Commit c394f177 authored by Vasily Khoruzhick's avatar Vasily Khoruzhick Committed by Ben Dooks
Browse files

ARM: S3C2440: Add HP iPAQ RX1950 machine support 



Signed-off-by: default avatarVasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: default avatarDenis Grigoriev <dgreenday@gmail.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 7ebd4675

arch/arm/mach-s3c2440/Kconfig

+13 −0
Original line number Diff line number Diff line
@@ -187,4 +187,17 @@ config MACH_MINI2440 
	  Say Y here to select support for the MINI2440. Is a 10cm x 10cm board

	  available via various sources. It can come with a 3.5" or 7" touch LCD.



config MACH_RX1950

	bool "HP iPAQ rx1950"

	select CPU_S3C2442

	select S3C24XX_DCLK

	select PM_H1940 if PM

	select I2C

	select S3C2410_PWM

	select S3C_DEV_NAND

	select S3C2410_IOTIMING if S3C2440_CPUFREQ

	select S3C2440_XTAL_16934400

	help

	   Say Y here if you're using HP iPAQ rx1950



endmenu

arch/arm/mach-s3c2440/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ obj-$(CONFIG_MACH_NEXCODER_2440) += mach-nexcoder.o 
obj-$(CONFIG_MACH_AT2440EVB) += mach-at2440evb.o

obj-$(CONFIG_MACH_MINI2440) += mach-mini2440.o

obj-$(CONFIG_MACH_NEO1973_GTA02) += mach-gta02.o

obj-$(CONFIG_MACH_RX1950) += mach-rx1950.o



# extra machine support

arch/arm/mach-s3c2440/mach-rx1950.c

0 → 100644
+582 −0
Original line number Diff line number Diff line 
/* linux/arch/arm/mach-s3c2440/mach-rx1950.c

 *

 * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,

 * Copyright (c) 2007-2010 Vasily Khoruzhick

 *

 * based on smdk2440 written by Ben Dooks

 *

 * 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/delay.h>

#include <linux/timer.h>

#include <linux/init.h>

#include <linux/gpio.h>

#include <linux/platform_device.h>

#include <linux/serial_core.h>

#include <linux/input.h>

#include <linux/gpio_keys.h>

#include <linux/sysdev.h>

#include <linux/pwm_backlight.h>

#include <linux/pwm.h>



#include <linux/mtd/mtd.h>

#include <linux/mtd/partitions.h>



#include <linux/mmc/host.h>



#include <asm/mach/arch.h>

#include <asm/mach/map.h>

#include <asm/mach-types.h>



#include <mach/regs-gpio.h>

#include <mach/regs-gpioj.h>

#include <mach/h1940.h>

#include <mach/fb.h>



#include <plat/clock.h>

#include <plat/regs-serial.h>

#include <plat/regs-iic.h>

#include <plat/mci.h>

#include <plat/udc.h>

#include <plat/nand.h>

#include <plat/iic.h>

#include <plat/devs.h>

#include <plat/cpu.h>

#include <plat/pm.h>

#include <plat/irq.h>

#include <plat/ts.h>



#define LCD_PWM_PERIOD 192960

#define LCD_PWM_DUTY 127353



static struct map_desc rx1950_iodesc[] __initdata = {

};



static struct s3c24xx_uart_clksrc rx1950_serial_clocks[] = {

	[0] = {

	       .name = "fclk",

	       .divisor = 0x0a,

	       .min_baud = 0,

	       .max_baud = 0,

	},

};



static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {

	[0] = {

	       .hwport = 0,

	       .flags = 0,

	       .ucon = 0x3c5,

	       .ulcon = 0x03,

	       .ufcon = 0x51,

	       .clocks = rx1950_serial_clocks,

	       .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),

	},

	[1] = {

	       .hwport = 1,

	       .flags = 0,

	       .ucon = 0x3c5,

	       .ulcon = 0x03,

	       .ufcon = 0x51,

	       .clocks = rx1950_serial_clocks,

	       .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),

	},

	/* IR port */

	[2] = {

	       .hwport = 2,

	       .flags = 0,

	       .ucon = 0x3c5,

	       .ulcon = 0x43,

	       .ufcon = 0xf1,

	       .clocks = rx1950_serial_clocks,

	       .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),

	},

};



