[mirror_ubuntu-zesty-kernel.git] / arch / arm / mach-s3c2410 / mach-n30.c

/* Machine specific code for the Acer n30, Acer N35, Navman PiN 570,
 * Yakumo AlphaX and Airis NC05 PDAs.
 *
 * Copyright (c) 2003-2005 Simtec Electronics
 *	Ben Dooks <ben@simtec.co.uk>
 *
 * Copyright (c) 2005-2008 Christer Weinigel <christer@weinigel.se>
 *
 * There is a wiki with more information about the n30 port at
 * http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
 *
 * 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/gpio_keys.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/timer.h>
#include <linux/io.h>

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

#include <mach/fb.h>
#include <mach/leds-gpio.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>

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

#include <plat/iic.h>
#include <plat/regs-serial.h>

#include <plat/clock.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/s3c2410.h>
#include <plat/udc.h>

static struct map_desc n30_iodesc[] __initdata = {
	/* nothing here yet */
};

static struct s3c2410_uartcfg n30_uartcfgs[] = {
	/* Normal serial port */
	[0] = {
		.hwport	     = 0,
		.flags	     = 0,
		.ucon	     = 0x2c5,
		.ulcon	     = 0x03,
		.ufcon	     = 0x51,
	},
	/* IR port */
	[1] = {
		.hwport	     = 1,
		.flags	     = 0,
		.uart_flags  = UPF_CONS_FLOW,
		.ucon	     = 0x2c5,
		.ulcon	     = 0x43,
		.ufcon	     = 0x51,
	},
	/* On the N30 the bluetooth controller is connected here.
	 * On the N35 and variants the GPS receiver is connected here. */
	[2] = {
		.hwport	     = 2,
		.flags	     = 0,
		.ucon	     = 0x2c5,
		.ulcon	     = 0x03,
		.ufcon	     = 0x51,
	},
};

static void n30_udc_pullup(enum s3c2410_udc_cmd_e cmd)
{
	switch (cmd) {
	case S3C2410_UDC_P_ENABLE :
		s3c2410_gpio_setpin(S3C2410_GPB3, 1);
		break;
	case S3C2410_UDC_P_DISABLE :
		s3c2410_gpio_setpin(S3C2410_GPB3, 0);
		break;
	case S3C2410_UDC_P_RESET :
		break;
	default:
		break;
	}
}

static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
	.udc_command		= n30_udc_pullup,
	.vbus_pin		= S3C2410_GPG1,
	.vbus_pin_inverted	= 0,
};

static struct gpio_keys_button n30_buttons[] = {
	{
		.gpio		= S3C2410_GPF0,
		.code		= KEY_POWER,
		.desc		= "Power",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG9,
		.code		= KEY_UP,
		.desc		= "Thumbwheel Up",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG8,
		.code		= KEY_DOWN,
		.desc		= "Thumbwheel Down",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG7,
		.code		= KEY_ENTER,
		.desc		= "Thumbwheel Press",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF7,
		.code		= KEY_HOMEPAGE,
		.desc		= "Home",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF6,
		.code		= KEY_CALENDAR,
		.desc		= "Calendar",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF5,
		.code		= KEY_ADDRESSBOOK,
		.desc		= "Contacts",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF4,
		.code		= KEY_MAIL,
		.desc		= "Mail",
		.active_low	= 0,
	},
};

static struct gpio_keys_platform_data n30_button_data = {
	.buttons	= n30_buttons,
	.nbuttons	= ARRAY_SIZE(n30_buttons),
};

static struct platform_device n30_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.dev		= {
		.platform_data	= &n30_button_data,
	}
};

static struct gpio_keys_button n35_buttons[] = {
	{
		.gpio		= S3C2410_GPF0,
		.code		= KEY_POWER,
		.desc		= "Power",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG9,
		.code		= KEY_UP,
		.desc		= "Joystick Up",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG8,
		.code		= KEY_DOWN,
		.desc		= "Joystick Down",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG6,
		.code		= KEY_DOWN,
		.desc		= "Joystick Left",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG5,
		.code		= KEY_DOWN,
		.desc		= "Joystick Right",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG7,
		.code		= KEY_ENTER,
		.desc		= "Joystick Press",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF7,
		.code		= KEY_HOMEPAGE,
		.desc		= "Home",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF6,
		.code		= KEY_CALENDAR,
		.desc		= "Calendar",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF5,
		.code		= KEY_ADDRESSBOOK,
		.desc		= "Contacts",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF4,
		.code		= KEY_MAIL,
		.desc		= "Mail",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF3,
		.code		= SW_RADIO,
		.desc		= "GPS Antenna",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG2,
		.code		= SW_HEADPHONE_INSERT,
		.desc		= "Headphone",
		.active_low	= 0,
	},
};

static struct gpio_keys_platform_data n35_button_data = {
	.buttons	= n35_buttons,
	.nbuttons	= ARRAY_SIZE(n35_buttons),
};

static struct platform_device n35_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.num_resources	= 0,
	.dev		= {
		.platform_data	= &n35_button_data,
	}
};

