linux/arch/arm/mach-s3c24xx/mach-h1940.c
<<
>>
Prefs
   1/*
   2 * Copyright (c) 2003-2005 Simtec Electronics
   3 *   Ben Dooks <ben@simtec.co.uk>
   4 *
   5 * http://www.handhelds.org/projects/h1940.html
   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/timer.h>
  19#include <linux/init.h>
  20#include <linux/device.h>
  21#include <linux/serial_core.h>
  22#include <linux/serial_s3c.h>
  23#include <linux/platform_device.h>
  24#include <linux/io.h>
  25#include <linux/gpio.h>
  26#include <linux/input.h>
  27#include <linux/gpio_keys.h>
  28#include <linux/pwm.h>
  29#include <linux/pwm_backlight.h>
  30#include <linux/i2c.h>
  31#include <linux/leds.h>
  32#include <linux/pda_power.h>
  33#include <linux/s3c_adc_battery.h>
  34#include <linux/delay.h>
  35
  36#include <video/platform_lcd.h>
  37
  38#include <linux/mmc/host.h>
  39#include <linux/export.h>
  40
  41#include <asm/irq.h>
  42#include <asm/mach-types.h>
  43#include <asm/mach/arch.h>
  44#include <asm/mach/map.h>
  45#include <asm/mach/irq.h>
  46
  47#include <linux/platform_data/i2c-s3c2410.h>
  48#include <linux/platform_data/mmc-s3cmci.h>
  49#include <linux/platform_data/touchscreen-s3c2410.h>
  50#include <linux/platform_data/usb-s3c2410_udc.h>
  51
  52#include <sound/uda1380.h>
  53
  54#include <mach/fb.h>
  55#include <mach/hardware.h>
  56#include <mach/regs-clock.h>
  57#include <mach/regs-gpio.h>
  58#include <mach/regs-lcd.h>
  59#include <mach/gpio-samsung.h>
  60
  61#include <plat/cpu.h>
  62#include <plat/devs.h>
  63#include <plat/gpio-cfg.h>
  64#include <plat/pm.h>
  65#include <plat/samsung-time.h>
  66
  67#include "common.h"
  68#include "h1940.h"
  69
  70#define H1940_LATCH             ((void __force __iomem *)0xF8000000)
  71
  72#define H1940_PA_LATCH          S3C2410_CS2
  73
  74#define H1940_LATCH_BIT(x)      (1 << ((x) + 16 - S3C_GPIO_END))
  75
  76#define S3C24XX_PLL_MDIV_SHIFT         (12)
  77#define S3C24XX_PLL_PDIV_SHIFT         (4)
  78#define S3C24XX_PLL_SDIV_SHIFT         (0)
  79
  80static struct map_desc h1940_iodesc[] __initdata = {
  81        [0] = {
  82                .virtual        = (unsigned long)H1940_LATCH,
  83                .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  84                .length         = SZ_16K,
  85                .type           = MT_DEVICE
  86        },
  87};
  88
  89#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  90#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  91#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  92
  93static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  94        [0] = {
  95                .hwport      = 0,
  96                .flags       = 0,
  97                .ucon        = 0x3c5,
  98                .ulcon       = 0x03,
  99                .ufcon       = 0x51,
 100        },
 101        [1] = {
 102                .hwport      = 1,
 103                .flags       = 0,
 104                .ucon        = 0x245,
 105                .ulcon       = 0x03,
 106                .ufcon       = 0x00,
 107        },
 108        /* IR port */
 109        [2] = {
 110                .hwport      = 2,
 111                .flags       = 0,
 112                .uart_flags  = UPF_CONS_FLOW,
 113                .ucon        = 0x3c5,
 114                .ulcon       = 0x43,
 115                .ufcon       = 0x51,
 116        }
 117};
 118
 119/* Board control latch control */
 120
 121static unsigned int latch_state;
 122
 123static void h1940_latch_control(unsigned int clear, unsigned int set)
 124{
 125        unsigned long flags;
 126
 127        local_irq_save(flags);
 128
 129        latch_state &= ~clear;
 130        latch_state |= set;
 131
 132        __raw_writel(latch_state, H1940_LATCH);
 133
 134        local_irq_restore(flags);
 135}
 136
 137static inline int h1940_gpiolib_to_latch(int offset)
 138{
 139        return 1 << (offset + 16);
 140}
 141
 142static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
 143                                        unsigned offset, int value)
 144{
 145        int latch_bit = h1940_gpiolib_to_latch(offset);
 146
 147        h1940_latch_control(value ? 0 : latch_bit,
 148                value ? latch_bit : 0);
 149}
 150
 151static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
 152                                        unsigned offset, int value)
 153{
 154        h1940_gpiolib_latch_set(chip, offset, value);
