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 #include <linux/pda_power.h>
  32 #include <linux/s3c_adc_battery.h>
  33 #include <linux/delay.h>
  34
  35 #include <video/platform_lcd.h>
  36
  37 #include <linux/mmc/host.h>
  38
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/irq.h>
  42
  43 #include <mach/hardware.h>
  44 #include <asm/irq.h>
  45 #include <asm/mach-types.h>
  46
  47 #include <plat/regs-serial.h>
  48 #include <mach/regs-lcd.h>
  49 #include <mach/regs-clock.h>
  50
  51 #include <mach/regs-gpio.h>
  52 #include <mach/gpio-fns.h>
  53 #include <mach/gpio-nrs.h>
  54
  55 #include <mach/h1940.h>
  56 #include <mach/h1940-latch.h>
  57 #include <mach/fb.h>
  58 #include <plat/udc.h>
  59 #include <plat/iic.h>
  60
  61 #include <plat/gpio-cfg.h>
  62 #include <plat/clock.h>
  63 #include <plat/devs.h>
  64 #include <plat/cpu.h>
  65 #include <plat/pll.h>
  66 #include <plat/pm.h>
  67 #include <plat/mci.h>
  68 #include <plat/ts.h>
  69
  70 #include <sound/uda1380.h>
  71
  72 #define H1940_LATCH             ((void __force __iomem *)0xF8000000)
  73
  74 #define H1940_PA_LATCH          S3C2410_CS2
  75
  76 #define H1940_LATCH_BIT(x)      (1 << ((x) + 16 - S3C_GPIO_END))
  77
  78 static struct map_desc h1940_iodesc[] __initdata = {
  79         [0] = {
  80                 .virtual        = (unsigned long)H1940_LATCH,
  81                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  82                 .length         = SZ_16K,
  83                 .type           = MT_DEVICE
  84         },
  85 };
  86
  87 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  88 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  89 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  90
  91 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  92         [0] = {
  93                 .hwport      = 0,
  94                 .flags       = 0,
  95                 .ucon        = 0x3c5,
  96                 .ulcon       = 0x03,
  97                 .ufcon       = 0x51,
  98         },
  99         [1] = {
 100                 .hwport      = 1,
 101                 .flags       = 0,
 102                 .ucon        = 0x245,
 103                 .ulcon       = 0x03,
 104                 .ufcon       = 0x00,
 105         },
 106         /* IR port */
 107         [2] = {
 108                 .hwport      = 2,
 109                 .flags       = 0,
 110                 .uart_flags  = UPF_CONS_FLOW,
 111                 .ucon        = 0x3c5,
 112                 .ulcon       = 0x43,
 113                 .ufcon       = 0x51,
 114         }
 115 };
 116
 117 /* Board control latch control */
 118
 119 static unsigned int latch_state;
 120
 121 static void h1940_latch_control(unsigned int clear, unsigned int set)
 122 {
 123         unsigned long flags;
 124
 125         local_irq_save(flags);
 126
 127         latch_state &= ~clear;
 128         latch_state |= set;
 129
 130         __raw_writel(latch_state, H1940_LATCH);
 131
 132         local_irq_restore(flags);
 133 }
 134
 135 static inline int h1940_gpiolib_to_latch(int offset)
 136 {
 137         return 1 << (offset + 16);
 138 }
 139
 140 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
 141                                         unsigned offset, int value)
 142 {
 143         int latch_bit = h1940_gpiolib_to_latch(offset);
 144
 145         h1940_latch_control(value ? 0 : latch_bit,
 146                 value ? latch_bit : 0);
 147 }
 148
 149 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
 150                                         unsigned offset, int value)
 151 {
 152         h1940_gpiolib_latch_set(chip, offset, value);
 153         return 0;
 154 }
 155
 156 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
 157                                         unsigned offset)
 158 {
 159         return (latch_state >> (offset + 16)) & 1;
 160 }
 161
 162 struct gpio_chip h1940_latch_gpiochip = {
 163         .base                   = H1940_LATCH_GPIO(0),
 164         .owner                  = THIS_MODULE,
 165         .label                  = "H1940_LATCH",
 166         .ngpio                  = 16,
 167         .direction_output       = h1940_gpiolib_latch_output,
 168         .set                    = h1940_gpiolib_latch_set,
 169         .get                    = h1940_gpiolib_latch_get,
 170 };
 171