/* This is the bluetooth LED on the device. */
static struct s3c24xx_led_platdata n30_blue_led_pdata = {
	.name		= "blue_led",
	.gpio		= S3C2410_GPG6,
	.def_trigger	= "",
};

/* This LED is driven by the battery microcontroller, and is blinking
 * red, blinking green or solid green when the battery is low,
 * charging or full respectively.  By driving GPD9 low, it's possible
 * to force the LED to blink red, so call that warning LED.  */
static struct s3c24xx_led_platdata n30_warning_led_pdata = {
	.name		= "warning_led",
	.flags          = S3C24XX_LEDF_ACTLOW,
	.gpio		= S3C2410_GPD9,
	.def_trigger	= "",
};

static struct platform_device n30_blue_led = {
	.name		= "s3c24xx_led",
	.id		= 1,
	.dev		= {
		.platform_data	= &n30_blue_led_pdata,
	},
};

static struct platform_device n30_warning_led = {
	.name		= "s3c24xx_led",
	.id		= 2,
	.dev		= {
		.platform_data	= &n30_warning_led_pdata,
	},
};

static struct s3c2410fb_display n30_display __initdata = {
	.type		= S3C2410_LCDCON1_TFT,
	.width		= 240,
	.height		= 320,
	.pixclock	= 170000,

	.xres		= 240,
	.yres		= 320,
	.bpp		= 16,
	.left_margin	= 3,
	.right_margin	= 40,
	.hsync_len	= 40,
	.upper_margin	= 2,
	.lower_margin	= 3,
	.vsync_len	= 2,

	.lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME,
};

static struct s3c2410fb_mach_info n30_fb_info __initdata = {
	.displays	= &n30_display,
	.num_displays	= 1,
	.default_display = 0,
	.lpcsel		= 0x06,
};

static struct platform_device *n30_devices[] __initdata = {
	&s3c_device_lcd,
	&s3c_device_wdt,
	&s3c_device_i2c0,
	&s3c_device_iis,
	&s3c_device_usb,
	&s3c_device_usbgadget,
	&n30_button_device,
	&n30_blue_led,
	&n30_warning_led,
};

static struct platform_device *n35_devices[] __initdata = {
	&s3c_device_lcd,
	&s3c_device_wdt,
	&s3c_device_i2c0,
	&s3c_device_iis,
	&s3c_device_usbgadget,
	&n35_button_device,
};

static struct s3c2410_platform_i2c n30_i2ccfg = {
	.flags		= 0,
	.slave_addr	= 0x10,
	.frequency	= 10*1000,
};

/* Lots of hardcoded stuff, but it sets up the hardware in a useful
 * state so that we can boot Linux directly from flash. */
static void __init n30_hwinit(void)
{
	/* GPA0-11 special functions -- unknown what they do
	 * GPA12 N30 special function -- unknown what it does
	 *       N35/PiN output -- unknown what it does
	 *
	 * A12 is nGCS1 on the N30 and an output on the N35/PiN.  I
	 * don't think it does anything useful on the N30, so I ought
	 * to make it an output there too since it always driven to 0
	 * as far as I can tell. */
	if (machine_is_n30())
		__raw_writel(0x007fffff, S3C2410_GPACON);
	if (machine_is_n35())
		__raw_writel(0x007fefff, S3C2410_GPACON);
	__raw_writel(0x00000000, S3C2410_GPADAT);

	/* GPB0 TOUT0 backlight level
	 * GPB1 output 1=backlight on
	 * GPB2 output IrDA enable 0=transceiver enabled, 1=disabled
	 * GPB3 output USB D+ pull up 0=disabled, 1=enabled
	 * GPB4 N30 output -- unknown function
	 *      N30/PiN GPS control 0=GPS enabled, 1=GPS disabled
	 * GPB5 output -- unknown function
	 * GPB6 input -- unknown function
	 * GPB7 output -- unknown function
	 * GPB8 output -- probably LCD driver enable
	 * GPB9 output -- probably LCD VSYNC driver enable
	 * GPB10 output -- probably LCD HSYNC driver enable
	 */
	__raw_writel(0x00154556, S3C2410_GPBCON);
	__raw_writel(0x00000750, S3C2410_GPBDAT);
	__raw_writel(0x00000073, S3C2410_GPBUP);

	/* GPC0 input RS232 DCD/DSR/RI
	 * GPC1 LCD
	 * GPC2 output RS232 DTR?
	 * GPC3 input RS232 DCD/DSR/RI
	 * GPC4 LCD
	 * GPC5 output 0=NAND write enabled, 1=NAND write protect
	 * GPC6 input -- unknown function
	 * GPC7 input charger status 0=charger connected
	 *      this input can be triggered by power on the USB device
	 *      port too, but will go back to disconnected soon after.
	 * GPC8 N30/N35 output -- unknown function, always driven to 1
	 *      PiN input -- unknown function, always read as 1
	 *      Make it an input with a pull up for all models.
	 * GPC9-15 LCD
	 */
	__raw_writel(0xaaa80618, S3C2410_GPCCON);
	__raw_writel(0x0000014c, S3C2410_GPCDAT);
	__raw_writel(0x0000fef2, S3C2410_GPCUP);

