14) /* Device ready */
+
+#define NAND_CTRL_ADDR(chip) 	(chip->IO_ADDR_W + 0x40)
+
+static void snappercl15_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
+				      unsigned int ctrl)
+{
+	struct nand_chip *chip = mtd->priv;
+	static u16 nand_state = SNAPPERCL15_NAND_WPN;
+	u16 set;
+
+	if (ctrl & NAND_CTRL_CHANGE) {
+		set = SNAPPERCL15_NAND_CEN | SNAPPERCL15_NAND_WPN;
+
+		if (ctrl & NAND_NCE)
+			set &= ~SNAPPERCL15_NAND_CEN;
+		if (ctrl & NAND_CLE)
+			set |= SNAPPERCL15_NAND_CLE;
+		if (ctrl & NAND_ALE)
+			set |= SNAPPERCL15_NAND_ALE;
+
+		nand_state &= ~(SNAPPERCL15_NAND_CEN |
+				SNAPPERCL15_NAND_CLE |
+				SNAPPERCL15_NAND_ALE);
+		nand_state |= set;
+		__raw_writew(nand_state, NAND_CTRL_ADDR(chip));
+	}
+
+	if (cmd != NAND_CMD_NONE)
+		__raw_writew((cmd & 0xff) | nand_state, chip->IO_ADDR_W);
+}
+
+static int snappercl15_nand_dev_ready(struct mtd_info *mtd)
+{
+	struct nand_chip *chip = mtd->priv;
+
+	return !!(__raw_readw(NAND_CTRL_ADDR(chip)) & SNAPPERCL15_NAND_RDY);
+}
+
+static const char *snappercl15_nand_part_probes[] = {"cmdlinepart", NULL};
+
+static struct mtd_partition snappercl15_nand_parts[] = {
+	{
+		.name		= "Kernel",
+		.offset		= 0,
+		.size		= SZ_2M,
+	},
+	{
+		.name		= "Filesystem",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct platform_nand_data snappercl15_nand_data = {
+	.chip = {
+		.nr_chips		= 1,
+		.part_probe_types	= snappercl15_nand_part_probes,
+		.partitions		= snappercl15_nand_parts,
+		.nr_partitions		= ARRAY_SIZE(snappercl15_nand_parts),
+		.options		= NAND_NO_AUTOINCR,
+		.chip_delay		= 25,
+	},
+	.ctrl = {
+		.dev_ready		= snappercl15_nand_dev_ready,
+		.cmd_ctrl		= snappercl15_nand_cmd_ctrl,
+	},
+};
+
+static struct resource snappercl15_nand_resource[] = {
+	{
+		.start		= SNAPPERCL15_NAND_BASE,
+		.end		= SNAPPERCL15_NAND_BASE + SZ_4K - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device snappercl15_nand_device = {
+	.name			= "gen_nand",
+	.id			= -1,
+	.dev.platform_data	= &snappercl15_nand_data,
+	.resource		= snappercl15_nand_resource,
+	.num_resources		= ARRAY_SIZE(snappercl15_nand_resource),
+};
+
+static struct ep93xx_eth_data __initdata snappercl15_eth_data = {
+	.phy_id			= 1,
+};
+
+static struct i2c_gpio_platform_data __initdata snappercl15_i2c_gpio_data = {
+	.sda_pin		= EP93XX_GPIO_LINE_EEDAT,
+	.sda_is_open_drain	= 0,
+	.scl_pin		= EP93XX_GPIO_LINE_EECLK,
+	.scl_is_open_drain	= 0,
+	.udelay			= 0,
+	.timeout		= 0,
+};
+
+static struct i2c_board_info __initdata snappercl15_i2c_data[] = {
+	{
+		/* Audio codec */
+		I2C_BOARD_INFO("tlv320aic23", 0x1a),
+	},
+};
+
+static struct ep93xxfb_mach_info __initdata snappercl15_fb_info = {
+	.num_modes		= EP93XXFB_USE_MODEDB,
+	.bpp			= 16,
+};
+
+static void __init snappercl15_init_machine(void)
+{
+	ep93xx_init_devices();
+	ep93xx_register_eth(&snappercl15_eth_data, 1);
+	ep93xx_register_i2c(&snappercl15_i2c_gpio_data, snappercl15_i2c_data,
+			    ARRAY_SIZE(snappercl15_i2c_data));
+	ep93xx_register_fb(&snappercl15_fb_info);
+	platform_device_register(&snappercl15_nand_device);
+}
+
+MACHINE_START(SNAPPER_CL15, "Bluewater Systems Snapper CL15")
+	/* Maintainer: Ryan Mallon <ryan@bluewatersys.com> */
+	.phys_io	= EP93XX_APB_PHYS_BASE,
+	.io_pg_offst	= ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
+	.boot_params	= EP93XX_SDCE0_PHYS_BASE + 0x100,
+	.map_io		= ep93xx_map_io,
+	.init_irq	= ep93xx_init_irq,
+	.timer 		= &ep93xx_timer,
+	.init_machine	= snappercl15_init_machine,
+MACHINE_END
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index 259f7822ba5..ae7319e588c 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -10,12 +10,16 @@
  * your option) any later version.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/m48t86.h>
 #include <linux/mtd/physmap.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
 
