ARM: 5820/1: SA1100: h3100/h3600: split h3600.c

Split common h3600.c into three separate files: h3100.c, h3600.c and
h3xxx.c (the latter contains common code for h3100/h3600)
Copyright boilerplates and #includes are copied intact and will be
cleaned up later.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

5 files changed, 427 insertions, 335 deletions

diff --git a/arch/arm/mach-sa1100/Makefile b/arch/arm/mach-sa1100/Makefile
index bb7b8198d0c4..89349c1dd7a6 100644
--- a/arch/arm/mach-sa1100/Makefile
+++ b/arch/arm/mach-sa1100/Makefile
@@ -25,8 +25,8 @@ led-$(CONFIG_SA1100_CERF)		+= leds-cerf.o
 
 obj-$(CONFIG_SA1100_COLLIE)		+= collie.o
 
-obj-$(CONFIG_SA1100_H3100)		+= h3600.o
-obj-$(CONFIG_SA1100_H3600)		+= h3600.o
+obj-$(CONFIG_SA1100_H3100)		+= h3100.o h3xxx.o
+obj-$(CONFIG_SA1100_H3600)		+= h3600.o h3xxx.o
 
 obj-$(CONFIG_SA1100_HACKKIT)		+= hackkit.o
 led-$(CONFIG_SA1100_HACKKIT)		+= leds-hackkit.o
diff --git a/arch/arm/mach-sa1100/h3100.c b/arch/arm/mach-sa1100/h3100.c
new file mode 100644
index 000000000000..4c7778ee57aa
--- /dev/null
+++ b/arch/arm/mach-sa1100/h3100.c
@@ -0,0 +1,119 @@
+/*
+ * Hardware definitions for Compaq iPAQ H3xxx Handheld Computers
+ *
+ * Copyright 2000,1 Compaq Computer Corporation.
+ *
+ * Use consistent with the GNU GPL is permitted,
+ * provided that this copyright notice is
+ * preserved in its entirety in all copies and derived works.
+ *
+ * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
+ * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
+ * FITNESS FOR ANY PARTICULAR PURPOSE.
+ *
+ * Author: Jamey Hicks.
+ *
+ * History:
+ *
+ * 2001-10-??	Andrew Christian   Added support for iPAQ H3800
+ *				   and abstracted EGPIO interface.
+ *
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/pm.h>
+#include <linux/device.h>
+#include <linux/mfd/htc-egpio.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/serial_core.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+
+#include <asm/irq.h>
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/setup.h>
+
+#include <asm/mach/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/irda.h>
+#include <asm/mach/map.h>
+#include <asm/mach/serial_sa1100.h>
+
+#include <mach/h3xxx.h>
+
+#include "generic.h"
+
+/*
+ * helper for sa1100fb
+ */
+static void h3100_lcd_power(int enable)
+{
+	if (!gpio_request(H3XXX_EGPIO_LCD_ON, "LCD ON")) {
+		gpio_set_value(H3100_GPIO_LCD_3V_ON, enable);
+		gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
+		gpio_free(H3XXX_EGPIO_LCD_ON);
+	}
+}
+
+
+static void __init h3100_map_io(void)
+{
+	h3xxx_map_io();
+
+	sa1100fb_lcd_power = h3100_lcd_power;
+
+	/* Older bootldrs put GPIO2-9 in alternate mode on the
+	   assumption that they are used for video */
+	GAFR &= ~0x000001fb;
+}
+
+/*
+ * This turns the IRDA power on or off on the Compaq H3100
+ */
