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/input.h>
  22 #include <linux/gpio_keys.h>
  23 #include <linux/pwm.h>
  24 #include <linux/pwm_backlight.h>
  25 #include <linux/i2c.h>
  26 #include <linux/leds.h>
  27 #include <linux/pda_power.h>
  28 #include <linux/s3c_adc_battery.h>
  29 #include <linux/delay.h>
  30
  31 #include <video/platform_lcd.h>
  32
  33 #include <linux/mmc/host.h>
  34 #include <linux/export.h>
  35
  36 #include <asm/irq.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/map.h>
  40 #include <asm/mach/irq.h>
  41
  42 #include <linux/platform_data/i2c-s3c2410.h>
  43 #include <linux/platform_data/mmc-s3cmci.h>
  44 #include <linux/platform_data/touchscreen-s3c2410.h>
  45 #include <linux/platform_data/usb-s3c2410_udc.h>
  46
  47 #include <sound/uda1380.h>
  48
  49 #include <mach/fb.h>
  50 #include <mach/hardware.h>
  51 #include <mach/regs-clock.h>
  52 #include <mach/regs-gpio.h>
  53 #include <mach/regs-lcd.h>
  54 #include <mach/gpio-samsung.h>
  55
  56 #include <plat/cpu.h>
  57 #include <plat/devs.h>
  58 #include <plat/gpio-cfg.h>
  59 #include <plat/pm.h>
  60 #include <plat/samsung-time.h>
  61
  62 #include "common.h"
  63 #include "h1940.h"
  64
  65 #define H1940_LATCH             ((void __force __iomem *)0xF8000000)
  66
  67 #define H1940_PA_LATCH          S3C2410_CS2
  68
  69 #define H1940_LATCH_BIT(x)      (1 << ((x) + 16 - S3C_GPIO_END))
  70
  71 #define S3C24XX_PLL_MDIV_SHIFT         (12)
  72 #define S3C24XX_PLL_PDIV_SHIFT         (4)
  73 #define S3C24XX_PLL_SDIV_SHIFT         (0)
  74
  75 static struct map_desc h1940_iodesc[] __initdata = {
  76         [0] = {
  77                 .virtual        = (unsigned long)H1940_LATCH,
  78                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  79                 .length         = SZ_16K,
  80                 .type           = MT_DEVICE
  81         },
  82 };
  83
  84 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  85 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  86 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  87
  88 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  89         [0] = {
  90                 .hwport      = 0,
  91                 .flags       = 0,
  92                 .ucon        = 0x3c5,
  93                 .ulcon       = 0x03,
  94                 .ufcon       = 0x51,
  95         },
  96         [1] = {
  97                 .hwport      = 1,
  98                 .flags       = 0,
  99                 .ucon        = 0x245,
 100                 .ulcon       = 0x03,
 101                 .ufcon       = 0x00,
 102         },
 103         /* IR port */
 104         [2] = {
 105                 .hwport      = 2,
 106                 .flags       = 0,
 107                 .uart_flags  = UPF_CONS_FLOW,
 108                 .ucon        = 0x3c5,
 109                 .ulcon       = 0x43,
 110                 .ufcon       = 0x51,
 111         }
 112 };
 113
 114 /* Board control latch control */
 115
 116 static unsigned int latch_state;
 117
 118 static void h1940_latch_control(unsigned int clear, unsigned int set)
 119 {
 120         unsigned long flags;
 121
 122         local_irq_save(flags);
 123
 124         latch_state &= ~clear;
 125         latch_state |= set;
 126
 127         __raw_writel(latch_state, H1940_LATCH);
 128
 129         local_irq_restore(flags);
 130 }
 131
 132 static inline int h1940_gpiolib_to_latch(int offset)
 133 {
 134         return 1 << (offset + 16);
 135 }
 136
 137 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
 138                                         unsigned offset, int value)
 139 {
 140         int latch_bit = h1940_gpiolib_to_latch(offset);
 141
 142         h1940_latch_control(value ? 0 : latch_bit,
 143                 value ? latch_bit : 0);
 144 }
 145
 146 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
 147                                         unsigned offset, int value)
 148 {
 149         h1940_gpiolib_latch_set(chip, offset, value);
 150         return 0;
 151 }
 152
 153 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
 154                                         unsigned offset)
 155 {
 156         return (latch_state >> (offset + 16)) & 1;
 157 }
 158
 159 static struct gpio_chip h1940_latch_gpiochip = {
 160         .base                   = H1940_LATCH_GPIO(0),
 161         .owner                  = THIS_MODULE,
 162         .label                  = "H1940_LATCH",
 163         .ngpio                  = 16,
