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/cpu.h>
  61 #include <plat/devs.h>
  62 #include <plat/gpio-cfg.h>
  63 #include <plat/pll.h>
  64 #include <plat/pm.h>
  65 #include <plat/samsung-time.h>
  66
  67 #include "common.h"
  68 #include "h1940.h"
  69
  70 #define H1940_LATCH             ((void __force __iomem *)0xF8000000)
  71
  72 #define H1940_PA_LATCH          S3C2410_CS2
  73
  74 #define H1940_LATCH_BIT(x)      (1 << ((x) + 16 - S3C_GPIO_END))
  75
  76 static struct map_desc h1940_iodesc[] __initdata = {
  77         [0] = {
  78                 .virtual        = (unsigned long)H1940_LATCH,
  79                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  80                 .length         = SZ_16K,
  81                 .type           = MT_DEVICE
  82         },
  83 };
  84
  85 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  86 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  87 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  88
  89 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  90         [0] = {
  91                 .hwport      = 0,
  92                 .flags       = 0,
  93                 .ucon        = 0x3c5,
  94                 .ulcon       = 0x03,
  95                 .ufcon       = 0x51,
  96         },
  97         [1] = {
  98                 .hwport      = 1,
  99                 .flags       = 0,
 100                 .ucon        = 0x245,
 101                 .ulcon       = 0x03,
 102                 .ufcon       = 0x00,
 103         },
 104         /* IR port */
 105         [2] = {
 106                 .hwport      = 2,
 107                 .flags       = 0,
 108                 .uart_flags  = UPF_CONS_FLOW,
 109                 .ucon        = 0x3c5,
 110                 .ulcon       = 0x43,
 111                 .ufcon       = 0x51,
 112         }
 113 };
 114
 115 /* Board control latch control */
 116
 117 static unsigned int latch_state;
 118
 119 static void h1940_latch_control(unsigned int clear, unsigned int set)
 120 {
 121         unsigned long flags;
 122
 123         local_irq_save(flags);
 124
 125         latch_state &= ~clear;
 126         latch_state |= set;
 127
 128         __raw_writel(latch_state, H1940_LATCH);
 129
 130         local_irq_restore(flags);
 131 }
 132
 133 static inline int h1940_gpiolib_to_latch(int offset)
 134 {
 135         return 1 << (offset + 16);
 136 }
 137
 138 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
 139                                         unsigned offset, int value)
 140 {
 141         int latch_bit = h1940_gpiolib_to_latch(offset);
 142
 143         h1940_latch_control(value ? 0 : latch_bit,
 144                 value ? latch_bit : 0);
 145 }
 146
 147 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
 148                                         unsigned offset, int value)
 149 {
 150         h1940_gpiolib_latch_set(chip, offset, value);
 151         return 0;
 152 }
 153
 154 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
 155                                         unsigned offset)
 156 {
 157         return (latch_state >> (offset + 16)) & 1;
 158 }
 159
 160 static struct gpio_chip h1940_latch_gpiochip = {
 161         .base                   = H1940_LATCH_GPIO(0),
 162         .owner                  = THIS_MODULE,
 163         .label                  = "H1940_LATCH",
 164         .ngpio                  = 16,
 165         .direction_output       = h1940_gpiolib_latch_output,
 166         .set                    = h1940_gpiolib_latch_set,
 167         .get                    = h1940_gpiolib_latch_get,
 168 };
 169
 170 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 171         .vbus_pin               = S3C2410_GPG(5),
 172         .vbus_pin_inverted      = 1,
 173         .pullup_pin             = H1940_LATCH_USB_DP,
 174 };
 175
 176 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 177                 .delay = 10000,
 178                 .presc = 49,
 179                 .oversampling_shift = 2,
 180                 .cfg_gpio = s3c24xx_ts_cfg_gpio,
 181 };
 182
 183 /**
 184  * Set lcd on or off
 185  **/
 186 static struct s3c2410fb_display h1940_lcd __initdata = {
