linux/arch/arm/mach-s3c24xx/mach-rx1950.c
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   1// SPDX-License-Identifier: GPL-2.0
   2//
   3// Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
   4// Copyright (c) 2007-2010 Vasily Khoruzhick
   5//
   6// based on smdk2440 written by Ben Dooks
   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/delay.h>
  14#include <linux/timer.h>
  15#include <linux/init.h>
  16#include <linux/gpio.h>
  17#include <linux/gpio/machine.h>
  18#include <linux/platform_device.h>
  19#include <linux/serial_core.h>
  20#include <linux/serial_s3c.h>
  21#include <linux/input.h>
  22#include <linux/gpio_keys.h>
  23#include <linux/device.h>
  24#include <linux/pda_power.h>
  25#include <linux/pwm_backlight.h>
  26#include <linux/pwm.h>
  27#include <linux/s3c_adc_battery.h>
  28#include <linux/leds.h>
  29#include <linux/i2c.h>
  30
  31#include <linux/mtd/mtd.h>
  32#include <linux/mtd/partitions.h>
  33
  34#include <linux/mmc/host.h>
  35
  36#include <asm/mach-types.h>
  37#include <asm/mach/arch.h>
  38#include <asm/mach/map.h>
  39
  40#include <linux/platform_data/i2c-s3c2410.h>
  41#include <linux/platform_data/mmc-s3cmci.h>
  42#include <linux/platform_data/mtd-nand-s3c2410.h>
  43#include <linux/platform_data/touchscreen-s3c2410.h>
  44#include <linux/platform_data/usb-s3c2410_udc.h>
  45
  46#include <sound/uda1380.h>
  47
  48#include <mach/fb.h>
  49#include <mach/regs-gpio.h>
  50#include <mach/regs-lcd.h>
  51#include <mach/gpio-samsung.h>
  52
  53#include <plat/cpu.h>
  54#include <plat/devs.h>
  55#include <plat/pm.h>
  56#include <plat/samsung-time.h>
  57#include <plat/gpio-cfg.h>
  58
  59#include "common.h"
  60#include "h1940.h"
  61
  62#define LCD_PWM_PERIOD 192960
  63#define LCD_PWM_DUTY 127353
  64
  65static struct map_desc rx1950_iodesc[] __initdata = {
  66};
  67
  68static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
  69        [0] = {
  70               .hwport = 0,
  71               .flags = 0,
  72               .ucon = 0x3c5,
  73               .ulcon = 0x03,
  74               .ufcon = 0x51,
  75                .clk_sel = S3C2410_UCON_CLKSEL3,
  76        },
  77        [1] = {
  78               .hwport = 1,
  79               .flags = 0,
  80               .ucon = 0x3c5,
  81               .ulcon = 0x03,
  82               .ufcon = 0x51,
  83                .clk_sel = S3C2410_UCON_CLKSEL3,
  84        },
  85        /* IR port */
  86        [2] = {
  87               .hwport = 2,
  88               .flags = 0,
  89               .ucon = 0x3c5,
  90               .ulcon = 0x43,
  91               .ufcon = 0xf1,
  92                .clk_sel = S3C2410_UCON_CLKSEL3,
  93        },
  94};
  95
  96static struct s3c2410fb_display rx1950_display = {
  97        .type = S3C2410_LCDCON1_TFT,
  98        .width = 240,
  99        .height = 320,
 100        .xres = 240,
 101        .yres = 320,
 102        .bpp = 16,
 103
 104        .pixclock = 260000,
 105        .left_margin = 10,
 106        .right_margin = 20,
 107        .hsync_len = 10,
 108        .upper_margin = 2,
 109        .lower_margin = 2,
 110        .vsync_len = 2,
 111
 112        .lcdcon5 = S3C2410_LCDCON5_FRM565 |
 113                           S3C2410_LCDCON5_INVVCLK |
 114                           S3C2410_LCDCON5_INVVLINE |
 115                           S3C2410_LCDCON5_INVVFRAME |
 116                           S3C2410_LCDCON5_HWSWP |
 117                           (0x02 << 13) |
 118                           (0x02 << 15),
 119
 120};
 121
 122static int power_supply_init(struct device *dev)
 123{
 124        return gpio_request(S3C2410_GPF(2), "cable plugged");
 125}
 126
 127static int rx1950_is_ac_online(void)
 128{
 129        return !gpio_get_value(S3C2410_GPF(2));
 130}
 131
 132static void power_supply_exit(struct device *dev)
 133{
 134        gpio_free(S3C2410_GPF(2));
 135}
 136
 137static char *rx1950_supplicants[] = {
 138        "main-battery"
 139};
 140
 141static struct pda_power_pdata power_supply_info = {
 142        .init                   = power_supply_init,
 143        .is_ac_online           = rx1950_is_ac_online,
