arch/arm/mach-s3c24xx/mach-h1940.c

   1 /*
   2  * Copyright (c) 2003-2005 Simtec Electronics
   3  *   Ben Dooks <ben@simtec.co.uk>
   4  *
   5  * http://www.handhelds.org/projects/h1940.html
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11 */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/types.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/list.h>
  17 #include <linux/memblock.h>
  18 #include <linux/timer.h>
  19 #include <linux/init.h>
  20 #include <linux/device.h>
  21 #include <linux/serial_core.h>
  22 #include <linux/serial_s3c.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 #include <linux/export.h>
  39
  40 #include <asm/irq.h>
  41 #include <asm/mach-types.h>
  42 #include <asm/mach/arch.h>
  43 #include <asm/mach/map.h>
  44 #include <asm/mach/irq.h>
  45
  46 #include <linux/platform_data/i2c-s3c2410.h>
  47 #include <linux/platform_data/mmc-s3cmci.h>
  48 #include <linux/platform_data/touchscreen-s3c2410.h>
  49 #include <linux/platform_data/usb-s3c2410_udc.h>
  50
  51 #include <sound/uda1380.h>
  52
  53 #include <mach/fb.h>
  54 #include <mach/hardware.h>
  55 #include <mach/regs-clock.h>
  56 #include <mach/regs-gpio.h>
  57 #include <mach/regs-lcd.h>
  58 #include <mach/gpio-samsung.h>
  59
  60 #include <plat/clock.h>
  61 #include <plat/cpu.h>
  62 #include <plat/devs.h>
  63 #include <plat/gpio-cfg.h>
  64 #include <plat/pll.h>
  65 #include <plat/pm.h>
  66 #include <plat/samsung-time.h>
  67
  68 #include "common.h"
  69 #include "h1940.h"
  70
  71 #define H1940_LATCH             ((void __force __iomem *)0xF8000000)
  72
  73 #define H1940_PA_LATCH          S3C2410_CS2
  74
  75 #define H1940_LATCH_BIT(x)      (1 << ((x) + 16 - S3C_GPIO_END))
  76
  77 static struct map_desc h1940_iodesc[] __initdata = {
  78         [0] = {
  79                 .virtual        = (unsigned long)H1940_LATCH,
  80                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  81                 .length         = SZ_16K,
  82                 .type           = MT_DEVICE
  83         },
  84 };
  85
  86 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  87 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  88 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  89
  90 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  91         [0] = {
  92                 .hwport      = 0,
  93                 .flags       = 0,
  94                 .ucon        = 0x3c5,
  95                 .ulcon       = 0x03,
  96                 .ufcon       = 0x51,
  97         },
  98         [1] = {
  99                 .hwport      = 1,
 100                 .flags       = 0,
 101                 .ucon        = 0x245,
 102                 .ulcon       = 0x03,
 103                 .ufcon       = 0x00,
 104         },
 105         /* IR port */
 106         [2] = {
 107                 .hwport      = 2,
 108                 .flags       = 0,
 109                 .uart_flags  = UPF_CONS_FLOW,
 110                 .ucon        = 0x3c5,
 111                 .ulcon       = 0x43,
 112                 .ufcon       = 0x51,
 113         }
 114 };
 115
 116 /* Board control latch control */
 117
 118 static unsigned int latch_state;
 119
 120 static void h1940_latch_control(unsigned int clear, unsigned int set)
 121 {
 122         unsigned long flags;
 123
 124         local_irq_save(flags);
 125
 126         latch_state &= ~clear;
 127         latch_state |= set;
 128
 129         __raw_writel(latch_state, H1940_LATCH);
 130
 131         local_irq_restore(flags);
 132 }
 133
 134 static inline int h1940_gpiolib_to_latch(int offset)
 135 {
 136         return 1 << (offset + 16);
 137 }
 138
 139 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
 140                                         unsigned offset, int value)
 141 {
 142         int latch_bit = h1940_gpiolib_to_latch(offset);
 143
 144         h1940_latch_control(value ? 0 : latch_bit,
 145                 value ? latch_bit : 0);
 146 }
 147
 148 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
 149                                         unsigned offset, int value)
 150 {
 151         h1940_gpiolib_latch_set(chip, offset, value);
 152         return 0;
 153 }
 154
 155 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
 156                                         unsigned offset)
 157 {
 158         return (latch_state >> (offset + 16)) & 1;
 159 }
 160
 161 static struct gpio_chip h1940_latch_gpiochip = {
