LXR linux/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#include <plat/samsung-time.h>
  60
  61#include <sound/s3c24xx_uda134x.h>
  62
  63#include "common.h"
  64
  65#define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)
  66
  67static struct map_desc mini2440_iodesc[] __initdata = {
  68        /* nothing to declare, move along */
  69};
  70
  71#define UCON S3C2410_UCON_DEFAULT
  72#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  73#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  74
  75
  76static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
  77        [0] = {
  78                .hwport      = 0,
  79                .flags       = 0,
  80                .ucon        = UCON,
  81                .ulcon       = ULCON,
  82                .ufcon       = UFCON,
  83        },
  84        [1] = {
  85                .hwport      = 1,
  86                .flags       = 0,
  87                .ucon        = UCON,
  88                .ulcon       = ULCON,
  89                .ufcon       = UFCON,
  90        },
  91        [2] = {
  92                .hwport      = 2,
  93                .flags       = 0,
  94                .ucon        = UCON,
  95                .ulcon       = ULCON,
  96                .ufcon       = UFCON,
  97        },
  98};
  99
 100/* USB device UDC support */
 101
 102static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
 103        .pullup_pin = S3C2410_GPC(5),
 104};
 105
 106
 107/* LCD timing and setup */
 108
 109/*
 110 * This macro simplifies the table bellow
 111 */
 112#define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
 113                        _yres,margin_top,margin_bottom,vsync, refresh) \
 114        .width = _xres, \
 115        .xres = _xres, \
 116        .height = _yres, \
 117        .yres = _yres, \
 118        .left_margin    = margin_left,  \
 119        .right_margin   = margin_right, \
 120        .upper_margin   = margin_top,   \
 121        .lower_margin   = margin_bottom,        \
 122        .hsync_len      = hsync,        \
 123        .vsync_len      = vsync,        \
 124        .pixclock       = ((_clock*100000000000LL) /    \
 125                           ((refresh) * \
 126                           (hsync + margin_left + _xres + margin_right) * \
 127                           (vsync + margin_top + _yres + margin_bottom))), \
 128        .bpp            = 16,\
 129        .type           = (S3C2410_LCDCON1_TFT16BPP |\
 130                           S3C2410_LCDCON1_TFT)
 131
 132static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
 133        [0] = { /* mini2440 + 3.5" TFT + touchscreen */
 134                _LCD_DECLARE(
 135                        7,                      /* The 3.5 is quite fast */
 136                        240, 21, 38, 6,         /* x timing */
 137                        320, 4, 4, 2,           /* y timing */
 138                        60),                    /* refresh rate */
 139                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 140                                   S3C2410_LCDCON5_INVVLINE |
 141                                   S3C2410_LCDCON5_INVVFRAME |
 142                                   S3C2410_LCDCON5_INVVDEN |
 143                                   S3C2410_LCDCON5_PWREN),
 144        },
 145        [1] = { /* mini2440 + 7" TFT + touchscreen */
 146                _LCD_DECLARE(
 147                        10,                     /* the 7" runs slower */
 148                        800, 40, 40, 48,        /* x timing */
 149                        480, 29, 3, 3,          /* y timing */
 150                        50),                    /* refresh rate */
 151                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 152                                   S3C2410_LCDCON5_INVVLINE |
 153                                   S3C2410_LCDCON5_INVVFRAME |
 154                                   S3C2410_LCDCON5_PWREN),
 155        },
 156        /* The VGA shield can outout at several resolutions. All share 
 157         * the same timings, however, anything smaller than 1024x768
 158         * will only be displayed in the top left corner of a 1024x768
 159         * XGA output unless you add optional dip switches to the shield.
 160         * Therefore timings for other resolutions have been omitted here.
