[deliverable/linux.git] / arch / arm / mach-s3c24xx / mach-gta02.c

/*
 * S3C2442 Machine Support for Openmoko GTA02 / FreeRunner.
 *
 * Copyright (C) 2006-2009 by Openmoko, Inc.
 * Authors: Harald Welte <laforge@openmoko.org>
 *          Andy Green <andy@openmoko.org>
 *          Werner Almesberger <werner@openmoko.org>
 * All rights reserved.
 *
 * 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/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/workqueue.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/i2c.h>

#include <linux/mmc/host.h>

#include <linux/mfd/pcf50633/adc.h>
#include <linux/mfd/pcf50633/backlight.h>
#include <linux/mfd/pcf50633/core.h>
#include <linux/mfd/pcf50633/gpio.h>
#include <linux/mfd/pcf50633/mbc.h>
#include <linux/mfd/pcf50633/pmic.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>

#include <linux/regulator/machine.h>

#include <linux/spi/spi.h>
#include <linux/spi/s3c24xx.h>

#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/touchscreen-s3c2410.h>
#include <linux/platform_data/usb-ohci-s3c2410.h>
#include <linux/platform_data/usb-s3c2410_udc.h>

#include <mach/fb.h>
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
#include <mach/regs-irq.h>

#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/gpio-cfg.h>
#include <plat/pm.h>
#include <plat/regs-serial.h>

#include "common.h"
#include "gta02.h"

static struct pcf50633 *gta02_pcf;

/*
 * This gets called frequently when we paniced.
 */

static long gta02_panic_blink(int state)
{
	long delay = 0;
	char led;

	led = (state) ? 1 : 0;
	gpio_direction_output(GTA02_GPIO_AUX_LED, led);

	return delay;
}


static struct map_desc gta02_iodesc[] __initdata = {
	{
		.virtual	= 0xe0000000,
		.pfn		= __phys_to_pfn(S3C2410_CS3 + 0x01000000),
		.length		= SZ_1M,
		.type		= MT_DEVICE
	},
};

#define UCON (S3C2410_UCON_DEFAULT | S3C2443_UCON_RXERR_IRQEN)
#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)

static struct s3c2410_uartcfg gta02_uartcfgs[] = {
	[0] = {
		.hwport		= 0,
		.flags		= 0,
		.ucon		= UCON,
		.ulcon		= ULCON,
		.ufcon		= UFCON,
	},
	[1] = {
		.hwport		= 1,
		.flags		= 0,
		.ucon		= UCON,
		.ulcon		= ULCON,
		.ufcon		= UFCON,
	},
	[2] = {
		.hwport		= 2,
		.flags		= 0,
		.ucon		= UCON,
		.ulcon		= ULCON,
		.ufcon		= UFCON,
	},
};

#ifdef CONFIG_CHARGER_PCF50633
/*
 * On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin.
 * We use this to recognize that we can pull 1A from the USB socket.
 *
 * These constants are the measured pcf50633 ADC levels with the 1A
 * charger / 48K resistor, and with no pulldown resistor.
 */

#define ADC_NOM_CHG_DETECT_1A 6
#define ADC_NOM_CHG_DETECT_USB 43

static void
gta02_configure_pmu_for_charger(struct pcf50633 *pcf, void *unused, int res)
{
	int  ma;

	/* Interpret charger type */
	if (res < ((ADC_NOM_CHG_DETECT_USB + ADC_NOM_CHG_DETECT_1A) / 2)) {

		/*
		 * Sanity - stop GPO driving out now that we have a 1A charger
		 * GPO controls USB Host power generation on GTA02
		 */
		pcf50633_gpio_set(pcf, PCF50633_GPO, 0);

		ma = 1000;
	} else
		ma = 100;

	pcf50633_mbc_usb_curlim_set(pcf, ma);
}

static struct delayed_work gta02_charger_work;
static int gta02_usb_vbus_draw;

static void gta02_charger_worker(struct work_struct *work)
{
	if (gta02_usb_vbus_draw) {
		pcf50633_mbc_usb_curlim_set(gta02_pcf, gta02_usb_vbus_draw);
		return;
	}

#ifdef CONFIG_PCF50633_ADC
	pcf50633_adc_async_read(gta02_pcf,
				PCF50633_ADCC1_MUX_ADCIN1,
				PCF50633_ADCC1_AVERAGE_16,
				gta02_configure_pmu_for_charger,
				NULL);
#else
	/*
	 * If the PCF50633 ADC is disabled we fallback to a
	 * 100mA limit for safety.
	 */
	pcf50633_mbc_usb_curlim_set(pcf, 100);
#endif
}