 172 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 173         .vbus_pin               = S3C2410_GPG(5),
 174         .vbus_pin_inverted      = 1,
 175         .pullup_pin             = H1940_LATCH_USB_DP,
 176 };
 177
 178 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 179                 .delay = 10000,
 180                 .presc = 49,
 181                 .oversampling_shift = 2,
 182                 .cfg_gpio = s3c24xx_ts_cfg_gpio,
 183 };
 184
 185 /**
 186  * Set lcd on or off
 187  **/
 188 static struct s3c2410fb_display h1940_lcd __initdata = {
 189         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 190                         S3C2410_LCDCON5_INVVLINE | \
 191                         S3C2410_LCDCON5_HWSWP,
 192
 193         .type =         S3C2410_LCDCON1_TFT,
 194         .width =        240,
 195         .height =       320,
 196         .pixclock =     260000,
 197         .xres =         240,
 198         .yres =         320,
 199         .bpp =          16,
 200         .left_margin =  8,
 201         .right_margin = 20,
 202         .hsync_len =    4,
 203         .upper_margin = 8,
 204         .lower_margin = 7,
 205         .vsync_len =    1,
 206 };
 207
 208 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 209         .displays = &h1940_lcd,
 210         .num_displays = 1,
 211         .default_display = 0,
 212
 213         .lpcsel =       0x02,
 214         .gpccon =       0xaa940659,
 215         .gpccon_mask =  0xffffc0f0,
 216         .gpcup =        0x0000ffff,
 217         .gpcup_mask =   0xffffffff,
 218         .gpdcon =       0xaa84aaa0,
 219         .gpdcon_mask =  0xffffffff,
 220         .gpdup =        0x0000faff,
 221         .gpdup_mask =   0xffffffff,
 222 };
 223
 224 static int power_supply_init(struct device *dev)
 225 {
 226         return gpio_request(S3C2410_GPF(2), "cable plugged");
 227 }
 228
 229 static int h1940_is_ac_online(void)
 230 {
 231         return !gpio_get_value(S3C2410_GPF(2));
 232 }
 233
 234 static void power_supply_exit(struct device *dev)
 235 {
 236         gpio_free(S3C2410_GPF(2));
 237 }
 238
 239 static char *h1940_supplicants[] = {
 240         "main-battery",
 241         "backup-battery",
 242 };
 243
 244 static struct pda_power_pdata power_supply_info = {
 245         .init                   = power_supply_init,
 246         .is_ac_online           = h1940_is_ac_online,
 247         .exit                   = power_supply_exit,
 248         .supplied_to            = h1940_supplicants,
 249         .num_supplicants        = ARRAY_SIZE(h1940_supplicants),
 250 };
 251
 252 static struct resource power_supply_resources[] = {
 253         [0] = {
 254                         .name   = "ac",
 255                         .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
 256                                           IORESOURCE_IRQ_HIGHEDGE,
 257                         .start  = IRQ_EINT2,
 258                         .end    = IRQ_EINT2,
 259         },
 260 };
 261
 262 static struct platform_device power_supply = {
 263         .name           = "pda-power",
 264         .id             = -1,
 265         .dev            = {
 266                                 .platform_data =
 267                                         &power_supply_info,
 268         },
 269         .resource       = power_supply_resources,
 270         .num_resources  = ARRAY_SIZE(power_supply_resources),
 271 };
 272
 273 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 274         { .volt = 4070, .cur = 162, .level = 100},
 275         { .volt = 4040, .cur = 165, .level = 95},
 276         { .volt = 4016, .cur = 164, .level = 90},
 277         { .volt = 3996, .cur = 166, .level = 85},
 278         { .volt = 3971, .cur = 168, .level = 80},
 279         { .volt = 3951, .cur = 168, .level = 75},
 280         { .volt = 3931, .cur = 170, .level = 70},
 281         { .volt = 3903, .cur = 172, .level = 65},
 282         { .volt = 3886, .cur = 172, .level = 60},
 283         { .volt = 3858, .cur = 176, .level = 55},
 284         { .volt = 3842, .cur = 176, .level = 50},
 285         { .volt = 3818, .cur = 176, .level = 45},
 286         { .volt = 3789, .cur = 180, .level = 40},
 287         { .volt = 3769, .cur = 180, .level = 35},
 288         { .volt = 3749, .cur = 184, .level = 30},
 289         { .volt = 3732, .cur = 184, .level = 25},
 290         { .volt = 3716, .cur = 184, .level = 20},
