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/input.h>
  25 #include <linux/gpio_keys.h>
  26 #include <linux/device.h>
  27 #include <linux/pda_power.h>
  28 #include <linux/pwm_backlight.h>
  29 #include <linux/pwm.h>
  30 #include <linux/s3c_adc_battery.h>
  31 #include <linux/leds.h>
  32 #include <linux/i2c.h>
  33
  34 #include <linux/mtd/mtd.h>
  35 #include <linux/mtd/partitions.h>
  36
  37 #include <linux/mmc/host.h>
  38
  39 #include <asm/mach-types.h>
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/map.h>
  42
  43 #include <linux/platform_data/i2c-s3c2410.h>
  44 #include <linux/platform_data/mmc-s3cmci.h>
  45 #include <linux/platform_data/mtd-nand-s3c2410.h>
  46 #include <linux/platform_data/touchscreen-s3c2410.h>
  47 #include <linux/platform_data/usb-s3c2410_udc.h>
  48
  49 #include <sound/uda1380.h>
  50
  51 #include <mach/fb.h>
  52 #include <mach/regs-gpio.h>
  53 #include <mach/regs-lcd.h>
  54
  55 #include <plat/clock.h>
  56 #include <plat/cpu.h>
  57 #include <plat/devs.h>
  58 #include <plat/pm.h>
  59 #include <plat/regs-serial.h>
  60 #include <plat/samsung-time.h>
  61
  62 #include "common.h"
  63 #include "h1940.h"
  64
  65 #define LCD_PWM_PERIOD 192960
  66 #define LCD_PWM_DUTY 127353
  67
  68 static struct map_desc rx1950_iodesc[] __initdata = {
  69 };
  70
  71 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
  72         [0] = {
  73                .hwport = 0,
  74                .flags = 0,
  75                .ucon = 0x3c5,
  76                .ulcon = 0x03,
  77                .ufcon = 0x51,
  78                 .clk_sel = S3C2410_UCON_CLKSEL3,
  79         },
  80         [1] = {
  81                .hwport = 1,
  82                .flags = 0,
  83                .ucon = 0x3c5,
  84                .ulcon = 0x03,
  85                .ufcon = 0x51,
  86                 .clk_sel = S3C2410_UCON_CLKSEL3,
  87         },
  88         /* IR port */
  89         [2] = {
  90                .hwport = 2,
  91                .flags = 0,
  92                .ucon = 0x3c5,
  93                .ulcon = 0x43,
  94                .ufcon = 0xf1,
  95                 .clk_sel = S3C2410_UCON_CLKSEL3,
  96         },
  97 };
  98
  99 static struct s3c2410fb_display rx1950_display = {
 100         .type = S3C2410_LCDCON1_TFT,
 101         .width = 240,
 102         .height = 320,
 103         .xres = 240,
 104         .yres = 320,
 105         .bpp = 16,
 106
 107         .pixclock = 260000,
 108         .left_margin = 10,
 109         .right_margin = 20,
 110         .hsync_len = 10,
 111         .upper_margin = 2,
 112         .lower_margin = 2,
 113         .vsync_len = 2,
 114
 115         .lcdcon5 = S3C2410_LCDCON5_FRM565 |
 116                            S3C2410_LCDCON5_INVVCLK |
 117                            S3C2410_LCDCON5_INVVLINE |
 118                            S3C2410_LCDCON5_INVVFRAME |
 119                            S3C2410_LCDCON5_HWSWP |
 120                            (0x02 << 13) |
 121                            (0x02 << 15),
 122
 123 };
 124
 125 static int power_supply_init(struct device *dev)
 126 {
 127         return gpio_request(S3C2410_GPF(2), "cable plugged");
 128 }
 129
 130 static int rx1950_is_ac_online(void)
 131 {
 132         return !gpio_get_value(S3C2410_GPF(2));
 133 }
 134
 135 static void power_supply_exit(struct device *dev)
 136 {
 137         gpio_free(S3C2410_GPF(2));
 138 }
 139
 140 static char *rx1950_supplicants[] = {
 141         "main-battery"
 142 };
 143
 144 static struct pda_power_pdata power_supply_info = {
 145         .init                   = power_supply_init,
 146         .is_ac_online           = rx1950_is_ac_online,
 147         .exit                   = power_supply_exit,
 148         .supplied_to            = rx1950_supplicants,
 149         .num_supplicants        = ARRAY_SIZE(rx1950_supplicants),
 150 };
 151
 152 static struct resource power_supply_resources[] = {
 153         [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 154                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 155 };
