[ARM] 5202/1: pxa: Added Mitac Mio A701 smartphone support.

The Mio A701 support features :
 - GSM support
 - Bluetooth support
 - GPS support
 - LED/Vibrator support
 - Suspend/Resume support (very dependant on Mio FlashRam)
 - Screen/Backlight support
 - Keys/Keyboard support
 - USB udc support
 - MMC/SDIO support
 - Flash Memory support
 - Battery/AC plugin support

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-pxa/Kconfig

@@ -216,6 +216,18 @@ config MACH_MAGICIAN
 	select PXA27x
 	select IWMMXT
 
+config MACH_MIOA701
+	bool "Mitac Mio A701 Support"
+	select PXA27x
+	select IWMMXT
+	select LEDS_GPIO
+	select HAVE_PWM
+	select GPIO_SYSFS
+	help
+	  Say Y here if you intend to run this kernel on a
+	  MIO A701. Currently there is only basic support
+	  for this PDA.
+
 config MACH_PCM027
 	bool "Phytec phyCORE-PXA270 CPU module (PCM-027)"
 	select PXA27x

arch/arm/mach-pxa/Makefile

@@ -37,6 +37,7 @@ obj-$(CONFIG_MACH_PCM990_BASEBOARD)	+= pcm990-baseboard.o
 obj-$(CONFIG_MACH_TOSA)		+= tosa.o
 obj-$(CONFIG_MACH_EM_X270)	+= em-x270.o
 obj-$(CONFIG_MACH_MAGICIAN)	+= magician.o
+obj-$(CONFIG_MACH_MIOA701)	+= mioa701.o mioa701_bootresume.o
 obj-$(CONFIG_ARCH_PXA_ESERIES)	+= eseries.o eseries_udc.o
 obj-$(CONFIG_MACH_E740)		+= e740_lcd.o
 obj-$(CONFIG_MACH_E750)		+= e750_lcd.o

arch/arm/mach-pxa/include/mach/mioa701.h

@@ -0,0 +1,67 @@
+#ifndef _MIOA701_H_
+#define _MIOA701_H_
+
+#define MIO_CFG_IN(pin, af)		\
+	((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DIR_MASK)) |\
+	 (MFP_PIN(pin) | MFP_##af | MFP_DIR_IN))
+
+#define MIO_CFG_OUT(pin, af, state)	\
+	((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DIR_MASK | MFP_LPM_STATE_MASK)) |\
+	 (MFP_PIN(pin) | MFP_##af | MFP_DIR_OUT | MFP_LPM_##state))
+
+/* Global GPIOs */
+#define GPIO9_CHARGE_nEN			9
+#define GPIO18_POWEROFF				18
+#define GPIO87_LCD_POWER			87
+
+/* USB */
+#define GPIO13_USB_DETECT			13
+#define GPIO22_USB_ENABLE			22
+
+/* SDIO bits */
+#define GPIO78_SDIO_RO				78
+#define GPIO15_SDIO_INSERT			15
+#define GPIO91_SDIO_EN				91
+
+/* Bluetooth */
+#define GPIO83_BT_ON				83
+
+/* GPS */
+#define GPIO23_GPS_UNKNOWN1			23
+#define GPIO26_GPS_ON				26
+#define GPIO27_GPS_RESET			27
+#define GPIO106_GPS_UNKNOWN2			106
+#define GPIO107_GPS_UNKNOWN3			107
+
+/* GSM */
+#define GPIO24_GSM_MOD_RESET_CMD		24
+#define GPIO88_GSM_nMOD_ON_CMD			88
+#define GPIO90_GSM_nMOD_OFF_CMD			90
+#define GPIO114_GSM_nMOD_DTE_UART_STATE 	114
+#define GPIO25_GSM_MOD_ON_STATE			25
+#define GPIO113_GSM_EVENT			113
+
+/* SOUND */
+#define GPIO12_HPJACK_INSERT			12
+
+/* LEDS */
+#define GPIO10_LED_nCharging			10
+#define GPIO97_LED_nBlue			97
+#define GPIO98_LED_nOrange			98
+#define GPIO82_LED_nVibra			82
+#define GPIO115_LED_nKeyboard			115
+
+/* Keyboard */
+#define GPIO0_KEY_POWER				0
+#define GPIO93_KEY_VOLUME_UP			93
+#define GPIO94_KEY_VOLUME_DOWN			94
+
+extern struct input_dev *mioa701_evdev;
+extern void mioa701_gpio_lpm_set(unsigned long mfp_pin);
+
+/* Assembler externals mioa701_bootresume.S */
+extern u32 mioa701_bootstrap;
+extern u32 mioa701_jumpaddr;
+extern u32 mioa701_bootstrap_lg;
+
+#endif /* _MIOA701_H */

arch/arm/mach-pxa/mioa701.c

@@ -0,0 +1,905 @@
+/*
+ * Handles the Mitac Mio A701 Board
+ *