+static int h3100_irda_set_power(struct device *dev, unsigned int state)
+{
+	gpio_set_value(H3100_GPIO_IR_ON, state);
+	return 0;
+}
+
+static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
+{
+	gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
+}
+
+static struct irda_platform_data h3100_irda_data = {
+	.set_power	= h3100_irda_set_power,
+	.set_speed	= h3100_irda_set_speed,
+};
+
+static struct gpio_default_state h3100_default_gpio[] = {
+	{ H3100_GPIO_IR_ON,	GPIO_MODE_OUT0, "IrDA power" },
+	{ H3100_GPIO_IR_FSEL,	GPIO_MODE_OUT0, "IrDA fsel" },
+	{ H3XXX_GPIO_COM_DCD,	GPIO_MODE_IN,	"COM DCD" },
+	{ H3XXX_GPIO_COM_CTS,	GPIO_MODE_IN,	"COM CTS" },
+	{ H3XXX_GPIO_COM_RTS,	GPIO_MODE_OUT0,	"COM RTS" },
+	{ H3100_GPIO_LCD_3V_ON,	GPIO_MODE_OUT0,	"LCD 3v" },
+};
+
+static void __init h3100_mach_init(void)
+{
+	h3xxx_init_gpio(h3100_default_gpio, ARRAY_SIZE(h3100_default_gpio));
+	h3xxx_mach_init();
+	sa11x0_register_irda(&h3100_irda_data);
+}
+
+MACHINE_START(H3100, "Compaq iPAQ H3100")
+	.phys_io	= 0x80000000,
+	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
+	.boot_params	= 0xc0000100,
+	.map_io		= h3100_map_io,
+	.init_irq	= sa1100_init_irq,
+	.timer		= &sa1100_timer,
+	.init_machine	= h3100_mach_init,
+MACHINE_END
+
diff --git a/arch/arm/mach-sa1100/h3600.c b/arch/arm/mach-sa1100/h3600.c
index dd39f90db0db..65ab286a304d 100644
--- a/arch/arm/mach-sa1100/h3600.c
+++ b/arch/arm/mach-sa1100/h3600.c
@@ -48,337 +48,6 @@
 
 #include "generic.h"
 
-struct gpio_default_state {
-	int gpio;
-	int mode;
-	const char *name;
-};
-
-#define GPIO_MODE_IN	-1
-#define GPIO_MODE_OUT0	0
-#define GPIO_MODE_OUT1	1
-
-static void h3xxx_init_gpio(struct gpio_default_state *s, size_t n)
-{
-	while (n--) {
-		const char *name = s->name;
-		int err;
-
-		if (!name)
-			name = "[init]";
-		err = gpio_request(s->gpio, name);
-		if (err) {
-			printk(KERN_ERR "gpio%u: unable to request: %d\n",
-				s->gpio, err);
-			continue;
-		}
-		if (s->mode >= 0) {
-			err = gpio_direction_output(s->gpio, s->mode);
-		} else {
-			err = gpio_direction_input(s->gpio);
-		}
-		if (err) {
-			printk(KERN_ERR "gpio%u: unable to set direction: %d\n",
-				s->gpio, err);
-			continue;
-		}
-		if (!s->name)
-			gpio_free(s->gpio);
-		s++;
-	}
-}
-
-
-/*
- * H3xxx flash support
- */
-static struct mtd_partition h3xxx_partitions[] = {
-	{
-		.name		= "H3XXX boot firmware",
-		.size		= 0x00040000,
-		.offset		= 0,
-		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
-	}, {
-		.name		= "H3XXX rootfs",
-		.size		= MTDPART_SIZ_FULL,
-		.offset		= 0x00040000,
-	}
-};
-
-static void h3xxx_set_vpp(int vpp)
-{
-	gpio_set_value(H3XXX_EGPIO_VPP_ON, vpp);
-}
-
-static int h3xxx_flash_init(void)
-{
-	int err = gpio_request(H3XXX_EGPIO_VPP_ON, "Flash Vpp");
-	if (err)
-		return err;
-
-	err = gpio_direction_output(H3XXX_EGPIO_VPP_ON, 0);
-	if (err)
