arch/arm/mach-s3c2410/mach-h1940.c

   1 /* linux/arch/arm/mach-s3c2410/mach-h1940.c
   2  *
   3  * Copyright (c) 2003-2005 Simtec Electronics
   4  *   Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * http://www.handhelds.org/projects/h1940.html
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12 */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/types.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/list.h>
  18 #include <linux/memblock.h>
  19 #include <linux/timer.h>
  20 #include <linux/init.h>
  21 #include <linux/sysdev.h>
  22 #include <linux/serial_core.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/io.h>
  25 #include <linux/gpio.h>
  26 #include <linux/input.h>
  27 #include <linux/gpio_keys.h>
  28 #include <linux/pwm_backlight.h>
  29 #include <linux/i2c.h>
  30 #include <linux/leds.h>
  31
  32 #include <video/platform_lcd.h>
  33
  34 #include <linux/mmc/host.h>
  35
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/map.h>
  38 #include <asm/mach/irq.h>
  39
  40 #include <mach/hardware.h>
  41 #include <asm/irq.h>
  42 #include <asm/mach-types.h>
  43
  44 #include <plat/regs-serial.h>
  45 #include <mach/regs-lcd.h>
  46 #include <mach/regs-clock.h>
  47
  48 #include <mach/regs-gpio.h>
  49 #include <mach/gpio-fns.h>
  50 #include <mach/gpio-nrs.h>
  51
  52 #include <mach/h1940.h>
  53 #include <mach/h1940-latch.h>
  54 #include <mach/fb.h>
  55 #include <plat/udc.h>
  56 #include <plat/iic.h>
  57
  58 #include <plat/gpio-cfg.h>
  59 #include <plat/clock.h>
  60 #include <plat/devs.h>
  61 #include <plat/cpu.h>
  62 #include <plat/pll.h>
  63 #include <plat/pm.h>
  64 #include <plat/mci.h>
  65 #include <plat/ts.h>
  66
  67 #include <sound/uda1380.h>
  68
  69 #define H1940_LATCH             ((void __force __iomem *)0xF8000000)
  70
  71 #define H1940_PA_LATCH          S3C2410_CS2
  72
  73 #define H1940_LATCH_BIT(x)      (1 << ((x) + 16 - S3C_GPIO_END))
  74
  75 static struct map_desc h1940_iodesc[] __initdata = {
  76         [0] = {
  77                 .virtual        = (unsigned long)H1940_LATCH,
  78                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  79                 .length         = SZ_16K,
  80                 .type           = MT_DEVICE
  81         },
  82 };
  83
  84 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  85 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  86 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  87
  88 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  89         [0] = {
  90                 .hwport      = 0,
  91                 .flags       = 0,
  92                 .ucon        = 0x3c5,
  93                 .ulcon       = 0x03,
  94                 .ufcon       = 0x51,
  95         },
  96         [1] = {
  97                 .hwport      = 1,
  98                 .flags       = 0,
  99                 .ucon        = 0x245,
 100                 .ulcon       = 0x03,
 101                 .ufcon       = 0x00,
 102         },
 103         /* IR port */
 104         [2] = {
 105                 .hwport      = 2,
 106                 .flags       = 0,
 107                 .uart_flags  = UPF_CONS_FLOW,
 108                 .ucon        = 0x3c5,
 109                 .ulcon       = 0x43,
 110                 .ufcon       = 0x51,
 111         }
 112 };
 113
 114 /* Board control latch control */
 115
 116 static unsigned int latch_state;
 117
 118 static void h1940_latch_control(unsigned int clear, unsigned int set)
 119 {
 120         unsigned long flags;
 121
 122         local_irq_save(flags);
 123
 124         latch_state &= ~clear;
 125         latch_state |= set;
 126
 127         __raw_writel(latch_state, H1940_LATCH);
 128
 129         local_irq_restore(flags);
 130 }
 131
 132 static inline int h1940_gpiolib_to_latch(int offset)
 133 {
 134         return 1 << (offset + 16);
 135 }
 136
 137 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
 138                                         unsigned offset, int value)
 139 {
 140         int latch_bit = h1940_gpiolib_to_latch(offset);
 141
 142         h1940_latch_control(value ? 0 : latch_bit,
 143                 value ? latch_bit : 0);
 144 }
 145
 146 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
 147                                         unsigned offset, int value)
 148 {