+ * Copyright (C) 2008 Robert Jarzmik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/sysdev.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/gpio_keys.h>
+#include <linux/pwm_backlight.h>
+#include <linux/rtc.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/pda_power.h>
+#include <linux/power_supply.h>
+#include <linux/wm97xx.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/mfp-pxa27x.h>
+#include <mach/pxa27x_keypad.h>
+#include <mach/pxafb.h>
+#include <mach/pxa2xx-regs.h>
+#include <mach/mmc.h>
+#include <mach/udc.h>
+#include <mach/pxa27x-udc.h>
+
+#include <mach/mioa701.h>
+
+#include "generic.h"
+#include "devices.h"
+
+static unsigned long mioa701_pin_config[] = {
+	/* Mio global */
+	MIO_CFG_OUT(GPIO9_CHARGE_nEN, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO18_POWEROFF, AF0, DRIVE_LOW),
+	MFP_CFG_OUT(GPIO3, AF0, DRIVE_HIGH),
+	MFP_CFG_OUT(GPIO4, AF0, DRIVE_HIGH),
+
+	/* Backlight PWM 0 */
+	GPIO16_PWM0_OUT,
+
+	/* MMC */
+	GPIO32_MMC_CLK,
+	GPIO92_MMC_DAT_0,
+	GPIO109_MMC_DAT_1,
+	GPIO110_MMC_DAT_2,
+	GPIO111_MMC_DAT_3,
+	GPIO112_MMC_CMD,
+	MIO_CFG_IN(GPIO78_SDIO_RO, AF0),
+	MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0),
+	MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW),
+
+	/* USB */
+	MIO_CFG_IN(GPIO13_USB_DETECT, AF0),
+	MIO_CFG_OUT(GPIO22_USB_ENABLE, AF0, DRIVE_LOW),
+
+	/* LCD */
+	GPIO58_LCD_LDD_0,
+	GPIO59_LCD_LDD_1,
+	GPIO60_LCD_LDD_2,
+	GPIO61_LCD_LDD_3,
+	GPIO62_LCD_LDD_4,
+	GPIO63_LCD_LDD_5,
+	GPIO64_LCD_LDD_6,
+	GPIO65_LCD_LDD_7,
+	GPIO66_LCD_LDD_8,
+	GPIO67_LCD_LDD_9,
+	GPIO68_LCD_LDD_10,
+	GPIO69_LCD_LDD_11,
+	GPIO70_LCD_LDD_12,
+	GPIO71_LCD_LDD_13,
+	GPIO72_LCD_LDD_14,
+	GPIO73_LCD_LDD_15,
+	GPIO74_LCD_FCLK,
+	GPIO75_LCD_LCLK,
+	GPIO76_LCD_PCLK,
+
+	/* Bluetooth */
+	GPIO44_BTUART_CTS,
+	GPIO42_BTUART_RXD,
+	GPIO45_BTUART_RTS,
+	GPIO43_BTUART_TXD,
+	MIO_CFG_OUT(GPIO83_BT_ON, AF0, DRIVE_LOW),
+
+	/* GPS */
+	MIO_CFG_OUT(GPIO23_GPS_UNKNOWN1, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO26_GPS_ON, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO27_GPS_RESET, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO106_GPS_UNKNOWN2, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO107_GPS_UNKNOWN3, AF0, DRIVE_LOW),
+	GPIO46_STUART_RXD,
+	GPIO47_STUART_TXD,
+
+	/* GSM */
+	MIO_CFG_OUT(GPIO24_GSM_MOD_RESET_CMD, AF0, DRIVE_LOW),
+	MIO_CFG_OUT(GPIO88_GSM_nMOD_ON_CMD, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO90_GSM_nMOD_OFF_CMD, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO114_GSM_nMOD_DTE_UART_STATE, AF0, DRIVE_HIGH),
+	MIO_CFG_IN(GPIO25_GSM_MOD_ON_STATE, AF0),
+	MIO_CFG_IN(GPIO113_GSM_EVENT, AF0) | WAKEUP_ON_EDGE_BOTH,
+	GPIO34_FFUART_RXD,
+	GPIO35_FFUART_CTS,
+	GPIO36_FFUART_DCD,
+	GPIO37_FFUART_DSR,
+	GPIO39_FFUART_TXD,
+	GPIO40_FFUART_DTR,
+	GPIO41_FFUART_RTS,
+
+	/* Sound */
+	GPIO89_AC97_SYSCLK,
+	MIO_CFG_IN(GPIO12_HPJACK_INSERT, AF0),
+
+	/* Leds */
+	MIO_CFG_OUT(GPIO10_LED_nCharging, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO97_LED_nBlue, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO98_LED_nOrange, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO82_LED_nVibra, AF0, DRIVE_HIGH),
+	MIO_CFG_OUT(GPIO115_LED_nKeyboard, AF0, DRIVE_HIGH),
+
+	/* Keyboard */
+	MIO_CFG_IN(GPIO0_KEY_POWER, AF0) | WAKEUP_ON_EDGE_BOTH,
+	MIO_CFG_IN(GPIO93_KEY_VOLUME_UP, AF0),
+	MIO_CFG_IN(GPIO94_KEY_VOLUME_DOWN, AF0),