static struct s3c2410fb_display rx1950_display = {

	.type = S3C2410_LCDCON1_TFT,

	.width = 240,

	.height = 320,

	.xres = 240,

	.yres = 320,

	.bpp = 16,



	.pixclock = 260000,

	.left_margin = 10,

	.right_margin = 20,

	.hsync_len = 10,

	.upper_margin = 2,

	.lower_margin = 2,

	.vsync_len = 2,



	.lcdcon5 = S3C2410_LCDCON5_FRM565 |

			   S3C2410_LCDCON5_INVVCLK |

			   S3C2410_LCDCON5_INVVLINE |

			   S3C2410_LCDCON5_INVVFRAME |

			   S3C2410_LCDCON5_HWSWP |

			   (0x02 << 13) |

			   (0x02 << 15),



};



static struct s3c2410fb_mach_info rx1950_lcd_cfg = {

	.displays = &rx1950_display,

	.num_displays = 1,

	.default_display = 0,



	.lpcsel = 0x02,

	.gpccon = 0xaa9556a9,

	.gpccon_mask = 0xffc003fc,

	.gpcup = 0x0000ffff,

	.gpcup_mask = 0xffffffff,



	.gpdcon = 0xaa90aaa1,

	.gpdcon_mask = 0xffc0fff0,

	.gpdup = 0x0000fcfd,

	.gpdup_mask = 0xffffffff,



};



static struct pwm_device *lcd_pwm;



void rx1950_lcd_power(int enable)

{

	int i;

	static int enabled;

	if (enabled == enable)

		return;

	if (!enable) {



		/* GPC11-GPC15->OUTPUT */

		for (i = 11; i < 16; i++)

			gpio_direction_output(S3C2410_GPC(i), 1);



		/* Wait a bit here... */

		mdelay(100);



		/* GPD2-GPD7->OUTPUT */

		/* GPD11-GPD15->OUTPUT */

		/* GPD2-GPD7->1, GPD11-GPD15->1 */

		for (i = 2; i < 8; i++)

			gpio_direction_output(S3C2410_GPD(i), 1);

		for (i = 11; i < 16; i++)

			gpio_direction_output(S3C2410_GPD(i), 1);



		/* Wait a bit here...*/

		mdelay(100);



		/* GPB0->OUTPUT, GPB0->0 */

		gpio_direction_output(S3C2410_GPB(0), 0);



		/* GPC1-GPC4->OUTPUT, GPC1-4->0 */

		for (i = 1; i < 5; i++)

			gpio_direction_output(S3C2410_GPC(i), 0);



		/* GPC15-GPC11->0 */

		for (i = 11; i < 16; i++)

			gpio_direction_output(S3C2410_GPC(i), 0);



		/* GPD15-GPD11->0, GPD2->GPD7->0 */

		for (i = 11; i < 16; i++)

			gpio_direction_output(S3C2410_GPD(i), 0);



		for (i = 2; i < 8; i++)

			gpio_direction_output(S3C2410_GPD(i), 0);



		/* GPC6->0, GPC7->0, GPC5->0 */

		gpio_direction_output(S3C2410_GPC(6), 0);

		gpio_direction_output(S3C2410_GPC(7), 0);

		gpio_direction_output(S3C2410_GPC(5), 0);



		/* GPB1->OUTPUT, GPB1->0 */

		gpio_direction_output(S3C2410_GPB(1), 0);

		pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);

		pwm_disable(lcd_pwm);



		/* GPC0->0, GPC10->0 */

		gpio_direction_output(S3C2410_GPC(0), 0);

		gpio_direction_output(S3C2410_GPC(10), 0);

	} else {

		pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);

		pwm_enable(lcd_pwm);



		gpio_direction_output(S3C2410_GPC(0), 1);

		gpio_direction_output(S3C2410_GPC(5), 1);



		s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);

		gpio_direction_output(S3C2410_GPC(7), 1);



		for (i = 1; i < 5; i++)

			s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));



		for (i = 11; i < 16; i++)

			s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));



		for (i = 2; i < 8; i++)

			s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));



		for (i = 11; i < 16; i++)

			s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));



		gpio_direction_output(S3C2410_GPC(10), 1);

		gpio_direction_output(S3C2410_GPC(6), 1);

	}

	enabled = enable;

}



static void rx1950_bl_power(int enable)

{

	static int enabled;

	if (enabled == enable)

		return;

	if (!enable) {

			gpio_direction_output(S3C2410_GPB(0), 0);

	} else {

			/* LED driver need a "push" to power on */

			gpio_direction_output(S3C2410_GPB(0), 1);

			/* Warm up backlight for one period of PWM.

