arch/arm/mach-s3c/mach-h1940.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Copyright (c) 2003-2005 Simtec Electronics
   4 //   Ben Dooks <ben@simtec.co.uk>
   5 //
   6 // https://www.handhelds.org/projects/h1940.html
   7
   8 #include <linux/kernel.h>
   9 #include <linux/types.h>
  10 #include <linux/interrupt.h>
  11 #include <linux/list.h>
  12 #include <linux/memblock.h>
  13 #include <linux/timer.h>
  14 #include <linux/init.h>
  15 #include <linux/device.h>
  16 #include <linux/serial_core.h>
  17 #include <linux/serial_s3c.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/io.h>
  20 #include <linux/gpio.h>
  21 #include <linux/gpio/machine.h>
  22 #include <linux/input.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/pwm.h>
  25 #include <linux/pwm_backlight.h>
  26 #include <linux/i2c.h>
  27 #include <linux/leds.h>
  28 #include <linux/pda_power.h>
  29 #include <linux/s3c_adc_battery.h>
  30 #include <linux/delay.h>
  31
  32 #include <video/platform_lcd.h>
  33
  34 #include <linux/mmc/host.h>
  35 #include <linux/export.h>
  36
  37 #include <asm/irq.h>
  38 #include <asm/mach-types.h>
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/irq.h>
  42
  43 #include <linux/platform_data/i2c-s3c2410.h>
  44 #include <linux/platform_data/mmc-s3cmci.h>
  45 #include <linux/platform_data/touchscreen-s3c2410.h>
  46 #include <linux/platform_data/usb-s3c2410_udc.h>
  47
  48 #include <sound/uda1380.h>
  49
  50 #include <linux/platform_data/fb-s3c2410.h>
  51 #include "map.h"
  52 #include "hardware-s3c24xx.h"
  53 #include "regs-clock.h"
  54 #include "regs-gpio.h"
  55 #include "gpio-samsung.h"
  56
  57 #include "cpu.h"
  58 #include "devs.h"
  59 #include "gpio-cfg.h"
  60 #include "pm.h"
  61
  62 #include "s3c24xx.h"
  63 #include "h1940.h"
  64
  65 #define H1940_LATCH             ((void __force __iomem *)0xF8000000)
  66
  67 #define H1940_PA_LATCH          S3C2410_CS2
  68
  69 #define H1940_LATCH_BIT(x)      (1 << ((x) + 16 - S3C_GPIO_END))
  70
  71 #define S3C24XX_PLL_MDIV_SHIFT         (12)
  72 #define S3C24XX_PLL_PDIV_SHIFT         (4)
  73 #define S3C24XX_PLL_SDIV_SHIFT         (0)
  74
  75 static struct map_desc h1940_iodesc[] __initdata = {
  76         [0] = {
  77                 .virtual        = (unsigned long)H1940_LATCH,
  78                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  79                 .length         = SZ_16K,
  80                 .type           = MT_DEVICE
  81         },
  82 };
  83
  84 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  85 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  86 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  87
  88 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  89         [0] = {
  90                 .hwport      = 0,
  91                 .flags       = 0,
  92                 .ucon        = 0x3c5,
  93                 .ulcon       = 0x03,
  94                 .ufcon       = 0x51,
  95         },
  96         [1] = {
  97                 .hwport      = 1,
  98                 .flags       = 0,
  99                 .ucon        = 0x245,
 100                 .ulcon       = 0x03,
 101                 .ufcon       = 0x00,
 102         },
 103         /* IR port */
 104         [2] = {
 105                 .hwport      = 2,
 106                 .flags       = 0,
 107                 .uart_flags  = UPF_CONS_FLOW,
 108                 .ucon        = 0x3c5,
 109                 .ulcon       = 0x43,
 110                 .ufcon       = 0x51,
 111         }
 112 };
 113
 114 /* Board control latch control */
 115
 116 static unsigned int latch_state;
 117
 118 static void h1940_latch_control(unsigned int clear, unsigned int set)
 119 {
 120         unsigned long flags;
 121
 122         local_irq_save(flags);
 123
 124         latch_state &= ~clear;
 125         latch_state |= set;
 126
 127         __raw_writel(latch_state, H1940_LATCH);
 128
 129         local_irq_restore(flags);
 130 }
 131
 132 static inline int h1940_gpiolib_to_latch(int offset)
 133 {
 134         return 1 << (offset + 16);
 135 }
 136
 137 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
 138                                         unsigned offset, int value)
 139 {
 140         int latch_bit = h1940_gpiolib_to_latch(offset);
