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
  53 #include <linux/mtd/mtd.h>
  54 #include <linux/mtd/nand.h>
  55 #include <linux/mtd/nand_ecc.h>
  56 #include <linux/mtd/partitions.h>
  57
  58 #include <plat/clock.h>
  59 #include <plat/devs.h>
  60 #include <plat/cpu.h>
  61
  62 #include <sound/s3c24xx_uda134x.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 void mini2440_udc_pullup(enum s3c2410_udc_cmd_e cmd)
 102 {
 103         pr_debug("udc: pullup(%d)\n", cmd);
 104
 105         switch (cmd) {
 106                 case S3C2410_UDC_P_ENABLE :
 107                         s3c2410_gpio_setpin(S3C2410_GPC(5), 1);
 108                         break;
 109                 case S3C2410_UDC_P_DISABLE :
 110                         s3c2410_gpio_setpin(S3C2410_GPC(5), 0);
 111                         break;
 112                 case S3C2410_UDC_P_RESET :
 113                         break;
 114                 default:
 115                         break;
 116         }
 117 }
 118
 119 static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
 120         .udc_command            = mini2440_udc_pullup,
 121 };
 122
 123
 124 /* LCD timing and setup */
 125
 126 /*
 127  * This macro simplifies the table bellow
 128  */
 129 #define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
 130                         _yres,margin_top,margin_bottom,vsync, refresh) \
 131         .width = _xres, \
 132         .xres = _xres, \
 133         .height = _yres, \
 134         .yres = _yres, \
 135         .left_margin    = margin_left,  \
 136         .right_margin   = margin_right, \
 137         .upper_margin   = margin_top,   \
 138         .lower_margin   = margin_bottom,        \
 139         .hsync_len      = hsync,        \
 140         .vsync_len      = vsync,        \
 141         .pixclock       = ((_clock*100000000000LL) /    \
 142                            ((refresh) * \
 143                            (hsync + margin_left + _xres + margin_right) * \
 144                            (vsync + margin_top + _yres + margin_bottom))), \
 145         .bpp            = 16,\
 146         .type           = (S3C2410_LCDCON1_TFT16BPP |\
 147                            S3C2410_LCDCON1_TFT)
 148
 149 struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
 150         [0] = { /* mini2440 + 3.5" TFT + touchscreen */
 151                 _LCD_DECLARE(
 152                         7,                      /* The 3.5 is quite fast */
 153                         240, 21, 38, 6,         /* x timing */
 154                         320, 4, 4, 2,           /* y timing */
 155                         60),                    /* refresh rate */
 156                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 157                                    S3C2410_LCDCON5_INVVLINE |
 158                                    S3C2410_LCDCON5_INVVFRAME |
 159                                    S3C2410_LCDCON5_INVVDEN |
 160                                    S3C2410_LCDCON5_PWREN),
 161         },
 162         [1] = { /* mini2440 + 7" TFT + touchscreen */
 163                 _LCD_DECLARE(
 164                         10,                     /* the 7" runs slower */
 165                         800, 40, 40, 48,        /* x timing */
 166                         480, 29, 3, 3,          /* y timing */
 167                         50),                    /* refresh rate */
 168                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 169                                    S3C2410_LCDCON5_INVVLINE |
 170                                    S3C2410_LCDCON5_INVVFRAME |
 171                                    S3C2410_LCDCON5_PWREN),
 172         },
 173         /* The VGA shield can outout at several resolutions. All share
 174          * the same timings, however, anything smaller than 1024x768
 175          * will only be displayed in the top left corner of a 1024x768
 176          * XGA output unless you add optional dip switches to the shield.
 177          * Therefore timings for other resolutions have been ommited here.
 178          */
 179         [2] = {
 180                 _LCD_DECLARE(
 181                         10,
 182                         1024, 1, 2, 2,          /* y timing */
 183                         768, 200, 16, 16,       /* x timing */
 184                         24),    /* refresh rate, maximum stable,
 185                                  tested with the FPGA shield */
 186                 .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 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 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         },
 279 };
 280
 281 static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
 282         .tacls          = 0,
 283         .twrph0         = 25,
 284         .twrph1         = 15,
 285         .nr_sets        = ARRAY_SIZE(mini2440_nand_sets),
 286         .sets           = mini2440_nand_sets,
 287         .ignore_unset_ecc = 1,
 288 };
 289
 290 /* DM9000AEP 10/100 ethernet controller */
 291
 292 static struct resource mini2440_dm9k_resource[] __initdata = {
 293         [0] = {
 294                 .start = MACH_MINI2440_DM9K_BASE,
 295                 .end   = MACH_MINI2440_DM9K_BASE + 3,
 296                 .flags = IORESOURCE_MEM
 297         },
 298         [1] = {
 299                 .start = MACH_MINI2440_DM9K_BASE + 4,
 300                 .end   = MACH_MINI2440_DM9K_BASE + 7,
 301                 .flags = IORESOURCE_MEM
 302         },
 303         [2] = {
 304                 .start = IRQ_EINT7,
 305                 .end   = IRQ_EINT7,
 306                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 307         }
 308 };
 309
 310 /*
 311  * The DM9000 has no eeprom, and it's MAC address is set by
 312  * the bootloader before starting the kernel.