#define GTA02_CHARGER_CONFIGURE_TIMEOUT ((3000 * HZ) / 1000)

static void gta02_pmu_event_callback(struct pcf50633 *pcf, int irq)
{
	if (irq == PCF50633_IRQ_USBINS) {
		schedule_delayed_work(&gta02_charger_work,
				      GTA02_CHARGER_CONFIGURE_TIMEOUT);

		return;
	}

	if (irq == PCF50633_IRQ_USBREM) {
		cancel_delayed_work_sync(&gta02_charger_work);
		gta02_usb_vbus_draw = 0;
	}
}

static void gta02_udc_vbus_draw(unsigned int ma)
{
	if (!gta02_pcf)
		return;

	gta02_usb_vbus_draw = ma;

	schedule_delayed_work(&gta02_charger_work,
			      GTA02_CHARGER_CONFIGURE_TIMEOUT);
}
#else /* !CONFIG_CHARGER_PCF50633 */
#define gta02_pmu_event_callback	NULL
#define gta02_udc_vbus_draw		NULL
#endif

/*
 * This is called when pc50633 is probed, unfortunately quite late in the
 * day since it is an I2C bus device. Here we can belatedly define some
 * platform devices with the advantage that we can mark the pcf50633 as the
 * parent. This makes them get suspended and resumed with their parent
 * the pcf50633 still around.
 */

static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf);


static char *gta02_batteries[] = {
	"battery",
};

static struct pcf50633_bl_platform_data gta02_backlight_data = {
	.default_brightness = 0x3f,
	.default_brightness_limit = 0,
	.ramp_time = 5,
};

static struct pcf50633_platform_data gta02_pcf_pdata = {
	.resumers = {
		[0] =	PCF50633_INT1_USBINS |
			PCF50633_INT1_USBREM |
			PCF50633_INT1_ALARM,
		[1] =	PCF50633_INT2_ONKEYF,
		[2] =	PCF50633_INT3_ONKEY1S,
		[3] =	PCF50633_INT4_LOWSYS |
			PCF50633_INT4_LOWBAT |
			PCF50633_INT4_HIGHTMP,
	},

	.batteries = gta02_batteries,
	.num_batteries = ARRAY_SIZE(gta02_batteries),

	.charger_reference_current_ma = 1000,

	.backlight_data = &gta02_backlight_data,

	.reg_init_data = {
		[PCF50633_REGULATOR_AUTO] = {
			.constraints = {
				.min_uV = 3300000,
				.max_uV = 3300000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.always_on = 1,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_DOWN1] = {
			.constraints = {
				.min_uV = 1300000,
				.max_uV = 1600000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.always_on = 1,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_DOWN2] = {
			.constraints = {
				.min_uV = 1800000,
				.max_uV = 1800000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.apply_uV = 1,
				.always_on = 1,
			},
		},
		[PCF50633_REGULATOR_HCLDO] = {
			.constraints = {
				.min_uV = 2000000,
				.max_uV = 3300000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
						REGULATOR_CHANGE_STATUS,
			},
		},
		[PCF50633_REGULATOR_LDO1] = {
			.constraints = {
				.min_uV = 3300000,
				.max_uV = 3300000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.valid_ops_mask = REGULATOR_CHANGE_STATUS,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_LDO2] = {
			.constraints = {
				.min_uV = 3300000,
				.max_uV = 3300000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_LDO3] = {
			.constraints = {
				.min_uV = 3000000,
				.max_uV = 3000000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_LDO4] = {
			.constraints = {
				.min_uV = 3200000,
				.max_uV = 3200000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.valid_ops_mask = REGULATOR_CHANGE_STATUS,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_LDO5] = {
			.constraints = {
				.min_uV = 3000000,
				.max_uV = 3000000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.valid_ops_mask = REGULATOR_CHANGE_STATUS,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_LDO6] = {
			.constraints = {
				.min_uV = 3000000,
				.max_uV = 3000000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
			},
		},
		[PCF50633_REGULATOR_MEMLDO] = {
			.constraints = {
				.min_uV = 1800000,
				.max_uV = 1800000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
			},
		},

	},
	.probe_done = gta02_pmu_attach_child_devices,
	.mbc_event_callback = gta02_pmu_event_callback,
};


