arch/arm/mach-s3c24xx/mach-rx1950.c

   1 /*
   2  * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
   3  * Copyright (c) 2007-2010 Vasily Khoruzhick
   4  *
   5  * based on smdk2440 written by Ben Dooks
   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/delay.h>
  19 #include <linux/timer.h>
  20 #include <linux/init.h>
  21 #include <linux/gpio.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/serial_core.h>
  24 #include <linux/serial_s3c.h>
  25 #include <linux/input.h>
  26 #include <linux/gpio_keys.h>
  27 #include <linux/device.h>
  28 #include <linux/pda_power.h>
  29 #include <linux/pwm_backlight.h>
  30 #include <linux/pwm.h>
  31 #include <linux/s3c_adc_battery.h>
  32 #include <linux/leds.h>
  33 #include <linux/i2c.h>
  34
  35 #include <linux/mtd/mtd.h>
  36 #include <linux/mtd/partitions.h>
  37
  38 #include <linux/mmc/host.h>
  39
  40 #include <asm/mach-types.h>
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43
  44 #include <linux/platform_data/i2c-s3c2410.h>
  45 #include <linux/platform_data/mmc-s3cmci.h>
  46 #include <linux/platform_data/mtd-nand-s3c2410.h>
  47 #include <linux/platform_data/touchscreen-s3c2410.h>
  48 #include <linux/platform_data/usb-s3c2410_udc.h>
  49
  50 #include <sound/uda1380.h>
  51
  52 #include <mach/fb.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/pm.h>
  60 #include <plat/samsung-time.h>
  61 #include <plat/gpio-cfg.h>
  62
  63 #include "common.h"
  64 #include "h1940.h"
  65
  66 #define LCD_PWM_PERIOD 192960
  67 #define LCD_PWM_DUTY 127353
  68
  69 static struct map_desc rx1950_iodesc[] __initdata = {
  70 };
  71
  72 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
  73         [0] = {
  74                .hwport = 0,
  75                .flags = 0,
  76                .ucon = 0x3c5,
  77                .ulcon = 0x03,
  78                .ufcon = 0x51,
  79                 .clk_sel = S3C2410_UCON_CLKSEL3,
  80         },
  81         [1] = {
  82                .hwport = 1,
  83                .flags = 0,
  84                .ucon = 0x3c5,
  85                .ulcon = 0x03,
  86                .ufcon = 0x51,
  87                 .clk_sel = S3C2410_UCON_CLKSEL3,
  88         },
  89         /* IR port */
  90         [2] = {
  91                .hwport = 2,
  92                .flags = 0,
  93                .ucon = 0x3c5,
  94                .ulcon = 0x43,
  95                .ufcon = 0xf1,
  96                 .clk_sel = S3C2410_UCON_CLKSEL3,
  97         },
  98 };
  99
 100 static struct s3c2410fb_display rx1950_display = {
 101         .type = S3C2410_LCDCON1_TFT,
 102         .width = 240,
 103         .height = 320,
 104         .xres = 240,
 105         .yres = 320,
 106         .bpp = 16,
 107
 108         .pixclock = 260000,
 109         .left_margin = 10,
 110         .right_margin = 20,
 111         .hsync_len = 10,
 112         .upper_margin = 2,
 113         .lower_margin = 2,
 114         .vsync_len = 2,
 115
 116         .lcdcon5 = S3C2410_LCDCON5_FRM565 |
 117                            S3C2410_LCDCON5_INVVCLK |
 118                            S3C2410_LCDCON5_INVVLINE |
 119                            S3C2410_LCDCON5_INVVFRAME |
 120                            S3C2410_LCDCON5_HWSWP |
 121                            (0x02 << 13) |
 122                            (0x02 << 15),
 123
 124 };
 125
 126 static int power_supply_init(struct device *dev)
 127 {
 128         return gpio_request(S3C2410_GPF(2), "cable plugged");
 129 }
 130
 131 static int rx1950_is_ac_online(void)
 132 {
 133         return !gpio_get_value(S3C2410_GPF(2));
 134 }
 135
 136 static void power_supply_exit(struct device *dev)
 137 {
 138         gpio_free(S3C2410_GPF(2));
 139 }
 140
 141 static char *rx1950_supplicants[] = {
 142         "main-battery"
 143 };
 144
 145 static struct pda_power_pdata power_supply_info = {
 146         .init                   = power_supply_init,
 147         .is_ac_online           = rx1950_is_ac_online,
 148         .exit                   = power_supply_exit,
 149         .supplied_to            = rx1950_supplicants,
 150         .num_supplicants        = ARRAY_SIZE(rx1950_supplicants),
