arch/arm/mach-s3c2440/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 <mach/leds-gpio.h>
  43 #include <mach/regs-mem.h>
  44 #include <mach/regs-lcd.h>
  45 #include <mach/irqs.h>
  46 #include <plat/nand.h>
  47 #include <plat/iic.h>
  48 #include <plat/mci.h>
  49 #include <plat/udc.h>
  50
  51 #include <linux/mtd/mtd.h>
  52 #include <linux/mtd/nand.h>
  53 #include <linux/mtd/nand_ecc.h>
  54 #include <linux/mtd/partitions.h>
  55
  56 #include <plat/clock.h>
  57 #include <plat/devs.h>
  58 #include <plat/cpu.h>
  59
  60 #include <sound/s3c24xx_uda134x.h>
  61
  62 #define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)
  63
  64 static struct map_desc mini2440_iodesc[] __initdata = {
  65         /* nothing to declare, move along */
  66 };
  67
  68 #define UCON S3C2410_UCON_DEFAULT
  69 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  70 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  71
  72
  73 static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
  74         [0] = {
  75                 .hwport      = 0,
  76                 .flags       = 0,
  77                 .ucon        = UCON,
  78                 .ulcon       = ULCON,
  79                 .ufcon       = UFCON,
  80         },
  81         [1] = {
  82                 .hwport      = 1,
  83                 .flags       = 0,
  84                 .ucon        = UCON,
  85                 .ulcon       = ULCON,
  86                 .ufcon       = UFCON,
  87         },
  88         [2] = {
  89                 .hwport      = 2,
  90                 .flags       = 0,
  91                 .ucon        = UCON,
  92                 .ulcon       = ULCON,
  93                 .ufcon       = UFCON,
  94         },
  95 };
  96
  97 /* USB device UDC support */
  98
  99 static void mini2440_udc_pullup(enum s3c2410_udc_cmd_e cmd)
 100 {
 101         pr_debug("udc: pullup(%d)\n", cmd);
 102
 103         switch (cmd) {
 104                 case S3C2410_UDC_P_ENABLE :
 105                         s3c2410_gpio_setpin(S3C2410_GPC(5), 1);
 106                         break;
 107                 case S3C2410_UDC_P_DISABLE :
 108                         s3c2410_gpio_setpin(S3C2410_GPC(5), 0);
 109                         break;
 110                 case S3C2410_UDC_P_RESET :
 111                         break;
 112                 default:
 113                         break;
 114         }
 115 }
 116
 117 static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
 118         .udc_command            = mini2440_udc_pullup,
 119 };
 120
 121
 122 /* LCD timing and setup */
 123
 124 /*
 125  * This macro simplifies the table bellow
 126  */
 127 #define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
 128                         _yres,margin_top,margin_bottom,vsync, refresh) \
 129         .width = _xres, \
 130         .xres = _xres, \
 131         .height = _yres, \
 132         .yres = _yres, \
 133         .left_margin    = margin_left,  \
 134         .right_margin   = margin_right, \
 135         .upper_margin   = margin_top,   \
 136         .lower_margin   = margin_bottom,        \
 137         .hsync_len      = hsync,        \
 138         .vsync_len      = vsync,        \
 139         .pixclock       = ((_clock*100000000000LL) /    \
 140                            ((refresh) * \
 141                            (hsync + margin_left + _xres + margin_right) * \
 142                            (vsync + margin_top + _yres + margin_bottom))), \
 143         .bpp            = 16,\
 144         .type           = (S3C2410_LCDCON1_TFT16BPP |\
 145                            S3C2410_LCDCON1_TFT)
 146
 147 struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
 148         [0] = { /* mini2440 + 3.5" TFT + touchscreen */
 149                 _LCD_DECLARE(
 150                         7,                      /* The 3.5 is quite fast */
 151                         240, 21, 38, 6,         /* x timing */
 152                         320, 4, 4, 2,           /* y timing */
 153                         60),                    /* refresh rate */
 154                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 155                                    S3C2410_LCDCON5_INVVLINE |
 156                                    S3C2410_LCDCON5_INVVFRAME |
 157                                    S3C2410_LCDCON5_INVVDEN |
 158                                    S3C2410_LCDCON5_PWREN),
 159         },
 160         [1] = { /* mini2440 + 7" TFT + touchscreen */
 161                 _LCD_DECLARE(
 162                         10,                     /* the 7" runs slower */
 163                         800, 40, 40, 48,        /* x timing */
 164                         480, 29, 3, 3,          /* y timing */
 165                         50),                    /* refresh rate */
 166                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 167                                    S3C2410_LCDCON5_INVVLINE |
 168                                    S3C2410_LCDCON5_INVVFRAME |
 169                                    S3C2410_LCDCON5_PWREN),
 170         },
 171         /* The VGA shield can outout at several resolutions. All share
 172          * the same timings, however, anything smaller than 1024x768
 173          * will only be displayed in the top left corner of a 1024x768
 174          * XGA output unless you add optional dip switches to the shield.