 162         .base                   = H1940_LATCH_GPIO(0),
 163         .owner                  = THIS_MODULE,
 164         .label                  = "H1940_LATCH",
 165         .ngpio                  = 16,
 166         .direction_output       = h1940_gpiolib_latch_output,
 167         .set                    = h1940_gpiolib_latch_set,
 168         .get                    = h1940_gpiolib_latch_get,
 169 };
 170
 171 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 172         .vbus_pin               = S3C2410_GPG(5),
 173         .vbus_pin_inverted      = 1,
 174         .pullup_pin             = H1940_LATCH_USB_DP,
 175 };
 176
 177 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 178                 .delay = 10000,
 179                 .presc = 49,
 180                 .oversampling_shift = 2,
 181                 .cfg_gpio = s3c24xx_ts_cfg_gpio,
 182 };
 183
 184 /**
 185  * Set lcd on or off
 186  **/
 187 static struct s3c2410fb_display h1940_lcd __initdata = {
 188         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 189                         S3C2410_LCDCON5_INVVLINE | \
 190                         S3C2410_LCDCON5_HWSWP,
 191
 192         .type =         S3C2410_LCDCON1_TFT,
 193         .width =        240,
 194         .height =       320,
 195         .pixclock =     260000,
 196         .xres =         240,
 197         .yres =         320,
 198         .bpp =          16,
 199         .left_margin =  8,
 200         .right_margin = 20,
 201         .hsync_len =    4,
 202         .upper_margin = 8,
 203         .lower_margin = 7,
 204         .vsync_len =    1,
 205 };
 206
 207 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 208         .displays = &h1940_lcd,
 209         .num_displays = 1,
 210         .default_display = 0,
 211
 212         .lpcsel =       0x02,
 213         .gpccon =       0xaa940659,
 214         .gpccon_mask =  0xffffc0f0,
 215         .gpcup =        0x0000ffff,
 216         .gpcup_mask =   0xffffffff,
 217         .gpdcon =       0xaa84aaa0,
 218         .gpdcon_mask =  0xffffffff,
 219         .gpdup =        0x0000faff,
 220         .gpdup_mask =   0xffffffff,
 221 };
 222
 223 static int power_supply_init(struct device *dev)
 224 {
 225         return gpio_request(S3C2410_GPF(2), "cable plugged");
 226 }
 227
 228 static int h1940_is_ac_online(void)
 229 {
 230         return !gpio_get_value(S3C2410_GPF(2));
 231 }
 232
 233 static void power_supply_exit(struct device *dev)
 234 {
 235         gpio_free(S3C2410_GPF(2));
 236 }
 237
 238 static char *h1940_supplicants[] = {
 239         "main-battery",
 240         "backup-battery",
 241 };
 242
 243 static struct pda_power_pdata power_supply_info = {
 244         .init                   = power_supply_init,
 245         .is_ac_online           = h1940_is_ac_online,
 246         .exit                   = power_supply_exit,
 247         .supplied_to            = h1940_supplicants,
 248         .num_supplicants        = ARRAY_SIZE(h1940_supplicants),
 249 };
 250
 251 static struct resource power_supply_resources[] = {
 252         [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 253                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 254 };
 255
 256 static struct platform_device power_supply = {
 257         .name           = "pda-power",
 258         .id             = -1,
 259         .dev            = {
 260                                 .platform_data =
 261                                         &power_supply_info,
 262         },
 263         .resource       = power_supply_resources,
 264         .num_resources  = ARRAY_SIZE(power_supply_resources),
 265 };
 266
 267 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 268         { .volt = 4070, .cur = 162, .level = 100},
 269         { .volt = 4040, .cur = 165, .level = 95},
 270         { .volt = 4016, .cur = 164, .level = 90},
 271         { .volt = 3996, .cur = 166, .level = 85},
 272         { .volt = 3971, .cur = 168, .level = 80},
 273         { .volt = 3951, .cur = 168, .level = 75},
 274         { .volt = 3931, .cur = 170, .level = 70},
 275         { .volt = 3903, .cur = 172, .level = 65},
 276         { .volt = 3886, .cur = 172, .level = 60},
 277         { .volt = 3858, .cur = 176, .level = 55},
 278         { .volt = 3842, .cur = 176, .level = 50},
 279         { .volt = 3818, .cur = 176, .level = 45},
 280         { .volt = 3789, .cur = 180, .level = 40},
