[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 <plat/samsung-time.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));
	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
}


/* 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	= s3c2442_init_irq,
	.init_machine	= gta02_machine_init,
	.init_time	= samsung_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>
7f78b6eb	84	#include <plat/samsung-time.h>
d73af183	85
b27b0727	86	#include "common.h"
b2ca7871	87	#include "gta02.h"
9d76295a AG	88
	89	static struct pcf50633 *gta02_pcf;
	90
	91	/*
c7ff0d9c	92	* This gets called frequently when we paniced.
9d76295a AG	93	*/
9d76295a AG	94
c7ff0d9c	95	static long gta02_panic_blink(int state)
9d76295a AG	96	{
9d76295a AG	97	long delay = 0;
c7ff0d9c	98	char led;
9d76295a	99
c7ff0d9c	100	led = (state) ? 1 : 0;
9d76295a AG	101	gpio_direction_output(GTA02_GPIO_AUX_LED, led);
9d76295a AG	102
9d76295a AG	103	return delay;
	104	}
	105
	106
	107	static struct map_desc gta02_iodesc[] __initdata = {
	108	{
	109	.virtual = 0xe0000000,
	110	.pfn = __phys_to_pfn(S3C2410_CS3 + 0x01000000),
	111	.length = SZ_1M,
	112	.type = MT_DEVICE
	113	},
	114	};
	115
	116	#define UCON (S3C2410_UCON_DEFAULT \| S3C2443_UCON_RXERR_IRQEN)
	117	#define ULCON (S3C2410_LCON_CS8 \| S3C2410_LCON_PNONE \| S3C2410_LCON_STOPB)
	118	#define UFCON (S3C2410_UFCON_RXTRIG8 \| S3C2410_UFCON_FIFOMODE)
	119
	120	static struct s3c2410_uartcfg gta02_uartcfgs[] = {
	121	[0] = {
	122	.hwport = 0,
	123	.flags = 0,
	124	.ucon = UCON,
	125	.ulcon = ULCON,
	126	.ufcon = UFCON,
	127	},
	128	[1] = {
	129	.hwport = 1,
	130	.flags = 0,
	131	.ucon = UCON,
	132	.ulcon = ULCON,
	133	.ufcon = UFCON,
	134	},
	135	[2] = {
	136	.hwport = 2,
	137	.flags = 0,
	138	.ucon = UCON,
	139	.ulcon = ULCON,
	140	.ufcon = UFCON,
	141	},
	142	};
	143
	144	#ifdef CONFIG_CHARGER_PCF50633
	145	/*
	146	* On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin.
	147	* We use this to recognize that we can pull 1A from the USB socket.
	148	*
	149	* These constants are the measured pcf50633 ADC levels with the 1A
	150	* charger / 48K resistor, and with no pulldown resistor.
	151	*/
	152
	153	#define ADC_NOM_CHG_DETECT_1A 6
	154	#define ADC_NOM_CHG_DETECT_USB 43
	155
	156	static void
	157	gta02_configure_pmu_for_charger(struct pcf50633 pcf, void unused, int res)
	158	{
	159	int ma;
	160
	161	/* Interpret charger type */
	162	if (res < ((ADC_NOM_CHG_DETECT_USB + ADC_NOM_CHG_DETECT_1A) / 2)) {
	163
	164	/*
	165	* Sanity - stop GPO driving out now that we have a 1A charger
	166	* GPO controls USB Host power generation on GTA02
167	*/
168	pcf50633_gpio_set(pcf, PCF50633_GPO, 0);
169
170	ma = 1000;
171	} else
172	ma = 100;
173
174	pcf50633_mbc_usb_curlim_set(pcf, ma);
175	}
176
177	static struct delayed_work gta02_charger_work;
178	static int gta02_usb_vbus_draw;
179
180	static void gta02_charger_worker(struct work_struct *work)
181	{
182	if (gta02_usb_vbus_draw) {
183	pcf50633_mbc_usb_curlim_set(gta02_pcf, gta02_usb_vbus_draw);
184	return;
185	}
186
187	#ifdef CONFIG_PCF50633_ADC
188	pcf50633_adc_async_read(gta02_pcf,
189	PCF50633_ADCC1_MUX_ADCIN1,
190	PCF50633_ADCC1_AVERAGE_16,
191	gta02_configure_pmu_for_charger,
192	NULL);
193	#else
194	/*
195	* If the PCF50633 ADC is disabled we fallback to a
196	* 100mA limit for safety.