 175          * Therefore timings for other resolutions have been ommited here.
 176          */
 177         [2] = {
 178                 _LCD_DECLARE(
 179                         10,
 180                         1024, 1, 2, 2,          /* y timing */
 181                         768, 200, 16, 16,       /* x timing */
 182                         24),    /* refresh rate, maximum stable,
 183                                  tested with the FPGA shield */
 184                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 185                                    S3C2410_LCDCON5_HWSWP),
 186         },
 187 };
 188
 189 /* todo - put into gpio header */
 190
 191 #define S3C2410_GPCCON_MASK(x)  (3 << ((x) * 2))
 192 #define S3C2410_GPDCON_MASK(x)  (3 << ((x) * 2))
 193
 194 struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
 195         .displays        = &mini2440_lcd_cfg[0], /* not constant! see init */
 196         .num_displays    = 1,
 197         .default_display = 0,
 198
 199         /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
 200          * and disable the pull down resistors on pins we are using for LCD
 201          * data. */
 202
 203         .gpcup          = (0xf << 1) | (0x3f << 10),
 204
 205         .gpccon         = (S3C2410_GPC1_VCLK   | S3C2410_GPC2_VLINE |
 206                            S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
 207                            S3C2410_GPC10_VD2   | S3C2410_GPC11_VD3 |
 208                            S3C2410_GPC12_VD4   | S3C2410_GPC13_VD5 |
 209                            S3C2410_GPC14_VD6   | S3C2410_GPC15_VD7),
 210
 211         .gpccon_mask    = (S3C2410_GPCCON_MASK(1)  | S3C2410_GPCCON_MASK(2)  |
 212                            S3C2410_GPCCON_MASK(3)  | S3C2410_GPCCON_MASK(4)  |
 213                            S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
 214                            S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
 215                            S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
 216
 217         .gpdup          = (0x3f << 2) | (0x3f << 10),
 218
 219         .gpdcon         = (S3C2410_GPD2_VD10  | S3C2410_GPD3_VD11 |
 220                            S3C2410_GPD4_VD12  | S3C2410_GPD5_VD13 |
 221                            S3C2410_GPD6_VD14  | S3C2410_GPD7_VD15 |
 222                            S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
 223                            S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
 224                            S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),
 225
 226         .gpdcon_mask    = (S3C2410_GPDCON_MASK(2)  | S3C2410_GPDCON_MASK(3) |
 227                            S3C2410_GPDCON_MASK(4)  | S3C2410_GPDCON_MASK(5) |
 228                            S3C2410_GPDCON_MASK(6)  | S3C2410_GPDCON_MASK(7) |
 229                            S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
 230                            S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
 231                            S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
 232 };
 233
 234 /* MMC/SD  */
 235
 236 static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
 237    .gpio_detect   = S3C2410_GPG(8),
 238    .gpio_wprotect = S3C2410_GPH(8),
 239    .set_power     = NULL,
 240    .ocr_avail     = MMC_VDD_32_33|MMC_VDD_33_34,
 241 };
 242
 243 /* NAND Flash on MINI2440 board */
 244