 151 };
 152
 153 static struct resource power_supply_resources[] = {
 154         [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 155                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 156 };
 157
 158 static struct platform_device power_supply = {
 159         .name                   = "pda-power",
 160         .id                     = -1,
 161         .dev                    = {
 162                                         .platform_data =
 163                                                 &power_supply_info,
 164         },
 165         .resource               = power_supply_resources,
 166         .num_resources          = ARRAY_SIZE(power_supply_resources),
 167 };
 168
 169 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 170         { .volt = 4100, .cur = 156, .level = 100},
 171         { .volt = 4050, .cur = 156, .level = 95},
 172         { .volt = 4025, .cur = 141, .level = 90},
 173         { .volt = 3995, .cur = 144, .level = 85},
 174         { .volt = 3957, .cur = 162, .level = 80},
 175         { .volt = 3931, .cur = 147, .level = 75},
 176         { .volt = 3902, .cur = 147, .level = 70},
 177         { .volt = 3863, .cur = 153, .level = 65},
 178         { .volt = 3838, .cur = 150, .level = 60},
 179         { .volt = 3800, .cur = 153, .level = 55},
 180         { .volt = 3765, .cur = 153, .level = 50},
 181         { .volt = 3748, .cur = 172, .level = 45},
 182         { .volt = 3740, .cur = 153, .level = 40},
 183         { .volt = 3714, .cur = 175, .level = 35},
 184         { .volt = 3710, .cur = 156, .level = 30},
 185         { .volt = 3963, .cur = 156, .level = 25},
 186         { .volt = 3672, .cur = 178, .level = 20},
 187         { .volt = 3651, .cur = 178, .level = 15},
 188         { .volt = 3629, .cur = 178, .level = 10},
 189         { .volt = 3612, .cur = 162, .level = 5},
 190         { .volt = 3605, .cur = 162, .level = 0},
 191 };
 192
 193 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 194         { .volt = 4200, .cur = 0, .level = 100},
 195         { .volt = 4190, .cur = 0, .level = 99},
 196         { .volt = 4178, .cur = 0, .level = 95},
 197         { .volt = 4110, .cur = 0, .level = 70},
 198         { .volt = 4076, .cur = 0, .level = 65},
 199         { .volt = 4046, .cur = 0, .level = 60},
 200         { .volt = 4021, .cur = 0, .level = 55},
 201         { .volt = 3999, .cur = 0, .level = 50},
 202         { .volt = 3982, .cur = 0, .level = 45},
 203         { .volt = 3965, .cur = 0, .level = 40},
 204         { .volt = 3957, .cur = 0, .level = 35},
 205         { .volt = 3948, .cur = 0, .level = 30},
 206         { .volt = 3936, .cur = 0, .level = 25},
 207         { .volt = 3927, .cur = 0, .level = 20},
 208         { .volt = 3906, .cur = 0, .level = 15},
 209         { .volt = 3880, .cur = 0, .level = 10},
 210         { .volt = 3829, .cur = 0, .level = 5},
 211         { .volt = 3820, .cur = 0, .level = 0},
 212 };
 213
 214 static int rx1950_bat_init(void)
 215 {
 216         int ret;
 217
 218         ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
 219         if (ret)
 220                 goto err_gpio1;
 221         ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
 222         if (ret)
 223                 goto err_gpio2;
 224
 225         return 0;
 226
 227 err_gpio2:
 228         gpio_free(S3C2410_GPJ(2));
 229 err_gpio1:
 230         return ret;
 231 }
 232
 233 static void rx1950_bat_exit(void)
 234 {
 235         gpio_free(S3C2410_GPJ(2));
 236         gpio_free(S3C2410_GPJ(3));
 237 }
 238
 239 static void rx1950_enable_charger(void)
 240 {
 241         gpio_direction_output(S3C2410_GPJ(2), 1);
 242         gpio_direction_output(S3C2410_GPJ(3), 1);
 243 }
 244
 245 static void rx1950_disable_charger(void)
 246 {
 247         gpio_direction_output(S3C2410_GPJ(2), 0);
 248         gpio_direction_output(S3C2410_GPJ(3), 0);
 249 }
 250
 251 static DEFINE_SPINLOCK(rx1950_blink_spin);
 252
 253 static int rx1950_led_blink_set(struct gpio_desc *desc, int state,
 254         unsigned long *delay_on, unsigned long *delay_off)
 255 {
 256         int gpio = desc_to_gpio(desc);
