mach-utu2440.c

2440驱动stn黑白屏linux 驱动

/* linux/arch/arm/mach-s3c2440/mach-utu2440.c
*/

#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/sysdev.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>

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

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

#include <asm/plat-s3c/regs-serial.h>
#include <asm/arch/regs-gpio.h>
#include <asm/arch/regs-lcd.h>
#include <asm/arch/udc.h>

#include <asm/arch/idle.h>
#include <asm/arch/fb.h>
#include <asm/arch/ts.h>
#include <asm/arch/lcd.h>

#include <asm/arch/map.h> 

#include <asm/plat-s3c24xx/s3c2410.h>
#include <asm/plat-s3c24xx/s3c2440.h>
#include <asm/plat-s3c24xx/clock.h>
#include <asm/plat-s3c24xx/devs.h>
#include <asm/plat-s3c24xx/cpu.h>

#include <asm/plat-s3c/nand.h>

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


static struct map_desc utu2440_iodesc[] __initdata = {
	[0] = {
		.virtual 	= (unsigned long)S3C24XX_VA_DM9000,
		.pfn            = __phys_to_pfn(S3C24XX_PA_DM9000),
		.length         = SZ_1M,
       		.type           = MT_DEVICE,

		},
        [1] = {
                .virtual        = (unsigned long)S3C24XX_VA_IIS,
		.pfn            = __phys_to_pfn(S3C2410_PA_IIS),
                .length         = S3C24XX_SZ_IIS,
                .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 utu2440_uartcfgs[] __initdata = {
        [0] = {
                .hwport      = 0,
                .flags       = 0,
                .ucon        = 0x3c5,
                .ulcon       = 0x03,
                .ufcon       = 0x51,
        },
        [1] = {
                .hwport      = 1,
                .flags       = 0,
                .ucon        = 0x3c5,
                .ulcon       = 0x03,
                .ufcon       = 0x51,
        },
	[2] = {
		.hwport	     = 2,
		.flags	     = 0,
		.ucon	     = 0x3c5,
		.ulcon	     = 0x03,
		.ufcon	     = 0x51,
	}
#ifdef IR_PORT
        /* IR port */
        [2] = {
                .hwport      = 2,
                .flags       = 0,
                .uart_flags  = 0,
                .ucon        = 0x3c5,
                .ulcon       = 0x43,
                .ufcon       = 0x51,
        }
#endif
};	


static void utu2440_udc_pullup(enum s3c2410_udc_cmd_e cmd)
{
        printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);

        switch (cmd)
        {
                case S3C2410_UDC_P_ENABLE :
                        //not realsized
                        break;
                case S3C2410_UDC_P_DISABLE :
                        //not realsized
                        break;
                case S3C2410_UDC_P_RESET :
                        break;
                default:
                        break;
        }
}

static struct s3c2410_udc_mach_info utu2440_udc_cfg __initdata = {
        .udc_command            = utu2440_udc_pullup,
        .vbus_pin             = S3C2410_GPG5,
        .vbus_pin_inverted    = 1,
};

/*  For Sumsang 4.3 Touch screen   */
static struct s3c2410_ts_mach_info utu2440_ts_cfg __initdata = {
                .delay = 10000,
                .presc = 49,
                .oversampling_shift = 2,
};

#if defined(CONFIG_FB_S3C2410_240X320_NEC)
static struct s3c2410fb_display utu2440_lcdcfg __initdata = {
	.lcdcon5=       S3C2410_LCDCON5_FRM565 | \
			S3C2410_LCDCON5_INVVLINE | \
			S3C2410_LCDCON5_INVVFRAME | \
			S3C2410_LCDCON5_PWREN | \
			S3C2410_LCDCON5_HWSWP,

   .type =		S3C2410_LCDCON1_TFT,
   .width =	240,
   .height =	320,
   .pixclock =	120000,
   .xres =		240,
   .yres =		320,
   .bpp =		16,
   .left_margin =	20,//reg3
   .right_margin =	37,//reg3
   .hsync_len =		6,  /* value in pixels (TFT) or HCLKs (STN) */
   .upper_margin =	2,//reg2
   .lower_margin = 	6,//reg2
   .vsync_len =	2,  /* value in lines (TFT) or 0 (STN) */
};

static struct s3c2410fb_mach_info utu2440_fb_info __initdata = {
	.displays = &utu2440_lcdcfg,
 .num_displays = 1,
 .default_display = 0,