+	GPIO100_KP_MKIN_0,
+	GPIO101_KP_MKIN_1,
+	GPIO102_KP_MKIN_2,
+	GPIO103_KP_MKOUT_0,
+	GPIO104_KP_MKOUT_1,
+	GPIO105_KP_MKOUT_2,
+
+	/* Unknown */
+	MFP_CFG_IN(GPIO14, AF0),
+	MFP_CFG_IN(GPIO20, AF0),
+	MFP_CFG_IN(GPIO21, AF0),
+	MFP_CFG_IN(GPIO33, AF0),
+	MFP_CFG_OUT(GPIO49, AF0, DRIVE_HIGH),
+	MFP_CFG_OUT(GPIO57, AF0, DRIVE_HIGH),
+	MFP_CFG_OUT(GPIO77, AF0, DRIVE_HIGH),
+	MFP_CFG_IN(GPIO80, AF0),
+	MFP_CFG_OUT(GPIO86, AF0, DRIVE_HIGH),
+	MFP_CFG_IN(GPIO96, AF0),
+	MFP_CFG_OUT(GPIO116, AF0, DRIVE_HIGH),
+};
+
+#define MIO_GPIO_IN(num, _desc) \
+	{ .gpio = (num), .dir = 0, .desc = (_desc) }
+#define MIO_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 mio_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) {
+			printk(KERN_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;
+}
+
+static void mio_gpio_free(struct gpio_ress *gpios, int size)
+{
+	int i;
+
+	for (i = 0; i < size; i++)
+		gpio_free(gpios[i].gpio);
+}
+
+/* LCD Screen and Backlight */
+static struct platform_pwm_backlight_data mioa701_backlight_data = {
+	.pwm_id		= 0,
+	.max_brightness	= 100,
+	.dft_brightness	= 50,
+	.pwm_period_ns	= 4000 * 1024,	/* Fl = 250kHz */
+};
+
+/*
+ * LTM0305A776C LCD panel timings
+ *
+ * see:
+ *  - the LTM0305A776C datasheet,
+ *  - and the PXA27x Programmers' manual
+ */
+static struct pxafb_mode_info mioa701_ltm0305a776c = {
+	.pixclock		= 220000,	/* CLK=4.545 MHz */
+	.xres			= 240,
+	.yres			= 320,
+	.bpp			= 16,
+	.hsync_len		= 4,
+	.vsync_len		= 2,
+	.left_margin		= 6,
+	.right_margin		= 4,
+	.upper_margin		= 5,
+	.lower_margin		= 3,
+};
+
+static void mioa701_lcd_power(int on, struct fb_var_screeninfo *si)
+{
+	gpio_set_value(GPIO87_LCD_POWER, on);
+}
+
+static struct pxafb_mach_info mioa701_pxafb_info = {
+	.modes			= &mioa701_ltm0305a776c,
+	.num_modes		= 1,
+	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
+	.pxafb_lcd_power	= mioa701_lcd_power,
+};
+
+/*
+ * Keyboard configuration
+ */
+static unsigned int mioa701_matrix_keys[] = {
+	KEY(0, 0, KEY_UP),
+	KEY(0, 1, KEY_RIGHT),
+	KEY(0, 2, KEY_MEDIA),
+	KEY(1, 0, KEY_DOWN),
+	KEY(1, 1, KEY_ENTER),
+	KEY(1, 2, KEY_CONNECT),	/* GPS key */
+	KEY(2, 0, KEY_LEFT),
+	KEY(2, 1, KEY_PHONE),	/* Phone Green key */
+	KEY(2, 2, KEY_CAMERA)	/* Camera key */
+};
+static struct pxa27x_keypad_platform_data mioa701_keypad_info = {
+	.matrix_key_rows = 3,
+	.matrix_key_cols = 3,
+	.matrix_key_map = mioa701_matrix_keys,
+	.matrix_key_map_size = ARRAY_SIZE(mioa701_matrix_keys),
+};
+
+/*
+ * GPIO Key Configuration
+ */
+#define MIO_KEY(key, _gpio, _desc, _wakeup) \
+	{ .code = (key), .gpio = (_gpio), .active_low = 0, \
+	.desc = (_desc), .type = EV_KEY, .wakeup = (_wakeup) }
+static struct gpio_keys_button mioa701_button_table[] = {
+	MIO_KEY(KEY_EXIT, GPIO0_KEY_POWER, "Power button", 1),
+	MIO_KEY(KEY_VOLUMEUP, GPIO93_KEY_VOLUME_UP, "Volume up", 0),
+	MIO_KEY(KEY_VOLUMEDOWN, GPIO94_KEY_VOLUME_DOWN, "Volume down", 0),
+	MIO_KEY(KEY_HP, GPIO12_HPJACK_INSERT, "HP jack detect", 0)
+};
+
+static struct gpio_keys_platform_data mioa701_gpio_keys_data = {
+	.buttons  = mioa701_button_table,
+	.nbuttons = ARRAY_SIZE(mioa701_button_table),
+};
+
+/*
+ * Leds and vibrator
+ */
+#define ONE_LED(_gpio, _name) \
+{ .gpio = (_gpio), .name = (_name), .active_low = true }
+static struct gpio_led gpio_leds[] = {
