[ARM] pxa: add basic support for HP iPAQ hx4700 PDAs

This includes
- IrDA (pxafixp_ir),
- Buttons (gpio-keys),
- ASIC3 IRQ/GPIOs (asic3),
- EGPIOs (htc-egpio),
- ATI Imageon w3220 framebuffer (w100fb),
- Backlight (pwm-backlight),
- StrataFlash (physmap),
- Battery monitor (ds1wm,w1_ds2760,ds2760_battery)
- USB gadget support (pxa27x_udc,gpio_vbus).
- bq24022 battery charger (pda_power,bq24022)
- TSC2046 touchscreen (ads7846)

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>

1 files changed, 851 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
new file mode 100644
index 0000000..0f65680
--- /dev/null
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -0,0 +1,851 @@
+/*
+ * Support for HP iPAQ hx4700 PDAs.
+ *
+ * Copyright (c) 2008-2009 Philipp Zabel
+ *
+ * Based on code:
+ *    Copyright (c) 2004 Hewlett-Packard Company.
+ *    Copyright (c) 2005 SDG Systems, LLC
+ *    Copyright (c) 2006 Anton Vorontsov <cbou@mail.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/lcd.h>
+#include <linux/mfd/htc-egpio.h>
+#include <linux/mfd/asic3.h>
+#include <linux/mtd/physmap.h>
+#include <linux/pda_power.h>
+#include <linux/pwm_backlight.h>
+#include <linux/regulator/bq24022.h>
+#include <linux/regulator/machine.h>
+#include <linux/spi/ads7846.h>
+#include <linux/spi/spi.h>
+#include <linux/usb/gpio_vbus.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <mach/pxa27x.h>
+#include <mach/hx4700.h>
+#include <plat/i2c.h>
+#include <mach/irda.h>
+#include <mach/pxa2xx_spi.h>
+
+#include <video/w100fb.h>
+
+#include "devices.h"
+#include "generic.h"
+
+/* Physical address space information */
+
+#define ATI_W3220_PHYS  PXA_CS2_PHYS /* ATI Imageon 3220 Graphics */
+#define ASIC3_PHYS      PXA_CS3_PHYS
+#define ASIC3_SD_PHYS   (PXA_CS3_PHYS + 0x02000000)
+
+static unsigned long hx4700_pin_config[] __initdata = {
+
+	/* SDRAM and Static Memory I/O Signals */
+	GPIO20_nSDCS_2,
+	GPIO21_nSDCS_3,
+	GPIO15_nCS_1,
+	GPIO78_nCS_2,   /* W3220 */
+	GPIO79_nCS_3,   /* ASIC3 */
+	GPIO80_nCS_4,
+	GPIO33_nCS_5,	/* EGPIO, WLAN */
+
+	/* PC CARD */
+	GPIO48_nPOE,
+	GPIO49_nPWE,
+	GPIO50_nPIOR,
+	GPIO51_nPIOW,
+	GPIO54_nPCE_2,
+	GPIO55_nPREG,
+	GPIO56_nPWAIT,
+	GPIO57_nIOIS16,
+	GPIO85_nPCE_1,
+	GPIO104_PSKTSEL,
+
+	/* I2C */
+	GPIO117_I2C_SCL,
+	GPIO118_I2C_SDA,
+
+	/* FFUART (RS-232) */
+	GPIO34_FFUART_RXD,
+	GPIO35_FFUART_CTS,
+	GPIO36_FFUART_DCD,
+	GPIO37_FFUART_DSR,
+	GPIO38_FFUART_RI,
+	GPIO39_FFUART_TXD,
+	GPIO40_FFUART_DTR,
+	GPIO41_FFUART_RTS,
+
+	/* BTUART */
+	GPIO42_BTUART_RXD,
+	GPIO43_BTUART_TXD,
+	GPIO44_BTUART_CTS,
+	GPIO45_BTUART_RTS,
+
+	/* PWM 1 (Backlight) */
+	GPIO17_PWM1_OUT,
+
+	/* I2S */
+	GPIO28_I2S_BITCLK_OUT,
+	GPIO29_I2S_SDATA_IN,
+	GPIO30_I2S_SDATA_OUT,
+	GPIO31_I2S_SYNC,
+	GPIO113_I2S_SYSCLK,
+
+	/* SSP 1 (NavPoint) */
+	GPIO23_SSP1_SCLK,
+	GPIO24_SSP1_SFRM,
+	GPIO25_SSP1_TXD,
+	GPIO26_SSP1_RXD,
+
+	/* SSP 2 (TSC2046) */
+	GPIO19_SSP2_SCLK,
+	GPIO86_SSP2_RXD,
+	GPIO87_SSP2_TXD,
+	GPIO88_GPIO,
+
+	/* HX4700 specific input GPIOs */
+	GPIO12_GPIO,	/* ASIC3_IRQ */
+	GPIO13_GPIO,	/* W3220_IRQ */
+	GPIO14_GPIO,	/* nWLAN_IRQ */
