[mirror_ubuntu-bionic-kernel.git] / arch / arm / mach-s3c24xx / mach-mini2440.c

/* linux/arch/arm/mach-s3c2440/mach-mini2440.c
 *
 * Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
 *      Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
 *      and modifications by SBZ <sbz@spgui.org> and
 *      Weibing <http://weibing.blogbus.com> and
 *      Michel Pollet <buserror@gmail.com>
 *
 * For product information, visit http://code.google.com/p/mini2440/
 *
 * 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/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
#include <linux/dm9000.h>
#include <linux/platform_data/at24.h>
#include <linux/platform_device.h>
#include <linux/gpio_keys.h>
#include <linux/i2c.h>
#include <linux/mmc/host.h>

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

#include <mach/hardware.h>
#include <mach/fb.h>
#include <asm/mach-types.h>

#include <mach/regs-gpio.h>
#include <linux/platform_data/leds-s3c24xx.h>
#include <mach/regs-lcd.h>
#include <mach/irqs.h>
#include <mach/gpio-samsung.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/platform_data/mmc-s3cmci.h>
#include <linux/platform_data/usb-s3c2410_udc.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>

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

#include <sound/s3c24xx_uda134x.h>

#include "common.h"

#define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)

static struct map_desc mini2440_iodesc[] __initdata = {
	/* nothing to declare, move along */
};

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


static struct s3c2410_uartcfg mini2440_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,
	},
};

/* USB device UDC support */

static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
	.pullup_pin = S3C2410_GPC(5),
};


/* LCD timing and setup */

/*
 * This macro simplifies the table bellow
 */
#define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
			_yres,margin_top,margin_bottom,vsync, refresh) \
	.width = _xres, \
	.xres = _xres, \
	.height = _yres, \
	.yres = _yres, \
	.left_margin	= margin_left,	\
	.right_margin	= margin_right,	\
	.upper_margin	= margin_top,	\
	.lower_margin	= margin_bottom,	\
	.hsync_len	= hsync,	\
	.vsync_len	= vsync,	\
	.pixclock	= ((_clock*100000000000LL) /	\
			   ((refresh) * \
			   (hsync + margin_left + _xres + margin_right) * \
			   (vsync + margin_top + _yres + margin_bottom))), \
	.bpp		= 16,\
	.type		= (S3C2410_LCDCON1_TFT16BPP |\
			   S3C2410_LCDCON1_TFT)

static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
	[0] = {	/* mini2440 + 3.5" TFT + touchscreen */
		_LCD_DECLARE(
			7,			/* The 3.5 is quite fast */
			240, 21, 38, 6, 	/* x timing */
			320, 4, 4, 2,		/* y timing */
			60),			/* refresh rate */
		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
				   S3C2410_LCDCON5_INVVLINE |
				   S3C2410_LCDCON5_INVVFRAME |
				   S3C2410_LCDCON5_INVVDEN |
				   S3C2410_LCDCON5_PWREN),
	},
	[1] = { /* mini2440 + 7" TFT + touchscreen */
		_LCD_DECLARE(
			10,			/* the 7" runs slower */
			800, 40, 40, 48, 	/* x timing */
			480, 29, 3, 3,		/* y timing */
			50),			/* refresh rate */
		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
				   S3C2410_LCDCON5_INVVLINE |
				   S3C2410_LCDCON5_INVVFRAME |
				   S3C2410_LCDCON5_PWREN),
	},
	/* The VGA shield can outout at several resolutions. All share 
	 * the same timings, however, anything smaller than 1024x768
	 * will only be displayed in the top left corner of a 1024x768
	 * XGA output unless you add optional dip switches to the shield.
	 * Therefore timings for other resolutions have been omitted here.
	 */
	[2] = {
		_LCD_DECLARE(
			10,
			1024, 1, 2, 2,		/* y timing */
			768, 200, 16, 16, 	/* x timing */
			24),	/* refresh rate, maximum stable,
				 tested with the FPGA shield */
		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
				   S3C2410_LCDCON5_HWSWP),
	},
	/* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/
	[3] = {
		_LCD_DECLARE(
			/* clock */
			7,
			/* xres, margin_right, margin_left, hsync */
			320, 68, 66, 4,
			/* yres, margin_top, margin_bottom, vsync */
			240, 4, 4, 9,
			/* refresh rate */
			60),
		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
				   S3C2410_LCDCON5_INVVDEN |
				   S3C2410_LCDCON5_INVVFRAME |
				   S3C2410_LCDCON5_INVVLINE |
				   S3C2410_LCDCON5_INVVCLK |
				   S3C2410_LCDCON5_HWSWP),
	},
};

/* todo - put into gpio header */

#define S3C2410_GPCCON_MASK(x)	(3 << ((x) * 2))
#define S3C2410_GPDCON_MASK(x)	(3 << ((x) * 2))

static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
	.displays	 = &mini2440_lcd_cfg[0], /* not constant! see init */
	.num_displays	 = 1,
	.default_display = 0,

	/* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
	 * and disable the pull down resistors on pins we are using for LCD
	 * data. */

	.gpcup		= (0xf << 1) | (0x3f << 10),

	.gpccon		= (S3C2410_GPC1_VCLK   | S3C2410_GPC2_VLINE |
			   S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
			   S3C2410_GPC10_VD2   | S3C2410_GPC11_VD3 |
			   S3C2410_GPC12_VD4   | S3C2410_GPC13_VD5 |
			   S3C2410_GPC14_VD6   | S3C2410_GPC15_VD7),

	.gpccon_mask	= (S3C2410_GPCCON_MASK(1)  | S3C2410_GPCCON_MASK(2)  |
			   S3C2410_GPCCON_MASK(3)  | S3C2410_GPCCON_MASK(4)  |
			   S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
			   S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
			   S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),

	.gpdup		= (0x3f << 2) | (0x3f << 10),

	.gpdcon		= (S3C2410_GPD2_VD10  | S3C2410_GPD3_VD11 |
			   S3C2410_GPD4_VD12  | S3C2410_GPD5_VD13 |
			   S3C2410_GPD6_VD14  | S3C2410_GPD7_VD15 |
			   S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
			   S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
			   S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),

