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/gpio.h>
  24 #include <linux/init.h>
  25 #include <linux/mm.h>
  26 #include <linux/module.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/spi/ads7846.h>
  30 #include <linux/spi/at73c213.h>
  31 #include <linux/clk.h>
  32 #include <linux/dm9000.h>
  33 #include <linux/fb.h>
  34 #include <linux/gpio_keys.h>
  35 #include <linux/input.h>
  36
  37 #include <video/atmel_lcdc.h>
  38
  39 #include <asm/setup.h>
  40 #include <asm/mach-types.h>
  41 #include <asm/irq.h>
  42
  43 #include <asm/mach/arch.h>
  44 #include <asm/mach/map.h>
  45 #include <asm/mach/irq.h>
  46
  47 #include <mach/hardware.h>
  48 #include <mach/at91sam9_smc.h>
  49 #include <mach/system_rev.h>
  50
  51 #include "at91_aic.h"
  52 #include "at91_shdwc.h"
  53 #include "board.h"
  54 #include "sam9_smc.h"
  55 #include "generic.h"
  56
  57
  58 static void __init ek_init_early(void)
  59 {
  60         /* Initialize processor: 18.432 MHz crystal */
  61         at91_initialize(18432000);
  62 }
  63
  64 /*
  65  * DM9000 ethernet device
  66  */
  67 #if defined(CONFIG_DM9000)
  68 static struct resource dm9000_resource[] = {
  69         [0] = {
  70                 .start  = AT91_CHIPSELECT_2,
  71                 .end    = AT91_CHIPSELECT_2 + 3,
  72                 .flags  = IORESOURCE_MEM
  73         },
  74         [1] = {
  75                 .start  = AT91_CHIPSELECT_2 + 0x44,
  76                 .end    = AT91_CHIPSELECT_2 + 0xFF,
  77                 .flags  = IORESOURCE_MEM
  78         },
  79         [2] = {
  80                 .flags  = IORESOURCE_IRQ
  81                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
  82         }
  83 };
  84
  85 static struct dm9000_plat_data dm9000_platdata = {
  86         .flags          = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
  87 };
  88
  89 static struct platform_device dm9000_device = {
  90         .name           = "dm9000",
  91         .id             = 0,
  92         .num_resources  = ARRAY_SIZE(dm9000_resource),
  93         .resource       = dm9000_resource,
  94         .dev            = {
  95                 .platform_data  = &dm9000_platdata,
  96         }
  97 };
  98
  99 /*
 100  * SMC timings for the DM9000.
 101  * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
 102  */
 103 static struct sam9_smc_config __initdata dm9000_smc_config = {
 104         .ncs_read_setup         = 0,
 105         .nrd_setup              = 2,
 106         .ncs_write_setup        = 0,
 107         .nwe_setup              = 2,
 108
 109         .ncs_read_pulse         = 8,
 110         .nrd_pulse              = 4,
 111         .ncs_write_pulse        = 8,
 112         .nwe_pulse              = 4,
 113
 114         .read_cycle             = 16,
 115         .write_cycle            = 16,
 116
 117         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
 118         .tdf_cycles             = 1,
 119 };
 120
 121 static void __init ek_add_device_dm9000(void)
 122 {
 123         struct resource *r = &dm9000_resource[2];
 124
 125         /* Configure chip-select 2 (DM9000) */
 126         sam9_smc_configure(0, 2, &dm9000_smc_config);
 127
 128         /* Configure Reset signal as output */
 129         at91_set_gpio_output(AT91_PIN_PC10, 0);
 130
 131         /* Configure Interrupt pin as input, no pull-up */
 132         at91_set_gpio_input(AT91_PIN_PC11, 0);
 133
 134         r->start = r->end = gpio_to_irq(AT91_PIN_PC11);
 135         platform_device_register(&dm9000_device);
 136 }
 137 #else
 138 static void __init ek_add_device_dm9000(void) {}
 139 #endif /* CONFIG_DM9000 */
 140
 141
 142 /*
 143  * USB Host Port
 144  */
 145 static struct at91_usbh_data __initdata ek_usbh_data = {
 146         .ports          = 2,
 147         .vbus_pin       = {-EINVAL, -EINVAL},
 148         .overcurrent_pin= {-EINVAL, -EINVAL},
 149 };
 150
 151
 152 /*
 153  * USB Device Port
 154  */
 155 static struct at91_udc_data __initdata ek_udc_data = {
 156         .vbus_pin       = AT91_PIN_PB29,
 157         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