	/* GPD0 input -- unknown function
	 * GPD1-D7 LCD
	 * GPD8 N30 output -- unknown function
	 *      N35/PiN output 1=GPS LED on
	 * GPD9 output 0=power led blinks red, 1=normal power led function
	 * GPD10 output -- unknown function
	 * GPD11-15 LCD drivers
	 */
	__raw_writel(0xaa95aaa4, S3C2410_GPDCON);
	__raw_writel(0x00000601, S3C2410_GPDDAT);
	__raw_writel(0x0000fbfe, S3C2410_GPDUP);

	/* GPE0-4 I2S audio bus
	 * GPE5-10 SD/MMC bus
	 * E11-13 outputs -- unknown function, probably power management
	 * E14-15 I2C bus connected to the battery controller
	 */
	__raw_writel(0xa56aaaaa, S3C2410_GPECON);
	__raw_writel(0x0000efc5, S3C2410_GPEDAT);
	__raw_writel(0x0000f81f, S3C2410_GPEUP);

	/* GPF0  input 0=power button pressed
	 * GPF1  input SD/MMC switch 0=card present
	 * GPF2  N30 1=reset button pressed (inverted compared to the rest)
	 *	 N35/PiN 0=reset button pressed
	 * GPF3  N30/PiN input -- unknown function
	 *       N35 input GPS antenna position, 0=antenna closed, 1=open
	 * GPF4  input 0=button 4 pressed
	 * GPF5  input 0=button 3 pressed
	 * GPF6  input 0=button 2 pressed
	 * GPF7  input 0=button 1 pressed
	 */
	__raw_writel(0x0000aaaa, S3C2410_GPFCON);
	__raw_writel(0x00000000, S3C2410_GPFDAT);
	__raw_writel(0x000000ff, S3C2410_GPFUP);

	/* GPG0  input RS232 DCD/DSR/RI
	 * GPG1  input 1=USB gadget port has power from a host
	 * GPG2  N30 input -- unknown function
	 *       N35/PiN input 0=headphones plugged in, 1=not plugged in
	 * GPG3  N30 output -- unknown function
	 *       N35/PiN input with unknown function
	 * GPG4  N30 output 0=MMC enabled, 1=MMC disabled
	 * GPG5  N30 output 0=BlueTooth chip disabled, 1=enabled
	 *       N35/PiN input joystick right
	 * GPG6  N30 output 0=blue led on, 1=off
	 *       N35/PiN input joystick left
	 * GPG7  input 0=thumbwheel pressed
	 * GPG8  input 0=thumbwheel down
	 * GPG9  input 0=thumbwheel up
	 * GPG10 input SD/MMC write protect switch
	 * GPG11 N30 input -- unknown function
	 *       N35 output 0=GPS antenna powered, 1=not powered
	 *       PiN output -- unknown function
	 * GPG12-15 touch screen functions
	 *
	 * The pullups differ between the models, so enable all
	 * pullups that are enabled on any of the models.
	 */
	if (machine_is_n30())
		__raw_writel(0xff0a956a, S3C2410_GPGCON);
	if (machine_is_n35())
		__raw_writel(0xff4aa92a, S3C2410_GPGCON);
	__raw_writel(0x0000e800, S3C2410_GPGDAT);
	__raw_writel(0x0000f86f, S3C2410_GPGUP);

	/* GPH0/1/2/3 RS232 serial port
	 * GPH4/5 IrDA serial port
	 * GPH6/7  N30 BlueTooth serial port
	 *         N35/PiN GPS receiver
	 * GPH8 input -- unknown function
	 * GPH9 CLKOUT0 HCLK -- unknown use
	 * GPH10 CLKOUT1 FCLK -- unknown use
	 *
	 * The pull ups for H6/H7 are enabled on N30 but not on the
	 * N35/PiN.  I suppose is useful for a budget model of the N30
	 * with no bluetooh.  It doesn't hurt to have the pull ups
	 * enabled on the N35, so leave them enabled for all models.
	 */
	__raw_writel(0x0028aaaa, S3C2410_GPHCON);
	__raw_writel(0x000005ef, S3C2410_GPHDAT);
	__raw_writel(0x0000063f, S3C2410_GPHUP);
}

static void __init n30_map_io(void)
{
	s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
	n30_hwinit();
	s3c24xx_init_clocks(0);
	s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
}

static void __init n30_init_irq(void)
{
	s3c24xx_init_irq();
}

/* GPB3 is the line that controls the pull-up for the USB D+ line */

static void __init n30_init(void)
{
	s3c24xx_fb_set_platdata(&n30_fb_info);
	s3c_device_i2c0.dev.platform_data = &n30_i2ccfg;
	s3c24xx_udc_set_platdata(&n30_udc_cfg);