-		gpio_free(H3XXX_EGPIO_VPP_ON);
-
-	return err;
-}
-
-static void h3xxx_flash_exit(void)
-{
-	gpio_free(H3XXX_EGPIO_VPP_ON);
-}
-
-static struct flash_platform_data h3xxx_flash_data = {
-	.map_name	= "cfi_probe",
-	.set_vpp	= h3xxx_set_vpp,
-	.init		= h3xxx_flash_init,
-	.exit		= h3xxx_flash_exit,
-	.parts		= h3xxx_partitions,
-	.nr_parts	= ARRAY_SIZE(h3xxx_partitions),
-};
-
-static struct resource h3xxx_flash_resource = {
-	.start		= SA1100_CS0_PHYS,
-	.end		= SA1100_CS0_PHYS + SZ_32M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-
-/*
- * H3xxx uart support
- */
-static void h3xxx_uart_set_mctrl(struct uart_port *port, u_int mctrl)
-{
-	if (port->mapbase == _Ser3UTCR0) {
-		gpio_set_value(H3XXX_GPIO_COM_RTS, !(mctrl & TIOCM_RTS));
-	}
-}
-
-static u_int h3xxx_uart_get_mctrl(struct uart_port *port)
-{
-	u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
-
-	if (port->mapbase == _Ser3UTCR0) {
-		/*
-		 * DCD and CTS bits are inverted in GPLR by RS232 transceiver
-		 */
-		if (gpio_get_value(H3XXX_GPIO_COM_DCD))
-			ret &= ~TIOCM_CD;
-		if (gpio_get_value(H3XXX_GPIO_COM_CTS))
-			ret &= ~TIOCM_CTS;
-	}
-
-	return ret;
-}
-
-static void h3xxx_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
-{
-	if (port->mapbase == _Ser3UTCR0)
-		if (!gpio_request(H3XXX_EGPIO_RS232_ON, "RS232 transceiver")) {
-			gpio_direction_output(H3XXX_EGPIO_RS232_ON, !state);
-			gpio_free(H3XXX_EGPIO_RS232_ON);
-		}
-}
-
-/*
- * Enable/Disable wake up events for this serial port.
- * Obviously, we only support this on the normal COM port.
- */
-static int h3xxx_uart_set_wake(struct uart_port *port, u_int enable)
-{
-	int err = -EINVAL;
-
-	if (port->mapbase == _Ser3UTCR0) {
-		if (enable)
-			PWER |= PWER_GPIO23 | PWER_GPIO25; /* DCD and CTS */
-		else
-			PWER &= ~(PWER_GPIO23 | PWER_GPIO25); /* DCD and CTS */
-		err = 0;
-	}
-	return err;
-}
-
-static struct sa1100_port_fns h3xxx_port_fns __initdata = {
-	.set_mctrl	= h3xxx_uart_set_mctrl,
-	.get_mctrl	= h3xxx_uart_get_mctrl,
-	.pm		= h3xxx_uart_pm,
-	.set_wake	= h3xxx_uart_set_wake,
-};
-
-/*
- * EGPIO
- */
-
-static struct resource egpio_resources[] = {
-	[0] = {
-		.start	= H3600_EGPIO_PHYS,
-		.end	= H3600_EGPIO_PHYS + 0x4 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-static struct htc_egpio_chip egpio_chips[] = {
-	[0] = {
-		.reg_start	= 0,
-		.gpio_base	= H3XXX_EGPIO_BASE,
-		.num_gpios	= 16,
-		.direction	= HTC_EGPIO_OUTPUT,
-		.initial_values	= 0x0080, /* H3XXX_EGPIO_RS232_ON */
-	},
-};
-
-static struct htc_egpio_platform_data egpio_info = {
-	.reg_width	= 16,
-	.bus_width	= 16,
-	.chip		= egpio_chips,
-	.num_chips	= ARRAY_SIZE(egpio_chips),
-};
-
-static struct platform_device h3xxx_egpio = {
-	.name		= "htc-egpio",
-	.id		= -1,
-	.resource	= egpio_resources,
-	.num_resources	= ARRAY_SIZE(egpio_resources),
-	.dev		= {
-		.platform_data = &egpio_info,
