[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/serial_s3c.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 <mach/gpio-samsung.h>

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

#ifdef CONFIG_PCF50633_ADC
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);
}
#endif

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(gta02_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_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();
}

static void __init gta02_init_time(void)
{
	s3c2442_init_clocks(12000000);
	samsung_timer_init();
}

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	= gta02_init_time,
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>
334a1c70	38	#include <linux/serial_s3c.h>
b2ca7871 KK	39	#include <linux/input.h>
	40	#include <linux/io.h>
	41	#include <linux/i2c.h>
9d76295a AG	42
	43	#include <linux/mmc/host.h>
	44
b2ca7871 KK	45	#include <linux/mfd/pcf50633/adc.h>
	46	#include <linux/mfd/pcf50633/backlight.h>
	47	#include <linux/mfd/pcf50633/core.h>
	48	#include <linux/mfd/pcf50633/gpio.h>
	49	#include <linux/mfd/pcf50633/mbc.h>
	50	#include <linux/mfd/pcf50633/pmic.h>
	51
9d76295a AG	52	#include <linux/mtd/mtd.h>
	53	#include <linux/mtd/nand.h>
	54	#include <linux/mtd/nand_ecc.h>
	55	#include <linux/mtd/partitions.h>
	56	#include <linux/mtd/physmap.h>
9d76295a	57
9d76295a AG	58	#include <linux/regulator/machine.h>
9d76295a AG	59
b2ca7871 KK	60	#include <linux/spi/spi.h>
b2ca7871 KK	61	#include <linux/spi/s3c24xx.h>
003ddede	62
b2ca7871 KK	63	#include <asm/irq.h>
b2ca7871 KK	64	#include <asm/mach-types.h>
9d76295a AG	65	#include <asm/mach/arch.h>
	66	#include <asm/mach/map.h>
	67	#include <asm/mach/irq.h>
	68
b2ca7871 KK	69	#include <linux/platform_data/i2c-s3c2410.h>
	70	#include <linux/platform_data/mtd-nand-s3c2410.h>
	71	#include <linux/platform_data/touchscreen-s3c2410.h>
	72	#include <linux/platform_data/usb-ohci-s3c2410.h>
	73	#include <linux/platform_data/usb-s3c2410_udc.h>
9d76295a	74
9d76295a	75	#include <mach/fb.h>
9d76295a	76	#include <mach/hardware.h>
b2ca7871 KK	77	#include <mach/regs-gpio.h>
b2ca7871 KK	78	#include <mach/regs-irq.h>
b0161caa	79	#include <mach/gpio-samsung.h>
9d76295a	80
9d76295a	81	#include <plat/cpu.h>
b2ca7871	82	#include <plat/devs.h>
9d76295a	83	#include <plat/gpio-cfg.h>
b2ca7871	84	#include <plat/pm.h>
7f78b6eb	85	#include <plat/samsung-time.h>
d73af183	86
b27b0727	87	#include "common.h"
b2ca7871	88	#include "gta02.h"
9d76295a AG	89
	90	static struct pcf50633 *gta02_pcf;
	91
	92	/*
c7ff0d9c	93	* This gets called frequently when we paniced.
9d76295a AG	94	*/
9d76295a AG	95
c7ff0d9c	96	static long gta02_panic_blink(int state)
9d76295a AG	97	{
9d76295a AG	98	long delay = 0;
c7ff0d9c	99	char led;
9d76295a	100
c7ff0d9c	101	led = (state) ? 1 : 0;
9d76295a AG	102	gpio_direction_output(GTA02_GPIO_AUX_LED, led);
9d76295a AG	103
9d76295a AG	104	return delay;
	105	}
	106
	107
	108	static struct map_desc gta02_iodesc[] __initdata = {
	109	{
	110	.virtual = 0xe0000000,
	111	.pfn = __phys_to_pfn(S3C2410_CS3 + 0x01000000),
	112	.length = SZ_1M,
	113	.type = MT_DEVICE
	114	},
	115	};
	116
	117	#define UCON (S3C2410_UCON_DEFAULT \| S3C2443_UCON_RXERR_IRQEN)
	118	#define ULCON (S3C2410_LCON_CS8 \| S3C2410_LCON_PNONE \| S3C2410_LCON_STOPB)
	119	#define UFCON (S3C2410_UFCON_RXTRIG8 \| S3C2410_UFCON_FIFOMODE)
	120
	121	static struct s3c2410_uartcfg gta02_uartcfgs[] = {
	122	[0] = {
	123	.hwport = 0,
	124	.flags = 0,
	125	.ucon = UCON,
	126	.ulcon = ULCON,
	127	.ufcon = UFCON,
	128	},
	129	[1] = {
	130	.hwport = 1,
	131	.flags = 0,
	132	.ucon = UCON,
	133	.ulcon = ULCON,
	134	.ufcon = UFCON,
	135	},
	136	[2] = {
	137	.hwport = 2,
	138	.flags = 0,
	139	.ucon = UCON,
	140	.ulcon = ULCON,
	141	.ufcon = UFCON,
	142	},
	143	};
	144
	145	#ifdef CONFIG_CHARGER_PCF50633
	146	/*
	147	* On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin.