 291         { .volt = 3708, .cur = 184, .level = 15},
 292         { .volt = 3716, .cur = 96, .level = 10},
 293         { .volt = 3700, .cur = 96, .level = 5},
 294         { .volt = 3684, .cur = 96, .level = 0},
 295 };
 296
 297 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 298         { .volt = 4130, .cur = 0, .level = 100},
 299         { .volt = 3982, .cur = 0, .level = 50},
 300         { .volt = 3854, .cur = 0, .level = 10},
 301         { .volt = 3841, .cur = 0, .level = 0},
 302 };
 303
 304 int h1940_bat_init(void)
 305 {
 306         int ret;
 307
 308         ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
 309         if (ret)
 310                 return ret;
 311         gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
 312
 313         return 0;
 314
 315 }
 316
 317 void h1940_bat_exit(void)
 318 {
 319         gpio_free(H1940_LATCH_SM803_ENABLE);
 320 }
 321
 322 void h1940_enable_charger(void)
 323 {
 324         gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
 325 }
 326
 327 void h1940_disable_charger(void)
 328 {
 329         gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
 330 }
 331
 332 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
 333         .init = h1940_bat_init,
 334         .exit = h1940_bat_exit,
 335         .enable_charger = h1940_enable_charger,
 336         .disable_charger = h1940_disable_charger,
 337         .gpio_charge_finished = S3C2410_GPF(3),
 338         .gpio_inverted = 1,
 339         .lut_noac = bat_lut_noac,
 340         .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 341         .lut_acin = bat_lut_acin,
 342         .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 343         .volt_channel = 0,
 344         .current_channel = 1,
 345         .volt_mult = 4056,
 346         .current_mult = 1893,
 347         .internal_impedance = 200,
 348         .backup_volt_channel = 3,
 349         /* TODO Check backup volt multiplier */
 350         .backup_volt_mult = 4056,
 351         .backup_volt_min = 0,
 352         .backup_volt_max = 4149288
 353 };
 354
 355 static struct platform_device h1940_battery = {
 356         .name             = "s3c-adc-battery",
 357         .id               = -1,
 358         .dev = {
 359                 .parent = &s3c_device_adc.dev,
 360                 .platform_data = &h1940_bat_cfg,
 361         },
 362 };
 363
 364 DEFINE_SPINLOCK(h1940_blink_spin);
 365
 366 int h1940_led_blink_set(unsigned gpio, int state,
 367         unsigned long *delay_on, unsigned long *delay_off)
 368 {
 369         int blink_gpio, check_gpio1, check_gpio2;
 370
 371         switch (gpio) {
 372         case H1940_LATCH_LED_GREEN:
 373                 blink_gpio = S3C2410_GPA(7);
 374                 check_gpio1 = S3C2410_GPA(1);
 375                 check_gpio2 = S3C2410_GPA(3);
 376                 break;
 377         case H1940_LATCH_LED_RED:
 378                 blink_gpio = S3C2410_GPA(1);
 379                 check_gpio1 = S3C2410_GPA(7);
 380                 check_gpio2 = S3C2410_GPA(3);
 381                 break;
 382         default:
 383                 blink_gpio = S3C2410_GPA(3);
 384                 check_gpio1 = S3C2410_GPA(1);
 385                 check_gpio1 = S3C2410_GPA(7);
 386                 break;
 387         }
 388
 389         if (delay_on && delay_off && !*delay_on && !*delay_off)
 390                 *delay_on = *delay_off = 500;
 391
 392         spin_lock(&h1940_blink_spin);
 393
 394         switch (state) {
 395         case GPIO_LED_NO_BLINK_LOW:
 396         case GPIO_LED_NO_BLINK_HIGH:
 397                 if (!gpio_get_value(check_gpio1) &&
 398                     !gpio_get_value(check_gpio2))
 399                         gpio_set_value(H1940_LATCH_LED_FLASH, 0);
 400                 gpio_set_value(blink_gpio, 0);
 401                 if (gpio_is_valid(gpio))
 402                         gpio_set_value(gpio, state);
 403                 break;
 404         case GPIO_LED_BLINK:
 405                 if (gpio_is_valid(gpio))
 406                         gpio_set_value(gpio, 0);
 407                 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
 408                 gpio_set_value(blink_gpio, 1);
 409                 break;
 410         }
 411
 412         spin_unlock(&h1940_blink_spin);
 413
 414         return 0;
 415 }
 416 EXPORT_SYMBOL(h1940_led_blink_set);