 144        .exit                   = power_supply_exit,
 145        .supplied_to            = rx1950_supplicants,
 146        .num_supplicants        = ARRAY_SIZE(rx1950_supplicants),
 147};
 148
 149static struct resource power_supply_resources[] = {
 150        [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 151                        | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 152};
 153
 154static struct platform_device power_supply = {
 155        .name                   = "pda-power",
 156        .id                     = -1,
 157        .dev                    = {
 158                                        .platform_data =
 159                                                &power_supply_info,
 160        },
 161        .resource               = power_supply_resources,
 162        .num_resources          = ARRAY_SIZE(power_supply_resources),
 163};
 164
 165static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 166        { .volt = 4100, .cur = 156, .level = 100},
 167        { .volt = 4050, .cur = 156, .level = 95},
 168        { .volt = 4025, .cur = 141, .level = 90},
 169        { .volt = 3995, .cur = 144, .level = 85},
 170        { .volt = 3957, .cur = 162, .level = 80},
 171        { .volt = 3931, .cur = 147, .level = 75},
 172        { .volt = 3902, .cur = 147, .level = 70},
 173        { .volt = 3863, .cur = 153, .level = 65},
 174        { .volt = 3838, .cur = 150, .level = 60},
 175        { .volt = 3800, .cur = 153, .level = 55},
 176        { .volt = 3765, .cur = 153, .level = 50},
 177        { .volt = 3748, .cur = 172, .level = 45},
 178        { .volt = 3740, .cur = 153, .level = 40},
 179        { .volt = 3714, .cur = 175, .level = 35},
 180        { .volt = 3710, .cur = 156, .level = 30},
 181        { .volt = 3963, .cur = 156, .level = 25},
 182        { .volt = 3672, .cur = 178, .level = 20},
 183        { .volt = 3651, .cur = 178, .level = 15},
 184        { .volt = 3629, .cur = 178, .level = 10},
 185        { .volt = 3612, .cur = 162, .level = 5},
 186        { .volt = 3605, .cur = 162, .level = 0},
 187};
 188
 189static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 190        { .volt = 4200, .cur = 0, .level = 100},
 191        { .volt = 4190, .cur = 0, .level = 99},
 192        { .volt = 4178, .cur = 0, .level = 95},
 193        { .volt = 4110, .cur = 0, .level = 70},
 194        { .volt = 4076, .cur = 0, .level = 65},
 195        { .volt = 4046, .cur = 0, .level = 60},
 196        { .volt = 4021, .cur = 0, .level = 55},
 197        { .volt = 3999, .cur = 0, .level = 50},
 198        { .volt = 3982, .cur = 0, .level = 45},
 199        { .volt = 3965, .cur = 0, .level = 40},
 200        { .volt = 3957, .cur = 0, .level = 35},
 201        { .volt = 3948, .cur = 0, .level = 30},
 202        { .volt = 3936, .cur = 0, .level = 25},
 203        { .volt = 3927, .cur = 0, .level = 20},
 204        { .volt = 3906, .cur = 0, .level = 15},
 205        { .volt = 3880, .cur = 0, .level = 10},
 206        { .volt = 3829, .cur = 0, .level = 5},
 207        { .volt = 3820, .cur = 0, .level = 0},
 208};
 209
 210static int rx1950_bat_init(void)
 211{
 212        int ret;
 213
 214        ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
 215        if (ret)
 216                goto err_gpio1;
 217        ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
 218        if (ret)
 219                goto err_gpio2;
 220
 221        return 0;
 222
 223err_gpio2:
 224        gpio_free(S3C2410_GPJ(2));
 225err_gpio1:
 226        return ret;
 227}
 228
 229static void rx1950_bat_exit(void)
 230{
 231        gpio_free(S3C2410_GPJ(2));
 232        gpio_free(S3C2410_GPJ(3));
 233}
 234
 235static void rx1950_enable_charger(void)
 236{
 237        gpio_direction_output(S3C2410_GPJ(2), 1);
 238        gpio_direction_output(S3C2410_GPJ(3), 1);
 239}
 240
 241static void rx1950_disable_charger(void)
 242{
 243        gpio_direction_output(S3C2410_GPJ(2), 0);
 244        gpio_direction_output(S3C2410_GPJ(3), 0);
 245}
 246
 247static DEFINE_SPINLOCK(rx1950_blink_spin);
 248
 249static int rx1950_led_blink_set(struct gpio_desc *desc, int state,
 250        unsigned long *delay_on, unsigned long *delay_off)
 251{