-	},
-};
-
-static struct platform_device *h3xxx_devices[] = {
-	&h3xxx_egpio,
-};
-
-static void __init h3xxx_mach_init(void)
-{
-	sa1100_register_uart_fns(&h3xxx_port_fns);
-	sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
-	platform_add_devices(h3xxx_devices, ARRAY_SIZE(h3xxx_devices));
-}
-
-static struct map_desc h3600_io_desc[] __initdata = {
-  	{	/* static memory bank 2  CS#2 */
-		.virtual	=  H3600_BANK_2_VIRT,
-		.pfn		= __phys_to_pfn(SA1100_CS2_PHYS),
-		.length		= 0x02800000,
-		.type		= MT_DEVICE
-	}, {	/* static memory bank 4  CS#4 */
-		.virtual	=  H3600_BANK_4_VIRT,
-		.pfn		= __phys_to_pfn(SA1100_CS4_PHYS),
-		.length		= 0x00800000,
-		.type		= MT_DEVICE
-	}, {	/* EGPIO 0		CS#5 */
-		.virtual	=  H3600_EGPIO_VIRT,
-		.pfn		= __phys_to_pfn(H3600_EGPIO_PHYS),
-		.length		= 0x01000000,
-		.type		= MT_DEVICE
-	}
-};
-
-/*
- * Common map_io initialization
- */
-
-static void __init h3xxx_map_io(void)
-{
-	sa1100_map_io();
-	iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc));
-
-	sa1100_register_uart(0, 3); /* Common serial port */
-//	sa1100_register_uart(1, 1); /* Microcontroller on 3100/3600 */
-
-	/* Ensure those pins are outputs and driving low  */
-	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
-	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
-
-	/* Configure suspend conditions */
-	PGSR = 0;
-	PWER = PWER_GPIO0;
-	PCFR = PCFR_OPDE;
-	PSDR = 0;
-
-	GPCR = 0x0fffffff;	/* All outputs are set low by default */
-	GPDR = 0;		/* Configure all GPIOs as input */
-}
-
-/************************* H3100 *************************/
-
-#ifdef CONFIG_SA1100_H3100
-
-/*
- * helper for sa1100fb
- */
-static void h3100_lcd_power(int enable)
-{
-	if (!gpio_request(H3XXX_EGPIO_LCD_ON, "LCD ON")) {
-		gpio_set_value(H3100_GPIO_LCD_3V_ON, enable);
-		gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
-		gpio_free(H3XXX_EGPIO_LCD_ON);
-	}
-}
-
-
-static void __init h3100_map_io(void)
-{
-	h3xxx_map_io();
-
-	sa1100fb_lcd_power = h3100_lcd_power;
-
-	/* Older bootldrs put GPIO2-9 in alternate mode on the
-	   assumption that they are used for video */
-	GAFR &= ~0x000001fb;
-}
-
-/*
- * This turns the IRDA power on or off on the Compaq H3100
- */
-static int h3100_irda_set_power(struct device *dev, unsigned int state)
-{
-	gpio_set_value(H3100_GPIO_IR_ON, state);
-	return 0;
-}
-
-static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
-{
-	gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
-}
-
-static struct irda_platform_data h3100_irda_data = {
-	.set_power	= h3100_irda_set_power,
-	.set_speed	= h3100_irda_set_speed,
-};
-
-static struct gpio_default_state h3100_default_gpio[] = {
-	{ H3100_GPIO_IR_ON,	GPIO_MODE_OUT0, "IrDA power" },
-	{ H3100_GPIO_IR_FSEL,	GPIO_MODE_OUT0, "IrDA fsel" },
-	{ H3XXX_GPIO_COM_DCD,	GPIO_MODE_IN,	"COM DCD" },