	/* Turn off suspend on both USB ports, and switch the
	 * selectable USB port to USB device mode. */

	s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
			      S3C2410_MISCCR_USBSUSPND0 |
			      S3C2410_MISCCR_USBSUSPND1, 0x0);

	if (machine_is_n30()) {
		/* Turn off suspend on both USB ports, and switch the
		 * selectable USB port to USB device mode. */
		s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
				      S3C2410_MISCCR_USBSUSPND0 |
				      S3C2410_MISCCR_USBSUSPND1, 0x0);

		platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
	}

	if (machine_is_n35()) {
		/* Turn off suspend and switch the selectable USB port
		 * to USB device mode.  Turn on suspend for the host
		 * port since it is not connected on the N35.
		 *
		 * Actually, the host port is available at some pads
		 * on the back of the device, so it would actually be
		 * possible to add a USB device inside the N35 if you
		 * are willing to do some hardware modifications. */
		s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
				      S3C2410_MISCCR_USBSUSPND0 |
				      S3C2410_MISCCR_USBSUSPND1,
				      S3C2410_MISCCR_USBSUSPND1);

		platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
	}
}

MACHINE_START(N30, "Acer-N30")
	/* Maintainer: Christer Weinigel <christer@weinigel.se>,
				Ben Dooks <ben-linux@fluff.org>
	*/
	.phys_io	= S3C2410_PA_UART,
	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
	.boot_params	= S3C2410_SDRAM_PA + 0x100,
	.timer		= &s3c24xx_timer,
	.init_machine	= n30_init,
	.init_irq	= n30_init_irq,
	.map_io		= n30_map_io,
MACHINE_END

