[deliverable/linux.git] / arch / arm / mach-s3c64xx / mach-hmt.c

/* mach-hmt.c - Platform code for Airgoo HMT
 *
 * Copyright 2009 Peter Korsgaard <jacmet@sunsite.dk>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
*/

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/fb.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/leds.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>

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

#include <video/samsung_fimd.h>
#include <mach/hardware.h>
#include <mach/map.h>
#include <mach/irqs.h>

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

#include <linux/platform_data/i2c-s3c2410.h>
#include <mach/gpio-samsung.h>
#include <plat/fb.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>

#include <plat/devs.h>
#include <plat/cpu.h>
#include <plat/samsung-time.h>

#include "common.h"

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

static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = {
	[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,
	},
};

static struct pwm_lookup hmt_pwm_lookup[] = {
	PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL,
		   1000000000 / (100 * 256 * 20), PWM_POLARITY_NORMAL),
};

static int hmt_bl_init(struct device *dev)
{
	int ret;

	ret = gpio_request(S3C64XX_GPB(4), "lcd backlight enable");
	if (!ret)
		ret = gpio_direction_output(S3C64XX_GPB(4), 0);

	return ret;
}

static int hmt_bl_notify(struct device *dev, int brightness)
{
	/*
	 * translate from CIELUV/CIELAB L*->brightness, E.G. from
	 * perceived luminance to light output. Assumes range 0..25600
	 */
	if (brightness < 0x800) {
		/* Y = Yn * L / 903.3 */
		brightness = (100*256 * brightness + 231245/2) / 231245;
	} else {
		/* Y = Yn * ((L + 16) / 116 )^3 */
		int t = (brightness*4 + 16*1024 + 58)/116;
		brightness = 25 * ((t * t * t + 0x100000/2) / 0x100000);
	}

	gpio_set_value(S3C64XX_GPB(4), brightness);

	return brightness;
}

static void hmt_bl_exit(struct device *dev)
{
	gpio_free(S3C64XX_GPB(4));
}

static struct platform_pwm_backlight_data hmt_backlight_data = {
	.max_brightness	= 100 * 256,
	.dft_brightness	= 40 * 256,
	.enable_gpio	= -1,
	.init		= hmt_bl_init,
	.notify		= hmt_bl_notify,
	.exit		= hmt_bl_exit,

};

static struct platform_device hmt_backlight_device = {
	.name		= "pwm-backlight",
	.dev		= {
		.parent	= &samsung_device_pwm.dev,
		.platform_data = &hmt_backlight_data,
	},
};

static struct s3c_fb_pd_win hmt_fb_win0 = {
	.max_bpp	= 32,
	.default_bpp	= 16,
	.xres		= 800,
	.yres		= 480,
};

static struct fb_videomode hmt_lcd_timing = {
	.left_margin	= 8,
	.right_margin	= 13,
	.upper_margin	= 7,
	.lower_margin	= 5,
	.hsync_len	= 3,
	.vsync_len	= 1,
	.xres		= 800,
	.yres		= 480,
};

/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
static struct s3c_fb_platdata hmt_lcd_pdata __initdata = {
	.setup_gpio	= s3c64xx_fb_gpio_setup_24bpp,
	.vtiming	= &hmt_lcd_timing,
	.win[0]		= &hmt_fb_win0,
	.vidcon0	= VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
	.vidcon1	= VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
};

static struct mtd_partition hmt_nand_part[] = {
	[0] = {
		.name	= "uboot",
		.size	= SZ_512K,
		.offset	= 0,
	},
	[1] = {
		.name	= "uboot-env1",
		.size	= SZ_256K,
		.offset	= SZ_512K,
	},
	[2] = {
		.name	= "uboot-env2",
		.size	= SZ_256K,
		.offset	= SZ_512K + SZ_256K,
	},
	[3] = {
		.name	= "kernel",
		.size	= SZ_2M,
		.offset	= SZ_1M,
	},
	[4] = {
		.name	= "rootfs",
		.size	= MTDPART_SIZ_FULL,
		.offset	= SZ_1M + SZ_2M,
	},
};

static struct s3c2410_nand_set hmt_nand_sets[] = {
	[0] = {
		.name		= "nand",
		.nr_chips	= 1,
		.nr_partitions	= ARRAY_SIZE(hmt_nand_part),
		.partitions	= hmt_nand_part,
	},
};

static struct s3c2410_platform_nand hmt_nand_info = {
	.tacls		= 25,
	.twrph0		= 55,
	.twrph1		= 40,
	.nr_sets	= ARRAY_SIZE(hmt_nand_sets),
	.sets		= hmt_nand_sets,
};