 .lpcsel=        0xf82,
 .gpccon=        0xaa955699,
 .gpccon_mask=   0xffc003cc,
 .gpcup=         0x0000ffff,
 .gpcup_mask=    0xffffffff,
 .gpdcon =       0xaa95aaa1,
 .gpdcon_mask =  0xffc0fff0,
 .gpdup =        0x0000faff,
 .gpdup_mask =   0xffffffff,
};
#endif

#if	defined(CONFIG_FB_S3C2410_320X240_SAMSUNG)
static struct s3c2410fb_display utu2440_lcdcfg __initdata = {
	.lcdcon5=       S3C2410_LCDCON5_FRM565 | \
			S3C2410_LCDCON5_INVVLINE | \
			S3C2410_LCDCON5_INVVFRAME | \
			S3C2410_LCDCON5_PWREN | \
			S3C2410_LCDCON5_HWSWP,

   .type =		S3C2410_LCDCON1_TFT,
   .width =	320,
   .height =	240,
   .pixclock =	160000,
   .xres =		320,
   .yres =		240,
   .bpp =		16,
   .left_margin =	16,
   .right_margin =	6,
   .hsync_len =		9,
   .upper_margin =	4,
   .lower_margin = 	6,
   .vsync_len =		16,
};

static struct s3c2410fb_mach_info utu2440_fb_info __initdata = {
	.displays = &utu2440_lcdcfg,
 .num_displays = 1,
 .default_display = 0,

 .lpcsel=        0xf82,
 .gpccon=        0xaa955699,
 .gpccon_mask=   0xffc003cc,
 .gpcup=         0x0000ffff,
 .gpcup_mask=    0xffffffff,
 .gpdcon =       0xaa95aaa1,
 .gpdcon_mask =  0xffc0fff0,
 .gpdup =        0x0000faff,
 .gpdup_mask =   0xffffffff,
};
#endif

#if	defined(CONFIG_FB_S3C2410_480X290)
static struct s3c2410fb_display utu2440_lcdcfg __initdata = {
	.lcdcon5=       S3C2410_LCDCON5_FRM565 | \
			S3C2410_LCDCON5_INVVLINE | \
			S3C2410_LCDCON5_INVVFRAME | \
			S3C2410_LCDCON5_PWREN | \
			S3C2410_LCDCON5_HWSWP,

   .type =		S3C2410_LCDCON1_TFT,
   .width =	480,
   .height =	290,
   .pixclock =	40000,
   .xres =		480,
   .yres =		290,
   .bpp =		16,
   .left_margin =	16,
   .right_margin =	48,
   .hsync_len =		96,
   .upper_margin =	33,
   .lower_margin = 	10,
   .vsync_len =		2,
};

static struct s3c2410fb_mach_info utu2440_fb_info __initdata = {
	.displays = &utu2440_lcdcfg,
 .num_displays = 1,
 .default_display = 0,

 .lpcsel=        0xf82,
 .gpccon=        0xaa955699,
 .gpccon_mask=   0xffc003cc,
 .gpcup=         0x0000ffff,
 .gpcup_mask=    0xffffffff,
 .gpdcon =       0xaa95aaa1,
 .gpdcon_mask =  0xffc0fff0,
 .gpdup =        0x0000faff,
 .gpdup_mask =   0xffffffff,
};
#endif

#if defined(CONFIG_FB_S3C2410_480X272)
/*  For Sumsang 4.3 LCD  */

static struct s3c2410fb_display utu2440_lcdcfg __initdata = {
	.lcdcon5=       S3C2410_LCDCON5_FRM565 | \
			S3C2410_LCDCON5_INVVLINE | \
			S3C2410_LCDCON5_INVVFRAME | \
			S3C2410_LCDCON5_PWREN | \
			S3C2410_LCDCON5_HWSWP,

   .type =		S3C2410_LCDCON1_TFT,
   .width =	480,
   .height =	272,
   .pixclock =	40000, //S3C2410_LCDCON1_CLKVAL+1 * 20000
   .xres =	480,
   .yres =	272,
   .bpp =	16,
   .left_margin =	16,
   .right_margin =	6,
   .hsync_len =		96,
   .upper_margin =	2,
   .lower_margin =	6,
   .vsync_len =		10,
};

static struct s3c2410fb_mach_info utu2440_fb_info __initdata = {
	.displays = &utu2440_lcdcfg,
 .num_displays = 1,
 .default_display = 0,

 .lpcsel=        0xf82,
 .gpccon=        0xaa955699,
 .gpccon_mask=   0xffc003cc,
 .gpcup=         0x0000ffff,
 .gpcup_mask=    0xffffffff,
 .gpdcon =       0xaa95aaa1,
 .gpdcon_mask =  0xffc0fff0,
 .gpdup =        0x0000faff,
 .gpdup_mask =   0xffffffff,
};
#endif