MACHINE_START(N35, "Acer-N35")
	/* Maintainer: Christer Weinigel <christer@weinigel.se>
	*/
	.phys_io	= S3C2410_PA_UART,
	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
	.boot_params	= S3C2410_SDRAM_PA + 0x100,
	.timer		= &s3c24xx_timer,
	.init_machine	= n30_init,
	.init_irq	= n30_init_irq,
	.map_io		= n30_map_io,
MACHINE_END
Commit	Line	Data
95790873 CW	1	/* Machine specific code for the Acer n30, Acer N35, Navman PiN 570,
95790873 CW	2	* Yakumo AlphaX and Airis NC05 PDAs.
1da177e4 LT	3	*
	4	* Copyright (c) 2003-2005 Simtec Electronics
	5	* Ben Dooks <ben@simtec.co.uk>
	6	*
196a0475	7	* Copyright (c) 2005-2008 Christer Weinigel <christer@weinigel.se>
1da177e4 LT	8	*
	9	* There is a wiki with more information about the n30 port at
	10	* http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License version 2 as
	14	* published by the Free Software Foundation.
95790873	15	*/
1da177e4 LT	16
	17	#include <linux/kernel.h>
	18	#include <linux/types.h>
196a0475	19
62065750	20	#include <linux/gpio_keys.h>
196a0475	21	#include <linux/init.h>
62065750	22	#include <linux/input.h>
196a0475	23	#include <linux/interrupt.h>
d052d1be	24	#include <linux/platform_device.h>
196a0475 CW	25	#include <linux/serial_core.h>
196a0475 CW	26	#include <linux/timer.h>
fced80c7	27	#include <linux/io.h>
1da177e4	28
a09e64fb	29	#include <mach/hardware.h>
1da177e4 LT	30	#include <asm/irq.h>
	31	#include <asm/mach-types.h>
	32
a09e64fb RK	33	#include <mach/fb.h>
	34	#include <mach/leds-gpio.h>
	35	#include <mach/regs-gpio.h>
	36	#include <mach/regs-lcd.h>
196a0475 CW	37
	38	#include <asm/mach/arch.h>
	39	#include <asm/mach/irq.h>
	40	#include <asm/mach/map.h>
	41
9498cb79	42	#include <plat/iic.h>
a2b7ba9c	43	#include <plat/regs-serial.h>
1da177e4	44
d5120ae7	45	#include <plat/clock.h>
a2b7ba9c BD	46	#include <plat/cpu.h>
	47	#include <plat/devs.h>
	48	#include <plat/s3c2410.h>
57bd4b91	49	#include <plat/udc.h>
1da177e4 LT	50
	51	static struct map_desc n30_iodesc[] __initdata = {
	52	/* nothing here yet */
	53	};
	54
	55	static struct s3c2410_uartcfg n30_uartcfgs[] = {
	56	/* Normal serial port */
	57	[0] = {
	58	.hwport = 0,
	59	.flags = 0,
	60	.ucon = 0x2c5,
	61	.ulcon = 0x03,
	62	.ufcon = 0x51,
	63	},
	64	/* IR port */
	65	[1] = {
	66	.hwport = 1,
	67	.flags = 0,
	68	.uart_flags = UPF_CONS_FLOW,
	69	.ucon = 0x2c5,
	70	.ulcon = 0x43,
	71	.ufcon = 0x51,
	72	},
95790873 CW	73	/* On the N30 the bluetooth controller is connected here.
95790873 CW	74	* On the N35 and variants the GPS receiver is connected here. */
1da177e4 LT	75	[2] = {
	76	.hwport = 2,
	77	.flags = 0,
	78	.ucon = 0x2c5,
	79	.ulcon = 0x03,
	80	.ufcon = 0x51,
	81	},
	82	};
	83
d088e5fe CW	84	static void n30_udc_pullup(enum s3c2410_udc_cmd_e cmd)
d088e5fe CW	85	{
a6755780 BD	86	switch (cmd) {
	87	case S3C2410_UDC_P_ENABLE :
	88	s3c2410_gpio_setpin(S3C2410_GPB3, 1);
	89	break;
	90	case S3C2410_UDC_P_DISABLE :
	91	s3c2410_gpio_setpin(S3C2410_GPB3, 0);
	92	break;
	93	case S3C2410_UDC_P_RESET :
	94	break;
	95	default:
	96	break;
d088e5fe CW	97	}
	98	}
	99
	100	static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
	101	.udc_command = n30_udc_pullup,
	102	.vbus_pin = S3C2410_GPG1,
	103	.vbus_pin_inverted = 0,
	104	};
	105
62065750 CW	106	static struct gpio_keys_button n30_buttons[] = {
	107	{
	108	.gpio = S3C2410_GPF0,
	109	.code = KEY_POWER,
	110	.desc = "Power",
	111	.active_low = 0,
	112	},
	113	{
	114	.gpio = S3C2410_GPG9,
	115	.code = KEY_UP,
	116	.desc = "Thumbwheel Up",
	117	.active_low = 0,
	118	},
	119	{
	120	.gpio = S3C2410_GPG8,
	121	.code = KEY_DOWN,
	122	.desc = "Thumbwheel Down",
	123	.active_low = 0,
	124	},
	125	{
	126	.gpio = S3C2410_GPG7,
	127	.code = KEY_ENTER,
	128	.desc = "Thumbwheel Press",
	129	.active_low = 0,
	130	},
	131	{
	132	.gpio = S3C2410_GPF7,
	133	.code = KEY_HOMEPAGE,
	134	.desc = "Home",
	135	.active_low = 0,
	136	},
	137	{
	138	.gpio = S3C2410_GPF6,
	139	.code = KEY_CALENDAR,
	140	.desc = "Calendar",
	141	.active_low = 0,
	142	},
	143	{
	144	.gpio = S3C2410_GPF5,
	145	.code = KEY_ADDRESSBOOK,
	146	.desc = "Contacts",
	147	.active_low = 0,
	148	},
	149	{
	150	.gpio = S3C2410_GPF4,
	151	.code = KEY_MAIL,
	152	.desc = "Mail",
	153	.active_low = 0,
	154	},
	155	};
	156
	157	static struct gpio_keys_platform_data n30_button_data = {
	158	.buttons = n30_buttons,