static struct gpio_led hmt_leds[] = {
	{ /* left function keys */
		.name			= "left:blue",
		.gpio			= S3C64XX_GPO(12),
		.default_trigger	= "default-on",
	},
	{ /* right function keys - red */
		.name			= "right:red",
		.gpio			= S3C64XX_GPO(13),
	},
	{ /* right function keys - green */
		.name			= "right:green",
		.gpio			= S3C64XX_GPO(14),
	},
	{ /* right function keys - blue */
		.name			= "right:blue",
		.gpio			= S3C64XX_GPO(15),
		.default_trigger	= "default-on",
	},
};

static struct gpio_led_platform_data hmt_led_data = {
	.num_leds = ARRAY_SIZE(hmt_leds),
	.leds = hmt_leds,
};

static struct platform_device hmt_leds_device = {
	.name			= "leds-gpio",
	.id			= -1,
	.dev.platform_data	= &hmt_led_data,
};

static struct map_desc hmt_iodesc[] = {};

static struct platform_device *hmt_devices[] __initdata = {
	&s3c_device_i2c0,
	&s3c_device_nand,
	&s3c_device_fb,
	&s3c_device_ohci,
	&samsung_device_pwm,
	&hmt_backlight_device,
	&hmt_leds_device,
};

static void __init hmt_map_io(void)
{
	s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc));
	s3c64xx_set_xtal_freq(12000000);
	s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs));
	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
}

static void __init hmt_machine_init(void)
{
	s3c_i2c0_set_platdata(NULL);
	s3c_fb_set_platdata(&hmt_lcd_pdata);
	s3c_nand_set_platdata(&hmt_nand_info);

	gpio_request(S3C64XX_GPC(7), "usb power");
	gpio_direction_output(S3C64XX_GPC(7), 0);
	gpio_request(S3C64XX_GPM(0), "usb power");
	gpio_direction_output(S3C64XX_GPM(0), 1);
	gpio_request(S3C64XX_GPK(7), "usb power");
	gpio_direction_output(S3C64XX_GPK(7), 1);
	gpio_request(S3C64XX_GPF(13), "usb power");
	gpio_direction_output(S3C64XX_GPF(13), 1);

	pwm_add_table(hmt_pwm_lookup, ARRAY_SIZE(hmt_pwm_lookup));
	platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices));
}