			 * Without this trick its almost impossible to

			 * enable backlight with low brightness value

			 */

			ndelay(48000);

			s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);

	}

	enabled = enable;

}



static int rx1950_backlight_init(struct device *dev)

{

	WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));

	lcd_pwm = pwm_request(1, "RX1950 LCD");

	if (IS_ERR(lcd_pwm)) {

		dev_err(dev, "Unable to request PWM for LCD power!\n");

		return PTR_ERR(lcd_pwm);

	}



	rx1950_lcd_power(1);

	rx1950_bl_power(1);



	return 0;

}



static void rx1950_backlight_exit(struct device *dev)

{

	rx1950_bl_power(0);

	rx1950_lcd_power(0);



	pwm_free(lcd_pwm);

	gpio_free(S3C2410_GPB(0));

}





static int rx1950_backlight_notify(struct device *dev, int brightness)

{

	if (!brightness) {

		rx1950_bl_power(0);

		rx1950_lcd_power(0);

	} else {

		rx1950_lcd_power(1);

		rx1950_bl_power(1);

	}

	return brightness;

}



static struct platform_pwm_backlight_data rx1950_backlight_data = {

	.pwm_id = 0,

	.max_brightness = 24,

	.dft_brightness = 4,

	.pwm_period_ns = 48000,

	.init = rx1950_backlight_init,

	.notify = rx1950_backlight_notify,

	.exit = rx1950_backlight_exit,

};



static struct platform_device rx1950_backlight = {

	.name = "pwm-backlight",

	.dev = {

		.parent = &s3c_device_timer[0].dev,

		.platform_data = &rx1950_backlight_data,

	},

};



static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)

{

	switch (power_mode) {

	case MMC_POWER_OFF:

		gpio_direction_output(S3C2410_GPJ(1), 0);

		break;

	case MMC_POWER_UP:

	case MMC_POWER_ON:

		gpio_direction_output(S3C2410_GPJ(1), 1);

		break;

	default:

		break;

	}

}



static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {

	.gpio_detect = S3C2410_GPF(5),

	.gpio_wprotect = S3C2410_GPH(8),

	.set_power = rx1950_set_mmc_power,

	.ocr_avail = MMC_VDD_32_33,

};



static struct mtd_partition rx1950_nand_part[] = {

	[0] = {

			.name = "Boot0",

			.offset = 0,

			.size = 0x4000,

			.mask_flags = MTD_WRITEABLE,

	},

	[1] = {

			.name = "Boot1",

			.offset = MTDPART_OFS_APPEND,

			.size = 0x40000,

			.mask_flags = MTD_WRITEABLE,

	},

	[2] = {

			.name = "Kernel",

			.offset = MTDPART_OFS_APPEND,

			.size = 0x300000,

			.mask_flags = 0,

	},

	[3] = {

			.name = "Filesystem",

			.offset = MTDPART_OFS_APPEND,

			.size = MTDPART_SIZ_FULL,

			.mask_flags = 0,

	},

};



static struct s3c2410_nand_set rx1950_nand_sets[] = {

	[0] = {

			.name = "Internal",

			.nr_chips = 1,

			.nr_partitions = ARRAY_SIZE(rx1950_nand_part),

			.partitions = rx1950_nand_part,

	},

};



static struct s3c2410_platform_nand rx1950_nand_info = {

	.tacls = 25,

	.twrph0 = 50,

	.twrph1 = 15,

	.nr_sets = ARRAY_SIZE(rx1950_nand_sets),

	.sets = rx1950_nand_sets,

};



static void rx1950_udc_pullup(enum s3c2410_udc_cmd_e cmd)

{

	switch (cmd) {

	case S3C2410_UDC_P_ENABLE:

		gpio_direction_output(S3C2410_GPJ(5), 1);

		break;

	case S3C2410_UDC_P_DISABLE:

		gpio_direction_output(S3C2410_GPJ(5), 0);

		break;

	case S3C2410_UDC_P_RESET:

		break;

	default:

		break;