 252        int gpio = desc_to_gpio(desc);
 253        int blink_gpio, check_gpio;
 254
 255        switch (gpio) {
 256        case S3C2410_GPA(6):
 257                blink_gpio = S3C2410_GPA(4);
 258                check_gpio = S3C2410_GPA(3);
 259                break;
 260        case S3C2410_GPA(7):
 261                blink_gpio = S3C2410_GPA(3);
 262                check_gpio = S3C2410_GPA(4);
 263                break;
 264        default:
 265                return -EINVAL;
 266                break;
 267        }
 268
 269        if (delay_on && delay_off && !*delay_on && !*delay_off)
 270                *delay_on = *delay_off = 500;
 271
 272        spin_lock(&rx1950_blink_spin);
 273
 274        switch (state) {
 275        case GPIO_LED_NO_BLINK_LOW:
 276        case GPIO_LED_NO_BLINK_HIGH:
 277                if (!gpio_get_value(check_gpio))
 278                        gpio_set_value(S3C2410_GPJ(6), 0);
 279                gpio_set_value(blink_gpio, 0);
 280                gpio_set_value(gpio, state);
 281                break;
 282        case GPIO_LED_BLINK:
 283                gpio_set_value(gpio, 0);
 284                gpio_set_value(S3C2410_GPJ(6), 1);
 285                gpio_set_value(blink_gpio, 1);
 286                break;
 287        }
 288
 289        spin_unlock(&rx1950_blink_spin);
 290
 291        return 0;
 292}
 293
 294static struct gpio_led rx1950_leds_desc[] = {
 295        {
 296                .name                   = "Green",
 297                .default_trigger        = "main-battery-full",
 298                .gpio                   = S3C2410_GPA(6),
 299                .retain_state_suspended = 1,
 300        },
 301        {
 302                .name                   = "Red",
 303                .default_trigger
 304                        = "main-battery-charging-blink-full-solid",
 305                .gpio                   = S3C2410_GPA(7),
 306                .retain_state_suspended = 1,
 307        },
 308        {
 309                .name                   = "Blue",
 310                .default_trigger        = "rx1950-acx-mem",
 311                .gpio                   = S3C2410_GPA(11),
 312                .retain_state_suspended = 1,
 313        },
 314};
 315
 316static struct gpio_led_platform_data rx1950_leds_pdata = {
 317        .num_leds       = ARRAY_SIZE(rx1950_leds_desc),
 318        .leds           = rx1950_leds_desc,
 319        .gpio_blink_set = rx1950_led_blink_set,
 320};
 321
 322static struct platform_device rx1950_leds = {
 323        .name   = "leds-gpio",
 324        .id             = -1,
 325        .dev    = {
 326                                .platform_data = &rx1950_leds_pdata,
 327        },
 328};
 329
 330static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
 331        .init = rx1950_bat_init,
 332        .exit = rx1950_bat_exit,
 333        .enable_charger = rx1950_enable_charger,
 334        .disable_charger = rx1950_disable_charger,
 335        .gpio_charge_finished = S3C2410_GPF(3),
 336        .lut_noac = bat_lut_noac,
 337        .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 338        .lut_acin = bat_lut_acin,
 339        .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 340        .volt_channel = 0,
 341        .current_channel = 1,
 342        .volt_mult = 4235,
 343        .current_mult = 2900,
 344        .internal_impedance = 200,
 345};
 346
 347static struct platform_device rx1950_battery = {
 348        .name             = "s3c-adc-battery",
 349        .id               = -1,
 350        .dev = {
 351                .parent = &s3c_device_adc.dev,
 352                .platform_data = &rx1950_bat_cfg,
 353        },
 354};
 355
 356static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
 357        .displays = &rx1950_display,
 358        .num_displays = 1,
 359        .default_display = 0,
 360
 361        .lpcsel = 0x02,
 362        .gpccon = 0xaa9556a9,
 363        .gpccon_mask = 0xffc003fc,
 364        .gpcup = 0x0000ffff,
 365        .gpcup_mask = 0xffffffff,
 366
 367        .gpdcon = 0xaa90aaa1,
 368        .gpdcon_mask = 0xffc0fff0,
 369        .gpdup = 0x0000fcfd,
 370        .gpdup_mask = 0xffffffff,