MACHINE_START(HMT, "Airgoo-HMT")
	/* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */
	.atag_offset	= 0x100,
	.nr_irqs	= S3C64XX_NR_IRQS,
	.init_irq	= s3c6410_init_irq,
	.map_io		= hmt_map_io,
	.init_machine	= hmt_machine_init,
	.init_time	= samsung_timer_init,
	.restart	= s3c64xx_restart,
MACHINE_END
Commit	Line	Data
2896bda4 PK	1	/* mach-hmt.c - Platform code for Airgoo HMT
	2	*
	3	* Copyright 2009 Peter Korsgaard <jacmet@sunsite.dk>
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License version 2 as
	7	* published by the Free Software Foundation.
	8	*
	9	*/
	10
	11	#include <linux/kernel.h>
	12	#include <linux/init.h>
	13	#include <linux/serial_core.h>
334a1c70	14	#include <linux/serial_s3c.h>
2896bda4 PK	15	#include <linux/platform_device.h>
	16	#include <linux/io.h>
	17	#include <linux/i2c.h>
	18	#include <linux/fb.h>
	19	#include <linux/gpio.h>
	20	#include <linux/delay.h>
	21	#include <linux/leds.h>
dd39be62	22	#include <linux/pwm.h>
2896bda4 PK	23	#include <linux/pwm_backlight.h>
	24	#include <linux/mtd/mtd.h>
	25	#include <linux/mtd/partitions.h>
	26
	27	#include <asm/mach/arch.h>
	28	#include <asm/mach/map.h>
	29	#include <asm/mach/irq.h>
	30
5a213a55	31	#include <video/samsung_fimd.h>
2896bda4	32	#include <mach/hardware.h>
2896bda4	33	#include <mach/map.h>
ba279044	34	#include <mach/irqs.h>
2896bda4 PK	35
	36	#include <asm/irq.h>
	37	#include <asm/mach-types.h>
	38
436d42c6	39	#include <linux/platform_data/i2c-s3c2410.h>
b0161caa	40	#include <mach/gpio-samsung.h>
2896bda4	41	#include <plat/fb.h>
436d42c6	42	#include <linux/platform_data/mtd-nand-s3c2410.h>
2896bda4	43
2896bda4 PK	44	#include <plat/devs.h>
2896bda4 PK	45	#include <plat/cpu.h>
04a49b71	46	#include <plat/samsung-time.h>
2896bda4	47
b024043b KK	48	#include "common.h"
b024043b KK	49
2896bda4 PK	50	#define UCON S3C2410_UCON_DEFAULT
	51	#define ULCON (S3C2410_LCON_CS8 \| S3C2410_LCON_PNONE)
	52	#define UFCON (S3C2410_UFCON_RXTRIG8 \| S3C2410_UFCON_FIFOMODE)
	53
	54	static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = {
	55	[0] = {
	56	.hwport = 0,
	57	.flags = 0,
	58	.ucon = UCON,
	59	.ulcon = ULCON,
	60	.ufcon = UFCON,
	61	},
	62	[1] = {
	63	.hwport = 1,
	64	.flags = 0,
	65	.ucon = UCON,
	66	.ulcon = ULCON,
	67	.ufcon = UFCON,
	68	},
	69	[2] = {
	70	.hwport = 2,
	71	.flags = 0,
	72	.ucon = UCON,
	73	.ulcon = ULCON,
	74	.ufcon = UFCON,
	75	},
	76	};
	77
dd39be62 TR	78	static struct pwm_lookup hmt_pwm_lookup[] = {
	79	PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL,
	80	1000000000 / (100 * 256 * 20), PWM_POLARITY_NORMAL),
	81	};
	82
2896bda4 PK	83	static int hmt_bl_init(struct device *dev)
	84	{
	85	int ret;
	86
	87	ret = gpio_request(S3C64XX_GPB(4), "lcd backlight enable");
	88	if (!ret)
	89	ret = gpio_direction_output(S3C64XX_GPB(4), 0);
	90
	91	return ret;
	92	}
	93
1619ce11	94	static int hmt_bl_notify(struct device *dev, int brightness)
2896bda4 PK	95	{
	96	/*
	97	* translate from CIELUV/CIELAB L*->brightness, E.G. from
	98	* perceived luminance to light output. Assumes range 0..25600
	99	*/
	100	if (brightness < 0x800) {
	101	/* Y = Yn * L / 903.3 */
	102	brightness = (100256 brightness + 231245/2) / 231245;
	103	} else {
	104	/* Y = Yn * ((L + 16) / 116 )^3 */
	105	int t = (brightness4 + 161024 + 58)/116;
	106	brightness = 25 * ((t * t * t + 0x100000/2) / 0x100000);
	107	}
	108
	109	gpio_set_value(S3C64XX_GPB(4), brightness);
	110
	111	return brightness;
	112	}
	113
	114	static void hmt_bl_exit(struct device *dev)
	115	{
	116	gpio_free(S3C64XX_GPB(4));
	117	}
	118
	119	static struct platform_pwm_backlight_data hmt_backlight_data = {
2896bda4 PK	120	.max_brightness = 100 * 256,
2896bda4 PK	121	.dft_brightness = 40 * 256,
a63652f1	122	.enable_gpio = -1,
2896bda4 PK	123	.init = hmt_bl_init,
	124	.notify = hmt_bl_notify,
	125	.exit = hmt_bl_exit,
	126
	127	};
	128
	129	static struct platform_device hmt_backlight_device = {
	130	.name = "pwm-backlight",
	131	.dev = {
7fa33bdb	132	.parent = &samsung_device_pwm.dev,
2896bda4 PK	133	.platform_data = &hmt_backlight_data,
	134	},
	135	};
	136
	137	static struct s3c_fb_pd_win hmt_fb_win0 = {
2896bda4 PK	138	.max_bpp = 32,
2896bda4 PK	139	.default_bpp = 16,
79d3c41a TA	140	.xres = 800,
	141	.yres = 480,