 149         h1940_gpiolib_latch_set(chip, offset, value);
 150         return 0;
 151 }
 152
 153 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
 154                                         unsigned offset)
 155 {
 156         return (latch_state >> (offset + 16)) & 1;
 157 }
 158
 159 struct gpio_chip h1940_latch_gpiochip = {
 160         .base                   = H1940_LATCH_GPIO(0),
 161         .owner                  = THIS_MODULE,
 162         .label                  = "H1940_LATCH",
 163         .ngpio                  = 16,
 164         .direction_output       = h1940_gpiolib_latch_output,
 165         .set                    = h1940_gpiolib_latch_set,
 166         .get                    = h1940_gpiolib_latch_get,
 167 };
 168
 169 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 170         .vbus_pin               = S3C2410_GPG(5),
 171         .vbus_pin_inverted      = 1,
 172         .pullup_pin             = H1940_LATCH_USB_DP,
 173 };
 174
 175 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 176                 .delay = 10000,
 177                 .presc = 49,
 178                 .oversampling_shift = 2,
 179                 .cfg_gpio = s3c24xx_ts_cfg_gpio,
 180 };
 181
 182 /**
 183  * Set lcd on or off
 184  **/
 185 static struct s3c2410fb_display h1940_lcd __initdata = {
 186         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 187                         S3C2410_LCDCON5_INVVLINE | \
 188                         S3C2410_LCDCON5_HWSWP,
 189
 190         .type =         S3C2410_LCDCON1_TFT,
 191         .width =        240,
 192         .height =       320,
 193         .pixclock =     260000,
 194         .xres =         240,
 195         .yres =         320,
 196         .bpp =          16,
 197         .left_margin =  8,
 198         .right_margin = 20,
 199         .hsync_len =    4,
 200         .upper_margin = 8,
 201         .lower_margin = 7,
 202         .vsync_len =    1,
 203 };
 204
 205 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 206         .displays = &h1940_lcd,
 207         .num_displays = 1,
 208         .default_display = 0,
 209
 210         .lpcsel=        0x02,
 211         .gpccon=        0xaa940659,
 212         .gpccon_mask=   0xffffffff,
 213         .gpcup=         0x0000ffff,
 214         .gpcup_mask=    0xffffffff,
 215         .gpdcon=        0xaa84aaa0,
 216         .gpdcon_mask=   0xffffffff,
 217         .gpdup=         0x0000faff,
 218         .gpdup_mask=    0xffffffff,
 219 };
 220
 221 DEFINE_SPINLOCK(h1940_blink_spin);
 222
 223 int h1940_led_blink_set(unsigned gpio, int state,
 224         unsigned long *delay_on, unsigned long *delay_off)
 225 {
 226         int blink_gpio, check_gpio1, check_gpio2;
 227
 228         switch (gpio) {
 229         case H1940_LATCH_LED_GREEN:
 230                 blink_gpio = S3C2410_GPA(7);
 231                 check_gpio1 = S3C2410_GPA(1);
 232                 check_gpio2 = S3C2410_GPA(3);
 233                 break;
 234         case H1940_LATCH_LED_RED:
 235                 blink_gpio = S3C2410_GPA(1);
 236                 check_gpio1 = S3C2410_GPA(7);
 237                 check_gpio2 = S3C2410_GPA(3);
 238                 break;
 239         default:
 240                 blink_gpio = S3C2410_GPA(3);
 241                 check_gpio1 = S3C2410_GPA(1);
 242                 check_gpio1 = S3C2410_GPA(7);
 243                 break;
 244         }
 245
 246         if (delay_on && delay_off && !*delay_on && !*delay_off)
 247                 *delay_on = *delay_off = 500;
 248
 249         spin_lock(&h1940_blink_spin);
 250
 251         switch (state) {
 252         case GPIO_LED_NO_BLINK_LOW:
 253         case GPIO_LED_NO_BLINK_HIGH:
 254                 if (!gpio_get_value(check_gpio1) &&
 255                     !gpio_get_value(check_gpio2))
 256                         gpio_set_value(H1940_LATCH_LED_FLASH, 0);
 257                 gpio_set_value(blink_gpio, 0);
 258                 if (gpio_is_valid(gpio))
 259                         gpio_set_value(gpio, state);
 260                 break;
 261         case GPIO_LED_BLINK:
 262                 if (gpio_is_valid(gpio))
 263                         gpio_set_value(gpio, 0);
 264                 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
 265                 gpio_set_value(blink_gpio, 1);
 266                 break;