	.gpdcon_mask	= (S3C2410_GPDCON_MASK(2)  | S3C2410_GPDCON_MASK(3) |
			   S3C2410_GPDCON_MASK(4)  | S3C2410_GPDCON_MASK(5) |
			   S3C2410_GPDCON_MASK(6)  | S3C2410_GPDCON_MASK(7) |
			   S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
			   S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
			   S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
};

/* MMC/SD  */

static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
   .gpio_detect   = S3C2410_GPG(8),
   .gpio_wprotect = S3C2410_GPH(8),
   .set_power     = NULL,
   .ocr_avail     = MMC_VDD_32_33|MMC_VDD_33_34,
};

/* NAND Flash on MINI2440 board */

static struct mtd_partition mini2440_default_nand_part[] __initdata = {
	[0] = {
		.name	= "u-boot",
		.size	= SZ_256K,
		.offset	= 0,
	},
	[1] = {
		.name	= "u-boot-env",
		.size	= SZ_128K,
		.offset	= SZ_256K,
	},
	[2] = {
		.name	= "kernel",
		/* 5 megabytes, for a kernel with no modules
		 * or a uImage with a ramdisk attached */
		.size	= 0x00500000,
		.offset	= SZ_256K + SZ_128K,
	},
	[3] = {
		.name	= "root",
		.offset	= SZ_256K + SZ_128K + 0x00500000,
		.size	= MTDPART_SIZ_FULL,
	},
};

static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
	[0] = {
		.name		= "nand",
		.nr_chips	= 1,
		.nr_partitions	= ARRAY_SIZE(mini2440_default_nand_part),
		.partitions	= mini2440_default_nand_part,
		.flash_bbt 	= 1, /* we use u-boot to create a BBT */
	},
};

static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
	.tacls		= 0,
	.twrph0		= 25,
	.twrph1		= 15,
	.nr_sets	= ARRAY_SIZE(mini2440_nand_sets),
	.sets		= mini2440_nand_sets,
	.ignore_unset_ecc = 1,
	.ecc_mode       = NAND_ECC_HW,
};

/* DM9000AEP 10/100 ethernet controller */

static struct resource mini2440_dm9k_resource[] = {
	[0] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE, 4),
	[1] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE + 4, 4),
	[2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ \
						| IORESOURCE_IRQ_HIGHEDGE),
};

/*
 * The DM9000 has no eeprom, and it's MAC address is set by
 * the bootloader before starting the kernel.
 */
static struct dm9000_plat_data mini2440_dm9k_pdata = {
	.flags		= (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
};

static struct platform_device mini2440_device_eth = {
	.name		= "dm9000",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(mini2440_dm9k_resource),
	.resource	= mini2440_dm9k_resource,
	.dev		= {
		.platform_data	= &mini2440_dm9k_pdata,
	},
};

/*  CON5
 *	+--+	 /-----\
 *	|  |    |	|
 *	|  |	|  BAT	|
 *	|  |	 \_____/
 *	|  |
 *	|  |  +----+  +----+
 *	|  |  | K5 |  | K1 |
 *	|  |  +----+  +----+
 *	|  |  +----+  +----+
 *	|  |  | K4 |  | K2 |
 *	|  |  +----+  +----+
 *	|  |  +----+  +----+
 *	|  |  | K6 |  | K3 |
 *	|  |  +----+  +----+
 *	  .....
 */
static struct gpio_keys_button mini2440_buttons[] = {
	{
		.gpio		= S3C2410_GPG(0),		/* K1 */
		.code		= KEY_F1,
		.desc		= "Button 1",
		.active_low	= 1,
	},
	{
		.gpio		= S3C2410_GPG(3),		/* K2 */
		.code		= KEY_F2,
		.desc		= "Button 2",
		.active_low	= 1,
	},
	{
		.gpio		= S3C2410_GPG(5),		/* K3 */
		.code		= KEY_F3,
		.desc		= "Button 3",
		.active_low	= 1,
	},
	{
		.gpio		= S3C2410_GPG(6),		/* K4 */
		.code		= KEY_POWER,
		.desc		= "Power",
		.active_low	= 1,
	},
	{
		.gpio		= S3C2410_GPG(7),		/* K5 */
		.code		= KEY_F5,
		.desc		= "Button 5",
		.active_low	= 1,
	},
#if 0
	/* this pin is also known as TCLK1 and seems to already
	 * marked as "in use" somehow in the kernel -- possibly wrongly */
	{
		.gpio		= S3C2410_GPG(11),	/* K6 */
		.code		= KEY_F6,
		.desc		= "Button 6",
		.active_low	= 1,
	},
#endif
};

static struct gpio_keys_platform_data mini2440_button_data = {
	.buttons	= mini2440_buttons,
	.nbuttons	= ARRAY_SIZE(mini2440_buttons),
};

static struct platform_device mini2440_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.dev		= {
		.platform_data	= &mini2440_button_data,
	}
};

/* LEDS */

static struct s3c24xx_led_platdata mini2440_led1_pdata = {
	.name		= "led1",
	.gpio		= S3C2410_GPB(5),
	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
	.def_trigger	= "heartbeat",
};

static struct s3c24xx_led_platdata mini2440_led2_pdata = {
	.name		= "led2",
	.gpio		= S3C2410_GPB(6),
	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
	.def_trigger	= "nand-disk",
};

static struct s3c24xx_led_platdata mini2440_led3_pdata = {
	.name		= "led3",
	.gpio		= S3C2410_GPB(7),
	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
	.def_trigger	= "mmc0",
};

static struct s3c24xx_led_platdata mini2440_led4_pdata = {
	.name		= "led4",
	.gpio		= S3C2410_GPB(8),
	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
	.def_trigger	= "",
};

static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = {
	.name		= "backlight",
	.gpio		= S3C2410_GPG(4),
	.def_trigger	= "backlight",
};

static struct platform_device mini2440_led1 = {
	.name		= "s3c24xx_led",
	.id		= 1,
	.dev		= {
		.platform_data	= &mini2440_led1_pdata,
	},
};

static struct platform_device mini2440_led2 = {
	.name		= "s3c24xx_led",
	.id		= 2,
	.dev		= {
		.platform_data	= &mini2440_led2_pdata,
	},
};

static struct platform_device mini2440_led3 = {
	.name		= "s3c24xx_led",
	.id		= 3,
	.dev		= {
		.platform_data	= &mini2440_led3_pdata,
	},
};

static struct platform_device mini2440_led4 = {
	.name		= "s3c24xx_led",
	.id		= 4,
	.dev		= {
		.platform_data	= &mini2440_led4_pdata,
	},
};

static struct platform_device mini2440_led_backlight = {
	.name		= "s3c24xx_led",
	.id		= 5,
	.dev		= {
		.platform_data	= &mini2440_led_backlight_pdata,
	},
};