+
+	GPIO10_GPIO,	/* GSM_IRQ */
+	GPIO13_GPIO,	/* CPLD_IRQ */
+	GPIO107_GPIO,	/* DS1WM_IRQ */
+	GPIO108_GPIO,	/* GSM_READY */
+	GPIO58_GPIO,	/* TSC2046_nPENIRQ */
+	GPIO66_GPIO,	/* nSDIO_IRQ */
+};
+
+#define HX4700_GPIO_IN(num, _desc) \
+	{ .gpio = (num), .dir = 0, .desc = (_desc) }
+#define HX4700_GPIO_OUT(num, _init, _desc) \
+	{ .gpio = (num), .dir = 1, .init = (_init), .desc = (_desc) }
+struct gpio_ress {
+	unsigned gpio : 8;
+	unsigned dir : 1;
+	unsigned init : 1;
+	char *desc;
+};
+
+static int hx4700_gpio_request(struct gpio_ress *gpios, int size)
+{
+	int i, rc = 0;
+	int gpio;
+	int dir;
+
+	for (i = 0; (!rc) && (i < size); i++) {
+		gpio = gpios[i].gpio;
+		dir = gpios[i].dir;
+		rc = gpio_request(gpio, gpios[i].desc);
+		if (rc) {
+			pr_err("Error requesting GPIO %d(%s) : %d\n",
+			       gpio, gpios[i].desc, rc);
+			continue;
+		}
+		if (dir)
+			gpio_direction_output(gpio, gpios[i].init);
+		else
+			gpio_direction_input(gpio);
+	}
+	while ((rc) && (--i >= 0))
+		gpio_free(gpios[i].gpio);
+	return rc;
+}
+
+/*
+ * IRDA
+ */
+
+static void irda_transceiver_mode(struct device *dev, int mode)
+{
+	gpio_set_value(GPIO105_HX4700_nIR_ON, mode & IR_OFF);
+}
+
+static struct pxaficp_platform_data ficp_info = {
+	.transceiver_cap  = IR_SIRMODE | IR_OFF,
+	.transceiver_mode = irda_transceiver_mode,
+};
+
+/*
+ * GPIO Keys
+ */
+
+#define INIT_KEY(_code, _gpio, _active_low, _desc)	\
+	{						\
+		.code       = KEY_##_code,		\
+		.gpio       = _gpio,			\
+		.active_low = _active_low,		\
+		.desc       = _desc,			\
+		.type       = EV_KEY,			\
+		.wakeup     = 1,			\
+	}
+
+static struct gpio_keys_button gpio_keys_buttons[] = {
+	INIT_KEY(POWER,       GPIO0_HX4700_nKEY_POWER,   1, "Power button"),
+	INIT_KEY(MAIL,        GPIO94_HX4700_KEY_MAIL,    0, "Mail button"),
+	INIT_KEY(ADDRESSBOOK, GPIO99_HX4700_KEY_CONTACTS,0, "Contacts button"),
+	INIT_KEY(RECORD,      GPIOD6_nKEY_RECORD,        1, "Record button"),
+	INIT_KEY(CALENDAR,    GPIOD1_nKEY_CALENDAR,      1, "Calendar button"),
+	INIT_KEY(HOMEPAGE,    GPIOD3_nKEY_HOME,          1, "Home button"),
+};
+
+static struct gpio_keys_platform_data gpio_keys_data = {
+	.buttons = gpio_keys_buttons,
+	.nbuttons = ARRAY_SIZE(gpio_keys_buttons),
+};
+
+static struct platform_device gpio_keys = {
+	.name = "gpio-keys",
+	.dev  = {
+		.platform_data = &gpio_keys_data,
+	},
+	.id   = -1,
+};
+
+/*
+ * ASIC3
+ */
+
+static u16 asic3_gpio_config[] = {
+	/* ASIC3 GPIO banks A and B along with some of C and D
+	   implement the buffering for the CF slot. */
+	ASIC3_CONFIG_GPIO(0, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(1, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(2, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(3, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(4, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(5, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(6, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(7, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(8, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(9, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(10, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(11, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(12, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(13, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(14, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(15, 1, 1, 0),
