arch/arm/mach-omap1/board-osk.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-osk.c
   3  *
   4  * Board specific init for OMAP5912 OSK
   5  *
   6  * Written by Dirk Behme <dirk.behme@de.bosch.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2 of the License, or (at your
  11  * option) any later version.
  12  *
  13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  14  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  15  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
  16  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  19  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  *
  24  * You should have received a copy of the  GNU General Public License along
  25  * with this program; if not, write  to the Free Software Foundation, Inc.,
  26  * 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #include <linux/kernel.h>
  30 #include <linux/init.h>
  31 #include <linux/platform_device.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/irq.h>
  34 #include <linux/i2c.h>
  35 #include <linux/leds.h>
  36
  37 #include <linux/mtd/mtd.h>
  38 #include <linux/mtd/partitions.h>
  39
  40 #include <linux/i2c/tps65010.h>
  41
  42 #include <mach/hardware.h>
  43 #include <asm/gpio.h>
  44
  45 #include <asm/mach-types.h>
  46 #include <asm/mach/arch.h>
  47 #include <asm/mach/map.h>
  48 #include <asm/mach/flash.h>
  49
  50 #include <mach/usb.h>
  51 #include <mach/mux.h>
  52 #include <mach/tc.h>
  53 #include <mach/common.h>
  54
  55 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
  56 #define OMAP_OSK_ETHR_START             0x04800300
  57
  58 /* TPS65010 has four GPIOs.  nPG and LED2 can be treated like GPIOs with
  59  * alternate pin configurations for hardware-controlled blinking.
  60  */
  61 #define OSK_TPS_GPIO_BASE               (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
  62 #       define OSK_TPS_GPIO_USB_PWR_EN  (OSK_TPS_GPIO_BASE + 0)
  63 #       define OSK_TPS_GPIO_LED_D3      (OSK_TPS_GPIO_BASE + 1)
  64 #       define OSK_TPS_GPIO_LAN_RESET   (OSK_TPS_GPIO_BASE + 2)
  65 #       define OSK_TPS_GPIO_DSP_PWR_EN  (OSK_TPS_GPIO_BASE + 3)
  66 #       define OSK_TPS_GPIO_LED_D9      (OSK_TPS_GPIO_BASE + 4)
  67 #       define OSK_TPS_GPIO_LED_D2      (OSK_TPS_GPIO_BASE + 5)
  68
  69 static struct mtd_partition osk_partitions[] = {
  70         /* bootloader (U-Boot, etc) in first sector */
  71         {
  72               .name             = "bootloader",
  73               .offset           = 0,
  74               .size             = SZ_128K,
  75               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  76         },
  77         /* bootloader params in the next sector */
  78         {
  79               .name             = "params",
  80               .offset           = MTDPART_OFS_APPEND,
  81               .size             = SZ_128K,
  82               .mask_flags       = 0,
  83         }, {
  84               .name             = "kernel",
  85               .offset           = MTDPART_OFS_APPEND,
  86               .size             = SZ_2M,
  87               .mask_flags       = 0
  88         }, {
  89               .name             = "filesystem",
  90               .offset           = MTDPART_OFS_APPEND,
  91               .size             = MTDPART_SIZ_FULL,
  92               .mask_flags       = 0
  93         }
  94 };
  95
  96 static struct flash_platform_data osk_flash_data = {
  97         .map_name       = "cfi_probe",
  98         .width          = 2,
  99         .parts          = osk_partitions,
 100         .nr_parts       = ARRAY_SIZE(osk_partitions),
 101 };
 102
 103 static struct resource osk_flash_resource = {
 104         /* this is on CS3, wherever it's mapped */
 105         .flags          = IORESOURCE_MEM,
 106 };
 107
 108 static struct platform_device osk5912_flash_device = {
 109         .name           = "omapflash",
 110         .id             = 0,
 111         .dev            = {
 112                 .platform_data  = &osk_flash_data,
 113         },
 114         .num_resources  = 1,
 115         .resource       = &osk_flash_resource,
 116 };
 117
 118 static struct resource osk5912_smc91x_resources[] = {
 119         [0] = {
 120                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
 121                 .end    = OMAP_OSK_ETHR_START + 0xf,
 122                 .flags  = IORESOURCE_MEM,
 123         },