 164         .direction_output       = h1940_gpiolib_latch_output,
 165         .set                    = h1940_gpiolib_latch_set,
 166         .get                    = h1940_gpiolib_latch_get,
 167 };
 168
 169 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 170         .vbus_pin               = S3C2410_GPG(5),
 171         .vbus_pin_inverted      = 1,
 172         .pullup_pin             = H1940_LATCH_USB_DP,
 173 };
 174
 175 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 176                 .delay = 10000,
 177                 .presc = 49,
 178                 .oversampling_shift = 2,
 179                 .cfg_gpio = s3c24xx_ts_cfg_gpio,
 180 };
 181
 182 /**
 183  * Set lcd on or off
 184  **/
 185 static struct s3c2410fb_display h1940_lcd __initdata = {
 186         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 187                         S3C2410_LCDCON5_INVVLINE | \
 188                         S3C2410_LCDCON5_HWSWP,
 189
 190         .type =         S3C2410_LCDCON1_TFT,
 191         .width =        240,
 192         .height =       320,
 193         .pixclock =     260000,
 194         .xres =         240,
 195         .yres =         320,
 196         .bpp =          16,
 197         .left_margin =  8,
 198         .right_margin = 20,
 199         .hsync_len =    4,
 200         .upper_margin = 8,
 201         .lower_margin = 7,
 202         .vsync_len =    1,
 203 };
 204
 205 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 206         .displays = &h1940_lcd,
 207         .num_displays = 1,
 208         .default_display = 0,
 209
 210         .lpcsel =       0x02,
 211         .gpccon =       0xaa940659,
 212         .gpccon_mask =  0xffffc0f0,
 213         .gpcup =        0x0000ffff,
 214         .gpcup_mask =   0xffffffff,
 215         .gpdcon =       0xaa84aaa0,
 216         .gpdcon_mask =  0xffffffff,
 217         .gpdup =        0x0000faff,
 218         .gpdup_mask =   0xffffffff,
 219 };
 220
 221 static int power_supply_init(struct device *dev)
 222 {
 223         return gpio_request(S3C2410_GPF(2), "cable plugged");
 224 }
 225
 226 static int h1940_is_ac_online(void)
 227 {
 228         return !gpio_get_value(S3C2410_GPF(2));
 229 }
 230
 231 static void power_supply_exit(struct device *dev)
 232 {
 233         gpio_free(S3C2410_GPF(2));
 234 }
 235
 236 static char *h1940_supplicants[] = {
 237         "main-battery",
 238         "backup-battery",
 239 };
 240
 241 static struct pda_power_pdata power_supply_info = {
 242         .init                   = power_supply_init,
 243         .is_ac_online           = h1940_is_ac_online,
 244         .exit                   = power_supply_exit,
 245         .supplied_to            = h1940_supplicants,
 246         .num_supplicants        = ARRAY_SIZE(h1940_supplicants),
 247 };
 248
 249 static struct resource power_supply_resources[] = {
 250         [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 251                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 252 };
 253
 254 static struct platform_device power_supply = {
 255         .name           = "pda-power",
 256         .id             = -1,
 257         .dev            = {
 258                                 .platform_data =
 259                                         &power_supply_info,
 260         },
 261         .resource       = power_supply_resources,
 262         .num_resources  = ARRAY_SIZE(power_supply_resources),
 263 };
 264
 265 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 266         { .volt = 4070, .cur = 162, .level = 100},
 267         { .volt = 4040, .cur = 165, .level = 95},
 268         { .volt = 4016, .cur = 164, .level = 90},
 269         { .volt = 3996, .cur = 166, .level = 85},
 270         { .volt = 3971, .cur = 168, .level = 80},
 271         { .volt = 3951, .cur = 168, .level = 75},
 272         { .volt = 3931, .cur = 170, .level = 70},
 273         { .volt = 3903, .cur = 172, .level = 65},
 274         { .volt = 3886, .cur = 172, .level = 60},
 275         { .volt = 3858, .cur = 176, .level = 55},
 276         { .volt = 3842, .cur = 176, .level = 50},
 277         { .volt = 3818, .cur = 176, .level = 45},
 278         { .volt = 3789, .cur = 180, .level = 40},
 279         { .volt = 3769, .cur = 180, .level = 35},
 280         { .volt = 3749, .cur = 184, .level = 30},
 281         { .volt = 3732, .cur = 184, .level = 25},
 282         { .volt = 3716, .cur = 184, .level = 20},
 283         { .volt = 3708, .cur = 184, .level = 15},
 284         { .volt = 3716, .cur = 96, .level = 10},