 245 static struct mtd_partition mini2440_default_nand_part[] __initdata = {
 246         [0] = {
 247                 .name   = "u-boot",
 248                 .size   = SZ_256K,
 249                 .offset = 0,
 250         },
 251         [1] = {
 252                 .name   = "u-boot-env",
 253                 .size   = SZ_128K,
 254                 .offset = SZ_256K,
 255         },
 256         [2] = {
 257                 .name   = "kernel",
 258                 /* 5 megabytes, for a kernel with no modules
 259                  * or a uImage with a ramdisk attached */
 260                 .size   = 0x00500000,
 261                 .offset = SZ_256K + SZ_128K,
 262         },
 263         [3] = {
 264                 .name   = "root",
 265                 .offset = SZ_256K + SZ_128K + 0x00500000,
 266                 .size   = MTDPART_SIZ_FULL,
 267         },
 268 };
 269
 270 static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
 271         [0] = {
 272                 .name           = "nand",
 273                 .nr_chips       = 1,
 274                 .nr_partitions  = ARRAY_SIZE(mini2440_default_nand_part),
 275                 .partitions     = mini2440_default_nand_part,
 276                 .flash_bbt      = 1, /* we use u-boot to create a BBT */
 277         },
 278 };
 279
 280 static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
 281         .tacls          = 0,
 282         .twrph0         = 25,
 283         .twrph1         = 15,
 284         .nr_sets        = ARRAY_SIZE(mini2440_nand_sets),
 285         .sets           = mini2440_nand_sets,
 286         .ignore_unset_ecc = 1,
 287 };
 288
 289 /* DM9000AEP 10/100 ethernet controller */
 290
 291 static struct resource mini2440_dm9k_resource[] __initdata = {
 292         [0] = {
 293                 .start = MACH_MINI2440_DM9K_BASE,
 294                 .end   = MACH_MINI2440_DM9K_BASE + 3,
 295                 .flags = IORESOURCE_MEM
 296         },
 297         [1] = {
 298                 .start = MACH_MINI2440_DM9K_BASE + 4,
 299                 .end   = MACH_MINI2440_DM9K_BASE + 7,
 300                 .flags = IORESOURCE_MEM
 301         },
 302         [2] = {
 303                 .start = IRQ_EINT7,
 304                 .end   = IRQ_EINT7,
 305                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 306         }
 307 };
 308
 309 /*
 310  * The DM9000 has no eeprom, and it's MAC address is set by
 311  * the bootloader before starting the kernel.
 312  */
 313 static struct dm9000_plat_data mini2440_dm9k_pdata __initdata = {
 314         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 315 };
 316
 317 static struct platform_device mini2440_device_eth __initdata = {
 318         .name           = "dm9000",
 319         .id             = -1,
 320         .num_resources  = ARRAY_SIZE(mini2440_dm9k_resource),
 321         .resource       = mini2440_dm9k_resource,
 322         .dev            = {
 323                 .platform_data  = &mini2440_dm9k_pdata,
 324         },
 325 };
 326
 327 /*  CON5
 328  *      +--+     /-----\
 329  *      |  |    |       |
 330  *      |  |    |  BAT  |
 331  *      |  |     \_____/
 332  *      |  |
 333  *      |  |  +----+  +----+
 334  *      |  |  | K5 |  | K1 |
 335  *      |  |  +----+  +----+
 336  *      |  |  +----+  +----+
 337  *      |  |  | K4 |  | K2 |
 338  *      |  |  +----+  +----+
 339  *      |  |  +----+  +----+
 340  *      |  |  | K6 |  | K3 |
 341  *      |  |  +----+  +----+
 342  *        .....
