arch/arm/mach-at91/board-sam9261ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9261ek.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2006 Atmel
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <linux/types.h>
  23 #include <linux/init.h>
  24 #include <linux/mm.h>
  25 #include <linux/module.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/spi/ads7846.h>
  29 #include <linux/spi/at73c213.h>
  30 #include <linux/clk.h>
  31 #include <linux/dm9000.h>
  32 #include <linux/fb.h>
  33 #include <linux/gpio_keys.h>
  34 #include <linux/input.h>
  35
  36 #include <video/atmel_lcdc.h>
  37
  38 #include <asm/setup.h>
  39 #include <asm/mach-types.h>
  40 #include <asm/irq.h>
  41
  42 #include <asm/mach/arch.h>
  43 #include <asm/mach/map.h>
  44 #include <asm/mach/irq.h>
  45
  46 #include <mach/hardware.h>
  47 #include <mach/board.h>
  48 #include <mach/gpio.h>
  49 #include <mach/at91sam9_smc.h>
  50 #include <mach/at91_shdwc.h>
  51
  52 #include "sam9_smc.h"
  53 #include "generic.h"
  54
  55
  56 static void __init ek_map_io(void)
  57 {
  58         /* Initialize processor: 18.432 MHz crystal */
  59         at91sam9261_initialize(18432000);
  60
  61         /* Setup the LEDs */
  62         at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
  63
  64         /* DBGU on ttyS0. (Rx & Tx only) */
  65         at91_register_uart(0, 0, 0);
  66
  67         /* set serial console to ttyS0 (ie, DBGU) */
  68         at91_set_serial_console(0);
  69 }
  70
  71 static void __init ek_init_irq(void)
  72 {
  73         at91sam9261_init_interrupts(NULL);
  74 }
  75
  76
  77 /*
  78  * DM9000 ethernet device
  79  */
  80 #if defined(CONFIG_DM9000)
  81 static struct resource dm9000_resource[] = {
  82         [0] = {
  83                 .start  = AT91_CHIPSELECT_2,
  84                 .end    = AT91_CHIPSELECT_2 + 3,
  85                 .flags  = IORESOURCE_MEM
  86         },
  87         [1] = {
  88                 .start  = AT91_CHIPSELECT_2 + 0x44,
  89                 .end    = AT91_CHIPSELECT_2 + 0xFF,
  90                 .flags  = IORESOURCE_MEM
  91         },
  92         [2] = {
  93                 .start  = AT91_PIN_PC11,
  94                 .end    = AT91_PIN_PC11,
  95                 .flags  = IORESOURCE_IRQ
  96                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
  97         }
  98 };
  99
 100 static struct dm9000_plat_data dm9000_platdata = {
 101         .flags          = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
 102 };
 103
 104 static struct platform_device dm9000_device = {
 105         .name           = "dm9000",
 106         .id             = 0,
 107         .num_resources  = ARRAY_SIZE(dm9000_resource),
 108         .resource       = dm9000_resource,
 109         .dev            = {
 110                 .platform_data  = &dm9000_platdata,
 111         }
 112 };
 113
 114 /*
 115  * SMC timings for the DM9000.