 161         */
 162        [2] = {
 163                _LCD_DECLARE(
 164                        10,
 165                        1024, 1, 2, 2,          /* y timing */
 166                        768, 200, 16, 16,       /* x timing */
 167                        24),    /* refresh rate, maximum stable,
 168                                 tested with the FPGA shield */
 169                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 170                                   S3C2410_LCDCON5_HWSWP),
 171        },
 172        /* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/
 173        [3] = {
 174                _LCD_DECLARE(
 175                        /* clock */
 176                        7,
 177                        /* xres, margin_right, margin_left, hsync */
 178                        320, 68, 66, 4,
 179                        /* yres, margin_top, margin_bottom, vsync */
 180                        240, 4, 4, 9,
 181                        /* refresh rate */
 182                        60),
 183                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 184                                   S3C2410_LCDCON5_INVVDEN |
 185                                   S3C2410_LCDCON5_INVVFRAME |
 186                                   S3C2410_LCDCON5_INVVLINE |
 187                                   S3C2410_LCDCON5_INVVCLK |
 188                                   S3C2410_LCDCON5_HWSWP),
 189        },
 190};
 191
 192/* todo - put into gpio header */
 193
 194#define S3C2410_GPCCON_MASK(x)  (3 << ((x) * 2))
 195#define S3C2410_GPDCON_MASK(x)  (3 << ((x) * 2))
 196
 197static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
 198        .displays        = &mini2440_lcd_cfg[0], /* not constant! see init */
 199        .num_displays    = 1,
 200        .default_display = 0,
 201
 202        /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
 203         * and disable the pull down resistors on pins we are using for LCD
 204         * data. */
 205
 206        .gpcup          = (0xf << 1) | (0x3f << 10),
 207
 208        .gpccon         = (S3C2410_GPC1_VCLK   | S3C2410_GPC2_VLINE |
 209                           S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
 210                           S3C2410_GPC10_VD2   | S3C2410_GPC11_VD3 |
 211                           S3C2410_GPC12_VD4   | S3C2410_GPC13_VD5 |
 212                           S3C2410_GPC14_VD6   | S3C2410_GPC15_VD7),
 213
 214        .gpccon_mask    = (S3C2410_GPCCON_MASK(1)  | S3C2410_GPCCON_MASK(2)  |
 215                           S3C2410_GPCCON_MASK(3)  | S3C2410_GPCCON_MASK(4)  |
 216                           S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
 217                           S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
 218                           S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
 219
 220        .gpdup          = (0x3f << 2) | (0x3f << 10),
 221
 222        .gpdcon         = (S3C2410_GPD2_VD10  | S3C2410_GPD3_VD11 |
 223                           S3C2410_GPD4_VD12  | S3C2410_GPD5_VD13 |
 224                           S3C2410_GPD6_VD14  | S3C2410_GPD7_VD15 |
 225                           S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
 226                           S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
 227                           S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),
 228
 229        .gpdcon_mask    = (S3C2410_GPDCON_MASK(2)  | S3C2410_GPDCON_MASK(3) |
 230                           S3C2410_GPDCON_MASK(4)  | S3C2410_GPDCON_MASK(5) |
 231                           S3C2410_GPDCON_MASK(6)  | S3C2410_GPDCON_MASK(7) |
 232                           S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
 233                           S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
 234                           S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
 235};
 236
 237/* MMC/SD  */
 238
 239static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
 240   .gpio_detect   = S3C2410_GPG(8),
 241   .gpio_wprotect = S3C2410_GPH(8),
 242   .set_power     = NULL,
 243   .ocr_avail     = MMC_VDD_32_33|MMC_VDD_33_34,
 244};
 245
 246/* NAND Flash on MINI2440 board */
 247
 248static struct mtd_partition mini2440_default_nand_part[] __initdata = {
 249        [0] = {
 250                .name   = "u-boot",
 251                .size   = SZ_256K,
 252                .offset = 0,
 253        },
 254        [1] = {
 255                .name   = "u-boot-env",
 256                .size   = SZ_128K,
 257                .offset = SZ_256K,
 258        },
 259        [2] = {
 260                .name   = "kernel",
 261                /* 5 megabytes, for a kernel with no modules
 262                 * or a uImage with a ramdisk attached */
 263                .size   = 0x00500000,
 264                .offset = SZ_256K + SZ_128K,
 265        },
 266        [3] = {
 267                .name   = "root",
 268                .offset = SZ_256K + SZ_128K + 0x00500000,
 269                .size   = MTDPART_SIZ_FULL,
 270        },
 271};
 272
 273static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
 274        [0] = {
 275                .name           = "nand",
 276                .nr_chips       = 1,
 277                .nr_partitions  = ARRAY_SIZE(mini2440_default_nand_part),
 278                .partitions     = mini2440_default_nand_part,
 279                .flash_bbt      = 1, /* we use u-boot to create a BBT */
 280        },
 281};
 282
 283static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
 284        .tacls          = 0,
 285        .twrph0         = 25,
 286        .twrph1         = 15,
 287        .nr_sets        = ARRAY_SIZE(mini2440_nand_sets),
 288        .sets           = mini2440_nand_sets,
 289        .ignore_unset_ecc = 1,
 290};
 291
 292/* DM9000AEP 10/100 ethernet controller */
 293
 294static struct resource mini2440_dm9k_resource[] = {
 295        [0] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE, 4),
 296        [1] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE + 4, 4),
 297        [2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ \
 298                                                | IORESOURCE_IRQ_HIGHEDGE),
 299};
 300
 301/*
 302 * The DM9000 has no eeprom, and it's MAC address is set by
 303 * the bootloader before starting the kernel.
