arch/arm/mach-s3c24xx/mach-mini2440.c

   1 /* linux/arch/arm/mach-s3c2440/mach-mini2440.c
   2  *
   3  * Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
   4  *      Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
   5  *      and modifications by SBZ <sbz@spgui.org> and
   6  *      Weibing <http://weibing.blogbus.com> and
   7  *      Michel Pollet <buserror@gmail.com>
   8  *
   9  * For product information, visit http://code.google.com/p/mini2440/
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14 */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/types.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/list.h>
  20 #include <linux/timer.h>
  21 #include <linux/init.h>
  22 #include <linux/gpio.h>
  23 #include <linux/input.h>
  24 #include <linux/io.h>
  25 #include <linux/serial_core.h>
  26 #include <linux/dm9000.h>
  27 #include <linux/i2c/at24.h>
  28 #include <linux/platform_device.h>
  29 #include <linux/gpio_keys.h>
  30 #include <linux/i2c.h>
  31 #include <linux/mmc/host.h>
  32
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include <mach/hardware.h>
  37 #include <mach/fb.h>
  38 #include <asm/mach-types.h>
  39
  40 #include <plat/regs-serial.h>
  41 #include <mach/regs-gpio.h>
  42 #include <linux/platform_data/leds-s3c24xx.h>
  43 #include <mach/regs-lcd.h>
  44 #include <mach/irqs.h>
  45 #include <linux/platform_data/mtd-nand-s3c2410.h>
  46 #include <linux/platform_data/i2c-s3c2410.h>
  47 #include <linux/platform_data/mmc-s3cmci.h>
  48 #include <linux/platform_data/usb-s3c2410_udc.h>
  49
  50 #include <linux/mtd/mtd.h>
  51 #include <linux/mtd/nand.h>
  52 #include <linux/mtd/nand_ecc.h>
  53 #include <linux/mtd/partitions.h>
  54
  55 #include <plat/gpio-cfg.h>
  56 #include <plat/clock.h>
  57 #include <plat/devs.h>
  58 #include <plat/cpu.h>
  59
  60 #include <sound/s3c24xx_uda134x.h>
  61
  62 #include "common.h"
  63
  64 #define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)
  65
  66 static struct map_desc mini2440_iodesc[] __initdata = {
  67         /* nothing to declare, move along */
  68 };
  69
  70 #define UCON S3C2410_UCON_DEFAULT
  71 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  72 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  73
  74
  75 static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
  76         [0] = {
  77                 .hwport      = 0,
  78                 .flags       = 0,
  79                 .ucon        = UCON,
  80                 .ulcon       = ULCON,
  81                 .ufcon       = UFCON,
  82         },
  83         [1] = {
  84                 .hwport      = 1,
  85                 .flags       = 0,
  86                 .ucon        = UCON,
  87                 .ulcon       = ULCON,
  88                 .ufcon       = UFCON,
  89         },
  90         [2] = {
  91                 .hwport      = 2,
  92                 .flags       = 0,
  93                 .ucon        = UCON,
  94                 .ulcon       = ULCON,
  95                 .ufcon       = UFCON,
  96         },
  97 };
  98
  99 /* USB device UDC support */
 100
 101 static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
 102         .pullup_pin = S3C2410_GPC(5),
 103 };
 104
 105
 106 /* LCD timing and setup */
 107
 108 /*
 109  * This macro simplifies the table bellow
 110  */
 111 #define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
 112                         _yres,margin_top,margin_bottom,vsync, refresh) \
 113         .width = _xres, \
 114         .xres = _xres, \
 115         .height = _yres, \
 116         .yres = _yres, \
 117         .left_margin    = margin_left,  \
 118         .right_margin   = margin_right, \
 119         .upper_margin   = margin_top,   \
 120         .lower_margin   = margin_bottom,        \
 121         .hsync_len      = hsync,        \
 122         .vsync_len      = vsync,        \
 123         .pixclock       = ((_clock*100000000000LL) /    \
 124                            ((refresh) * \
 125                            (hsync + margin_left + _xres + margin_right) * \
 126                            (vsync + margin_top + _yres + margin_bottom))), \
 127         .bpp            = 16,\
 128         .type           = (S3C2410_LCDCON1_TFT16BPP |\
 129                            S3C2410_LCDCON1_TFT)
 130
 131 static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
 132         [0] = { /* mini2440 + 3.5" TFT + touchscreen */
 133                 _LCD_DECLARE(
 134                         7,                      /* The 3.5 is quite fast */