 158 };
 159
 160
 161 /*
 162  * NAND flash
 163  */
 164 static struct mtd_partition __initdata ek_nand_partition[] = {
 165         {
 166                 .name   = "Partition 1",
 167                 .offset = 0,
 168                 .size   = SZ_256K,
 169         },
 170         {
 171                 .name   = "Partition 2",
 172                 .offset = MTDPART_OFS_NXTBLK,
 173                 .size   = MTDPART_SIZ_FULL,
 174         },
 175 };
 176
 177 static struct atmel_nand_data __initdata ek_nand_data = {
 178         .ale            = 22,
 179         .cle            = 21,
 180         .det_pin        = -EINVAL,
 181         .rdy_pin        = AT91_PIN_PC15,
 182         .enable_pin     = AT91_PIN_PC14,
 183         .ecc_mode       = NAND_ECC_SOFT,
 184         .on_flash_bbt   = 1,
 185         .parts          = ek_nand_partition,
 186         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 187 };
 188
 189 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 190         .ncs_read_setup         = 0,
 191         .nrd_setup              = 1,
 192         .ncs_write_setup        = 0,
 193         .nwe_setup              = 1,
 194
 195         .ncs_read_pulse         = 3,
 196         .nrd_pulse              = 3,
 197         .ncs_write_pulse        = 3,
 198         .nwe_pulse              = 3,
 199
 200         .read_cycle             = 5,
 201         .write_cycle            = 5,
 202
 203         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 204         .tdf_cycles             = 2,
 205 };
 206
 207 static void __init ek_add_device_nand(void)
 208 {
 209         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 210         /* setup bus-width (8 or 16) */
 211         if (ek_nand_data.bus_width_16)
 212                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 213         else
 214                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 215
 216         /* configure chip-select 3 (NAND) */
 217         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 218
 219         at91_add_device_nand(&ek_nand_data);
 220 }
 221
 222 /*
 223  * SPI related devices
 224  */
 225 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 226
 227 /*
 228  * ADS7846 Touchscreen
 229  */
 230 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 231
 232 static int ads7843_pendown_state(void)
 233 {
 234         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
 235 }
 236
 237 static struct ads7846_platform_data ads_info = {
 238         .model                  = 7843,
 239         .x_min                  = 150,
 240         .x_max                  = 3830,
 241         .y_min                  = 190,
 242         .y_max                  = 3830,
 243         .vref_delay_usecs       = 100,
 244         .x_plate_ohms           = 450,
 245         .y_plate_ohms           = 250,
 246         .pressure_max           = 15000,
 247         .debounce_max           = 1,
 248         .debounce_rep           = 0,
 249         .debounce_tol           = (~0),
 250         .get_pendown_state      = ads7843_pendown_state,
 251 };
 252
 253 static void __init ek_add_device_ts(void)
 254 {
 255         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
 256         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
 257 }
 258 #else
 259 static void __init ek_add_device_ts(void) {}
 260 #endif
 261
 262 /*
 263  * Audio
 264  */
 265 static struct at73c213_board_info at73c213_data = {
 266         .ssc_id         = 1,
 267         .shortname      = "AT91SAM9261/9G10-EK external DAC",
 268 };
 269
 270 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 271 static void __init at73c213_set_clk(struct at73c213_board_info *info)
 272 {
 273         struct clk *pck2;
 274         struct clk *plla;
 275
 276         pck2 = clk_get(NULL, "pck2");
 277         plla = clk_get(NULL, "plla");
 278
 279         /* AT73C213 MCK Clock */
 280         at91_set_B_periph(AT91_PIN_PB31, 0);    /* PCK2 */
 281
 282         clk_set_parent(pck2, plla);
 283         clk_put(plla);
 284
 285         info->dac_clk = pck2;
 286 }