-	{ H3XXX_GPIO_COM_CTS,	GPIO_MODE_IN,	"COM CTS" },
-	{ H3XXX_GPIO_COM_RTS,	GPIO_MODE_OUT0,	"COM RTS" },
-	{ H3100_GPIO_LCD_3V_ON,	GPIO_MODE_OUT0,	"LCD 3v" },
-};
-
-static void __init h3100_mach_init(void)
-{
-	h3xxx_init_gpio(h3100_default_gpio, ARRAY_SIZE(h3100_default_gpio));
-	h3xxx_mach_init();
-	sa11x0_register_irda(&h3100_irda_data);
-}
-
-MACHINE_START(H3100, "Compaq iPAQ H3100")
-	.phys_io	= 0x80000000,
-	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
-	.boot_params	= 0xc0000100,
-	.map_io		= h3100_map_io,
-	.init_irq	= sa1100_init_irq,
-	.timer		= &sa1100_timer,
-	.init_machine	= h3100_mach_init,
-MACHINE_END
-
-#endif /* CONFIG_SA1100_H3100 */
-
-/************************* H3600 *************************/
-
-#ifdef CONFIG_SA1100_H3600
-
 /*
  * helper for sa1100fb
  */
@@ -483,5 +152,3 @@ MACHINE_START(H3600, "Compaq iPAQ H3600")
 	.init_machine	= h3600_mach_init,
 MACHINE_END
 
-#endif /* CONFIG_SA1100_H3600 */
-
diff --git a/arch/arm/mach-sa1100/h3xxx.c b/arch/arm/mach-sa1100/h3xxx.c
new file mode 100644
index 000000000000..bb608d437ff8
--- /dev/null
+++ b/arch/arm/mach-sa1100/h3xxx.c
@@ -0,0 +1,292 @@
+/*
+ * Hardware definitions for Compaq iPAQ H3xxx Handheld Computers
+ *
+ * Copyright 2000,1 Compaq Computer Corporation.
+ *
+ * Use consistent with the GNU GPL is permitted,
+ * provided that this copyright notice is
+ * preserved in its entirety in all copies and derived works.
+ *
+ * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
+ * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
+ * FITNESS FOR ANY PARTICULAR PURPOSE.
+ *
+ * Author: Jamey Hicks.
+ *
+ * History:
+ *
+ * 2001-10-??	Andrew Christian   Added support for iPAQ H3800
+ *				   and abstracted EGPIO interface.
+ *
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/pm.h>
+#include <linux/device.h>
+#include <linux/mfd/htc-egpio.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/serial_core.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+
+#include <asm/irq.h>
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/setup.h>
+
+#include <asm/mach/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/irda.h>
+#include <asm/mach/map.h>
+#include <asm/mach/serial_sa1100.h>
+
+#include <mach/h3xxx.h>
+
+#include "generic.h"
+
+void h3xxx_init_gpio(struct gpio_default_state *s, size_t n)
+{
+	while (n--) {
+		const char *name = s->name;
+		int err;
+
+		if (!name)
+			name = "[init]";
+		err = gpio_request(s->gpio, name);
+		if (err) {
+			printk(KERN_ERR "gpio%u: unable to request: %d\n",
+				s->gpio, err);
+			continue;
+		}
+		if (s->mode >= 0) {
+			err = gpio_direction_output(s->gpio, s->mode);
+		} else {
+			err = gpio_direction_input(s->gpio);
+		}
+		if (err) {
+			printk(KERN_ERR "gpio%u: unable to set direction: %d\n",
+				s->gpio, err);
+			continue;
+		}
+		if (!s->name)
+			gpio_free(s->gpio);