 141
 142         h1940_latch_control(value ? 0 : latch_bit,
 143                 value ? latch_bit : 0);
 144 }
 145
 146 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
 147                                         unsigned offset, int value)
 148 {
 149         h1940_gpiolib_latch_set(chip, offset, value);
 150         return 0;
 151 }
 152
 153 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
 154                                         unsigned offset)
 155 {
 156         return (latch_state >> (offset + 16)) & 1;
 157 }
 158
 159 static struct gpio_chip h1940_latch_gpiochip = {
 160         .base                   = H1940_LATCH_GPIO(0),
 161         .owner                  = THIS_MODULE,
 162         .label                  = "H1940_LATCH",
 163         .ngpio                  = 16,
 164         .direction_output       = h1940_gpiolib_latch_output,
 165         .set                    = h1940_gpiolib_latch_set,
 166         .get                    = h1940_gpiolib_latch_get,
 167 };
 168
 169 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 170 };
 171
 172 static struct gpiod_lookup_table h1940_udc_gpio_table = {
 173         .dev_id = "s3c2410-usbgadget",
 174         .table = {
 175                 GPIO_LOOKUP("GPIOG", 5, "vbus", GPIO_ACTIVE_LOW),
 176                 GPIO_LOOKUP("H1940_LATCH", 7, "pullup", GPIO_ACTIVE_HIGH),
 177                 { },
 178         },
 179 };
 180
 181 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 182                 .delay = 10000,
 183                 .presc = 49,
 184                 .oversampling_shift = 2,
 185                 .cfg_gpio = s3c24xx_ts_cfg_gpio,
 186 };
 187
 188 /*
 189  * Set lcd on or off
 190  */
 191 static struct s3c2410fb_display h1940_lcd __initdata = {
 192         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 193                         S3C2410_LCDCON5_INVVLINE | \
 194                         S3C2410_LCDCON5_HWSWP,
 195
 196         .type =         S3C2410_LCDCON1_TFT,
 197         .width =        240,
 198         .height =       320,
 199         .pixclock =     260000,
 200         .xres =         240,
 201         .yres =         320,
 202         .bpp =          16,
 203         .left_margin =  8,
 204         .right_margin = 20,
 205         .hsync_len =    4,
 206         .upper_margin = 8,
 207         .lower_margin = 7,
 208         .vsync_len =    1,
 209 };
 210
 211 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 212         .displays = &h1940_lcd,
 213         .num_displays = 1,
 214         .default_display = 0,
 215
 216         .lpcsel =       0x02,
 217         .gpccon =       0xaa940659,
 218         .gpccon_mask =  0xffffc0f0,
 219         .gpccon_reg =   S3C2410_GPCCON,
 220         .gpcup =        0x0000ffff,
 221         .gpcup_mask =   0xffffffff,
 222         .gpcup_reg =    S3C2410_GPCUP,
 223         .gpdcon =       0xaa84aaa0,
 224         .gpdcon_mask =  0xffffffff,
 225         .gpdcon_reg =   S3C2410_GPDCON,
 226         .gpdup =        0x0000faff,
 227         .gpdup_mask =   0xffffffff,
 228         .gpdup_reg =    S3C2410_GPDUP,
 229 };
 230
 231 static int power_supply_init(struct device *dev)
 232 {
 233         return gpio_request(S3C2410_GPF(2), "cable plugged");
 234 }
 235
 236 static int h1940_is_ac_online(void)
 237 {
 238         return !gpio_get_value(S3C2410_GPF(2));
 239 }
 240
 241 static void power_supply_exit(struct device *dev)
 242 {
 243         gpio_free(S3C2410_GPF(2));
 244 }
 245
 246 static char *h1940_supplicants[] = {
 247         "main-battery",
 248         "backup-battery",
 249 };
 250
 251 static struct pda_power_pdata power_supply_info = {
 252         .init                   = power_supply_init,
 253         .is_ac_online           = h1940_is_ac_online,
 254         .exit                   = power_supply_exit,
 255         .supplied_to            = h1940_supplicants,
 256         .num_supplicants        = ARRAY_SIZE(h1940_supplicants),
 257 };
 258
 259 static struct resource power_supply_resources[] = {
 260         [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 261                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 262 };
 263
 264 static struct platform_device power_supply = {
 265         .name           = "pda-power",