+	ONE_LED(GPIO10_LED_nCharging, "mioa701:charging"),
+	ONE_LED(GPIO97_LED_nBlue, "mioa701:blue"),
+	ONE_LED(GPIO98_LED_nOrange, "mioa701:orange"),
+	ONE_LED(GPIO82_LED_nVibra, "mioa701:vibra"),
+	ONE_LED(GPIO115_LED_nKeyboard, "mioa701:keyboard")
+};
+
+static struct gpio_led_platform_data gpio_led_info = {
+	.leds = gpio_leds,
+	.num_leds = ARRAY_SIZE(gpio_leds),
+};
+
+/*
+ * GSM Sagem XS200 chip
+ *
+ * GSM handling was purged from kernel. For history, this is the way to go :
+ *   - init : GPIO24_GSM_MOD_RESET_CMD = 0, GPIO114_GSM_nMOD_DTE_UART_STATE = 1
+ *            GPIO88_GSM_nMOD_ON_CMD = 1, GPIO90_GSM_nMOD_OFF_CMD = 1
+ *   - reset : GPIO24_GSM_MOD_RESET_CMD = 1, msleep(100),
+ *             GPIO24_GSM_MOD_RESET_CMD = 0
+ *   - turn on  : GPIO88_GSM_nMOD_ON_CMD = 0, msleep(1000),
+ *                GPIO88_GSM_nMOD_ON_CMD = 1
+ *   - turn off : GPIO90_GSM_nMOD_OFF_CMD = 0, msleep(1000),
+ *                GPIO90_GSM_nMOD_OFF_CMD = 1
+ */
+static int is_gsm_on(void)
+{
+	int is_on;
+
+	is_on = !!gpio_get_value(GPIO25_GSM_MOD_ON_STATE);
+	return is_on;
+}
+
+irqreturn_t gsm_on_irq(int irq, void *p)
+{
+	printk(KERN_DEBUG "Mioa701: GSM status changed to %s\n",
+	       is_gsm_on() ? "on" : "off");
+	return IRQ_HANDLED;
+}
+
+struct gpio_ress gsm_gpios[] = {
+	MIO_GPIO_IN(GPIO25_GSM_MOD_ON_STATE, "GSM state"),
+	MIO_GPIO_IN(GPIO113_GSM_EVENT, "GSM event"),
+};
+
+static int __init gsm_init(void)
+{
+	int rc;
+
+	rc = mio_gpio_request(ARRAY_AND_SIZE(gsm_gpios));
+	if (rc)
+		goto err_gpio;
+	rc = request_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), gsm_on_irq,
+			 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+			 "GSM XS200 Power Irq", NULL);
+	if (rc)
+		goto err_irq;
+
+	gpio_set_wake(GPIO113_GSM_EVENT, 1);
+	return 0;
+
+err_irq:
+	printk(KERN_ERR "Mioa701: Can't request GSM_ON irq\n");
+	mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios));
+err_gpio:
+	printk(KERN_ERR "Mioa701: gsm not available\n");
+	return rc;
+}
+
+static void gsm_exit(void)
+{
+	free_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), NULL);
+	mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios));
+}
+
+/*
+ * Bluetooth BRF6150 chip
+ *
+ * BT handling was purged from kernel. For history, this is the way to go :
+ * - turn on  : GPIO83_BT_ON = 1
+ * - turn off : GPIO83_BT_ON = 0
+ */
+
+/*
+ * GPS Sirf Star III chip
+ *
+ * GPS handling was purged from kernel. For history, this is the way to go :
+ * - init : GPIO23_GPS_UNKNOWN1 = 1, GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
+ *          GPIO106_GPS_UNKNOWN2 = 0, GPIO107_GPS_UNKNOWN3 = 0
+ * - turn on  : GPIO27_GPS_RESET = 1, GPIO26_GPS_ON = 1
+ * - turn off : GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
+ */
+
+/*
+ * USB UDC
+ */
+static void udc_power_command(int cmd)
+{
+	switch (cmd) {
+	case PXA2XX_UDC_CMD_DISCONNECT:
+		gpio_set_value(GPIO22_USB_ENABLE, 0);
+		break;
+	case PXA2XX_UDC_CMD_CONNECT:
+		gpio_set_value(GPIO22_USB_ENABLE, 1);
+		break;
+	default:
+		printk(KERN_INFO "udc_control: unknown command (0x%x)!\n", cmd);
+		break;
+	}
+}
+
+static int is_usb_connected(void)
+{
+	return !!gpio_get_value(GPIO13_USB_DETECT);
+}
+
+static struct pxa2xx_udc_mach_info mioa701_udc_info = {
+	.udc_is_connected = is_usb_connected,