 187         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 188                         S3C2410_LCDCON5_INVVLINE | \
 189                         S3C2410_LCDCON5_HWSWP,
 190
 191         .type =         S3C2410_LCDCON1_TFT,
 192         .width =        240,
 193         .height =       320,
 194         .pixclock =     260000,
 195         .xres =         240,
 196         .yres =         320,
 197         .bpp =          16,
 198         .left_margin =  8,
 199         .right_margin = 20,
 200         .hsync_len =    4,
 201         .upper_margin = 8,
 202         .lower_margin = 7,
 203         .vsync_len =    1,
 204 };
 205
 206 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 207         .displays = &h1940_lcd,
 208         .num_displays = 1,
 209         .default_display = 0,
 210
 211         .lpcsel =       0x02,
 212         .gpccon =       0xaa940659,
 213         .gpccon_mask =  0xffffc0f0,
 214         .gpcup =        0x0000ffff,
 215         .gpcup_mask =   0xffffffff,
 216         .gpdcon =       0xaa84aaa0,
 217         .gpdcon_mask =  0xffffffff,
 218         .gpdup =        0x0000faff,
 219         .gpdup_mask =   0xffffffff,
 220 };
 221
 222 static int power_supply_init(struct device *dev)
 223 {
 224         return gpio_request(S3C2410_GPF(2), "cable plugged");
 225 }
 226
 227 static int h1940_is_ac_online(void)
 228 {
 229         return !gpio_get_value(S3C2410_GPF(2));
 230 }
 231
 232 static void power_supply_exit(struct device *dev)
 233 {
 234         gpio_free(S3C2410_GPF(2));
 235 }
 236
 237 static char *h1940_supplicants[] = {
 238         "main-battery",
 239         "backup-battery",
 240 };
 241
 242 static struct pda_power_pdata power_supply_info = {
 243         .init                   = power_supply_init,
 244         .is_ac_online           = h1940_is_ac_online,
 245         .exit                   = power_supply_exit,
 246         .supplied_to            = h1940_supplicants,
 247         .num_supplicants        = ARRAY_SIZE(h1940_supplicants),
 248 };
 249
 250 static struct resource power_supply_resources[] = {
 251         [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 252                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 253 };
 254
 255 static struct platform_device power_supply = {
 256         .name           = "pda-power",
 257         .id             = -1,
 258         .dev            = {
 259                                 .platform_data =
 260                                         &power_supply_info,
 261         },
 262         .resource       = power_supply_resources,
 263         .num_resources  = ARRAY_SIZE(power_supply_resources),
 264 };
 265
 266 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 267         { .volt = 4070, .cur = 162, .level = 100},
 268         { .volt = 4040, .cur = 165, .level = 95},
 269         { .volt = 4016, .cur = 164, .level = 90},
 270         { .volt = 3996, .cur = 166, .level = 85},
 271         { .volt = 3971, .cur = 168, .level = 80},
 272         { .volt = 3951, .cur = 168, .level = 75},
 273         { .volt = 3931, .cur = 170, .level = 70},
 274         { .volt = 3903, .cur = 172, .level = 65},
 275         { .volt = 3886, .cur = 172, .level = 60},
 276         { .volt = 3858, .cur = 176, .level = 55},
 277         { .volt = 3842, .cur = 176, .level = 50},
 278         { .volt = 3818, .cur = 176, .level = 45},
 279         { .volt = 3789, .cur = 180, .level = 40},
 280         { .volt = 3769, .cur = 180, .level = 35},
 281         { .volt = 3749, .cur = 184, .level = 30},
 282         { .volt = 3732, .cur = 184, .level = 25},
 283         { .volt = 3716, .cur = 184, .level = 20},
 284         { .volt = 3708, .cur = 184, .level = 15},
 285         { .volt = 3716, .cur = 96, .level = 10},
 286         { .volt = 3700, .cur = 96, .level = 5},
 287         { .volt = 3684, .cur = 96, .level = 0},
 288 };
 289
 290 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 291         { .volt = 4130, .cur = 0, .level = 100},
 292         { .volt = 3982, .cur = 0, .level = 50},
 293         { .volt = 3854, .cur = 0, .level = 10},
 294         { .volt = 3841, .cur = 0, .level = 0},
 295 };
 296
 297 static int h1940_bat_init(void)
 298 {
 299         int ret;
 300
 301         ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