 266         .id             = -1,
 267         .dev            = {
 268                                 .platform_data =
 269                                         &power_supply_info,
 270         },
 271         .resource       = power_supply_resources,
 272         .num_resources  = ARRAY_SIZE(power_supply_resources),
 273 };
 274
 275 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 276         { .volt = 4070, .cur = 162, .level = 100},
 277         { .volt = 4040, .cur = 165, .level = 95},
 278         { .volt = 4016, .cur = 164, .level = 90},
 279         { .volt = 3996, .cur = 166, .level = 85},
 280         { .volt = 3971, .cur = 168, .level = 80},
 281         { .volt = 3951, .cur = 168, .level = 75},
 282         { .volt = 3931, .cur = 170, .level = 70},
 283         { .volt = 3903, .cur = 172, .level = 65},
 284         { .volt = 3886, .cur = 172, .level = 60},
 285         { .volt = 3858, .cur = 176, .level = 55},
 286         { .volt = 3842, .cur = 176, .level = 50},
 287         { .volt = 3818, .cur = 176, .level = 45},
 288         { .volt = 3789, .cur = 180, .level = 40},
 289         { .volt = 3769, .cur = 180, .level = 35},
 290         { .volt = 3749, .cur = 184, .level = 30},
 291         { .volt = 3732, .cur = 184, .level = 25},
 292         { .volt = 3716, .cur = 184, .level = 20},
 293         { .volt = 3708, .cur = 184, .level = 15},
 294         { .volt = 3716, .cur = 96, .level = 10},
 295         { .volt = 3700, .cur = 96, .level = 5},
 296         { .volt = 3684, .cur = 96, .level = 0},
 297 };
 298
 299 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 300         { .volt = 4130, .cur = 0, .level = 100},
 301         { .volt = 3982, .cur = 0, .level = 50},
 302         { .volt = 3854, .cur = 0, .level = 10},
 303         { .volt = 3841, .cur = 0, .level = 0},
 304 };
 305
 306 static struct gpiod_lookup_table h1940_bat_gpio_table = {
 307         .dev_id = "s3c-adc-battery",
 308         .table = {
 309                 /* Charge status S3C2410_GPF(3) */
 310                 GPIO_LOOKUP("GPIOF", 3, "charge-status", GPIO_ACTIVE_LOW),
 311                 { },
 312         },
 313 };
 314
 315 static int h1940_bat_init(void)
 316 {
 317         int ret;
 318
 319         ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
 320         if (ret)
 321                 return ret;
 322         gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
 323
 324         return 0;
 325
 326 }
 327
 328 static void h1940_bat_exit(void)
 329 {
 330         gpio_free(H1940_LATCH_SM803_ENABLE);
 331 }
 332
 333 static void h1940_enable_charger(void)
 334 {
 335         gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
 336 }
 337
 338 static void h1940_disable_charger(void)
 339 {
 340         gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
 341 }
 342
 343 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
 344         .init = h1940_bat_init,
 345         .exit = h1940_bat_exit,
 346         .enable_charger = h1940_enable_charger,
 347         .disable_charger = h1940_disable_charger,
 348         .lut_noac = bat_lut_noac,
 349         .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 350         .lut_acin = bat_lut_acin,
 351         .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 352         .volt_channel = 0,
 353         .current_channel = 1,
 354         .volt_mult = 4056,
 355         .current_mult = 1893,
 356         .internal_impedance = 200,
 357         .backup_volt_channel = 3,
 358         /* TODO Check backup volt multiplier */
 359         .backup_volt_mult = 4056,
 360         .backup_volt_min = 0,
 361         .backup_volt_max = 4149288
 362 };
 363
 364 static struct platform_device h1940_battery = {
 365         .name             = "s3c-adc-battery",
 366         .id               = -1,
 367         .dev = {
 368                 .parent = &s3c_device_adc.dev,
 369                 .platform_data = &h1940_bat_cfg,
 370         },
 371 };
 372
 373 static DEFINE_SPINLOCK(h1940_blink_spin);
 374
 375 int h1940_led_blink_set(struct gpio_desc *desc, int state,
 376         unsigned long *delay_on, unsigned long *delay_off)
 377 {
 378         int blink_gpio, check_gpio1, check_gpio2;
 379         int gpio = desc ? desc_to_gpio(desc) : -EINVAL;