 116  * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
 117  */
 118 static struct sam9_smc_config __initdata dm9000_smc_config = {
 119         .ncs_read_setup         = 0,
 120         .nrd_setup              = 2,
 121         .ncs_write_setup        = 0,
 122         .nwe_setup              = 2,
 123
 124         .ncs_read_pulse         = 8,
 125         .nrd_pulse              = 4,
 126         .ncs_write_pulse        = 8,
 127         .nwe_pulse              = 4,
 128
 129         .read_cycle             = 16,
 130         .write_cycle            = 16,
 131
 132         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
 133         .tdf_cycles             = 1,
 134 };
 135
 136 static void __init ek_add_device_dm9000(void)
 137 {
 138         /* Configure chip-select 2 (DM9000) */
 139         sam9_smc_configure(2, &dm9000_smc_config);
 140
 141         /* Configure Reset signal as output */
 142         at91_set_gpio_output(AT91_PIN_PC10, 0);
 143
 144         /* Configure Interrupt pin as input, no pull-up */
 145         at91_set_gpio_input(AT91_PIN_PC11, 0);
 146
 147         platform_device_register(&dm9000_device);
 148 }
 149 #else
 150 static void __init ek_add_device_dm9000(void) {}
 151 #endif /* CONFIG_DM9000 */
 152
 153
 154 /*
 155  * USB Host Port
 156  */
 157 static struct at91_usbh_data __initdata ek_usbh_data = {
 158         .ports          = 2,
 159 };
 160
 161
 162 /*
 163  * USB Device Port
 164  */
 165 static struct at91_udc_data __initdata ek_udc_data = {
 166         .vbus_pin       = AT91_PIN_PB29,
 167         .pullup_pin     = 0,            /* pull-up driven by UDC */
 168 };
 169
 170
 171 /*
 172  * MCI (SD/MMC)
 173  */
 174 static struct at91_mmc_data __initdata ek_mmc_data = {
 175         .wire4          = 1,
 176 //      .det_pin        = ... not connected
 177 //      .wp_pin         = ... not connected
 178 //      .vcc_pin        = ... not connected
 179 };
 180
 181
 182 /*
 183  * NAND flash
 184  */
 185 static struct mtd_partition __initdata ek_nand_partition[] = {
 186         {
 187                 .name   = "Partition 1",
 188                 .offset = 0,
 189                 .size   = SZ_256K,
 190         },
 191         {
 192                 .name   = "Partition 2",
 193                 .offset = MTDPART_OFS_NXTBLK,
 194                 .size   = MTDPART_SIZ_FULL,
 195         },
 196 };
 197
 198 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 199 {
 200         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 201         return ek_nand_partition;
 202 }
 203
 204 static struct atmel_nand_data __initdata ek_nand_data = {
 205         .ale            = 22,
 206         .cle            = 21,
 207 //      .det_pin        = ... not connected
 208         .rdy_pin        = AT91_PIN_PC15,
 209         .enable_pin     = AT91_PIN_PC14,
 210         .partition_info = nand_partitions,
 211 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 212         .bus_width_16   = 1,
 213 #else
 214         .bus_width_16   = 0,
 215 #endif
 216 };
 217
 218 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 219         .ncs_read_setup         = 0,
 220         .nrd_setup              = 1,
 221         .ncs_write_setup        = 0,
 222         .nwe_setup              = 1,
 223
 224         .ncs_read_pulse         = 3,
 225         .nrd_pulse              = 3,
 226         .ncs_write_pulse        = 3,
 227         .nwe_pulse              = 3,
 228
 229         .read_cycle             = 5,
 230         .write_cycle            = 5,
 231
 232         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 233         .tdf_cycles             = 2,
 234 };
 235
 236 static void __init ek_add_device_nand(void)
 237 {
 238         /* setup bus-width (8 or 16) */
 239         if (ek_nand_data.bus_width_16)
 240                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 241         else
 242                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 243
 244         /* configure chip-select 3 (NAND) */
 245         sam9_smc_configure(3, &ek_nand_smc_config);
 246
 247         at91_add_device_nand(&ek_nand_data);
 248 }
 249
 250
 251 /*
 252  * ADS7846 Touchscreen
 253  */
 254 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 255
 256 static int ads7843_pendown_state(void)
 257 {
 258         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
 259 }
 260
 261 static struct ads7846_platform_data ads_info = {
 262         .model                  = 7843,
 263         .x_min                  = 150,