 302         if (ret)
 303                 return ret;
 304         gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
 305
 306         return 0;
 307
 308 }
 309
 310 static void h1940_bat_exit(void)
 311 {
 312         gpio_free(H1940_LATCH_SM803_ENABLE);
 313 }
 314
 315 static void h1940_enable_charger(void)
 316 {
 317         gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
 318 }
 319
 320 static void h1940_disable_charger(void)
 321 {
 322         gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
 323 }
 324
 325 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
 326         .init = h1940_bat_init,
 327         .exit = h1940_bat_exit,
 328         .enable_charger = h1940_enable_charger,
 329         .disable_charger = h1940_disable_charger,
 330         .gpio_charge_finished = S3C2410_GPF(3),
 331         .gpio_inverted = 1,
 332         .lut_noac = bat_lut_noac,
 333         .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 334         .lut_acin = bat_lut_acin,
 335         .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 336         .volt_channel = 0,
 337         .current_channel = 1,
 338         .volt_mult = 4056,
 339         .current_mult = 1893,
 340         .internal_impedance = 200,
 341         .backup_volt_channel = 3,
 342         /* TODO Check backup volt multiplier */
 343         .backup_volt_mult = 4056,
 344         .backup_volt_min = 0,
 345         .backup_volt_max = 4149288
 346 };
 347
 348 static struct platform_device h1940_battery = {
 349         .name             = "s3c-adc-battery",
 350         .id               = -1,
 351         .dev = {
 352                 .parent = &s3c_device_adc.dev,
 353                 .platform_data = &h1940_bat_cfg,
 354         },
 355 };
 356
 357 static DEFINE_SPINLOCK(h1940_blink_spin);
 358
 359 int h1940_led_blink_set(unsigned gpio, int state,
 360         unsigned long *delay_on, unsigned long *delay_off)
 361 {
 362         int blink_gpio, check_gpio1, check_gpio2;
 363
 364         switch (gpio) {
 365         case H1940_LATCH_LED_GREEN:
 366                 blink_gpio = S3C2410_GPA(7);
 367                 check_gpio1 = S3C2410_GPA(1);
 368                 check_gpio2 = S3C2410_GPA(3);
 369                 break;
 370         case H1940_LATCH_LED_RED:
 371                 blink_gpio = S3C2410_GPA(1);
 372                 check_gpio1 = S3C2410_GPA(7);
 373                 check_gpio2 = S3C2410_GPA(3);
 374                 break;
 375         default:
 376                 blink_gpio = S3C2410_GPA(3);
 377                 check_gpio1 = S3C2410_GPA(1);
 378                 check_gpio2 = S3C2410_GPA(7);
 379                 break;
 380         }
 381
 382         if (delay_on && delay_off && !*delay_on && !*delay_off)
 383                 *delay_on = *delay_off = 500;
 384
 385         spin_lock(&h1940_blink_spin);
 386
 387         switch (state) {
 388         case GPIO_LED_NO_BLINK_LOW:
 389         case GPIO_LED_NO_BLINK_HIGH:
 390                 if (!gpio_get_value(check_gpio1) &&
 391                     !gpio_get_value(check_gpio2))
 392                         gpio_set_value(H1940_LATCH_LED_FLASH, 0);
 393                 gpio_set_value(blink_gpio, 0);
 394                 if (gpio_is_valid(gpio))
 395                         gpio_set_value(gpio, state);
 396                 break;
 397         case GPIO_LED_BLINK:
 398                 if (gpio_is_valid(gpio))
 399                         gpio_set_value(gpio, 0);
 400                 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
 401                 gpio_set_value(blink_gpio, 1);
 402                 break;
 403         }
 404
 405         spin_unlock(&h1940_blink_spin);
 406
 407         return 0;
 408 }
 409 EXPORT_SYMBOL(h1940_led_blink_set);
 410
 411 static struct gpio_led h1940_leds_desc[] = {
 412         {
 413                 .name                   = "Green",
 414                 .default_trigger        = "main-battery-full",
 415                 .gpio                   = H1940_LATCH_LED_GREEN,
 416                 .retain_state_suspended = 1,
 417         },
 418         {
 419                 .name                   = "Red",
 420                 .default_trigger
 421                         = "main-battery-charging-blink-full-solid",