 267         }
 268
 269         spin_unlock(&h1940_blink_spin);
 270
 271         return 0;
 272 }
 273 EXPORT_SYMBOL(h1940_led_blink_set);
 274
 275 static struct gpio_led h1940_leds_desc[] = {
 276         {
 277                 .name                   = "Green",
 278                 .default_trigger        = "main-battery-charging-or-full",
 279                 .gpio                   = H1940_LATCH_LED_GREEN,
 280                 .retain_state_suspended = 1,
 281         },
 282         {
 283                 .name                   = "Red",
 284                 .default_trigger        = "main-battery-full",
 285                 .gpio                   = H1940_LATCH_LED_RED,
 286                 .retain_state_suspended = 1,
 287         },
 288 };
 289
 290 static struct gpio_led_platform_data h1940_leds_pdata = {
 291         .num_leds       = ARRAY_SIZE(h1940_leds_desc),
 292         .leds           = h1940_leds_desc,
 293         .gpio_blink_set = h1940_led_blink_set,
 294 };
 295
 296 static struct platform_device h1940_device_leds = {
 297         .name   = "leds-gpio",
 298         .id     = -1,
 299         .dev    = {
 300                         .platform_data = &h1940_leds_pdata,
 301         },
 302 };
 303
 304 static struct platform_device h1940_device_bluetooth = {
 305         .name             = "h1940-bt",
 306         .id               = -1,
 307 };
 308
 309 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 310 {
 311         switch (power_mode) {
 312         case MMC_POWER_OFF:
 313                 gpio_set_value(H1940_LATCH_SD_POWER, 0);
 314                 break;
 315         case MMC_POWER_UP:
 316         case MMC_POWER_ON:
 317                 gpio_set_value(H1940_LATCH_SD_POWER, 1);
 318                 break;
 319         default:
 320                 break;
 321         };
 322 }
 323
 324 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
 325         .gpio_detect   = S3C2410_GPF(5),
 326         .gpio_wprotect = S3C2410_GPH(8),
 327         .set_power     = h1940_set_mmc_power,
 328         .ocr_avail     = MMC_VDD_32_33,
 329 };
 330
 331 static int h1940_backlight_init(struct device *dev)
 332 {
 333         gpio_request(S3C2410_GPB(0), "Backlight");
 334
 335         gpio_direction_output(S3C2410_GPB(0), 0);
 336         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 337         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 338         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 339
 340         return 0;
 341 }
 342
 343 static int h1940_backlight_notify(struct device *dev, int brightness)
 344 {
 345         if (!brightness) {
 346                 gpio_direction_output(S3C2410_GPB(0), 1);
 347                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 348         } else {
 349                 gpio_direction_output(S3C2410_GPB(0), 0);
 350                 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 351                 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 352                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 353         }
 354         return brightness;
 355 }
 356
 357 static void h1940_backlight_exit(struct device *dev)
 358 {
 359         gpio_direction_output(S3C2410_GPB(0), 1);
 360         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 361 }
 362
 363
 364 static struct platform_pwm_backlight_data backlight_data = {
 365         .pwm_id         = 0,
 366         .max_brightness = 100,
 367         .dft_brightness = 50,
 368         /* tcnt = 0x31 */
 369         .pwm_period_ns  = 36296,
 370         .init           = h1940_backlight_init,
 371         .notify         = h1940_backlight_notify,
 372         .exit           = h1940_backlight_exit,
 373 };
 374
 375 static struct platform_device h1940_backlight = {
 376         .name = "pwm-backlight",
 377         .dev  = {
 378                 .parent = &s3c_device_timer[0].dev,
 379                 .platform_data = &backlight_data,
 380         },
 381         .id   = -1,
 382 };
 383
 384 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 385                                         unsigned int power)
 386 {
 387         int value;
 388
 389         if (!power) {
 390                 gpio_set_value(S3C2410_GPC(0), 0);
 391                 /* wait for 3ac */
 392                 do {