 285         { .volt = 3700, .cur = 96, .level = 5},
 286         { .volt = 3684, .cur = 96, .level = 0},
 287 };
 288
 289 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 290         { .volt = 4130, .cur = 0, .level = 100},
 291         { .volt = 3982, .cur = 0, .level = 50},
 292         { .volt = 3854, .cur = 0, .level = 10},
 293         { .volt = 3841, .cur = 0, .level = 0},
 294 };
 295
 296 static int h1940_bat_init(void)
 297 {
 298         int ret;
 299
 300         ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
 301         if (ret)
 302                 return ret;
 303         gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
 304
 305         return 0;
 306
 307 }
 308
 309 static void h1940_bat_exit(void)
 310 {
 311         gpio_free(H1940_LATCH_SM803_ENABLE);
 312 }
 313
 314 static void h1940_enable_charger(void)
 315 {
 316         gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
 317 }
 318
 319 static void h1940_disable_charger(void)
 320 {
 321         gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
 322 }
 323
 324 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
 325         .init = h1940_bat_init,
 326         .exit = h1940_bat_exit,
 327         .enable_charger = h1940_enable_charger,
 328         .disable_charger = h1940_disable_charger,
 329         .gpio_charge_finished = S3C2410_GPF(3),
 330         .gpio_inverted = 1,
 331         .lut_noac = bat_lut_noac,
 332         .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 333         .lut_acin = bat_lut_acin,
 334         .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 335         .volt_channel = 0,
 336         .current_channel = 1,
 337         .volt_mult = 4056,
 338         .current_mult = 1893,
 339         .internal_impedance = 200,
 340         .backup_volt_channel = 3,
 341         /* TODO Check backup volt multiplier */
 342         .backup_volt_mult = 4056,
 343         .backup_volt_min = 0,
 344         .backup_volt_max = 4149288
 345 };
 346
 347 static struct platform_device h1940_battery = {
 348         .name             = "s3c-adc-battery",
 349         .id               = -1,
 350         .dev = {
 351                 .parent = &s3c_device_adc.dev,
 352                 .platform_data = &h1940_bat_cfg,
 353         },
 354 };
 355
 356 static DEFINE_SPINLOCK(h1940_blink_spin);
 357
 358 int h1940_led_blink_set(struct gpio_desc *desc, int state,
 359         unsigned long *delay_on, unsigned long *delay_off)
 360 {
 361         int blink_gpio, check_gpio1, check_gpio2;
 362         int gpio = desc ? desc_to_gpio(desc) : -EINVAL;
 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 struct pwm_lookup h1940_pwm_lookup[] = {
 469         PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
 470                    PWM_POLARITY_NORMAL),
 471 };
 472
 473 static int h1940_backlight_init(struct device *dev)
 474 {
 475         gpio_request(S3C2410_GPB(0), "Backlight");
 476
 477         gpio_direction_output(S3C2410_GPB(0), 0);
 478         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 479         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 480         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 481
 482         return 0;
 483 }
 484
 485 static int h1940_backlight_notify(struct device *dev, int brightness)
 486 {
 487         if (!brightness) {
 488                 gpio_direction_output(S3C2410_GPB(0), 1);
 489                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 490         } else {
 491                 gpio_direction_output(S3C2410_GPB(0), 0);
 492                 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 493                 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 494                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 495         }
 496         return brightness;
 497 }
 498
 499 static void h1940_backlight_exit(struct device *dev)
 500 {
 501         gpio_direction_output(S3C2410_GPB(0), 1);
 502         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 503 }
 504
 505
 506 static struct platform_pwm_backlight_data backlight_data = {
 507         .max_brightness = 100,
 508         .dft_brightness = 50,
 509         .enable_gpio    = -1,
 510         .init           = h1940_backlight_init,
 511         .notify         = h1940_backlight_notify,
 512         .exit           = h1940_backlight_exit,
 513 };
 514
 515 static struct platform_device h1940_backlight = {
 516         .name = "pwm-backlight",
 517         .dev  = {
 518                 .parent = &samsung_device_pwm.dev,
