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.h>
  29 #include <linux/pwm_backlight.h>
  30 #include <linux/i2c.h>
  31 #include <linux/leds.h>
  32 #include <linux/pda_power.h>
  33 #include <linux/s3c_adc_battery.h>
  34 #include <linux/delay.h>
  35
  36 #include <video/platform_lcd.h>
  37
  38 #include <linux/mmc/host.h>
  39 #include <linux/export.h>
  40
  41 #include <asm/irq.h>
  42 #include <asm/mach-types.h>
  43 #include <asm/mach/arch.h>
  44 #include <asm/mach/map.h>
  45 #include <asm/mach/irq.h>
  46
  47 #include <linux/platform_data/i2c-s3c2410.h>
  48 #include <linux/platform_data/mmc-s3cmci.h>
  49 #include <linux/platform_data/touchscreen-s3c2410.h>
  50 #include <linux/platform_data/usb-s3c2410_udc.h>
  51
  52 #include <sound/uda1380.h>
  53
  54 #include <mach/fb.h>
  55 #include <mach/hardware.h>
  56 #include <mach/regs-clock.h>
  57 #include <mach/regs-gpio.h>
  58 #include <mach/regs-lcd.h>
  59 #include <mach/gpio-samsung.h>
  60
  61 #include <plat/cpu.h>
  62 #include <plat/devs.h>
  63 #include <plat/gpio-cfg.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 #define S3C24XX_PLL_MDIV_SHIFT         (12)
  77 #define S3C24XX_PLL_PDIV_SHIFT         (4)
  78 #define S3C24XX_PLL_SDIV_SHIFT         (0)
  79
  80 static struct map_desc h1940_iodesc[] __initdata = {
  81         [0] = {
  82                 .virtual        = (unsigned long)H1940_LATCH,
  83                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  84                 .length         = SZ_16K,
  85                 .type           = MT_DEVICE
  86         },
  87 };
  88
  89 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  90 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  91 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  92
  93 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  94         [0] = {
  95                 .hwport      = 0,
  96                 .flags       = 0,
  97                 .ucon        = 0x3c5,
  98                 .ulcon       = 0x03,
  99                 .ufcon       = 0x51,
 100         },
 101         [1] = {
 102                 .hwport      = 1,
 103                 .flags       = 0,
 104                 .ucon        = 0x245,
 105                 .ulcon       = 0x03,
 106                 .ufcon       = 0x00,
 107         },
 108         /* IR port */
 109         [2] = {
 110                 .hwport      = 2,
 111                 .flags       = 0,
 112                 .uart_flags  = UPF_CONS_FLOW,
 113                 .ucon        = 0x3c5,
 114                 .ulcon       = 0x43,
 115                 .ufcon       = 0x51,
 116         }
 117 };
 118
 119 /* Board control latch control */
 120
 121 static unsigned int latch_state;
 122
 123 static void h1940_latch_control(unsigned int clear, unsigned int set)
 124 {
 125         unsigned long flags;
 126
 127         local_irq_save(flags);
 128
 129         latch_state &= ~clear;
 130         latch_state |= set;
 131
 132         __raw_writel(latch_state, H1940_LATCH);
 133
 134         local_irq_restore(flags);
 135 }
 136
 137 static inline int h1940_gpiolib_to_latch(int offset)
 138 {
 139         return 1 << (offset + 16);
 140 }
 141
 142 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
 143                                         unsigned offset, int value)
 144 {
 145         int latch_bit = h1940_gpiolib_to_latch(offset);
 146
 147         h1940_latch_control(value ? 0 : latch_bit,
 148                 value ? latch_bit : 0);
 149 }
 150
 151 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
 152                                         unsigned offset, int value)
 153 {
 154         h1940_gpiolib_latch_set(chip, offset, value);
 155         return 0;
 156 }
 157
 158 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
 159                                         unsigned offset)
 160 {
 161         return (latch_state >> (offset + 16)) & 1;
 162 }
 163
 164 static struct gpio_chip h1940_latch_gpiochip = {
 165         .base                   = H1940_LATCH_GPIO(0),
 166         .owner                  = THIS_MODULE,
 167         .label                  = "H1940_LATCH",
 168         .ngpio                  = 16,
 169         .direction_output       = h1940_gpiolib_latch_output,
 170         .set                    = h1940_gpiolib_latch_set,