 257         int blink_gpio, check_gpio;
 258
 259         switch (gpio) {
 260         case S3C2410_GPA(6):
 261                 blink_gpio = S3C2410_GPA(4);
 262                 check_gpio = S3C2410_GPA(3);
 263                 break;
 264         case S3C2410_GPA(7):
 265                 blink_gpio = S3C2410_GPA(3);
 266                 check_gpio = S3C2410_GPA(4);
 267                 break;
 268         default:
 269                 return -EINVAL;
 270                 break;
 271         }
 272
 273         if (delay_on && delay_off && !*delay_on && !*delay_off)
 274                 *delay_on = *delay_off = 500;
 275
 276         spin_lock(&rx1950_blink_spin);
 277
 278         switch (state) {
 279         case GPIO_LED_NO_BLINK_LOW:
 280         case GPIO_LED_NO_BLINK_HIGH:
 281                 if (!gpio_get_value(check_gpio))
 282                         gpio_set_value(S3C2410_GPJ(6), 0);
 283                 gpio_set_value(blink_gpio, 0);
 284                 gpio_set_value(gpio, state);
 285                 break;
 286         case GPIO_LED_BLINK:
 287                 gpio_set_value(gpio, 0);
 288                 gpio_set_value(S3C2410_GPJ(6), 1);
 289                 gpio_set_value(blink_gpio, 1);
 290                 break;
 291         }
 292
 293         spin_unlock(&rx1950_blink_spin);
 294
 295         return 0;
 296 }
 297
 298 static struct gpio_led rx1950_leds_desc[] = {
 299         {
 300                 .name                   = "Green",
 301                 .default_trigger        = "main-battery-full",
 302                 .gpio                   = S3C2410_GPA(6),
 303                 .retain_state_suspended = 1,
 304         },
 305         {
 306                 .name                   = "Red",
 307                 .default_trigger
 308                         = "main-battery-charging-blink-full-solid",
 309                 .gpio                   = S3C2410_GPA(7),
 310                 .retain_state_suspended = 1,
 311         },
 312         {
 313                 .name                   = "Blue",
 314                 .default_trigger        = "rx1950-acx-mem",
 315                 .gpio                   = S3C2410_GPA(11),
 316                 .retain_state_suspended = 1,
 317         },
 318 };
 319
 320 static struct gpio_led_platform_data rx1950_leds_pdata = {
 321         .num_leds       = ARRAY_SIZE(rx1950_leds_desc),
 322         .leds           = rx1950_leds_desc,
 323         .gpio_blink_set = rx1950_led_blink_set,
 324 };
 325
 326 static struct platform_device rx1950_leds = {
 327         .name   = "leds-gpio",
 328         .id             = -1,
 329         .dev    = {
 330                                 .platform_data = &rx1950_leds_pdata,
 331         },
 332 };
 333
 334 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
 335         .init = rx1950_bat_init,
 336         .exit = rx1950_bat_exit,
 337         .enable_charger = rx1950_enable_charger,
 338         .disable_charger = rx1950_disable_charger,
 339         .gpio_charge_finished = S3C2410_GPF(3),
 340         .lut_noac = bat_lut_noac,
 341         .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 342         .lut_acin = bat_lut_acin,
 343         .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 344         .volt_channel = 0,
 345         .current_channel = 1,
 346         .volt_mult = 4235,
 347         .current_mult = 2900,
 348         .internal_impedance = 200,
 349 };
 350
 351 static struct platform_device rx1950_battery = {
 352         .name             = "s3c-adc-battery",
 353         .id               = -1,
 354         .dev = {
 355                 .parent = &s3c_device_adc.dev,
 356                 .platform_data = &rx1950_bat_cfg,
 357         },
 358 };
 359
 360 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
 361         .displays = &rx1950_display,
 362         .num_displays = 1,
 363         .default_display = 0,
 364
 365         .lpcsel = 0x02,
 366         .gpccon = 0xaa9556a9,
 367         .gpccon_mask = 0xffc003fc,
 368         .gpcup = 0x0000ffff,
 369         .gpcup_mask = 0xffffffff,
 370
 371         .gpdcon = 0xaa90aaa1,