 124         [1] = {
 125                 .start  = OMAP_GPIO_IRQ(0),
 126                 .end    = OMAP_GPIO_IRQ(0),
 127                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 128         },
 129 };
 130
 131 static struct platform_device osk5912_smc91x_device = {
 132         .name           = "smc91x",
 133         .id             = -1,
 134         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
 135         .resource       = osk5912_smc91x_resources,
 136 };
 137
 138 static struct resource osk5912_cf_resources[] = {
 139         [0] = {
 140                 .start  = OMAP_GPIO_IRQ(62),
 141                 .end    = OMAP_GPIO_IRQ(62),
 142                 .flags  = IORESOURCE_IRQ,
 143         },
 144 };
 145
 146 static struct platform_device osk5912_cf_device = {
 147         .name           = "omap_cf",
 148         .id             = -1,
 149         .dev = {
 150                 .platform_data  = (void *) 2 /* CS2 */,
 151         },
 152         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
 153         .resource       = osk5912_cf_resources,
 154 };
 155
 156 static struct platform_device *osk5912_devices[] __initdata = {
 157         &osk5912_flash_device,
 158         &osk5912_smc91x_device,
 159         &osk5912_cf_device,
 160 };
 161
 162 static struct gpio_led tps_leds[] = {
 163         /* NOTE:  D9 and D2 have hardware blink support.
 164          * Also, D9 requires non-battery power.
 165          */
 166         { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
 167                         .default_trigger = "ide-disk", },
 168         { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
 169         { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
 170                         .default_trigger = "heartbeat", },
 171 };
 172
 173 static struct gpio_led_platform_data tps_leds_data = {
 174         .num_leds       = 3,
 175         .leds           = tps_leds,
 176 };
 177
 178 static struct platform_device osk5912_tps_leds = {
 179         .name                   = "leds-gpio",
 180         .id                     = 0,
 181         .dev.platform_data      = &tps_leds_data,
 182 };
 183
 184 static int osk_tps_setup(struct i2c_client *client, void *context)
 185 {
 186         /* Set GPIO 1 HIGH to disable VBUS power supply;
 187          * OHCI driver powers it up/down as needed.
 188          */
 189         gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
 190         gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
 191
 192         /* Set GPIO 2 high so LED D3 is off by default */
 193         tps65010_set_gpio_out_value(GPIO2, HIGH);
 194
 195         /* Set GPIO 3 low to take ethernet out of reset */
 196         gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
 197         gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
 198
 199         /* GPIO4 is VDD_DSP */
 200         gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
 201         gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
 202         /* REVISIT if DSP support isn't configured, power it off ... */
 203
 204         /* Let LED1 (D9) blink; leds-gpio may override it */
 205         tps65010_set_led(LED1, BLINK);
 206
 207         /* Set LED2 off by default */
 208         tps65010_set_led(LED2, OFF);
 209
 210         /* Enable LOW_PWR handshake */
 211         tps65010_set_low_pwr(ON);
 212
 213         /* Switch VLDO2 to 3.0V for AIC23 */
 214         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
 215                         | TPS_LDO1_ENABLE);
 216
 217         /* register these three LEDs */
 218         osk5912_tps_leds.dev.parent = &client->dev;
 219         platform_device_register(&osk5912_tps_leds);
 220
 221         return 0;
 222 }
 223
 224 static struct tps65010_board tps_board = {
 225         .base           = OSK_TPS_GPIO_BASE,
 226         .outmask        = 0x0f,
 227         .setup          = osk_tps_setup,
 228 };
 229
 230 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
 231         {
 232                 I2C_BOARD_INFO("tps65010", 0x48),
 233                 .irq            = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
 234                 .platform_data  = &tps_board,
 235
 236         },
 237         {
 238                 I2C_BOARD_INFO("tlv320aic23", 0x1B),
 239         },
 240         /* TODO when driver support is ready:
 241          *  - optionally on Mistral, ov9640 camera sensor at 0x30
 242          */
 243 };
 244
 245 static void __init osk_init_smc91x(void)
 246 {
 247         u32 l;
 248
 249         if ((gpio_request(0, "smc_irq")) < 0) {
 250                 printk("Error requesting gpio 0 for smc91x irq\n");
 251                 return;
 252         }
 253
 254         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
 255         l = omap_readl(EMIFS_CCS(1));
 256         l |= 0x3;
 257         omap_writel(l, EMIFS_CCS(1));
 258 }
 259
 260 static void __init osk_init_cf(void)
 261 {
 262         omap_cfg_reg(M7_1610_GPIO62);
 263         if ((gpio_request(62, "cf_irq")) < 0) {
 264                 printk("Error requesting gpio 62 for CF irq\n");
 265                 return;
 266         }
 267         /* the CF I/O IRQ is really active-low */
 268         set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
 269 }
 270
 271 static void __init osk_init_irq(void)
 272 {
 273         omap1_init_common_hw();
 274         omap_init_irq();
 275         omap_gpio_init();
 276         osk_init_smc91x();
 277         osk_init_cf();
 278 }
 279
 280 static struct omap_usb_config osk_usb_config __initdata = {
 281         /* has usb host connector (A) ... for development it can also
 282          * be used, with a NONSTANDARD gender-bending cable/dongle, as
 283          * a peripheral.
 284          */
 285 #ifdef  CONFIG_USB_GADGET_OMAP
 286         .register_dev   = 1,
 287         .hmc_mode       = 0,
 288 #else
 289         .register_host  = 1,
 290         .hmc_mode       = 16,
 291         .rwc            = 1,
 292 #endif
 293         .pins[0]        = 2,
 294 };
 295
 296 static struct omap_uart_config osk_uart_config __initdata = {
 297         .enabled_uarts = (1 << 0),
 298 };
 299
 300 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 301 static struct omap_lcd_config osk_lcd_config __initdata = {
 302         .ctrl_name      = "internal",
 303 };
 304 #endif
 305
 306 static struct omap_board_config_kernel osk_config[] __initdata = {
 307         { OMAP_TAG_UART,                &osk_uart_config },
 308 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 309         { OMAP_TAG_LCD,                 &osk_lcd_config },
 310 #endif
 311 };
 312
 313 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 314
 315 #include <linux/input.h>
 316 #include <linux/i2c/at24.h>
 317 #include <linux/spi/spi.h>
 318 #include <linux/spi/ads7846.h>
 319
 320 #include <mach/keypad.h>
 321
 322 static struct at24_platform_data at24c04 = {
 323         .byte_len       = SZ_4K / 8,
 324         .page_size      = 16,
 325 };
 326
 327 static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
 328         {
 329                 /* NOTE:  powered from LCD supply */
 330                 I2C_BOARD_INFO("24c04", 0x50),
 331                 .platform_data  = &at24c04,
 332         },
 333         /* TODO when driver support is ready:
 334          *  - optionally ov9640 camera sensor at 0x30
 335          */
 336 };
 337
 338 static const int osk_keymap[] = {
 339         /* KEY(col, row, code) */
 340         KEY(0, 0, KEY_F1),              /* SW4 */
 341         KEY(0, 3, KEY_UP),              /* (sw2/up) */
 342         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
 343         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
 344         KEY(2, 0, KEY_SPACE),           /* SW3 */
 345         KEY(2, 1, KEY_ESC),             /* SW6 */
 346         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
 347         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
 348         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
 349         0
 350 };
 351
 352 static struct omap_kp_platform_data osk_kp_data = {
 353         .rows           = 8,
 354         .cols           = 8,
 355         .keymap         = (int *) osk_keymap,
 356         .keymapsize     = ARRAY_SIZE(osk_keymap),
 357         .delay          = 9,
 358 };
 359
 360 static struct resource osk5912_kp_resources[] = {
 361         [0] = {
 362                 .start  = INT_KEYBOARD,
 363                 .end    = INT_KEYBOARD,
 364                 .flags  = IORESOURCE_IRQ,
 365         },
 366 };
 367
 368 static struct platform_device osk5912_kp_device = {
 369         .name           = "omap-keypad",
 370         .id             = -1,
 371         .dev            = {