+
+	ASIC3_CONFIG_GPIO(16, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(17, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(18, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(19, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(20, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(21, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(22, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(23, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(24, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(25, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(26, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(27, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(28, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(29, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(30, 1, 1, 0),
+	ASIC3_CONFIG_GPIO(31, 1, 1, 0),
+
+	/* GPIOC - CF, LEDs, SD */
+	ASIC3_GPIOC0_LED0,		/* red */
+	ASIC3_GPIOC1_LED1,		/* green */
+	ASIC3_GPIOC2_LED2,		/* blue */
+	ASIC3_GPIOC4_CF_nCD,
+	ASIC3_GPIOC5_nCIOW,
+	ASIC3_GPIOC6_nCIOR,
+	ASIC3_GPIOC7_nPCE_1,
+	ASIC3_GPIOC8_nPCE_2,
+	ASIC3_GPIOC9_nPOE,
+	ASIC3_GPIOC10_nPWE,
+	ASIC3_GPIOC11_PSKTSEL,
+	ASIC3_GPIOC12_nPREG,
+	ASIC3_GPIOC13_nPWAIT,
+	ASIC3_GPIOC14_nPIOIS16,
+	ASIC3_GPIOC15_nPIOR,
+
+	/* GPIOD: input GPIOs, CF */
+	ASIC3_GPIOD11_nCIOIS16,
+	ASIC3_GPIOD12_nCWAIT,
+	ASIC3_GPIOD15_nPIOW,
+};
+
+static struct resource asic3_resources[] = {
+	/* GPIO part */
+	[0] = {
+		.start	= ASIC3_PHYS,
+		.end	= ASIC3_PHYS + ASIC3_MAP_SIZE_16BIT - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= gpio_to_irq(GPIO12_HX4700_ASIC3_IRQ),
+		.end	= gpio_to_irq(GPIO12_HX4700_ASIC3_IRQ),
+		.flags	= IORESOURCE_IRQ,
+	},
+	/* SD part */
+	[2] = {
+		.start	= ASIC3_SD_PHYS,
+		.end	= ASIC3_SD_PHYS + ASIC3_MAP_SIZE_16BIT - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[3] = {
+		.start	= gpio_to_irq(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
+		.end	= gpio_to_irq(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct asic3_platform_data asic3_platform_data = {
+	.gpio_config     = asic3_gpio_config,
+	.gpio_config_num = ARRAY_SIZE(asic3_gpio_config),
+	.irq_base        = IRQ_BOARD_START,
+	.gpio_base       = HX4700_ASIC3_GPIO_BASE,
+};
+
+static struct platform_device asic3 = {
+	.name          = "asic3",
+	.id            = -1,
+	.resource      = asic3_resources,
+	.num_resources = ARRAY_SIZE(asic3_resources),
+	.dev = {
+		.platform_data = &asic3_platform_data,
+	},
+};
+
+/*
+ * EGPIO
+ */
+
+static struct resource egpio_resources[] = {
+	[0] = {
+		.start = PXA_CS5_PHYS,
+		.end   = PXA_CS5_PHYS + 0x4 - 1,
+		.flags = IORESOURCE_MEM,
+	},
+};
+
+static struct htc_egpio_chip egpio_chips[] = {
+	[0] = {
+		.reg_start = 0,