	148	* We use this to recognize that we can pull 1A from the USB socket.
	149	*
	150	* These constants are the measured pcf50633 ADC levels with the 1A
	151	* charger / 48K resistor, and with no pulldown resistor.
	152	*/
	153
	154	#define ADC_NOM_CHG_DETECT_1A 6
	155	#define ADC_NOM_CHG_DETECT_USB 43
	156
8db9a202	157	#ifdef CONFIG_PCF50633_ADC
9d76295a AG	158	static void
	159	gta02_configure_pmu_for_charger(struct pcf50633 pcf, void unused, int res)
	160	{
	161	int ma;
	162
	163	/* Interpret charger type */
	164	if (res < ((ADC_NOM_CHG_DETECT_USB + ADC_NOM_CHG_DETECT_1A) / 2)) {
	165
	166	/*
	167	* Sanity - stop GPO driving out now that we have a 1A charger
	168	* GPO controls USB Host power generation on GTA02
	169	*/
	170	pcf50633_gpio_set(pcf, PCF50633_GPO, 0);
	171
	172	ma = 1000;
	173	} else
	174	ma = 100;
	175
	176	pcf50633_mbc_usb_curlim_set(pcf, ma);
	177	}
8db9a202	178	#endif
9d76295a AG	179
	180	static struct delayed_work gta02_charger_work;
	181	static int gta02_usb_vbus_draw;
	182
	183	static void gta02_charger_worker(struct work_struct *work)
	184	{
	185	if (gta02_usb_vbus_draw) {
	186	pcf50633_mbc_usb_curlim_set(gta02_pcf, gta02_usb_vbus_draw);
	187	return;
	188	}
	189
	190	#ifdef CONFIG_PCF50633_ADC
	191	pcf50633_adc_async_read(gta02_pcf,
	192	PCF50633_ADCC1_MUX_ADCIN1,
	193	PCF50633_ADCC1_AVERAGE_16,
	194	gta02_configure_pmu_for_charger,
	195	NULL);
	196	#else
	197	/*
	198	* If the PCF50633 ADC is disabled we fallback to a
	199	* 100mA limit for safety.
	200	*/
645e27b0	201	pcf50633_mbc_usb_curlim_set(gta02_pcf, 100);
9d76295a AG	202	#endif
	203	}
	204
	205	#define GTA02_CHARGER_CONFIGURE_TIMEOUT ((3000 * HZ) / 1000)
	206
	207	static void gta02_pmu_event_callback(struct pcf50633 *pcf, int irq)
	208	{
	209	if (irq == PCF50633_IRQ_USBINS) {
	210	schedule_delayed_work(&gta02_charger_work,
	211	GTA02_CHARGER_CONFIGURE_TIMEOUT);
	212
	213	return;
	214	}
	215
	216	if (irq == PCF50633_IRQ_USBREM) {
	217	cancel_delayed_work_sync(&gta02_charger_work);
	218	gta02_usb_vbus_draw = 0;
	219	}
	220	}
	221
	222	static void gta02_udc_vbus_draw(unsigned int ma)
	223	{
	224	if (!gta02_pcf)
	225	return;
	226
	227	gta02_usb_vbus_draw = ma;
	228
	229	schedule_delayed_work(&gta02_charger_work,
	230	GTA02_CHARGER_CONFIGURE_TIMEOUT);
	231	}
	232	#else /* !CONFIG_CHARGER_PCF50633 */
	233	#define gta02_pmu_event_callback NULL
	234	#define gta02_udc_vbus_draw NULL
	235	#endif
	236
	237	/*
	238	* This is called when pc50633 is probed, unfortunately quite late in the
	239	* day since it is an I2C bus device. Here we can belatedly define some
	240	* platform devices with the advantage that we can mark the pcf50633 as the
	241	* parent. This makes them get suspended and resumed with their parent
	242	* the pcf50633 still around.
