arch/arm/mach-s3c2410/mach-h1940.c - maze/linux - Git at Google

 /* linux/arch/arm/mach-s3c2410/mach-h1940.c
  *
  * Copyright (c) 2003-2005 Simtec Electronics
  *   Ben Dooks <ben@simtec.co.uk>
  *
  * http://www.handhelds.org/projects/h1940.html
  *
  * 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/bootmem.h>
 #include <linux/timer.h>
 #include <linux/init.h>
 #include <linux/sysdev.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
 #include <linux/pwm_backlight.h>
 #include <video/platform_lcd.h>

 #include <linux/mmc/host.h>

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

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

 #include <plat/regs-serial.h>
 #include <mach/regs-lcd.h>
 #include <mach/regs-clock.h>

 #include <mach/regs-gpio.h>
 #include <mach/gpio-fns.h>
 #include <mach/gpio-nrs.h>

 #include <mach/h1940.h>
 #include <mach/h1940-latch.h>
 #include <mach/fb.h>
 #include <plat/udc.h>
 #include <plat/iic.h>

 #include <plat/gpio-cfg.h>
 #include <plat/clock.h>
 #include <plat/devs.h>
 #include <plat/cpu.h>
 #include <plat/pll.h>
 #include <plat/pm.h>
 #include <plat/mci.h>
 #include <plat/ts.h>

 static struct map_desc h1940_iodesc[] __initdata = {
 	[0] = {
 		.virtual	= (unsigned long)H1940_LATCH,
 		.pfn		= __phys_to_pfn(H1940_PA_LATCH),
 		.length		= SZ_16K,
 		.type		= MT_DEVICE
 	},
 };

 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE

 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
 	[0] = {
 		.hwport	     = 0,
 		.flags	     = 0,
 		.ucon	     = 0x3c5,
 		.ulcon	     = 0x03,
 		.ufcon	     = 0x51,
 	},
 	[1] = {
 		.hwport	     = 1,
 		.flags	     = 0,
 		.ucon	     = 0x245,
 		.ulcon	     = 0x03,
 		.ufcon	     = 0x00,
 	},
 	/* IR port */
 	[2] = {
 		.hwport	     = 2,
 		.flags	     = 0,
 		.uart_flags  = UPF_CONS_FLOW,
 		.ucon	     = 0x3c5,
 		.ulcon	     = 0x43,
 		.ufcon	     = 0x51,
 	}
 };

 /* Board control latch control */

 static unsigned int latch_state = H1940_LATCH_DEFAULT;

 void h1940_latch_control(unsigned int clear, unsigned int set)
 {
 	unsigned long flags;

 	local_irq_save(flags);

 	latch_state &= ~clear;
 	latch_state |= set;

 	__raw_writel(latch_state, H1940_LATCH);

 	local_irq_restore(flags);
 }

 EXPORT_SYMBOL_GPL(h1940_latch_control);

 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
 {
 	printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);

 	switch (cmd)
 	{
 		case S3C2410_UDC_P_ENABLE :
 			h1940_latch_control(0, H1940_LATCH_USB_DP);
 			break;
 		case S3C2410_UDC_P_DISABLE :
 			h1940_latch_control(H1940_LATCH_USB_DP, 0);
 			break;
 		case S3C2410_UDC_P_RESET :
 			break;
 		default:
 			break;
 	}
 }

 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 	.udc_command		= h1940_udc_pullup,
 	.vbus_pin		= S3C2410_GPG(5),
 	.vbus_pin_inverted	= 1,
 };

 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 		.delay = 10000,
 		.presc = 49,
 		.oversampling_shift = 2,
 		.cfg_gpio = s3c24xx_ts_cfg_gpio,
 };

 /**
  * Set lcd on or off
  **/
 static struct s3c2410fb_display h1940_lcd __initdata = {
 	.lcdcon5=	S3C2410_LCDCON5_FRM565 | \
 			S3C2410_LCDCON5_INVVLINE | \
 			S3C2410_LCDCON5_HWSWP,

 	.type =		S3C2410_LCDCON1_TFT,
 	.width =	240,
 	.height =	320,
 	.pixclock =	260000,
 	.xres =		240,
 	.yres =		320,
 	.bpp =		16,
 	.left_margin =	8,
 	.right_margin =	20,
 	.hsync_len =	4,
 	.upper_margin =	8,
 	.lower_margin = 7,
 	.vsync_len =	1,
 };

 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 	.displays = &h1940_lcd,
 	.num_displays = 1,
 	.default_display = 0,

