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

   1 // SPDX-License-Identifier: GPL-2.0
   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 #include <linux/kernel.h>
   9 #include <linux/types.h>
  10 #include <linux/interrupt.h>
  11 #include <linux/list.h>
  12 #include <linux/memblock.h>
  13 #include <linux/timer.h>
  14 #include <linux/init.h>
  15 #include <linux/device.h>
  16 #include <linux/serial_core.h>
  17 #include <linux/serial_s3c.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/io.h>
  20 #include <linux/gpio.h>
  21 #include <linux/gpio/machine.h>
  22 #include <linux/input.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/pwm.h>
  25 #include <linux/pwm_backlight.h>
  26 #include <linux/i2c.h>
  27 #include <linux/leds.h>
  28 #include <linux/pda_power.h>
  29 #include <linux/s3c_adc_battery.h>
  30 #include <linux/delay.h>
  31
  32 #include <video/platform_lcd.h>
  33
  34 #include <linux/mmc/host.h>
  35 #include <linux/export.h>
  36
  37 #include <asm/irq.h>
  38 #include <asm/mach-types.h>
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/irq.h>
  42
  43 #include <linux/platform_data/i2c-s3c2410.h>
  44 #include <linux/platform_data/mmc-s3cmci.h>
  45 #include <linux/platform_data/touchscreen-s3c2410.h>
  46 #include <linux/platform_data/usb-s3c2410_udc.h>
  47
  48 #include <sound/uda1380.h>
  49
  50 #include <mach/fb.h>
  51 #include <mach/hardware.h>
  52 #include <mach/regs-clock.h>
  53 #include <mach/regs-gpio.h>
  54 #include <mach/regs-lcd.h>
  55 #include <mach/gpio-samsung.h>
  56
  57 #include <plat/cpu.h>
  58 #include <plat/devs.h>
  59 #include <plat/gpio-cfg.h>
  60 #include <plat/pm.h>
  61 #include <plat/samsung-time.h>
  62
  63 #include "common.h"
  64 #include "h1940.h"
  65
  66 #define H1940_LATCH             ((void __force __iomem *)0xF8000000)
  67
  68 #define H1940_PA_LATCH          S3C2410_CS2
  69
  70 #define H1940_LATCH_BIT(x)      (1 << ((x) + 16 - S3C_GPIO_END))
  71
  72 #define S3C24XX_PLL_MDIV_SHIFT         (12)
  73 #define S3C24XX_PLL_PDIV_SHIFT         (4)
  74 #define S3C24XX_PLL_SDIV_SHIFT         (0)
  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(struct gpio_desc *desc, int state,
 360         unsigned long *delay_on, unsigned long *delay_off)
 361 {
 362         int blink_gpio, check_gpio1, check_gpio2;
 363         int gpio = desc ? desc_to_gpio(desc) : -EINVAL;
 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         .set_power     = h1940_set_mmc_power,
 464         .ocr_avail     = MMC_VDD_32_33,
 465 };
 466
 467 static struct gpiod_lookup_table h1940_mmc_gpio_table = {
 468         .dev_id = "s3c2410-sdi",
 469         .table = {
 470                 /* Card detect S3C2410_GPF(5) */
 471                 GPIO_LOOKUP("GPF", 5, "cd", GPIO_ACTIVE_LOW),
 472                 /* Write protect S3C2410_GPH(8) */
 473                 GPIO_LOOKUP("GPH", 8, "wp", GPIO_ACTIVE_LOW),
 474                 { },
 475         },
 476 };
 477
 478 static struct pwm_lookup h1940_pwm_lookup[] = {
 479         PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
 480                    PWM_POLARITY_NORMAL),
 481 };
 482
 483 static int h1940_backlight_init(struct device *dev)
 484 {
 485         gpio_request(S3C2410_GPB(0), "Backlight");
 486
 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 0;
 493 }
 494
 495 static int h1940_backlight_notify(struct device *dev, int brightness)
 496 {
 497         if (!brightness) {
 498                 gpio_direction_output(S3C2410_GPB(0), 1);
 499                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 500         } else {
 501                 gpio_direction_output(S3C2410_GPB(0), 0);
 502                 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 503                 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 504                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 505         }
 506         return brightness;
 507 }
 508
 509 static void h1940_backlight_exit(struct device *dev)
 510 {
 511         gpio_direction_output(S3C2410_GPB(0), 1);
 512         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 513 }
 514
 515
 516 static struct platform_pwm_backlight_data backlight_data = {
 517         .max_brightness = 100,
 518         .dft_brightness = 50,
 519         .enable_gpio    = -1,
 520         .init           = h1940_backlight_init,
 521         .notify         = h1940_backlight_notify,
 522         .exit           = h1940_backlight_exit,
 523 };
 524
 525 static struct platform_device h1940_backlight = {
 526         .name = "pwm-backlight",
 527         .dev  = {
 528                 .parent = &samsung_device_pwm.dev,
 529                 .platform_data = &backlight_data,