 371
 372};
 373
 374static struct pwm_lookup rx1950_pwm_lookup[] = {
 375        PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight.0", NULL, 48000,
 376                   PWM_POLARITY_NORMAL),
 377};
 378
 379static struct pwm_device *lcd_pwm;
 380
 381static void rx1950_lcd_power(int enable)
 382{
 383        int i;
 384        static int enabled;
 385        if (enabled == enable)
 386                return;
 387        if (!enable) {
 388
 389                /* GPC11-GPC15->OUTPUT */
 390                for (i = 11; i < 16; i++)
 391                        gpio_direction_output(S3C2410_GPC(i), 1);
 392
 393                /* Wait a bit here... */
 394                mdelay(100);
 395
 396                /* GPD2-GPD7->OUTPUT */
 397                /* GPD11-GPD15->OUTPUT */
 398                /* GPD2-GPD7->1, GPD11-GPD15->1 */
 399                for (i = 2; i < 8; i++)
 400                        gpio_direction_output(S3C2410_GPD(i), 1);
 401                for (i = 11; i < 16; i++)
 402                        gpio_direction_output(S3C2410_GPD(i), 1);
 403
 404                /* Wait a bit here...*/
 405                mdelay(100);
 406
 407                /* GPB0->OUTPUT, GPB0->0 */
 408                gpio_direction_output(S3C2410_GPB(0), 0);
 409
 410                /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
 411                for (i = 1; i < 5; i++)
 412                        gpio_direction_output(S3C2410_GPC(i), 0);
 413
 414                /* GPC15-GPC11->0 */
 415                for (i = 11; i < 16; i++)
 416                        gpio_direction_output(S3C2410_GPC(i), 0);
 417
 418                /* GPD15-GPD11->0, GPD2->GPD7->0 */
 419                for (i = 11; i < 16; i++)
 420                        gpio_direction_output(S3C2410_GPD(i), 0);
 421
 422                for (i = 2; i < 8; i++)
 423                        gpio_direction_output(S3C2410_GPD(i), 0);
 424
 425                /* GPC6->0, GPC7->0, GPC5->0 */
 426                gpio_direction_output(S3C2410_GPC(6), 0);
 427                gpio_direction_output(S3C2410_GPC(7), 0);
 428                gpio_direction_output(S3C2410_GPC(5), 0);
 429
 430                /* GPB1->OUTPUT, GPB1->0 */
 431                gpio_direction_output(S3C2410_GPB(1), 0);
 432                pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
 433                pwm_disable(lcd_pwm);
 434
 435                /* GPC0->0, GPC10->0 */
 436                gpio_direction_output(S3C2410_GPC(0), 0);
 437                gpio_direction_output(S3C2410_GPC(10), 0);
 438        } else {
 439                pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
 440                pwm_enable(lcd_pwm);
 441
 442                gpio_direction_output(S3C2410_GPC(0), 1);
 443                gpio_direction_output(S3C2410_GPC(5), 1);
 444
 445                s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
 446                gpio_direction_output(S3C2410_GPC(7), 1);
 447
 448                for (i = 1; i < 5; i++)
 449                        s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
 450
 451                for (i = 11; i < 16; i++)
 452                        s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
 453
 454                for (i = 2; i < 8; i++)
 455                        s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
 456
 457                for (i = 11; i < 16; i++)
 458                        s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
 459
 460                gpio_direction_output(S3C2410_GPC(10), 1);
 461                gpio_direction_output(S3C2410_GPC(6), 1);
 462        }
 463        enabled = enable;
 464}
 465
 466static void rx1950_bl_power(int enable)
 467{
 468        static int enabled;
 469        if (enabled == enable)
 470                return;
 471        if (!enable) {
 472                        gpio_direction_output(S3C2410_GPB(0), 0);
 473        } else {
 474                        /* LED driver need a "push" to power on */
 475                        gpio_direction_output(S3C2410_GPB(0), 1);
 476                        /* Warm up backlight for one period of PWM.