 171         .get                    = h1940_gpiolib_latch_get,
 172 };
 173
 174 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 175         .vbus_pin               = S3C2410_GPG(5),
 176         .vbus_pin_inverted      = 1,
 177         .pullup_pin             = H1940_LATCH_USB_DP,
 178 };
 179
 180 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 181                 .delay = 10000,
 182                 .presc = 49,
 183                 .oversampling_shift = 2,
 184                 .cfg_gpio = s3c24xx_ts_cfg_gpio,
 185 };
 186
 187 /**
 188  * Set lcd on or off
 189  **/
 190 static struct s3c2410fb_display h1940_lcd __initdata = {
 191         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 192                         S3C2410_LCDCON5_INVVLINE | \
 193                         S3C2410_LCDCON5_HWSWP,
 194
 195         .type =         S3C2410_LCDCON1_TFT,
 196         .width =        240,
 197         .height =       320,
 198         .pixclock =     260000,
 199         .xres =         240,
 200         .yres =         320,
 201         .bpp =          16,
 202         .left_margin =  8,
 203         .right_margin = 20,
 204         .hsync_len =    4,
 205         .upper_margin = 8,
 206         .lower_margin = 7,
 207         .vsync_len =    1,
 208 };
 209
 210 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 211         .displays = &h1940_lcd,
 212         .num_displays = 1,
 213         .default_display = 0,
 214
 215         .lpcsel =       0x02,
 216         .gpccon =       0xaa940659,
 217         .gpccon_mask =  0xffffc0f0,
 218         .gpcup =        0x0000ffff,
 219         .gpcup_mask =   0xffffffff,
 220         .gpdcon =       0xaa84aaa0,
 221         .gpdcon_mask =  0xffffffff,
 222         .gpdup =        0x0000faff,
 223         .gpdup_mask =   0xffffffff,
 224 };
 225
 226 static int power_supply_init(struct device *dev)
 227 {
 228         return gpio_request(S3C2410_GPF(2), "cable plugged");
 229 }
 230
 231 static int h1940_is_ac_online(void)
 232 {
 233         return !gpio_get_value(S3C2410_GPF(2));
 234 }
 235
 236 static void power_supply_exit(struct device *dev)
 237 {
 238         gpio_free(S3C2410_GPF(2));
 239 }
 240
 241 static char *h1940_supplicants[] = {
 242         "main-battery",
 243         "backup-battery",
 244 };
 245
 246 static struct pda_power_pdata power_supply_info = {
 247         .init                   = power_supply_init,
 248         .is_ac_online           = h1940_is_ac_online,
 249         .exit                   = power_supply_exit,
 250         .supplied_to            = h1940_supplicants,
 251         .num_supplicants        = ARRAY_SIZE(h1940_supplicants),
 252 };
 253
 254 static struct resource power_supply_resources[] = {
 255         [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 256                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 257 };
 258
 259 static struct platform_device power_supply = {
 260         .name           = "pda-power",
 261         .id             = -1,
 262         .dev            = {
 263                                 .platform_data =
 264                                         &power_supply_info,
 265         },
 266         .resource       = power_supply_resources,
 267         .num_resources  = ARRAY_SIZE(power_supply_resources),
 268 };
 269
 270 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 271         { .volt = 4070, .cur = 162, .level = 100},
 272         { .volt = 4040, .cur = 165, .level = 95},
 273         { .volt = 4016, .cur = 164, .level = 90},
 274         { .volt = 3996, .cur = 166, .level = 85},
 275         { .volt = 3971, .cur = 168, .level = 80},
 276         { .volt = 3951, .cur = 168, .level = 75},
 277         { .volt = 3931, .cur = 170, .level = 70},
 278         { .volt = 3903, .cur = 172, .level = 65},
 279         { .volt = 3886, .cur = 172, .level = 60},
 280         { .volt = 3858, .cur = 176, .level = 55},
 281         { .volt = 3842, .cur = 176, .level = 50},
 282         { .volt = 3818, .cur = 176, .level = 45},
 283         { .volt = 3789, .cur = 180, .level = 40},
 284         { .volt = 3769, .cur = 180, .level = 35},
 285         { .volt = 3749, .cur = 184, .level = 30},
 286         { .volt = 3732, .cur = 184, .level = 25},
 287         { .volt = 3716, .cur = 184, .level = 20},