	243	*/
	244
	245	static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf);
	246
	247
	248	static char *gta02_batteries[] = {
	249	"battery",
	250	};
	251
67e67df8 LPC	252	static struct pcf50633_bl_platform_data gta02_backlight_data = {
	253	.default_brightness = 0x3f,
	254	.default_brightness_limit = 0,
	255	.ramp_time = 5,
	256	};
	257
4cfb7b7c	258	static struct pcf50633_platform_data gta02_pcf_pdata = {
9d76295a AG	259	.resumers = {
	260	[0] = PCF50633_INT1_USBINS \|
	261	PCF50633_INT1_USBREM \|
	262	PCF50633_INT1_ALARM,
	263	[1] = PCF50633_INT2_ONKEYF,
	264	[2] = PCF50633_INT3_ONKEY1S,
	265	[3] = PCF50633_INT4_LOWSYS \|
	266	PCF50633_INT4_LOWBAT \|
	267	PCF50633_INT4_HIGHTMP,
	268	},
	269
	270	.batteries = gta02_batteries,
	271	.num_batteries = ARRAY_SIZE(gta02_batteries),
2f745dde LPC	272
	273	.charger_reference_current_ma = 1000,
	274
67e67df8 LPC	275	.backlight_data = &gta02_backlight_data,
67e67df8 LPC	276
9d76295a AG	277	.reg_init_data = {
	278	[PCF50633_REGULATOR_AUTO] = {
	279	.constraints = {
	280	.min_uV = 3300000,
	281	.max_uV = 3300000,
	282	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	283	.always_on = 1,
	284	.apply_uV = 1,
9d76295a AG	285	},
	286	},
	287	[PCF50633_REGULATOR_DOWN1] = {
	288	.constraints = {
	289	.min_uV = 1300000,
	290	.max_uV = 1600000,
	291	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	292	.always_on = 1,
	293	.apply_uV = 1,
	294	},
	295	},
	296	[PCF50633_REGULATOR_DOWN2] = {
	297	.constraints = {
	298	.min_uV = 1800000,
	299	.max_uV = 1800000,
	300	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	301	.apply_uV = 1,
	302	.always_on = 1,
9d76295a AG	303	},
	304	},
	305	[PCF50633_REGULATOR_HCLDO] = {
	306	.constraints = {
	307	.min_uV = 2000000,
	308	.max_uV = 3300000,
	309	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440 LPC	310	.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE \|
7cda3440 LPC	311	REGULATOR_CHANGE_STATUS,
9d76295a AG	312	},
	313	},
	314	[PCF50633_REGULATOR_LDO1] = {
	315	.constraints = {
	316	.min_uV = 3300000,
	317	.max_uV = 3300000,
	318	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440	319	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
9d76295a	320	.apply_uV = 1,
9d76295a AG	321	},
	322	},
	323	[PCF50633_REGULATOR_LDO2] = {
	324	.constraints = {
	325	.min_uV = 3300000,
	326	.max_uV = 3300000,
	327	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	328	.apply_uV = 1,
	329	},
	330	},
	331	[PCF50633_REGULATOR_LDO3] = {
	332	.constraints = {
	333	.min_uV = 3000000,
	334	.max_uV = 3000000,
	335	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	336	.apply_uV = 1,
	337	},
	338	},
	339	[PCF50633_REGULATOR_LDO4] = {
	340	.constraints = {
	341	.min_uV = 3200000,
	342	.max_uV = 3200000,
	343	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440	344	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
9d76295a AG	345	.apply_uV = 1,
	346	},
	347	},
	348	[PCF50633_REGULATOR_LDO5] = {
	349	.constraints = {
	350	.min_uV = 3000000,
	351	.max_uV = 3000000,
	352	.valid_modes_mask = REGULATOR_MODE_NORMAL,
7cda3440	353	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
9d76295a	354	.apply_uV = 1,
9d76295a AG	355	},
	356	},
	357	[PCF50633_REGULATOR_LDO6] = {
	358	.constraints = {
	359	.min_uV = 3000000,
	360	.max_uV = 3000000,
	361	.valid_modes_mask = REGULATOR_MODE_NORMAL,
	362	},
	363	},
	364	[PCF50633_REGULATOR_MEMLDO] = {
	365	.constraints = {
	366	.min_uV = 1800000,
	367	.max_uV = 1800000,
	368	.valid_modes_mask = REGULATOR_MODE_NORMAL,