 372         .gpdcon_mask = 0xffc0fff0,
 373         .gpdup = 0x0000fcfd,
 374         .gpdup_mask = 0xffffffff,
 375
 376 };
 377
 378 static struct pwm_device *lcd_pwm;
 379
 380 static void rx1950_lcd_power(int enable)
 381 {
 382         int i;
 383         static int enabled;
 384         if (enabled == enable)
 385                 return;
 386         if (!enable) {
 387
 388                 /* GPC11-GPC15->OUTPUT */
 389                 for (i = 11; i < 16; i++)
 390                         gpio_direction_output(S3C2410_GPC(i), 1);
 391
 392                 /* Wait a bit here... */
 393                 mdelay(100);
 394
 395                 /* GPD2-GPD7->OUTPUT */
 396                 /* GPD11-GPD15->OUTPUT */
 397                 /* GPD2-GPD7->1, GPD11-GPD15->1 */
 398                 for (i = 2; i < 8; i++)
 399                         gpio_direction_output(S3C2410_GPD(i), 1);
 400                 for (i = 11; i < 16; i++)
 401                         gpio_direction_output(S3C2410_GPD(i), 1);
 402
 403                 /* Wait a bit here...*/
 404                 mdelay(100);
 405
 406                 /* GPB0->OUTPUT, GPB0->0 */
 407                 gpio_direction_output(S3C2410_GPB(0), 0);
 408
 409                 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
 410                 for (i = 1; i < 5; i++)
 411                         gpio_direction_output(S3C2410_GPC(i), 0);
 412
 413                 /* GPC15-GPC11->0 */
 414                 for (i = 11; i < 16; i++)
 415                         gpio_direction_output(S3C2410_GPC(i), 0);
 416
 417                 /* GPD15-GPD11->0, GPD2->GPD7->0 */
 418                 for (i = 11; i < 16; i++)
 419                         gpio_direction_output(S3C2410_GPD(i), 0);
 420
 421                 for (i = 2; i < 8; i++)
 422                         gpio_direction_output(S3C2410_GPD(i), 0);
 423
 424                 /* GPC6->0, GPC7->0, GPC5->0 */
 425                 gpio_direction_output(S3C2410_GPC(6), 0);
 426                 gpio_direction_output(S3C2410_GPC(7), 0);
 427                 gpio_direction_output(S3C2410_GPC(5), 0);
 428
 429                 /* GPB1->OUTPUT, GPB1->0 */
 430                 gpio_direction_output(S3C2410_GPB(1), 0);
 431                 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
 432                 pwm_disable(lcd_pwm);
 433
 434                 /* GPC0->0, GPC10->0 */
 435                 gpio_direction_output(S3C2410_GPC(0), 0);
 436                 gpio_direction_output(S3C2410_GPC(10), 0);
 437         } else {
 438                 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
 439                 pwm_enable(lcd_pwm);
 440
 441                 gpio_direction_output(S3C2410_GPC(0), 1);
 442                 gpio_direction_output(S3C2410_GPC(5), 1);
 443
 444                 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
 445                 gpio_direction_output(S3C2410_GPC(7), 1);
 446
 447                 for (i = 1; i < 5; i++)
 448                         s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
 449
 450                 for (i = 11; i < 16; i++)
 451                         s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
 452
 453                 for (i = 2; i < 8; i++)
 454                         s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
 455
 456                 for (i = 11; i < 16; i++)
 457                         s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
 458
 459                 gpio_direction_output(S3C2410_GPC(10), 1);
 460                 gpio_direction_output(S3C2410_GPC(6), 1);
 461         }
 462         enabled = enable;
 463 }
 464
 465 static void rx1950_bl_power(int enable)
 466 {
 467         static int enabled;
 468         if (enabled == enable)
 469                 return;
 470         if (!enable) {
 471                         gpio_direction_output(S3C2410_GPB(0), 0);
 472         } else {
 473                         /* LED driver need a "push" to power on */
 474                         gpio_direction_output(S3C2410_GPB(0), 1);
 475                         /* Warm up backlight for one period of PWM.