 393                         value = gpio_get_value(S3C2410_GPC(6));
 394                 } while (value);
 395
 396                 gpio_set_value(H1940_LATCH_LCD_P2, 0);
 397                 gpio_set_value(H1940_LATCH_LCD_P3, 0);
 398                 gpio_set_value(H1940_LATCH_LCD_P4, 0);
 399
 400                 gpio_direction_output(S3C2410_GPC(1), 0);
 401                 gpio_direction_output(S3C2410_GPC(4), 0);
 402
 403                 gpio_set_value(H1940_LATCH_LCD_P1, 0);
 404                 gpio_set_value(H1940_LATCH_LCD_P0, 0);
 405
 406                 gpio_set_value(S3C2410_GPC(5), 0);
 407
 408         } else {
 409                 gpio_set_value(H1940_LATCH_LCD_P0, 1);
 410                 gpio_set_value(H1940_LATCH_LCD_P1, 1);
 411
 412                 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 413                 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
 414
 415                 gpio_set_value(S3C2410_GPC(5), 1);
 416                 gpio_set_value(S3C2410_GPC(0), 1);
 417
 418                 gpio_set_value(H1940_LATCH_LCD_P3, 1);
 419                 gpio_set_value(H1940_LATCH_LCD_P2, 1);
 420                 gpio_set_value(H1940_LATCH_LCD_P4, 1);
 421         }
 422 }
 423
 424 static struct plat_lcd_data h1940_lcd_power_data = {
 425         .set_power      = h1940_lcd_power_set,
 426 };
 427
 428 static struct platform_device h1940_lcd_powerdev = {
 429         .name                   = "platform-lcd",
 430         .dev.parent             = &s3c_device_lcd.dev,
 431         .dev.platform_data      = &h1940_lcd_power_data,
 432 };
 433
 434 static struct uda1380_platform_data uda1380_info = {
 435         .gpio_power     = H1940_LATCH_UDA_POWER,
 436         .gpio_reset     = S3C2410_GPA(12),
 437         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 438 };
 439
 440 static struct i2c_board_info h1940_i2c_devices[] = {
 441         {
 442                 I2C_BOARD_INFO("uda1380", 0x1a),
 443                 .platform_data = &uda1380_info,
 444         },
 445 };
 446
 447 #define DECLARE_BUTTON(p, k, n, w)      \
 448         {                               \
 449                 .gpio           = p,    \
 450                 .code           = k,    \
 451                 .desc           = n,    \
 452                 .wakeup         = w,    \
 453                 .active_low     = 1,    \
 454         }
 455
 456 static struct gpio_keys_button h1940_buttons[] = {
 457         DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 458         DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 459         DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 460         DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 461         DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 462         DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 463         DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 464         DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 465         DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 466         DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 467         DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 468 };
 469
 470 static struct gpio_keys_platform_data h1940_buttons_data = {
 471         .buttons        = h1940_buttons,
 472         .nbuttons       = ARRAY_SIZE(h1940_buttons),
 473 };
 474
 475 static struct platform_device h1940_dev_buttons = {
 476         .name           = "gpio-keys",
 477         .id             = -1,
 478         .dev            = {
 479                 .platform_data  = &h1940_buttons_data,
 480         }
 481 };
 482
 483 static struct platform_device *h1940_devices[] __initdata = {
 484         &h1940_dev_buttons,
 485         &s3c_device_ohci,
 486         &s3c_device_lcd,
 487         &s3c_device_wdt,
 488         &s3c_device_i2c0,
 489         &s3c_device_iis,
 490         &samsung_asoc_dma,
 491         &s3c_device_usbgadget,
 492         &h1940_device_leds,
 493         &h1940_device_bluetooth,
 494         &s3c_device_sdi,
 495         &s3c_device_rtc,
 496         &s3c_device_timer[0],
 497         &h1940_backlight,
 498         &h1940_lcd_powerdev,
 499         &s3c_device_adc,
 500         &s3c_device_ts,
 501 };
 502
 503 static void __init h1940_map_io(void)
 504 {
 505         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 506         s3c24xx_init_clocks(0);