+		.gpio_base = HX4700_EGPIO_BASE,
+		.num_gpios = 8,
+		.direction = HTC_EGPIO_OUTPUT,
+	},
+};
+
+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 egpio = {
+	.name          = "htc-egpio",
+	.id            = -1,
+	.resource      = egpio_resources,
+	.num_resources = ARRAY_SIZE(egpio_resources),
+	.dev = {
+		.platform_data = &egpio_info,
+	},
+};
+
+/*
+ * LCD - Sony display connected to ATI Imageon w3220
+ */
+
+static int lcd_power;
+
+static void sony_lcd_init(void)
+{
+	gpio_set_value(GPIO84_HX4700_LCD_SQN, 1);
+	gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
+	gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
+	gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 0);
+	gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
+	mdelay(10);
+	gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
+	gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
+	mdelay(20);
+
+	gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 1);
+	mdelay(5);
+	gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 1);
+
+	/* FIXME: init w3220 registers here */
+
+	mdelay(5);
+	gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 1);
+	mdelay(10);
+	gpio_set_value(GPIO62_HX4700_LCD_nRESET, 1);
+	mdelay(10);
+	gpio_set_value(GPIO59_HX4700_LCD_PC1, 1);
+	mdelay(10);
+	gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 1);
+}
+
+static void sony_lcd_off(void)
+{
+	gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
+	gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
+	mdelay(10);
+	gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 0);
+	mdelay(10);
+	gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
+	mdelay(10);
+	gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
+}
+
+static int hx4700_lcd_set_power(struct lcd_device *ldev, int level)
+{
+	switch (level) {
+	case FB_BLANK_UNBLANK:
+		sony_lcd_init();
+		break;
+	case FB_BLANK_NORMAL:
+	case FB_BLANK_VSYNC_SUSPEND:
+	case FB_BLANK_HSYNC_SUSPEND:
+	case FB_BLANK_POWERDOWN:
+		sony_lcd_off();
+		break;
+	}
+	lcd_power = level;
+	return 0;
+}
+
+static int hx4700_lcd_get_power(struct lcd_device *lm)
+{
+	return lcd_power;
+}
+
+static struct lcd_ops hx4700_lcd_ops = {
+	.get_power = hx4700_lcd_get_power,
+	.set_power = hx4700_lcd_set_power,
+};
+
+static struct lcd_device *hx4700_lcd_device;
+
+#ifdef CONFIG_PM
+static void w3220_lcd_suspend(struct w100fb_par *wfb)
+{
+	sony_lcd_off();
+}
+
+static void w3220_lcd_resume(struct w100fb_par *wfb)
+{
+	sony_lcd_init();
+}
+#else
+#define w3220_lcd_resume	NULL
+#define w3220_lcd_suspend	NULL
+#endif
+
+static struct w100_tg_info w3220_tg_info = {
+	.suspend	= w3220_lcd_suspend,
+	.resume		= w3220_lcd_resume,
+};
+
+/*  				 W3220_VGA		QVGA */
+static struct w100_gen_regs w3220_regs = {
+	.lcd_format =        0x00000003,
+	.lcdd_cntl1 =        0x00000000,
+	.lcdd_cntl2 =        0x0003ffff,
+	.genlcd_cntl1 =      0x00abf003,	/* 0x00fff003 */
+	.genlcd_cntl2 =      0x00000003,
+	.genlcd_cntl3 =      0x000102aa,
+};
+
+static struct w100_mode w3220_modes[] = {
+{
+	.xres 		= 480,
+	.yres 		= 640,
+	.left_margin 	= 15,