/* AUDIO */

static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = {
	.l3_clk = S3C2410_GPB(4),
	.l3_mode = S3C2410_GPB(2),
	.l3_data = S3C2410_GPB(3),
	.model = UDA134X_UDA1341
};

static struct platform_device mini2440_audio = {
	.name		= "s3c24xx_uda134x",
	.id		= 0,
	.dev		= {
		.platform_data	= &mini2440_audio_pins,
	},
};

/*
 * I2C devices
 */
static struct at24_platform_data at24c08 = {
	.byte_len	= SZ_8K / 8,
	.page_size	= 16,
};

static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
	{
		I2C_BOARD_INFO("24c08", 0x50),
		.platform_data = &at24c08,
	},
};

static struct uda134x_platform_data s3c24xx_uda134x = {
	.l3 = {
		.gpio_clk = S3C2410_GPB(4),
		.gpio_data = S3C2410_GPB(3),
		.gpio_mode = S3C2410_GPB(2),
		.use_gpios = 1,
		.data_hold = 1,
		.data_setup = 1,
		.clock_high = 1,
		.mode_hold = 1,
		.mode = 1,
		.mode_setup = 1,
	},
	.model = UDA134X_UDA1341,
};

static struct platform_device uda1340_codec = {
		.name = "uda134x-codec",
		.id = -1,
		.dev = {
			.platform_data	= &s3c24xx_uda134x,
		},
};

static struct platform_device *mini2440_devices[] __initdata = {
	&s3c_device_ohci,
	&s3c_device_wdt,
	&s3c_device_i2c0,
	&s3c_device_rtc,
	&s3c_device_usbgadget,
	&mini2440_device_eth,
	&mini2440_led1,
	&mini2440_led2,
	&mini2440_led3,
	&mini2440_led4,
	&mini2440_button_device,
	&s3c_device_nand,
	&s3c_device_sdi,
	&s3c2440_device_dma,
	&s3c_device_iis,
	&uda1340_codec,
	&mini2440_audio,
};

static void __init mini2440_map_io(void)
{
	s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
	s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
}

static void __init mini2440_init_time(void)
{
	s3c2440_init_clocks(12000000);
	samsung_timer_init();
}

/*
 * mini2440_features string
 *
 * t = Touchscreen present
 * b = backlight control
 * c = camera [TODO]
 * 0-9 LCD configuration
 *
 */
static char mini2440_features_str[12] __initdata = "0tb";

static int __init mini2440_features_setup(char *str)
{
	if (str)
		strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
	return 1;
}

__setup("mini2440=", mini2440_features_setup);

#define FEATURE_SCREEN (1 << 0)
#define FEATURE_BACKLIGHT (1 << 1)
#define FEATURE_TOUCH (1 << 2)
#define FEATURE_CAMERA (1 << 3)

struct mini2440_features_t {
	int count;
	int done;
	int lcd_index;
	struct platform_device *optional[8];
};

static void __init mini2440_parse_features(
		struct mini2440_features_t * features,
		const char * features_str )
{
	const char * fp = features_str;

	features->count = 0;
	features->done = 0;
	features->lcd_index = -1;

	while (*fp) {
		char f = *fp++;

		switch (f) {
		case '0'...'9':	/* tft screen */
			if (features->done & FEATURE_SCREEN) {
				printk(KERN_INFO "MINI2440: '%c' ignored, "
					"screen type already set\n", f);
			} else {
				int li = f - '0';
				if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
					printk(KERN_INFO "MINI2440: "
						"'%c' out of range LCD mode\n", f);
				else {
					features->optional[features->count++] =
							&s3c_device_lcd;
					features->lcd_index = li;
				}
			}
			features->done |= FEATURE_SCREEN;
			break;
		case 'b':
			if (features->done & FEATURE_BACKLIGHT)
				printk(KERN_INFO "MINI2440: '%c' ignored, "
					"backlight already set\n", f);
			else {
				features->optional[features->count++] =
						&mini2440_led_backlight;
			}
			features->done |= FEATURE_BACKLIGHT;
			break;
		case 't':
			printk(KERN_INFO "MINI2440: '%c' ignored, "
				"touchscreen not compiled in\n", f);
			break;
		case 'c':
			if (features->done & FEATURE_CAMERA)
				printk(KERN_INFO "MINI2440: '%c' ignored, "
					"camera already registered\n", f);
			else
				features->optional[features->count++] =
					&s3c_device_camif;
			features->done |= FEATURE_CAMERA;
			break;
		}
	}
}

static void __init mini2440_init(void)
{
	struct mini2440_features_t features = { 0 };
	int i;

	printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
			mini2440_features_str);

	/* Parse the feature string */
	mini2440_parse_features(&features, mini2440_features_str);

	/* turn LCD on */
	s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);

	/* Turn the backlight early on */
	WARN_ON(gpio_request_one(S3C2410_GPG(4), GPIOF_OUT_INIT_HIGH, NULL));
	gpio_free(S3C2410_GPG(4));

	/* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
	gpio_request_one(S3C2410_GPB(1), GPIOF_IN, NULL);
	s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP);
	gpio_free(S3C2410_GPB(1));