 304 */
 305static struct dm9000_plat_data mini2440_dm9k_pdata = {
 306        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 307};
 308
 309static struct platform_device mini2440_device_eth = {
 310        .name           = "dm9000",
 311        .id             = -1,
 312        .num_resources  = ARRAY_SIZE(mini2440_dm9k_resource),
 313        .resource       = mini2440_dm9k_resource,
 314        .dev            = {
 315                .platform_data  = &mini2440_dm9k_pdata,
 316        },
 317};
 318
 319/*  CON5
 320 *      +--+     /-----\
 321 *      |  |    |       |
 322 *      |  |    |  BAT  |
 323 *      |  |     \_____/
 324 *      |  |
 325 *      |  |  +----+  +----+
 326 *      |  |  | K5 |  | K1 |
 327 *      |  |  +----+  +----+
 328 *      |  |  +----+  +----+
 329 *      |  |  | K4 |  | K2 |
 330 *      |  |  +----+  +----+
 331 *      |  |  +----+  +----+
 332 *      |  |  | K6 |  | K3 |
 333 *      |  |  +----+  +----+
 334 *        .....
 335 */
 336static struct gpio_keys_button mini2440_buttons[] = {
 337        {
 338                .gpio           = S3C2410_GPG(0),               /* K1 */
 339                .code           = KEY_F1,
 340                .desc           = "Button 1",
 341                .active_low     = 1,
 342        },
 343        {
 344                .gpio           = S3C2410_GPG(3),               /* K2 */
 345                .code           = KEY_F2,
 346                .desc           = "Button 2",
 347                .active_low     = 1,
 348        },
 349        {
 350                .gpio           = S3C2410_GPG(5),               /* K3 */
 351                .code           = KEY_F3,
 352                .desc           = "Button 3",
 353                .active_low     = 1,
 354        },
 355        {
 356                .gpio           = S3C2410_GPG(6),               /* K4 */
 357                .code           = KEY_POWER,
 358                .desc           = "Power",
 359                .active_low     = 1,
 360        },
 361        {
 362                .gpio           = S3C2410_GPG(7),               /* K5 */
 363                .code           = KEY_F5,
 364                .desc           = "Button 5",
 365                .active_low     = 1,
 366        },
 367#if 0
 368        /* this pin is also known as TCLK1 and seems to already
 369         * marked as "in use" somehow in the kernel -- possibly wrongly */
 370        {
 371                .gpio           = S3C2410_GPG(11),      /* K6 */
 372                .code           = KEY_F6,
 373                .desc           = "Button 6",
 374                .active_low     = 1,
 375        },
 376#endif
 377};
 378
 379static struct gpio_keys_platform_data mini2440_button_data = {
 380        .buttons        = mini2440_buttons,
 381        .nbuttons       = ARRAY_SIZE(mini2440_buttons),
 382};
 383
 384static struct platform_device mini2440_button_device = {
 385        .name           = "gpio-keys",
 386        .id             = -1,
 387        .dev            = {
 388                .platform_data  = &mini2440_button_data,
 389        }
 390};
 391
 392/* LEDS */
 393
 394static struct s3c24xx_led_platdata mini2440_led1_pdata = {
 395        .name           = "led1",
 396        .gpio           = S3C2410_GPB(5),
 397        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 398        .def_trigger    = "heartbeat",
 399};
 400
 401static struct s3c24xx_led_platdata mini2440_led2_pdata = {
 402        .name           = "led2",
 403        .gpio           = S3C2410_GPB(6),
 404        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 405        .def_trigger    = "nand-disk",
 406};
 407
 408static struct s3c24xx_led_platdata mini2440_led3_pdata = {
 409        .name           = "led3",
 410        .gpio           = S3C2410_GPB(7),
 411        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 412        .def_trigger    = "mmc0",
 413};
 414
 415static struct s3c24xx_led_platdata mini2440_led4_pdata = {
 416        .name           = "led4",
 417        .gpio           = S3C2410_GPB(8),
 418        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 419        .def_trigger    = "",
 420};
 421
 422static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = {
 423        .name           = "backlight",
 424        .gpio           = S3C2410_GPG(4),
 425        .def_trigger    = "backlight",
 426};
 427
 428static struct platform_device mini2440_led1 = {
 429        .name           = "s3c24xx_led",
 430        .id             = 1,
 431        .dev            = {
 432                .platform_data  = &mini2440_led1_pdata,
 433        },
 434};
 435
 436static struct platform_device mini2440_led2 = {
 437        .name           = "s3c24xx_led",
 438        .id             = 2,