+	.udc_command	  = udc_power_command,
+};
+
+struct gpio_ress udc_gpios[] = {
+	MIO_GPIO_OUT(GPIO22_USB_ENABLE, 0, "USB Vbus enable")
+};
+
+static int __init udc_init(void)
+{
+	pxa_set_udc_info(&mioa701_udc_info);
+	return mio_gpio_request(ARRAY_AND_SIZE(udc_gpios));
+}
+
+static void udc_exit(void)
+{
+	mio_gpio_free(ARRAY_AND_SIZE(udc_gpios));
+}
+
+/*
+ * SDIO/MMC Card controller
+ */
+static void mci_setpower(struct device *dev, unsigned int vdd)
+{
+	struct pxamci_platform_data *p_d = dev->platform_data;
+
+	if ((1 << vdd) & p_d->ocr_mask)
+		gpio_set_value(GPIO91_SDIO_EN, 1);	/* enable SDIO power */
+	else
+		gpio_set_value(GPIO91_SDIO_EN, 0);	/* disable SDIO power */
+}
+
+static int mci_get_ro(struct device *dev)
+{
+	return gpio_get_value(GPIO78_SDIO_RO);
+}
+
+struct gpio_ress mci_gpios[] = {
+	MIO_GPIO_IN(GPIO78_SDIO_RO, 	"SDIO readonly detect"),
+	MIO_GPIO_IN(GPIO15_SDIO_INSERT,	"SDIO insertion detect"),
+	MIO_GPIO_OUT(GPIO91_SDIO_EN, 0,	"SDIO power enable")
+};
+
+static void mci_exit(struct device *dev, void *data)
+{
+	mio_gpio_free(ARRAY_AND_SIZE(mci_gpios));
+	free_irq(gpio_to_irq(GPIO15_SDIO_INSERT), data);
+}
+
+static struct pxamci_platform_data mioa701_mci_info;
+
+/**
+ * The card detect interrupt isn't debounced so we delay it by 250ms
+ * to give the card a chance to fully insert/eject.
+ */
+static int mci_init(struct device *dev, irq_handler_t detect_int, void *data)
+{
+	int rc;
+	int irq = gpio_to_irq(GPIO15_SDIO_INSERT);
+
+	rc = mio_gpio_request(ARRAY_AND_SIZE(mci_gpios));
+	if (rc)
+		goto err_gpio;
+	/* enable RE/FE interrupt on card insertion and removal */
+	rc = request_irq(irq, detect_int,
+			 IRQF_DISABLED | IRQF_TRIGGER_RISING |
+			 IRQF_TRIGGER_FALLING,
+			 "MMC card detect", data);
+	if (rc)
+		goto err_irq;
+
+	mioa701_mci_info.detect_delay = msecs_to_jiffies(250);
+	return 0;
+
+err_irq:
+	dev_err(dev, "mioa701_mci_init: MMC/SD:"
+		" can't request MMC card detect IRQ\n");
+	mio_gpio_free(ARRAY_AND_SIZE(mci_gpios));
+err_gpio:
+	return rc;
+}
+
+static struct pxamci_platform_data mioa701_mci_info = {
+	.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
+	.init	  = mci_init,
+	.get_ro	  = mci_get_ro,
+	.setpower = mci_setpower,
+	.exit	  = mci_exit,
+};
+
+/* FlashRAM */
+static struct resource strataflash_resource = {
+	.start = PXA_CS0_PHYS,
+	.end   = PXA_CS0_PHYS + SZ_64M - 1,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct physmap_flash_data strataflash_data = {
+	.width = 2,
+	/* .set_vpp = mioa701_set_vpp, */
+};
+
+static struct platform_device strataflash = {
+	.name	       = "physmap-flash",
+	.id	       = -1,
+	.resource      = &strataflash_resource,
+	.num_resources = 1,
+	.dev = {
+		.platform_data = &strataflash_data,
+	},
+};
+
+/*
+ * Suspend/Resume bootstrap management
+ *
+ * MIO A701 reboot sequence is highly ROM dependant. From the one dissassembled,
+ * this sequence is as follows :
+ *   - disables interrupts
+ *   - initialize SDRAM (self refresh RAM into active RAM)
+ *   - initialize GPIOs (depends on value at 0xa020b020)
+ *   - initialize coprossessors
+ *   - if edge detect on PWR_SCL(GPIO3), then proceed to cold start
+ *   - or if value at 0xa020b000 not equal to 0x0f0f0f0f, proceed to cold start
+ *   - else do a resume, ie. jump to addr 0xa0100000
+ */