 281         { .volt = 3769, .cur = 180, .level = 35},
 282         { .volt = 3749, .cur = 184, .level = 30},
 283         { .volt = 3732, .cur = 184, .level = 25},
 284         { .volt = 3716, .cur = 184, .level = 20},
 285         { .volt = 3708, .cur = 184, .level = 15},
 286         { .volt = 3716, .cur = 96, .level = 10},
 287         { .volt = 3700, .cur = 96, .level = 5},
 288         { .volt = 3684, .cur = 96, .level = 0},
 289 };
 290
 291 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 292         { .volt = 4130, .cur = 0, .level = 100},
 293         { .volt = 3982, .cur = 0, .level = 50},
 294         { .volt = 3854, .cur = 0, .level = 10},
 295         { .volt = 3841, .cur = 0, .level = 0},
 296 };
 297
 298 static int h1940_bat_init(void)
 299 {
 300         int ret;
 301
 302         ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
 303         if (ret)
 304                 return ret;
 305         gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
 306
 307         return 0;
 308
 309 }
 310
 311 static void h1940_bat_exit(void)
 312 {
 313         gpio_free(H1940_LATCH_SM803_ENABLE);
 314 }
 315
 316 static void h1940_enable_charger(void)
 317 {
 318         gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
 319 }
 320
 321 static void h1940_disable_charger(void)
 322 {
 323         gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
 324 }
 325
 326 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
 327         .init = h1940_bat_init,
 328         .exit = h1940_bat_exit,
 329         .enable_charger = h1940_enable_charger,
 330         .disable_charger = h1940_disable_charger,
 331         .gpio_charge_finished = S3C2410_GPF(3),
 332         .gpio_inverted = 1,
 333         .lut_noac = bat_lut_noac,
 334         .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 335         .lut_acin = bat_lut_acin,
 336         .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 337         .volt_channel = 0,
 338         .current_channel = 1,
 339         .volt_mult = 4056,
 340         .current_mult = 1893,
 341         .internal_impedance = 200,
 342         .backup_volt_channel = 3,
 343         /* TODO Check backup volt multiplier */
 344         .backup_volt_mult = 4056,
 345         .backup_volt_min = 0,
 346         .backup_volt_max = 4149288
 347 };
 348
 349 static struct platform_device h1940_battery = {
 350         .name             = "s3c-adc-battery",
 351         .id               = -1,
 352         .dev = {
 353                 .parent = &s3c_device_adc.dev,
 354                 .platform_data = &h1940_bat_cfg,
 355         },
 356 };
 357
 358 static DEFINE_SPINLOCK(h1940_blink_spin);
 359
 360 int h1940_led_blink_set(unsigned gpio, int state,
 361         unsigned long *delay_on, unsigned long *delay_off)
 362 {
 363         int blink_gpio, check_gpio1, check_gpio2;
 364
 365         switch (gpio) {
 366         case H1940_LATCH_LED_GREEN:
 367                 blink_gpio = S3C2410_GPA(7);
 368                 check_gpio1 = S3C2410_GPA(1);
 369                 check_gpio2 = S3C2410_GPA(3);
 370                 break;
 371         case H1940_LATCH_LED_RED:
 372                 blink_gpio = S3C2410_GPA(1);
 373                 check_gpio1 = S3C2410_GPA(7);
 374                 check_gpio2 = S3C2410_GPA(3);
 375                 break;
 376         default:
 377                 blink_gpio = S3C2410_GPA(3);
 378                 check_gpio1 = S3C2410_GPA(1);
 379                 check_gpio2 = S3C2410_GPA(7);
 380                 break;
 381         }
 382
 383         if (delay_on && delay_off && !*delay_on && !*delay_off)
 384                 *delay_on = *delay_off = 500;
 385
 386         spin_lock(&h1940_blink_spin);
 387
 388         switch (state) {
 389         case GPIO_LED_NO_BLINK_LOW:
 390         case GPIO_LED_NO_BLINK_HIGH:
 391                 if (!gpio_get_value(check_gpio1) &&
 392                     !gpio_get_value(check_gpio2))
 393                         gpio_set_value(H1940_LATCH_LED_FLASH, 0);
 394                 gpio_set_value(blink_gpio, 0);
 395                 if (gpio_is_valid(gpio))
 396                         gpio_set_value(gpio, state);
 397                 break;
 398         case GPIO_LED_BLINK:
 399                 if (gpio_is_valid(gpio))
 400                         gpio_set_value(gpio, 0);
 401                 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
 402                 gpio_set_value(blink_gpio, 1);