+	.right_margin 	= 16,
+	.upper_margin 	= 8,
+	.lower_margin 	= 7,
+	.crtc_ss	= 0x00000000,
+	.crtc_ls	= 0xa1ff01f9,	/* 0x21ff01f9 */
+	.crtc_gs	= 0xc0000000,	/* 0x40000000 */
+	.crtc_vpos_gs	= 0x0000028f,
+	.crtc_ps1_active = 0x00000000,	/* 0x41060010 */
+	.crtc_rev	= 0,
+	.crtc_dclk	= 0x80000000,
+	.crtc_gclk	= 0x040a0104,
+	.crtc_goe	= 0,
+	.pll_freq 	= 95,
+	.pixclk_divider = 4,
+	.pixclk_divider_rotated = 4,
+	.pixclk_src     = CLK_SRC_PLL,
+	.sysclk_divider = 0,
+	.sysclk_src     = CLK_SRC_PLL,
+},
+{
+	.xres 		= 240,
+	.yres 		= 320,
+	.left_margin 	= 9,
+	.right_margin 	= 8,
+	.upper_margin 	= 5,
+	.lower_margin 	= 4,
+	.crtc_ss	= 0x80150014,
+	.crtc_ls        = 0xa0fb00f7,
+	.crtc_gs	= 0xc0080007,
+	.crtc_vpos_gs	= 0x00080007,
+	.crtc_rev	= 0x0000000a,
+	.crtc_dclk	= 0x81700030,
+	.crtc_gclk	= 0x8015010f,
+	.crtc_goe	= 0x00000000,
+	.pll_freq 	= 95,
+	.pixclk_divider = 4,
+	.pixclk_divider_rotated = 4,
+	.pixclk_src     = CLK_SRC_PLL,
+	.sysclk_divider = 0,
+	.sysclk_src     = CLK_SRC_PLL,
+},
+};
+
+struct w100_mem_info w3220_mem_info = {
+	.ext_cntl        = 0x09640011,
+	.sdram_mode_reg  = 0x00600021,
+	.ext_timing_cntl = 0x1a001545,	/* 0x15001545 */
+	.io_cntl         = 0x7ddd7333,
+	.size            = 0x1fffff,
+};
+
+struct w100_bm_mem_info w3220_bm_mem_info = {
+	.ext_mem_bw = 0x50413e01,
+	.offset = 0,
+	.ext_timing_ctl = 0x00043f7f,
+	.ext_cntl = 0x00000010,
+	.mode_reg = 0x00250000,
+	.io_cntl = 0x0fff0000,
+	.config = 0x08301480,
+};
+
+static struct w100_gpio_regs w3220_gpio_info = {
+	.init_data1 = 0xdfe00100,	/* GPIO_DATA */
+	.gpio_dir1  = 0xffff0000,	/* GPIO_CNTL1 */
+	.gpio_oe1   = 0x00000000,	/* GPIO_CNTL2 */
+	.init_data2 = 0x00000000,	/* GPIO_DATA2 */
+	.gpio_dir2  = 0x00000000,	/* GPIO_CNTL3 */
+	.gpio_oe2   = 0x00000000,	/* GPIO_CNTL4 */
+};
+
+static struct w100fb_mach_info w3220_info = {
+	.tg        = &w3220_tg_info,
+	.mem       = &w3220_mem_info,
+	.bm_mem    = &w3220_bm_mem_info,
+	.gpio      = &w3220_gpio_info,
+	.regs      = &w3220_regs,
+	.modelist  = w3220_modes,
+	.num_modes = 2,
+	.xtal_freq = 16000000,
+};
+
+static struct resource w3220_resources[] = {
+	[0] = {
+		.start	= ATI_W3220_PHYS,
+		.end	= ATI_W3220_PHYS + 0x00ffffff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device w3220 = {
+	.name	= "w100fb",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &w3220_info,
+	},
+	.num_resources = ARRAY_SIZE(w3220_resources),
+	.resource      = w3220_resources,
+};
+
+/*
+ * Backlight
+ */
+
+static struct platform_pwm_backlight_data backlight_data = {
+	.pwm_id         = 1,
+	.max_brightness = 200,
+	.dft_brightness = 100,
+	.pwm_period_ns  = 30923,
+};
+
+static struct platform_device backlight = {
+	.name = "pwm-backlight",
+	.id   = -1,
+	.dev  = {
+		.parent        = &pxa27x_device_pwm1.dev,
+		.platform_data = &backlight_data,
+	},
+};
+
+/*
+ * USB "Transceiver"
+ */
+
+static struct gpio_vbus_mach_info gpio_vbus_info = {
+	.gpio_pullup        = GPIO76_HX4700_USBC_PUEN,
+	.gpio_vbus          = GPIOD14_nUSBC_DETECT,
+	.gpio_vbus_inverted = 1,
+};
+
+static struct platform_device gpio_vbus = {