 264         .x_max                  = 3830,
 265         .y_min                  = 190,
 266         .y_max                  = 3830,
 267         .vref_delay_usecs       = 100,
 268         .x_plate_ohms           = 450,
 269         .y_plate_ohms           = 250,
 270         .pressure_max           = 15000,
 271         .debounce_max           = 1,
 272         .debounce_rep           = 0,
 273         .debounce_tol           = (~0),
 274         .get_pendown_state      = ads7843_pendown_state,
 275 };
 276
 277 static void __init ek_add_device_ts(void)
 278 {
 279         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
 280         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
 281 }
 282 #else
 283 static void __init ek_add_device_ts(void) {}
 284 #endif
 285
 286 /*
 287  * Audio
 288  */
 289 static struct at73c213_board_info at73c213_data = {
 290         .ssc_id         = 1,
 291 #if defined(CONFIG_MACH_AT91SAM9261EK)
 292         .shortname      = "AT91SAM9261-EK external DAC",
 293 #else
 294         .shortname      = "AT91SAM9G10-EK external DAC",
 295 #endif
 296 };
 297
 298 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 299 static void __init at73c213_set_clk(struct at73c213_board_info *info)
 300 {
 301         struct clk *pck2;
 302         struct clk *plla;
 303
 304         pck2 = clk_get(NULL, "pck2");
 305         plla = clk_get(NULL, "plla");
 306
 307         /* AT73C213 MCK Clock */
 308         at91_set_B_periph(AT91_PIN_PB31, 0);    /* PCK2 */
 309
 310         clk_set_parent(pck2, plla);
 311         clk_put(plla);
 312
 313         info->dac_clk = pck2;
 314 }
 315 #else
 316 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
 317 #endif
 318
 319 /*
 320  * SPI devices
 321  */
 322 static struct spi_board_info ek_spi_devices[] = {
 323         {       /* DataFlash chip */
 324                 .modalias       = "mtd_dataflash",
 325                 .chip_select    = 0,
 326                 .max_speed_hz   = 15 * 1000 * 1000,
 327                 .bus_num        = 0,
 328         },
 329 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 330         {
 331                 .modalias       = "ads7846",
 332                 .chip_select    = 2,
 333                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 334                 .bus_num        = 0,
 335                 .platform_data  = &ads_info,
 336                 .irq            = AT91SAM9261_ID_IRQ0,
 337                 .controller_data = (void *) AT91_PIN_PA28,      /* CS pin */
 338         },
 339 #endif
 340 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 341         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
 342                 .modalias       = "mtd_dataflash",
 343                 .chip_select    = 3,
 344                 .max_speed_hz   = 15 * 1000 * 1000,
 345                 .bus_num        = 0,
 346         },
 347 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 348         {       /* AT73C213 DAC */
 349                 .modalias       = "at73c213",
 350                 .chip_select    = 3,
 351                 .max_speed_hz   = 10 * 1000 * 1000,
 352                 .bus_num        = 0,
 353                 .mode           = SPI_MODE_1,
 354                 .platform_data  = &at73c213_data,
 355                 .controller_data = (void*) AT91_PIN_PA29,       /* default for CS3 is PA6, but it must be PA29 */
 356         },
 357 #endif
 358 };
 359
 360
 361 /*
 362  * LCD Controller
 363  */
 364 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 365
 366 #if defined(CONFIG_FB_ATMEL_STN)
 367
 368 /* STN */
 369 static struct fb_videomode at91_stn_modes[] = {
 370         {
 371                 .name           = "SP06Q002 @ 75",
 372                 .refresh        = 75,
 373                 .xres           = 320,          .yres           = 240,
 374                 .pixclock       = KHZ2PICOS(1440),
 375
 376                 .left_margin    = 1,            .right_margin   = 1,
 377                 .upper_margin   = 0,            .lower_margin   = 0,
 378                 .hsync_len      = 1,            .vsync_len      = 1,
 379
 380                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 381                 .vmode          = FB_VMODE_NONINTERLACED,
 382         },
 383 };
 384
 385 static struct fb_monspecs at91fb_default_stn_monspecs = {
 386         .manufacturer   = "HIT",
 387         .monitor        = "SP06Q002",
 388
 389         .modedb         = at91_stn_modes,