 156
 157 static struct platform_device power_supply = {
 158         .name                   = "pda-power",
 159         .id                     = -1,
 160         .dev                    = {
 161                                         .platform_data =
 162                                                 &power_supply_info,
 163         },
 164         .resource               = power_supply_resources,
 165         .num_resources          = ARRAY_SIZE(power_supply_resources),
 166 };
 167
 168 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 169         { .volt = 4100, .cur = 156, .level = 100},
 170         { .volt = 4050, .cur = 156, .level = 95},
 171         { .volt = 4025, .cur = 141, .level = 90},
 172         { .volt = 3995, .cur = 144, .level = 85},
 173         { .volt = 3957, .cur = 162, .level = 80},
 174         { .volt = 3931, .cur = 147, .level = 75},
 175         { .volt = 3902, .cur = 147, .level = 70},
 176         { .volt = 3863, .cur = 153, .level = 65},
 177         { .volt = 3838, .cur = 150, .level = 60},
 178         { .volt = 3800, .cur = 153, .level = 55},
 179         { .volt = 3765, .cur = 153, .level = 50},
 180         { .volt = 3748, .cur = 172, .level = 45},
 181         { .volt = 3740, .cur = 153, .level = 40},
 182         { .volt = 3714, .cur = 175, .level = 35},
 183         { .volt = 3710, .cur = 156, .level = 30},
 184         { .volt = 3963, .cur = 156, .level = 25},
 185         { .volt = 3672, .cur = 178, .level = 20},
 186         { .volt = 3651, .cur = 178, .level = 15},
 187         { .volt = 3629, .cur = 178, .level = 10},
 188         { .volt = 3612, .cur = 162, .level = 5},
 189         { .volt = 3605, .cur = 162, .level = 0},
 190 };
 191
 192 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 193         { .volt = 4200, .cur = 0, .level = 100},
 194         { .volt = 4190, .cur = 0, .level = 99},
 195         { .volt = 4178, .cur = 0, .level = 95},
 196         { .volt = 4110, .cur = 0, .level = 70},
 197         { .volt = 4076, .cur = 0, .level = 65},
 198         { .volt = 4046, .cur = 0, .level = 60},
 199         { .volt = 4021, .cur = 0, .level = 55},
 200         { .volt = 3999, .cur = 0, .level = 50},
 201         { .volt = 3982, .cur = 0, .level = 45},
 202         { .volt = 3965, .cur = 0, .level = 40},
 203         { .volt = 3957, .cur = 0, .level = 35},
 204         { .volt = 3948, .cur = 0, .level = 30},
 205         { .volt = 3936, .cur = 0, .level = 25},
 206         { .volt = 3927, .cur = 0, .level = 20},
 207         { .volt = 3906, .cur = 0, .level = 15},
 208         { .volt = 3880, .cur = 0, .level = 10},
 209         { .volt = 3829, .cur = 0, .level = 5},
 210         { .volt = 3820, .cur = 0, .level = 0},
 211 };
 212
 213 static int rx1950_bat_init(void)
 214 {
 215         int ret;
 216
 217         ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
 218         if (ret)
 219                 goto err_gpio1;
 220         ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
 221         if (ret)
 222                 goto err_gpio2;
 223
 224         return 0;
 225
 226 err_gpio2:
 227         gpio_free(S3C2410_GPJ(2));
 228 err_gpio1:
 229         return ret;
 230 }
 231
 232 static void rx1950_bat_exit(void)
 233 {
 234         gpio_free(S3C2410_GPJ(2));
 235         gpio_free(S3C2410_GPJ(3));
 236 }
 237
 238 static void rx1950_enable_charger(void)
 239 {
 240         gpio_direction_output(S3C2410_GPJ(2), 1);
 241         gpio_direction_output(S3C2410_GPJ(3), 1);
 242 }
 243
 244 static void rx1950_disable_charger(void)
 245 {
 246         gpio_direction_output(S3C2410_GPJ(2), 0);
 247         gpio_direction_output(S3C2410_GPJ(3), 0);
 248 }
 249
 250 static DEFINE_SPINLOCK(rx1950_blink_spin);
 251
 252 static int rx1950_led_blink_set(unsigned gpio, int state,
 253         unsigned long *delay_on, unsigned long *delay_off)
 254 {
 255         int blink_gpio, check_gpio;
 256
 257         switch (gpio) {
 258         case S3C2410_GPA(6):
 259                 blink_gpio = S3C2410_GPA(4);