 439        .dev            = {
 440                .platform_data  = &mini2440_led2_pdata,
 441        },
 442};
 443
 444static struct platform_device mini2440_led3 = {
 445        .name           = "s3c24xx_led",
 446        .id             = 3,
 447        .dev            = {
 448                .platform_data  = &mini2440_led3_pdata,
 449        },
 450};
 451
 452static struct platform_device mini2440_led4 = {
 453        .name           = "s3c24xx_led",
 454        .id             = 4,
 455        .dev            = {
 456                .platform_data  = &mini2440_led4_pdata,
 457        },
 458};
 459
 460static struct platform_device mini2440_led_backlight = {
 461        .name           = "s3c24xx_led",
 462        .id             = 5,
 463        .dev            = {
 464                .platform_data  = &mini2440_led_backlight_pdata,
 465        },
 466};
 467
 468/* AUDIO */
 469
 470static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = {
 471        .l3_clk = S3C2410_GPB(4),
 472        .l3_mode = S3C2410_GPB(2),
 473        .l3_data = S3C2410_GPB(3),
 474        .model = UDA134X_UDA1341
 475};
 476
 477static struct platform_device mini2440_audio = {
 478        .name           = "s3c24xx_uda134x",
 479        .id             = 0,
 480        .dev            = {
 481                .platform_data  = &mini2440_audio_pins,
 482        },
 483};
 484
 485/*
 486 * I2C devices
 487 */
 488static struct at24_platform_data at24c08 = {
 489        .byte_len       = SZ_8K / 8,
 490        .page_size      = 16,
 491};
 492
 493static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
 494        {
 495                I2C_BOARD_INFO("24c08", 0x50),
 496                .platform_data = &at24c08,
 497        },
 498};
 499
 500static struct platform_device uda1340_codec = {
 501                .name = "uda134x-codec",
 502                .id = -1,
 503};
 504
 505static struct platform_device *mini2440_devices[] __initdata = {
 506        &s3c_device_ohci,
 507        &s3c_device_wdt,
 508        &s3c_device_i2c0,
 509        &s3c_device_rtc,
 510        &s3c_device_usbgadget,
 511        &mini2440_device_eth,
 512        &mini2440_led1,
 513        &mini2440_led2,
 514        &mini2440_led3,
 515        &mini2440_led4,
 516        &mini2440_button_device,
 517        &s3c_device_nand,
 518        &s3c_device_sdi,
 519        &s3c_device_iis,
 520        &uda1340_codec,
 521        &mini2440_audio,
 522};
 523
 524static void __init mini2440_map_io(void)
 525{
 526        s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
 527        s3c24xx_init_clocks(12000000);
 528        s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
 529        samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 530}
 531
 532/*
 533 * mini2440_features string
 534 *
 535 * t = Touchscreen present
 536 * b = backlight control
 537 * c = camera [TODO]
 538 * 0-9 LCD configuration
 539 *
 540 */
 541static char mini2440_features_str[12] __initdata = "0tb";
 542
 543static int __init mini2440_features_setup(char *str)
 544{
 545        if (str)
 546                strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
 547        return 1;
 548}
 549
 550__setup("mini2440=", mini2440_features_setup);
 551
 552#define FEATURE_SCREEN (1 << 0)
 553#define FEATURE_BACKLIGHT (1 << 1)
 554#define FEATURE_TOUCH (1 << 2)
 555#define FEATURE_CAMERA (1 << 3)
 556
 557struct mini2440_features_t {
 558        int count;
 559        int done;
 560        int lcd_index;
 561        struct platform_device *optional[8];
 562};
 563
 564static void __init mini2440_parse_features(
 565                struct mini2440_features_t * features,
 566                const char * features_str )
 567{
 568        const char * fp = features_str;
 569
 570        features->count = 0;
 571        features->done = 0;
 572        features->lcd_index = -1;
 573
 574        while (*fp) {
 575                char f = *fp++;
 576
 577                switch (f) {
 578                case '0'...'9': /* tft screen */
 579                        if (features->done & FEATURE_SCREEN) {
 580                                printk(KERN_INFO "MINI2440: '%c' ignored, "
 581                                        "screen type already set\n", f);
 582                        } else {
 583                                int li = f - '0';
 584                                if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
 585                                        printk(KERN_INFO "MINI2440: "
 586                                                "'%c' out of range LCD mode\n", f);
 587                                else {
 588                                        features->optional[features->count++] =
 589                                                        &s3c_device_lcd;