 135                         240, 21, 38, 6,         /* x timing */
 136                         320, 4, 4, 2,           /* y timing */
 137                         60),                    /* refresh rate */
 138                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 139                                    S3C2410_LCDCON5_INVVLINE |
 140                                    S3C2410_LCDCON5_INVVFRAME |
 141                                    S3C2410_LCDCON5_INVVDEN |
 142                                    S3C2410_LCDCON5_PWREN),
 143         },
 144         [1] = { /* mini2440 + 7" TFT + touchscreen */
 145                 _LCD_DECLARE(
 146                         10,                     /* the 7" runs slower */
 147                         800, 40, 40, 48,        /* x timing */
 148                         480, 29, 3, 3,          /* y timing */
 149                         50),                    /* refresh rate */
 150                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 151                                    S3C2410_LCDCON5_INVVLINE |
 152                                    S3C2410_LCDCON5_INVVFRAME |
 153                                    S3C2410_LCDCON5_PWREN),
 154         },
 155         /* The VGA shield can outout at several resolutions. All share
 156          * the same timings, however, anything smaller than 1024x768
 157          * will only be displayed in the top left corner of a 1024x768
 158          * XGA output unless you add optional dip switches to the shield.
 159          * Therefore timings for other resolutions have been omitted here.
 160          */
 161         [2] = {
 162                 _LCD_DECLARE(
 163                         10,
 164                         1024, 1, 2, 2,          /* y timing */
 165                         768, 200, 16, 16,       /* x timing */
 166                         24),    /* refresh rate, maximum stable,
 167                                  tested with the FPGA shield */
 168                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 169                                    S3C2410_LCDCON5_HWSWP),
 170         },
 171         /* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/
 172         [3] = {
 173                 _LCD_DECLARE(
 174                         /* clock */
 175                         7,
 176                         /* xres, margin_right, margin_left, hsync */
 177                         320, 68, 66, 4,
 178                         /* yres, margin_top, margin_bottom, vsync */
 179                         240, 4, 4, 9,
 180                         /* refresh rate */
 181                         60),
 182                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 183                                    S3C2410_LCDCON5_INVVDEN |
 184                                    S3C2410_LCDCON5_INVVFRAME |
 185                                    S3C2410_LCDCON5_INVVLINE |
 186                                    S3C2410_LCDCON5_INVVCLK |
 187                                    S3C2410_LCDCON5_HWSWP),
 188         },
 189 };
 190
 191 /* todo - put into gpio header */
 192
 193 #define S3C2410_GPCCON_MASK(x)  (3 << ((x) * 2))
 194 #define S3C2410_GPDCON_MASK(x)  (3 << ((x) * 2))
 195
 196 static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
 197         .displays        = &mini2440_lcd_cfg[0], /* not constant! see init */
 198         .num_displays    = 1,
 199         .default_display = 0,
 200
 201         /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
 202          * and disable the pull down resistors on pins we are using for LCD
 203          * data. */
 204
 205         .gpcup          = (0xf << 1) | (0x3f << 10),
 206
 207         .gpccon         = (S3C2410_GPC1_VCLK   | S3C2410_GPC2_VLINE |
 208                            S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
 209                            S3C2410_GPC10_VD2   | S3C2410_GPC11_VD3 |
 210                            S3C2410_GPC12_VD4   | S3C2410_GPC13_VD5 |
 211                            S3C2410_GPC14_VD6   | S3C2410_GPC15_VD7),
 212
 213         .gpccon_mask    = (S3C2410_GPCCON_MASK(1)  | S3C2410_GPCCON_MASK(2)  |
 214                            S3C2410_GPCCON_MASK(3)  | S3C2410_GPCCON_MASK(4)  |
 215                            S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
 216                            S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
 217                            S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
 218
 219         .gpdup          = (0x3f << 2) | (0x3f << 10),