 380
 381         switch (gpio) {
 382         case H1940_LATCH_LED_GREEN:
 383                 blink_gpio = S3C2410_GPA(7);
 384                 check_gpio1 = S3C2410_GPA(1);
 385                 check_gpio2 = S3C2410_GPA(3);
 386                 break;
 387         case H1940_LATCH_LED_RED:
 388                 blink_gpio = S3C2410_GPA(1);
 389                 check_gpio1 = S3C2410_GPA(7);
 390                 check_gpio2 = S3C2410_GPA(3);
 391                 break;
 392         default:
 393                 blink_gpio = S3C2410_GPA(3);
 394                 check_gpio1 = S3C2410_GPA(1);
 395                 check_gpio2 = S3C2410_GPA(7);
 396                 break;
 397         }
 398
 399         if (delay_on && delay_off && !*delay_on && !*delay_off)
 400                 *delay_on = *delay_off = 500;
 401
 402         spin_lock(&h1940_blink_spin);
 403
 404         switch (state) {
 405         case GPIO_LED_NO_BLINK_LOW:
 406         case GPIO_LED_NO_BLINK_HIGH:
 407                 if (!gpio_get_value(check_gpio1) &&
 408                     !gpio_get_value(check_gpio2))
 409                         gpio_set_value(H1940_LATCH_LED_FLASH, 0);
 410                 gpio_set_value(blink_gpio, 0);
 411                 if (gpio_is_valid(gpio))
 412                         gpio_set_value(gpio, state);
 413                 break;
 414         case GPIO_LED_BLINK:
 415                 if (gpio_is_valid(gpio))
 416                         gpio_set_value(gpio, 0);
 417                 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
 418                 gpio_set_value(blink_gpio, 1);
 419                 break;
 420         }
 421
 422         spin_unlock(&h1940_blink_spin);
 423
 424         return 0;
 425 }
 426 EXPORT_SYMBOL(h1940_led_blink_set);
 427
 428 static struct gpio_led h1940_leds_desc[] = {
 429         {
 430                 .name                   = "Green",
 431                 .default_trigger        = "main-battery-full",
 432                 .gpio                   = H1940_LATCH_LED_GREEN,
 433                 .retain_state_suspended = 1,
 434         },
 435         {
 436                 .name                   = "Red",
 437                 .default_trigger
 438                         = "main-battery-charging-blink-full-solid",
 439                 .gpio                   = H1940_LATCH_LED_RED,
 440                 .retain_state_suspended = 1,
 441         },
 442 };
 443
 444 static struct gpio_led_platform_data h1940_leds_pdata = {
 445         .num_leds       = ARRAY_SIZE(h1940_leds_desc),
 446         .leds           = h1940_leds_desc,
 447         .gpio_blink_set = h1940_led_blink_set,
 448 };
 449
 450 static struct platform_device h1940_device_leds = {
 451         .name   = "leds-gpio",
 452         .id     = -1,
 453         .dev    = {
 454                         .platform_data = &h1940_leds_pdata,
 455         },
 456 };
 457
 458 static struct platform_device h1940_device_bluetooth = {
 459         .name             = "h1940-bt",
 460         .id               = -1,
 461 };
 462
 463 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 464 {
 465         s3c24xx_mci_def_set_power(power_mode, vdd);
 466
 467         switch (power_mode) {
 468         case MMC_POWER_OFF:
 469                 gpio_set_value(H1940_LATCH_SD_POWER, 0);
 470                 break;
 471         case MMC_POWER_UP:
 472         case MMC_POWER_ON:
 473                 gpio_set_value(H1940_LATCH_SD_POWER, 1);
 474                 break;
 475         default:
 476                 break;
 477         }
 478 }
 479
 480 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
 481         .set_power     = h1940_set_mmc_power,
 482         .ocr_avail     = MMC_VDD_32_33,
 483 };
 484
 485 static struct gpiod_lookup_table h1940_mmc_gpio_table = {
 486         .dev_id = "s3c2410-sdi",
 487         .table = {
 488                 /* Card detect S3C2410_GPF(5) */
 489                 GPIO_LOOKUP("GPIOF", 5, "cd", GPIO_ACTIVE_LOW),
 490                 /* Write protect S3C2410_GPH(8) */
 491                 GPIO_LOOKUP("GPIOH", 8, "wp", GPIO_ACTIVE_LOW),
 492                 /* bus pins */
 493                 GPIO_LOOKUP_IDX("GPIOE",  5, "bus", 0, GPIO_ACTIVE_HIGH),
 494                 GPIO_LOOKUP_IDX("GPIOE",  6, "bus", 1, GPIO_ACTIVE_HIGH),