 519                 .platform_data = &backlight_data,
 520         },
 521         .id   = -1,
 522 };
 523
 524 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 525                                         unsigned int power)
 526 {
 527         int value, retries = 100;
 528
 529         if (!power) {
 530                 gpio_set_value(S3C2410_GPC(0), 0);
 531                 /* wait for 3ac */
 532                 do {
 533                         value = gpio_get_value(S3C2410_GPC(6));
 534                 } while (value && retries--);
 535
 536                 gpio_set_value(H1940_LATCH_LCD_P2, 0);
 537                 gpio_set_value(H1940_LATCH_LCD_P3, 0);
 538                 gpio_set_value(H1940_LATCH_LCD_P4, 0);
 539
 540                 gpio_direction_output(S3C2410_GPC(1), 0);
 541                 gpio_direction_output(S3C2410_GPC(4), 0);
 542
 543                 gpio_set_value(H1940_LATCH_LCD_P1, 0);
 544                 gpio_set_value(H1940_LATCH_LCD_P0, 0);
 545
 546                 gpio_set_value(S3C2410_GPC(5), 0);
 547
 548         } else {
 549                 gpio_set_value(H1940_LATCH_LCD_P0, 1);
 550                 gpio_set_value(H1940_LATCH_LCD_P1, 1);
 551
 552                 gpio_direction_input(S3C2410_GPC(1));
 553                 gpio_direction_input(S3C2410_GPC(4));
 554                 mdelay(10);
 555                 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 556                 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
 557
 558                 gpio_set_value(S3C2410_GPC(5), 1);
 559                 gpio_set_value(S3C2410_GPC(0), 1);
 560
 561                 gpio_set_value(H1940_LATCH_LCD_P3, 1);
 562                 gpio_set_value(H1940_LATCH_LCD_P2, 1);
 563                 gpio_set_value(H1940_LATCH_LCD_P4, 1);
 564         }
 565 }
 566
 567 static struct plat_lcd_data h1940_lcd_power_data = {
 568         .set_power      = h1940_lcd_power_set,
 569 };
 570
 571 static struct platform_device h1940_lcd_powerdev = {
 572         .name                   = "platform-lcd",
 573         .dev.parent             = &s3c_device_lcd.dev,
 574         .dev.platform_data      = &h1940_lcd_power_data,
 575 };
 576
 577 static struct uda1380_platform_data uda1380_info = {
 578         .gpio_power     = H1940_LATCH_UDA_POWER,
 579         .gpio_reset     = S3C2410_GPA(12),
 580         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 581 };
 582
 583 static struct i2c_board_info h1940_i2c_devices[] = {
 584         {
 585                 I2C_BOARD_INFO("uda1380", 0x1a),
 586                 .platform_data = &uda1380_info,
 587         },
 588 };
 589
 590 #define DECLARE_BUTTON(p, k, n, w)      \
 591         {                               \
 592                 .gpio           = p,    \
 593                 .code           = k,    \
 594                 .desc           = n,    \
 595                 .wakeup         = w,    \
 596                 .active_low     = 1,    \
 597         }
 598
 599 static struct gpio_keys_button h1940_buttons[] = {
 600         DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 601         DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 602         DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 603         DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 604         DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 605         DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 606         DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 607         DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 608         DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 609         DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 610         DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 611 };
 612
 613 static struct gpio_keys_platform_data h1940_buttons_data = {
 614         .buttons        = h1940_buttons,
 615         .nbuttons       = ARRAY_SIZE(h1940_buttons),
 616 };
 617
 618 static struct platform_device h1940_dev_buttons = {
 619         .name           = "gpio-keys",
 620         .id             = -1,
 621         .dev            = {
 622                 .platform_data  = &h1940_buttons_data,
 623         }
 624 };
 625
 626 static struct platform_device *h1940_devices[] __initdata = {
 627         &h1940_dev_buttons,
 628         &s3c_device_ohci,
 629         &s3c_device_lcd,
 630         &s3c_device_wdt,
 631         &s3c_device_i2c0,
 632         &s3c_device_iis,
 633         &s3c_device_usbgadget,