 372                 .platform_data = &osk_kp_data,
 373         },
 374         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
 375         .resource       = osk5912_kp_resources,
 376 };
 377
 378 static struct omap_backlight_config mistral_bl_data = {
 379         .default_intensity      = 0xa0,
 380 };
 381
 382 static struct platform_device mistral_bl_device = {
 383         .name           = "omap-bl",
 384         .id             = -1,
 385         .dev            = {
 386                 .platform_data = &mistral_bl_data,
 387         },
 388 };
 389
 390 static struct platform_device osk5912_lcd_device = {
 391         .name           = "lcd_osk",
 392         .id             = -1,
 393 };
 394
 395 static struct platform_device *mistral_devices[] __initdata = {
 396         &osk5912_kp_device,
 397         &mistral_bl_device,
 398         &osk5912_lcd_device,
 399 };
 400
 401 static int mistral_get_pendown_state(void)
 402 {
 403         return !gpio_get_value(4);
 404 }
 405
 406 static const struct ads7846_platform_data mistral_ts_info = {
 407         .model                  = 7846,
 408         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 409         .x_plate_ohms           = 419,
 410         .y_plate_ohms           = 486,
 411         .get_pendown_state      = mistral_get_pendown_state,
 412 };
 413
 414 static struct spi_board_info __initdata mistral_boardinfo[] = { {
 415         /* MicroWire (bus 2) CS0 has an ads7846e */
 416         .modalias               = "ads7846",
 417         .platform_data          = &mistral_ts_info,
 418         .irq                    = OMAP_GPIO_IRQ(4),
 419         .max_speed_hz           = 120000 /* max sample rate at 3V */
 420                                         * 26 /* command + data + overhead */,
 421         .bus_num                = 2,
 422         .chip_select            = 0,
 423 } };
 424
 425 #ifdef  CONFIG_PM
 426 static irqreturn_t
 427 osk_mistral_wake_interrupt(int irq, void *ignored)
 428 {
 429         return IRQ_HANDLED;
 430 }
 431 #endif
 432
 433 static void __init osk_mistral_init(void)
 434 {
 435         /* NOTE:  we could actually tell if there's a Mistral board
 436          * attached, e.g. by trying to read something from the ads7846.
 437          * But this arch_init() code is too early for that, since we
 438          * can't talk to the ads or even the i2c eeprom.
 439          */
 440
 441         /* parallel camera interface */
 442         omap_cfg_reg(J15_1610_CAM_LCLK);
 443         omap_cfg_reg(J18_1610_CAM_D7);
 444         omap_cfg_reg(J19_1610_CAM_D6);
 445         omap_cfg_reg(J14_1610_CAM_D5);
 446         omap_cfg_reg(K18_1610_CAM_D4);
 447         omap_cfg_reg(K19_1610_CAM_D3);
 448         omap_cfg_reg(K15_1610_CAM_D2);
 449         omap_cfg_reg(K14_1610_CAM_D1);
 450         omap_cfg_reg(L19_1610_CAM_D0);
 451         omap_cfg_reg(L18_1610_CAM_VS);
 452         omap_cfg_reg(L15_1610_CAM_HS);
 453         omap_cfg_reg(M19_1610_CAM_RSTZ);
 454         omap_cfg_reg(Y15_1610_CAM_OUTCLK);
 455
 456         /* serial camera interface */
 457         omap_cfg_reg(H19_1610_CAM_EXCLK);
 458         omap_cfg_reg(W13_1610_CCP_CLKM);
 459         omap_cfg_reg(Y12_1610_CCP_CLKP);
 460         /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
 461         /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
 462         omap_cfg_reg(W14_1610_CCP_DATAP);
 463
 464         /* CAM_PWDN */
 465         if (gpio_request(11, "cam_pwdn") == 0) {
 466                 omap_cfg_reg(N20_1610_GPIO11);
 467                 gpio_direction_output(11, 0);
 468         } else
 469                 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
 470
 471
 472         /* omap_cfg_reg(P19_1610_GPIO6); */     /* BUSY */
 473         gpio_request(6, "ts_busy");
 474         gpio_direction_input(6);
 475
 476         omap_cfg_reg(P20_1610_GPIO4);   /* PENIRQ */
 477         gpio_request(4, "ts_int");
 478         gpio_direction_input(4);
 479         set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
 480
 481         spi_register_board_info(mistral_boardinfo,
 482                         ARRAY_SIZE(mistral_boardinfo));
 483
 484         /* the sideways button (SW1) is for use as a "wakeup" button
 485          *
 486          * NOTE:  The Mistral board has the wakeup button (SW1) wired
 487          * to the LCD 3.3V rail, which is powered down during suspend.