 260                 check_gpio = S3C2410_GPA(3);
 261                 break;
 262         case S3C2410_GPA(7):
 263                 blink_gpio = S3C2410_GPA(3);
 264                 check_gpio = S3C2410_GPA(4);
 265                 break;
 266         default:
 267                 return -EINVAL;
 268                 break;
 269         }
 270
 271         if (delay_on && delay_off && !*delay_on && !*delay_off)
 272                 *delay_on = *delay_off = 500;
 273
 274         spin_lock(&rx1950_blink_spin);
 275
 276         switch (state) {
 277         case GPIO_LED_NO_BLINK_LOW:
 278         case GPIO_LED_NO_BLINK_HIGH:
 279                 if (!gpio_get_value(check_gpio))
 280                         gpio_set_value(S3C2410_GPJ(6), 0);
 281                 gpio_set_value(blink_gpio, 0);
 282                 gpio_set_value(gpio, state);
 283                 break;
 284         case GPIO_LED_BLINK:
 285                 gpio_set_value(gpio, 0);
 286                 gpio_set_value(S3C2410_GPJ(6), 1);
 287                 gpio_set_value(blink_gpio, 1);
 288                 break;
 289         }
 290
 291         spin_unlock(&rx1950_blink_spin);
 292
 293         return 0;
 294 }
 295
 296 static struct gpio_led rx1950_leds_desc[] = {
 297         {
 298                 .name                   = "Green",
 299                 .default_trigger        = "main-battery-full",
 300                 .gpio                   = S3C2410_GPA(6),
 301                 .retain_state_suspended = 1,
 302         },
 303         {
 304                 .name                   = "Red",
 305                 .default_trigger
 306                         = "main-battery-charging-blink-full-solid",
 307                 .gpio                   = S3C2410_GPA(7),
 308                 .retain_state_suspended = 1,
 309         },
 310         {
 311                 .name                   = "Blue",
 312                 .default_trigger        = "rx1950-acx-mem",
 313                 .gpio                   = S3C2410_GPA(11),
 314                 .retain_state_suspended = 1,
 315         },
 316 };
 317
 318 static struct gpio_led_platform_data rx1950_leds_pdata = {
 319         .num_leds       = ARRAY_SIZE(rx1950_leds_desc),
 320         .leds           = rx1950_leds_desc,
 321         .gpio_blink_set = rx1950_led_blink_set,
 322 };
 323
 324 static struct platform_device rx1950_leds = {
 325         .name   = "leds-gpio",
 326         .id             = -1,
 327         .dev    = {
 328                                 .platform_data = &rx1950_leds_pdata,
 329         },
 330 };
 331
 332 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
 333         .init = rx1950_bat_init,
 334         .exit = rx1950_bat_exit,
 335         .enable_charger = rx1950_enable_charger,
 336         .disable_charger = rx1950_disable_charger,
 337         .gpio_charge_finished = S3C2410_GPF(3),
 338         .lut_noac = bat_lut_noac,
 339         .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 340         .lut_acin = bat_lut_acin,
 341         .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 342         .volt_channel = 0,
 343         .current_channel = 1,
 344         .volt_mult = 4235,
 345         .current_mult = 2900,
 346         .internal_impedance = 200,
 347 };
 348
 349 static struct platform_device rx1950_battery = {
 350         .name             = "s3c-adc-battery",
 351         .id               = -1,
 352         .dev = {
 353                 .parent = &s3c_device_adc.dev,
 354                 .platform_data = &rx1950_bat_cfg,
 355         },
 356 };
 357
 358 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
 359         .displays = &rx1950_display,
 360         .num_displays = 1,
 361         .default_display = 0,
 362
 363         .lpcsel = 0x02,
 364         .gpccon = 0xaa9556a9,
 365         .gpccon_mask = 0xffc003fc,
 366         .gpcup = 0x0000ffff,
 367         .gpcup_mask = 0xffffffff,
 368
 369         .gpdcon = 0xaa90aaa1,
 370         .gpdcon_mask = 0xffc0fff0,
 371         .gpdup = 0x0000fcfd,
 372         .gpdup_mask = 0xffffffff,