 530         },
 531         .id   = -1,
 532 };
 533
 534 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 535                                         unsigned int power)
 536 {
 537         int value, retries = 100;
 538
 539         if (!power) {
 540                 gpio_set_value(S3C2410_GPC(0), 0);
 541                 /* wait for 3ac */
 542                 do {
 543                         value = gpio_get_value(S3C2410_GPC(6));
 544                 } while (value && retries--);
 545
 546                 gpio_set_value(H1940_LATCH_LCD_P2, 0);
 547                 gpio_set_value(H1940_LATCH_LCD_P3, 0);
 548                 gpio_set_value(H1940_LATCH_LCD_P4, 0);
 549
 550                 gpio_direction_output(S3C2410_GPC(1), 0);
 551                 gpio_direction_output(S3C2410_GPC(4), 0);
 552
 553                 gpio_set_value(H1940_LATCH_LCD_P1, 0);
 554                 gpio_set_value(H1940_LATCH_LCD_P0, 0);
 555
 556                 gpio_set_value(S3C2410_GPC(5), 0);
 557
 558         } else {
 559                 gpio_set_value(H1940_LATCH_LCD_P0, 1);
 560                 gpio_set_value(H1940_LATCH_LCD_P1, 1);
 561
 562                 gpio_direction_input(S3C2410_GPC(1));
 563                 gpio_direction_input(S3C2410_GPC(4));
 564                 mdelay(10);
 565                 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 566                 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
 567
 568                 gpio_set_value(S3C2410_GPC(5), 1);
 569                 gpio_set_value(S3C2410_GPC(0), 1);
 570
 571                 gpio_set_value(H1940_LATCH_LCD_P3, 1);
 572                 gpio_set_value(H1940_LATCH_LCD_P2, 1);
 573                 gpio_set_value(H1940_LATCH_LCD_P4, 1);
 574         }
 575 }
 576
 577 static struct plat_lcd_data h1940_lcd_power_data = {
 578         .set_power      = h1940_lcd_power_set,
 579 };
 580
 581 static struct platform_device h1940_lcd_powerdev = {
 582         .name                   = "platform-lcd",
 583         .dev.parent             = &s3c_device_lcd.dev,
 584         .dev.platform_data      = &h1940_lcd_power_data,
 585 };
 586
 587 static struct uda1380_platform_data uda1380_info = {
 588         .gpio_power     = H1940_LATCH_UDA_POWER,
 589         .gpio_reset     = S3C2410_GPA(12),
 590         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 591 };
 592
 593 static struct i2c_board_info h1940_i2c_devices[] = {
 594         {
 595                 I2C_BOARD_INFO("uda1380", 0x1a),
 596                 .platform_data = &uda1380_info,
 597         },
 598 };
 599
 600 #define DECLARE_BUTTON(p, k, n, w)      \
 601         {                               \
 602                 .gpio           = p,    \
 603                 .code           = k,    \
 604                 .desc           = n,    \
 605                 .wakeup         = w,    \
 606                 .active_low     = 1,    \
 607         }
 608
 609 static struct gpio_keys_button h1940_buttons[] = {
 610         DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 611         DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 612         DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 613         DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 614         DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 615         DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 616         DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 617         DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 618         DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 619         DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 620         DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 621 };
 622
 623 static struct gpio_keys_platform_data h1940_buttons_data = {
 624         .buttons        = h1940_buttons,
 625         .nbuttons       = ARRAY_SIZE(h1940_buttons),
 626 };
 627
 628 static struct platform_device h1940_dev_buttons = {
 629         .name           = "gpio-keys",
 630         .id             = -1,
 631         .dev            = {
 632                 .platform_data  = &h1940_buttons_data,
 633         }
 634 };
 635
 636 static struct platform_device *h1940_devices[] __initdata = {
 637         &h1940_dev_buttons,
 638         &s3c_device_ohci,
 639         &s3c_device_lcd,
 640         &s3c_device_wdt,
 641         &s3c_device_i2c0,
 642         &s3c_device_iis,
 643         &s3c_device_usbgadget,
 644         &h1940_device_leds,
 645         &h1940_device_bluetooth,
 646         &s3c_device_sdi,
 647         &s3c_device_rtc,
 648         &samsung_device_pwm,
 649         &h1940_backlight,
 650         &h1940_lcd_powerdev,
 651         &s3c_device_adc,