+		s++;
+	}
+}
+
+
+/*
+ * H3xxx flash support
+ */
+static struct mtd_partition h3xxx_partitions[] = {
+	{
+		.name		= "H3XXX boot firmware",
+		.size		= 0x00040000,
+		.offset		= 0,
+		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
+	}, {
+		.name		= "H3XXX rootfs",
+		.size		= MTDPART_SIZ_FULL,
+		.offset		= 0x00040000,
+	}
+};
+
+static void h3xxx_set_vpp(int vpp)
+{
+	gpio_set_value(H3XXX_EGPIO_VPP_ON, vpp);
+}
+
+static int h3xxx_flash_init(void)
+{
+	int err = gpio_request(H3XXX_EGPIO_VPP_ON, "Flash Vpp");
+	if (err)
+		return err;
+
+	err = gpio_direction_output(H3XXX_EGPIO_VPP_ON, 0);
+	if (err)
+		gpio_free(H3XXX_EGPIO_VPP_ON);
+
+	return err;
+}
+
+static void h3xxx_flash_exit(void)
+{
+	gpio_free(H3XXX_EGPIO_VPP_ON);
+}
+
+static struct flash_platform_data h3xxx_flash_data = {
+	.map_name	= "cfi_probe",
+	.set_vpp	= h3xxx_set_vpp,
+	.init		= h3xxx_flash_init,
+	.exit		= h3xxx_flash_exit,
+	.parts		= h3xxx_partitions,
+	.nr_parts	= ARRAY_SIZE(h3xxx_partitions),
+};
+
+static struct resource h3xxx_flash_resource = {
+	.start		= SA1100_CS0_PHYS,
+	.end		= SA1100_CS0_PHYS + SZ_32M - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+
+/*
+ * H3xxx uart support
+ */
+static void h3xxx_uart_set_mctrl(struct uart_port *port, u_int mctrl)
+{
+	if (port->mapbase == _Ser3UTCR0) {
+		gpio_set_value(H3XXX_GPIO_COM_RTS, !(mctrl & TIOCM_RTS));
+	}
+}
+
+static u_int h3xxx_uart_get_mctrl(struct uart_port *port)
+{
+	u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
+
+	if (port->mapbase == _Ser3UTCR0) {
+		/*
+		 * DCD and CTS bits are inverted in GPLR by RS232 transceiver
+		 */
+		if (gpio_get_value(H3XXX_GPIO_COM_DCD))
+			ret &= ~TIOCM_CD;
+		if (gpio_get_value(H3XXX_GPIO_COM_CTS))
+			ret &= ~TIOCM_CTS;
+	}
+
+	return ret;
+}
+
+static void h3xxx_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
+{
+	if (port->mapbase == _Ser3UTCR0)
+		if (!gpio_request(H3XXX_EGPIO_RS232_ON, "RS232 transceiver")) {
+			gpio_direction_output(H3XXX_EGPIO_RS232_ON, !state);
+			gpio_free(H3XXX_EGPIO_RS232_ON);
+		}
+}
+
+/*
+ * Enable/Disable wake up events for this serial port.
+ * Obviously, we only support this on the normal COM port.
+ */
+static int h3xxx_uart_set_wake(struct uart_port *port, u_int enable)
+{
+	int err = -EINVAL;
+
+	if (port->mapbase == _Ser3UTCR0) {
+		if (enable)
+			PWER |= PWER_GPIO23 | PWER_GPIO25; /* DCD and CTS */
+		else
+			PWER &= ~(PWER_GPIO23 | PWER_GPIO25); /* DCD and CTS */
+		err = 0;
+	}
+	return err;
+}
+
+static struct sa1100_port_fns h3xxx_port_fns __initdata = {
+	.set_mctrl	= h3xxx_uart_set_mctrl,
+	.get_mctrl	= h3xxx_uart_get_mctrl,
+	.pm		= h3xxx_uart_pm,
+	.set_wake	= h3xxx_uart_set_wake,
+};
+
+/*
+ * EGPIO
+ */
+
+static struct resource egpio_resources[] = {
+	[0] = {
+		.start	= H3600_EGPIO_PHYS,