 417
 418 static struct gpio_led h1940_leds_desc[] = {
 419         {
 420                 .name                   = "Green",
 421                 .default_trigger        = "main-battery-full",
 422                 .gpio                   = H1940_LATCH_LED_GREEN,
 423                 .retain_state_suspended = 1,
 424         },
 425         {
 426                 .name                   = "Red",
 427                 .default_trigger
 428                         = "main-battery-charging-blink-full-solid",
 429                 .gpio                   = H1940_LATCH_LED_RED,
 430                 .retain_state_suspended = 1,
 431         },
 432 };
 433
 434 static struct gpio_led_platform_data h1940_leds_pdata = {
 435         .num_leds       = ARRAY_SIZE(h1940_leds_desc),
 436         .leds           = h1940_leds_desc,
 437         .gpio_blink_set = h1940_led_blink_set,
 438 };
 439
 440 static struct platform_device h1940_device_leds = {
 441         .name   = "leds-gpio",
 442         .id     = -1,
 443         .dev    = {
 444                         .platform_data = &h1940_leds_pdata,
 445         },
 446 };
 447
 448 static struct platform_device h1940_device_bluetooth = {
 449         .name             = "h1940-bt",
 450         .id               = -1,
 451 };
 452
 453 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 454 {
 455         switch (power_mode) {
 456         case MMC_POWER_OFF:
 457                 gpio_set_value(H1940_LATCH_SD_POWER, 0);
 458                 break;
 459         case MMC_POWER_UP:
 460         case MMC_POWER_ON:
 461                 gpio_set_value(H1940_LATCH_SD_POWER, 1);
 462                 break;
 463         default:
 464                 break;
 465         };
 466 }
 467
 468 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
 469         .gpio_detect   = S3C2410_GPF(5),
 470         .gpio_wprotect = S3C2410_GPH(8),
 471         .set_power     = h1940_set_mmc_power,
 472         .ocr_avail     = MMC_VDD_32_33,
 473 };
 474
 475 static int h1940_backlight_init(struct device *dev)
 476 {
 477         gpio_request(S3C2410_GPB(0), "Backlight");
 478
 479         gpio_direction_output(S3C2410_GPB(0), 0);
 480         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 481         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 482         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 483
 484         return 0;
 485 }
 486
 487 static int h1940_backlight_notify(struct device *dev, int brightness)
 488 {
 489         if (!brightness) {
 490                 gpio_direction_output(S3C2410_GPB(0), 1);
 491                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 492         } else {
 493                 gpio_direction_output(S3C2410_GPB(0), 0);
 494                 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 495                 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 496                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 497         }
 498         return brightness;
 499 }
 500
 501 static void h1940_backlight_exit(struct device *dev)
 502 {
 503         gpio_direction_output(S3C2410_GPB(0), 1);
 504         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 505 }
 506
 507
 508 static struct platform_pwm_backlight_data backlight_data = {
 509         .pwm_id         = 0,
 510         .max_brightness = 100,
 511         .dft_brightness = 50,
 512         /* tcnt = 0x31 */
 513         .pwm_period_ns  = 36296,
 514         .init           = h1940_backlight_init,
 515         .notify         = h1940_backlight_notify,
 516         .exit           = h1940_backlight_exit,
 517 };
 518
 519 static struct platform_device h1940_backlight = {
 520         .name = "pwm-backlight",
 521         .dev  = {
 522                 .parent = &s3c_device_timer[0].dev,
 523                 .platform_data = &backlight_data,
 524         },
 525         .id   = -1,
 526 };
 527
 528 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 529                                         unsigned int power)
 530 {
 531         int value, retries = 100;
 532
 533         if (!power) {
 534                 gpio_set_value(S3C2410_GPC(0), 0);
 535                 /* wait for 3ac */
 536                 do {
 537                         value = gpio_get_value(S3C2410_GPC(6));
 538                 } while (value && retries--);
 539