 373
 374 };
 375
 376 static struct pwm_device *lcd_pwm;
 377
 378 static void rx1950_lcd_power(int enable)
 379 {
 380         int i;
 381         static int enabled;
 382         if (enabled == enable)
 383                 return;
 384         if (!enable) {
 385
 386                 /* GPC11-GPC15->OUTPUT */
 387                 for (i = 11; i < 16; i++)
 388                         gpio_direction_output(S3C2410_GPC(i), 1);
 389
 390                 /* Wait a bit here... */
 391                 mdelay(100);
 392
 393                 /* GPD2-GPD7->OUTPUT */
 394                 /* GPD11-GPD15->OUTPUT */
 395                 /* GPD2-GPD7->1, GPD11-GPD15->1 */
 396                 for (i = 2; i < 8; i++)
 397                         gpio_direction_output(S3C2410_GPD(i), 1);
 398                 for (i = 11; i < 16; i++)
 399                         gpio_direction_output(S3C2410_GPD(i), 1);
 400
 401                 /* Wait a bit here...*/
 402                 mdelay(100);
 403
 404                 /* GPB0->OUTPUT, GPB0->0 */
 405                 gpio_direction_output(S3C2410_GPB(0), 0);
 406
 407                 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
 408                 for (i = 1; i < 5; i++)
 409                         gpio_direction_output(S3C2410_GPC(i), 0);
 410
 411                 /* GPC15-GPC11->0 */
 412                 for (i = 11; i < 16; i++)
 413                         gpio_direction_output(S3C2410_GPC(i), 0);
 414
 415                 /* GPD15-GPD11->0, GPD2->GPD7->0 */
 416                 for (i = 11; i < 16; i++)
 417                         gpio_direction_output(S3C2410_GPD(i), 0);
 418
 419                 for (i = 2; i < 8; i++)
 420                         gpio_direction_output(S3C2410_GPD(i), 0);
 421
 422                 /* GPC6->0, GPC7->0, GPC5->0 */
 423                 gpio_direction_output(S3C2410_GPC(6), 0);
 424                 gpio_direction_output(S3C2410_GPC(7), 0);
 425                 gpio_direction_output(S3C2410_GPC(5), 0);
 426
 427                 /* GPB1->OUTPUT, GPB1->0 */
 428                 gpio_direction_output(S3C2410_GPB(1), 0);
 429                 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
 430                 pwm_disable(lcd_pwm);
 431
 432                 /* GPC0->0, GPC10->0 */
 433                 gpio_direction_output(S3C2410_GPC(0), 0);
 434                 gpio_direction_output(S3C2410_GPC(10), 0);
 435         } else {
 436                 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
 437                 pwm_enable(lcd_pwm);
 438
 439                 gpio_direction_output(S3C2410_GPC(0), 1);
 440                 gpio_direction_output(S3C2410_GPC(5), 1);
 441
 442                 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
 443                 gpio_direction_output(S3C2410_GPC(7), 1);
 444
 445                 for (i = 1; i < 5; i++)
 446                         s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
 447
 448                 for (i = 11; i < 16; i++)
 449                         s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
 450
 451                 for (i = 2; i < 8; i++)
 452                         s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
 453
 454                 for (i = 11; i < 16; i++)
 455                         s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
 456
 457                 gpio_direction_output(S3C2410_GPC(10), 1);
 458                 gpio_direction_output(S3C2410_GPC(6), 1);
 459         }
 460         enabled = enable;
 461 }
 462
 463 static void rx1950_bl_power(int enable)
 464 {
 465         static int enabled;
 466         if (enabled == enable)
 467                 return;
 468         if (!enable) {
 469                         gpio_direction_output(S3C2410_GPB(0), 0);
 470         } else {
 471                         /* LED driver need a "push" to power on */
 472                         gpio_direction_output(S3C2410_GPB(0), 1);
 473                         /* Warm up backlight for one period of PWM.