 220
 221         .gpdcon         = (S3C2410_GPD2_VD10  | S3C2410_GPD3_VD11 |
 222                            S3C2410_GPD4_VD12  | S3C2410_GPD5_VD13 |
 223                            S3C2410_GPD6_VD14  | S3C2410_GPD7_VD15 |
 224                            S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
 225                            S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
 226                            S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),
 227
 228         .gpdcon_mask    = (S3C2410_GPDCON_MASK(2)  | S3C2410_GPDCON_MASK(3) |
 229                            S3C2410_GPDCON_MASK(4)  | S3C2410_GPDCON_MASK(5) |
 230                            S3C2410_GPDCON_MASK(6)  | S3C2410_GPDCON_MASK(7) |
 231                            S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
 232                            S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
 233                            S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
 234 };
 235
 236 /* MMC/SD  */
 237
 238 static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
 239    .gpio_detect   = S3C2410_GPG(8),
 240    .gpio_wprotect = S3C2410_GPH(8),
 241    .set_power     = NULL,
 242    .ocr_avail     = MMC_VDD_32_33|MMC_VDD_33_34,
 243 };
 244
 245 /* NAND Flash on MINI2440 board */
 246
 247 static struct mtd_partition mini2440_default_nand_part[] __initdata = {
 248         [0] = {
 249                 .name   = "u-boot",
 250                 .size   = SZ_256K,
 251                 .offset = 0,
 252         },
 253         [1] = {
 254                 .name   = "u-boot-env",
 255                 .size   = SZ_128K,
 256                 .offset = SZ_256K,
 257         },
 258         [2] = {
 259                 .name   = "kernel",
 260                 /* 5 megabytes, for a kernel with no modules
 261                  * or a uImage with a ramdisk attached */
 262                 .size   = 0x00500000,
 263                 .offset = SZ_256K + SZ_128K,
 264         },
 265         [3] = {
 266                 .name   = "root",
 267                 .offset = SZ_256K + SZ_128K + 0x00500000,
 268                 .size   = MTDPART_SIZ_FULL,
 269         },
 270 };
 271
 272 static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
 273         [0] = {
 274                 .name           = "nand",
 275                 .nr_chips       = 1,
 276                 .nr_partitions  = ARRAY_SIZE(mini2440_default_nand_part),
 277                 .partitions     = mini2440_default_nand_part,
 278                 .flash_bbt      = 1, /* we use u-boot to create a BBT */
 279         },
 280 };
 281
 282 static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
 283         .tacls          = 0,
 284         .twrph0         = 25,
 285         .twrph1         = 15,
 286         .nr_sets        = ARRAY_SIZE(mini2440_nand_sets),
 287         .sets           = mini2440_nand_sets,
 288         .ignore_unset_ecc = 1,
 289 };
 290
 291 /* DM9000AEP 10/100 ethernet controller */
 292
 293 static struct resource mini2440_dm9k_resource[] = {
 294         [0] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE, 4),
 295         [1] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE + 4, 4),
 296         [2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ \
 297                                                 | IORESOURCE_IRQ_HIGHEDGE),
 298 };
 299
 300 /*
 301  * The DM9000 has no eeprom, and it's MAC address is set by
 302  * the bootloader before starting the kernel.
 303  */
 304 static struct dm9000_plat_data mini2440_dm9k_pdata = {
 305         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 306 };
 307
 308 static struct platform_device mini2440_device_eth = {
 309         .name           = "dm9000",
 310         .id             = -1,
 311         .num_resources  = ARRAY_SIZE(mini2440_dm9k_resource),
 312         .resource       = mini2440_dm9k_resource,
 313         .dev            = {
 314                 .platform_data  = &mini2440_dm9k_pdata,
 315         },
 316 };
 317
 318 /*  CON5
 319  *      +--+     /-----\
 320  *      |  |    |       |
 321  *      |  |    |  BAT  |
 322  *      |  |     \_____/
 323  *      |  |
 324  *      |  |  +----+  +----+
 325  *      |  |  | K5 |  | K1 |
 326  *      |  |  +----+  +----+
 327  *      |  |  +----+  +----+
 328  *      |  |  | K4 |  | K2 |
 329  *      |  |  +----+  +----+
 330  *      |  |  +----+  +----+
 331  *      |  |  | K6 |  | K3 |
 332  *      |  |  +----+  +----+
 333  *        .....