 540                 gpio_set_value(H1940_LATCH_LCD_P2, 0);
 541                 gpio_set_value(H1940_LATCH_LCD_P3, 0);
 542                 gpio_set_value(H1940_LATCH_LCD_P4, 0);
 543
 544                 gpio_direction_output(S3C2410_GPC(1), 0);
 545                 gpio_direction_output(S3C2410_GPC(4), 0);
 546
 547                 gpio_set_value(H1940_LATCH_LCD_P1, 0);
 548                 gpio_set_value(H1940_LATCH_LCD_P0, 0);
 549
 550                 gpio_set_value(S3C2410_GPC(5), 0);
 551
 552         } else {
 553                 gpio_set_value(H1940_LATCH_LCD_P0, 1);
 554                 gpio_set_value(H1940_LATCH_LCD_P1, 1);
 555
 556                 gpio_direction_input(S3C2410_GPC(1));
 557                 gpio_direction_input(S3C2410_GPC(4));
 558                 mdelay(10);
 559                 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 560                 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
 561
 562                 gpio_set_value(S3C2410_GPC(5), 1);
 563                 gpio_set_value(S3C2410_GPC(0), 1);
 564
 565                 gpio_set_value(H1940_LATCH_LCD_P3, 1);
 566                 gpio_set_value(H1940_LATCH_LCD_P2, 1);
 567                 gpio_set_value(H1940_LATCH_LCD_P4, 1);
 568         }
 569 }
 570
 571 static struct plat_lcd_data h1940_lcd_power_data = {
 572         .set_power      = h1940_lcd_power_set,
 573 };
 574
 575 static struct platform_device h1940_lcd_powerdev = {
 576         .name                   = "platform-lcd",
 577         .dev.parent             = &s3c_device_lcd.dev,
 578         .dev.platform_data      = &h1940_lcd_power_data,
 579 };
 580
 581 static struct uda1380_platform_data uda1380_info = {
 582         .gpio_power     = H1940_LATCH_UDA_POWER,
 583         .gpio_reset     = S3C2410_GPA(12),
 584         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 585 };
 586
 587 static struct i2c_board_info h1940_i2c_devices[] = {
 588         {
 589                 I2C_BOARD_INFO("uda1380", 0x1a),
 590                 .platform_data = &uda1380_info,
 591         },
 592 };
 593
 594 #define DECLARE_BUTTON(p, k, n, w)      \
 595         {                               \
 596                 .gpio           = p,    \
 597                 .code           = k,    \
 598                 .desc           = n,    \
 599                 .wakeup         = w,    \
 600                 .active_low     = 1,    \
 601         }
 602
 603 static struct gpio_keys_button h1940_buttons[] = {
 604         DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 605         DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 606         DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 607         DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 608         DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 609         DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 610         DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 611         DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 612         DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 613         DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 614         DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 615 };
 616
 617 static struct gpio_keys_platform_data h1940_buttons_data = {
 618         .buttons        = h1940_buttons,
 619         .nbuttons       = ARRAY_SIZE(h1940_buttons),
 620 };
 621
 622 static struct platform_device h1940_dev_buttons = {
 623         .name           = "gpio-keys",
 624         .id             = -1,
 625         .dev            = {
 626                 .platform_data  = &h1940_buttons_data,
 627         }
 628 };
 629
 630 static struct platform_device *h1940_devices[] __initdata = {
 631         &h1940_dev_buttons,
 632         &s3c_device_ohci,
 633         &s3c_device_lcd,
 634         &s3c_device_wdt,
 635         &s3c_device_i2c0,
 636         &s3c_device_iis,
 637         &samsung_asoc_dma,
 638         &s3c_device_usbgadget,
 639         &h1940_device_leds,
 640         &h1940_device_bluetooth,
 641         &s3c_device_sdi,
 642         &s3c_device_rtc,
 643         &s3c_device_timer[0],
 644         &h1940_backlight,
 645         &h1940_lcd_powerdev,
 646         &s3c_device_adc,
 647         &s3c_device_ts,
 648         &power_supply,
 649         &h1940_battery,
 650 };
 651
 652 static void __init h1940_map_io(void)