+#define RESUME_ENABLE_ADDR	0xa020b000
+#define RESUME_ENABLE_VAL	0x0f0f0f0f
+#define RESUME_BT_ADDR		0xa020b020
+#define RESUME_UNKNOWN_ADDR	0xa020b024
+#define RESUME_VECTOR_ADDR	0xa0100000
+#define BOOTSTRAP_WORDS		mioa701_bootstrap_lg/4
+
+static u32 *save_buffer;
+
+static void install_bootstrap(void)
+{
+	int i;
+	u32 *rom_bootstrap  = phys_to_virt(RESUME_VECTOR_ADDR);
+	u32 *src = &mioa701_bootstrap;
+
+	for (i = 0; i < BOOTSTRAP_WORDS; i++)
+		rom_bootstrap[i] = src[i];
+}
+
+
+static int mioa701_sys_suspend(struct sys_device *sysdev, pm_message_t state)
+{
+	int i = 0, is_bt_on;
+	u32 *mem_resume_vector	= phys_to_virt(RESUME_VECTOR_ADDR);
+	u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
+	u32 *mem_resume_bt	= phys_to_virt(RESUME_BT_ADDR);
+	u32 *mem_resume_unknown	= phys_to_virt(RESUME_UNKNOWN_ADDR);
+
+	/* Devices prepare suspend */
+	is_bt_on = gpio_get_value(GPIO83_BT_ON);
+	pxa2xx_mfp_set_lpm(GPIO83_BT_ON,
+			   is_bt_on ? MFP_LPM_DRIVE_HIGH : MFP_LPM_DRIVE_LOW);
+
+	for (i = 0; i < BOOTSTRAP_WORDS; i++)
+		save_buffer[i] = mem_resume_vector[i];
+	save_buffer[i++] = *mem_resume_enabler;
+	save_buffer[i++] = *mem_resume_bt;
+	save_buffer[i++] = *mem_resume_unknown;
+
+	*mem_resume_enabler = RESUME_ENABLE_VAL;
+	*mem_resume_bt	    = is_bt_on;
+
+	install_bootstrap();
+	return 0;
+}
+
+static int mioa701_sys_resume(struct sys_device *sysdev)
+{
+	int i = 0;
+	u32 *mem_resume_vector	= phys_to_virt(RESUME_VECTOR_ADDR);
+	u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
+	u32 *mem_resume_bt	= phys_to_virt(RESUME_BT_ADDR);
+	u32 *mem_resume_unknown	= phys_to_virt(RESUME_UNKNOWN_ADDR);
+
+	for (i = 0; i < BOOTSTRAP_WORDS; i++)
+		mem_resume_vector[i] = save_buffer[i];
+	*mem_resume_enabler = save_buffer[i++];
+	*mem_resume_bt	    = save_buffer[i++];
+	*mem_resume_unknown = save_buffer[i++];
+
+	return 0;
+}
+
+static struct sysdev_class mioa701_sysclass = {
+	.name = "mioa701",
+};
+
+static struct sys_device sysdev_bootstrap = {
+	.cls		= &mioa701_sysclass,
+};
+
+static struct sysdev_driver driver_bootstrap = {
+	.suspend	= &mioa701_sys_suspend,
+	.resume		= &mioa701_sys_resume,
+};
+
+static int __init bootstrap_init(void)
+{
+	int rc;
+	int save_size = mioa701_bootstrap_lg + (sizeof(u32) * 3);
+
+	rc = sysdev_class_register(&mioa701_sysclass);
+	if (rc) {
+		printk(KERN_ERR "Failed registering mioa701 sys class\n");
+		return -ENODEV;
+	}
+	rc = sysdev_register(&sysdev_bootstrap);
+	if (rc) {
+		printk(KERN_ERR "Failed registering mioa701 sys device\n");
+		return -ENODEV;
+	}
+	rc = sysdev_driver_register(&mioa701_sysclass, &driver_bootstrap);
+	if (rc) {
+		printk(KERN_ERR "Failed registering PMU sys driver\n");
+		return -ENODEV;
+	}
+
+	save_buffer = kmalloc(save_size, GFP_KERNEL);
+	if (!save_buffer)
+		return -ENOMEM;
+	printk(KERN_INFO "MioA701: allocated %d bytes for bootstrap\n",
+	       save_size);
+	return 0;
+}
+
+static void bootstrap_exit(void)
+{
+	kfree(save_buffer);
+	sysdev_driver_unregister(&mioa701_sysclass, &driver_bootstrap);
+	sysdev_unregister(&sysdev_bootstrap);
+	sysdev_class_unregister(&mioa701_sysclass);
+
+	printk(KERN_CRIT "Unregistering mioa701 suspend will hang next"
+	       "resume !!!\n");
+}
+
+/*
+ * Power Supply
+ */
+static char *supplicants[] = {
+	"mioa701_battery"
+};
+