/* NOR Flash. */

#define GTA02_FLASH_BASE	0x18000000 /* GCS3 */
#define GTA02_FLASH_SIZE	0x200000 /* 2MBytes */

static struct physmap_flash_data gta02_nor_flash_data = {
	.width		= 2,
};

static struct resource gta02_nor_flash_resource =
	DEFINE_RES_MEM(GTA02_FLASH_BASE, GTA02_FLASH_SIZE);

static struct platform_device gta02_nor_flash = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data	= &gta02_nor_flash_data,
	},
	.resource	= &gta02_nor_flash_resource,
	.num_resources	= 1,
};


static struct platform_device s3c24xx_pwm_device = {
	.name		= "s3c24xx_pwm",
	.num_resources	= 0,
};

static struct platform_device gta02_dfbmcs320_device = {
	.name = "dfbmcs320",
};

static struct i2c_board_info gta02_i2c_devs[] __initdata = {
	{
		I2C_BOARD_INFO("pcf50633", 0x73),
		.irq = GTA02_IRQ_PCF50633,
		.platform_data = &gta02_pcf_pdata,
	},
	{
		I2C_BOARD_INFO("wm8753", 0x1a),
	},
};

static struct s3c2410_nand_set __initdata gta02_nand_sets[] = {
	[0] = {
		/*
		 * This name is also hard-coded in the boot loaders, so
		 * changing it would would require all users to upgrade
		 * their boot loaders, some of which are stored in a NOR
		 * that is considered to be immutable.
		 */
		.name		= "neo1973-nand",
		.nr_chips	= 1,
		.flash_bbt	= 1,
	},
};

/*
 * Choose a set of timings derived from S3C@2442B MCP54
 * data sheet (K5D2G13ACM-D075 MCP Memory).
 */

static struct s3c2410_platform_nand __initdata gta02_nand_info = {
	.tacls		= 0,
	.twrph0		= 25,
	.twrph1		= 15,
	.nr_sets	= ARRAY_SIZE(gta02_nand_sets),
	.sets		= gta02_nand_sets,
};


/* Get PMU to set USB current limit accordingly. */
static struct s3c2410_udc_mach_info gta02_udc_cfg __initdata = {
	.vbus_draw	= gta02_udc_vbus_draw,
	.pullup_pin = GTA02_GPIO_USB_PULLUP,
};

/* USB */
static struct s3c2410_hcd_info gta02_usb_info __initdata = {
	.port[0]	= {
		.flags	= S3C_HCDFLG_USED,
	},
	.port[1]	= {
		.flags	= 0,
	},
};

/* Touchscreen */
static struct s3c2410_ts_mach_info gta02_ts_info = {
	.delay			= 10000,
	.presc			= 0xff, /* slow as we can go */
	.oversampling_shift	= 2,
};

/* Buttons */
static struct gpio_keys_button gta02_buttons[] = {
	{
		.gpio = GTA02_GPIO_AUX_KEY,
		.code = KEY_PHONE,
		.desc = "Aux",
		.type = EV_KEY,
		.debounce_interval = 100,
	},
	{
		.gpio = GTA02_GPIO_HOLD_KEY,
		.code = KEY_PAUSE,
		.desc = "Hold",
		.type = EV_KEY,
		.debounce_interval = 100,
	},
};

static struct gpio_keys_platform_data gta02_buttons_pdata = {
	.buttons = gta02_buttons,
	.nbuttons = ARRAY_SIZE(gta02_buttons),
};

static struct platform_device gta02_buttons_device = {
	.name = "gpio-keys",
	.id = -1,
	.dev = {
		.platform_data = &gta02_buttons_pdata,
	},
};

static void __init gta02_map_io(void)
{
	s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc));
	s3c24xx_init_clocks(12000000);
	s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs));
}


/* These are the guys that don't need to be children of PMU. */

static struct platform_device *gta02_devices[] __initdata = {
	&s3c_device_ohci,
	&s3c_device_wdt,
	&s3c_device_sdi,
	&s3c_device_usbgadget,
	&s3c_device_nand,
	&gta02_nor_flash,
	&s3c24xx_pwm_device,
	&s3c_device_iis,
	&s3c_device_i2c0,
	&gta02_dfbmcs320_device,
	&gta02_buttons_device,
	&s3c_device_adc,
	&s3c_device_ts,
};

/* These guys DO need to be children of PMU. */

static struct platform_device *gta02_devices_pmu_children[] = {
};


/*
 * This is called when pc50633 is probed, quite late in the day since it is an
 * I2C bus device.  Here we can define platform devices with the advantage that
 * we can mark the pcf50633 as the parent.  This makes them get suspended and
 * resumed with their parent the pcf50633 still around.  All devices whose
 * operation depends on something from pcf50633 must have this relationship
 * made explicit like this, or suspend and resume will become an unreliable
 * hellworld.
 */

static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf)
{
	int n;

	/* Grab a copy of the now probed PMU pointer. */
	gta02_pcf = pcf;

	for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
		gta02_devices_pmu_children[n]->dev.parent = pcf->dev;

	platform_add_devices(gta02_devices_pmu_children,
			     ARRAY_SIZE(gta02_devices_pmu_children));
}

static void gta02_poweroff(void)
{
	pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
}

static void __init gta02_machine_init(void)
{
	/* Set the panic callback to turn AUX LED on or off. */
	panic_blink = gta02_panic_blink;

	s3c_pm_init();