 474                          * Without this trick its almost impossible to
 475                          * enable backlight with low brightness value
 476                          */
 477                         ndelay(48000);
 478                         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 479         }
 480         enabled = enable;
 481 }
 482
 483 static int rx1950_backlight_init(struct device *dev)
 484 {
 485         WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
 486         lcd_pwm = pwm_request(1, "RX1950 LCD");
 487         if (IS_ERR(lcd_pwm)) {
 488                 dev_err(dev, "Unable to request PWM for LCD power!\n");
 489                 return PTR_ERR(lcd_pwm);
 490         }
 491
 492         rx1950_lcd_power(1);
 493         rx1950_bl_power(1);
 494
 495         return 0;
 496 }
 497
 498 static void rx1950_backlight_exit(struct device *dev)
 499 {
 500         rx1950_bl_power(0);
 501         rx1950_lcd_power(0);
 502
 503         pwm_free(lcd_pwm);
 504         gpio_free(S3C2410_GPB(0));
 505 }
 506
 507
 508 static int rx1950_backlight_notify(struct device *dev, int brightness)
 509 {
 510         if (!brightness) {
 511                 rx1950_bl_power(0);
 512                 rx1950_lcd_power(0);
 513         } else {
 514                 rx1950_lcd_power(1);
 515                 rx1950_bl_power(1);
 516         }
 517         return brightness;
 518 }
 519
 520 static struct platform_pwm_backlight_data rx1950_backlight_data = {
 521         .pwm_id = 0,
 522         .max_brightness = 24,
 523         .dft_brightness = 4,
 524         .pwm_period_ns = 48000,
 525         .init = rx1950_backlight_init,
 526         .notify = rx1950_backlight_notify,
 527         .exit = rx1950_backlight_exit,
 528 };
 529
 530 static struct platform_device rx1950_backlight = {
 531         .name = "pwm-backlight",
 532         .dev = {
 533                 .parent = &s3c_device_timer[0].dev,
 534                 .platform_data = &rx1950_backlight_data,
 535         },
 536 };
 537
 538 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 539 {
 540         switch (power_mode) {
 541         case MMC_POWER_OFF:
 542                 gpio_direction_output(S3C2410_GPJ(1), 0);
 543                 break;
 544         case MMC_POWER_UP:
 545         case MMC_POWER_ON:
 546                 gpio_direction_output(S3C2410_GPJ(1), 1);
 547                 break;
 548         default:
 549                 break;
 550         }
 551 }
 552
 553 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
 554         .gpio_detect = S3C2410_GPF(5),
 555         .gpio_wprotect = S3C2410_GPH(8),
 556         .set_power = rx1950_set_mmc_power,
 557         .ocr_avail = MMC_VDD_32_33,
 558 };
 559
 560 static struct mtd_partition rx1950_nand_part[] = {
 561         [0] = {
 562                         .name = "Boot0",
 563                         .offset = 0,
 564                         .size = 0x4000,
 565                         .mask_flags = MTD_WRITEABLE,
 566         },
 567         [1] = {
 568                         .name = "Boot1",
 569                         .offset = MTDPART_OFS_APPEND,
 570                         .size = 0x40000,
 571                         .mask_flags = MTD_WRITEABLE,
 572         },
 573         [2] = {
 574                         .name = "Kernel",
 575                         .offset = MTDPART_OFS_APPEND,
 576                         .size = 0x300000,
 577                         .mask_flags = 0,
 578         },
 579         [3] = {
 580                         .name = "Filesystem",
 581                         .offset = MTDPART_OFS_APPEND,
 582                         .size = MTDPART_SIZ_FULL,
 583                         .mask_flags = 0,
 584         },
 585 };
 586
 587 static struct s3c2410_nand_set rx1950_nand_sets[] = {
 588         [0] = {
 589                         .name = "Internal",
 590                         .nr_chips = 1,
 591                         .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
 592                         .partitions = rx1950_nand_part,
 593         },
 594 };