9d76295a AG	369	},
	370	},
	371
	372	},
	373	.probe_done = gta02_pmu_attach_child_devices,
	374	.mbc_event_callback = gta02_pmu_event_callback,
	375	};
	376
	377
	378	/* NOR Flash. */
	379
	380	#define GTA02_FLASH_BASE 0x18000000 /* GCS3 */
	381	#define GTA02_FLASH_SIZE 0x200000 /* 2MBytes */
	382
	383	static struct physmap_flash_data gta02_nor_flash_data = {
	384	.width = 2,
	385	};
	386
1c2bf1d3 TB	387	static struct resource gta02_nor_flash_resource =
1c2bf1d3 TB	388	DEFINE_RES_MEM(GTA02_FLASH_BASE, GTA02_FLASH_SIZE);
9d76295a AG	389
	390	static struct platform_device gta02_nor_flash = {
	391	.name = "physmap-flash",
	392	.id = 0,
	393	.dev = {
	394	.platform_data = &gta02_nor_flash_data,
	395	},
	396	.resource = &gta02_nor_flash_resource,
	397	.num_resources = 1,
	398	};
	399
	400
4cfb7b7c	401	static struct platform_device s3c24xx_pwm_device = {
9d76295a AG	402	.name = "s3c24xx_pwm",
	403	.num_resources = 0,
	404	};
	405
6caa15d0 LPC	406	static struct platform_device gta02_dfbmcs320_device = {
	407	.name = "dfbmcs320",
	408	};
	409
9d76295a AG	410	static struct i2c_board_info gta02_i2c_devs[] __initdata = {
	411	{
	412	I2C_BOARD_INFO("pcf50633", 0x73),
	413	.irq = GTA02_IRQ_PCF50633,
	414	.platform_data = &gta02_pcf_pdata,
	415	},
	416	{
	417	I2C_BOARD_INFO("wm8753", 0x1a),
	418	},
	419	};
	420
2a3a1804	421	static struct s3c2410_nand_set __initdata gta02_nand_sets[] = {
9d76295a AG	422	[0] = {
	423	/*
	424	* This name is also hard-coded in the boot loaders, so
	425	* changing it would would require all users to upgrade
	426	* their boot loaders, some of which are stored in a NOR
	427	* that is considered to be immutable.
	428	*/
	429	.name = "neo1973-nand",
	430	.nr_chips = 1,
76609a69	431	.flash_bbt = 1,
9d76295a AG	432	},
	433	};
	434
	435	/*
	436	* Choose a set of timings derived from S3C@2442B MCP54
	437	* data sheet (K5D2G13ACM-D075 MCP Memory).
	438	*/
	439
2a3a1804	440	static struct s3c2410_platform_nand __initdata gta02_nand_info = {
9d76295a AG	441	.tacls = 0,
	442	.twrph0 = 25,
	443	.twrph1 = 15,
	444	.nr_sets = ARRAY_SIZE(gta02_nand_sets),
	445	.sets = gta02_nand_sets,
	446	};
	447
	448
9d76295a	449	/* Get PMU to set USB current limit accordingly. */
e27c3c5c	450	static struct s3c2410_udc_mach_info gta02_udc_cfg __initdata = {
9d76295a	451	.vbus_draw = gta02_udc_vbus_draw,
e27c3c5c	452	.pullup_pin = GTA02_GPIO_USB_PULLUP,
9d76295a AG	453	};
9d76295a AG	454
9d76295a	455	/* USB */
f1267520	456	static struct s3c2410_hcd_info gta02_usb_info __initdata = {
9d76295a AG	457	.port[0] = {
	458	.flags = S3C_HCDFLG_USED,
	459	},
	460	.port[1] = {
	461	.flags = 0,
	462	},
	463	};
	464
d73af183 LPC	465	/* Touchscreen */
	466	static struct s3c2410_ts_mach_info gta02_ts_info = {
	467	.delay = 10000,
	468	.presc = 0xff, /* slow as we can go */
	469	.oversampling_shift = 2,
	470	};
	471
003ddede LPC	472	/* Buttons */
	473	static struct gpio_keys_button gta02_buttons[] = {
	474	{
	475	.gpio = GTA02_GPIO_AUX_KEY,
	476	.code = KEY_PHONE,
	477	.desc = "Aux",
	478	.type = EV_KEY,
	479	.debounce_interval = 100,
	480	},
	481	{
	482	.gpio = GTA02_GPIO_HOLD_KEY,
	483	.code = KEY_PAUSE,
	484	.desc = "Hold",
	485	.type = EV_KEY,
	486	.debounce_interval = 100,
	487	},
	488	};
	489
	490	static struct gpio_keys_platform_data gta02_buttons_pdata = {
	491	.buttons = gta02_buttons,
	492	.nbuttons = ARRAY_SIZE(gta02_buttons),
	493	};
	494
	495	static struct platform_device gta02_buttons_device = {
	496	.name = "gpio-keys",