 476                          * Without this trick its almost impossible to
 477                          * enable backlight with low brightness value
 478                          */
 479                         ndelay(48000);
 480                         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 481         }
 482         enabled = enable;
 483 }
 484
 485 static int rx1950_backlight_init(struct device *dev)
 486 {
 487         WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
 488         lcd_pwm = pwm_request(1, "RX1950 LCD");
 489         if (IS_ERR(lcd_pwm)) {
 490                 dev_err(dev, "Unable to request PWM for LCD power!\n");
 491                 return PTR_ERR(lcd_pwm);
 492         }
 493
 494         rx1950_lcd_power(1);
 495         rx1950_bl_power(1);
 496
 497         return 0;
 498 }
 499
 500 static void rx1950_backlight_exit(struct device *dev)
 501 {
 502         rx1950_bl_power(0);
 503         rx1950_lcd_power(0);
 504
 505         pwm_free(lcd_pwm);
 506         gpio_free(S3C2410_GPB(0));
 507 }
 508
 509
 510 static int rx1950_backlight_notify(struct device *dev, int brightness)
 511 {
 512         if (!brightness) {
 513                 rx1950_bl_power(0);
 514                 rx1950_lcd_power(0);
 515         } else {
 516                 rx1950_lcd_power(1);
 517                 rx1950_bl_power(1);
 518         }
 519         return brightness;
 520 }
 521
 522 static struct platform_pwm_backlight_data rx1950_backlight_data = {
 523         .pwm_id = 0,
 524         .max_brightness = 24,
 525         .dft_brightness = 4,
 526         .pwm_period_ns = 48000,
 527         .enable_gpio = -1,
 528         .init = rx1950_backlight_init,
 529         .notify = rx1950_backlight_notify,
 530         .exit = rx1950_backlight_exit,
 531 };
 532
 533 static struct platform_device rx1950_backlight = {
 534         .name = "pwm-backlight",
 535         .dev = {
 536                 .parent = &samsung_device_pwm.dev,
 537                 .platform_data = &rx1950_backlight_data,
 538         },
 539 };
 540
 541 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 542 {
 543         switch (power_mode) {
 544         case MMC_POWER_OFF:
 545                 gpio_direction_output(S3C2410_GPJ(1), 0);
 546                 break;
 547         case MMC_POWER_UP:
 548         case MMC_POWER_ON:
 549                 gpio_direction_output(S3C2410_GPJ(1), 1);
 550                 break;
 551         default:
 552                 break;
 553         }
 554 }
 555
 556 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
 557         .gpio_detect = S3C2410_GPF(5),
 558         .gpio_wprotect = S3C2410_GPH(8),
 559         .set_power = rx1950_set_mmc_power,
 560         .ocr_avail = MMC_VDD_32_33,
 561 };
 562
 563 static struct mtd_partition rx1950_nand_part[] = {
 564         [0] = {
 565                         .name = "Boot0",
 566                         .offset = 0,
 567                         .size = 0x4000,
 568                         .mask_flags = MTD_WRITEABLE,
 569         },
 570         [1] = {
 571                         .name = "Boot1",
 572                         .offset = MTDPART_OFS_APPEND,
 573                         .size = 0x40000,
 574                         .mask_flags = MTD_WRITEABLE,
 575         },
 576         [2] = {
 577                         .name = "Kernel",
 578                         .offset = MTDPART_OFS_APPEND,
 579                         .size = 0x300000,
 580                         .mask_flags = 0,
 581         },
 582         [3] = {
 583                         .name = "Filesystem",
 584                         .offset = MTDPART_OFS_APPEND,
 585                         .size = MTDPART_SIZ_FULL,
 586                         .mask_flags = 0,
 587         },
 588 };
 589
 590 static struct s3c2410_nand_set rx1950_nand_sets[] = {
 591         [0] = {
 592                         .name = "Internal",
 593                         .nr_chips = 1,
 594                         .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