	/* mark the key as input, without pullups (there is one on the board) */
	for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
		s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP);
		s3c_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT);
	}
	if (features.lcd_index != -1) {
		int li;

		mini2440_fb_info.displays =
			&mini2440_lcd_cfg[features.lcd_index];

		printk(KERN_INFO "MINI2440: LCD");
		for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
			if (li == features.lcd_index)
				printk(" [%d:%dx%d]", li,
					mini2440_lcd_cfg[li].width,
					mini2440_lcd_cfg[li].height);
			else
				printk(" %d:%dx%d", li,
					mini2440_lcd_cfg[li].width,
					mini2440_lcd_cfg[li].height);
		printk("\n");
		s3c24xx_fb_set_platdata(&mini2440_fb_info);
	}

	s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
	s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
	s3c_nand_set_platdata(&mini2440_nand_info);
	s3c_i2c0_set_platdata(NULL);

	i2c_register_board_info(0, mini2440_i2c_devs,
				ARRAY_SIZE(mini2440_i2c_devs));

	platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));

	if (features.count)	/* the optional features */
		platform_add_devices(features.optional, features.count);

}


MACHINE_START(MINI2440, "MINI2440")
	/* Maintainer: Michel Pollet <buserror@gmail.com> */
	.atag_offset	= 0x100,
	.map_io		= mini2440_map_io,
	.init_machine	= mini2440_init,
	.init_irq	= s3c2440_init_irq,
	.init_time	= mini2440_init_time,
MACHINE_END
Commit	Line	Data
5102aa4a MP	1	/* linux/arch/arm/mach-s3c2440/mach-mini2440.c
	2	*
	3	* Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
	4	* Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
	5	* and modifications by SBZ <sbz@spgui.org> and
	6	* Weibing <http://weibing.blogbus.com> and
	7	* Michel Pollet <buserror@gmail.com>
	8	*
	9	* For product information, visit http://code.google.com/p/mini2440/
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License version 2 as
	13	* published by the Free Software Foundation.
	14	*/
	15
	16	#include <linux/kernel.h>
	17	#include <linux/types.h>
	18	#include <linux/interrupt.h>
	19	#include <linux/list.h>
	20	#include <linux/timer.h>
	21	#include <linux/init.h>
	22	#include <linux/gpio.h>
	23	#include <linux/input.h>
	24	#include <linux/io.h>
	25	#include <linux/serial_core.h>
334a1c70	26	#include <linux/serial_s3c.h>
5102aa4a	27	#include <linux/dm9000.h>
25f73ed5	28	#include <linux/platform_data/at24.h>
5102aa4a MP	29	#include <linux/platform_device.h>
	30	#include <linux/gpio_keys.h>
	31	#include <linux/i2c.h>
	32	#include <linux/mmc/host.h>
	33
	34	#include <asm/mach/arch.h>
	35	#include <asm/mach/map.h>
	36
	37	#include <mach/hardware.h>
	38	#include <mach/fb.h>
	39	#include <asm/mach-types.h>
	40
5102aa4a	41	#include <mach/regs-gpio.h>
436d42c6	42	#include <linux/platform_data/leds-s3c24xx.h>
5102aa4a MP	43	#include <mach/regs-lcd.h>
5102aa4a MP	44	#include <mach/irqs.h>
b0161caa	45	#include <mach/gpio-samsung.h>
436d42c6 AB	46	#include <linux/platform_data/mtd-nand-s3c2410.h>
	47	#include <linux/platform_data/i2c-s3c2410.h>
	48	#include <linux/platform_data/mmc-s3cmci.h>
	49	#include <linux/platform_data/usb-s3c2410_udc.h>
5102aa4a	50
5102aa4a	51	#include <linux/mtd/mtd.h>
d4092d76	52	#include <linux/mtd/rawnand.h>
5102aa4a MP	53	#include <linux/mtd/nand_ecc.h>
	54	#include <linux/mtd/partitions.h>
	55
40b956f0	56	#include <plat/gpio-cfg.h>
5102aa4a MP	57	#include <plat/devs.h>
5102aa4a MP	58	#include <plat/cpu.h>
7f78b6eb	59	#include <plat/samsung-time.h>
5102aa4a MP	60
	61	#include <sound/s3c24xx_uda134x.h>
	62
b27b0727 KK	63	#include "common.h"
b27b0727 KK	64
5102aa4a MP	65	#define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)
	66
	67	static struct map_desc mini2440_iodesc[] __initdata = {
	68	/* nothing to declare, move along */
	69	};
	70
	71	#define UCON S3C2410_UCON_DEFAULT
	72	#define ULCON S3C2410_LCON_CS8 \| S3C2410_LCON_PNONE \| S3C2410_LCON_STOPB
	73	#define UFCON S3C2410_UFCON_RXTRIG8 \| S3C2410_UFCON_FIFOMODE
	74
	75
	76	static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
	77	[0] = {
	78	.hwport = 0,
	79	.flags = 0,
	80	.ucon = UCON,
	81	.ulcon = ULCON,
	82	.ufcon = UFCON,
	83	},
	84	[1] = {
	85	.hwport = 1,
	86	.flags = 0,
	87	.ucon = UCON,
	88	.ulcon = ULCON,
	89	.ufcon = UFCON,
	90	},
	91	[2] = {
	92	.hwport = 2,
	93	.flags = 0,
	94	.ucon = UCON,
	95	.ulcon = ULCON,
	96	.ufcon = UFCON,
	97	},
	98	};
	99
	100	/* USB device UDC support */
	101
5102aa4a	102	static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
e27c3c5c	103	.pullup_pin = S3C2410_GPC(5),
5102aa4a MP	104	};