 403                 break;
 404         }
 405
 406         spin_unlock(&h1940_blink_spin);
 407
 408         return 0;
 409 }
 410 EXPORT_SYMBOL(h1940_led_blink_set);
 411
 412 static struct gpio_led h1940_leds_desc[] = {
 413         {
 414                 .name                   = "Green",
 415                 .default_trigger        = "main-battery-full",
 416                 .gpio                   = H1940_LATCH_LED_GREEN,
 417                 .retain_state_suspended = 1,
 418         },
 419         {
 420                 .name                   = "Red",
 421                 .default_trigger
 422                         = "main-battery-charging-blink-full-solid",
 423                 .gpio                   = H1940_LATCH_LED_RED,
 424                 .retain_state_suspended = 1,
 425         },
 426 };
 427
 428 static struct gpio_led_platform_data h1940_leds_pdata = {
 429         .num_leds       = ARRAY_SIZE(h1940_leds_desc),
 430         .leds           = h1940_leds_desc,
 431         .gpio_blink_set = h1940_led_blink_set,
 432 };
 433
 434 static struct platform_device h1940_device_leds = {
 435         .name   = "leds-gpio",
 436         .id     = -1,
 437         .dev    = {
 438                         .platform_data = &h1940_leds_pdata,
 439         },
 440 };
 441
 442 static struct platform_device h1940_device_bluetooth = {
 443         .name             = "h1940-bt",
 444         .id               = -1,
 445 };
 446
 447 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 448 {
 449         switch (power_mode) {
 450         case MMC_POWER_OFF:
 451                 gpio_set_value(H1940_LATCH_SD_POWER, 0);
 452                 break;
 453         case MMC_POWER_UP:
 454         case MMC_POWER_ON:
 455                 gpio_set_value(H1940_LATCH_SD_POWER, 1);
 456                 break;
 457         default:
 458                 break;
 459         }
 460 }
 461
 462 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
 463         .gpio_detect   = S3C2410_GPF(5),
 464         .gpio_wprotect = S3C2410_GPH(8),
 465         .set_power     = h1940_set_mmc_power,
 466         .ocr_avail     = MMC_VDD_32_33,
 467 };
 468
 469 static int h1940_backlight_init(struct device *dev)
 470 {
 471         gpio_request(S3C2410_GPB(0), "Backlight");
 472
 473         gpio_direction_output(S3C2410_GPB(0), 0);
 474         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 475         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 476         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 477
 478         return 0;
 479 }
 480
 481 static int h1940_backlight_notify(struct device *dev, int brightness)
 482 {
 483         if (!brightness) {
 484                 gpio_direction_output(S3C2410_GPB(0), 1);
 485                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 486         } else {
 487                 gpio_direction_output(S3C2410_GPB(0), 0);
 488                 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 489                 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 490                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 491         }
 492         return brightness;
 493 }
 494
 495 static void h1940_backlight_exit(struct device *dev)
 496 {
 497         gpio_direction_output(S3C2410_GPB(0), 1);
 498         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 499 }
 500
 501
 502 static struct platform_pwm_backlight_data backlight_data = {
 503         .pwm_id         = 0,
 504         .max_brightness = 100,
 505         .dft_brightness = 50,
 506         /* tcnt = 0x31 */
 507         .pwm_period_ns  = 36296,
 508         .enable_gpio    = -1,
 509         .init           = h1940_backlight_init,
 510         .notify         = h1940_backlight_notify,
 511         .exit           = h1940_backlight_exit,
 512 };
 513
 514 static struct platform_device h1940_backlight = {
 515         .name = "pwm-backlight",
 516         .dev  = {
 517                 .parent = &samsung_device_pwm.dev,
 518                 .platform_data = &backlight_data,
 519         },
 520         .id   = -1,
 521 };
 522
 523 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 524                                         unsigned int power)
 525 {
 526         int value, retries = 100;
 527
 528         if (!power) {
 529                 gpio_set_value(S3C2410_GPC(0), 0);
 530                 /* wait for 3ac */
 531                 do {