 390         .modedb_len     = ARRAY_SIZE(at91_stn_modes),
 391         .hfmin          = 15000,
 392         .hfmax          = 64000,
 393         .vfmin          = 50,
 394         .vfmax          = 150,
 395 };
 396
 397 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 398                                         | ATMEL_LCDC_DISTYPE_STNMONO \
 399                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
 400                                         | ATMEL_LCDC_IFWIDTH_4 \
 401                                         | ATMEL_LCDC_SCANMOD_SINGLE)
 402
 403 static void at91_lcdc_stn_power_control(int on)
 404 {
 405         /* backlight */
 406         if (on) {       /* power up */
 407                 at91_set_gpio_value(AT91_PIN_PC14, 0);
 408                 at91_set_gpio_value(AT91_PIN_PC15, 0);
 409         } else {        /* power down */
 410                 at91_set_gpio_value(AT91_PIN_PC14, 1);
 411                 at91_set_gpio_value(AT91_PIN_PC15, 1);
 412         }
 413 }
 414
 415 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 416         .default_bpp                    = 1,
 417         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 418         .default_lcdcon2                = AT91SAM9261_DEFAULT_STN_LCDCON2,
 419         .default_monspecs               = &at91fb_default_stn_monspecs,
 420         .atmel_lcdfb_power_control      = at91_lcdc_stn_power_control,
 421         .guard_time                     = 1,
 422 #if defined(CONFIG_MACH_AT91SAM9G10EK)
 423         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 424 #endif
 425 };
 426
 427 #else
 428
 429 /* TFT */
 430 static struct fb_videomode at91_tft_vga_modes[] = {
 431         {
 432                 .name           = "TX09D50VM1CCA @ 60",
 433                 .refresh        = 60,
 434                 .xres           = 240,          .yres           = 320,
 435                 .pixclock       = KHZ2PICOS(4965),
 436
 437                 .left_margin    = 1,            .right_margin   = 33,
 438                 .upper_margin   = 1,            .lower_margin   = 0,
 439                 .hsync_len      = 5,            .vsync_len      = 1,
 440
 441                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 442                 .vmode          = FB_VMODE_NONINTERLACED,
 443         },
 444 };
 445
 446 static struct fb_monspecs at91fb_default_tft_monspecs = {
 447         .manufacturer   = "HIT",
 448         .monitor        = "TX09D50VM1CCA",
 449
 450         .modedb         = at91_tft_vga_modes,
 451         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 452         .hfmin          = 15000,
 453         .hfmax          = 64000,
 454         .vfmin          = 50,
 455         .vfmax          = 150,
 456 };
 457
 458 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 459                                         | ATMEL_LCDC_DISTYPE_TFT    \
 460                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 461
 462 static void at91_lcdc_tft_power_control(int on)
 463 {
 464         if (on)
 465                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
 466         else
 467                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
 468 }
 469
 470 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 471         .lcdcon_is_backlight            = true,
 472         .default_bpp                    = 16,
 473         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 474         .default_lcdcon2                = AT91SAM9261_DEFAULT_TFT_LCDCON2,
 475         .default_monspecs               = &at91fb_default_tft_monspecs,
 476         .atmel_lcdfb_power_control      = at91_lcdc_tft_power_control,
 477         .guard_time                     = 1,
 478 #if defined(CONFIG_MACH_AT91SAM9G10EK)
 479         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 480 #endif
 481 };
 482 #endif
 483
 484 #else
 485 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 486 #endif
 487
 488
 489 /*
 490  * GPIO Buttons
 491  */
 492 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 493 static struct gpio_keys_button ek_buttons[] = {
 494         {
 495                 .gpio           = AT91_PIN_PA27,
 496                 .code           = BTN_0,
 497                 .desc           = "Button 0",
 498                 .active_low     = 1,
 499                 .wakeup         = 1,
 500         },
 501         {
 502                 .gpio           = AT91_PIN_PA26,
 503                 .code           = BTN_1,
 504                 .desc           = "Button 1",