#ifdef CONFIG_CHARGER_PCF50633
	INIT_DELAYED_WORK(&gta02_charger_work, gta02_charger_worker);
#endif

	s3c24xx_udc_set_platdata(&gta02_udc_cfg);
	s3c24xx_ts_set_platdata(&gta02_ts_info);
	s3c_ohci_set_platdata(&gta02_usb_info);
	s3c_nand_set_platdata(&gta02_nand_info);
	s3c_i2c0_set_platdata(NULL);

	i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));

	platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
	pm_power_off = gta02_poweroff;

	regulator_has_full_constraints();
}


MACHINE_START(NEO1973_GTA02, "GTA02")
	/* Maintainer: Nelson Castillo <arhuaco@freaks-unidos.net> */
	.atag_offset	= 0x100,
	.map_io		= gta02_map_io,
	.init_irq	= s3c24xx_init_irq,
	.init_machine	= gta02_machine_init,
	.init_time	= s3c24xx_timer_init,
	.restart	= s3c244x_restart,
MACHINE_END
Commit	Line	Data
9d76295a	1	/*
9d76295a AG	2	* S3C2442 Machine Support for Openmoko GTA02 / FreeRunner.
	3	*
	4	* Copyright (C) 2006-2009 by Openmoko, Inc.
	5	* Authors: Harald Welte <laforge@openmoko.org>
	6	* Andy Green <andy@openmoko.org>
	7	* Werner Almesberger <werner@openmoko.org>
	8	* All rights reserved.
	9	*
	10	* This program is free software; you can redistribute it and/or
	11	* modify it under the terms of the GNU General Public License as
	12	* published by the Free Software Foundation; either version 2 of
	13	* the License, or (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	23	* MA 02111-1307 USA
9d76295a AG	24	*/
	25
	26	#include <linux/kernel.h>
	27	#include <linux/types.h>
	28	#include <linux/interrupt.h>
	29	#include <linux/list.h>
	30	#include <linux/delay.h>
	31	#include <linux/timer.h>
	32	#include <linux/init.h>
	33	#include <linux/gpio.h>
b2ca7871	34	#include <linux/gpio_keys.h>
9d76295a AG	35	#include <linux/workqueue.h>
	36	#include <linux/platform_device.h>
	37	#include <linux/serial_core.h>
b2ca7871 KK	38	#include <linux/input.h>
	39	#include <linux/io.h>
	40	#include <linux/i2c.h>
9d76295a AG	41
	42	#include <linux/mmc/host.h>
	43
b2ca7871 KK	44	#include <linux/mfd/pcf50633/adc.h>
	45	#include <linux/mfd/pcf50633/backlight.h>
	46	#include <linux/mfd/pcf50633/core.h>
	47	#include <linux/mfd/pcf50633/gpio.h>
	48	#include <linux/mfd/pcf50633/mbc.h>
	49	#include <linux/mfd/pcf50633/pmic.h>
	50
9d76295a AG	51	#include <linux/mtd/mtd.h>
	52	#include <linux/mtd/nand.h>
	53	#include <linux/mtd/nand_ecc.h>
	54	#include <linux/mtd/partitions.h>
	55	#include <linux/mtd/physmap.h>
9d76295a	56
9d76295a AG	57	#include <linux/regulator/machine.h>
9d76295a AG	58
b2ca7871 KK	59	#include <linux/spi/spi.h>
b2ca7871 KK	60	#include <linux/spi/s3c24xx.h>
003ddede	61
b2ca7871 KK	62	#include <asm/irq.h>
b2ca7871 KK	63	#include <asm/mach-types.h>
9d76295a AG	64	#include <asm/mach/arch.h>
	65	#include <asm/mach/map.h>
	66	#include <asm/mach/irq.h>
	67
b2ca7871 KK	68	#include <linux/platform_data/i2c-s3c2410.h>
	69	#include <linux/platform_data/mtd-nand-s3c2410.h>
	70	#include <linux/platform_data/touchscreen-s3c2410.h>
	71	#include <linux/platform_data/usb-ohci-s3c2410.h>
	72	#include <linux/platform_data/usb-s3c2410_udc.h>
9d76295a	73
9d76295a	74	#include <mach/fb.h>
9d76295a	75	#include <mach/hardware.h>
b2ca7871 KK	76	#include <mach/regs-gpio.h>
b2ca7871 KK	77	#include <mach/regs-irq.h>
9d76295a	78
9d76295a	79	#include <plat/cpu.h>
b2ca7871	80	#include <plat/devs.h>
9d76295a	81	#include <plat/gpio-cfg.h>
b2ca7871 KK	82	#include <plat/pm.h>
b2ca7871 KK	83	#include <plat/regs-serial.h>
d73af183	84
b27b0727	85	#include "common.h"
b2ca7871	86	#include "gta02.h"
9d76295a AG	87
	88	static struct pcf50633 *gta02_pcf;