 595                         .partitions = rx1950_nand_part,
 596         },
 597 };
 598
 599 static struct s3c2410_platform_nand rx1950_nand_info = {
 600         .tacls = 25,
 601         .twrph0 = 50,
 602         .twrph1 = 15,
 603         .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
 604         .sets = rx1950_nand_sets,
 605 };
 606
 607 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
 608         .vbus_pin = S3C2410_GPG(5),
 609         .vbus_pin_inverted = 1,
 610         .pullup_pin = S3C2410_GPJ(5),
 611 };
 612
 613 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
 614         .delay = 10000,
 615         .presc = 49,
 616         .oversampling_shift = 3,
 617 };
 618
 619 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
 620         {
 621                 .code           = KEY_POWER,
 622                 .gpio           = S3C2410_GPF(0),
 623                 .active_low     = 1,
 624                 .desc           = "Power button",
 625                 .wakeup         = 1,
 626         },
 627         {
 628                 .code           = KEY_F5,
 629                 .gpio           = S3C2410_GPF(7),
 630                 .active_low     = 1,
 631                 .desc           = "Record button",
 632         },
 633         {
 634                 .code           = KEY_F1,
 635                 .gpio           = S3C2410_GPG(0),
 636                 .active_low     = 1,
 637                 .desc           = "Calendar button",
 638         },
 639         {
 640                 .code           = KEY_F2,
 641                 .gpio           = S3C2410_GPG(2),
 642                 .active_low     = 1,
 643                 .desc           = "Contacts button",
 644         },
 645         {
 646                 .code           = KEY_F3,
 647                 .gpio           = S3C2410_GPG(3),
 648                 .active_low     = 1,
 649                 .desc           = "Mail button",
 650         },
 651         {
 652                 .code           = KEY_F4,
 653                 .gpio           = S3C2410_GPG(7),
 654                 .active_low     = 1,
 655                 .desc           = "WLAN button",
 656         },
 657         {
 658                 .code           = KEY_LEFT,
 659                 .gpio           = S3C2410_GPG(10),
 660                 .active_low     = 1,
 661                 .desc           = "Left button",
 662         },
 663         {
 664                 .code           = KEY_RIGHT,
 665                 .gpio           = S3C2410_GPG(11),
 666                 .active_low     = 1,
 667                 .desc           = "Right button",
 668         },
 669         {
 670                 .code           = KEY_UP,
 671                 .gpio           = S3C2410_GPG(4),
 672                 .active_low     = 1,
 673                 .desc           = "Up button",
 674         },
 675         {
 676                 .code           = KEY_DOWN,
 677                 .gpio           = S3C2410_GPG(6),
 678                 .active_low     = 1,
 679                 .desc           = "Down button",
 680         },
 681         {
 682                 .code           = KEY_ENTER,
 683                 .gpio           = S3C2410_GPG(9),
 684                 .active_low     = 1,
 685                 .desc           = "Ok button"
 686         },
 687 };
 688
 689 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
 690         .buttons = rx1950_gpio_keys_table,
 691         .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
 692 };
 693
 694 static struct platform_device rx1950_device_gpiokeys = {
 695         .name = "gpio-keys",
 696         .dev.platform_data = &rx1950_gpio_keys_data,
 697 };
 698
 699 static struct uda1380_platform_data uda1380_info = {
 700         .gpio_power     = S3C2410_GPJ(0),
 701         .gpio_reset     = S3C2410_GPD(0),
 702         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 703 };
 704
 705 static struct i2c_board_info rx1950_i2c_devices[] = {
 706         {