 288         { .volt = 3708, .cur = 184, .level = 15},
 289         { .volt = 3716, .cur = 96, .level = 10},
 290         { .volt = 3700, .cur = 96, .level = 5},
 291         { .volt = 3684, .cur = 96, .level = 0},
 292 };
 293
 294 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 295         { .volt = 4130, .cur = 0, .level = 100},
 296         { .volt = 3982, .cur = 0, .level = 50},
 297         { .volt = 3854, .cur = 0, .level = 10},
 298         { .volt = 3841, .cur = 0, .level = 0},
 299 };
 300
 301 static int h1940_bat_init(void)
 302 {
 303         int ret;
 304
 305         ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
 306         if (ret)
 307                 return ret;
 308         gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
 309
 310         return 0;
 311
 312 }
 313
 314 static void h1940_bat_exit(void)
 315 {
 316         gpio_free(H1940_LATCH_SM803_ENABLE);
 317 }
 318
 319 static void h1940_enable_charger(void)
 320 {
 321         gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
 322 }
 323
 324 static void h1940_disable_charger(void)
 325 {
 326         gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
 327 }
 328
 329 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
 330         .init = h1940_bat_init,
 331         .exit = h1940_bat_exit,
 332         .enable_charger = h1940_enable_charger,
 333         .disable_charger = h1940_disable_charger,
 334         .gpio_charge_finished = S3C2410_GPF(3),
 335         .gpio_inverted = 1,
 336         .lut_noac = bat_lut_noac,
 337         .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 338         .lut_acin = bat_lut_acin,
 339         .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 340         .volt_channel = 0,
 341         .current_channel = 1,
 342         .volt_mult = 4056,
 343         .current_mult = 1893,
 344         .internal_impedance = 200,
 345         .backup_volt_channel = 3,
 346         /* TODO Check backup volt multiplier */
 347         .backup_volt_mult = 4056,
 348         .backup_volt_min = 0,
 349         .backup_volt_max = 4149288
 350 };
 351
 352 static struct platform_device h1940_battery = {
 353         .name             = "s3c-adc-battery",
 354         .id               = -1,
 355         .dev = {
 356                 .parent = &s3c_device_adc.dev,
 357                 .platform_data = &h1940_bat_cfg,
 358         },
 359 };
 360
 361 static DEFINE_SPINLOCK(h1940_blink_spin);
 362
 363 int h1940_led_blink_set(struct gpio_desc *desc, int state,
 364         unsigned long *delay_on, unsigned long *delay_off)
 365 {
 366         int blink_gpio, check_gpio1, check_gpio2;
 367         int gpio = desc ? desc_to_gpio(desc) : -EINVAL;
 368
 369         switch (gpio) {
 370         case H1940_LATCH_LED_GREEN:
 371                 blink_gpio = S3C2410_GPA(7);
 372                 check_gpio1 = S3C2410_GPA(1);
 373                 check_gpio2 = S3C2410_GPA(3);
 374                 break;
 375         case H1940_LATCH_LED_RED:
 376                 blink_gpio = S3C2410_GPA(1);
 377                 check_gpio1 = S3C2410_GPA(7);
 378                 check_gpio2 = S3C2410_GPA(3);
 379                 break;
 380         default:
 381                 blink_gpio = S3C2410_GPA(3);
 382                 check_gpio1 = S3C2410_GPA(1);
 383                 check_gpio2 = S3C2410_GPA(7);
 384                 break;
 385         }
 386
 387         if (delay_on && delay_off && !*delay_on && !*delay_off)
 388                 *delay_on = *delay_off = 500;
 389
 390         spin_lock(&h1940_blink_spin);
 391
 392         switch (state) {
 393         case GPIO_LED_NO_BLINK_LOW:
 394         case GPIO_LED_NO_BLINK_HIGH:
 395                 if (!gpio_get_value(check_gpio1) &&
 396                     !gpio_get_value(check_gpio2))
 397                         gpio_set_value(H1940_LATCH_LED_FLASH, 0);
 398                 gpio_set_value(blink_gpio, 0);
 399                 if (gpio_is_valid(gpio))
 400                         gpio_set_value(gpio, state);
 401                 break;
 402         case GPIO_LED_BLINK:
 403                 if (gpio_is_valid(gpio))
 404                         gpio_set_value(gpio, 0);
 405                 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
 406                 gpio_set_value(blink_gpio, 1);