+	.name          = "gpio-vbus",
+	.id            = -1,
+	.dev = {
+		.platform_data = &gpio_vbus_info,
+	},
+};
+
+/*
+ * Touchscreen - TSC2046 connected to SSP2
+ */
+
+static const struct ads7846_platform_data tsc2046_info = {
+	.model            = 7846,
+	.vref_delay_usecs = 100,
+	.pressure_max     = 512,
+	.debounce_max     = 10,
+	.debounce_tol     = 3,
+	.debounce_rep     = 1,
+	.gpio_pendown     = GPIO58_HX4700_TSC2046_nPENIRQ,
+};
+
+static struct pxa2xx_spi_chip tsc2046_chip = {
+	.tx_threshold = 1,
+	.rx_threshold = 2,
+	.timeout      = 64,
+	.gpio_cs      = GPIO88_HX4700_TSC2046_CS,
+};
+
+static struct spi_board_info tsc2046_board_info[] __initdata = {
+	{
+		.modalias        = "ads7846",
+		.bus_num         = 2,
+		.max_speed_hz    = 2600000, /* 100 kHz sample rate */
+		.irq             = gpio_to_irq(GPIO58_HX4700_TSC2046_nPENIRQ),
+		.platform_data   = &tsc2046_info,
+		.controller_data = &tsc2046_chip,
+	},
+};
+
+static struct pxa2xx_spi_master pxa_ssp2_master_info = {
+	.num_chipselect = 1,
+	.clock_enable   = CKEN_SSP2,
+	.enable_dma     = 1,
+};
+
+/*
+ * External power
+ */
+
+static int power_supply_init(struct device *dev)
+{
+	return gpio_request(GPIOD9_nAC_IN, "AC charger detect");
+}
+
+static int hx4700_is_ac_online(void)
+{
+	return !gpio_get_value(GPIOD9_nAC_IN);
+}
+
+static void power_supply_exit(struct device *dev)
+{
+	gpio_free(GPIOD9_nAC_IN);
+}
+
+static char *hx4700_supplicants[] = {
+	"ds2760-battery.0", "backup-battery"
+};
+
+static struct pda_power_pdata power_supply_info = {
+	.init            = power_supply_init,
+	.is_ac_online    = hx4700_is_ac_online,
+	.exit            = power_supply_exit,
+	.supplied_to     = hx4700_supplicants,
+	.num_supplicants = ARRAY_SIZE(hx4700_supplicants),
+};
+
+static struct resource power_supply_resources[] = {
+	[0] = {
+		.name  = "ac",
+		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
+		         IORESOURCE_IRQ_LOWEDGE,
+		.start = gpio_to_irq(GPIOD9_nAC_IN),
+		.end   = gpio_to_irq(GPIOD9_nAC_IN),
+	},
+	[1] = {
+		.name  = "usb",
+		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
+		         IORESOURCE_IRQ_LOWEDGE,
+		.start = gpio_to_irq(GPIOD14_nUSBC_DETECT),
+		.end   = gpio_to_irq(GPIOD14_nUSBC_DETECT),
+	},
+};
+
+static struct platform_device power_supply = {
+	.name = "pda-power",
+	.id   = -1,
+	.dev  = {
+		.platform_data = &power_supply_info,
+	},
+	.resource      = power_supply_resources,
+	.num_resources = ARRAY_SIZE(power_supply_resources),
+};
+
+/*
+ * Battery charger
+ */
+
+static struct regulator_consumer_supply bq24022_consumers[] = {
+	{
+		.dev = &gpio_vbus.dev,
+		.supply = "vbus_draw",
+	},
+	{
+		.dev = &power_supply.dev,
+		.supply = "ac_draw",
+	},
+};
+
+static struct regulator_init_data bq24022_init_data = {
+	.constraints = {
+		.max_uA         = 500000,
+		.valid_ops_mask = REGULATOR_CHANGE_CURRENT,
+	},
+	.num_consumer_supplies  = ARRAY_SIZE(bq24022_consumers),
+	.consumer_supplies      = bq24022_consumers,
+};
+
+static struct bq24022_mach_info bq24022_info = {
+	.gpio_nce   = GPIO72_HX4700_BQ24022_nCHARGE_EN,