 477                         * Without this trick its almost impossible to
 478                         * enable backlight with low brightness value
 479                         */
 480                        ndelay(48000);
 481                        s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 482        }
 483        enabled = enable;
 484}
 485
 486static int rx1950_backlight_init(struct device *dev)
 487{
 488        WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
 489        lcd_pwm = pwm_request(1, "RX1950 LCD");
 490        if (IS_ERR(lcd_pwm)) {
 491                dev_err(dev, "Unable to request PWM for LCD power!\n");
 492                return PTR_ERR(lcd_pwm);
 493        }
 494
 495        /*
 496         * FIXME: pwm_apply_args() should be removed when switching to
 497         * the atomic PWM API.
 498         */
 499        pwm_apply_args(lcd_pwm);
 500
 501        rx1950_lcd_power(1);
 502        rx1950_bl_power(1);
 503
 504        return 0;
 505}
 506
 507static void rx1950_backlight_exit(struct device *dev)
 508{
 509        rx1950_bl_power(0);
 510        rx1950_lcd_power(0);
 511
 512        pwm_free(lcd_pwm);
 513        gpio_free(S3C2410_GPB(0));
 514}
 515
 516
 517static int rx1950_backlight_notify(struct device *dev, int brightness)
 518{
 519        if (!brightness) {
 520                rx1950_bl_power(0);
 521                rx1950_lcd_power(0);
 522        } else {
 523                rx1950_lcd_power(1);
 524                rx1950_bl_power(1);
 525        }
 526        return brightness;
 527}
 528
 529static struct platform_pwm_backlight_data rx1950_backlight_data = {
 530        .max_brightness = 24,
 531        .dft_brightness = 4,
 532        .enable_gpio = -1,
 533        .init = rx1950_backlight_init,
 534        .notify = rx1950_backlight_notify,
 535        .exit = rx1950_backlight_exit,
 536};
 537
 538static struct platform_device rx1950_backlight = {
 539        .name = "pwm-backlight",
 540        .dev = {
 541                .parent = &samsung_device_pwm.dev,
 542                .platform_data = &rx1950_backlight_data,
 543        },
 544};
 545
 546static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 547{
 548        switch (power_mode) {
 549        case MMC_POWER_OFF:
 550                gpio_direction_output(S3C2410_GPJ(1), 0);
 551                break;
 552        case MMC_POWER_UP:
 553        case MMC_POWER_ON:
 554                gpio_direction_output(S3C2410_GPJ(1), 1);
 555                break;
 556        default:
 557                break;
 558        }
 559}
 560
 561static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
 562        .set_power = rx1950_set_mmc_power,
 563        .ocr_avail = MMC_VDD_32_33,
 564};
 565
 566static struct gpiod_lookup_table rx1950_mmc_gpio_table = {
 567        .dev_id = "s3c2410-sdi",
 568        .table = {
 569                /* Card detect S3C2410_GPF(5) */
 570                GPIO_LOOKUP("GPF", 5, "cd", GPIO_ACTIVE_LOW),
 571                /* Write protect S3C2410_GPH(8) */
 572                GPIO_LOOKUP("GPH", 8, "wp", GPIO_ACTIVE_LOW),
 573                { },
 574        },
 575};
 576
 577static struct mtd_partition rx1950_nand_part[] = {
 578        [0] = {
 579                        .name = "Boot0",
 580                        .offset = 0,
 581                        .size = 0x4000,
 582                        .mask_flags = MTD_WRITEABLE,
 583        },
 584        [1] = {
 585                        .name = "Boot1",
 586                        .offset = MTDPART_OFS_APPEND,
 587                        .size = 0x40000,
 588                        .mask_flags = MTD_WRITEABLE,
 589        },
 590        [2] = {
 591                        .name = "Kernel",
 592                        .offset = MTDPART_OFS_APPEND,
 593                        .size = 0x300000,
 594                        .mask_flags = 0,
 595        },
 596        [3] = {
 597                        .name = "Filesystem",
 598                        .offset = MTDPART_OFS_APPEND,
 599                        .size = MTDPART_SIZ_FULL,
 600                        .mask_flags = 0,
 601        },
 602};
 603