	159	.nbuttons = ARRAY_SIZE(n30_buttons),
	160	};
	161
	162	static struct platform_device n30_button_device = {
	163	.name = "gpio-keys",
	164	.id = -1,
	165	.dev = {
	166	.platform_data = &n30_button_data,
	167	}
	168	};
	169
95790873 CW	170	static struct gpio_keys_button n35_buttons[] = {
	171	{
	172	.gpio = S3C2410_GPF0,
	173	.code = KEY_POWER,
	174	.desc = "Power",
	175	.active_low = 0,
	176	},
	177	{
	178	.gpio = S3C2410_GPG9,
	179	.code = KEY_UP,
	180	.desc = "Joystick Up",
	181	.active_low = 0,
	182	},
	183	{
	184	.gpio = S3C2410_GPG8,
	185	.code = KEY_DOWN,
	186	.desc = "Joystick Down",
	187	.active_low = 0,
	188	},
	189	{
	190	.gpio = S3C2410_GPG6,
	191	.code = KEY_DOWN,
	192	.desc = "Joystick Left",
	193	.active_low = 0,
	194	},
	195	{
	196	.gpio = S3C2410_GPG5,
	197	.code = KEY_DOWN,
	198	.desc = "Joystick Right",
	199	.active_low = 0,
	200	},
	201	{
	202	.gpio = S3C2410_GPG7,
	203	.code = KEY_ENTER,
	204	.desc = "Joystick Press",
	205	.active_low = 0,
	206	},
	207	{
	208	.gpio = S3C2410_GPF7,
	209	.code = KEY_HOMEPAGE,
	210	.desc = "Home",
	211	.active_low = 0,
	212	},
	213	{
	214	.gpio = S3C2410_GPF6,
	215	.code = KEY_CALENDAR,
	216	.desc = "Calendar",
	217	.active_low = 0,
	218	},
	219	{
	220	.gpio = S3C2410_GPF5,
	221	.code = KEY_ADDRESSBOOK,
	222	.desc = "Contacts",
	223	.active_low = 0,
	224	},
	225	{
	226	.gpio = S3C2410_GPF4,
	227	.code = KEY_MAIL,
	228	.desc = "Mail",
	229	.active_low = 0,
	230	},
	231	{
	232	.gpio = S3C2410_GPF3,
	233	.code = SW_RADIO,
234	.desc = "GPS Antenna",
235	.active_low = 0,
236	},
237	{
238	.gpio = S3C2410_GPG2,
239	.code = SW_HEADPHONE_INSERT,
240	.desc = "Headphone",
241	.active_low = 0,
242	},
243	};
244
245	static struct gpio_keys_platform_data n35_button_data = {
246	.buttons = n35_buttons,
247	.nbuttons = ARRAY_SIZE(n35_buttons),
248	};
249
250	static struct platform_device n35_button_device = {
251	.name = "gpio-keys",
252	.id = -1,
253	.num_resources = 0,
254	.dev = {
255	.platform_data = &n35_button_data,
256	}
257	};
258
865cc639 CW	259	/* This is the bluetooth LED on the device. */
	260	static struct s3c24xx_led_platdata n30_blue_led_pdata = {
	261	.name = "blue_led",
	262	.gpio = S3C2410_GPG6,
	263	.def_trigger = "",
	264	};
	265
	266	/* This LED is driven by the battery microcontroller, and is blinking
	267	* red, blinking green or solid green when the battery is low,
	268	* charging or full respectively. By driving GPD9 low, it's possible
	269	* to force the LED to blink red, so call that warning LED. */
	270	static struct s3c24xx_led_platdata n30_warning_led_pdata = {
	271	.name = "warning_led",
	272	.flags = S3C24XX_LEDF_ACTLOW,
	273	.gpio = S3C2410_GPD9,
	274	.def_trigger = "",
	275	};
	276
	277	static struct platform_device n30_blue_led = {
	278	.name = "s3c24xx_led",
	279	.id = 1,
	280	.dev = {
	281	.platform_data = &n30_blue_led_pdata,
	282	},
	283	};
	284
	285	static struct platform_device n30_warning_led = {
	286	.name = "s3c24xx_led",
	287	.id = 2,
	288	.dev = {
	289	.platform_data = &n30_warning_led_pdata,
	290	},
	291	};
	292
e43f2383	293	static struct s3c2410fb_display n30_display __initdata = {
a6755780 BD	294	.type = S3C2410_LCDCON1_TFT,
	295	.width = 240,
	296	.height = 320,
	297	.pixclock = 170000,
	298
	299	.xres = 240,
	300	.yres = 320,
	301	.bpp = 16,
	302	.left_margin = 3,
	303	.right_margin = 40,
	304	.hsync_len = 40,
	305	.upper_margin = 2,
	306	.lower_margin = 3,
	307	.vsync_len = 2,
e43f2383 CW	308
	309	.lcdcon5 = S3C2410_LCDCON5_INVVLINE \| S3C2410_LCDCON5_INVVFRAME,
	310	};
	311
	312	static struct s3c2410fb_mach_info n30_fb_info __initdata = {
a6755780 BD	313	.displays = &n30_display,
a6755780 BD	314	.num_displays = 1,
e43f2383	315	.default_display = 0,
a6755780	316	.lpcsel = 0x06,
e43f2383 CW	317	};
e43f2383 CW	318
1da177e4	319	static struct platform_device *n30_devices[] __initdata = {
1da177e4 LT	320	&s3c_device_lcd,
1da177e4 LT	321	&s3c_device_wdt,
3e1b776c	322	&s3c_device_i2c0,
1da177e4	323	&s3c_device_iis,
196a0475	324	&s3c_device_usb,
1da177e4	325	&s3c_device_usbgadget,
62065750	326	&n30_button_device,
865cc639 CW	327	&n30_blue_led,
865cc639 CW	328	&n30_warning_led,
1da177e4 LT	329	};
1da177e4 LT	330
95790873 CW	331	static struct platform_device *n35_devices[] __initdata = {
	332	&s3c_device_lcd,
	333	&s3c_device_wdt,
3e1b776c	334	&s3c_device_i2c0,
95790873 CW	335	&s3c_device_iis,