 590                                        features->lcd_index = li;
 591                                }
 592                        }
 593                        features->done |= FEATURE_SCREEN;
 594                        break;
 595                case 'b':
 596                        if (features->done & FEATURE_BACKLIGHT)
 597                                printk(KERN_INFO "MINI2440: '%c' ignored, "
 598                                        "backlight already set\n", f);
 599                        else {
 600                                features->optional[features->count++] =
 601                                                &mini2440_led_backlight;
 602                        }
 603                        features->done |= FEATURE_BACKLIGHT;
 604                        break;
 605                case 't':
 606                        printk(KERN_INFO "MINI2440: '%c' ignored, "
 607                                "touchscreen not compiled in\n", f);
 608                        break;
 609                case 'c':
 610                        if (features->done & FEATURE_CAMERA)
 611                                printk(KERN_INFO "MINI2440: '%c' ignored, "
 612                                        "camera already registered\n", f);
 613                        else
 614                                features->optional[features->count++] =
 615                                        &s3c_device_camif;
 616                        features->done |= FEATURE_CAMERA;
 617                        break;
 618                }
 619        }
 620}
 621
 622static void __init mini2440_init(void)
 623{
 624        struct mini2440_features_t features = { 0 };
 625        int i;
 626
 627        printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
 628                        mini2440_features_str);
 629
 630        /* Parse the feature string */
 631        mini2440_parse_features(&features, mini2440_features_str);
 632
 633        /* turn LCD on */
 634        s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
 635
 636        /* Turn the backlight early on */
 637        WARN_ON(gpio_request_one(S3C2410_GPG(4), GPIOF_OUT_INIT_HIGH, NULL));
 638        gpio_free(S3C2410_GPG(4));
 639
 640        /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
 641        gpio_request_one(S3C2410_GPB(1), GPIOF_IN, NULL);
 642        s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP);
 643        gpio_free(S3C2410_GPB(1));
 644
 645        /* mark the key as input, without pullups (there is one on the board) */
 646        for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
 647                s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP);
 648                s3c_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT);
 649        }
 650        if (features.lcd_index != -1) {
 651                int li;
 652
 653                mini2440_fb_info.displays =
 654                        &mini2440_lcd_cfg[features.lcd_index];
 655
 656                printk(KERN_INFO "MINI2440: LCD");
 657                for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
 658                        if (li == features.lcd_index)
 659                                printk(" [%d:%dx%d]", li,
 660                                        mini2440_lcd_cfg[li].width,
 661                                        mini2440_lcd_cfg[li].height);
 662                        else
 663                                printk(" %d:%dx%d", li,
 664                                        mini2440_lcd_cfg[li].width,
 665                                        mini2440_lcd_cfg[li].height);
 666                printk("\n");
 667                s3c24xx_fb_set_platdata(&mini2440_fb_info);
 668        }
 669
 670        s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
 671        s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
 672        s3c_nand_set_platdata(&mini2440_nand_info);
 673        s3c_i2c0_set_platdata(NULL);
 674
 675        i2c_register_board_info(0, mini2440_i2c_devs,
 676                                ARRAY_SIZE(mini2440_i2c_devs));
 677
 678        platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
 679
 680        if (features.count)     /* the optional features */
 681                platform_add_devices(features.optional, features.count);
 682
 683}
 684
 685
 686MACHINE_START(MINI2440, "MINI2440")
 687        /* Maintainer: Michel Pollet <buserror@gmail.com> */
 688        .atag_offset    = 0x100,
 689        .map_io         = mini2440_map_io,
 690        .init_machine   = mini2440_init,
 691        .init_irq       = s3c2440_init_irq,
 692        .init_time      = samsung_timer_init,
 693        .restart        = s3c244x_restart,
 694MACHINE_END
 695