 532                         value = gpio_get_value(S3C2410_GPC(6));
 533                 } while (value && retries--);
 534
 535                 gpio_set_value(H1940_LATCH_LCD_P2, 0);
 536                 gpio_set_value(H1940_LATCH_LCD_P3, 0);
 537                 gpio_set_value(H1940_LATCH_LCD_P4, 0);
 538
 539                 gpio_direction_output(S3C2410_GPC(1), 0);
 540                 gpio_direction_output(S3C2410_GPC(4), 0);
 541
 542                 gpio_set_value(H1940_LATCH_LCD_P1, 0);
 543                 gpio_set_value(H1940_LATCH_LCD_P0, 0);
 544
 545                 gpio_set_value(S3C2410_GPC(5), 0);
 546
 547         } else {
 548                 gpio_set_value(H1940_LATCH_LCD_P0, 1);
 549                 gpio_set_value(H1940_LATCH_LCD_P1, 1);
 550
 551                 gpio_direction_input(S3C2410_GPC(1));
 552                 gpio_direction_input(S3C2410_GPC(4));
 553                 mdelay(10);
 554                 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 555                 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
 556
 557                 gpio_set_value(S3C2410_GPC(5), 1);
 558                 gpio_set_value(S3C2410_GPC(0), 1);
 559
 560                 gpio_set_value(H1940_LATCH_LCD_P3, 1);
 561                 gpio_set_value(H1940_LATCH_LCD_P2, 1);
 562                 gpio_set_value(H1940_LATCH_LCD_P4, 1);
 563         }
 564 }
 565
 566 static struct plat_lcd_data h1940_lcd_power_data = {
 567         .set_power      = h1940_lcd_power_set,
 568 };
 569
 570 static struct platform_device h1940_lcd_powerdev = {
 571         .name                   = "platform-lcd",
 572         .dev.parent             = &s3c_device_lcd.dev,
 573         .dev.platform_data      = &h1940_lcd_power_data,
 574 };
 575
 576 static struct uda1380_platform_data uda1380_info = {
 577         .gpio_power     = H1940_LATCH_UDA_POWER,
 578         .gpio_reset     = S3C2410_GPA(12),
 579         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 580 };
 581
 582 static struct i2c_board_info h1940_i2c_devices[] = {
 583         {
 584                 I2C_BOARD_INFO("uda1380", 0x1a),
 585                 .platform_data = &uda1380_info,
 586         },
 587 };
 588
 589 #define DECLARE_BUTTON(p, k, n, w)      \
 590         {                               \
 591                 .gpio           = p,    \
 592                 .code           = k,    \
 593                 .desc           = n,    \
 594                 .wakeup         = w,    \
 595                 .active_low     = 1,    \
 596         }
 597
 598 static struct gpio_keys_button h1940_buttons[] = {
 599         DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 600         DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 601         DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 602         DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 603         DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 604         DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 605         DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 606         DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 607         DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 608         DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 609         DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 610 };
 611
 612 static struct gpio_keys_platform_data h1940_buttons_data = {
 613         .buttons        = h1940_buttons,
 614         .nbuttons       = ARRAY_SIZE(h1940_buttons),
 615 };
 616
 617 static struct platform_device h1940_dev_buttons = {
 618         .name           = "gpio-keys",
 619         .id             = -1,
 620         .dev            = {
 621                 .platform_data  = &h1940_buttons_data,
 622         }
 623 };
 624
 625 static struct platform_device *h1940_devices[] __initdata = {
 626         &h1940_dev_buttons,
 627         &s3c_device_ohci,
 628         &s3c_device_lcd,
 629         &s3c_device_wdt,
 630         &s3c_device_i2c0,
 631         &s3c_device_iis,
 632         &s3c_device_usbgadget,
 633         &h1940_device_leds,
 634         &h1940_device_bluetooth,
 635         &s3c_device_sdi,
 636         &s3c_device_rtc,
 637         &samsung_device_pwm,
 638         &h1940_backlight,
 639         &h1940_lcd_powerdev,
 640         &s3c_device_adc,
 641         &s3c_device_ts,
 642         &power_supply,
 643         &h1940_battery,
 644 };