	336	&s3c_device_usbgadget,
	337	&n35_button_device,
	338	};
	339
1da177e4 LT	340	static struct s3c2410_platform_i2c n30_i2ccfg = {
	341	.flags = 0,
	342	.slave_addr = 0x10,
c564e6ae	343	.frequency = 10*1000,
1da177e4 LT	344	};
1da177e4 LT	345
9a2ddb78 CW	346	/* Lots of hardcoded stuff, but it sets up the hardware in a useful
	347	* state so that we can boot Linux directly from flash. */
	348	static void __init n30_hwinit(void)
	349	{
	350	/* GPA0-11 special functions -- unknown what they do
	351	* GPA12 N30 special function -- unknown what it does
	352	* N35/PiN output -- unknown what it does
	353	*
	354	* A12 is nGCS1 on the N30 and an output on the N35/PiN. I
	355	* don't think it does anything useful on the N30, so I ought
	356	* to make it an output there too since it always driven to 0
	357	* as far as I can tell. */
	358	if (machine_is_n30())
	359	__raw_writel(0x007fffff, S3C2410_GPACON);
	360	if (machine_is_n35())
	361	__raw_writel(0x007fefff, S3C2410_GPACON);
	362	__raw_writel(0x00000000, S3C2410_GPADAT);
	363
	364	/* GPB0 TOUT0 backlight level
	365	* GPB1 output 1=backlight on
	366	* GPB2 output IrDA enable 0=transceiver enabled, 1=disabled
	367	* GPB3 output USB D+ pull up 0=disabled, 1=enabled
	368	* GPB4 N30 output -- unknown function
	369	* N30/PiN GPS control 0=GPS enabled, 1=GPS disabled
	370	* GPB5 output -- unknown function
	371	* GPB6 input -- unknown function
	372	* GPB7 output -- unknown function
	373	* GPB8 output -- probably LCD driver enable
	374	* GPB9 output -- probably LCD VSYNC driver enable
	375	* GPB10 output -- probably LCD HSYNC driver enable
	376	*/
	377	__raw_writel(0x00154556, S3C2410_GPBCON);
	378	__raw_writel(0x00000750, S3C2410_GPBDAT);
	379	__raw_writel(0x00000073, S3C2410_GPBUP);
	380
	381	/* GPC0 input RS232 DCD/DSR/RI
	382	* GPC1 LCD
	383	* GPC2 output RS232 DTR?
	384	* GPC3 input RS232 DCD/DSR/RI
	385	* GPC4 LCD
	386	* GPC5 output 0=NAND write enabled, 1=NAND write protect
	387	* GPC6 input -- unknown function
	388	* GPC7 input charger status 0=charger connected
	389	* this input can be triggered by power on the USB device
	390	* port too, but will go back to disconnected soon after.
	391	* GPC8 N30/N35 output -- unknown function, always driven to 1
	392	* PiN input -- unknown function, always read as 1
	393	* Make it an input with a pull up for all models.
	394	* GPC9-15 LCD
	395	*/
	396	__raw_writel(0xaaa80618, S3C2410_GPCCON);
	397	__raw_writel(0x0000014c, S3C2410_GPCDAT);
	398	__raw_writel(0x0000fef2, S3C2410_GPCUP);
	399
	400	/* GPD0 input -- unknown function
	401	* GPD1-D7 LCD
	402	* GPD8 N30 output -- unknown function
	403	* N35/PiN output 1=GPS LED on
	404	* GPD9 output 0=power led blinks red, 1=normal power led function
	405	* GPD10 output -- unknown function
	406	* GPD11-15 LCD drivers
	407	*/
	408	__raw_writel(0xaa95aaa4, S3C2410_GPDCON);
	409	__raw_writel(0x00000601, S3C2410_GPDDAT);
410	__raw_writel(0x0000fbfe, S3C2410_GPDUP);
411
412	/* GPE0-4 I2S audio bus
413	* GPE5-10 SD/MMC bus
414	* E11-13 outputs -- unknown function, probably power management
415	* E14-15 I2C bus connected to the battery controller
416	*/
417	__raw_writel(0xa56aaaaa, S3C2410_GPECON);
418	__raw_writel(0x0000efc5, S3C2410_GPEDAT);
419	__raw_writel(0x0000f81f, S3C2410_GPEUP);
420
421	/* GPF0 input 0=power button pressed
422	* GPF1 input SD/MMC switch 0=card present
423	* GPF2 N30 1=reset button pressed (inverted compared to the rest)
424	* N35/PiN 0=reset button pressed
425	* GPF3 N30/PiN input -- unknown function
426	* N35 input GPS antenna position, 0=antenna closed, 1=open
427	* GPF4 input 0=button 4 pressed
428	* GPF5 input 0=button 3 pressed
429	* GPF6 input 0=button 2 pressed
430	* GPF7 input 0=button 1 pressed
431	*/
432	__raw_writel(0x0000aaaa, S3C2410_GPFCON);
433	__raw_writel(0x00000000, S3C2410_GPFDAT);
434	__raw_writel(0x000000ff, S3C2410_GPFUP);
435
436	/* GPG0 input RS232 DCD/DSR/RI
437	* GPG1 input 1=USB gadget port has power from a host
438	* GPG2 N30 input -- unknown function
439	* N35/PiN input 0=headphones plugged in, 1=not plugged in
440	* GPG3 N30 output -- unknown function
441	* N35/PiN input with unknown function
442	* GPG4 N30 output 0=MMC enabled, 1=MMC disabled
443	* GPG5 N30 output 0=BlueTooth chip disabled, 1=enabled
444	* N35/PiN input joystick right
445	* GPG6 N30 output 0=blue led on, 1=off