 595
 596 static struct s3c2410_platform_nand rx1950_nand_info = {
 597         .tacls = 25,
 598         .twrph0 = 50,
 599         .twrph1 = 15,
 600         .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
 601         .sets = rx1950_nand_sets,
 602 };
 603
 604 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
 605         .vbus_pin = S3C2410_GPG(5),
 606         .vbus_pin_inverted = 1,
 607         .pullup_pin = S3C2410_GPJ(5),
 608 };
 609
 610 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
 611         .delay = 10000,
 612         .presc = 49,
 613         .oversampling_shift = 3,
 614 };
 615
 616 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
 617         {
 618                 .code           = KEY_POWER,
 619                 .gpio           = S3C2410_GPF(0),
 620                 .active_low     = 1,
 621                 .desc           = "Power button",
 622                 .wakeup         = 1,
 623         },
 624         {
 625                 .code           = KEY_F5,
 626                 .gpio           = S3C2410_GPF(7),
 627                 .active_low     = 1,
 628                 .desc           = "Record button",
 629         },
 630         {
 631                 .code           = KEY_F1,
 632                 .gpio           = S3C2410_GPG(0),
 633                 .active_low     = 1,
 634                 .desc           = "Calendar button",
 635         },
 636         {
 637                 .code           = KEY_F2,
 638                 .gpio           = S3C2410_GPG(2),
 639                 .active_low     = 1,
 640                 .desc           = "Contacts button",
 641         },
 642         {
 643                 .code           = KEY_F3,
 644                 .gpio           = S3C2410_GPG(3),
 645                 .active_low     = 1,
 646                 .desc           = "Mail button",
 647         },
 648         {
 649                 .code           = KEY_F4,
 650                 .gpio           = S3C2410_GPG(7),
 651                 .active_low     = 1,
 652                 .desc           = "WLAN button",
 653         },
 654         {
 655                 .code           = KEY_LEFT,
 656                 .gpio           = S3C2410_GPG(10),
 657                 .active_low     = 1,
 658                 .desc           = "Left button",
 659         },
 660         {
 661                 .code           = KEY_RIGHT,
 662                 .gpio           = S3C2410_GPG(11),
 663                 .active_low     = 1,
 664                 .desc           = "Right button",
 665         },
 666         {
 667                 .code           = KEY_UP,
 668                 .gpio           = S3C2410_GPG(4),
 669                 .active_low     = 1,
 670                 .desc           = "Up button",
 671         },
 672         {
 673                 .code           = KEY_DOWN,
 674                 .gpio           = S3C2410_GPG(6),
 675                 .active_low     = 1,
 676                 .desc           = "Down button",
 677         },
 678         {
 679                 .code           = KEY_ENTER,
 680                 .gpio           = S3C2410_GPG(9),
 681                 .active_low     = 1,
 682                 .desc           = "Ok button"
 683         },
 684 };
 685
 686 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
 687         .buttons = rx1950_gpio_keys_table,
 688         .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
 689 };
 690
 691 static struct platform_device rx1950_device_gpiokeys = {
 692         .name = "gpio-keys",
 693         .dev.platform_data = &rx1950_gpio_keys_data,
 694 };
 695
 696 static struct uda1380_platform_data uda1380_info = {
 697         .gpio_power     = S3C2410_GPJ(0),
 698         .gpio_reset     = S3C2410_GPD(0),
 699         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 700 };
 701
 702 static struct i2c_board_info rx1950_i2c_devices[] = {
 703         {
 704                 I2C_BOARD_INFO("uda1380", 0x1a),
 705                 .platform_data = &uda1380_info,
 706         },
 707 };
 708
 709 static struct platform_device *rx1950_devices[] __initdata = {