 155        return 0;
 156}
 157
 158static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
 159                                        unsigned offset)
 160{
 161        return (latch_state >> (offset + 16)) & 1;
 162}
 163
 164static struct gpio_chip h1940_latch_gpiochip = {
 165        .base                   = H1940_LATCH_GPIO(0),
 166        .owner                  = THIS_MODULE,
 167        .label                  = "H1940_LATCH",
 168        .ngpio                  = 16,
 169        .direction_output       = h1940_gpiolib_latch_output,
 170        .set                    = h1940_gpiolib_latch_set,
 171        .get                    = h1940_gpiolib_latch_get,
 172};
 173
 174static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 175        .vbus_pin               = S3C2410_GPG(5),
 176        .vbus_pin_inverted      = 1,
 177        .pullup_pin             = H1940_LATCH_USB_DP,
 178};
 179
 180static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 181                .delay = 10000,
 182                .presc = 49,
 183                .oversampling_shift = 2,
 184                .cfg_gpio = s3c24xx_ts_cfg_gpio,
 185};
 186
 187/**
 188 * Set lcd on or off
 189 **/
 190static struct s3c2410fb_display h1940_lcd __initdata = {
 191        .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 192                        S3C2410_LCDCON5_INVVLINE | \
 193                        S3C2410_LCDCON5_HWSWP,
 194
 195        .type =         S3C2410_LCDCON1_TFT,
 196        .width =        240,
 197        .height =       320,
 198        .pixclock =     260000,
 199        .xres =         240,
 200        .yres =         320,
 201        .bpp =          16,
 202        .left_margin =  8,
 203        .right_margin = 20,
 204        .hsync_len =    4,
 205        .upper_margin = 8,
 206        .lower_margin = 7,
 207        .vsync_len =    1,
 208};
 209
 210static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 211        .displays = &h1940_lcd,
 212        .num_displays = 1,
 213        .default_display = 0,
 214
 215        .lpcsel =       0x02,
 216        .gpccon =       0xaa940659,
 217        .gpccon_mask =  0xffffc0f0,
 218        .gpcup =        0x0000ffff,
 219        .gpcup_mask =   0xffffffff,
 220        .gpdcon =       0xaa84aaa0,
 221        .gpdcon_mask =  0xffffffff,
 222        .gpdup =        0x0000faff,
 223        .gpdup_mask =   0xffffffff,
 224};
 225
 226static int power_supply_init(struct device *dev)
 227{
 228        return gpio_request(S3C2410_GPF(2), "cable plugged");
 229}
 230
 231static int h1940_is_ac_online(void)
 232{
 233        return !gpio_get_value(S3C2410_GPF(2));
 234}
 235
 236static void power_supply_exit(struct device *dev)
 237{
 238        gpio_free(S3C2410_GPF(2));
 239}
 240
 241static char *h1940_supplicants[] = {
 242        "main-battery",
 243        "backup-battery",
 244};
 245
 246static struct pda_power_pdata power_supply_info = {
 247        .init                   = power_supply_init,
 248        .is_ac_online           = h1940_is_ac_online,
 249        .exit                   = power_supply_exit,
 250        .supplied_to            = h1940_supplicants,
 251        .num_supplicants        = ARRAY_SIZE(h1940_supplicants),
 252};
 253
 254static struct resource power_supply_resources[] = {
 255        [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 256                        | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 257};
 258
 259static struct platform_device power_supply = {
 260        .name           = "pda-power",
 261        .id             = -1,
 262        .dev            = {
 263                                .platform_data =
 264                                        &power_supply_info,
 265        },
 266        .resource       = power_supply_resources,
 267        .num_resources  = ARRAY_SIZE(power_supply_resources),
 268};
 269
 270static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 271        { .volt = 4070, .cur = 162, .level = 100},
 272        { .volt = 4040, .cur = 165, .level = 95},
 273        { .volt = 4016, .cur = 164, .level = 90},
 274        { .volt = 3996, .cur = 166, .level = 85},
 275        { .volt = 3971, .cur = 168, .level = 80},
 276        { .volt = 3951, .cur = 168, .level = 75},
 277        { .volt = 3931, .cur = 170, .level = 70},
 278        { .volt = 3903, .cur = 172, .level = 65},
 279        { .volt = 3886, .cur = 172, .level = 60},