 334  */
 335 static struct gpio_keys_button mini2440_buttons[] = {
 336         {
 337                 .gpio           = S3C2410_GPG(0),               /* K1 */
 338                 .code           = KEY_F1,
 339                 .desc           = "Button 1",
 340                 .active_low     = 1,
 341         },
 342         {
 343                 .gpio           = S3C2410_GPG(3),               /* K2 */
 344                 .code           = KEY_F2,
 345                 .desc           = "Button 2",
 346                 .active_low     = 1,
 347         },
 348         {
 349                 .gpio           = S3C2410_GPG(5),               /* K3 */
 350                 .code           = KEY_F3,
 351                 .desc           = "Button 3",
 352                 .active_low     = 1,
 353         },
 354         {
 355                 .gpio           = S3C2410_GPG(6),               /* K4 */
 356                 .code           = KEY_POWER,
 357                 .desc           = "Power",
 358                 .active_low     = 1,
 359         },
 360         {
 361                 .gpio           = S3C2410_GPG(7),               /* K5 */
 362                 .code           = KEY_F5,
 363                 .desc           = "Button 5",
 364                 .active_low     = 1,
 365         },
 366 #if 0
 367         /* this pin is also known as TCLK1 and seems to already
 368          * marked as "in use" somehow in the kernel -- possibly wrongly */
 369         {
 370                 .gpio           = S3C2410_GPG(11),      /* K6 */
 371                 .code           = KEY_F6,
 372                 .desc           = "Button 6",
 373                 .active_low     = 1,
 374         },
 375 #endif
 376 };
 377
 378 static struct gpio_keys_platform_data mini2440_button_data = {
 379         .buttons        = mini2440_buttons,
 380         .nbuttons       = ARRAY_SIZE(mini2440_buttons),
 381 };
 382
 383 static struct platform_device mini2440_button_device = {
 384         .name           = "gpio-keys",
 385         .id             = -1,
 386         .dev            = {
 387                 .platform_data  = &mini2440_button_data,
 388         }
 389 };
 390
 391 /* LEDS */
 392
 393 static struct s3c24xx_led_platdata mini2440_led1_pdata = {
 394         .name           = "led1",
 395         .gpio           = S3C2410_GPB(5),
 396         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 397         .def_trigger    = "heartbeat",
 398 };
 399
 400 static struct s3c24xx_led_platdata mini2440_led2_pdata = {
 401         .name           = "led2",
 402         .gpio           = S3C2410_GPB(6),
 403         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 404         .def_trigger    = "nand-disk",
 405 };
 406
 407 static struct s3c24xx_led_platdata mini2440_led3_pdata = {
 408         .name           = "led3",
 409         .gpio           = S3C2410_GPB(7),
 410         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 411         .def_trigger    = "mmc0",
 412 };
 413
 414 static struct s3c24xx_led_platdata mini2440_led4_pdata = {
 415         .name           = "led4",
 416         .gpio           = S3C2410_GPB(8),
 417         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 418         .def_trigger    = "",
 419 };
 420
 421 static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = {
 422         .name           = "backlight",
 423         .gpio           = S3C2410_GPG(4),
 424         .def_trigger    = "backlight",
 425 };
 426
 427 static struct platform_device mini2440_led1 = {
 428         .name           = "s3c24xx_led",
 429         .id             = 1,
 430         .dev            = {
 431                 .platform_data  = &mini2440_led1_pdata,
 432         },
 433 };
 434
 435 static struct platform_device mini2440_led2 = {
 436         .name           = "s3c24xx_led",
 437         .id             = 2,
 438         .dev            = {
 439                 .platform_data  = &mini2440_led2_pdata,
 440         },
 441 };
 442
 443 static struct platform_device mini2440_led3 = {
 444         .name           = "s3c24xx_led",
 445         .id             = 3,
 446         .dev            = {
 447                 .platform_data  = &mini2440_led3_pdata,
 448         },
 449 };
 450
 451 static struct platform_device mini2440_led4 = {
 452         .name           = "s3c24xx_led",
 453         .id             = 4,
 454         .dev            = {
 455                 .platform_data  = &mini2440_led4_pdata,
 456         },
 457 };
 458