 653 {
 654         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 655         s3c24xx_init_clocks(0);
 656         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 657
 658         /* setup PM */
 659
 660 #ifdef CONFIG_PM_H1940
 661         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 662 #endif
 663         s3c_pm_init();
 664
 665         /* Add latch gpio chip, set latch initial value */
 666         h1940_latch_control(0, 0);
 667         WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
 668 }
 669
 670 /* H1940 and RX3715 need to reserve this for suspend */
 671 static void __init h1940_reserve(void)
 672 {
 673         memblock_reserve(0x30003000, 0x1000);
 674         memblock_reserve(0x30081000, 0x1000);
 675 }
 676
 677 static void __init h1940_init_irq(void)
 678 {
 679         s3c24xx_init_irq();
 680 }
 681
 682 static void __init h1940_init(void)
 683 {
 684         u32 tmp;
 685
 686         s3c24xx_fb_set_platdata(&h1940_fb_info);
 687         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 688         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 689         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 690         s3c_i2c0_set_platdata(NULL);
 691
 692         /* Turn off suspend on both USB ports, and switch the
 693          * selectable USB port to USB device mode. */
 694
 695         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 696                               S3C2410_MISCCR_USBSUSPND0 |
 697                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 698
 699         tmp =   (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
 700               | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
 701               | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
 702         writel(tmp, S3C2410_UPLLCON);
 703
 704         gpio_request(S3C2410_GPC(0), "LCD power");
 705         gpio_request(S3C2410_GPC(1), "LCD power");
 706         gpio_request(S3C2410_GPC(4), "LCD power");
 707         gpio_request(S3C2410_GPC(5), "LCD power");
 708         gpio_request(S3C2410_GPC(6), "LCD power");
 709         gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 710         gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 711         gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 712         gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 713         gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 714         gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 715         gpio_direction_output(S3C2410_GPC(0), 0);
 716         gpio_direction_output(S3C2410_GPC(1), 0);
 717         gpio_direction_output(S3C2410_GPC(4), 0);
 718         gpio_direction_output(S3C2410_GPC(5), 0);
 719         gpio_direction_input(S3C2410_GPC(6));
 720         gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 721         gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 722         gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 723         gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 724         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 725         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 726
 727         gpio_request(H1940_LATCH_SD_POWER, "SD power");
 728         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 729
 730         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 731
 732         gpio_request(S3C2410_GPA(1), "Red LED blink");
 733         gpio_request(S3C2410_GPA(3), "Blue LED blink");
 734         gpio_request(S3C2410_GPA(7), "Green LED blink");
 735         gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 736         gpio_direction_output(S3C2410_GPA(1), 0);
 737         gpio_direction_output(S3C2410_GPA(3), 0);
 738         gpio_direction_output(S3C2410_GPA(7), 0);
 739         gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
 740
 741         i2c_register_board_info(0, h1940_i2c_devices,
 742                 ARRAY_SIZE(h1940_i2c_devices));
 743 }
 744
 745 MACHINE_START(H1940, "IPAQ-H1940")
 746         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 747         .atag_offset    = 0x100,
 748         .map_io         = h1940_map_io,
 749         .reserve        = h1940_reserve,
 750         .init_irq       = h1940_init_irq,
 751         .init_machine   = h1940_init,
 752         .timer          = &s3c24xx_timer,
 753 MACHINE_END