 604static struct s3c2410_nand_set rx1950_nand_sets[] = {
 605        [0] = {
 606                        .name = "Internal",
 607                        .nr_chips = 1,
 608                        .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
 609                        .partitions = rx1950_nand_part,
 610        },
 611};
 612
 613static struct s3c2410_platform_nand rx1950_nand_info = {
 614        .tacls = 25,
 615        .twrph0 = 50,
 616        .twrph1 = 15,
 617        .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
 618        .sets = rx1950_nand_sets,
 619        .ecc_mode = NAND_ECC_SOFT,
 620};
 621
 622static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
 623        .vbus_pin = S3C2410_GPG(5),
 624        .vbus_pin_inverted = 1,
 625        .pullup_pin = S3C2410_GPJ(5),
 626};
 627
 628static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
 629        .delay = 10000,
 630        .presc = 49,
 631        .oversampling_shift = 3,
 632};
 633
 634static struct gpio_keys_button rx1950_gpio_keys_table[] = {
 635        {
 636                .code           = KEY_POWER,
 637                .gpio           = S3C2410_GPF(0),
 638                .active_low     = 1,
 639                .desc           = "Power button",
 640                .wakeup         = 1,
 641        },
 642        {
 643                .code           = KEY_F5,
 644                .gpio           = S3C2410_GPF(7),
 645                .active_low     = 1,
 646                .desc           = "Record button",
 647        },
 648        {
 649                .code           = KEY_F1,
 650                .gpio           = S3C2410_GPG(0),
 651                .active_low     = 1,
 652                .desc           = "Calendar button",
 653        },
 654        {
 655                .code           = KEY_F2,
 656                .gpio           = S3C2410_GPG(2),
 657                .active_low     = 1,
 658                .desc           = "Contacts button",
 659        },
 660        {
 661                .code           = KEY_F3,
 662                .gpio           = S3C2410_GPG(3),
 663                .active_low     = 1,
 664                .desc           = "Mail button",
 665        },
 666        {
 667                .code           = KEY_F4,
 668                .gpio           = S3C2410_GPG(7),
 669                .active_low     = 1,
 670                .desc           = "WLAN button",
 671        },
 672        {
 673                .code           = KEY_LEFT,
 674                .gpio           = S3C2410_GPG(10),
 675                .active_low     = 1,
 676                .desc           = "Left button",
 677        },
 678        {
 679                .code           = KEY_RIGHT,
 680                .gpio           = S3C2410_GPG(11),
 681                .active_low     = 1,
 682                .desc           = "Right button",
 683        },
 684        {
 685                .code           = KEY_UP,
 686                .gpio           = S3C2410_GPG(4),
 687                .active_low     = 1,
 688                .desc           = "Up button",
 689        },
 690        {
 691                .code           = KEY_DOWN,
 692                .gpio           = S3C2410_GPG(6),
 693                .active_low     = 1,
 694                .desc           = "Down button",
 695        },
 696        {
 697                .code           = KEY_ENTER,
 698                .gpio           = S3C2410_GPG(9),
 699                .active_low     = 1,
 700                .desc           = "Ok button"
 701        },
 702};
 703
 704static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
 705        .buttons = rx1950_gpio_keys_table,
 706        .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
 707};
 708
 709static struct platform_device rx1950_device_gpiokeys = {
 710        .name = "gpio-keys",
 711        .dev.platform_data = &rx1950_gpio_keys_data,
 712};
 713
 714static struct uda1380_platform_data uda1380_info = {
 715        .gpio_power     = S3C2410_GPJ(0),
 716        .gpio_reset     = S3C2410_GPD(0),
 717        .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 718};
 719