+static void mioa701_set_charge(int flags)
+{
+	gpio_set_value(GPIO9_CHARGE_nEN, !flags);
+}
+
+static struct pda_power_pdata power_pdata = {
+	.is_ac_online	= is_usb_connected,
+	.set_charge = mioa701_set_charge,
+	.supplied_to = supplicants,
+	.num_supplicants = ARRAY_SIZE(supplicants),
+};
+
+static struct resource power_resources[] = {
+	[0] = {
+		.name	= "ac",
+		.start	= gpio_to_irq(GPIO13_USB_DETECT),
+		.end	= gpio_to_irq(GPIO13_USB_DETECT),
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
+		IORESOURCE_IRQ_LOWEDGE,
+	},
+};
+
+static struct platform_device power_dev = {
+	.name		= "pda-power",
+	.id		= -1,
+	.resource	= power_resources,
+	.num_resources	= ARRAY_SIZE(power_resources),
+	.dev = {
+		.platform_data	= &power_pdata,
+	},
+};
+
+#if defined(CONFIG_PDA_POWER) && defined(CONFIG_TOUCHSCREEN_WM97XX)
+static struct wm97xx *battery_wm;
+
+static enum power_supply_property battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,	/* Necessary for apm */
+};
+
+static int get_battery_voltage(void)
+{
+	int adc = -1;
+
+	if (battery_wm)
+		adc = wm97xx_read_aux_adc(battery_wm, WM97XX_AUX_ID1);
+	return adc;
+}
+
+static int get_battery_status(struct power_supply *b)
+{
+	int status;
+
+	if (is_usb_connected())
+		status = POWER_SUPPLY_STATUS_CHARGING;
+	else
+		status = POWER_SUPPLY_STATUS_DISCHARGING;
+
+	return status;
+}
+
+static int get_property(struct power_supply *b,
+			enum power_supply_property psp,
+			union power_supply_propval *val)
+{
+	int rc = 0;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = get_battery_status(b);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+		val->intval = 0xfd0;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+		val->intval = 0xc00;
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		val->intval = get_battery_voltage();
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+		val->intval = 100;
+		break;
+	default:
+		val->intval = -1;
+		rc = -1;
+	}
+
+	return rc;
+};
+
+static struct power_supply battery_ps = {
+	.name = "mioa701_battery",
+	.type = POWER_SUPPLY_TYPE_BATTERY,
+	.get_property = get_property,
+	.properties = battery_props,
+	.num_properties = ARRAY_SIZE(battery_props),
+};
+
+static int battery_probe(struct platform_device *pdev)
+{
+	struct wm97xx *wm = platform_get_drvdata(pdev);
+	int rc;
+
+	battery_wm = wm;
+
+	rc = power_supply_register(NULL, &battery_ps);
+	if (rc)
+		dev_err(&pdev->dev,
+		"Could not register mioa701 battery -> %d\n", rc);
+	return rc;
+}
+
+static int battery_remove(struct platform_device *pdev)
+{
+	battery_wm = NULL;
+	return 0;
+}
+
+static struct platform_driver mioa701_battery_driver = {
+	.driver = {
+		.name = "wm97xx-battery",
+	},
+	.probe = battery_probe,
+	.remove = battery_remove
+};
+
+static int __init mioa701_battery_init(void)
+{
+	int rc;
+
+	rc = platform_driver_register(&mioa701_battery_driver);
+	if (rc)
+		printk(KERN_ERR "Could not register mioa701 battery driver\n");
+	return rc;
+}
+
+#else
+static int __init mioa701_battery_init(void)
+{
+	return 0;
+}
+#endif
+
+/*
+ * Mio global
+ */
+
+/* Devices */
+#define MIO_PARENT_DEV(var, strname, tparent, pdata)	\
+static struct platform_device var = {			\
+	.name		= strname,			\
+	.id		= -1,				\
+	.dev		= {				\
+		.platform_data = pdata,			\
+		.parent	= tparent,			\