446	* N35/PiN input joystick left
447	* GPG7 input 0=thumbwheel pressed
448	* GPG8 input 0=thumbwheel down
449	* GPG9 input 0=thumbwheel up
450	* GPG10 input SD/MMC write protect switch
451	* GPG11 N30 input -- unknown function
452	* N35 output 0=GPS antenna powered, 1=not powered
453	* PiN output -- unknown function
454	* GPG12-15 touch screen functions
455	*
456	* The pullups differ between the models, so enable all
457	* pullups that are enabled on any of the models.
458	*/
459	if (machine_is_n30())
460	__raw_writel(0xff0a956a, S3C2410_GPGCON);
461	if (machine_is_n35())
462	__raw_writel(0xff4aa92a, S3C2410_GPGCON);
463	__raw_writel(0x0000e800, S3C2410_GPGDAT);
464	__raw_writel(0x0000f86f, S3C2410_GPGUP);
465
466	/* GPH0/1/2/3 RS232 serial port
467	* GPH4/5 IrDA serial port
468	* GPH6/7 N30 BlueTooth serial port
469	* N35/PiN GPS receiver
470	* GPH8 input -- unknown function
471	* GPH9 CLKOUT0 HCLK -- unknown use
472	* GPH10 CLKOUT1 FCLK -- unknown use
473	*
474	* The pull ups for H6/H7 are enabled on N30 but not on the
475	* N35/PiN. I suppose is useful for a budget model of the N30
476	* with no bluetooh. It doesn't hurt to have the pull ups
477	* enabled on the N35, so leave them enabled for all models.
478	*/
479	__raw_writel(0x0028aaaa, S3C2410_GPHCON);
480	__raw_writel(0x000005ef, S3C2410_GPHDAT);
481	__raw_writel(0x0000063f, S3C2410_GPHUP);
482	}
483
5fe10ab1	484	static void __init n30_map_io(void)
1da177e4 LT	485	{
1da177e4 LT	486	s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
9a2ddb78	487	n30_hwinit();
1da177e4 LT	488	s3c24xx_init_clocks(0);
1da177e4 LT	489	s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
1da177e4 LT	490	}
1da177e4 LT	491
5fe10ab1	492	static void __init n30_init_irq(void)
1da177e4 LT	493	{
	494	s3c24xx_init_irq();
	495	}
	496
027da01d	497	/* GPB3 is the line that controls the pull-up for the USB D+ line */
1da177e4	498
5fe10ab1	499	static void __init n30_init(void)
1da177e4	500	{
e43f2383	501	s3c24xx_fb_set_platdata(&n30_fb_info);
3e1b776c	502	s3c_device_i2c0.dev.platform_data = &n30_i2ccfg;
d088e5fe	503	s3c24xx_udc_set_platdata(&n30_udc_cfg);
1da177e4	504
027da01d BD	505	/* Turn off suspend on both USB ports, and switch the
	506	* selectable USB port to USB device mode. */
	507
	508	s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST \|
	509	S3C2410_MISCCR_USBSUSPND0 \|
	510	S3C2410_MISCCR_USBSUSPND1, 0x0);
57e5171c	511
95790873 CW	512	if (machine_is_n30()) {
	513	/* Turn off suspend on both USB ports, and switch the
	514	* selectable USB port to USB device mode. */
	515	s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST \|
	516	S3C2410_MISCCR_USBSUSPND0 \|
	517	S3C2410_MISCCR_USBSUSPND1, 0x0);
	518
	519	platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
	520	}
	521
	522	if (machine_is_n35()) {
	523	/* Turn off suspend and switch the selectable USB port
	524	* to USB device mode. Turn on suspend for the host
	525	* port since it is not connected on the N35.
	526	*
	527	* Actually, the host port is available at some pads
	528	* on the back of the device, so it would actually be
	529	* possible to add a USB device inside the N35 if you
	530	* are willing to do some hardware modifications. */
	531	s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST \|
	532	S3C2410_MISCCR_USBSUSPND0 \|
	533	S3C2410_MISCCR_USBSUSPND1,
	534	S3C2410_MISCCR_USBSUSPND1);
	535
	536	platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
	537	}
1da177e4 LT	538	}
	539
	540	MACHINE_START(N30, "Acer-N30")
027da01d BD	541	/* Maintainer: Christer Weinigel <christer@weinigel.se>,
	542	Ben Dooks <ben-linux@fluff.org>
	543	*/
e9dea0c6 RK	544	.phys_io = S3C2410_PA_UART,
	545	.io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
	546	.boot_params = S3C2410_SDRAM_PA + 0x100,
1da177e4 LT	547	.timer = &s3c24xx_timer,
	548	.init_machine = n30_init,
	549	.init_irq = n30_init_irq,
	550	.map_io = n30_map_io,
	551	MACHINE_END
95790873 CW	552
	553	MACHINE_START(N35, "Acer-N35")
	554	/* Maintainer: Christer Weinigel <christer@weinigel.se>
	555	*/
	556	.phys_io = S3C2410_PA_UART,
	557	.io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
	558	.boot_params = S3C2410_SDRAM_PA + 0x100,
	559	.timer = &s3c24xx_timer,
	560	.init_machine = n30_init,
	561	.init_irq = n30_init_irq,
	562	.map_io = n30_map_io,
	563	MACHINE_END