	89
	90	/*
c7ff0d9c	91	* This gets called frequently when we paniced.
9d76295a AG	92	*/
9d76295a AG	93
c7ff0d9c	94	static long gta02_panic_blink(int state)
9d76295a AG	95	{
9d76295a AG	96	long delay = 0;
c7ff0d9c	97	char led;
9d76295a	98
c7ff0d9c	99	led = (state) ? 1 : 0;
9d76295a AG	100	gpio_direction_output(GTA02_GPIO_AUX_LED, led);
9d76295a AG	101
9d76295a AG	102	return delay;
	103	}
	104
	105
	106	static struct map_desc gta02_iodesc[] __initdata = {
	107	{
	108	.virtual = 0xe0000000,
	109	.pfn = __phys_to_pfn(S3C2410_CS3 + 0x01000000),
	110	.length = SZ_1M,
	111	.type = MT_DEVICE
	112	},
	113	};
	114
	115	#define UCON (S3C2410_UCON_DEFAULT \| S3C2443_UCON_RXERR_IRQEN)
	116	#define ULCON (S3C2410_LCON_CS8 \| S3C2410_LCON_PNONE \| S3C2410_LCON_STOPB)
	117	#define UFCON (S3C2410_UFCON_RXTRIG8 \| S3C2410_UFCON_FIFOMODE)
	118
	119	static struct s3c2410_uartcfg gta02_uartcfgs[] = {
	120	[0] = {
	121	.hwport = 0,
	122	.flags = 0,
	123	.ucon = UCON,
	124	.ulcon = ULCON,
	125	.ufcon = UFCON,
	126	},
	127	[1] = {
	128	.hwport = 1,
	129	.flags = 0,
	130	.ucon = UCON,
	131	.ulcon = ULCON,
	132	.ufcon = UFCON,
	133	},
	134	[2] = {
	135	.hwport = 2,
	136	.flags = 0,
	137	.ucon = UCON,
	138	.ulcon = ULCON,
	139	.ufcon = UFCON,
	140	},
	141	};
	142
	143	#ifdef CONFIG_CHARGER_PCF50633
	144	/*
	145	* On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin.
	146	* We use this to recognize that we can pull 1A from the USB socket.
	147	*
	148	* These constants are the measured pcf50633 ADC levels with the 1A
	149	* charger / 48K resistor, and with no pulldown resistor.
	150	*/
	151
	152	#define ADC_NOM_CHG_DETECT_1A 6
	153	#define ADC_NOM_CHG_DETECT_USB 43
	154
	155	static void
	156	gta02_configure_pmu_for_charger(struct pcf50633 pcf, void unused, int res)
	157	{
	158	int ma;
	159
	160	/* Interpret charger type */
	161	if (res < ((ADC_NOM_CHG_DETECT_USB + ADC_NOM_CHG_DETECT_1A) / 2)) {
	162
	163	/*
	164	* Sanity - stop GPO driving out now that we have a 1A charger
	165	* GPO controls USB Host power generation on GTA02
166	*/
167	pcf50633_gpio_set(pcf, PCF50633_GPO, 0);
168
169	ma = 1000;
170	} else
171	ma = 100;
172
173	pcf50633_mbc_usb_curlim_set(pcf, ma);
174	}
175
176	static struct delayed_work gta02_charger_work;
177	static int gta02_usb_vbus_draw;
178
179	static void gta02_charger_worker(struct work_struct *work)
180	{
181	if (gta02_usb_vbus_draw) {
182	pcf50633_mbc_usb_curlim_set(gta02_pcf, gta02_usb_vbus_draw);
183	return;
184	}
185
186	#ifdef CONFIG_PCF50633_ADC
187	pcf50633_adc_async_read(gta02_pcf,
188	PCF50633_ADCC1_MUX_ADCIN1,
189	PCF50633_ADCC1_AVERAGE_16,
190	gta02_configure_pmu_for_charger,
191	NULL);
192	#else
193	/*
194	* If the PCF50633 ADC is disabled we fallback to a
195	* 100mA limit for safety.
196	*/
197	pcf50633_mbc_usb_curlim_set(pcf, 100);
198	#endif
199	}
200
201	#define GTA02_CHARGER_CONFIGURE_TIMEOUT ((3000 * HZ) / 1000)
202
203	static void gta02_pmu_event_callback(struct pcf50633 *pcf, int irq)
204	{
205	if (irq == PCF50633_IRQ_USBINS) {
206	schedule_delayed_work(&gta02_charger_work,
207	GTA02_CHARGER_CONFIGURE_TIMEOUT);
208
209	return;
210	}
211
212	if (irq == PCF50633_IRQ_USBREM) {
213	cancel_delayed_work_sync(&gta02_charger_work);
214	gta02_usb_vbus_draw = 0;
215	}
216	}
217
218	static void gta02_udc_vbus_draw(unsigned int ma)
219	{
220	if (!gta02_pcf)
221	return;
222
223	gta02_usb_vbus_draw = ma;
224
225	schedule_delayed_work(&gta02_charger_work,
226	GTA02_CHARGER_CONFIGURE_TIMEOUT);
227	}
228	#else /* !CONFIG_CHARGER_PCF50633 */
229	#define gta02_pmu_event_callback NULL