 313  */
 314 static struct dm9000_plat_data mini2440_dm9k_pdata __initdata = {
 315         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 316 };
 317
 318 static struct platform_device mini2440_device_eth __initdata = {
 319         .name           = "dm9000",
 320         .id             = -1,
 321         .num_resources  = ARRAY_SIZE(mini2440_dm9k_resource),
 322         .resource       = mini2440_dm9k_resource,
 323         .dev            = {
 324                 .platform_data  = &mini2440_dm9k_pdata,
 325         },
 326 };
 327
 328 /*  CON5
 329  *      +--+     /-----\
 330  *      |  |    |       |
 331  *      |  |    |  BAT  |
 332  *      |  |     \_____/
 333  *      |  |
 334  *      |  |  +----+  +----+
 335  *      |  |  | K5 |  | K1 |
 336  *      |  |  +----+  +----+
 337  *      |  |  +----+  +----+
 338  *      |  |  | K4 |  | K2 |
 339  *      |  |  +----+  +----+
 340  *      |  |  +----+  +----+
 341  *      |  |  | K6 |  | K3 |
 342  *      |  |  +----+  +----+
 343  *        .....
 344  */
 345 static struct gpio_keys_button mini2440_buttons[] __initdata = {
 346         {
 347                 .gpio           = S3C2410_GPG(0),               /* K1 */
 348                 .code           = KEY_F1,
 349                 .desc           = "Button 1",
 350                 .active_low     = 1,
 351         },
 352         {
 353                 .gpio           = S3C2410_GPG(3),               /* K2 */
 354                 .code           = KEY_F2,
 355                 .desc           = "Button 2",
 356                 .active_low     = 1,
 357         },
 358         {
 359                 .gpio           = S3C2410_GPG(5),               /* K3 */
 360                 .code           = KEY_F3,
 361                 .desc           = "Button 3",
 362                 .active_low     = 1,
 363         },
 364         {
 365                 .gpio           = S3C2410_GPG(6),               /* K4 */
 366                 .code           = KEY_POWER,
 367                 .desc           = "Power",
 368                 .active_low     = 1,
 369         },
 370         {
 371                 .gpio           = S3C2410_GPG(7),               /* K5 */
 372                 .code           = KEY_F5,
 373                 .desc           = "Button 5",
 374                 .active_low     = 1,
 375         },
 376 #if 0
 377         /* this pin is also known as TCLK1 and seems to already
 378          * marked as "in use" somehow in the kernel -- possibly wrongly */
 379         {
 380                 .gpio           = S3C2410_GPG(11),      /* K6 */
 381                 .code           = KEY_F6,
 382                 .desc           = "Button 6",
 383                 .active_low     = 1,
 384         },
 385 #endif
 386 };
 387
 388 static struct gpio_keys_platform_data mini2440_button_data __initdata = {
 389         .buttons        = mini2440_buttons,
 390         .nbuttons       = ARRAY_SIZE(mini2440_buttons),
 391 };
 392
 393 static struct platform_device mini2440_button_device __initdata = {
 394         .name           = "gpio-keys",
 395         .id             = -1,
 396         .dev            = {
 397                 .platform_data  = &mini2440_button_data,
 398         }
 399 };
 400
 401 /* LEDS */
 402
 403 static struct s3c24xx_led_platdata mini2440_led1_pdata __initdata = {
 404         .name           = "led1",
 405         .gpio           = S3C2410_GPB(5),
 406         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 407         .def_trigger    = "heartbeat",
 408 };
 409
 410 static struct s3c24xx_led_platdata mini2440_led2_pdata __initdata = {
 411         .name           = "led2",
 412         .gpio           = S3C2410_GPB(6),
 413         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 414         .def_trigger    = "nand-disk",
 415 };
 416
 417 static struct s3c24xx_led_platdata mini2440_led3_pdata __initdata = {
 418         .name           = "led3",
 419         .gpio           = S3C2410_GPB(7),
 420         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 421         .def_trigger    = "mmc0",
 422 };
 423
 424 static struct s3c24xx_led_platdata mini2440_led4_pdata __initdata = {
 425         .name           = "led4",
 426         .gpio           = S3C2410_GPB(8),
 427         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 428         .def_trigger    = "",
 429 };
 430
 431 static struct s3c24xx_led_platdata mini2440_led_backlight_pdata __initdata = {
 432         .name           = "backlight",
 433         .gpio           = S3C2410_GPG(4),
 434         .def_trigger    = "backlight",
 435 };
 436
 437 static struct platform_device mini2440_led1 __initdata = {
 438         .name           = "s3c24xx_led",
 439         .id             = 1,
 440         .dev            = {
 441                 .platform_data  = &mini2440_led1_pdata,
 442         },
 443 };
 444
 445 static struct platform_device mini2440_led2 __initdata = {
 446         .name           = "s3c24xx_led",
 447         .id             = 2,