 505                 .active_low     = 1,
 506                 .wakeup         = 1,
 507         },
 508         {
 509                 .gpio           = AT91_PIN_PA25,
 510                 .code           = BTN_2,
 511                 .desc           = "Button 2",
 512                 .active_low     = 1,
 513                 .wakeup         = 1,
 514         },
 515         {
 516                 .gpio           = AT91_PIN_PA24,
 517                 .code           = BTN_3,
 518                 .desc           = "Button 3",
 519                 .active_low     = 1,
 520                 .wakeup         = 1,
 521         }
 522 };
 523
 524 static struct gpio_keys_platform_data ek_button_data = {
 525         .buttons        = ek_buttons,
 526         .nbuttons       = ARRAY_SIZE(ek_buttons),
 527 };
 528
 529 static struct platform_device ek_button_device = {
 530         .name           = "gpio-keys",
 531         .id             = -1,
 532         .num_resources  = 0,
 533         .dev            = {
 534                 .platform_data  = &ek_button_data,
 535         }
 536 };
 537
 538 static void __init ek_add_device_buttons(void)
 539 {
 540         at91_set_gpio_input(AT91_PIN_PA27, 1);  /* btn0 */
 541         at91_set_deglitch(AT91_PIN_PA27, 1);
 542         at91_set_gpio_input(AT91_PIN_PA26, 1);  /* btn1 */
 543         at91_set_deglitch(AT91_PIN_PA26, 1);
 544         at91_set_gpio_input(AT91_PIN_PA25, 1);  /* btn2 */
 545         at91_set_deglitch(AT91_PIN_PA25, 1);
 546         at91_set_gpio_input(AT91_PIN_PA24, 1);  /* btn3 */
 547         at91_set_deglitch(AT91_PIN_PA24, 1);
 548
 549         platform_device_register(&ek_button_device);
 550 }
 551 #else
 552 static void __init ek_add_device_buttons(void) {}
 553 #endif
 554
 555 /*
 556  * LEDs
 557  */
 558 static struct gpio_led ek_leds[] = {
 559         {       /* "bottom" led, green, userled1 to be defined */
 560                 .name                   = "ds7",
 561                 .gpio                   = AT91_PIN_PA14,
 562                 .active_low             = 1,
 563                 .default_trigger        = "none",
 564         },
 565         {       /* "top" led, green, userled2 to be defined */
 566                 .name                   = "ds8",
 567                 .gpio                   = AT91_PIN_PA13,
 568                 .active_low             = 1,
 569                 .default_trigger        = "none",
 570         },
 571         {       /* "power" led, yellow */
 572                 .name                   = "ds1",
 573                 .gpio                   = AT91_PIN_PA23,
 574                 .default_trigger        = "heartbeat",
 575         }
 576 };
 577
 578 static void __init ek_board_init(void)
 579 {
 580         /* Serial */
 581         at91_add_device_serial();
 582         /* USB Host */
 583         at91_add_device_usbh(&ek_usbh_data);
 584         /* USB Device */
 585         at91_add_device_udc(&ek_udc_data);
 586         /* I2C */
 587         at91_add_device_i2c(NULL, 0);
 588         /* NAND */
 589         ek_add_device_nand();
 590         /* DM9000 ethernet */
 591         ek_add_device_dm9000();
 592
 593         /* spi0 and mmc/sd share the same PIO pins */
 594 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 595         /* SPI */
 596         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 597         /* Touchscreen */
 598         ek_add_device_ts();
 599         /* SSC (to AT73C213) */
 600         at73c213_set_clk(&at73c213_data);
 601         at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
 602 #else
 603         /* MMC */
 604         at91_add_device_mmc(0, &ek_mmc_data);
 605 #endif
 606         /* LCD Controller */
 607         at91_add_device_lcdc(&ek_lcdc_data);
 608         /* Push Buttons */
 609         ek_add_device_buttons();
 610         /* LEDs */
 611         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 612 }
 613
 614 #if defined(CONFIG_MACH_AT91SAM9261EK)
 615 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
 616 #else
 617 MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
 618 #endif
 619         /* Maintainer: Atmel */
 620         .phys_io        = AT91_BASE_SYS,
 621         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 622         .boot_params    = AT91_SDRAM_BASE + 0x100,
 623         .timer          = &at91sam926x_timer,
 624         .map_io         = ek_map_io,
 625         .init_irq       = ek_init_irq,
 626         .init_machine   = ek_board_init,
 627 MACHINE_END