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