230	#define gta02_udc_vbus_draw NULL
231	#endif
232
233	/*
234	* This is called when pc50633 is probed, unfortunately quite late in the
235	* day since it is an I2C bus device. Here we can belatedly define some
236	* platform devices with the advantage that we can mark the pcf50633 as the
237	* parent. This makes them get suspended and resumed with their parent
238	* the pcf50633 still around.
239	*/
240
241	static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf);
242
243
244	static char *gta02_batteries[] = {
245	"battery",
246	};
247
67e67df8 LPC	248	static struct pcf50633_bl_platform_data gta02_backlight_data = {
	249	.default_brightness = 0x3f,
	250	.default_brightness_limit = 0,
	251	.ramp_time = 5,
	252	};
	253
4cfb7b7c	254	static struct pcf50633_platform_data gta02_pcf_pdata = {
9d76295a AG	255	.resumers = {
	256	[0] = PCF50633_INT1_USBINS \|
	257	PCF50633_INT1_USBREM \|
	258	PCF50633_INT1_ALARM,
	259	[1] = PCF50633_INT2_ONKEYF,
	260	[2] = PCF50633_INT3_ONKEY1S,
	261	[3] = PCF50633_INT4_LOWSYS \|
	262	PCF50633_INT4_LOWBAT \|
	263	PCF50633_INT4_HIGHTMP,
	264	},
	265
	266	.batteries = gta02_batteries,
	267	.num_batteries = ARRAY_SIZE(gta02_batteries),
2f745dde LPC	268
	269	.charger_reference_current_ma = 1000,
	270
67e67df8 LPC	271	.backlight_data = &gta02_backlight_data,
67e67df8 LPC	272
9d76295a AG	273	.reg_init_data = {
	274	[PCF50633_REGULATOR_AUTO] = {
	275	.constraints = {
	276	.min_uV = 3300000,
	277	.max_uV = 3300000,
	278	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	279	.always_on = 1,
	280	.apply_uV = 1,
9d76295a AG	281	},
	282	},
	283	[PCF50633_REGULATOR_DOWN1] = {
	284	.constraints = {
	285	.min_uV = 1300000,
	286	.max_uV = 1600000,
	287	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	288	.always_on = 1,
	289	.apply_uV = 1,
	290	},
	291	},
	292	[PCF50633_REGULATOR_DOWN2] = {
	293	.constraints = {
	294	.min_uV = 1800000,
	295	.max_uV = 1800000,
	296	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	297	.apply_uV = 1,
	298	.always_on = 1,
9d76295a AG	299	},
	300	},
	301	[PCF50633_REGULATOR_HCLDO] = {
	302	.constraints = {
	303	.min_uV = 2000000,
	304	.max_uV = 3300000,
	305	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440 LPC	306	.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE \|
7cda3440 LPC	307	REGULATOR_CHANGE_STATUS,
9d76295a AG	308	},
	309	},
	310	[PCF50633_REGULATOR_LDO1] = {
	311	.constraints = {
	312	.min_uV = 3300000,
	313	.max_uV = 3300000,
	314	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440	315	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
9d76295a	316	.apply_uV = 1,
9d76295a AG	317	},
	318	},
	319	[PCF50633_REGULATOR_LDO2] = {
	320	.constraints = {
	321	.min_uV = 3300000,
	322	.max_uV = 3300000,
	323	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	324	.apply_uV = 1,
	325	},
	326	},
	327	[PCF50633_REGULATOR_LDO3] = {
	328	.constraints = {
	329	.min_uV = 3000000,
	330	.max_uV = 3000000,
	331	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	332	.apply_uV = 1,
	333	},
	334	},
	335	[PCF50633_REGULATOR_LDO4] = {
	336	.constraints = {
	337	.min_uV = 3200000,
	338	.max_uV = 3200000,
	339	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440	340	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
9d76295a AG	341	.apply_uV = 1,
	342	},
	343	},
	344	[PCF50633_REGULATOR_LDO5] = {
	345	.constraints = {
	346	.min_uV = 3000000,
	347	.max_uV = 3000000,
	348	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440	349	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
9d76295a	350	.apply_uV = 1,
9d76295a AG	351	},