	}

}



static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {

	.udc_command = rx1950_udc_pullup,

	.vbus_pin = S3C2410_GPG(5),

	.vbus_pin_inverted = 1,

};



static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {

	.delay = 10000,

	.presc = 49,

	.oversampling_shift = 3,

};



static struct gpio_keys_button rx1950_gpio_keys_table[] = {

	{

		.code		= KEY_POWER,

		.gpio		= S3C2410_GPF(0),

		.active_low	= 1,

		.desc		= "Power button",

		.wakeup		= 1,

	},

	{

		.code		= KEY_F5,

		.gpio		= S3C2410_GPF(7),

		.active_low	= 1,

		.desc		= "Record button",

	},

	{

		.code		= KEY_F1,

		.gpio		= S3C2410_GPG(0),

		.active_low	= 1,

		.desc		= "Calendar button",

	},

	{

		.code		= KEY_F2,

		.gpio		= S3C2410_GPG(2),

		.active_low	= 1,

		.desc		= "Contacts button",

	},

	{

		.code		= KEY_F3,

		.gpio		= S3C2410_GPG(3),

		.active_low	= 1,

		.desc		= "Mail button",

	},

	{

		.code		= KEY_F4,

		.gpio		= S3C2410_GPG(7),

		.active_low	= 1,

		.desc		= "WLAN button",

	},

	{

		.code		= KEY_LEFT,

		.gpio		= S3C2410_GPG(10),

		.active_low	= 1,

		.desc		= "Left button",

	},

	{

		.code		= KEY_RIGHT,

		.gpio		= S3C2410_GPG(11),

		.active_low	= 1,

		.desc		= "Right button",

	},

	{

		.code		= KEY_UP,

		.gpio		= S3C2410_GPG(4),

		.active_low	= 1,

		.desc		= "Up button",

	},

	{

		.code		= KEY_DOWN,

		.gpio		= S3C2410_GPG(6),

		.active_low	= 1,

		.desc		= "Down button",

	},

	{

		.code		= KEY_ENTER,

		.gpio		= S3C2410_GPG(9),

		.active_low	= 1,

		.desc		= "Ok button"

	},

};



static struct gpio_keys_platform_data rx1950_gpio_keys_data = {

	.buttons = rx1950_gpio_keys_table,

	.nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),

};



static struct platform_device rx1950_device_gpiokeys = {

	.name = "gpio-keys",

	.dev.platform_data = &rx1950_gpio_keys_data,

};



static struct s3c2410_platform_i2c rx1950_i2c_data = {

	.flags = 0,

	.slave_addr = 0x42,

	.frequency = 400 * 1000,

	.sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,

};



static struct platform_device *rx1950_devices[] __initdata = {

	&s3c_device_lcd,

	&s3c_device_wdt,

	&s3c_device_i2c0,

	&s3c_device_iis,

	&s3c_device_usbgadget,

	&s3c_device_rtc,

	&s3c_device_nand,

	&s3c_device_sdi,

	&s3c_device_adc,

	&s3c_device_ts,

	&s3c_device_timer[0],

	&s3c_device_timer[1],

	&rx1950_backlight,

	&rx1950_device_gpiokeys,

};



static struct clk *rx1950_clocks[] __initdata = {

	&s3c24xx_clkout0,

	&s3c24xx_clkout1,

};



static void __init rx1950_map_io(void)

{

	s3c24xx_clkout0.parent  = &clk_h;

	s3c24xx_clkout1.parent  = &clk_f;



	s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));



	s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));

	s3c24xx_init_clocks(16934000);

	s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));



	/* setup PM */



#ifdef CONFIG_PM_H1940

	memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);

#endif



	s3c_pm_init();

}



static void __init rx1950_init_machine(void)

{

	int i;



	s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);

	s3c24xx_udc_set_platdata(&rx1950_udc_cfg);

	s3c24xx_ts_set_platdata(&rx1950_ts_cfg);

	s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);

	s3c_i2c0_set_platdata(&rx1950_i2c_data);

	s3c_nand_set_platdata(&rx1950_nand_info);



	/* 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);



	WARN_ON(gpio_request(S3C2410_GPJ(5), "UDC pullup"));

	gpio_direction_output(S3C2410_GPJ(5), 0);



	/* mmc power is disabled by default */

	WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));

	gpio_direction_output(S3C2410_GPJ(1), 0);



	for (i = 0; i < 8; i++)

		WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));



	for (i = 10; i < 16; i++)

		WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));



	for (i = 2; i < 8; i++)

		WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));



	for (i = 11; i < 16; i++)

		WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));



	WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));



	platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));

}



MACHINE_START(RX1950, "HP iPAQ RX1950")

    /* Maintainers: Vasily Khoruzhick */

    .phys_io = S3C2410_PA_UART,

	.io_pg_offst = (((u32) S3C24XX_VA_UART) >> 18) & 0xfffc,

	.boot_params = S3C2410_SDRAM_PA + 0x100,

	.map_io = rx1950_map_io,

	.init_irq = s3c24xx_init_irq,

	.init_machine = rx1950_init_machine,

	.timer = &s3c24xx_timer,

MACHINE_END