 634         &h1940_device_leds,
 635         &h1940_device_bluetooth,
 636         &s3c_device_sdi,
 637         &s3c_device_rtc,
 638         &samsung_device_pwm,
 639         &h1940_backlight,
 640         &h1940_lcd_powerdev,
 641         &s3c_device_adc,
 642         &s3c_device_ts,
 643         &power_supply,
 644         &h1940_battery,
 645 };
 646
 647 static void __init h1940_map_io(void)
 648 {
 649         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 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_data(&h1940_latch_gpiochip, NULL));
 663 }
 664
 665 static void __init h1940_init_time(void)
 666 {
 667         s3c2410_init_clocks(12000000);
 668         samsung_timer_init();
 669 }
 670
 671 /* H1940 and RX3715 need to reserve this for suspend */
 672 static void __init h1940_reserve(void)
 673 {
 674         memblock_reserve(0x30003000, 0x1000);
 675         memblock_reserve(0x30081000, 0x1000);
 676 }
 677
 678 static void __init h1940_init(void)
 679 {
 680         u32 tmp;
 681
 682         s3c24xx_fb_set_platdata(&h1940_fb_info);
 683         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 684         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 685         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 686         s3c_i2c0_set_platdata(NULL);
 687
 688         /* Turn off suspend on both USB ports, and switch the
 689          * selectable USB port to USB device mode. */
 690
 691         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 692                               S3C2410_MISCCR_USBSUSPND0 |
 693                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 694
 695         tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
 696               | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
 697               | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
 698         writel(tmp, S3C2410_UPLLCON);
 699
 700         gpio_request(S3C2410_GPC(0), "LCD power");
 701         gpio_request(S3C2410_GPC(1), "LCD power");
 702         gpio_request(S3C2410_GPC(4), "LCD power");
 703         gpio_request(S3C2410_GPC(5), "LCD power");
 704         gpio_request(S3C2410_GPC(6), "LCD power");
 705         gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 706         gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 707         gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 708         gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 709         gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 710         gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 711         gpio_direction_output(S3C2410_GPC(0), 0);
 712         gpio_direction_output(S3C2410_GPC(1), 0);
 713         gpio_direction_output(S3C2410_GPC(4), 0);
 714         gpio_direction_output(S3C2410_GPC(5), 0);
 715         gpio_direction_input(S3C2410_GPC(6));
 716         gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 717         gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 718         gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 719         gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 720         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 721         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 722
 723         gpio_request(H1940_LATCH_SD_POWER, "SD power");
 724         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 725
 726         pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
 727         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 728
 729         gpio_request(S3C2410_GPA(1), "Red LED blink");
 730         gpio_request(S3C2410_GPA(3), "Blue LED blink");
 731         gpio_request(S3C2410_GPA(7), "Green LED blink");
 732         gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 733         gpio_direction_output(S3C2410_GPA(1), 0);
 734         gpio_direction_output(S3C2410_GPA(3), 0);
 735         gpio_direction_output(S3C2410_GPA(7), 0);
 736         gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
 737
 738         i2c_register_board_info(0, h1940_i2c_devices,
 739                 ARRAY_SIZE(h1940_i2c_devices));
 740 }
 741
 742 MACHINE_START(H1940, "IPAQ-H1940")
 743         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 744         .atag_offset    = 0x100,
 745         .map_io         = h1940_map_io,
 746         .reserve        = h1940_reserve,
 747         .init_irq       = s3c2410_init_irq,
 748         .init_machine   = h1940_init,
 749         .init_time      = h1940_init_time,
 750 MACHINE_END