 407                 break;
 408         }
 409
 410         spin_unlock(&h1940_blink_spin);
 411
 412         return 0;
 413 }
 414 EXPORT_SYMBOL(h1940_led_blink_set);
 415
 416 static struct gpio_led h1940_leds_desc[] = {
 417         {
 418                 .name                   = "Green",
 419                 .default_trigger        = "main-battery-full",
 420                 .gpio                   = H1940_LATCH_LED_GREEN,
 421                 .retain_state_suspended = 1,
 422         },
 423         {
 424                 .name                   = "Red",
 425                 .default_trigger
 426                         = "main-battery-charging-blink-full-solid",
 427                 .gpio                   = H1940_LATCH_LED_RED,
 428                 .retain_state_suspended = 1,
 429         },
 430 };
 431
 432 static struct gpio_led_platform_data h1940_leds_pdata = {
 433         .num_leds       = ARRAY_SIZE(h1940_leds_desc),
 434         .leds           = h1940_leds_desc,
 435         .gpio_blink_set = h1940_led_blink_set,
 436 };
 437
 438 static struct platform_device h1940_device_leds = {
 439         .name   = "leds-gpio",
 440         .id     = -1,
 441         .dev    = {
 442                         .platform_data = &h1940_leds_pdata,
 443         },
 444 };
 445
 446 static struct platform_device h1940_device_bluetooth = {
 447         .name             = "h1940-bt",
 448         .id               = -1,
 449 };
 450
 451 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 452 {
 453         switch (power_mode) {
 454         case MMC_POWER_OFF:
 455                 gpio_set_value(H1940_LATCH_SD_POWER, 0);
 456                 break;
 457         case MMC_POWER_UP:
 458         case MMC_POWER_ON:
 459                 gpio_set_value(H1940_LATCH_SD_POWER, 1);
 460                 break;
 461         default:
 462                 break;
 463         }
 464 }
 465
 466 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
 467         .gpio_detect   = S3C2410_GPF(5),
 468         .gpio_wprotect = S3C2410_GPH(8),
 469         .set_power     = h1940_set_mmc_power,
 470         .ocr_avail     = MMC_VDD_32_33,
 471 };
 472
 473 static struct pwm_lookup h1940_pwm_lookup[] = {
 474         PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
 475                    PWM_POLARITY_NORMAL),
 476 };
 477
 478 static int h1940_backlight_init(struct device *dev)
 479 {
 480         gpio_request(S3C2410_GPB(0), "Backlight");
 481
 482         gpio_direction_output(S3C2410_GPB(0), 0);
 483         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 484         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 485         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 486
 487         return 0;
 488 }
 489
 490 static int h1940_backlight_notify(struct device *dev, int brightness)
 491 {
 492         if (!brightness) {
 493                 gpio_direction_output(S3C2410_GPB(0), 1);
 494                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 495         } else {
 496                 gpio_direction_output(S3C2410_GPB(0), 0);
 497                 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 498                 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 499                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 500         }
 501         return brightness;
 502 }
 503
 504 static void h1940_backlight_exit(struct device *dev)
 505 {
 506         gpio_direction_output(S3C2410_GPB(0), 1);
 507         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 508 }
 509
 510
 511 static struct platform_pwm_backlight_data backlight_data = {
 512         .max_brightness = 100,
 513         .dft_brightness = 50,
 514         .enable_gpio    = -1,
 515         .init           = h1940_backlight_init,
 516         .notify         = h1940_backlight_notify,
 517         .exit           = h1940_backlight_exit,
 518 };
 519
 520 static struct platform_device h1940_backlight = {
 521         .name = "pwm-backlight",
 522         .dev  = {
 523                 .parent = &samsung_device_pwm.dev,
 524                 .platform_data = &backlight_data,
 525         },
 526         .id   = -1,
 527 };
 528
 529 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 530                                         unsigned int power)