	105
	106
	107	/* LCD timing and setup */
	108
	109	/*
	110	* This macro simplifies the table bellow
	111	*/
	112	#define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
	113	_yres,margin_top,margin_bottom,vsync, refresh) \
	114	.width = _xres, \
	115	.xres = _xres, \
	116	.height = _yres, \
	117	.yres = _yres, \
	118	.left_margin = margin_left, \
	119	.right_margin = margin_right, \
	120	.upper_margin = margin_top, \
	121	.lower_margin = margin_bottom, \
	122	.hsync_len = hsync, \
	123	.vsync_len = vsync, \
	124	.pixclock = ((_clock*100000000000LL) / \
	125	((refresh) * \
	126	(hsync + margin_left + _xres + margin_right) * \
	127	(vsync + margin_top + _yres + margin_bottom))), \
	128	.bpp = 16,\
	129	.type = (S3C2410_LCDCON1_TFT16BPP \|\
	130	S3C2410_LCDCON1_TFT)
	131
00709947	132	static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
5102aa4a MP	133	[0] = { /* mini2440 + 3.5" TFT + touchscreen */
	134	_LCD_DECLARE(
	135	7, /* The 3.5 is quite fast */
	136	240, 21, 38, 6, /* x timing */
	137	320, 4, 4, 2, /* y timing */
	138	60), /* refresh rate */
	139	.lcdcon5 = (S3C2410_LCDCON5_FRM565 \|
	140	S3C2410_LCDCON5_INVVLINE \|
	141	S3C2410_LCDCON5_INVVFRAME \|
	142	S3C2410_LCDCON5_INVVDEN \|
	143	S3C2410_LCDCON5_PWREN),
	144	},
	145	[1] = { /* mini2440 + 7" TFT + touchscreen */
	146	_LCD_DECLARE(
	147	10, /* the 7" runs slower */
	148	800, 40, 40, 48, /* x timing */
	149	480, 29, 3, 3, /* y timing */
	150	50), /* refresh rate */
	151	.lcdcon5 = (S3C2410_LCDCON5_FRM565 \|
	152	S3C2410_LCDCON5_INVVLINE \|
	153	S3C2410_LCDCON5_INVVFRAME \|
	154	S3C2410_LCDCON5_PWREN),
	155	},
	156	/* The VGA shield can outout at several resolutions. All share
	157	* the same timings, however, anything smaller than 1024x768
	158	* will only be displayed in the top left corner of a 1024x768
	159	* XGA output unless you add optional dip switches to the shield.
25985edc	160	* Therefore timings for other resolutions have been omitted here.
5102aa4a MP	161	*/
	162	[2] = {
	163	_LCD_DECLARE(
	164	10,
	165	1024, 1, 2, 2, /* y timing */
	166	768, 200, 16, 16, /* x timing */
	167	24), /* refresh rate, maximum stable,
	168	tested with the FPGA shield */
	169	.lcdcon5 = (S3C2410_LCDCON5_FRM565 \|
	170	S3C2410_LCDCON5_HWSWP),
	171	},
8e146f54 DK	172	/* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/
	173	[3] = {
	174	_LCD_DECLARE(
	175	/* clock */
	176	7,
	177	/* xres, margin_right, margin_left, hsync */
	178	320, 68, 66, 4,
	179	/* yres, margin_top, margin_bottom, vsync */
	180	240, 4, 4, 9,
	181	/* refresh rate */
	182	60),
	183	.lcdcon5 = (S3C2410_LCDCON5_FRM565 \|
	184	S3C2410_LCDCON5_INVVDEN \|
	185	S3C2410_LCDCON5_INVVFRAME \|
	186	S3C2410_LCDCON5_INVVLINE \|
	187	S3C2410_LCDCON5_INVVCLK \|
	188	S3C2410_LCDCON5_HWSWP),
	189	},
5102aa4a MP	190	};
	191
	192	/* todo - put into gpio header */
	193
	194	#define S3C2410_GPCCON_MASK(x) (3 << ((x) * 2))
	195	#define S3C2410_GPDCON_MASK(x) (3 << ((x) * 2))
	196
00709947	197	static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
5102aa4a MP	198	.displays = &mini2440_lcd_cfg[0], /* not constant! see init */
	199	.num_displays = 1,
	200	.default_display = 0,
	201
	202	/* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
	203	* and disable the pull down resistors on pins we are using for LCD
	204	* data. */
	205
	206	.gpcup = (0xf << 1) \| (0x3f << 10),
	207
	208	.gpccon = (S3C2410_GPC1_VCLK \| S3C2410_GPC2_VLINE \|
	209	S3C2410_GPC3_VFRAME \| S3C2410_GPC4_VM \|
	210	S3C2410_GPC10_VD2 \| S3C2410_GPC11_VD3 \|
	211	S3C2410_GPC12_VD4 \| S3C2410_GPC13_VD5 \|
	212	S3C2410_GPC14_VD6 \| S3C2410_GPC15_VD7),
	213
	214	.gpccon_mask = (S3C2410_GPCCON_MASK(1) \| S3C2410_GPCCON_MASK(2) \|
	215	S3C2410_GPCCON_MASK(3) \| S3C2410_GPCCON_MASK(4) \|
	216	S3C2410_GPCCON_MASK(10) \| S3C2410_GPCCON_MASK(11) \|
	217	S3C2410_GPCCON_MASK(12) \| S3C2410_GPCCON_MASK(13) \|
	218	S3C2410_GPCCON_MASK(14) \| S3C2410_GPCCON_MASK(15)),
	219
	220	.gpdup = (0x3f << 2) \| (0x3f << 10),
	221
	222	.gpdcon = (S3C2410_GPD2_VD10 \| S3C2410_GPD3_VD11 \|
	223	S3C2410_GPD4_VD12 \| S3C2410_GPD5_VD13 \|
	224	S3C2410_GPD6_VD14 \| S3C2410_GPD7_VD15 \|
	225	S3C2410_GPD10_VD18 \| S3C2410_GPD11_VD19 \|
	226	S3C2410_GPD12_VD20 \| S3C2410_GPD13_VD21 \|
	227	S3C2410_GPD14_VD22 \| S3C2410_GPD15_VD23),
	228
	229	.gpdcon_mask = (S3C2410_GPDCON_MASK(2) \| S3C2410_GPDCON_MASK(3) \|
	230	S3C2410_GPDCON_MASK(4) \| S3C2410_GPDCON_MASK(5) \|
	231	S3C2410_GPDCON_MASK(6) \| S3C2410_GPDCON_MASK(7) \|
	232	S3C2410_GPDCON_MASK(10) \| S3C2410_GPDCON_MASK(11)\|
	233	S3C2410_GPDCON_MASK(12) \| S3C2410_GPDCON_MASK(13)\|