197	*/
198	pcf50633_mbc_usb_curlim_set(pcf, 100);
199	#endif
200	}
201
202	#define GTA02_CHARGER_CONFIGURE_TIMEOUT ((3000 * HZ) / 1000)
203
204	static void gta02_pmu_event_callback(struct pcf50633 *pcf, int irq)
205	{
206	if (irq == PCF50633_IRQ_USBINS) {
207	schedule_delayed_work(&gta02_charger_work,
208	GTA02_CHARGER_CONFIGURE_TIMEOUT);
209
210	return;
211	}
212
213	if (irq == PCF50633_IRQ_USBREM) {
214	cancel_delayed_work_sync(&gta02_charger_work);
215	gta02_usb_vbus_draw = 0;
216	}
217	}
218
219	static void gta02_udc_vbus_draw(unsigned int ma)
220	{
221	if (!gta02_pcf)
222	return;
223
224	gta02_usb_vbus_draw = ma;
225
226	schedule_delayed_work(&gta02_charger_work,
227	GTA02_CHARGER_CONFIGURE_TIMEOUT);
228	}
229	#else /* !CONFIG_CHARGER_PCF50633 */
230	#define gta02_pmu_event_callback NULL
231	#define gta02_udc_vbus_draw NULL
232	#endif
233
234	/*
235	* This is called when pc50633 is probed, unfortunately quite late in the
236	* day since it is an I2C bus device. Here we can belatedly define some
237	* platform devices with the advantage that we can mark the pcf50633 as the
238	* parent. This makes them get suspended and resumed with their parent
239	* the pcf50633 still around.
240	*/
241
242	static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf);
243
244
245	static char *gta02_batteries[] = {
246	"battery",
247	};
248
67e67df8 LPC	249	static struct pcf50633_bl_platform_data gta02_backlight_data = {
	250	.default_brightness = 0x3f,
	251	.default_brightness_limit = 0,
	252	.ramp_time = 5,
	253	};
	254
4cfb7b7c	255	static struct pcf50633_platform_data gta02_pcf_pdata = {
9d76295a AG	256	.resumers = {
	257	[0] = PCF50633_INT1_USBINS \|
	258	PCF50633_INT1_USBREM \|
	259	PCF50633_INT1_ALARM,
	260	[1] = PCF50633_INT2_ONKEYF,
	261	[2] = PCF50633_INT3_ONKEY1S,
	262	[3] = PCF50633_INT4_LOWSYS \|
	263	PCF50633_INT4_LOWBAT \|
	264	PCF50633_INT4_HIGHTMP,
	265	},
	266
	267	.batteries = gta02_batteries,
	268	.num_batteries = ARRAY_SIZE(gta02_batteries),
2f745dde LPC	269
	270	.charger_reference_current_ma = 1000,
	271
67e67df8 LPC	272	.backlight_data = &gta02_backlight_data,
67e67df8 LPC	273
9d76295a AG	274	.reg_init_data = {
	275	[PCF50633_REGULATOR_AUTO] = {
	276	.constraints = {
	277	.min_uV = 3300000,
	278	.max_uV = 3300000,
	279	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	280	.always_on = 1,
	281	.apply_uV = 1,
9d76295a AG	282	},
	283	},
	284	[PCF50633_REGULATOR_DOWN1] = {
	285	.constraints = {
	286	.min_uV = 1300000,
	287	.max_uV = 1600000,
	288	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	289	.always_on = 1,
	290	.apply_uV = 1,
	291	},
	292	},
	293	[PCF50633_REGULATOR_DOWN2] = {
	294	.constraints = {
	295	.min_uV = 1800000,
	296	.max_uV = 1800000,
	297	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	298	.apply_uV = 1,
	299	.always_on = 1,
9d76295a AG	300	},
	301	},
	302	[PCF50633_REGULATOR_HCLDO] = {
	303	.constraints = {
	304	.min_uV = 2000000,
	305	.max_uV = 3300000,
	306	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440 LPC	307	.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE \|
7cda3440 LPC	308	REGULATOR_CHANGE_STATUS,
9d76295a AG	309	},
	310	},
	311	[PCF50633_REGULATOR_LDO1] = {
	312	.constraints = {
	313	.min_uV = 3300000,
	314	.max_uV = 3300000,
	315	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440	316	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
9d76295a	317	.apply_uV = 1,
9d76295a AG	318	},
	319	},
	320	[PCF50633_REGULATOR_LDO2] = {
	321	.constraints = {
	322	.min_uV = 3300000,
	323	.max_uV = 3300000,
	324	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	325	.apply_uV = 1,
	326	},
	327	},
	328	[PCF50633_REGULATOR_LDO3] = {
	329	.constraints = {
	330	.min_uV = 3000000,
	331	.max_uV = 3000000,
	332	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	333	.apply_uV = 1,
	334	},
	335	},
	336	[PCF50633_REGULATOR_LDO4] = {