 448         .dev            = {
 449                 .platform_data  = &mini2440_led2_pdata,
 450         },
 451 };
 452
 453 static struct platform_device mini2440_led3 __initdata = {
 454         .name           = "s3c24xx_led",
 455         .id             = 3,
 456         .dev            = {
 457                 .platform_data  = &mini2440_led3_pdata,
 458         },
 459 };
 460
 461 static struct platform_device mini2440_led4 __initdata = {
 462         .name           = "s3c24xx_led",
 463         .id             = 4,
 464         .dev            = {
 465                 .platform_data  = &mini2440_led4_pdata,
 466         },
 467 };
 468
 469 static struct platform_device mini2440_led_backlight __initdata = {
 470         .name           = "s3c24xx_led",
 471         .id             = 5,
 472         .dev            = {
 473                 .platform_data  = &mini2440_led_backlight_pdata,
 474         },
 475 };
 476
 477 /* AUDIO */
 478
 479 static struct s3c24xx_uda134x_platform_data mini2440_audio_pins __initdata = {
 480         .l3_clk = S3C2410_GPB(4),
 481         .l3_mode = S3C2410_GPB(2),
 482         .l3_data = S3C2410_GPB(3),
 483         .model = UDA134X_UDA1341
 484 };
 485
 486 static struct platform_device mini2440_audio __initdata = {
 487         .name           = "s3c24xx_uda134x",
 488         .id             = 0,
 489         .dev            = {
 490                 .platform_data  = &mini2440_audio_pins,
 491         },
 492 };
 493
 494 /*
 495  * I2C devices
 496  */
 497 static struct at24_platform_data at24c08 = {
 498         .byte_len       = SZ_8K / 8,
 499         .page_size      = 16,
 500 };
 501
 502 static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
 503         {
 504                 I2C_BOARD_INFO("24c08", 0x50),
 505                 .platform_data = &at24c08,
 506         },
 507 };
 508
 509 static struct platform_device *mini2440_devices[] __initdata = {
 510         &s3c_device_usb,
 511         &s3c_device_wdt,
 512 /*      &s3c_device_adc,*/ /* ADC doesn't like living with touchscreen ! */
 513         &s3c_device_i2c0,
 514         &s3c_device_rtc,
 515         &s3c_device_usbgadget,
 516         &mini2440_device_eth,
 517         &mini2440_led1,
 518         &mini2440_led2,
 519         &mini2440_led3,
 520         &mini2440_led4,
 521         &mini2440_button_device,
 522         &s3c_device_nand,
 523         &s3c_device_sdi,
 524         &s3c_device_iis,
 525         &mini2440_audio,
 526 /*      &s3c_device_timer[0],*/ /* buzzer pwm, no API for it */
 527         /* remaining devices are optional */
 528 };
 529
 530 static void __init mini2440_map_io(void)
 531 {
 532         s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
 533         s3c24xx_init_clocks(12000000);
 534         s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
 535
 536         s3c_device_nand.dev.platform_data = &mini2440_nand_info;
 537         s3c_device_sdi.dev.platform_data = &mini2440_mmc_cfg;
 538 }
 539
 540 /*
 541  * mini2440_features string
 542  *
 543  * t = Touchscreen present
 544  * b = backlight control
 545  * c = camera [TODO]
 546  * 0-9 LCD configuration
 547  *
 548  */
 549 static char mini2440_features_str[12] __initdata = "0tb";
 550
 551 static int __init mini2440_features_setup(char *str)
 552 {
 553         if (str)
 554                 strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
 555         return 1;
 556 }
 557
 558 __setup("mini2440=", mini2440_features_setup);
 559
 560 #define FEATURE_SCREEN (1 << 0)
 561 #define FEATURE_BACKLIGHT (1 << 1)
 562 #define FEATURE_TOUCH (1 << 2)
 563 #define FEATURE_CAMERA (1 << 3)
 564
 565 struct mini2440_features_t {
 566         int count;
 567         int done;
 568         int lcd_index;
 569         struct platform_device *optional[8];
 570 };
 571
 572 static void mini2440_parse_features(
 573                 struct mini2440_features_t * features,
 574                 const char * features_str )
 575 {
 576         const char * fp = features_str;
 577
 578         features->count = 0;
 579         features->done = 0;
 580         features->lcd_index = -1;
 581
 582         while (*fp) {
 583                 char f = *fp++;
 584
 585                 switch (f) {
 586                 case '0'...'9': /* tft screen */
 587                         if (features->done & FEATURE_SCREEN) {
 588                                 printk(KERN_INFO "MINI2440: '%c' ignored, "
 589                                         "screen type already set\n", f);
 590                         } else {
 591                                 int li = f - '0';
 592                                 if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
 593                                         printk(KERN_INFO "MINI2440: "
 594                                                 "'%c' out of range LCD mode\n", f);
 595                                 else {
 596                                         features->optional[features->count++] =