 459 static struct platform_device mini2440_led_backlight = {
 460         .name           = "s3c24xx_led",
 461         .id             = 5,
 462         .dev            = {
 463                 .platform_data  = &mini2440_led_backlight_pdata,
 464         },
 465 };
 466
 467 /* AUDIO */
 468
 469 static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = {
 470         .l3_clk = S3C2410_GPB(4),
 471         .l3_mode = S3C2410_GPB(2),
 472         .l3_data = S3C2410_GPB(3),
 473         .model = UDA134X_UDA1341
 474 };
 475
 476 static struct platform_device mini2440_audio = {
 477         .name           = "s3c24xx_uda134x",
 478         .id             = 0,
 479         .dev            = {
 480                 .platform_data  = &mini2440_audio_pins,
 481         },
 482 };
 483
 484 /*
 485  * I2C devices
 486  */
 487 static struct at24_platform_data at24c08 = {
 488         .byte_len       = SZ_8K / 8,
 489         .page_size      = 16,
 490 };
 491
 492 static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
 493         {
 494                 I2C_BOARD_INFO("24c08", 0x50),
 495                 .platform_data = &at24c08,
 496         },
 497 };
 498
 499 static struct platform_device uda1340_codec = {
 500                 .name = "uda134x-codec",
 501                 .id = -1,
 502 };
 503
 504 static struct platform_device *mini2440_devices[] __initdata = {
 505         &s3c_device_ohci,
 506         &s3c_device_wdt,
 507         &s3c_device_i2c0,
 508         &s3c_device_rtc,
 509         &s3c_device_usbgadget,
 510         &mini2440_device_eth,
 511         &mini2440_led1,
 512         &mini2440_led2,
 513         &mini2440_led3,
 514         &mini2440_led4,
 515         &mini2440_button_device,
 516         &s3c_device_nand,
 517         &s3c_device_sdi,
 518         &s3c_device_iis,
 519         &uda1340_codec,
 520         &mini2440_audio,
 521 };
 522
 523 static void __init mini2440_map_io(void)
 524 {
 525         s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
 526         s3c24xx_init_clocks(12000000);
 527         s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
 528 }
 529
 530 /*
 531  * mini2440_features string
 532  *
 533  * t = Touchscreen present
 534  * b = backlight control
 535  * c = camera [TODO]
 536  * 0-9 LCD configuration
 537  *
 538  */
 539 static char mini2440_features_str[12] __initdata = "0tb";
 540
 541 static int __init mini2440_features_setup(char *str)
 542 {
 543         if (str)
 544                 strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
 545         return 1;
 546 }
 547
 548 __setup("mini2440=", mini2440_features_setup);
 549
 550 #define FEATURE_SCREEN (1 << 0)
 551 #define FEATURE_BACKLIGHT (1 << 1)
 552 #define FEATURE_TOUCH (1 << 2)
 553 #define FEATURE_CAMERA (1 << 3)
 554
 555 struct mini2440_features_t {
 556         int count;
 557         int done;
 558         int lcd_index;
 559         struct platform_device *optional[8];
 560 };
 561
 562 static void __init mini2440_parse_features(
 563                 struct mini2440_features_t * features,
 564                 const char * features_str )
 565 {
 566         const char * fp = features_str;
 567
 568         features->count = 0;
 569         features->done = 0;
 570         features->lcd_index = -1;
 571
 572         while (*fp) {
 573                 char f = *fp++;
 574
 575                 switch (f) {
 576                 case '0'...'9': /* tft screen */
 577                         if (features->done & FEATURE_SCREEN) {
 578                                 printk(KERN_INFO "MINI2440: '%c' ignored, "
 579                                         "screen type already set\n", f);
 580                         } else {
 581                                 int li = f - '0';
 582                                 if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
 583                                         printk(KERN_INFO "MINI2440: "
 584                                                 "'%c' out of range LCD mode\n", f);
 585                                 else {
 586                                         features->optional[features->count++] =
 587                                                         &s3c_device_lcd;
 588                                         features->lcd_index = li;
 589                                 }
 590                         }
 591                         features->done |= FEATURE_SCREEN;
 592                         break;
 593                 case 'b':