 	.lpcsel=	0x02,
 	.gpccon=	0xaa940659,
 	.gpccon_mask=	0xffffffff,
 	.gpcup=		0x0000ffff,
 	.gpcup_mask=	0xffffffff,
 	.gpdcon=	0xaa84aaa0,
 	.gpdcon_mask=	0xffffffff,
 	.gpdup=		0x0000faff,
 	.gpdup_mask=	0xffffffff,
 };

 static struct platform_device h1940_device_leds = {
 	.name             = "h1940-leds",
 	.id               = -1,
 };

 static struct platform_device h1940_device_bluetooth = {
 	.name             = "h1940-bt",
 	.id               = -1,
 };

 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
 	.gpio_detect   = S3C2410_GPF(5),
 	.gpio_wprotect = S3C2410_GPH(8),
 	.set_power     = NULL,
 	.ocr_avail     = MMC_VDD_32_33,
 };

 static int h1940_backlight_init(struct device *dev)
 {
 	gpio_request(S3C2410_GPB(0), "Backlight");

 	gpio_direction_output(S3C2410_GPB(0), 0);
 	s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 	s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);

 	return 0;
 }

 static void h1940_backlight_exit(struct device *dev)
 {
 	gpio_direction_output(S3C2410_GPB(0), 1);
 }

 static struct platform_pwm_backlight_data backlight_data = {
 	.pwm_id         = 0,
 	.max_brightness = 100,
 	.dft_brightness = 50,
 	/* tcnt = 0x31 */
 	.pwm_period_ns  = 36296,
 	.init           = h1940_backlight_init,
 	.exit           = h1940_backlight_exit,
 };

 static struct platform_device h1940_backlight = {
 	.name = "pwm-backlight",
 	.dev  = {
 		.parent = &s3c_device_timer[0].dev,
 		.platform_data = &backlight_data,
 	},
 	.id   = -1,
 };

 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 					unsigned int power)
 {
 	int value;

 	if (!power) {
 		/* set to 3ec */
 		gpio_direction_output(S3C2410_GPC(0), 0);
 		/* wait for 3ac */
 		do {
 			value = gpio_get_value(S3C2410_GPC(6));
 		} while (value);
 		/* set to 38c */
 		gpio_direction_output(S3C2410_GPC(5), 0);
 	} else {
 		/* Set to 3ac */
 		gpio_direction_output(S3C2410_GPC(5), 1);
 		/* Set to 3ad */
 		gpio_direction_output(S3C2410_GPC(0), 1);
 	}
 }

 static struct plat_lcd_data h1940_lcd_power_data = {
 	.set_power      = h1940_lcd_power_set,
 };

 static struct platform_device h1940_lcd_powerdev = {
 	.name                   = "platform-lcd",
 	.dev.parent             = &s3c_device_lcd.dev,
 	.dev.platform_data      = &h1940_lcd_power_data,
 };

 static struct platform_device *h1940_devices[] __initdata = {
 	&s3c_device_ohci,
 	&s3c_device_lcd,
 	&s3c_device_wdt,
 	&s3c_device_i2c0,
 	&s3c_device_iis,
 	&s3c_device_usbgadget,
 	&h1940_device_leds,
 	&h1940_device_bluetooth,
 	&s3c_device_sdi,
 	&s3c_device_rtc,
 	&s3c_device_timer[0],
 	&h1940_backlight,
 	&h1940_lcd_powerdev,
 	&s3c_device_adc,
 	&s3c_device_ts,
 };

 static void __init h1940_map_io(void)
 {
 	s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 	s3c24xx_init_clocks(0);
 	s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));

 	/* setup PM */

 #ifdef CONFIG_PM_H1940
 	memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 #endif
 	s3c_pm_init();
 }

 /* H1940 and RX3715 need to reserve this for suspend */
 static void __init h1940_reserve(void)
 {
 	reserve_bootmem(0x30003000, 0x1000, BOOTMEM_DEFAULT);
 	reserve_bootmem(0x30081000, 0x1000, BOOTMEM_DEFAULT);
 }

 static void __init h1940_init_irq(void)
 {
 	s3c24xx_init_irq();
 }

 static void __init h1940_init(void)
 {
 	u32 tmp;

 	s3c24xx_fb_set_platdata(&h1940_fb_info);
 	s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
  	s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 	s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 	s3c_i2c0_set_platdata(NULL);

 	/* 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);

 	tmp =   (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
 	      | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
 	      | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
 	writel(tmp, S3C2410_UPLLCON);

 	gpio_request(S3C2410_GPC(0), "LCD power");
 	gpio_request(S3C2410_GPC(5), "LCD power");
 	gpio_request(S3C2410_GPC(6), "LCD power");

 	gpio_direction_input(S3C2410_GPC(6));

 	platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 }

 MACHINE_START(H1940, "IPAQ-H1940")
 	/* Maintainer: 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,
 	.map_io		= h1940_map_io,
 	.reserve	= h1940_reserve,
 	.init_irq	= h1940_init_irq,
 	.init_machine	= h1940_init,
 	.timer		= &s3c24xx_timer,
 MACHINE_END
	/* linux/arch/arm/mach-s3c2410/mach-h1940.c
	*
	* Copyright (c) 2003-2005 Simtec Electronics
	* Ben Dooks <ben@simtec.co.uk>
	*
	* http://www.handhelds.org/projects/h1940.html
	*
	* 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/bootmem.h>
	#include <linux/timer.h>
	#include <linux/init.h>
	#include <linux/sysdev.h>
	#include <linux/serial_core.h>
	#include <linux/platform_device.h>
	#include <linux/io.h>
	#include <linux/gpio.h>
	#include <linux/pwm_backlight.h>
	#include <video/platform_lcd.h>