 531 {
 532         int value, retries = 100;
 533
 534         if (!power) {
 535                 gpio_set_value(S3C2410_GPC(0), 0);
 536                 /* wait for 3ac */
 537                 do {
 538                         value = gpio_get_value(S3C2410_GPC(6));
 539                 } while (value && retries--);
 540
 541                 gpio_set_value(H1940_LATCH_LCD_P2, 0);
 542                 gpio_set_value(H1940_LATCH_LCD_P3, 0);
 543                 gpio_set_value(H1940_LATCH_LCD_P4, 0);
 544
 545                 gpio_direction_output(S3C2410_GPC(1), 0);
 546                 gpio_direction_output(S3C2410_GPC(4), 0);
 547
 548                 gpio_set_value(H1940_LATCH_LCD_P1, 0);
 549                 gpio_set_value(H1940_LATCH_LCD_P0, 0);
 550
 551                 gpio_set_value(S3C2410_GPC(5), 0);
 552
 553         } else {
 554                 gpio_set_value(H1940_LATCH_LCD_P0, 1);
 555                 gpio_set_value(H1940_LATCH_LCD_P1, 1);
 556
 557                 gpio_direction_input(S3C2410_GPC(1));
 558                 gpio_direction_input(S3C2410_GPC(4));
 559                 mdelay(10);
 560                 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 561                 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
 562
 563                 gpio_set_value(S3C2410_GPC(5), 1);
 564                 gpio_set_value(S3C2410_GPC(0), 1);
 565
 566                 gpio_set_value(H1940_LATCH_LCD_P3, 1);
 567                 gpio_set_value(H1940_LATCH_LCD_P2, 1);
 568                 gpio_set_value(H1940_LATCH_LCD_P4, 1);
 569         }
 570 }
 571
 572 static struct plat_lcd_data h1940_lcd_power_data = {
 573         .set_power      = h1940_lcd_power_set,
 574 };
 575
 576 static struct platform_device h1940_lcd_powerdev = {
 577         .name                   = "platform-lcd",
 578         .dev.parent             = &s3c_device_lcd.dev,
 579         .dev.platform_data      = &h1940_lcd_power_data,
 580 };
 581
 582 static struct uda1380_platform_data uda1380_info = {
 583         .gpio_power     = H1940_LATCH_UDA_POWER,
 584         .gpio_reset     = S3C2410_GPA(12),
 585         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 586 };
 587
 588 static struct i2c_board_info h1940_i2c_devices[] = {
 589         {
 590                 I2C_BOARD_INFO("uda1380", 0x1a),
 591                 .platform_data = &uda1380_info,
 592         },
 593 };
 594
 595 #define DECLARE_BUTTON(p, k, n, w)      \
 596         {                               \
 597                 .gpio           = p,    \
 598                 .code           = k,    \
 599                 .desc           = n,    \
 600                 .wakeup         = w,    \
 601                 .active_low     = 1,    \
 602         }
 603
 604 static struct gpio_keys_button h1940_buttons[] = {
 605         DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 606         DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 607         DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 608         DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 609         DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 610         DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 611         DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 612         DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 613         DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 614         DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 615         DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 616 };
 617
 618 static struct gpio_keys_platform_data h1940_buttons_data = {
 619         .buttons        = h1940_buttons,
 620         .nbuttons       = ARRAY_SIZE(h1940_buttons),
 621 };
 622
 623 static struct platform_device h1940_dev_buttons = {
 624         .name           = "gpio-keys",
 625         .id             = -1,
 626         .dev            = {
 627                 .platform_data  = &h1940_buttons_data,
 628         }
 629 };
 630
 631 static struct platform_device *h1940_devices[] __initdata = {
 632         &h1940_dev_buttons,
 633         &s3c_device_ohci,
 634         &s3c_device_lcd,
 635         &s3c_device_wdt,
 636         &s3c_device_i2c0,
 637         &s3c_device_iis,
 638         &s3c_device_usbgadget,
 639         &h1940_device_leds,