 280        { .volt = 3858, .cur = 176, .level = 55},
 281        { .volt = 3842, .cur = 176, .level = 50},
 282        { .volt = 3818, .cur = 176, .level = 45},
 283        { .volt = 3789, .cur = 180, .level = 40},
 284        { .volt = 3769, .cur = 180, .level = 35},
 285        { .volt = 3749, .cur = 184, .level = 30},
 286        { .volt = 3732, .cur = 184, .level = 25},
 287        { .volt = 3716, .cur = 184, .level = 20},
 288        { .volt = 3708, .cur = 184, .level = 15},
 289        { .volt = 3716, .cur = 96, .level = 10},
 290        { .volt = 3700, .cur = 96, .level = 5},
 291        { .volt = 3684, .cur = 96, .level = 0},
 292};
 293
 294static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 295        { .volt = 4130, .cur = 0, .level = 100},
 296        { .volt = 3982, .cur = 0, .level = 50},
 297        { .volt = 3854, .cur = 0, .level = 10},
 298        { .volt = 3841, .cur = 0, .level = 0},
 299};
 300
 301static int h1940_bat_init(void)
 302{
 303        int ret;
 304
 305        ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
 306        if (ret)
 307                return ret;
 308        gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
 309
 310        return 0;
 311
 312}
 313
 314static void h1940_bat_exit(void)
 315{
 316        gpio_free(H1940_LATCH_SM803_ENABLE);
 317}
 318
 319static void h1940_enable_charger(void)
 320{
 321        gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
 322}
 323
 324static void h1940_disable_charger(void)
 325{
 326        gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
 327}
 328
 329static struct s3c_adc_bat_pdata h1940_bat_cfg = {
 330        .init = h1940_bat_init,
 331        .exit = h1940_bat_exit,
 332        .enable_charger = h1940_enable_charger,
 333        .disable_charger = h1940_disable_charger,
 334        .gpio_charge_finished = S3C2410_GPF(3),
 335        .gpio_inverted = 1,
 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 = 4056,
 343        .current_mult = 1893,
 344        .internal_impedance = 200,
 345        .backup_volt_channel = 3,
 346        /* TODO Check backup volt multiplier */
 347        .backup_volt_mult = 4056,
 348        .backup_volt_min = 0,
 349        .backup_volt_max = 4149288
 350};
 351
 352static struct platform_device h1940_battery = {
 353        .name             = "s3c-adc-battery",
 354        .id               = -1,
 355        .dev = {
 356                .parent = &s3c_device_adc.dev,
 357                .platform_data = &h1940_bat_cfg,
 358        },
 359};
 360
 361static DEFINE_SPINLOCK(h1940_blink_spin);
 362
 363int h1940_led_blink_set(struct gpio_desc *desc, int state,
 364        unsigned long *delay_on, unsigned long *delay_off)
 365{
 366        int blink_gpio, check_gpio1, check_gpio2;
 367        int gpio = desc ? desc_to_gpio(desc) : -EINVAL;
 368
 369        switch (gpio) {
 370        case H1940_LATCH_LED_GREEN:
 371                blink_gpio = S3C2410_GPA(7);
 372                check_gpio1 = S3C2410_GPA(1);
 373                check_gpio2 = S3C2410_GPA(3);
 374                break;
 375        case H1940_LATCH_LED_RED:
 376                blink_gpio = S3C2410_GPA(1);
 377                check_gpio1 = S3C2410_GPA(7);
 378                check_gpio2 = S3C2410_GPA(3);
 379                break;
 380        default:
 381                blink_gpio = S3C2410_GPA(3);
 382                check_gpio1 = S3C2410_GPA(1);
 383                check_gpio2 = S3C2410_GPA(7);
 384                break;
 385        }
 386
 387        if (delay_on && delay_off && !*delay_on && !*delay_off)
 388                *delay_on = *delay_off = 500;
 389
 390        spin_lock(&h1940_blink_spin);
 391
 392        switch (state) {
 393        case GPIO_LED_NO_BLINK_LOW:
 394        case GPIO_LED_NO_BLINK_HIGH:
 395                if (!gpio_get_value(check_gpio1) &&
 396                    !gpio_get_value(check_gpio2))
 397                        gpio_set_value(H1940_LATCH_LED_FLASH, 0);
 398                gpio_set_value(blink_gpio, 0);
 399                if (gpio_is_valid(gpio))
 400                        gpio_set_value(gpio, state);
 401                break;
 402        case GPIO_LED_BLINK:
 403                if (gpio_is_valid(gpio))
 404                        gpio_set_value(gpio, 0);
 405                gpio_set_value(H1940_LATCH_LED_FLASH, 1);
 406                gpio_set_value(blink_gpio, 1);
 407                break;