	#include <linux/mmc/host.h>

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

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

	#include <plat/regs-serial.h>
	#include <mach/regs-lcd.h>
	#include <mach/regs-clock.h>

	#include <mach/regs-gpio.h>
	#include <mach/gpio-fns.h>
	#include <mach/gpio-nrs.h>

	#include <mach/h1940.h>
	#include <mach/h1940-latch.h>
	#include <mach/fb.h>
	#include <plat/udc.h>
	#include <plat/iic.h>

	#include <plat/gpio-cfg.h>
	#include <plat/clock.h>
	#include <plat/devs.h>
	#include <plat/cpu.h>
	#include <plat/pll.h>
	#include <plat/pm.h>
	#include <plat/mci.h>
	#include <plat/ts.h>

	static struct map_desc h1940_iodesc[] __initdata = {
	[0] = {
	.virtual = (unsigned long)H1940_LATCH,
	.pfn = __phys_to_pfn(H1940_PA_LATCH),
	.length = SZ_16K,
	.type = MT_DEVICE
	},
	};

	#define UCON S3C2410_UCON_DEFAULT \| S3C2410_UCON_UCLK
	#define ULCON S3C2410_LCON_CS8 \| S3C2410_LCON_PNONE \| S3C2410_LCON_STOPB
	#define UFCON S3C2410_UFCON_RXTRIG8 \| S3C2410_UFCON_FIFOMODE

	static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
	[0] = {
	.hwport = 0,
	.flags = 0,
	.ucon = 0x3c5,
	.ulcon = 0x03,
	.ufcon = 0x51,
	},
	[1] = {
	.hwport = 1,
	.flags = 0,
	.ucon = 0x245,
	.ulcon = 0x03,
	.ufcon = 0x00,
	},
	/* IR port */
	[2] = {
	.hwport = 2,
	.flags = 0,
	.uart_flags = UPF_CONS_FLOW,
	.ucon = 0x3c5,
	.ulcon = 0x43,
	.ufcon = 0x51,
	}
	};

	/* Board control latch control */

	static unsigned int latch_state = H1940_LATCH_DEFAULT;

	void h1940_latch_control(unsigned int clear, unsigned int set)
	{
	unsigned long flags;

	local_irq_save(flags);

	latch_state &= ~clear;
	latch_state \|= set;

	__raw_writel(latch_state, H1940_LATCH);

	local_irq_restore(flags);
	}

	EXPORT_SYMBOL_GPL(h1940_latch_control);

	static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
	{
	printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);

	switch (cmd)
	{
	case S3C2410_UDC_P_ENABLE :
	h1940_latch_control(0, H1940_LATCH_USB_DP);
	break;
	case S3C2410_UDC_P_DISABLE :
	h1940_latch_control(H1940_LATCH_USB_DP, 0);
	break;
	case S3C2410_UDC_P_RESET :
	break;
	default:
	break;
	}
	}

	static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
	.udc_command = h1940_udc_pullup,
	.vbus_pin = S3C2410_GPG(5),
	.vbus_pin_inverted = 1,
	};

	static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
	.delay = 10000,
	.presc = 49,
	.oversampling_shift = 2,
	.cfg_gpio = s3c24xx_ts_cfg_gpio,
	};

	/**
	* Set lcd on or off
	**/
	static struct s3c2410fb_display h1940_lcd __initdata = {
	.lcdcon5= S3C2410_LCDCON5_FRM565 \| \
	S3C2410_LCDCON5_INVVLINE \| \
	S3C2410_LCDCON5_HWSWP,

	.type = S3C2410_LCDCON1_TFT,
	.width = 240,
	.height = 320,
	.pixclock = 260000,
	.xres = 240,
	.yres = 320,
	.bpp = 16,
	.left_margin = 8,
	.right_margin = 20,
	.hsync_len = 4,
	.upper_margin = 8,
	.lower_margin = 7,
	.vsync_len = 1,
	};

	static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
	.displays = &h1940_lcd,
	.num_displays = 1,
	.default_display = 0,