 343  */
 344 static struct gpio_keys_button mini2440_buttons[] __initdata = {
 345         {
 346                 .gpio           = S3C2410_GPG(0),               /* K1 */
 347                 .code           = KEY_F1,
 348                 .desc           = "Button 1",
 349                 .active_low     = 1,
 350         },
 351         {
 352                 .gpio           = S3C2410_GPG(3),               /* K2 */
 353                 .code           = KEY_F2,
 354                 .desc           = "Button 2",
 355                 .active_low     = 1,
 356         },
 357         {
 358                 .gpio           = S3C2410_GPG(5),               /* K3 */
 359                 .code           = KEY_F3,
 360                 .desc           = "Button 3",
 361                 .active_low     = 1,
 362         },
 363         {
 364                 .gpio           = S3C2410_GPG(6),               /* K4 */
 365                 .code           = KEY_POWER,
 366                 .desc           = "Power",
 367                 .active_low     = 1,
 368         },
 369         {
 370                 .gpio           = S3C2410_GPG(7),               /* K5 */
 371                 .code           = KEY_F5,
 372                 .desc           = "Button 5",
 373                 .active_low     = 1,
 374         },
 375 #if 0
 376         /* this pin is also known as TCLK1 and seems to already
 377          * marked as "in use" somehow in the kernel -- possibly wrongly */
 378         {
 379                 .gpio           = S3C2410_GPG(11),      /* K6 */
 380                 .code           = KEY_F6,
 381                 .desc           = "Button 6",
 382                 .active_low     = 1,
 383         },
 384 #endif
 385 };
 386
 387 static struct gpio_keys_platform_data mini2440_button_data __initdata = {
 388         .buttons        = mini2440_buttons,
 389         .nbuttons       = ARRAY_SIZE(mini2440_buttons),
 390 };
 391
 392 static struct platform_device mini2440_button_device __initdata = {
 393         .name           = "gpio-keys",
 394         .id             = -1,
 395         .dev            = {
 396                 .platform_data  = &mini2440_button_data,
 397         }
 398 };
 399
 400 /* LEDS */
 401
 402 static struct s3c24xx_led_platdata mini2440_led1_pdata __initdata = {
 403         .name           = "led1",
 404         .gpio           = S3C2410_GPB(5),
 405         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 406         .def_trigger    = "heartbeat",
 407 };
 408
 409 static struct s3c24xx_led_platdata mini2440_led2_pdata __initdata = {
 410         .name           = "led2",
 411         .gpio           = S3C2410_GPB(6),
 412         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 413         .def_trigger    = "nand-disk",
 414 };
 415
 416 static struct s3c24xx_led_platdata mini2440_led3_pdata __initdata = {
 417         .name           = "led3",
 418         .gpio           = S3C2410_GPB(7),
 419         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 420         .def_trigger    = "mmc0",
 421 };
 422
 423 static struct s3c24xx_led_platdata mini2440_led4_pdata __initdata = {
 424         .name           = "led4",
 425         .gpio           = S3C2410_GPB(8),
 426         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 427         .def_trigger    = "",
 428 };
 429
 430 static struct s3c24xx_led_platdata mini2440_led_backlight_pdata __initdata = {
 431         .name           = "backlight",
 432         .gpio           = S3C2410_GPG(4),
 433         .def_trigger    = "backlight",
 434 };
 435
 436 static struct platform_device mini2440_led1 __initdata = {
 437         .name           = "s3c24xx_led",
 438         .id             = 1,
 439         .dev            = {
 440                 .platform_data  = &mini2440_led1_pdata,
 441         },
 442 };
 443
 444 static struct platform_device mini2440_led2 __initdata = {
 445         .name           = "s3c24xx_led",
 446         .id             = 2,
 447         .dev            = {
 448                 .platform_data  = &mini2440_led2_pdata,
 449         },
 450 };
 451
 452 static struct platform_device mini2440_led3 __initdata = {
 453         .name           = "s3c24xx_led",
 454         .id             = 3,
 455         .dev            = {
 456                 .platform_data  = &mini2440_led3_pdata,
 457         },
 458 };
 459
 460 static struct platform_device mini2440_led4 __initdata = {
 461         .name           = "s3c24xx_led",
 462         .id             = 4,
 463         .dev            = {
 464                 .platform_data  = &mini2440_led4_pdata,
 465         },
 466 };
 467
 468 static struct platform_device mini2440_led_backlight __initdata = {