	234	S3C2410_GPDCON_MASK(14) \| S3C2410_GPDCON_MASK(15)),
	235	};
	236
	237	/* MMC/SD */
	238
	239	static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
	240	.gpio_detect = S3C2410_GPG(8),
	241	.gpio_wprotect = S3C2410_GPH(8),
	242	.set_power = NULL,
	243	.ocr_avail = MMC_VDD_32_33\|MMC_VDD_33_34,
	244	};
	245
	246	/* NAND Flash on MINI2440 board */
	247
	248	static struct mtd_partition mini2440_default_nand_part[] __initdata = {
	249	[0] = {
	250	.name = "u-boot",
	251	.size = SZ_256K,
	252	.offset = 0,
	253	},
	254	[1] = {
	255	.name = "u-boot-env",
	256	.size = SZ_128K,
	257	.offset = SZ_256K,
	258	},
	259	[2] = {
	260	.name = "kernel",
	261	/* 5 megabytes, for a kernel with no modules
262	* or a uImage with a ramdisk attached */
263	.size = 0x00500000,
264	.offset = SZ_256K + SZ_128K,
265	},
266	[3] = {
267	.name = "root",
268	.offset = SZ_256K + SZ_128K + 0x00500000,
269	.size = MTDPART_SIZ_FULL,
270	},
271	};
272
273	static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
274	[0] = {
275	.name = "nand",
276	.nr_chips = 1,
277	.nr_partitions = ARRAY_SIZE(mini2440_default_nand_part),
278	.partitions = mini2440_default_nand_part,
51af243c	279	.flash_bbt = 1, /* we use u-boot to create a BBT */
5102aa4a MP	280	},
	281	};
	282
	283	static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
	284	.tacls = 0,
	285	.twrph0 = 25,
	286	.twrph1 = 15,
	287	.nr_sets = ARRAY_SIZE(mini2440_nand_sets),
	288	.sets = mini2440_nand_sets,
	289	.ignore_unset_ecc = 1,
225bd1de	290	.ecc_mode = NAND_ECC_HW,
5102aa4a MP	291	};
	292
	293	/* DM9000AEP 10/100 ethernet controller */
	294
3ce2f76f	295	static struct resource mini2440_dm9k_resource[] = {
7498b728 TB	296	[0] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE, 4),
	297	[1] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE + 4, 4),
	298	[2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ \
	299	\| IORESOURCE_IRQ_HIGHEDGE),
5102aa4a MP	300	};
	301
	302	/*
	303	* The DM9000 has no eeprom, and it's MAC address is set by
	304	* the bootloader before starting the kernel.
	305	*/
3ce2f76f	306	static struct dm9000_plat_data mini2440_dm9k_pdata = {
5102aa4a MP	307	.flags = (DM9000_PLATF_16BITONLY \| DM9000_PLATF_NO_EEPROM),
	308	};
	309
3ce2f76f	310	static struct platform_device mini2440_device_eth = {
5102aa4a MP	311	.name = "dm9000",
	312	.id = -1,
	313	.num_resources = ARRAY_SIZE(mini2440_dm9k_resource),
	314	.resource = mini2440_dm9k_resource,
	315	.dev = {
	316	.platform_data = &mini2440_dm9k_pdata,
	317	},
	318	};
	319
	320	/* CON5
	321	* +--+ /-----\
	322	* \| \| \| \|
	323	* \| \| \| BAT \|
	324	* \| \| \_____/
	325	* \| \|
	326	* \| \| +----+ +----+
	327	* \| \| \| K5 \| \| K1 \|
	328	* \| \| +----+ +----+
	329	* \| \| +----+ +----+
	330	* \| \| \| K4 \| \| K2 \|
	331	* \| \| +----+ +----+
	332	* \| \| +----+ +----+
	333	* \| \| \| K6 \| \| K3 \|
	334	* \| \| +----+ +----+
	335	* .....
	336	*/
3ce2f76f	337	static struct gpio_keys_button mini2440_buttons[] = {
5102aa4a MP	338	{
	339	.gpio = S3C2410_GPG(0), /* K1 */
	340	.code = KEY_F1,
	341	.desc = "Button 1",
	342	.active_low = 1,
	343	},
	344	{
	345	.gpio = S3C2410_GPG(3), /* K2 */
	346	.code = KEY_F2,
	347	.desc = "Button 2",
	348	.active_low = 1,
	349	},
	350	{
	351	.gpio = S3C2410_GPG(5), /* K3 */
	352	.code = KEY_F3,
	353	.desc = "Button 3",
	354	.active_low = 1,
	355	},
	356	{
	357	.gpio = S3C2410_GPG(6), /* K4 */
	358	.code = KEY_POWER,
	359	.desc = "Power",
	360	.active_low = 1,
	361	},
	362	{
	363	.gpio = S3C2410_GPG(7), /* K5 */
	364	.code = KEY_F5,
	365	.desc = "Button 5",
	366	.active_low = 1,
	367	},
	368	#if 0
	369	/* this pin is also known as TCLK1 and seems to already
	370	* marked as "in use" somehow in the kernel -- possibly wrongly */
	371	{
	372	.gpio = S3C2410_GPG(11), /* K6 */
	373	.code = KEY_F6,
	374	.desc = "Button 6",
	375	.active_low = 1,
	376	},
	377	#endif
	378	};
	379
3ce2f76f	380	static struct gpio_keys_platform_data mini2440_button_data = {
5102aa4a MP	381	.buttons = mini2440_buttons,
	382	.nbuttons = ARRAY_SIZE(mini2440_buttons),
	383	};
	384
3ce2f76f	385	static struct platform_device mini2440_button_device = {
5102aa4a MP	386	.name = "gpio-keys",
	387	.id = -1,
	388	.dev = {
	389	.platform_data = &mini2440_button_data,
	390	}
	391	};
	392
	393	/* LEDS */
	394
0a3727ff	395	static struct s3c24xx_led_platdata mini2440_led1_pdata = {
5102aa4a MP	396	.name = "led1",
	397	.gpio = S3C2410_GPB(5),
	398	.flags = S3C24XX_LEDF_ACTLOW \| S3C24XX_LEDF_TRISTATE,
	399	.def_trigger = "heartbeat",
	400	};
	401
0a3727ff	402	static struct s3c24xx_led_platdata mini2440_led2_pdata = {