+		.end	= H3600_EGPIO_PHYS + 0x4 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct htc_egpio_chip egpio_chips[] = {
+	[0] = {
+		.reg_start	= 0,
+		.gpio_base	= H3XXX_EGPIO_BASE,
+		.num_gpios	= 16,
+		.direction	= HTC_EGPIO_OUTPUT,
+		.initial_values	= 0x0080, /* H3XXX_EGPIO_RS232_ON */
+	},
+};
+
+static struct htc_egpio_platform_data egpio_info = {
+	.reg_width	= 16,
+	.bus_width	= 16,
+	.chip		= egpio_chips,
+	.num_chips	= ARRAY_SIZE(egpio_chips),
+};
+
+static struct platform_device h3xxx_egpio = {
+	.name		= "htc-egpio",
+	.id		= -1,
+	.resource	= egpio_resources,
+	.num_resources	= ARRAY_SIZE(egpio_resources),
+	.dev		= {
+		.platform_data = &egpio_info,
+	},
+};
+
+static struct platform_device *h3xxx_devices[] = {
+	&h3xxx_egpio,
+};
+
+void __init h3xxx_mach_init(void)
+{
+	sa1100_register_uart_fns(&h3xxx_port_fns);
+	sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
+	platform_add_devices(h3xxx_devices, ARRAY_SIZE(h3xxx_devices));
+}
+
+static struct map_desc h3600_io_desc[] __initdata = {
+	{	/* static memory bank 2  CS#2 */
+		.virtual	=  H3600_BANK_2_VIRT,
+		.pfn		= __phys_to_pfn(SA1100_CS2_PHYS),
+		.length		= 0x02800000,
+		.type		= MT_DEVICE
+	}, {	/* static memory bank 4  CS#4 */
+		.virtual	=  H3600_BANK_4_VIRT,
+		.pfn		= __phys_to_pfn(SA1100_CS4_PHYS),
+		.length		= 0x00800000,
+		.type		= MT_DEVICE
+	}, {	/* EGPIO 0		CS#5 */
+		.virtual	=  H3600_EGPIO_VIRT,
+		.pfn		= __phys_to_pfn(H3600_EGPIO_PHYS),
+		.length		= 0x01000000,
+		.type		= MT_DEVICE
+	}
+};
+
+/*
+ * Common map_io initialization
+ */
+
+void __init h3xxx_map_io(void)
+{
+	sa1100_map_io();
+	iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc));
+
+	sa1100_register_uart(0, 3); /* Common serial port */
+//	sa1100_register_uart(1, 1); /* Microcontroller on 3100/3600 */
+
+	/* Ensure those pins are outputs and driving low  */
+	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
+	/* Configure suspend conditions */
+	PGSR = 0;
+	PWER = PWER_GPIO0;
+	PCFR = PCFR_OPDE;
+	PSDR = 0;
+
+	GPCR = 0x0fffffff;	/* All outputs are set low by default */
+	GPDR = 0;		/* Configure all GPIOs as input */
+}
+
diff --git a/arch/arm/mach-sa1100/include/mach/h3xxx.h b/arch/arm/mach-sa1100/include/mach/h3xxx.h
index 7f1e130be949..d8a6e7cee676 100644
--- a/arch/arm/mach-sa1100/include/mach/h3xxx.h
+++ b/arch/arm/mach-sa1100/include/mach/h3xxx.h
@@ -87,4 +87,18 @@
 #define H3600_EGPIO_LCD_5V_ON		(H3XXX_EGPIO_BASE + 14) /* enable 5V to LCD. active high. */
 #define H3600_EGPIO_LVDD_ON		(H3XXX_EGPIO_BASE + 15) /* enable 9V and -6.5V to LCD. */
 
+struct gpio_default_state {
+	int gpio;
+	int mode;
+	const char *name;
+};
+
+#define GPIO_MODE_IN	-1
+#define GPIO_MODE_OUT0	0
+#define GPIO_MODE_OUT1	1
+
+void h3xxx_init_gpio(struct gpio_default_state *s, size_t n);
+void __init h3xxx_map_io(void);
+void __init h3xxx_mach_init(void);
+
 #endif /* _INCLUDE_H3XXX_H_ */