 408        }
 409
 410        spin_unlock(&h1940_blink_spin);
 411
 412        return 0;
 413}
 414EXPORT_SYMBOL(h1940_led_blink_set);
 415
 416static struct gpio_led h1940_leds_desc[] = {
 417        {
 418                .name                   = "Green",
 419                .default_trigger        = "main-battery-full",
 420                .gpio                   = H1940_LATCH_LED_GREEN,
 421                .retain_state_suspended = 1,
 422        },
 423        {
 424                .name                   = "Red",
 425                .default_trigger
 426                        = "main-battery-charging-blink-full-solid",
 427                .gpio                   = H1940_LATCH_LED_RED,
 428                .retain_state_suspended = 1,
 429        },
 430};
 431
 432static struct gpio_led_platform_data h1940_leds_pdata = {
 433        .num_leds       = ARRAY_SIZE(h1940_leds_desc),
 434        .leds           = h1940_leds_desc,
 435        .gpio_blink_set = h1940_led_blink_set,
 436};
 437
 438static struct platform_device h1940_device_leds = {
 439        .name   = "leds-gpio",
 440        .id     = -1,
 441        .dev    = {
 442                        .platform_data = &h1940_leds_pdata,
 443        },
 444};
 445
 446static struct platform_device h1940_device_bluetooth = {
 447        .name             = "h1940-bt",
 448        .id               = -1,
 449};
 450
 451static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 452{
 453        switch (power_mode) {
 454        case MMC_POWER_OFF:
 455                gpio_set_value(H1940_LATCH_SD_POWER, 0);
 456                break;
 457        case MMC_POWER_UP:
 458        case MMC_POWER_ON:
 459                gpio_set_value(H1940_LATCH_SD_POWER, 1);
 460                break;
 461        default:
 462                break;
 463        }
 464}
 465
 466static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
 467        .gpio_detect   = S3C2410_GPF(5),
 468        .gpio_wprotect = S3C2410_GPH(8),
 469        .set_power     = h1940_set_mmc_power,
 470        .ocr_avail     = MMC_VDD_32_33,
 471};
 472
 473static struct pwm_lookup h1940_pwm_lookup[] = {
 474        PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
 475                   PWM_POLARITY_NORMAL),
 476};
 477
 478static int h1940_backlight_init(struct device *dev)
 479{
 480        gpio_request(S3C2410_GPB(0), "Backlight");
 481
 482        gpio_direction_output(S3C2410_GPB(0), 0);
 483        s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 484        s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 485        gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 486
 487        return 0;
 488}
 489
 490static int h1940_backlight_notify(struct device *dev, int brightness)
 491{
 492        if (!brightness) {
 493                gpio_direction_output(S3C2410_GPB(0), 1);
 494                gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 495        } else {
 496                gpio_direction_output(S3C2410_GPB(0), 0);
 497                s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 498                s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 499                gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 500        }
 501        return brightness;
 502}
 503
 504static void h1940_backlight_exit(struct device *dev)
 505{
 506        gpio_direction_output(S3C2410_GPB(0), 1);
 507        gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 508}
 509
 510
 511static struct platform_pwm_backlight_data backlight_data = {
 512        .max_brightness = 100,
 513        .dft_brightness = 50,
 514        .enable_gpio    = -1,
 515        .init           = h1940_backlight_init,
 516        .notify         = h1940_backlight_notify,
 517        .exit           = h1940_backlight_exit,
 518};
 519
 520static struct platform_device h1940_backlight = {
 521        .name = "pwm-backlight",
 522        .dev  = {
 523                .parent = &samsung_device_pwm.dev,
 524                .platform_data = &backlight_data,
 525        },
 526        .id   = -1,
 527};
 528
 529static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 530                                        unsigned int power)
 531{
 532        int value, retries = 100;
 533
 534        if (!power) {
 535                gpio_set_value(S3C2410_GPC(0), 0);
 536                /* wait for 3ac */
 537                do {