 495                 GPIO_LOOKUP_IDX("GPIOE",  7, "bus", 2, GPIO_ACTIVE_HIGH),
 496                 GPIO_LOOKUP_IDX("GPIOE",  8, "bus", 3, GPIO_ACTIVE_HIGH),
 497                 GPIO_LOOKUP_IDX("GPIOE",  9, "bus", 4, GPIO_ACTIVE_HIGH),
 498                 GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
 499                 { },
 500         },
 501 };
 502
 503 static struct gpiod_lookup_table h1940_audio_gpio_table = {
 504         .dev_id = "h1940-audio",
 505         .table = {
 506                 GPIO_LOOKUP("H1940_LATCH",
 507                             H1940_LATCH_AUDIO_POWER - H1940_LATCH_GPIO(0),
 508                             "speaker-power", GPIO_ACTIVE_HIGH),
 509                 GPIO_LOOKUP("GPIOG", 4, "hp", GPIO_ACTIVE_HIGH),
 510                 { },
 511         },
 512 };
 513
 514 static struct platform_device h1940_audio = {
 515         .name = "h1940-audio",
 516         .id   = -1,
 517 };
 518
 519 static struct pwm_lookup h1940_pwm_lookup[] = {
 520         PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
 521                    PWM_POLARITY_NORMAL),
 522 };
 523
 524 static int h1940_backlight_init(struct device *dev)
 525 {
 526         gpio_request(S3C2410_GPB(0), "Backlight");
 527
 528         gpio_direction_output(S3C2410_GPB(0), 0);
 529         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 530         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 531         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 532
 533         return 0;
 534 }
 535
 536 static int h1940_backlight_notify(struct device *dev, int brightness)
 537 {
 538         if (!brightness) {
 539                 gpio_direction_output(S3C2410_GPB(0), 1);
 540                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 541         } else {
 542                 gpio_direction_output(S3C2410_GPB(0), 0);
 543                 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 544                 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 545                 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 546         }
 547         return brightness;
 548 }
 549
 550 static void h1940_backlight_exit(struct device *dev)
 551 {
 552         gpio_direction_output(S3C2410_GPB(0), 1);
 553         gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 554 }
 555
 556
 557 static struct platform_pwm_backlight_data backlight_data = {
 558         .max_brightness = 100,
 559         .dft_brightness = 50,
 560         .init           = h1940_backlight_init,
 561         .notify         = h1940_backlight_notify,
 562         .exit           = h1940_backlight_exit,
 563 };
 564
 565 static struct platform_device h1940_backlight = {
 566         .name = "pwm-backlight",
 567         .dev  = {
 568                 .parent = &samsung_device_pwm.dev,
 569                 .platform_data = &backlight_data,
 570         },
 571         .id   = -1,
 572 };
 573
 574 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 575                                         unsigned int power)
 576 {
 577         int value, retries = 100;
 578
 579         if (!power) {
 580                 gpio_set_value(S3C2410_GPC(0), 0);
 581                 /* wait for 3ac */
 582                 do {
 583                         value = gpio_get_value(S3C2410_GPC(6));
 584                 } while (value && retries--);
 585
 586                 gpio_set_value(H1940_LATCH_LCD_P2, 0);
 587                 gpio_set_value(H1940_LATCH_LCD_P3, 0);
 588                 gpio_set_value(H1940_LATCH_LCD_P4, 0);
 589
 590                 gpio_direction_output(S3C2410_GPC(1), 0);
 591                 gpio_direction_output(S3C2410_GPC(4), 0);
 592
 593                 gpio_set_value(H1940_LATCH_LCD_P1, 0);
 594                 gpio_set_value(H1940_LATCH_LCD_P0, 0);
 595
 596                 gpio_set_value(S3C2410_GPC(5), 0);
 597
 598         } else {
 599                 gpio_set_value(H1940_LATCH_LCD_P0, 1);
 600                 gpio_set_value(H1940_LATCH_LCD_P1, 1);
 601
 602                 gpio_direction_input(S3C2410_GPC(1));
 603                 gpio_direction_input(S3C2410_GPC(4));
 604                 mdelay(10);