 422                 .gpio                   = H1940_LATCH_LED_RED,
 423                 .retain_state_suspended = 1,
 424         },
 425 };
 426
 427 static struct gpio_led_platform_data h1940_leds_pdata = {
 428         .num_leds       = ARRAY_SIZE(h1940_leds_desc),
 429         .leds           = h1940_leds_desc,
 430         .gpio_blink_set = h1940_led_blink_set,
 431 };
 432
 433 static struct platform_device h1940_device_leds = {
 434         .name   = "leds-gpio",
 435         .id     = -1,
 436         .dev    = {
 437                         .platform_data = &h1940_leds_pdata,
 438         },
 439 };
 440
 441 static struct platform_device h1940_device_bluetooth = {
 442         .name             = "h1940-bt",
 443         .id               = -1,
 444 };
 445
 446 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 447 {
 448         switch (power_mode) {
 449         case MMC_POWER_OFF:
 450                 gpio_set_value(H1940_LATCH_SD_POWER, 0);
 451                 break;
 452         case MMC_POWER_UP:
 453         case MMC_POWER_ON:
 454                 gpio_set_value(H1940_LATCH_SD_POWER, 1);
 455                 break;
 456         default:
 457                 break;
 458         }
 459 }
 460
 461 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
 462         .gpio_detect   = S3C2410_GPF(5),
 463         .gpio_wprotect = S3C2410_GPH(8),
 464         .set_power     = h1940_set_mmc_power,
 465         .ocr_avail     = MMC_VDD_32_33,
 466 };
 467
 468 static int h1940_backlight_init(struct device *dev)
 469 {
 470         gpio_request(S3C2410_GPB(0), "Backlight");
 471
 472         gpio_direction_output(S3C2410_GPB(0), 0);
 473         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 474         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 475         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 476
 477         return 0;
 478 }
 479
 480 static int h1940_backlight_notify(struct device *dev, int brightness)
 481 {
 482         if (!brightness) {
 483                 gpio_direction_output(S3C2410_GPB(0), 1);
 484                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 485         } else {
 486                 gpio_direction_output(S3C2410_GPB(0), 0);
 487                 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 488                 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 489                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 490         }
 491         return brightness;
 492 }
 493
 494 static void h1940_backlight_exit(struct device *dev)
 495 {
 496         gpio_direction_output(S3C2410_GPB(0), 1);
 497         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 498 }
 499
 500
 501 static struct platform_pwm_backlight_data backlight_data = {
 502         .pwm_id         = 0,
 503         .max_brightness = 100,
 504         .dft_brightness = 50,
 505         /* tcnt = 0x31 */
 506         .pwm_period_ns  = 36296,
 507         .enable_gpio    = -1,
 508         .init           = h1940_backlight_init,
 509         .notify         = h1940_backlight_notify,
 510         .exit           = h1940_backlight_exit,
 511 };
 512
 513 static struct platform_device h1940_backlight = {
 514         .name = "pwm-backlight",
 515         .dev  = {
 516                 .parent = &samsung_device_pwm.dev,
 517                 .platform_data = &backlight_data,
 518         },
 519         .id   = -1,
 520 };
 521
 522 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 523                                         unsigned int power)
 524 {
 525         int value, retries = 100;
 526
 527         if (!power) {
 528                 gpio_set_value(S3C2410_GPC(0), 0);
 529                 /* wait for 3ac */
 530                 do {
 531                         value = gpio_get_value(S3C2410_GPC(6));
 532                 } while (value && retries--);
 533
 534                 gpio_set_value(H1940_LATCH_LCD_P2, 0);
 535                 gpio_set_value(H1940_LATCH_LCD_P3, 0);
 536                 gpio_set_value(H1940_LATCH_LCD_P4, 0);
 537
 538                 gpio_direction_output(S3C2410_GPC(1), 0);
 539                 gpio_direction_output(S3C2410_GPC(4), 0);
 540
 541                 gpio_set_value(H1940_LATCH_LCD_P1, 0);