+	.gpio_iset2 = GPIO96_HX4700_BQ24022_ISET2,
+	.init_data  = &bq24022_init_data,
+};
+
+static struct platform_device bq24022 = {
+	.name = "bq24022",
+	.id   = -1,
+	.dev  = {
+		.platform_data = &bq24022_info,
+	},
+};
+
+/*
+ * StrataFlash
+ */
+
+static void hx4700_set_vpp(struct map_info *map, int vpp)
+{
+	gpio_set_value(GPIO91_HX4700_FLASH_VPEN, vpp);
+}
+
+static struct resource strataflash_resource = {
+	.start = PXA_CS0_PHYS,
+	.end   = PXA_CS0_PHYS + SZ_128M - 1,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct physmap_flash_data strataflash_data = {
+	.width = 4,
+	.set_vpp = hx4700_set_vpp,
+};
+
+static struct platform_device strataflash = {
+	.name          = "physmap-flash",
+	.id            = -1,
+	.resource      = &strataflash_resource,
+	.num_resources = 1,
+	.dev = {
+		.platform_data = &strataflash_data,
+	},
+};
+
+/*
+ * PCMCIA
+ */
+
+static struct platform_device pcmcia = {
+	.name = "hx4700-pcmcia",
+	.dev  = {
+		.parent = &asic3.dev,
+	},
+};
+
+/*
+ * Platform devices
+ */
+
+static struct platform_device *devices[] __initdata = {
+	&asic3,
+	&gpio_keys,
+	&backlight,
+	&w3220,
+	&egpio,
+	&bq24022,
+	&gpio_vbus,
+	&power_supply,
+	&strataflash,
+	&pcmcia,
+};
+
+struct gpio_ress global_gpios[] = {
+	HX4700_GPIO_IN(GPIO12_HX4700_ASIC3_IRQ, "ASIC3_IRQ"),
+	HX4700_GPIO_IN(GPIO13_HX4700_W3220_IRQ, "W3220_IRQ"),
+	HX4700_GPIO_IN(GPIO14_HX4700_nWLAN_IRQ, "WLAN_IRQ"),
+	HX4700_GPIO_OUT(GPIO59_HX4700_LCD_PC1,          1, "LCD_PC1"),
+	HX4700_GPIO_OUT(GPIO62_HX4700_LCD_nRESET,       1, "LCD_RESET"),
+	HX4700_GPIO_OUT(GPIO70_HX4700_LCD_SLIN1,        1, "LCD_SLIN1"),
+	HX4700_GPIO_OUT(GPIO84_HX4700_LCD_SQN,          1, "LCD_SQN"),
+	HX4700_GPIO_OUT(GPIO110_HX4700_LCD_LVDD_3V3_ON, 1, "LCD_LVDD"),
+	HX4700_GPIO_OUT(GPIO111_HX4700_LCD_AVDD_3V3_ON, 1, "LCD_AVDD"),
+	HX4700_GPIO_OUT(GPIO32_HX4700_RS232_ON,         1, "RS232_ON"),
+	HX4700_GPIO_OUT(GPIO71_HX4700_ASIC3_nRESET,     1, "ASIC3_nRESET"),
+	HX4700_GPIO_OUT(GPIO82_HX4700_EUART_RESET,      1, "EUART_RESET"),
+	HX4700_GPIO_OUT(GPIO105_HX4700_nIR_ON,          1, "nIR_EN"),
+};
+
+static void __init hx4700_init(void)
+{
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
+	hx4700_gpio_request(ARRAY_AND_SIZE(global_gpios));
+
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+
+	pxa_set_ficp_info(&ficp_info);
+	pxa27x_set_i2c_power_info(NULL);
+	pxa_set_i2c_info(NULL);
+	pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
+	spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info));
+
+	hx4700_lcd_device = lcd_device_register("w100fb", NULL,
+					(void *)&w3220_info, &hx4700_lcd_ops);
+
+	gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 0);
+	mdelay(10);
+	gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 1);
+	mdelay(10);
+}
+
+MACHINE_START(H4700, "HP iPAQ HX4700")
+	.phys_io      = 0x40000000,
+	.io_pg_offst  = (io_p2v(0x40000000) >> 18) & 0xfffc,
+	.boot_params  = 0xa0000100,
+	.map_io       = pxa_map_io,
+	.init_irq     = pxa27x_init_irq,
+	.init_machine = hx4700_init,
+	.timer        = &pxa_timer,
+MACHINE_END