 469         .name           = "s3c24xx_led",
 470         .id             = 5,
 471         .dev            = {
 472                 .platform_data  = &mini2440_led_backlight_pdata,
 473         },
 474 };
 475
 476 /* AUDIO */
 477
 478 static struct s3c24xx_uda134x_platform_data mini2440_audio_pins __initdata = {
 479         .l3_clk = S3C2410_GPB(4),
 480         .l3_mode = S3C2410_GPB(2),
 481         .l3_data = S3C2410_GPB(3),
 482         .model = UDA134X_UDA1341
 483 };
 484
 485 static struct platform_device mini2440_audio __initdata = {
 486         .name           = "s3c24xx_uda134x",
 487         .id             = 0,
 488         .dev            = {
 489                 .platform_data  = &mini2440_audio_pins,
 490         },
 491 };
 492
 493 /*
 494  * I2C devices
 495  */
 496 static struct at24_platform_data at24c08 = {
 497         .byte_len       = SZ_8K / 8,
 498         .page_size      = 16,
 499 };
 500
 501 static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
 502         {
 503                 I2C_BOARD_INFO("24c08", 0x50),
 504                 .platform_data = &at24c08,
 505         },
 506 };
 507
 508 static struct platform_device *mini2440_devices[] __initdata = {
 509         &s3c_device_usb,
 510         &s3c_device_wdt,
 511 /*      &s3c_device_adc,*/ /* ADC doesn't like living with touchscreen ! */
 512         &s3c_device_i2c0,
 513         &s3c_device_rtc,
 514         &s3c_device_usbgadget,
 515         &mini2440_device_eth,
 516         &mini2440_led1,
 517         &mini2440_led2,
 518         &mini2440_led3,
 519         &mini2440_led4,
 520         &mini2440_button_device,
 521         &s3c_device_nand,
 522         &s3c_device_sdi,
 523         &s3c_device_iis,
 524         &mini2440_audio,
 525 /*      &s3c_device_timer[0],*/ /* buzzer pwm, no API for it */
 526         /* remaining devices are optional */
 527 };
 528
 529 static void __init mini2440_map_io(void)
 530 {
 531         s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
 532         s3c24xx_init_clocks(12000000);
 533         s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
 534
 535         s3c_device_nand.dev.platform_data = &mini2440_nand_info;
 536         s3c_device_sdi.dev.platform_data = &mini2440_mmc_cfg;
 537 }
 538
 539 /*
 540  * mini2440_features string
 541  *
 542  * t = Touchscreen present
 543  * b = backlight control
 544  * c = camera [TODO]
 545  * 0-9 LCD configuration
 546  *
 547  */
 548 static char mini2440_features_str[12] __initdata = "0tb";
 549
 550 static int __init mini2440_features_setup(char *str)
 551 {
 552         if (str)
 553                 strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
 554         return 1;
 555 }
 556
 557 __setup("mini2440=", mini2440_features_setup);
 558
 559 #define FEATURE_SCREEN (1 << 0)
 560 #define FEATURE_BACKLIGHT (1 << 1)
 561 #define FEATURE_TOUCH (1 << 2)
 562 #define FEATURE_CAMERA (1 << 3)
 563
 564 struct mini2440_features_t {
 565         int count;
 566         int done;
 567         int lcd_index;
 568         struct platform_device *optional[8];
 569 };
 570
 571 static void mini2440_parse_features(
 572                 struct mini2440_features_t * features,
 573                 const char * features_str )
 574 {
 575         const char * fp = features_str;
 576
 577         features->count = 0;
 578         features->done = 0;
 579         features->lcd_index = -1;
 580
 581         while (*fp) {
 582                 char f = *fp++;
 583
 584                 switch (f) {
 585                 case '0'...'9': /* tft screen */
 586                         if (features->done & FEATURE_SCREEN) {
 587                                 printk(KERN_INFO "MINI2440: '%c' ignored, "
 588                                         "screen type already set\n", f);
 589                         } else {
 590                                 int li = f - '0';
 591                                 if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
 592                                         printk(KERN_INFO "MINI2440: "
 593                                                 "'%c' out of range LCD mode\n", f);
 594                                 else {
 595                                         features->optional[features->count++] =
 596                                                         &s3c_device_lcd;
 597                                         features->lcd_index = li;
 598                                 }
 599                         }
 600                         features->done |= FEATURE_SCREEN;
 601                         break;
 602                 case 'b':