5102aa4a MP	403	.name = "led2",
	404	.gpio = S3C2410_GPB(6),
	405	.flags = S3C24XX_LEDF_ACTLOW \| S3C24XX_LEDF_TRISTATE,
	406	.def_trigger = "nand-disk",
	407	};
	408
0a3727ff	409	static struct s3c24xx_led_platdata mini2440_led3_pdata = {
5102aa4a MP	410	.name = "led3",
	411	.gpio = S3C2410_GPB(7),
	412	.flags = S3C24XX_LEDF_ACTLOW \| S3C24XX_LEDF_TRISTATE,
	413	.def_trigger = "mmc0",
	414	};
	415
0a3727ff	416	static struct s3c24xx_led_platdata mini2440_led4_pdata = {
5102aa4a MP	417	.name = "led4",
	418	.gpio = S3C2410_GPB(8),
	419	.flags = S3C24XX_LEDF_ACTLOW \| S3C24XX_LEDF_TRISTATE,
	420	.def_trigger = "",
	421	};
	422
0a3727ff	423	static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = {
5102aa4a MP	424	.name = "backlight",
	425	.gpio = S3C2410_GPG(4),
	426	.def_trigger = "backlight",
	427	};
	428
3ce2f76f	429	static struct platform_device mini2440_led1 = {
5102aa4a MP	430	.name = "s3c24xx_led",
	431	.id = 1,
	432	.dev = {
	433	.platform_data = &mini2440_led1_pdata,
	434	},
	435	};
	436
3ce2f76f	437	static struct platform_device mini2440_led2 = {
5102aa4a MP	438	.name = "s3c24xx_led",
	439	.id = 2,
	440	.dev = {
	441	.platform_data = &mini2440_led2_pdata,
	442	},
	443	};
	444
3ce2f76f	445	static struct platform_device mini2440_led3 = {
5102aa4a MP	446	.name = "s3c24xx_led",
	447	.id = 3,
	448	.dev = {
	449	.platform_data = &mini2440_led3_pdata,
	450	},
	451	};
	452
3ce2f76f	453	static struct platform_device mini2440_led4 = {
5102aa4a MP	454	.name = "s3c24xx_led",
	455	.id = 4,
	456	.dev = {
	457	.platform_data = &mini2440_led4_pdata,
	458	},
	459	};
	460
3ce2f76f	461	static struct platform_device mini2440_led_backlight = {
5102aa4a MP	462	.name = "s3c24xx_led",
	463	.id = 5,
	464	.dev = {
	465	.platform_data = &mini2440_led_backlight_pdata,
	466	},
	467	};
	468
	469	/* AUDIO */
	470
3ce2f76f	471	static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = {
5102aa4a MP	472	.l3_clk = S3C2410_GPB(4),
	473	.l3_mode = S3C2410_GPB(2),
	474	.l3_data = S3C2410_GPB(3),
	475	.model = UDA134X_UDA1341
	476	};
	477
3ce2f76f	478	static struct platform_device mini2440_audio = {
5102aa4a MP	479	.name = "s3c24xx_uda134x",
	480	.id = 0,
	481	.dev = {
	482	.platform_data = &mini2440_audio_pins,
	483	},
	484	};
	485
	486	/*
	487	* I2C devices
	488	*/
	489	static struct at24_platform_data at24c08 = {
	490	.byte_len = SZ_8K / 8,
	491	.page_size = 16,
	492	};
	493
	494	static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
	495	{
	496	I2C_BOARD_INFO("24c08", 0x50),
	497	.platform_data = &at24c08,
	498	},
	499	};
	500
11496471 SN	501	static struct uda134x_platform_data s3c24xx_uda134x = {
	502	.l3 = {
	503	.gpio_clk = S3C2410_GPB(4),
	504	.gpio_data = S3C2410_GPB(3),
	505	.gpio_mode = S3C2410_GPB(2),
	506	.use_gpios = 1,
	507	.data_hold = 1,
	508	.data_setup = 1,
	509	.clock_high = 1,
	510	.mode_hold = 1,
	511	.mode = 1,
	512	.mode_setup = 1,
	513	},
	514	.model = UDA134X_UDA1341,
	515	};
	516
a110f4ef MB	517	static struct platform_device uda1340_codec = {
	518	.name = "uda134x-codec",
	519	.id = -1,
11496471 SN	520	.dev = {
	521	.platform_data = &s3c24xx_uda134x,
	522	},
a110f4ef MB	523	};
a110f4ef MB	524
5102aa4a	525	static struct platform_device *mini2440_devices[] __initdata = {
b813248c	526	&s3c_device_ohci,
5102aa4a	527	&s3c_device_wdt,
5102aa4a MP	528	&s3c_device_i2c0,
	529	&s3c_device_rtc,
	530	&s3c_device_usbgadget,
	531	&mini2440_device_eth,
	532	&mini2440_led1,
	533	&mini2440_led2,
	534	&mini2440_led3,
	535	&mini2440_led4,
	536	&mini2440_button_device,
	537	&s3c_device_nand,
	538	&s3c_device_sdi,
2d0ab9c3	539	&s3c2440_device_dma,
5102aa4a	540	&s3c_device_iis,
a110f4ef	541	&uda1340_codec,
5102aa4a	542	&mini2440_audio,
5102aa4a MP	543	};
	544
	545	static void __init mini2440_map_io(void)
	546	{
	547	s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
5102aa4a	548	s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
7f78b6eb	549	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
5102aa4a MP	550	}
5102aa4a MP	551
a28d618e HS	552	static void __init mini2440_init_time(void)
	553	{
	554	s3c2440_init_clocks(12000000);
	555	samsung_timer_init();
	556	}
	557
5102aa4a MP	558	/*
	559	* mini2440_features string
	560	*
	561	* t = Touchscreen present
	562	* b = backlight control
	563	* c = camera [TODO]
	564	* 0-9 LCD configuration
	565	*
	566	*/
	567	static char mini2440_features_str[12] __initdata = "0tb";
	568
	569	static int __init mini2440_features_setup(char *str)
	570	{
	571	if (str)
	572	strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
	573	return 1;
	574	}
	575