	.lpcsel= 0x02,
	.gpccon= 0xaa940659,
	.gpccon_mask= 0xffffffff,
	.gpcup= 0x0000ffff,
	.gpcup_mask= 0xffffffff,
	.gpdcon= 0xaa84aaa0,
	.gpdcon_mask= 0xffffffff,
	.gpdup= 0x0000faff,
	.gpdup_mask= 0xffffffff,
	};

	static struct platform_device h1940_device_leds = {
	.name = "h1940-leds",
	.id = -1,
	};

	static struct platform_device h1940_device_bluetooth = {
	.name = "h1940-bt",
	.id = -1,
	};

	static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
	.gpio_detect = S3C2410_GPF(5),
	.gpio_wprotect = S3C2410_GPH(8),
	.set_power = NULL,
	.ocr_avail = MMC_VDD_32_33,
	};

	static int h1940_backlight_init(struct device *dev)
	{
	gpio_request(S3C2410_GPB(0), "Backlight");

	gpio_direction_output(S3C2410_GPB(0), 0);
	s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
	s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);

	return 0;
	}

	static void h1940_backlight_exit(struct device *dev)
	{
	gpio_direction_output(S3C2410_GPB(0), 1);
	}

	static struct platform_pwm_backlight_data backlight_data = {
	.pwm_id = 0,
	.max_brightness = 100,
	.dft_brightness = 50,
	/* tcnt = 0x31 */
	.pwm_period_ns = 36296,
	.init = h1940_backlight_init,
	.exit = h1940_backlight_exit,
	};

	static struct platform_device h1940_backlight = {
	.name = "pwm-backlight",
	.dev = {
	.parent = &s3c_device_timer[0].dev,
	.platform_data = &backlight_data,
	},
	.id = -1,
	};

	static void h1940_lcd_power_set(struct plat_lcd_data *pd,
	unsigned int power)
	{
	int value;

	if (!power) {
	/* set to 3ec */
	gpio_direction_output(S3C2410_GPC(0), 0);
	/* wait for 3ac */
	do {
	value = gpio_get_value(S3C2410_GPC(6));
	} while (value);
	/* set to 38c */
	gpio_direction_output(S3C2410_GPC(5), 0);
	} else {
	/* Set to 3ac */
	gpio_direction_output(S3C2410_GPC(5), 1);
	/* Set to 3ad */
	gpio_direction_output(S3C2410_GPC(0), 1);
	}
	}

	static struct plat_lcd_data h1940_lcd_power_data = {
	.set_power = h1940_lcd_power_set,
	};

	static struct platform_device h1940_lcd_powerdev = {
	.name = "platform-lcd",
	.dev.parent = &s3c_device_lcd.dev,
	.dev.platform_data = &h1940_lcd_power_data,
	};

	static struct platform_device *h1940_devices[] __initdata = {
	&s3c_device_ohci,
	&s3c_device_lcd,
	&s3c_device_wdt,
	&s3c_device_i2c0,
	&s3c_device_iis,
	&s3c_device_usbgadget,
	&h1940_device_leds,
	&h1940_device_bluetooth,
	&s3c_device_sdi,
	&s3c_device_rtc,
	&s3c_device_timer[0],
	&h1940_backlight,
	&h1940_lcd_powerdev,
	&s3c_device_adc,
	&s3c_device_ts,
	};

	static void __init h1940_map_io(void)
	{
	s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
	s3c24xx_init_clocks(0);
	s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));

	/* setup PM */

	#ifdef CONFIG_PM_H1940
	memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
	#endif
	s3c_pm_init();
	}

	/* H1940 and RX3715 need to reserve this for suspend */
	static void __init h1940_reserve(void)
	{
	reserve_bootmem(0x30003000, 0x1000, BOOTMEM_DEFAULT);
	reserve_bootmem(0x30081000, 0x1000, BOOTMEM_DEFAULT);
	}

	static void __init h1940_init_irq(void)
	{
	s3c24xx_init_irq();
	}

	static void __init h1940_init(void)
	{
	u32 tmp;

	s3c24xx_fb_set_platdata(&h1940_fb_info);
	s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
	s3c24xx_udc_set_platdata(&h1940_udc_cfg);
	s3c24xx_ts_set_platdata(&h1940_ts_cfg);
	s3c_i2c0_set_platdata(NULL);

	/* 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);

	tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
	\| (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
	\| (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
	writel(tmp, S3C2410_UPLLCON);

	gpio_request(S3C2410_GPC(0), "LCD power");
	gpio_request(S3C2410_GPC(5), "LCD power");
	gpio_request(S3C2410_GPC(6), "LCD power");

	gpio_direction_input(S3C2410_GPC(6));

	platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
	}

	MACHINE_START(H1940, "IPAQ-H1940")
	/* Maintainer: 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,
	.map_io = h1940_map_io,
	.reserve = h1940_reserve,
	.init_irq = h1940_init_irq,
	.init_machine = h1940_init,
	.timer = &s3c24xx_timer,
	MACHINE_END