 538                        value = gpio_get_value(S3C2410_GPC(6));
 539                } while (value && retries--);
 540
 541                gpio_set_value(H1940_LATCH_LCD_P2, 0);
 542                gpio_set_value(H1940_LATCH_LCD_P3, 0);
 543                gpio_set_value(H1940_LATCH_LCD_P4, 0);
 544
 545                gpio_direction_output(S3C2410_GPC(1), 0);
 546                gpio_direction_output(S3C2410_GPC(4), 0);
 547
 548                gpio_set_value(H1940_LATCH_LCD_P1, 0);
 549                gpio_set_value(H1940_LATCH_LCD_P0, 0);
 550
 551                gpio_set_value(S3C2410_GPC(5), 0);
 552
 553        } else {
 554                gpio_set_value(H1940_LATCH_LCD_P0, 1);
 555                gpio_set_value(H1940_LATCH_LCD_P1, 1);
 556
 557                gpio_direction_input(S3C2410_GPC(1));
 558                gpio_direction_input(S3C2410_GPC(4));
 559                mdelay(10);
 560                s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 561                s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
 562
 563                gpio_set_value(S3C2410_GPC(5), 1);
 564                gpio_set_value(S3C2410_GPC(0), 1);
 565
 566                gpio_set_value(H1940_LATCH_LCD_P3, 1);
 567                gpio_set_value(H1940_LATCH_LCD_P2, 1);
 568                gpio_set_value(H1940_LATCH_LCD_P4, 1);
 569        }
 570}
 571
 572static struct plat_lcd_data h1940_lcd_power_data = {
 573        .set_power      = h1940_lcd_power_set,
 574};
 575
 576static struct platform_device h1940_lcd_powerdev = {
 577        .name                   = "platform-lcd",
 578        .dev.parent             = &s3c_device_lcd.dev,
 579        .dev.platform_data      = &h1940_lcd_power_data,
 580};
 581
 582static struct uda1380_platform_data uda1380_info = {
 583        .gpio_power     = H1940_LATCH_UDA_POWER,
 584        .gpio_reset     = S3C2410_GPA(12),
 585        .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 586};
 587
 588static struct i2c_board_info h1940_i2c_devices[] = {
 589        {
 590                I2C_BOARD_INFO("uda1380", 0x1a),
 591                .platform_data = &uda1380_info,
 592        },
 593};
 594
 595#define DECLARE_BUTTON(p, k, n, w)      \
 596        {                               \
 597                .gpio           = p,    \
 598                .code           = k,    \
 599                .desc           = n,    \
 600                .wakeup         = w,    \
 601                .active_low     = 1,    \
 602        }
 603
 604static struct gpio_keys_button h1940_buttons[] = {
 605        DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 606        DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 607        DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 608        DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 609        DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 610        DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 611        DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 612        DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 613        DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 614        DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 615        DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 616};
 617
 618static struct gpio_keys_platform_data h1940_buttons_data = {
 619        .buttons        = h1940_buttons,
 620        .nbuttons       = ARRAY_SIZE(h1940_buttons),
 621};
 622
 623static struct platform_device h1940_dev_buttons = {
 624        .name           = "gpio-keys",
 625        .id             = -1,
 626        .dev            = {
 627                .platform_data  = &h1940_buttons_data,
 628        }
 629};
 630
 631static struct platform_device *h1940_devices[] __initdata = {
 632        &h1940_dev_buttons,
 633        &s3c_device_ohci,
 634        &s3c_device_lcd,
 635        &s3c_device_wdt,
 636        &s3c_device_i2c0,
 637        &s3c_device_iis,
 638        &s3c_device_usbgadget,
 639        &h1940_device_leds,
 640        &h1940_device_bluetooth,
 641        &s3c_device_sdi,
 642        &s3c_device_rtc,
 643        &samsung_device_pwm,
 644        &h1940_backlight,
 645        &h1940_lcd_powerdev,
 646        &s3c_device_adc,
 647        &s3c_device_ts,
 648        &power_supply,
 649        &h1940_battery,
 650};
 651
 652static void __init h1940_map_io(void)
 653{