 720static struct i2c_board_info rx1950_i2c_devices[] = {
 721        {
 722                I2C_BOARD_INFO("uda1380", 0x1a),
 723                .platform_data = &uda1380_info,
 724        },
 725};
 726
 727static struct platform_device *rx1950_devices[] __initdata = {
 728        &s3c2410_device_dclk,
 729        &s3c_device_lcd,
 730        &s3c_device_wdt,
 731        &s3c_device_i2c0,
 732        &s3c_device_iis,
 733        &s3c_device_usbgadget,
 734        &s3c_device_rtc,
 735        &s3c_device_nand,
 736        &s3c_device_sdi,
 737        &s3c_device_adc,
 738        &s3c_device_ts,
 739        &samsung_device_pwm,
 740        &rx1950_backlight,
 741        &rx1950_device_gpiokeys,
 742        &power_supply,
 743        &rx1950_battery,
 744        &rx1950_leds,
 745};
 746
 747static void __init rx1950_map_io(void)
 748{
 749        s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
 750        s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
 751        samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 752
 753        /* setup PM */
 754
 755#ifdef CONFIG_PM_H1940
 756        memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
 757#endif
 758
 759        s3c_pm_init();
 760}
 761
 762static void __init rx1950_init_time(void)
 763{
 764        s3c2442_init_clocks(16934000);
 765        samsung_timer_init();
 766}
 767
 768static void __init rx1950_init_machine(void)
 769{
 770        int i;
 771
 772        s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
 773        s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
 774        s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
 775        gpiod_add_lookup_table(&rx1950_mmc_gpio_table);
 776        s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
 777        s3c_i2c0_set_platdata(NULL);
 778        s3c_nand_set_platdata(&rx1950_nand_info);
 779
 780        /* Turn off suspend on both USB ports, and switch the
 781         * selectable USB port to USB device mode. */
 782        s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 783                                                S3C2410_MISCCR_USBSUSPND0 |
 784                                                S3C2410_MISCCR_USBSUSPND1, 0x0);
 785
 786        /* mmc power is disabled by default */
 787        WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
 788        gpio_direction_output(S3C2410_GPJ(1), 0);
 789
 790        for (i = 0; i < 8; i++)
 791                WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
 792
 793        for (i = 10; i < 16; i++)
 794                WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
 795
 796        for (i = 2; i < 8; i++)
 797                WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
 798
 799        for (i = 11; i < 16; i++)
 800                WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
 801
 802        WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
 803
 804        WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
 805        WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
 806        WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
 807        gpio_direction_output(S3C2410_GPA(3), 0);
 808        gpio_direction_output(S3C2410_GPA(4), 0);
 809        gpio_direction_output(S3C2410_GPJ(6), 0);
 810
 811        pwm_add_table(rx1950_pwm_lookup, ARRAY_SIZE(rx1950_pwm_lookup));
 812        platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
 813
 814        i2c_register_board_info(0, rx1950_i2c_devices,
 815                ARRAY_SIZE(rx1950_i2c_devices));
 816}
 817
 818/* H1940 and RX3715 need to reserve this for suspend */
 819static void __init rx1950_reserve(void)
 820{
 821        memblock_reserve(0x30003000, 0x1000);
 822        memblock_reserve(0x30081000, 0x1000);
 823}
 824
 825MACHINE_START(RX1950, "HP iPAQ RX1950")
 826    /* Maintainers: Vasily Khoruzhick */
 827        .atag_offset = 0x100,
 828        .map_io = rx1950_map_io,
 829        .reserve        = rx1950_reserve,
 830        .init_irq       = s3c2442_init_irq,
 831        .init_machine = rx1950_init_machine,
 832        .init_time      = rx1950_init_time,
 833MACHINE_END
 834