#if	defined(CONFIG_FB_S3C2410_800X480)
static struct s3c2410fb_display utu2440_lcdcfg __initdata = {
	.lcdcon5=       S3C2410_LCDCON5_FRM565 | \
			S3C2410_LCDCON5_INVVLINE | \
			S3C2410_LCDCON5_INVVFRAME | \
			S3C2410_LCDCON5_PWREN | \
			S3C2410_LCDCON5_HWSWP,

   .type =		S3C2410_LCDCON1_TFT,
   .width =	800,
   .height =	480,
   .pixclock =	40000,
   .xres =		800,
   .yres =		480,
   .bpp =		16,
   .left_margin =	16,
   .right_margin =	48,
   .hsync_len =		96,
   .upper_margin =	6,
   .lower_margin = 10,
   .vsync_len =	2,
};

static struct s3c2410fb_mach_info utu2440_fb_info __initdata = {
	.displays = &utu2440_lcdcfg,
 .num_displays = 1,
 .default_display = 0,

 .lpcsel=        0xf82,
 .gpccon=        0xaa955699,
 .gpccon_mask=   0xffc003cc,
 .gpcup=         0x0000ffff,
 .gpcup_mask=    0xffffffff,
 .gpdcon =       0xaa95aaa1,
 .gpdcon_mask =  0xffc0fff0,
 .gpdup =        0x0000faff,
 .gpdup_mask =   0xffffffff,
};
#endif

#if	defined(CONFIG_FB_S3C2410_640X480)
static struct s3c2410fb_display utu2440_lcdcfg __initdata = {
	.lcdcon5=       S3C2410_LCDCON5_FRM565 | \
			S3C2410_LCDCON5_INVVLINE | \
			S3C2410_LCDCON5_INVVFRAME | \
			S3C2410_LCDCON5_PWREN | \
			S3C2410_LCDCON5_HWSWP,

   .type =		S3C2410_LCDCON1_TFT,
   .width =	640,
   .height =	480,
   .pixclock =	40000,
   .xres =		640,
   .yres =		480,
   .bpp =		16,
   .left_margin =	16,
   .right_margin =	48,
   .hsync_len =		96,
   .upper_margin =	33,
   .lower_margin = 10,
   .vsync_len =	2,
};

static struct s3c2410fb_mach_info utu2440_fb_info __initdata = {
	.displays = &utu2440_lcdcfg,
 .num_displays = 1,
 .default_display = 0,

 .lpcsel=        0xf82,
 .gpccon=        0xaa955699,
 .gpccon_mask=   0xffc003cc,
 .gpcup=         0x0000ffff,
 .gpcup_mask=    0xffffffff,
 .gpdcon =       0xaa95aaa1,
 .gpdcon_mask =  0xffc0fff0,
 .gpdup =        0x0000faff,
 .gpdup_mask =   0xffffffff,
};
#endif

/* 以下为2008-12 为 sanso ebook 增加 */
 
#if	defined(CONFIG_FB_S3C2410_SHARP_480X320)
static struct s3c2410fb_display utu2440_lcdcfg __initdata = {
	.lcdcon5= S3C2410_LCDCON5_BSWP | 
			S3C2410_LCDCON5_INVVD | 
			S3C2410_LCDCON5_PWREN,

   .type =		S3C2410_LCDCON1_STN8,
   .width =	480,
   .height =	320,
   .pixclock =	625000,
   .xres =		480,
   .yres =		320,
   .bpp =		4,
   .left_margin =	48,
   .right_margin =	80,
   .hsync_len =	96, 	/* WLH STN VLINE width 1 is 32 vlck */
   .upper_margin =	0,
   .lower_margin = 0,
   .vsync_len =	0,   /* VSPW STN is 0 */
};

static struct s3c2410fb_mach_info utu2440_fb_info __initdata = {
	.displays = &utu2440_lcdcfg,
 .num_displays = 1,
 .default_display = 0,

 .lpcsel=        0xf82,
 .gpccon=        0xaa955699,
 .gpccon_mask=   0xffc003cc,
 .gpcup=         0x0000ffff,
 .gpcup_mask=    0xffffffff,
 .gpdcon =       0xaa95aaa1,
 .gpdcon_mask =  0xffc0fff0,
 .gpdup =        0x0000faff,
 .gpdup_mask =   0xffffffff,
};
#endif

/* ---------------------------------------------------
*  This is used for add your own devices here
----------------------------------------------------*/