 #include <mach/hardware.h>
 #include <mach/ts72xx.h>
@@ -54,92 +58,162 @@ static struct map_desc ts72xx_io_desc[] __initdata = {
 	}
 };
 
-static struct map_desc ts72xx_nand_io_desc[] __initdata = {
-	{
-		.virtual	= TS72XX_NAND_DATA_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_NAND1_DATA_PHYS_BASE),
-		.length		= TS72XX_NAND_DATA_SIZE,
-		.type		= MT_DEVICE,
-	}, {
-		.virtual	= TS72XX_NAND_CONTROL_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_NAND1_CONTROL_PHYS_BASE),
-		.length		= TS72XX_NAND_CONTROL_SIZE,
-		.type		= MT_DEVICE,
-	}, {
-		.virtual	= TS72XX_NAND_BUSY_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_NAND1_BUSY_PHYS_BASE),
-		.length		= TS72XX_NAND_BUSY_SIZE,
-		.type		= MT_DEVICE,
+static void __init ts72xx_map_io(void)
+{
+	ep93xx_map_io();
+	iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc));
+}
+
+
+/*************************************************************************
+ * NAND flash
+ *************************************************************************/
+#define TS72XX_NAND_CONTROL_ADDR_LINE	22	/* 0xN0400000 */
+#define TS72XX_NAND_BUSY_ADDR_LINE	23	/* 0xN0800000 */
+
+static void ts72xx_nand_hwcontrol(struct mtd_info *mtd,
+				  int cmd, unsigned int ctrl)
+{
+	struct nand_chip *chip = mtd->priv;
+
+	if (ctrl & NAND_CTRL_CHANGE) {
+		void __iomem *addr = chip->IO_ADDR_R;
+		unsigned char bits;
+
+		addr += (1 << TS72XX_NAND_CONTROL_ADDR_LINE);
+
+		bits = __raw_readb(addr) & ~0x07;
+		bits |= (ctrl & NAND_NCE) << 2;	/* bit 0 -> bit 2 */
+		bits |= (ctrl & NAND_CLE);	/* bit 1 -> bit 1 */
+		bits |= (ctrl & NAND_ALE) >> 2;	/* bit 2 -> bit 0 */
+
+		__raw_writeb(bits, addr);
 	}
-};
 
-static struct map_desc ts72xx_alternate_nand_io_desc[] __initdata = {
+	if (cmd != NAND_CMD_NONE)
+		__raw_writeb(cmd, chip->IO_ADDR_W);
+}
+
+static int ts72xx_nand_device_ready(struct mtd_info *mtd)
+{
+	struct nand_chip *chip = mtd->priv;
+	void __iomem *addr = chip->IO_ADDR_R;
+
+	addr += (1 << TS72XX_NAND_BUSY_ADDR_LINE);
+
+	return !!(__raw_readb(addr) & 0x20);
+}
+
+static const char *ts72xx_nand_part_probes[] = { "cmdlinepart", NULL };
+
+#define TS72XX_BOOTROM_PART_SIZE	(SZ_16K)
+#define TS72XX_REDBOOT_PART_SIZE	(SZ_2M + SZ_1M)
+
+static struct mtd_partition ts72xx_nand_parts[] = {
 	{
-		.virtual	= TS72XX_NAND_DATA_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_NAND2_DATA_PHYS_BASE),
-		.length		= TS72XX_NAND_DATA_SIZE,
-		.type		= MT_DEVICE,
+		.name		= "TS-BOOTROM",
+		.offset		= 0,
+		.size		= TS72XX_BOOTROM_PART_SIZE,
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
 	}, {
-		.virtual	= TS72XX_NAND_CONTROL_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_NAND2_CONTROL_PHYS_BASE),
-		.length		= TS72XX_NAND_CONTROL_SIZE,
-		.type		= MT_DEVICE,
+		.name		= "Linux",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 0,			/* filled in later */
 	}, {
-		.virtual	= TS72XX_NAND_BUSY_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_NAND2_BUSY_PHYS_BASE),
-		.length		= TS72XX_NAND_BUSY_SIZE,
-		.type		= MT_DEVICE,
-	}
+		.name		= "RedBoot",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= MTDPART_SIZ_FULL,
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
 };
 
-static void __init ts72xx_map_io(void)
+static void ts72xx_nand_set_parts(uint64_t size,
+				  struct platform_nand_chip *chip)
 {
-	ep93xx_map_io();
-	iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc));
+	/* Factory TS-72xx boards only come with 32MiB or 128MiB NAND options */
+	if (size == SZ_32M || size == SZ_128M) {
+		/* Set the "Linux" partition size */
+		ts72xx_nand_parts[1].size = size - TS72XX_REDBOOT_PART_SIZE;
 