 542                 gpio_set_value(H1940_LATCH_LCD_P0, 0);
 543
 544                 gpio_set_value(S3C2410_GPC(5), 0);
 545
 546         } else {
 547                 gpio_set_value(H1940_LATCH_LCD_P0, 1);
 548                 gpio_set_value(H1940_LATCH_LCD_P1, 1);
 549
 550                 gpio_direction_input(S3C2410_GPC(1));
 551                 gpio_direction_input(S3C2410_GPC(4));
 552                 mdelay(10);
 553                 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 554                 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
 555
 556                 gpio_set_value(S3C2410_GPC(5), 1);
 557                 gpio_set_value(S3C2410_GPC(0), 1);
 558
 559                 gpio_set_value(H1940_LATCH_LCD_P3, 1);
 560                 gpio_set_value(H1940_LATCH_LCD_P2, 1);
 561                 gpio_set_value(H1940_LATCH_LCD_P4, 1);
 562         }
 563 }
 564
 565 static struct plat_lcd_data h1940_lcd_power_data = {
 566         .set_power      = h1940_lcd_power_set,
 567 };
 568
 569 static struct platform_device h1940_lcd_powerdev = {
 570         .name                   = "platform-lcd",
 571         .dev.parent             = &s3c_device_lcd.dev,
 572         .dev.platform_data      = &h1940_lcd_power_data,
 573 };
 574
 575 static struct uda1380_platform_data uda1380_info = {
 576         .gpio_power     = H1940_LATCH_UDA_POWER,
 577         .gpio_reset     = S3C2410_GPA(12),
 578         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 579 };
 580
 581 static struct i2c_board_info h1940_i2c_devices[] = {
 582         {
 583                 I2C_BOARD_INFO("uda1380", 0x1a),
 584                 .platform_data = &uda1380_info,
 585         },
 586 };
 587
 588 #define DECLARE_BUTTON(p, k, n, w)      \
 589         {                               \
 590                 .gpio           = p,    \
 591                 .code           = k,    \
 592                 .desc           = n,    \
 593                 .wakeup         = w,    \
 594                 .active_low     = 1,    \
 595         }
 596
 597 static struct gpio_keys_button h1940_buttons[] = {
 598         DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 599         DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 600         DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 601         DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 602         DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 603         DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 604         DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 605         DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 606         DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 607         DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 608         DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 609 };
 610
 611 static struct gpio_keys_platform_data h1940_buttons_data = {
 612         .buttons        = h1940_buttons,
 613         .nbuttons       = ARRAY_SIZE(h1940_buttons),
 614 };
 615
 616 static struct platform_device h1940_dev_buttons = {
 617         .name           = "gpio-keys",
 618         .id             = -1,
 619         .dev            = {
 620                 .platform_data  = &h1940_buttons_data,
 621         }
 622 };
 623
 624 static struct platform_device *h1940_devices[] __initdata = {
 625         &h1940_dev_buttons,
 626         &s3c_device_ohci,
 627         &s3c_device_lcd,
 628         &s3c_device_wdt,
 629         &s3c_device_i2c0,
 630         &s3c_device_iis,
 631         &s3c_device_usbgadget,
 632         &h1940_device_leds,
 633         &h1940_device_bluetooth,
 634         &s3c_device_sdi,
 635         &s3c_device_rtc,
 636         &samsung_device_pwm,
 637         &h1940_backlight,
 638         &h1940_lcd_powerdev,
 639         &s3c_device_adc,
 640         &s3c_device_ts,
 641         &power_supply,
 642         &h1940_battery,
 643 };
 644
 645 static void __init h1940_map_io(void)
 646 {
 647         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 648         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 649         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 650
 651         /* setup PM */
 652