 507         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 508
 509         /* setup PM */
 510
 511 #ifdef CONFIG_PM_H1940
 512         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 513 #endif
 514         s3c_pm_init();
 515
 516         /* Add latch gpio chip, set latch initial value */
 517         h1940_latch_control(0, 0);
 518         WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
 519 }
 520
 521 /* H1940 and RX3715 need to reserve this for suspend */
 522 static void __init h1940_reserve(void)
 523 {
 524         memblock_reserve(0x30003000, 0x1000);
 525         memblock_reserve(0x30081000, 0x1000);
 526 }
 527
 528 static void __init h1940_init_irq(void)
 529 {
 530         s3c24xx_init_irq();
 531 }
 532
 533 static void __init h1940_init(void)
 534 {
 535         u32 tmp;
 536
 537         s3c24xx_fb_set_platdata(&h1940_fb_info);
 538         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 539         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 540         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 541         s3c_i2c0_set_platdata(NULL);
 542
 543         /* Turn off suspend on both USB ports, and switch the
 544          * selectable USB port to USB device mode. */
 545
 546         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 547                               S3C2410_MISCCR_USBSUSPND0 |
 548                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 549
 550         tmp =   (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
 551               | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
 552               | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
 553         writel(tmp, S3C2410_UPLLCON);
 554
 555         gpio_request(S3C2410_GPC(0), "LCD power");
 556         gpio_request(S3C2410_GPC(1), "LCD power");
 557         gpio_request(S3C2410_GPC(4), "LCD power");
 558         gpio_request(S3C2410_GPC(5), "LCD power");
 559         gpio_request(S3C2410_GPC(6), "LCD power");
 560         gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 561         gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 562         gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 563         gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 564         gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 565         gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 566         gpio_direction_output(S3C2410_GPC(0), 0);
 567         gpio_direction_output(S3C2410_GPC(1), 0);
 568         gpio_direction_output(S3C2410_GPC(4), 0);
 569         gpio_direction_output(S3C2410_GPC(5), 0);
 570         gpio_direction_input(S3C2410_GPC(6));
 571         gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 572         gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 573         gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 574         gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 575         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 576         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 577
 578         gpio_request(H1940_LATCH_SD_POWER, "SD power");
 579         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 580
 581         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 582
 583         gpio_request(S3C2410_GPA(1), "Red LED blink");
 584         gpio_request(S3C2410_GPA(3), "Blue LED blink");
 585         gpio_request(S3C2410_GPA(7), "Green LED blink");
 586         gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 587         gpio_direction_output(S3C2410_GPA(1), 0);
 588         gpio_direction_output(S3C2410_GPA(3), 0);
 589         gpio_direction_output(S3C2410_GPA(7), 0);
 590         gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
 591
 592         i2c_register_board_info(0, h1940_i2c_devices,
 593                 ARRAY_SIZE(h1940_i2c_devices));
 594 }
 595
 596 MACHINE_START(H1940, "IPAQ-H1940")
 597         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 598         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 599         .map_io         = h1940_map_io,
 600         .reserve        = h1940_reserve,
 601         .init_irq       = h1940_init_irq,
 602         .init_machine   = h1940_init,
 603         .timer          = &s3c24xx_timer,
 604 MACHINE_END