	337	.constraints = {
	338	.min_uV = 3200000,
	339	.max_uV = 3200000,
	340	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440	341	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
9d76295a AG	342	.apply_uV = 1,
	343	},
	344	},
	345	[PCF50633_REGULATOR_LDO5] = {
	346	.constraints = {
	347	.min_uV = 3000000,
	348	.max_uV = 3000000,
	349	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440	350	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
9d76295a	351	.apply_uV = 1,
9d76295a AG	352	},
	353	},
	354	[PCF50633_REGULATOR_LDO6] = {
	355	.constraints = {
	356	.min_uV = 3000000,
	357	.max_uV = 3000000,
	358	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	359	},
	360	},
	361	[PCF50633_REGULATOR_MEMLDO] = {
	362	.constraints = {
	363	.min_uV = 1800000,
	364	.max_uV = 1800000,
	365	.valid_modes_mask = REGULATOR_MODE_NORMAL,
9d76295a AG	366	},
	367	},
	368
	369	},
	370	.probe_done = gta02_pmu_attach_child_devices,
	371	.mbc_event_callback = gta02_pmu_event_callback,
	372	};
	373
	374
	375	/* NOR Flash. */
	376
	377	#define GTA02_FLASH_BASE 0x18000000 /* GCS3 */
	378	#define GTA02_FLASH_SIZE 0x200000 /* 2MBytes */
	379
	380	static struct physmap_flash_data gta02_nor_flash_data = {
	381	.width = 2,
	382	};
	383
1c2bf1d3 TB	384	static struct resource gta02_nor_flash_resource =
1c2bf1d3 TB	385	DEFINE_RES_MEM(GTA02_FLASH_BASE, GTA02_FLASH_SIZE);
9d76295a AG	386
	387	static struct platform_device gta02_nor_flash = {
	388	.name = "physmap-flash",
	389	.id = 0,
	390	.dev = {
	391	.platform_data = &gta02_nor_flash_data,
	392	},
	393	.resource = &gta02_nor_flash_resource,
	394	.num_resources = 1,
	395	};
	396
	397
4cfb7b7c	398	static struct platform_device s3c24xx_pwm_device = {
9d76295a AG	399	.name = "s3c24xx_pwm",
	400	.num_resources = 0,
	401	};
	402
6caa15d0 LPC	403	static struct platform_device gta02_dfbmcs320_device = {
	404	.name = "dfbmcs320",
	405	};
	406
9d76295a AG	407	static struct i2c_board_info gta02_i2c_devs[] __initdata = {
	408	{
	409	I2C_BOARD_INFO("pcf50633", 0x73),
	410	.irq = GTA02_IRQ_PCF50633,
	411	.platform_data = &gta02_pcf_pdata,
	412	},
	413	{
	414	I2C_BOARD_INFO("wm8753", 0x1a),
	415	},
	416	};
	417
2a3a1804	418	static struct s3c2410_nand_set __initdata gta02_nand_sets[] = {
9d76295a AG	419	[0] = {
	420	/*
	421	* This name is also hard-coded in the boot loaders, so
	422	* changing it would would require all users to upgrade
	423	* their boot loaders, some of which are stored in a NOR
	424	* that is considered to be immutable.
	425	*/
	426	.name = "neo1973-nand",
	427	.nr_chips = 1,
76609a69	428	.flash_bbt = 1,
9d76295a AG	429	},
	430	};
	431
	432	/*
	433	* Choose a set of timings derived from S3C@2442B MCP54
	434	* data sheet (K5D2G13ACM-D075 MCP Memory).
	435	*/
	436
2a3a1804	437	static struct s3c2410_platform_nand __initdata gta02_nand_info = {
9d76295a AG	438	.tacls = 0,
	439	.twrph0 = 25,
	440	.twrph1 = 15,
	441	.nr_sets = ARRAY_SIZE(gta02_nand_sets),
	442	.sets = gta02_nand_sets,
	443	};
	444
	445
9d76295a	446	/* Get PMU to set USB current limit accordingly. */
e27c3c5c	447	static struct s3c2410_udc_mach_info gta02_udc_cfg __initdata = {
9d76295a	448	.vbus_draw = gta02_udc_vbus_draw,
e27c3c5c	449	.pullup_pin = GTA02_GPIO_USB_PULLUP,
9d76295a AG	450	};
9d76295a AG	451
9d76295a	452	/* USB */
f1267520	453	static struct s3c2410_hcd_info gta02_usb_info __initdata = {
9d76295a AG	454	.port[0] = {
	455	.flags = S3C_HCDFLG_USED,
	456	},
	457	.port[1] = {
	458	.flags = 0,
	459	},
	460	};
	461
d73af183 LPC	462	/* Touchscreen */
	463	static struct s3c2410_ts_mach_info gta02_ts_info = {
	464	.delay = 10000,
	465	.presc = 0xff, /* slow as we can go */
	466	.oversampling_shift = 2,
	467	};
	468
003ddede LPC	469	/* Buttons */
	470	static struct gpio_keys_button gta02_buttons[] = {
	471	{
	472	.gpio = GTA02_GPIO_AUX_KEY,
	473	.code = KEY_PHONE,
	474	.desc = "Aux",