	352	},
	353	[PCF50633_REGULATOR_LDO6] = {
	354	.constraints = {
	355	.min_uV = 3000000,
	356	.max_uV = 3000000,
	357	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	358	},
	359	},
	360	[PCF50633_REGULATOR_MEMLDO] = {
	361	.constraints = {
	362	.min_uV = 1800000,
	363	.max_uV = 1800000,
	364	.valid_modes_mask = REGULATOR_MODE_NORMAL,
9d76295a AG	365	},
	366	},
	367
	368	},
	369	.probe_done = gta02_pmu_attach_child_devices,
	370	.mbc_event_callback = gta02_pmu_event_callback,
	371	};
	372
	373
	374	/* NOR Flash. */
	375
	376	#define GTA02_FLASH_BASE 0x18000000 /* GCS3 */
	377	#define GTA02_FLASH_SIZE 0x200000 /* 2MBytes */
	378
	379	static struct physmap_flash_data gta02_nor_flash_data = {
	380	.width = 2,
	381	};
	382
1c2bf1d3 TB	383	static struct resource gta02_nor_flash_resource =
1c2bf1d3 TB	384	DEFINE_RES_MEM(GTA02_FLASH_BASE, GTA02_FLASH_SIZE);
9d76295a AG	385
	386	static struct platform_device gta02_nor_flash = {
	387	.name = "physmap-flash",
	388	.id = 0,
	389	.dev = {
	390	.platform_data = &gta02_nor_flash_data,
	391	},
	392	.resource = &gta02_nor_flash_resource,
	393	.num_resources = 1,
	394	};
	395
	396
4cfb7b7c	397	static struct platform_device s3c24xx_pwm_device = {
9d76295a AG	398	.name = "s3c24xx_pwm",
	399	.num_resources = 0,
	400	};
	401
6caa15d0 LPC	402	static struct platform_device gta02_dfbmcs320_device = {
	403	.name = "dfbmcs320",
	404	};
	405
9d76295a AG	406	static struct i2c_board_info gta02_i2c_devs[] __initdata = {
	407	{
	408	I2C_BOARD_INFO("pcf50633", 0x73),
	409	.irq = GTA02_IRQ_PCF50633,
	410	.platform_data = &gta02_pcf_pdata,
	411	},
	412	{
	413	I2C_BOARD_INFO("wm8753", 0x1a),
	414	},
	415	};
	416
2a3a1804	417	static struct s3c2410_nand_set __initdata gta02_nand_sets[] = {
9d76295a AG	418	[0] = {
	419	/*
	420	* This name is also hard-coded in the boot loaders, so
	421	* changing it would would require all users to upgrade
	422	* their boot loaders, some of which are stored in a NOR
	423	* that is considered to be immutable.
	424	*/
	425	.name = "neo1973-nand",
	426	.nr_chips = 1,
76609a69	427	.flash_bbt = 1,
9d76295a AG	428	},
	429	};
	430
	431	/*
	432	* Choose a set of timings derived from S3C@2442B MCP54
	433	* data sheet (K5D2G13ACM-D075 MCP Memory).
	434	*/
	435
2a3a1804	436	static struct s3c2410_platform_nand __initdata gta02_nand_info = {
9d76295a AG	437	.tacls = 0,
	438	.twrph0 = 25,
	439	.twrph1 = 15,
	440	.nr_sets = ARRAY_SIZE(gta02_nand_sets),
	441	.sets = gta02_nand_sets,
	442	};
	443
	444
9d76295a	445	/* Get PMU to set USB current limit accordingly. */
e27c3c5c	446	static struct s3c2410_udc_mach_info gta02_udc_cfg __initdata = {
9d76295a	447	.vbus_draw = gta02_udc_vbus_draw,
e27c3c5c	448	.pullup_pin = GTA02_GPIO_USB_PULLUP,
9d76295a AG	449	};
9d76295a AG	450
9d76295a	451	/* USB */
f1267520	452	static struct s3c2410_hcd_info gta02_usb_info __initdata = {
9d76295a AG	453	.port[0] = {
	454	.flags = S3C_HCDFLG_USED,
	455	},
	456	.port[1] = {
	457	.flags = 0,
	458	},
	459	};
	460
d73af183 LPC	461	/* Touchscreen */
	462	static struct s3c2410_ts_mach_info gta02_ts_info = {
	463	.delay = 10000,
	464	.presc = 0xff, /* slow as we can go */
	465	.oversampling_shift = 2,
	466	};
	467
003ddede LPC	468	/* Buttons */
	469	static struct gpio_keys_button gta02_buttons[] = {
	470	{
	471	.gpio = GTA02_GPIO_AUX_KEY,
	472	.code = KEY_PHONE,
	473	.desc = "Aux",
	474	.type = EV_KEY,
	475	.debounce_interval = 100,
	476	},
	477	{
	478	.gpio = GTA02_GPIO_HOLD_KEY,
	479	.code = KEY_PAUSE,
	480	.desc = "Hold",
	481	.type = EV_KEY,
	482	.debounce_interval = 100,
	483	},