 603                         if (features->done & FEATURE_BACKLIGHT)
 604                                 printk(KERN_INFO "MINI2440: '%c' ignored, "
 605                                         "backlight already set\n", f);
 606                         else {
 607                                 features->optional[features->count++] =
 608                                                 &mini2440_led_backlight;
 609                         }
 610                         features->done |= FEATURE_BACKLIGHT;
 611                         break;
 612                 case 't':
 613                         printk(KERN_INFO "MINI2440: '%c' ignored, "
 614                                 "touchscreen not compiled in\n", f);
 615                         break;
 616                 case 'c':
 617                         if (features->done & FEATURE_CAMERA)
 618                                 printk(KERN_INFO "MINI2440: '%c' ignored, "
 619                                         "camera already registered\n", f);
 620                         else
 621                                 features->optional[features->count++] =
 622                                         &s3c_device_camif;
 623                         features->done |= FEATURE_CAMERA;
 624                         break;
 625                 }
 626         }
 627 }
 628
 629 static void __init mini2440_init(void)
 630 {
 631         struct mini2440_features_t features = { 0 };
 632         int i;
 633
 634         printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
 635                         mini2440_features_str);
 636
 637         /* Parse the feature string */
 638         mini2440_parse_features(&features, mini2440_features_str);
 639
 640         /* turn LCD on */
 641         s3c2410_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
 642
 643         /* Turn the backlight early on */
 644         s3c2410_gpio_setpin(S3C2410_GPG(4), 1);
 645         s3c2410_gpio_cfgpin(S3C2410_GPG(4), S3C2410_GPIO_OUTPUT);
 646
 647         /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
 648         s3c2410_gpio_pullup(S3C2410_GPB(1), 0);
 649         s3c2410_gpio_setpin(S3C2410_GPB(1), 0);
 650         s3c2410_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPIO_INPUT);
 651
 652         /* Make sure the D+ pullup pin is output */
 653         s3c2410_gpio_cfgpin(S3C2410_GPC(5), S3C2410_GPIO_OUTPUT);
 654
 655         /* mark the key as input, without pullups (there is one on the board) */
 656         for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
 657                 s3c2410_gpio_pullup(mini2440_buttons[i].gpio, 0);
 658                 s3c2410_gpio_cfgpin(mini2440_buttons[i].gpio,
 659                                         S3C2410_GPIO_INPUT);
 660         }
 661         if (features.lcd_index != -1) {
 662                 int li;
 663
 664                 mini2440_fb_info.displays =
 665                         &mini2440_lcd_cfg[features.lcd_index];
 666
 667                 printk(KERN_INFO "MINI2440: LCD");
 668                 for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
 669                         if (li == features.lcd_index)
 670                                 printk(" [%d:%dx%d]", li,
 671                                         mini2440_lcd_cfg[li].width,
 672                                         mini2440_lcd_cfg[li].height);
 673                         else
 674                                 printk(" %d:%dx%d", li,
 675                                         mini2440_lcd_cfg[li].width,
 676                                         mini2440_lcd_cfg[li].height);
 677                 printk("\n");
 678                 s3c24xx_fb_set_platdata(&mini2440_fb_info);
 679         }
 680         s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
 681         s3c_i2c0_set_platdata(NULL);
 682         i2c_register_board_info(0, mini2440_i2c_devs,
 683                                 ARRAY_SIZE(mini2440_i2c_devs));
 684
 685         platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
 686
 687         if (features.count)     /* the optional features */
 688                 platform_add_devices(features.optional, features.count);
 689
 690 }
 691
 692
 693 MACHINE_START(MINI2440, "MINI2440")
 694         /* Maintainer: Michel Pollet <buserror@gmail.com> */
 695         .phys_io        = S3C2410_PA_UART,
 696         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 697         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 698         .map_io         = mini2440_map_io,
 699         .init_machine   = mini2440_init,
 700         .init_irq       = s3c24xx_init_irq,
 701         .timer          = &s3c24xx_timer,
 702 MACHINE_END