 707                 I2C_BOARD_INFO("uda1380", 0x1a),
 708                 .platform_data = &uda1380_info,
 709         },
 710 };
 711
 712 static struct platform_device *rx1950_devices[] __initdata = {
 713         &s3c2410_device_dclk,
 714         &s3c_device_lcd,
 715         &s3c_device_wdt,
 716         &s3c_device_i2c0,
 717         &s3c_device_iis,
 718         &s3c_device_usbgadget,
 719         &s3c_device_rtc,
 720         &s3c_device_nand,
 721         &s3c_device_sdi,
 722         &s3c_device_adc,
 723         &s3c_device_ts,
 724         &samsung_device_pwm,
 725         &rx1950_backlight,
 726         &rx1950_device_gpiokeys,
 727         &power_supply,
 728         &rx1950_battery,
 729         &rx1950_leds,
 730 };
 731
 732 static void __init rx1950_map_io(void)
 733 {
 734         s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
 735         s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
 736         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 737
 738         /* setup PM */
 739
 740 #ifdef CONFIG_PM_H1940
 741         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
 742 #endif
 743
 744         s3c_pm_init();
 745 }
 746
 747 static void __init rx1950_init_time(void)
 748 {
 749         s3c2442_init_clocks(16934000);
 750         samsung_timer_init();
 751 }
 752
 753 static void __init rx1950_init_machine(void)
 754 {
 755         int i;
 756
 757         s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
 758         s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
 759         s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
 760         s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
 761         s3c_i2c0_set_platdata(NULL);
 762         s3c_nand_set_platdata(&rx1950_nand_info);
 763
 764         /* Turn off suspend on both USB ports, and switch the
 765          * selectable USB port to USB device mode. */
 766         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 767                                                 S3C2410_MISCCR_USBSUSPND0 |
 768                                                 S3C2410_MISCCR_USBSUSPND1, 0x0);
 769
 770         /* mmc power is disabled by default */
 771         WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
 772         gpio_direction_output(S3C2410_GPJ(1), 0);
 773
 774         for (i = 0; i < 8; i++)
 775                 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
 776
 777         for (i = 10; i < 16; i++)
 778                 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
 779
 780         for (i = 2; i < 8; i++)
 781                 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
 782
 783         for (i = 11; i < 16; i++)
 784                 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
 785
 786         WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
 787
 788         WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
 789         WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
 790         WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
 791         gpio_direction_output(S3C2410_GPA(3), 0);
 792         gpio_direction_output(S3C2410_GPA(4), 0);
 793         gpio_direction_output(S3C2410_GPJ(6), 0);
 794
 795         platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
 796
 797         i2c_register_board_info(0, rx1950_i2c_devices,
 798                 ARRAY_SIZE(rx1950_i2c_devices));
 799 }
 800
 801 /* H1940 and RX3715 need to reserve this for suspend */
 802 static void __init rx1950_reserve(void)
 803 {
 804         memblock_reserve(0x30003000, 0x1000);
 805         memblock_reserve(0x30081000, 0x1000);
 806 }
 807
 808 MACHINE_START(RX1950, "HP iPAQ RX1950")
 809     /* Maintainers: Vasily Khoruzhick */
 810         .atag_offset = 0x100,
 811         .map_io = rx1950_map_io,
 812         .reserve        = rx1950_reserve,
 813         .init_irq       = s3c2442_init_irq,
 814         .init_machine = rx1950_init_machine,
 815         .init_time      = rx1950_init_time,
 816 MACHINE_END