	497	.id = -1,
	498	.dev = {
	499	.platform_data = &gta02_buttons_pdata,
	500	},
	501	};
9d76295a AG	502
	503	static void __init gta02_map_io(void)
	504	{
	505	s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc));
9d76295a	506	s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs));
7f78b6eb	507	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
9d76295a AG	508	}
	509
	510
	511	/* These are the guys that don't need to be children of PMU. */
	512
	513	static struct platform_device *gta02_devices[] __initdata = {
b813248c	514	&s3c_device_ohci,
9d76295a AG	515	&s3c_device_wdt,
	516	&s3c_device_sdi,
	517	&s3c_device_usbgadget,
	518	&s3c_device_nand,
	519	&gta02_nor_flash,
	520	&s3c24xx_pwm_device,
	521	&s3c_device_iis,
	522	&s3c_device_i2c0,
6caa15d0	523	&gta02_dfbmcs320_device,
003ddede	524	&gta02_buttons_device,
d73af183 LPC	525	&s3c_device_adc,
d73af183 LPC	526	&s3c_device_ts,
9d76295a AG	527	};
	528
	529	/* These guys DO need to be children of PMU. */
	530
	531	static struct platform_device *gta02_devices_pmu_children[] = {
9d76295a AG	532	};
	533
	534
	535	/*
	536	* This is called when pc50633 is probed, quite late in the day since it is an
	537	* I2C bus device. Here we can define platform devices with the advantage that
	538	* we can mark the pcf50633 as the parent. This makes them get suspended and
	539	* resumed with their parent the pcf50633 still around. All devices whose
	540	* operation depends on something from pcf50633 must have this relationship
	541	* made explicit like this, or suspend and resume will become an unreliable
	542	* hellworld.
	543	*/
	544
	545	static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf)
	546	{
	547	int n;
	548
	549	/* Grab a copy of the now probed PMU pointer. */
	550	gta02_pcf = pcf;
	551
	552	for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
	553	gta02_devices_pmu_children[n]->dev.parent = pcf->dev;
	554
	555	platform_add_devices(gta02_devices_pmu_children,
	556	ARRAY_SIZE(gta02_devices_pmu_children));
	557	}
	558
	559	static void gta02_poweroff(void)
	560	{
	561	pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
	562	}
	563
	564	static void __init gta02_machine_init(void)
	565	{
c7ff0d9c	566	/* Set the panic callback to turn AUX LED on or off. */
9d76295a AG	567	panic_blink = gta02_panic_blink;
	568
	569	s3c_pm_init();
	570
	571	#ifdef CONFIG_CHARGER_PCF50633
	572	INIT_DELAYED_WORK(&gta02_charger_work, gta02_charger_worker);
	573	#endif
	574
9d76295a	575	s3c24xx_udc_set_platdata(&gta02_udc_cfg);
d73af183	576	s3c24xx_ts_set_platdata(&gta02_ts_info);
f1267520	577	s3c_ohci_set_platdata(&gta02_usb_info);
2a3a1804	578	s3c_nand_set_platdata(&gta02_nand_info);
9d76295a AG	579	s3c_i2c0_set_platdata(NULL);
	580
	581	i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));
	582
	583	platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
	584	pm_power_off = gta02_poweroff;
3c861b88 LPC	585
3c861b88 LPC	586	regulator_has_full_constraints();
9d76295a AG	587	}
9d76295a AG	588
a28d618e HS	589	static void __init gta02_init_time(void)
	590	{
	591	s3c2442_init_clocks(12000000);
	592	samsung_timer_init();
	593	}
9d76295a AG	594
	595	MACHINE_START(NEO1973_GTA02, "GTA02")
	596	/* Maintainer: Nelson Castillo <arhuaco@freaks-unidos.net> */
69d50710	597	.atag_offset = 0x100,
9d76295a	598	.map_io = gta02_map_io,
ce6c164b	599	.init_irq = s3c2442_init_irq,
9d76295a	600	.init_machine = gta02_machine_init,
a28d618e	601	.init_time = gta02_init_time,
9d76295a	602	MACHINE_END