 488          * To allow this button to wake up the omap, work around this
 489          * HW bug by rewiring SW1 to use the main 3.3V rail.
 490          */
 491         omap_cfg_reg(N15_1610_MPUIO2);
 492         if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
 493                 int ret = 0;
 494                 int irq = gpio_to_irq(OMAP_MPUIO(2));
 495
 496                 gpio_direction_input(OMAP_MPUIO(2));
 497                 set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
 498 #ifdef  CONFIG_PM
 499                 /* share the IRQ in case someone wants to use the
 500                  * button for more than wakeup from system sleep.
 501                  */
 502                 ret = request_irq(irq,
 503                                 &osk_mistral_wake_interrupt,
 504                                 IRQF_SHARED, "mistral_wakeup",
 505                                 &osk_mistral_wake_interrupt);
 506                 if (ret != 0) {
 507                         gpio_free(OMAP_MPUIO(2));
 508                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
 509                                 ret);
 510                 } else
 511                         enable_irq_wake(irq);
 512 #endif
 513         } else
 514                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 515
 516         /* LCD:  backlight, and power; power controls other devices on the
 517          * board, like the touchscreen, EEPROM, and wakeup (!) switch.
 518          */
 519         omap_cfg_reg(PWL);
 520         if (gpio_request(2, "lcd_pwr") == 0)
 521                 gpio_direction_output(2, 1);
 522
 523         i2c_register_board_info(1, mistral_i2c_board_info,
 524                         ARRAY_SIZE(mistral_i2c_board_info));
 525
 526         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
 527 }
 528 #else
 529 static void __init osk_mistral_init(void) { }
 530 #endif
 531
 532 #define EMIFS_CS3_VAL   (0x88013141)
 533
 534 static void __init osk_init(void)
 535 {
 536         u32 l;
 537
 538         /* Workaround for wrong CS3 (NOR flash) timing
 539          * There are some U-Boot versions out there which configure
 540          * wrong CS3 memory timings. This mainly leads to CRC
 541          * or similar errors if you use NOR flash (e.g. with JFFS2)
 542          */
 543         l = omap_readl(EMIFS_CCS(3));
 544         if (l != EMIFS_CS3_VAL)
 545                 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
 546
 547         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
 548         osk_flash_resource.end += SZ_32M - 1;
 549         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
 550         omap_board_config = osk_config;
 551         omap_board_config_size = ARRAY_SIZE(osk_config);
 552
 553         l = omap_readl(USB_TRANSCEIVER_CTRL);
 554         l |= (3 << 1);
 555         omap_writel(l, USB_TRANSCEIVER_CTRL);
 556
 557         omap_usb_init(&osk_usb_config);
 558
 559         /* irq for tps65010 chip */
 560         /* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
 561         if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
 562                 gpio_direction_input(OMAP_MPUIO(1));
 563
 564         omap_serial_init();
 565         omap_register_i2c_bus(1, 400, osk_i2c_board_info,
 566                               ARRAY_SIZE(osk_i2c_board_info));
 567         osk_mistral_init();
 568 }
 569
 570 static void __init osk_map_io(void)
 571 {
 572         omap1_map_common_io();
 573 }
 574
 575 MACHINE_START(OMAP_OSK, "TI-OSK")
 576         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
 577         .phys_io        = 0xfff00000,
 578         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 579         .boot_params    = 0x10000100,
 580         .map_io         = osk_map_io,
 581         .init_irq       = osk_init_irq,
 582         .init_machine   = osk_init,
 583         .timer          = &omap_timer,
 584 MACHINE_END