 654        s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 655        s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 656        samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 657
 658        /* setup PM */
 659
 660#ifdef CONFIG_PM_H1940
 661        memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 662#endif
 663        s3c_pm_init();
 664
 665        /* Add latch gpio chip, set latch initial value */
 666        h1940_latch_control(0, 0);
 667        WARN_ON(gpiochip_add_data(&h1940_latch_gpiochip, NULL));
 668}
 669
 670static void __init h1940_init_time(void)
 671{
 672        s3c2410_init_clocks(12000000);
 673        samsung_timer_init();
 674}
 675
 676/* H1940 and RX3715 need to reserve this for suspend */
 677static void __init h1940_reserve(void)
 678{
 679        memblock_reserve(0x30003000, 0x1000);
 680        memblock_reserve(0x30081000, 0x1000);
 681}
 682
 683static void __init h1940_init(void)
 684{
 685        u32 tmp;
 686
 687        s3c24xx_fb_set_platdata(&h1940_fb_info);
 688        s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 689        s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 690        s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 691        s3c_i2c0_set_platdata(NULL);
 692
 693        /* Turn off suspend on both USB ports, and switch the
 694         * selectable USB port to USB device mode. */
 695
 696        s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 697                              S3C2410_MISCCR_USBSUSPND0 |
 698                              S3C2410_MISCCR_USBSUSPND1, 0x0);
 699
 700        tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
 701              | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
 702              | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
 703        writel(tmp, S3C2410_UPLLCON);
 704
 705        gpio_request(S3C2410_GPC(0), "LCD power");
 706        gpio_request(S3C2410_GPC(1), "LCD power");
 707        gpio_request(S3C2410_GPC(4), "LCD power");
 708        gpio_request(S3C2410_GPC(5), "LCD power");
 709        gpio_request(S3C2410_GPC(6), "LCD power");
 710        gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 711        gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 712        gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 713        gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 714        gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 715        gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 716        gpio_direction_output(S3C2410_GPC(0), 0);
 717        gpio_direction_output(S3C2410_GPC(1), 0);
 718        gpio_direction_output(S3C2410_GPC(4), 0);
 719        gpio_direction_output(S3C2410_GPC(5), 0);
 720        gpio_direction_input(S3C2410_GPC(6));
 721        gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 722        gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 723        gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 724        gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 725        gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 726        gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 727
 728        gpio_request(H1940_LATCH_SD_POWER, "SD power");
 729        gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 730
 731        pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
 732        platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 733
 734        gpio_request(S3C2410_GPA(1), "Red LED blink");
 735        gpio_request(S3C2410_GPA(3), "Blue LED blink");
 736        gpio_request(S3C2410_GPA(7), "Green LED blink");
 737        gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 738        gpio_direction_output(S3C2410_GPA(1), 0);
 739        gpio_direction_output(S3C2410_GPA(3), 0);
 740        gpio_direction_output(S3C2410_GPA(7), 0);
 741        gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
 742
 743        i2c_register_board_info(0, h1940_i2c_devices,
 744                ARRAY_SIZE(h1940_i2c_devices));
 745}
 746
 747MACHINE_START(H1940, "IPAQ-H1940")
 748        /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 749        .atag_offset    = 0x100,
 750        .map_io         = h1940_map_io,
 751        .reserve        = h1940_reserve,
 752        .init_irq       = s3c2410_init_irq,
 753        .init_machine   = h1940_init,
 754        .init_time      = h1940_init_time,
 755MACHINE_END
 756