+	},						\
+};
+#define MIO_SIMPLE_DEV(var, strname, pdata)	\
+	MIO_PARENT_DEV(var, strname, NULL, pdata)
+
+MIO_SIMPLE_DEV(mioa701_gpio_keys, "gpio-keys",	    &mioa701_gpio_keys_data)
+MIO_PARENT_DEV(mioa701_backlight, "pwm-backlight",  &pxa27x_device_pwm0.dev,
+		&mioa701_backlight_data);
+MIO_SIMPLE_DEV(mioa701_led,	  "leds-gpio",	    &gpio_led_info)
+MIO_SIMPLE_DEV(pxa2xx_pcm,	  "pxa2xx-pcm",	    NULL)
+MIO_SIMPLE_DEV(pxa2xx_ac97,	  "pxa2xx-ac97",    NULL)
+MIO_PARENT_DEV(mio_wm9713_codec,  "wm9713-codec",   &pxa2xx_ac97.dev, NULL)
+MIO_SIMPLE_DEV(mioa701_sound,	  "mioa701-wm9713", NULL)
+MIO_SIMPLE_DEV(mioa701_board,	  "mioa701-board",  NULL)
+
+static struct platform_device *devices[] __initdata = {
+	&mioa701_gpio_keys,
+	&mioa701_backlight,
+	&mioa701_led,
+	&pxa2xx_pcm,
+	&pxa2xx_ac97,
+	&mio_wm9713_codec,
+	&mioa701_sound,
+	&power_dev,
+	&strataflash,
+	&mioa701_board
+};
+
+static void mioa701_machine_exit(void);
+
+static void mioa701_poweroff(void)
+{
+	mioa701_machine_exit();
+	gpio_set_value(GPIO18_POWEROFF, 1);
+}
+
+static void mioa701_restart(char c)
+{
+	mioa701_machine_exit();
+	arm_machine_restart(c);
+}
+
+struct gpio_ress global_gpios[] = {
+	MIO_GPIO_OUT(GPIO9_CHARGE_nEN, 1, "Charger enable"),
+	MIO_GPIO_OUT(GPIO18_POWEROFF, 0, "Power Off"),
+	MIO_GPIO_OUT(GPIO87_LCD_POWER, 0, "LCD Power")
+};
+
+static void __init mioa701_machine_init(void)
+{
+	PSLR  = 0xff100000; /* SYSDEL=125ms, PWRDEL=125ms, PSLR_SL_ROD=1 */
+	PCFR = PCFR_DC_EN | PCFR_GPR_EN | PCFR_OPDE;
+	RTTR = 32768 - 1; /* Reset crazy WinCE value */
+	UP2OCR = UP2OCR_HXOE;
+
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(mioa701_pin_config));
+	mio_gpio_request(ARRAY_AND_SIZE(global_gpios));
+	bootstrap_init();
+	set_pxa_fb_info(&mioa701_pxafb_info);
+	pxa_set_mci_info(&mioa701_mci_info);
+	pxa_set_keypad_info(&mioa701_keypad_info);
+	udc_init();
+	pm_power_off = mioa701_poweroff;
+	arm_pm_restart = mioa701_restart;
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+	gsm_init();
+	mioa701_battery_init();
+}
+
+static void mioa701_machine_exit(void)
+{
+	udc_exit();
+	bootstrap_exit();
+	gsm_exit();
+}
+
+MACHINE_START(MIOA701, "MIO A701")
+	.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	= mioa701_machine_init,
+	.timer		= &pxa_timer,
+MACHINE_END

arch/arm/mach-pxa/mioa701_bootresume.S

@@ -0,0 +1,36 @@
+/* Bootloader to resume MIO A701
+ *
+ * 2007-1-12 Robert Jarzmik
+ *
+ * This code is licenced under the GPLv2.
+*/
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+/*
+ * Note: Yes, part of the following code is located into the .data section.
+ *       This is to allow jumpaddr to be accessed with a relative load
+ *       while we can't rely on any MMU translation.  We could have put
+ *       sleep_save_sp in the .text section as well, but some setups might
+ *       insist on it to be truly read-only.
+ */
+	.data
+ENTRY(mioa701_bootstrap)
+0:
+	b	1f
+ENTRY(mioa701_jumpaddr)
+	.word	0x40f00008		@ PSPR in no-MMU mode
+1:
+	mov	r0,     #0xa0000000	@ Don't suppose memory access works
+	orr	r0, r0, #0x00200000	@ even if it's supposed to
+	mov	r1, #0
+	str	r1, [r0]		@ Early disable resume for next boot
+	ldr	r0, mioa701_jumpaddr	@ (Murphy's Law)
+	ldr	r0, [r0]
+	mov	pc, r0
+2:
+
+ENTRY(mioa701_bootstrap_lg)
+	.data
+	.word	2b-0b