 640         &h1940_device_bluetooth,
 641         &s3c_device_sdi,
 642         &s3c_device_rtc,
 643         &samsung_device_pwm,
 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_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 656         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 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 static void __init h1940_init_time(void)
 671 {
 672         s3c2410_init_clocks(12000000);
 673         samsung_timer_init();
 674 }
 675
 676 /* H1940 and RX3715 need to reserve this for suspend */
 677 static void __init h1940_reserve(void)
 678 {
 679         memblock_reserve(0x30003000, 0x1000);
 680         memblock_reserve(0x30081000, 0x1000);
 681 }
 682
 683 static void __init h1940_init(void)
 684 {
 685         u32 tmp;
 686
 687         s3c24xx_fb_set_platdata(&h1940_fb_info);
 688         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 689         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 690         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 691         s3c_i2c0_set_platdata(NULL);
 692
 693         /* Turn off suspend on both USB ports, and switch the
 694          * selectable USB port to USB device mode. */
 695
 696         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 697                               S3C2410_MISCCR_USBSUSPND0 |
 698                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 699
 700         tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
 701               | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
 702               | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
 703         writel(tmp, S3C2410_UPLLCON);
 704
 705         gpio_request(S3C2410_GPC(0), "LCD power");
 706         gpio_request(S3C2410_GPC(1), "LCD power");
 707         gpio_request(S3C2410_GPC(4), "LCD power");
 708         gpio_request(S3C2410_GPC(5), "LCD power");
 709         gpio_request(S3C2410_GPC(6), "LCD power");
 710         gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 711         gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 712         gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 713         gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 714         gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 715         gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 716         gpio_direction_output(S3C2410_GPC(0), 0);
 717         gpio_direction_output(S3C2410_GPC(1), 0);
 718         gpio_direction_output(S3C2410_GPC(4), 0);
 719         gpio_direction_output(S3C2410_GPC(5), 0);
 720         gpio_direction_input(S3C2410_GPC(6));
 721         gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 722         gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 723         gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 724         gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 725         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 726         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 727
 728         gpio_request(H1940_LATCH_SD_POWER, "SD power");
 729         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 730
 731         pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
 732         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 733
 734         gpio_request(S3C2410_GPA(1), "Red LED blink");
 735         gpio_request(S3C2410_GPA(3), "Blue LED blink");
 736         gpio_request(S3C2410_GPA(7), "Green LED blink");
 737         gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 738         gpio_direction_output(S3C2410_GPA(1), 0);
 739         gpio_direction_output(S3C2410_GPA(3), 0);
 740         gpio_direction_output(S3C2410_GPA(7), 0);
 741         gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
 742
 743         i2c_register_board_info(0, h1940_i2c_devices,
 744                 ARRAY_SIZE(h1940_i2c_devices));
 745 }
 746
 747 MACHINE_START(H1940, "IPAQ-H1940")
 748         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 749         .atag_offset    = 0x100,
 750         .map_io         = h1940_map_io,
 751         .reserve        = h1940_reserve,
 752         .init_irq       = s3c2410_init_irq,
 753         .init_machine   = h1940_init,
 754         .init_time      = h1940_init_time,
 755 MACHINE_END