 605                 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 606                 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
 607
 608                 gpio_set_value(S3C2410_GPC(5), 1);
 609                 gpio_set_value(S3C2410_GPC(0), 1);
 610
 611                 gpio_set_value(H1940_LATCH_LCD_P3, 1);
 612                 gpio_set_value(H1940_LATCH_LCD_P2, 1);
 613                 gpio_set_value(H1940_LATCH_LCD_P4, 1);
 614         }
 615 }
 616
 617 static struct plat_lcd_data h1940_lcd_power_data = {
 618         .set_power      = h1940_lcd_power_set,
 619 };
 620
 621 static struct platform_device h1940_lcd_powerdev = {
 622         .name                   = "platform-lcd",
 623         .dev.parent             = &s3c_device_lcd.dev,
 624         .dev.platform_data      = &h1940_lcd_power_data,
 625 };
 626
 627 static struct uda1380_platform_data uda1380_info = {
 628         .gpio_power     = H1940_LATCH_UDA_POWER,
 629         .gpio_reset     = S3C2410_GPA(12),
 630         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
 631 };
 632
 633 static struct i2c_board_info h1940_i2c_devices[] = {
 634         {
 635                 I2C_BOARD_INFO("uda1380", 0x1a),
 636                 .platform_data = &uda1380_info,
 637         },
 638 };
 639
 640 #define DECLARE_BUTTON(p, k, n, w)      \
 641         {                               \
 642                 .gpio           = p,    \
 643                 .code           = k,    \
 644                 .desc           = n,    \
 645                 .wakeup         = w,    \
 646                 .active_low     = 1,    \
 647         }
 648
 649 static struct gpio_keys_button h1940_buttons[] = {
 650         DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 651         DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 652         DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 653         DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 654         DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 655         DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 656         DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 657         DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 658         DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 659         DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 660         DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 661 };
 662
 663 static struct gpio_keys_platform_data h1940_buttons_data = {
 664         .buttons        = h1940_buttons,
 665         .nbuttons       = ARRAY_SIZE(h1940_buttons),
 666 };
 667
 668 static struct platform_device h1940_dev_buttons = {
 669         .name           = "gpio-keys",
 670         .id             = -1,
 671         .dev            = {
 672                 .platform_data  = &h1940_buttons_data,
 673         }
 674 };
 675
 676 static struct platform_device *h1940_devices[] __initdata = {
 677         &h1940_dev_buttons,
 678         &s3c_device_ohci,
 679         &s3c_device_lcd,
 680         &s3c_device_wdt,
 681         &s3c_device_i2c0,
 682         &s3c_device_iis,
 683         &s3c_device_usbgadget,
 684         &h1940_device_leds,
 685         &h1940_device_bluetooth,
 686         &s3c_device_sdi,
 687         &s3c_device_rtc,
 688         &samsung_device_pwm,
 689         &h1940_backlight,
 690         &h1940_lcd_powerdev,
 691         &s3c_device_adc,
 692         &s3c_device_ts,
 693         &power_supply,
 694         &h1940_battery,
 695         &h1940_audio,
 696 };
 697
 698 static void __init h1940_map_io(void)
 699 {
 700         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 701         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 702         s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
 703
 704         /* setup PM */
 705
 706 #ifdef CONFIG_PM_H1940
 707         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 708 #endif
 709         s3c_pm_init();
 710
 711         /* Add latch gpio chip, set latch initial value */
 712         h1940_latch_control(0, 0);
 713         WARN_ON(gpiochip_add_data(&h1940_latch_gpiochip, NULL));
 714 }
 715
 716 static void __init h1940_init_time(void)
 717 {
 718         s3c2410_init_clocks(12000000);
 719         s3c24xx_timer_init();
 720 }
 721