	484	};
	485
	486	static struct gpio_keys_platform_data gta02_buttons_pdata = {
	487	.buttons = gta02_buttons,
	488	.nbuttons = ARRAY_SIZE(gta02_buttons),
	489	};
	490
	491	static struct platform_device gta02_buttons_device = {
	492	.name = "gpio-keys",
	493	.id = -1,
	494	.dev = {
	495	.platform_data = &gta02_buttons_pdata,
	496	},
	497	};
9d76295a AG	498
	499	static void __init gta02_map_io(void)
	500	{
	501	s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc));
	502	s3c24xx_init_clocks(12000000);
	503	s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs));
	504	}
	505
	506
	507	/* These are the guys that don't need to be children of PMU. */
	508
	509	static struct platform_device *gta02_devices[] __initdata = {
b813248c	510	&s3c_device_ohci,
9d76295a AG	511	&s3c_device_wdt,
	512	&s3c_device_sdi,
	513	&s3c_device_usbgadget,
	514	&s3c_device_nand,
	515	&gta02_nor_flash,
	516	&s3c24xx_pwm_device,
	517	&s3c_device_iis,
	518	&s3c_device_i2c0,
6caa15d0	519	&gta02_dfbmcs320_device,
003ddede	520	&gta02_buttons_device,
d73af183 LPC	521	&s3c_device_adc,
d73af183 LPC	522	&s3c_device_ts,
9d76295a AG	523	};
	524
	525	/* These guys DO need to be children of PMU. */
	526
	527	static struct platform_device *gta02_devices_pmu_children[] = {
9d76295a AG	528	};
	529
	530
	531	/*
	532	* This is called when pc50633 is probed, quite late in the day since it is an
	533	* I2C bus device. Here we can define platform devices with the advantage that
	534	* we can mark the pcf50633 as the parent. This makes them get suspended and
	535	* resumed with their parent the pcf50633 still around. All devices whose
	536	* operation depends on something from pcf50633 must have this relationship
	537	* made explicit like this, or suspend and resume will become an unreliable
	538	* hellworld.
	539	*/
	540
	541	static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf)
	542	{
	543	int n;
	544
	545	/* Grab a copy of the now probed PMU pointer. */
	546	gta02_pcf = pcf;
	547
	548	for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
	549	gta02_devices_pmu_children[n]->dev.parent = pcf->dev;
	550
	551	platform_add_devices(gta02_devices_pmu_children,
	552	ARRAY_SIZE(gta02_devices_pmu_children));
	553	}
	554
	555	static void gta02_poweroff(void)
	556	{
	557	pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
	558	}
	559
	560	static void __init gta02_machine_init(void)
	561	{
c7ff0d9c	562	/* Set the panic callback to turn AUX LED on or off. */
9d76295a AG	563	panic_blink = gta02_panic_blink;
	564
	565	s3c_pm_init();
	566
	567	#ifdef CONFIG_CHARGER_PCF50633
	568	INIT_DELAYED_WORK(&gta02_charger_work, gta02_charger_worker);
	569	#endif
	570
9d76295a	571	s3c24xx_udc_set_platdata(&gta02_udc_cfg);
d73af183	572	s3c24xx_ts_set_platdata(&gta02_ts_info);
f1267520	573	s3c_ohci_set_platdata(&gta02_usb_info);
2a3a1804	574	s3c_nand_set_platdata(&gta02_nand_info);
9d76295a AG	575	s3c_i2c0_set_platdata(NULL);
	576
	577	i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));
	578
	579	platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
	580	pm_power_off = gta02_poweroff;
3c861b88 LPC	581
3c861b88 LPC	582	regulator_has_full_constraints();
9d76295a AG	583	}
	584
	585
	586	MACHINE_START(NEO1973_GTA02, "GTA02")
	587	/* Maintainer: Nelson Castillo <arhuaco@freaks-unidos.net> */
69d50710	588	.atag_offset = 0x100,
9d76295a AG	589	.map_io = gta02_map_io,
	590	.init_irq = s3c24xx_init_irq,
	591	.init_machine = gta02_machine_init,
6bb27d73	592	.init_time = s3c24xx_timer_init,
c1ba544f	593	.restart = s3c244x_restart,
9d76295a	594	MACHINE_END