 710         &s3c_device_lcd,
 711         &s3c_device_wdt,
 712         &s3c_device_i2c0,
 713         &s3c_device_iis,
 714         &s3c_device_usbgadget,
 715         &s3c_device_rtc,
 716         &s3c_device_nand,
 717         &s3c_device_sdi,
 718         &s3c_device_adc,
 719         &s3c_device_ts,
 720         &s3c_device_timer[0],
 721         &s3c_device_timer[1],
 722         &rx1950_backlight,
 723         &rx1950_device_gpiokeys,
 724         &power_supply,
 725         &rx1950_battery,
 726         &rx1950_leds,
 727 };
 728
 729 static struct clk *rx1950_clocks[] __initdata = {
 730         &s3c24xx_clkout0,
 731         &s3c24xx_clkout1,
 732 };
 733
 734 static void __init rx1950_map_io(void)
 735 {
 736         s3c24xx_clkout0.parent  = &clk_h;
 737         s3c24xx_clkout1.parent  = &clk_f;
 738
 739         s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
 740
 741         s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
 742         s3c24xx_init_clocks(16934000);
 743         s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
 744         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 745
 746         /* setup PM */
 747
 748 #ifdef CONFIG_PM_H1940
 749         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
 750 #endif
 751
 752         s3c_pm_init();
 753 }
 754
 755 static void __init rx1950_init_machine(void)
 756 {
 757         int i;
 758
 759         s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
 760         s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
 761         s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
 762         s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
 763         s3c_i2c0_set_platdata(NULL);
 764         s3c_nand_set_platdata(&rx1950_nand_info);
 765
 766         /* Turn off suspend on both USB ports, and switch the
 767          * selectable USB port to USB device mode. */
 768         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 769                                                 S3C2410_MISCCR_USBSUSPND0 |
 770                                                 S3C2410_MISCCR_USBSUSPND1, 0x0);
 771
 772         /* mmc power is disabled by default */
 773         WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
 774         gpio_direction_output(S3C2410_GPJ(1), 0);
 775
 776         for (i = 0; i < 8; i++)
 777                 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
 778
 779         for (i = 10; i < 16; i++)
 780                 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
 781
 782         for (i = 2; i < 8; i++)
 783                 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
 784
 785         for (i = 11; i < 16; i++)
 786                 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
 787
 788         WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
 789
 790         WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
 791         WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
 792         WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
 793         gpio_direction_output(S3C2410_GPA(3), 0);
 794         gpio_direction_output(S3C2410_GPA(4), 0);
 795         gpio_direction_output(S3C2410_GPJ(6), 0);
 796
 797         platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
 798
 799         i2c_register_board_info(0, rx1950_i2c_devices,
 800                 ARRAY_SIZE(rx1950_i2c_devices));
 801 }
 802
 803 /* H1940 and RX3715 need to reserve this for suspend */
 804 static void __init rx1950_reserve(void)
 805 {
 806         memblock_reserve(0x30003000, 0x1000);
 807         memblock_reserve(0x30081000, 0x1000);
 808 }
 809
 810 MACHINE_START(RX1950, "HP iPAQ RX1950")
 811     /* Maintainers: Vasily Khoruzhick */
 812         .atag_offset = 0x100,
 813         .map_io = rx1950_map_io,
 814         .reserve        = rx1950_reserve,
 815         .init_irq       = s3c2442_init_irq,
 816         .init_machine = rx1950_init_machine,
 817         .init_time      = samsung_timer_init,
 818         .restart        = s3c244x_restart,
 819 MACHINE_END