 722 /* H1940 and RX3715 need to reserve this for suspend */
 723 static void __init h1940_reserve(void)
 724 {
 725         memblock_reserve(0x30003000, 0x1000);
 726         memblock_reserve(0x30081000, 0x1000);
 727 }
 728
 729 static void __init h1940_init(void)
 730 {
 731         u32 tmp;
 732
 733         s3c24xx_fb_set_platdata(&h1940_fb_info);
 734         gpiod_add_lookup_table(&h1940_udc_gpio_table);
 735         gpiod_add_lookup_table(&h1940_mmc_gpio_table);
 736         gpiod_add_lookup_table(&h1940_audio_gpio_table);
 737         gpiod_add_lookup_table(&h1940_bat_gpio_table);
 738         /* Configure the I2S pins (GPE0...GPE4) in correct mode */
 739         s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
 740                               S3C_GPIO_PULL_NONE);
 741         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 742         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 743         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 744         s3c_i2c0_set_platdata(NULL);
 745
 746         /* Turn off suspend on both USB ports, and switch the
 747          * selectable USB port to USB device mode. */
 748
 749         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 750                               S3C2410_MISCCR_USBSUSPND0 |
 751                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 752
 753         tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
 754               | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
 755               | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
 756         writel(tmp, S3C2410_UPLLCON);
 757
 758         gpio_request(S3C2410_GPC(0), "LCD power");
 759         gpio_request(S3C2410_GPC(1), "LCD power");
 760         gpio_request(S3C2410_GPC(4), "LCD power");
 761         gpio_request(S3C2410_GPC(5), "LCD power");
 762         gpio_request(S3C2410_GPC(6), "LCD power");
 763         gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 764         gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 765         gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 766         gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 767         gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 768         gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 769         gpio_direction_output(S3C2410_GPC(0), 0);
 770         gpio_direction_output(S3C2410_GPC(1), 0);
 771         gpio_direction_output(S3C2410_GPC(4), 0);
 772         gpio_direction_output(S3C2410_GPC(5), 0);
 773         gpio_direction_input(S3C2410_GPC(6));
 774         gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 775         gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 776         gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 777         gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 778         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 779         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 780
 781         gpio_request(H1940_LATCH_SD_POWER, "SD power");
 782         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 783
 784         pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
 785         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 786
 787         gpio_request(S3C2410_GPA(1), "Red LED blink");
 788         gpio_request(S3C2410_GPA(3), "Blue LED blink");
 789         gpio_request(S3C2410_GPA(7), "Green LED blink");
 790         gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 791         gpio_direction_output(S3C2410_GPA(1), 0);
 792         gpio_direction_output(S3C2410_GPA(3), 0);
 793         gpio_direction_output(S3C2410_GPA(7), 0);
 794         gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
 795
 796         i2c_register_board_info(0, h1940_i2c_devices,
 797                 ARRAY_SIZE(h1940_i2c_devices));
 798 }
 799
 800 MACHINE_START(H1940, "IPAQ-H1940")
 801         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 802         .atag_offset    = 0x100,
 803         .nr_irqs        = NR_IRQS_S3C2410,
 804         .map_io         = h1940_map_io,
 805         .reserve        = h1940_reserve,
 806         .init_irq       = s3c2410_init_irq,
 807         .init_machine   = h1940_init,
 808         .init_time      = h1940_init_time,
 809 MACHINE_END