	475	.type = EV_KEY,
	476	.debounce_interval = 100,
	477	},
	478	{
	479	.gpio = GTA02_GPIO_HOLD_KEY,
	480	.code = KEY_PAUSE,
	481	.desc = "Hold",
	482	.type = EV_KEY,
	483	.debounce_interval = 100,
	484	},
	485	};
	486
	487	static struct gpio_keys_platform_data gta02_buttons_pdata = {
	488	.buttons = gta02_buttons,
	489	.nbuttons = ARRAY_SIZE(gta02_buttons),
	490	};
	491
	492	static struct platform_device gta02_buttons_device = {
	493	.name = "gpio-keys",
	494	.id = -1,
	495	.dev = {
	496	.platform_data = &gta02_buttons_pdata,
	497	},
	498	};
9d76295a AG	499
	500	static void __init gta02_map_io(void)
	501	{
	502	s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc));
	503	s3c24xx_init_clocks(12000000);
	504	s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs));
7f78b6eb	505	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
9d76295a AG	506	}
	507
	508
	509	/* These are the guys that don't need to be children of PMU. */
	510
	511	static struct platform_device *gta02_devices[] __initdata = {
b813248c	512	&s3c_device_ohci,
9d76295a AG	513	&s3c_device_wdt,
	514	&s3c_device_sdi,
	515	&s3c_device_usbgadget,
	516	&s3c_device_nand,
	517	&gta02_nor_flash,
	518	&s3c24xx_pwm_device,
	519	&s3c_device_iis,
	520	&s3c_device_i2c0,
6caa15d0	521	&gta02_dfbmcs320_device,
003ddede	522	&gta02_buttons_device,
d73af183 LPC	523	&s3c_device_adc,
d73af183 LPC	524	&s3c_device_ts,
9d76295a AG	525	};
	526
	527	/* These guys DO need to be children of PMU. */
	528
	529	static struct platform_device *gta02_devices_pmu_children[] = {
9d76295a AG	530	};
	531
	532
	533	/*
	534	* This is called when pc50633 is probed, quite late in the day since it is an
	535	* I2C bus device. Here we can define platform devices with the advantage that
	536	* we can mark the pcf50633 as the parent. This makes them get suspended and
	537	* resumed with their parent the pcf50633 still around. All devices whose
	538	* operation depends on something from pcf50633 must have this relationship
	539	* made explicit like this, or suspend and resume will become an unreliable
	540	* hellworld.
	541	*/
	542
	543	static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf)
	544	{
	545	int n;
	546
	547	/* Grab a copy of the now probed PMU pointer. */
	548	gta02_pcf = pcf;
	549
	550	for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
	551	gta02_devices_pmu_children[n]->dev.parent = pcf->dev;
	552
	553	platform_add_devices(gta02_devices_pmu_children,
	554	ARRAY_SIZE(gta02_devices_pmu_children));
	555	}
	556
	557	static void gta02_poweroff(void)
	558	{
	559	pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
	560	}
	561
	562	static void __init gta02_machine_init(void)
	563	{
c7ff0d9c	564	/* Set the panic callback to turn AUX LED on or off. */
9d76295a AG	565	panic_blink = gta02_panic_blink;
	566
	567	s3c_pm_init();
	568
	569	#ifdef CONFIG_CHARGER_PCF50633
	570	INIT_DELAYED_WORK(&gta02_charger_work, gta02_charger_worker);
	571	#endif
	572
9d76295a	573	s3c24xx_udc_set_platdata(&gta02_udc_cfg);
d73af183	574	s3c24xx_ts_set_platdata(&gta02_ts_info);
f1267520	575	s3c_ohci_set_platdata(&gta02_usb_info);
2a3a1804	576	s3c_nand_set_platdata(&gta02_nand_info);
9d76295a AG	577	s3c_i2c0_set_platdata(NULL);
	578
	579	i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));
	580
	581	platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
	582	pm_power_off = gta02_poweroff;
3c861b88 LPC	583
3c861b88 LPC	584	regulator_has_full_constraints();
9d76295a AG	585	}
	586
	587
	588	MACHINE_START(NEO1973_GTA02, "GTA02")
	589	/* Maintainer: Nelson Castillo <arhuaco@freaks-unidos.net> */
69d50710	590	.atag_offset = 0x100,
9d76295a	591	.map_io = gta02_map_io,
ce6c164b	592	.init_irq = s3c2442_init_irq,
9d76295a	593	.init_machine = gta02_machine_init,
7f78b6eb	594	.init_time = samsung_timer_init,
c1ba544f	595	.restart = s3c244x_restart,
9d76295a	596	MACHINE_END