 594                         if (features->done & FEATURE_BACKLIGHT)
 595                                 printk(KERN_INFO "MINI2440: '%c' ignored, "
 596                                         "backlight already set\n", f);
 597                         else {
 598                                 features->optional[features->count++] =
 599                                                 &mini2440_led_backlight;
 600                         }
 601                         features->done |= FEATURE_BACKLIGHT;
 602                         break;
 603                 case 't':
 604                         printk(KERN_INFO "MINI2440: '%c' ignored, "
 605                                 "touchscreen not compiled in\n", f);
 606                         break;
 607                 case 'c':
 608                         if (features->done & FEATURE_CAMERA)
 609                                 printk(KERN_INFO "MINI2440: '%c' ignored, "
 610                                         "camera already registered\n", f);
 611                         else
 612                                 features->optional[features->count++] =
 613                                         &s3c_device_camif;
 614                         features->done |= FEATURE_CAMERA;
 615                         break;
 616                 }
 617         }
 618 }
 619
 620 static void __init mini2440_init(void)
 621 {
 622         struct mini2440_features_t features = { 0 };
 623         int i;
 624
 625         printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
 626                         mini2440_features_str);
 627
 628         /* Parse the feature string */
 629         mini2440_parse_features(&features, mini2440_features_str);
 630
 631         /* turn LCD on */
 632         s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
 633
 634         /* Turn the backlight early on */
 635         WARN_ON(gpio_request_one(S3C2410_GPG(4), GPIOF_OUT_INIT_HIGH, NULL));
 636         gpio_free(S3C2410_GPG(4));
 637
 638         /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
 639         gpio_request_one(S3C2410_GPB(1), GPIOF_IN, NULL);
 640         s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP);
 641         gpio_free(S3C2410_GPB(1));
 642
 643         /* mark the key as input, without pullups (there is one on the board) */
 644         for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
 645                 s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP);
 646                 s3c_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT);
 647         }
 648         if (features.lcd_index != -1) {
 649                 int li;
 650
 651                 mini2440_fb_info.displays =
 652                         &mini2440_lcd_cfg[features.lcd_index];
 653
 654                 printk(KERN_INFO "MINI2440: LCD");
 655                 for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
 656                         if (li == features.lcd_index)
 657                                 printk(" [%d:%dx%d]", li,
 658                                         mini2440_lcd_cfg[li].width,
 659                                         mini2440_lcd_cfg[li].height);
 660                         else
 661                                 printk(" %d:%dx%d", li,
 662                                         mini2440_lcd_cfg[li].width,
 663                                         mini2440_lcd_cfg[li].height);
 664                 printk("\n");
 665                 s3c24xx_fb_set_platdata(&mini2440_fb_info);
 666         }
 667
 668         s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
 669         s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
 670         s3c_nand_set_platdata(&mini2440_nand_info);
 671         s3c_i2c0_set_platdata(NULL);
 672
 673         i2c_register_board_info(0, mini2440_i2c_devs,
 674                                 ARRAY_SIZE(mini2440_i2c_devs));
 675
 676         platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
 677
 678         if (features.count)     /* the optional features */
 679                 platform_add_devices(features.optional, features.count);
 680
 681 }
 682
 683
 684 MACHINE_START(MINI2440, "MINI2440")
 685         /* Maintainer: Michel Pollet <buserror@gmail.com> */
 686         .atag_offset    = 0x100,
 687         .map_io         = mini2440_map_io,
 688         .init_machine   = mini2440_init,
 689         .init_irq       = s3c24xx_init_irq,
 690         .init_time      = s3c24xx_timer_init,
 691         .restart        = s3c244x_restart,
 692 MACHINE_END