 653 #ifdef CONFIG_PM_H1940
 654         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 655 #endif
 656         s3c_pm_init();
 657
 658         /* Add latch gpio chip, set latch initial value */
 659         h1940_latch_control(0, 0);
 660         WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
 661 }
 662
 663 static void __init h1940_init_time(void)
 664 {
 665         s3c2410_init_clocks(12000000);
 666         samsung_timer_init();
 667 }
 668
 669 /* H1940 and RX3715 need to reserve this for suspend */
 670 static void __init h1940_reserve(void)
 671 {
 672         memblock_reserve(0x30003000, 0x1000);
 673         memblock_reserve(0x30081000, 0x1000);
 674 }
 675
 676 static void __init h1940_init(void)
 677 {
 678         u32 tmp;
 679
 680         s3c24xx_fb_set_platdata(&h1940_fb_info);
 681         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 682         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 683         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 684         s3c_i2c0_set_platdata(NULL);
 685
 686         /* Turn off suspend on both USB ports, and switch the
 687          * selectable USB port to USB device mode. */
 688
 689         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 690                               S3C2410_MISCCR_USBSUSPND0 |
 691                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 692
 693         tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
 694               | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
 695               | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
 696         writel(tmp, S3C2410_UPLLCON);
 697
 698         gpio_request(S3C2410_GPC(0), "LCD power");
 699         gpio_request(S3C2410_GPC(1), "LCD power");
 700         gpio_request(S3C2410_GPC(4), "LCD power");
 701         gpio_request(S3C2410_GPC(5), "LCD power");
 702         gpio_request(S3C2410_GPC(6), "LCD power");
 703         gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 704         gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 705         gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 706         gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 707         gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 708         gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 709         gpio_direction_output(S3C2410_GPC(0), 0);
 710         gpio_direction_output(S3C2410_GPC(1), 0);
 711         gpio_direction_output(S3C2410_GPC(4), 0);
 712         gpio_direction_output(S3C2410_GPC(5), 0);
 713         gpio_direction_input(S3C2410_GPC(6));
 714         gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 715         gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 716         gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 717         gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 718         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 719         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 720
 721         gpio_request(H1940_LATCH_SD_POWER, "SD power");
 722         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 723
 724         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 725
 726         gpio_request(S3C2410_GPA(1), "Red LED blink");
 727         gpio_request(S3C2410_GPA(3), "Blue LED blink");
 728         gpio_request(S3C2410_GPA(7), "Green LED blink");
 729         gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 730         gpio_direction_output(S3C2410_GPA(1), 0);
 731         gpio_direction_output(S3C2410_GPA(3), 0);
 732         gpio_direction_output(S3C2410_GPA(7), 0);
 733         gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
 734
 735         i2c_register_board_info(0, h1940_i2c_devices,
 736                 ARRAY_SIZE(h1940_i2c_devices));
 737 }
 738
 739 MACHINE_START(H1940, "IPAQ-H1940")
 740         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 741         .atag_offset    = 0x100,
 742         .map_io         = h1940_map_io,
 743         .reserve        = h1940_reserve,
 744         .init_irq       = s3c2410_init_irq,
 745         .init_machine   = h1940_init,
 746         .init_time      = h1940_init_time,
 747         .restart        = s3c2410_restart,
 748 MACHINE_END