-	/*
-	 * The TS-7200 has NOR flash, the other models have NAND flash.
-	 */
-	if (!board_is_ts7200()) {
-		if (is_ts9420_installed()) {
-			iotable_init(ts72xx_alternate_nand_io_desc,
-				ARRAY_SIZE(ts72xx_alternate_nand_io_desc));
-		} else {
-			iotable_init(ts72xx_nand_io_desc,
-				ARRAY_SIZE(ts72xx_nand_io_desc));
-		}
+		chip->partitions = ts72xx_nand_parts;
+		chip->nr_partitions = ARRAY_SIZE(ts72xx_nand_parts);
+	} else {
+		pr_warning("Unknown nand disk size:%lluMiB\n", size >> 20);
 	}
 }
 
+static struct platform_nand_data ts72xx_nand_data = {
+	.chip = {
+		.nr_chips	= 1,
+		.chip_offset	= 0,
+		.chip_delay	= 15,
+		.part_probe_types = ts72xx_nand_part_probes,
+		.set_parts	= ts72xx_nand_set_parts,
+	},
+	.ctrl = {
+		.cmd_ctrl	= ts72xx_nand_hwcontrol,
+		.dev_ready	= ts72xx_nand_device_ready,
+	},
+};
+
+static struct resource ts72xx_nand_resource[] = {
+	{
+		.start		= 0,			/* filled in later */
+		.end		= 0,			/* filled in later */
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device ts72xx_nand_flash = {
+	.name			= "gen_nand",
+	.id			= -1,
+	.dev.platform_data	= &ts72xx_nand_data,
+	.resource		= ts72xx_nand_resource,
+	.num_resources		= ARRAY_SIZE(ts72xx_nand_resource),
+};
+
+
 /*************************************************************************
  * NOR flash (TS-7200 only)
  *************************************************************************/
-static struct physmap_flash_data ts72xx_flash_data = {
+static struct physmap_flash_data ts72xx_nor_data = {
 	.width		= 2,
 };
 
-static struct resource ts72xx_flash_resource = {
+static struct resource ts72xx_nor_resource = {
 	.start		= EP93XX_CS6_PHYS_BASE,
 	.end		= EP93XX_CS6_PHYS_BASE + SZ_16M - 1,
 	.flags		= IORESOURCE_MEM,
 };
 
-static struct platform_device ts72xx_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &ts72xx_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &ts72xx_flash_resource,
+static struct platform_device ts72xx_nor_flash = {
+	.name			= "physmap-flash",
+	.id			= 0,
+	.dev.platform_data	= &ts72xx_nor_data,
+	.resource		= &ts72xx_nor_resource,
+	.num_resources		= 1,
 };
 
 static void __init ts72xx_register_flash(void)
 {
-	if (board_is_ts7200())
-		platform_device_register(&ts72xx_flash);
+	if (board_is_ts7200()) {
+		platform_device_register(&ts72xx_nor_flash);
+	} else {
+		resource_size_t start;
+
+		if (is_ts9420_installed())
+			start = EP93XX_CS7_PHYS_BASE;
+		else
+			start = EP93XX_CS6_PHYS_BASE;
+
+		ts72xx_nand_resource[0].start = start;
+		ts72xx_nand_resource[0].end = start + SZ_16M - 1;
+
+		platform_device_register(&ts72xx_nand_flash);
+	}
 }
 
+
 static unsigned char ts72xx_rtc_readbyte(unsigned long addr)
 {
 	__raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE);
@@ -166,7 +240,27 @@ static struct platform_device ts72xx_rtc_device = {
 	.num_resources	= 0,
 };
 
-static struct ep93xx_eth_data ts72xx_eth_data = {
+static struct resource ts72xx_wdt_resources[] = {
+	{
+		.start	= TS72XX_WDT_CONTROL_PHYS_BASE,
+		.end	= TS72XX_WDT_CONTROL_PHYS_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= TS72XX_WDT_FEED_PHYS_BASE,
+		.end	= TS72XX_WDT_FEED_PHYS_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device ts72xx_wdt_device = {
+	.name		= "ts72xx-wdt",
+	.id		= -1,
+	.num_resources 	= ARRAY_SIZE(ts72xx_wdt_resources),
+	.resource	= ts72xx_wdt_resources,
+};
+
+static struct ep93xx_eth_data __initdata ts72xx_eth_data = {
 	.phy_id		= 1,
 };
 
@@ -175,6 +269,7 @@ static void __init ts72xx_init_machine(void)
 	ep93xx_init_devices();
 	ts72xx_register_flash();
 	platform_device_register(&ts72xx_rtc_device);
+	platform_device_register(&ts72xx_wdt_device);
 
 	ep93xx_register_eth(&ts72xx_eth_data, 1);
 }