 652         &s3c_device_ts,
 653         &power_supply,
 654         &h1940_battery,
 655 };
 656
 657 static void __init h1940_map_io(void)
 658 {
 659         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 660         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 661         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 662
 663         /* setup PM */
 664
 665 #ifdef CONFIG_PM_H1940
 666         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 667 #endif
 668         s3c_pm_init();
 669
 670         /* Add latch gpio chip, set latch initial value */
 671         h1940_latch_control(0, 0);
 672         WARN_ON(gpiochip_add_data(&h1940_latch_gpiochip, NULL));
 673 }
 674
 675 static void __init h1940_init_time(void)
 676 {
 677         s3c2410_init_clocks(12000000);
 678         samsung_timer_init();
 679 }
 680
 681 /* H1940 and RX3715 need to reserve this for suspend */
 682 static void __init h1940_reserve(void)
 683 {
 684         memblock_reserve(0x30003000, 0x1000);
 685         memblock_reserve(0x30081000, 0x1000);
 686 }
 687
 688 static void __init h1940_init(void)
 689 {
 690         u32 tmp;
 691
 692         s3c24xx_fb_set_platdata(&h1940_fb_info);
 693         gpiod_add_lookup_table(&h1940_mmc_gpio_table);
 694         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 695         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 696         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 697         s3c_i2c0_set_platdata(NULL);
 698
 699         /* Turn off suspend on both USB ports, and switch the
 700          * selectable USB port to USB device mode. */
 701
 702         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 703                               S3C2410_MISCCR_USBSUSPND0 |
 704                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 705
 706         tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
 707               | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
 708               | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
 709         writel(tmp, S3C2410_UPLLCON);
 710
 711         gpio_request(S3C2410_GPC(0), "LCD power");
 712         gpio_request(S3C2410_GPC(1), "LCD power");
 713         gpio_request(S3C2410_GPC(4), "LCD power");
 714         gpio_request(S3C2410_GPC(5), "LCD power");
 715         gpio_request(S3C2410_GPC(6), "LCD power");
 716         gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 717         gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 718         gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 719         gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 720         gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 721         gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 722         gpio_direction_output(S3C2410_GPC(0), 0);
 723         gpio_direction_output(S3C2410_GPC(1), 0);
 724         gpio_direction_output(S3C2410_GPC(4), 0);
 725         gpio_direction_output(S3C2410_GPC(5), 0);
 726         gpio_direction_input(S3C2410_GPC(6));
 727         gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 728         gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 729         gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 730         gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 731         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 732         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 733
 734         gpio_request(H1940_LATCH_SD_POWER, "SD power");
 735         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 736
 737         pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
 738         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 739
 740         gpio_request(S3C2410_GPA(1), "Red LED blink");
 741         gpio_request(S3C2410_GPA(3), "Blue LED blink");
 742         gpio_request(S3C2410_GPA(7), "Green LED blink");
 743         gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 744         gpio_direction_output(S3C2410_GPA(1), 0);
 745         gpio_direction_output(S3C2410_GPA(3), 0);
 746         gpio_direction_output(S3C2410_GPA(7), 0);
 747         gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
 748
 749         i2c_register_board_info(0, h1940_i2c_devices,
 750                 ARRAY_SIZE(h1940_i2c_devices));
 751 }
 752
 753 MACHINE_START(H1940, "IPAQ-H1940")
 754         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 755         .atag_offset    = 0x100,
 756         .map_io         = h1940_map_io,
 757         .reserve        = h1940_reserve,
 758         .init_irq       = s3c2410_init_irq,
 759         .init_machine   = h1940_init,
 760         .init_time      = h1940_init_time,
 761 MACHINE_END