/* Nand Flash board  */

static int chip0_map[] = { 0 };
struct mtd_partition bit_default_nand_part[] = {
[0] = {
.name = "bootloader", 
.offset = 0x00000000, 
.size = 0x00060000, 
},
[1] = { 
.name = "kernel", 
.offset = 0x00060000, 
.size = 0x00200000, 
},
[2] = { 
.name = "root", 
.offset = 0x00260000, 
.size = 0x3d9c000,
},
};

/* the bit has 1 selectable slots for nand-flash, the three
 * on-board chip areas, as well as the external SmartMedia
 * slot.
 *
 * Note, there is no current hot-plug support for the SmartMedia
 * socket.
*/

static struct s3c2410_nand_set bit_nand_sets[] = {
        [0] = {
                .name           = "chip0",
                .nr_chips       = 1,
                .nr_map         = chip0_map,
                .nr_partitions  = ARRAY_SIZE(bit_default_nand_part),
                .partitions     = bit_default_nand_part
        },
};


static struct s3c2410_platform_nand bit_nand_info = {
        .tacls          = 0,
        .twrph0         = 30,
        .twrph1         = 0,
        .nr_sets        = ARRAY_SIZE(bit_nand_sets),
        .sets           = bit_nand_sets,
};



/* Register Platform Devices structure  */

static struct platform_device *utu2440_devices[] __initdata = {
        &s3c_device_usb, 
        &s3c_device_lcd, 
        &s3c_device_wdt,
        &s3c_device_i2c,
        &s3c_device_iis,
        &s3c_device_usbgadget,
        &s3c_device_ts,
	&s3c_device_dm9000,
	&s3c_device_nand,
        &s3c_device_sound,
	&s3c_device_buttons,
	&s3c_device_rtc,
 	&s3c_device_sdi, 
};

static struct s3c24xx_board utu2440_board __initdata={
	.devices = utu2440_devices,
 	.devices_count = ARRAY_SIZE(utu2440_devices)
};

static void __init utu2440_map_io(void)
{	//function defined in cpu.c
        s3c24xx_init_io(utu2440_iodesc, ARRAY_SIZE(utu2440_iodesc));
        s3c24xx_init_clocks(12000000);  //CPU clock 12Mhz
        s3c24xx_init_uarts(utu2440_uartcfgs, ARRAY_SIZE(utu2440_uartcfgs));
        s3c24xx_set_board(&utu2440_board);

}

static void __init utu2440_init_irq(void)
{
        s3c24xx_init_irq();
}

static void __init utu2440_init(void)
{
        s3c24xx_fb_set_platdata(&utu2440_fb_info);
        s3c24xx_udc_set_platdata(&utu2440_udc_cfg);
        s3c24xx_ts_set_platdata(&utu2440_ts_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);

        /* This is different from lagency kernel packs */
        platform_add_devices(utu2440_devices, ARRAY_SIZE(utu2440_devices));
	//register devices list in the devices.c file

        s3c2410_gpio_cfgpin(S3C2410_GPF4, S3C2410_GPF4_OUTP);
        s3c2410_gpio_cfgpin(S3C2410_GPF5, S3C2410_GPF5_OUTP);
        s3c2410_gpio_cfgpin(S3C2410_GPF6, S3C2410_GPF6_OUTP);
        s3c2410_gpio_cfgpin(S3C2410_GPF7, S3C2410_GPF7_OUTP);
	
	s3c2410_gpio_setpin(S3C2410_GPF4, 0);
	s3c2410_gpio_setpin(S3C2410_GPF5, 0);
	s3c2410_gpio_setpin(S3C2410_GPF6, 0);
	s3c2410_gpio_setpin(S3C2410_GPF7, 0);
	
	s3c2410_gpio_cfgpin(S3C2410_GPB4, S3C2410_GPB4_OUTP);
	s3c2410_gpio_setpin(S3C2410_GPB4, 1);
	
	s3c_device_nand.dev.platform_data = &bit_nand_info;
}
//machine_desc struct
MACHINE_START(UTU2440, "UTU2440") //the first is defined as MACH_TYPE_UTU2440 and the second
				  //parameter is defined as the machine name as in mach-types
        .phys_io        = S3C2410_PA_UART,
        .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
        .boot_params    = S3C2410_SDRAM_PA + 0x100,
        .map_io         = utu2440_map_io, //used in cpu.c
        .init_irq       = utu2440_init_irq, //used in cpu.c
        .init_machine   = utu2440_init, //used in cpu.c
        .timer          = &s3c24xx_timer,
MACHINE_END