	142	};
	143
	144	static struct fb_videomode hmt_lcd_timing = {
	145	.left_margin = 8,
	146	.right_margin = 13,
	147	.upper_margin = 7,
	148	.lower_margin = 5,
	149	.hsync_len = 3,
	150	.vsync_len = 1,
	151	.xres = 800,
	152	.yres = 480,
2896bda4 PK	153	};
	154
	155	/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
	156	static struct s3c_fb_platdata hmt_lcd_pdata __initdata = {
	157	.setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
79d3c41a	158	.vtiming = &hmt_lcd_timing,
2896bda4 PK	159	.win[0] = &hmt_fb_win0,
	160	.vidcon0 = VIDCON0_VIDOUT_RGB \| VIDCON0_PNRMODE_RGB,
	161	.vidcon1 = VIDCON1_INV_HSYNC \| VIDCON1_INV_VSYNC,
	162	};
	163
	164	static struct mtd_partition hmt_nand_part[] = {
	165	[0] = {
	166	.name = "uboot",
	167	.size = SZ_512K,
	168	.offset = 0,
	169	},
	170	[1] = {
	171	.name = "uboot-env1",
	172	.size = SZ_256K,
	173	.offset = SZ_512K,
	174	},
	175	[2] = {
	176	.name = "uboot-env2",
	177	.size = SZ_256K,
	178	.offset = SZ_512K + SZ_256K,
	179	},
	180	[3] = {
	181	.name = "kernel",
	182	.size = SZ_2M,
	183	.offset = SZ_1M,
	184	},
	185	[4] = {
	186	.name = "rootfs",
	187	.size = MTDPART_SIZ_FULL,
	188	.offset = SZ_1M + SZ_2M,
	189	},
	190	};
	191
	192	static struct s3c2410_nand_set hmt_nand_sets[] = {
	193	[0] = {
	194	.name = "nand",
	195	.nr_chips = 1,
	196	.nr_partitions = ARRAY_SIZE(hmt_nand_part),
	197	.partitions = hmt_nand_part,
	198	},
	199	};
	200
	201	static struct s3c2410_platform_nand hmt_nand_info = {
	202	.tacls = 25,
	203	.twrph0 = 55,
	204	.twrph1 = 40,
	205	.nr_sets = ARRAY_SIZE(hmt_nand_sets),
	206	.sets = hmt_nand_sets,
	207	};
	208
	209	static struct gpio_led hmt_leds[] = {
	210	{ /* left function keys */
	211	.name = "left:blue",
	212	.gpio = S3C64XX_GPO(12),
	213	.default_trigger = "default-on",
	214	},
	215	{ /* right function keys - red */
	216	.name = "right:red",
	217	.gpio = S3C64XX_GPO(13),
	218	},
	219	{ /* right function keys - green */
	220	.name = "right:green",
	221	.gpio = S3C64XX_GPO(14),
	222	},
223	{ /* right function keys - blue */
224	.name = "right:blue",
225	.gpio = S3C64XX_GPO(15),
226	.default_trigger = "default-on",
227	},
228	};
229
230	static struct gpio_led_platform_data hmt_led_data = {
231	.num_leds = ARRAY_SIZE(hmt_leds),
232	.leds = hmt_leds,
233	};
234
235	static struct platform_device hmt_leds_device = {
236	.name = "leds-gpio",
237	.id = -1,
238	.dev.platform_data = &hmt_led_data,
239	};
240
241	static struct map_desc hmt_iodesc[] = {};
242
243	static struct platform_device *hmt_devices[] __initdata = {
244	&s3c_device_i2c0,
245	&s3c_device_nand,
246	&s3c_device_fb,
b813248c	247	&s3c_device_ohci,
7fa33bdb	248	&samsung_device_pwm,
2896bda4 PK	249	&hmt_backlight_device,
	250	&hmt_leds_device,
	251	};
	252
	253	static void __init hmt_map_io(void)
	254	{
	255	s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc));
b69f460d	256	s3c64xx_set_xtal_freq(12000000);
2896bda4	257	s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs));
04a49b71	258	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
2896bda4 PK	259	}
	260
	261	static void __init hmt_machine_init(void)
	262	{
	263	s3c_i2c0_set_platdata(NULL);
	264	s3c_fb_set_platdata(&hmt_lcd_pdata);
2a3a1804	265	s3c_nand_set_platdata(&hmt_nand_info);
2896bda4 PK	266
	267	gpio_request(S3C64XX_GPC(7), "usb power");
	268	gpio_direction_output(S3C64XX_GPC(7), 0);
	269	gpio_request(S3C64XX_GPM(0), "usb power");
	270	gpio_direction_output(S3C64XX_GPM(0), 1);
	271	gpio_request(S3C64XX_GPK(7), "usb power");
	272	gpio_direction_output(S3C64XX_GPK(7), 1);
	273	gpio_request(S3C64XX_GPF(13), "usb power");
	274	gpio_direction_output(S3C64XX_GPF(13), 1);
	275
dd39be62	276	pwm_add_table(hmt_pwm_lookup, ARRAY_SIZE(hmt_pwm_lookup));
2896bda4 PK	277	platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices));
	278	}
	279
	280	MACHINE_START(HMT, "Airgoo-HMT")
	281	/* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */
170a5908	282	.atag_offset = 0x100,
ba279044	283	.nr_irqs = S3C64XX_NR_IRQS,
2896bda4 PK	284	.init_irq = s3c6410_init_irq,
	285	.map_io = hmt_map_io,
	286	.init_machine = hmt_machine_init,
04a49b71	287	.init_time = samsung_timer_init,
ff84ded2	288	.restart = s3c64xx_restart,
2896bda4	289	MACHINE_END