	576	__setup("mini2440=", mini2440_features_setup);
	577
	578	#define FEATURE_SCREEN (1 << 0)
	579	#define FEATURE_BACKLIGHT (1 << 1)
	580	#define FEATURE_TOUCH (1 << 2)
	581	#define FEATURE_CAMERA (1 << 3)
	582
	583	struct mini2440_features_t {
	584	int count;
	585	int done;
	586	int lcd_index;
	587	struct platform_device *optional[8];
	588	};
	589
d34c1fcd	590	static void __init mini2440_parse_features(
5102aa4a MP	591	struct mini2440_features_t * features,
	592	const char * features_str )
	593	{
	594	const char * fp = features_str;
	595
	596	features->count = 0;
	597	features->done = 0;
	598	features->lcd_index = -1;
	599
	600	while (*fp) {
	601	char f = *fp++;
	602
	603	switch (f) {
	604	case '0'...'9': /* tft screen */
	605	if (features->done & FEATURE_SCREEN) {
	606	printk(KERN_INFO "MINI2440: '%c' ignored, "
	607	"screen type already set\n", f);
	608	} else {
	609	int li = f - '0';
	610	if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
	611	printk(KERN_INFO "MINI2440: "
	612	"'%c' out of range LCD mode\n", f);
	613	else {
	614	features->optional[features->count++] =
	615	&s3c_device_lcd;
	616	features->lcd_index = li;
	617	}
	618	}
	619	features->done \|= FEATURE_SCREEN;
	620	break;
	621	case 'b':
	622	if (features->done & FEATURE_BACKLIGHT)
	623	printk(KERN_INFO "MINI2440: '%c' ignored, "
	624	"backlight already set\n", f);
	625	else {
	626	features->optional[features->count++] =
	627	&mini2440_led_backlight;
	628	}
	629	features->done \|= FEATURE_BACKLIGHT;
	630	break;
	631	case 't':
	632	printk(KERN_INFO "MINI2440: '%c' ignored, "
	633	"touchscreen not compiled in\n", f);
	634	break;
	635	case 'c':
	636	if (features->done & FEATURE_CAMERA)
	637	printk(KERN_INFO "MINI2440: '%c' ignored, "
	638	"camera already registered\n", f);
	639	else
	640	features->optional[features->count++] =
	641	&s3c_device_camif;
	642	features->done \|= FEATURE_CAMERA;
	643	break;
	644	}
	645	}
	646	}
	647
	648	static void __init mini2440_init(void)
	649	{
	650	struct mini2440_features_t features = { 0 };
	651	int i;
	652
	653	printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
	654	mini2440_features_str);
655
656	/* Parse the feature string */
657	mini2440_parse_features(&features, mini2440_features_str);
658
659	/* turn LCD on */
40b956f0	660	s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
5102aa4a MP	661
5102aa4a MP	662	/* Turn the backlight early on */
57370aed SN	663	WARN_ON(gpio_request_one(S3C2410_GPG(4), GPIOF_OUT_INIT_HIGH, NULL));
57370aed SN	664	gpio_free(S3C2410_GPG(4));
5102aa4a MP	665
5102aa4a MP	666	/* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
42aa322c	667	gpio_request_one(S3C2410_GPB(1), GPIOF_IN, NULL);
64f508da	668	s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP);
42aa322c	669	gpio_free(S3C2410_GPB(1));
5102aa4a	670
5102aa4a MP	671	/* mark the key as input, without pullups (there is one on the board) */
5102aa4a MP	672	for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
64f508da BD	673	s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP);
64f508da BD	674	s3c_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT);
5102aa4a MP	675	}
	676	if (features.lcd_index != -1) {
	677	int li;
	678
	679	mini2440_fb_info.displays =
	680	&mini2440_lcd_cfg[features.lcd_index];
	681
	682	printk(KERN_INFO "MINI2440: LCD");
	683	for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
	684	if (li == features.lcd_index)
	685	printk(" [%d:%dx%d]", li,
	686	mini2440_lcd_cfg[li].width,
	687	mini2440_lcd_cfg[li].height);
	688	else
	689	printk(" %d:%dx%d", li,
	690	mini2440_lcd_cfg[li].width,
	691	mini2440_lcd_cfg[li].height);
	692	printk("\n");
	693	s3c24xx_fb_set_platdata(&mini2440_fb_info);
	694	}
2a3a1804	695
5102aa4a	696	s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
22c810ab	697	s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
2a3a1804	698	s3c_nand_set_platdata(&mini2440_nand_info);
5102aa4a	699	s3c_i2c0_set_platdata(NULL);
2a3a1804	700
5102aa4a MP	701	i2c_register_board_info(0, mini2440_i2c_devs,
	702	ARRAY_SIZE(mini2440_i2c_devs));
	703
	704	platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
	705
	706	if (features.count) /* the optional features */
	707	platform_add_devices(features.optional, features.count);
	708
	709	}
	710
	711
	712	MACHINE_START(MINI2440, "MINI2440")
	713	/* Maintainer: Michel Pollet <buserror@gmail.com> */
69d50710	714	.atag_offset = 0x100,
5102aa4a MP	715	.map_io = mini2440_map_io,
5102aa4a MP	716	.init_machine = mini2440_init,
ce6c164b	717	.init_irq = s3c2440_init_irq,
a28d618e	718	.init_time = mini2440_init_time,
5102aa4a	719	MACHINE_END