 597                                                         &s3c_device_lcd;
 598                                         features->lcd_index = li;
 599                                 }
 600                         }
 601                         features->done |= FEATURE_SCREEN;
 602                         break;
 603                 case 'b':
 604                         if (features->done & FEATURE_BACKLIGHT)
 605                                 printk(KERN_INFO "MINI2440: '%c' ignored, "
 606                                         "backlight already set\n", f);
 607                         else {
 608                                 features->optional[features->count++] =
 609                                                 &mini2440_led_backlight;
 610                         }
 611                         features->done |= FEATURE_BACKLIGHT;
 612                         break;
 613                 case 't':
 614                         printk(KERN_INFO "MINI2440: '%c' ignored, "
 615                                 "touchscreen not compiled in\n", f);
 616                         break;
 617                 case 'c':
 618                         if (features->done & FEATURE_CAMERA)
 619                                 printk(KERN_INFO "MINI2440: '%c' ignored, "
 620                                         "camera already registered\n", f);
 621                         else
 622                                 features->optional[features->count++] =
 623                                         &s3c_device_camif;
 624                         features->done |= FEATURE_CAMERA;
 625                         break;
 626                 }
 627         }
 628 }
 629
 630 static void __init mini2440_init(void)
 631 {
 632         struct mini2440_features_t features = { 0 };
 633         int i;
 634
 635         printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
 636                         mini2440_features_str);
 637
 638         /* Parse the feature string */
 639         mini2440_parse_features(&features, mini2440_features_str);
 640
 641         /* turn LCD on */
 642         s3c2410_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
 643
 644         /* Turn the backlight early on */
 645         s3c2410_gpio_setpin(S3C2410_GPG(4), 1);
 646         s3c2410_gpio_cfgpin(S3C2410_GPG(4), S3C2410_GPIO_OUTPUT);
 647
 648         /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
 649         s3c2410_gpio_pullup(S3C2410_GPB(1), 0);
 650         s3c2410_gpio_setpin(S3C2410_GPB(1), 0);
 651         s3c2410_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPIO_INPUT);
 652
 653         /* Make sure the D+ pullup pin is output */
 654         s3c2410_gpio_cfgpin(S3C2410_GPC(5), S3C2410_GPIO_OUTPUT);
 655
 656         /* mark the key as input, without pullups (there is one on the board) */
 657         for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
 658                 s3c2410_gpio_pullup(mini2440_buttons[i].gpio, 0);
 659                 s3c2410_gpio_cfgpin(mini2440_buttons[i].gpio,
 660                                         S3C2410_GPIO_INPUT);
 661         }
 662         if (features.lcd_index != -1) {
 663                 int li;
 664
 665                 mini2440_fb_info.displays =
 666                         &mini2440_lcd_cfg[features.lcd_index];
 667
 668                 printk(KERN_INFO "MINI2440: LCD");
 669                 for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
 670                         if (li == features.lcd_index)
 671                                 printk(" [%d:%dx%d]", li,
 672                                         mini2440_lcd_cfg[li].width,
 673                                         mini2440_lcd_cfg[li].height);
 674                         else
 675                                 printk(" %d:%dx%d", li,
 676                                         mini2440_lcd_cfg[li].width,
 677                                         mini2440_lcd_cfg[li].height);
 678                 printk("\n");
 679                 s3c24xx_fb_set_platdata(&mini2440_fb_info);
 680         }
 681         s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
 682         s3c_i2c0_set_platdata(NULL);
 683         i2c_register_board_info(0, mini2440_i2c_devs,
 684                                 ARRAY_SIZE(mini2440_i2c_devs));
 685
 686         platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
 687
 688         if (features.count)     /* the optional features */
 689                 platform_add_devices(features.optional, features.count);
 690
 691 }
 692
 693
 694 MACHINE_START(MINI2440, "MINI2440")
 695         /* Maintainer: Michel Pollet <buserror@gmail.com> */
 696         .phys_io        = S3C2410_PA_UART,
 697         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 698         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 699         .map_io         = mini2440_map_io,
 700         .init_machine   = mini2440_init,
 701         .init_irq       = s3c24xx_init_irq,
 702         .timer          = &s3c24xx_timer,
 703 MACHINE_END