 645
 646 static void __init h1940_map_io(void)
 647 {
 648         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 649         s3c24xx_init_clocks(0);
 650         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 651         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 652
 653         /* setup PM */
 654
 655 #ifdef CONFIG_PM_H1940
 656         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 657 #endif
 658         s3c_pm_init();
 659
 660         /* Add latch gpio chip, set latch initial value */
 661         h1940_latch_control(0, 0);
 662         WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
 663 }
 664
 665 /* H1940 and RX3715 need to reserve this for suspend */
 666 static void __init h1940_reserve(void)
 667 {
 668         memblock_reserve(0x30003000, 0x1000);
 669         memblock_reserve(0x30081000, 0x1000);
 670 }
 671
 672 static void __init h1940_init(void)
 673 {
 674         u32 tmp;
 675
 676         s3c24xx_fb_set_platdata(&h1940_fb_info);
 677         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 678         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 679         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 680         s3c_i2c0_set_platdata(NULL);
 681
 682         /* Turn off suspend on both USB ports, and switch the
 683          * selectable USB port to USB device mode. */
 684
 685         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 686                               S3C2410_MISCCR_USBSUSPND0 |
 687                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 688
 689         tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
 690               | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
 691               | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
 692         writel(tmp, S3C2410_UPLLCON);
 693
 694         gpio_request(S3C2410_GPC(0), "LCD power");
 695         gpio_request(S3C2410_GPC(1), "LCD power");
 696         gpio_request(S3C2410_GPC(4), "LCD power");
 697         gpio_request(S3C2410_GPC(5), "LCD power");
 698         gpio_request(S3C2410_GPC(6), "LCD power");
 699         gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 700         gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 701         gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 702         gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 703         gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 704         gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 705         gpio_direction_output(S3C2410_GPC(0), 0);
 706         gpio_direction_output(S3C2410_GPC(1), 0);
 707         gpio_direction_output(S3C2410_GPC(4), 0);
 708         gpio_direction_output(S3C2410_GPC(5), 0);
 709         gpio_direction_input(S3C2410_GPC(6));
 710         gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 711         gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 712         gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 713         gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 714         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 715         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 716
 717         gpio_request(H1940_LATCH_SD_POWER, "SD power");
 718         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 719
 720         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 721
 722         gpio_request(S3C2410_GPA(1), "Red LED blink");
 723         gpio_request(S3C2410_GPA(3), "Blue LED blink");
 724         gpio_request(S3C2410_GPA(7), "Green LED blink");
 725         gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 726         gpio_direction_output(S3C2410_GPA(1), 0);
 727         gpio_direction_output(S3C2410_GPA(3), 0);
 728         gpio_direction_output(S3C2410_GPA(7), 0);
 729         gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
 730
 731         i2c_register_board_info(0, h1940_i2c_devices,
 732                 ARRAY_SIZE(h1940_i2c_devices));
 733 }
 734
 735 MACHINE_START(H1940, "IPAQ-H1940")
 736         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 737         .atag_offset    = 0x100,
 738         .map_io         = h1940_map_io,
 739         .reserve        = h1940_reserve,
 740         .init_irq       = s3c2410_init_irq,
 741         .init_machine   = h1940_init,
 742         .init_time      = samsung_timer_init,
 743         .restart        = s3c2410_restart,
 744 MACHINE_END