 287 #else
 288 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
 289 #endif
 290
 291 /*
 292  * SPI devices
 293  */
 294 static struct spi_board_info ek_spi_devices[] = {
 295         {       /* DataFlash chip */
 296                 .modalias       = "mtd_dataflash",
 297                 .chip_select    = 0,
 298                 .max_speed_hz   = 15 * 1000 * 1000,
 299                 .bus_num        = 0,
 300         },
 301 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 302         {
 303                 .modalias       = "ads7846",
 304                 .chip_select    = 2,
 305                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 306                 .bus_num        = 0,
 307                 .platform_data  = &ads_info,
 308                 .irq            = NR_IRQS_LEGACY + AT91SAM9261_ID_IRQ0,
 309                 .controller_data = (void *) AT91_PIN_PA28,      /* CS pin */
 310         },
 311 #endif
 312 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 313         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
 314                 .modalias       = "mtd_dataflash",
 315                 .chip_select    = 3,
 316                 .max_speed_hz   = 15 * 1000 * 1000,
 317                 .bus_num        = 0,
 318         },
 319 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 320         {       /* AT73C213 DAC */
 321                 .modalias       = "at73c213",
 322                 .chip_select    = 3,
 323                 .max_speed_hz   = 10 * 1000 * 1000,
 324                 .bus_num        = 0,
 325                 .mode           = SPI_MODE_1,
 326                 .platform_data  = &at73c213_data,
 327                 .controller_data = (void*) AT91_PIN_PA29,       /* default for CS3 is PA6, but it must be PA29 */
 328         },
 329 #endif
 330 };
 331
 332 #else /* CONFIG_SPI_ATMEL_* */
 333 /* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
 334
 335 /*
 336  * MCI (SD/MMC)
 337  * det_pin, wp_pin and vcc_pin are not connected
 338  */
 339 static struct mci_platform_data __initdata mci0_data = {
 340         .slot[0] = {
 341                 .bus_width      = 4,
 342                 .detect_pin     = -EINVAL,
 343                 .wp_pin         = -EINVAL,
 344         },
 345 };
 346
 347 #endif /* CONFIG_SPI_ATMEL_* */
 348
 349
 350 /*
 351  * LCD Controller
 352  */
 353 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 354
 355 #if defined(CONFIG_FB_ATMEL_STN)
 356
 357 /* STN */
 358 static struct fb_videomode at91_stn_modes[] = {
 359         {
 360                 .name           = "SP06Q002 @ 75",
 361                 .refresh        = 75,
 362                 .xres           = 320,          .yres           = 240,
 363                 .pixclock       = KHZ2PICOS(1440),
 364
 365                 .left_margin    = 1,            .right_margin   = 1,
 366                 .upper_margin   = 0,            .lower_margin   = 0,
 367                 .hsync_len      = 1,            .vsync_len      = 1,
 368
 369                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 370                 .vmode          = FB_VMODE_NONINTERLACED,
 371         },
 372 };
 373
 374 static struct fb_monspecs at91fb_default_stn_monspecs = {
 375         .manufacturer   = "HIT",
 376         .monitor        = "SP06Q002",
 377
 378         .modedb         = at91_stn_modes,
 379         .modedb_len     = ARRAY_SIZE(at91_stn_modes),
 380         .hfmin          = 15000,
 381         .hfmax          = 64000,
 382         .vfmin          = 50,
 383         .vfmax          = 150,
 384 };
 385
 386 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 387                                         | ATMEL_LCDC_DISTYPE_STNMONO \
 388                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
 389                                         | ATMEL_LCDC_IFWIDTH_4 \
 390                                         | ATMEL_LCDC_SCANMOD_SINGLE)
 391
 392 static void at91_lcdc_stn_power_control(int on)
 393 {
 394         /* backlight */
 395         if (on) {       /* power up */
 396                 at91_set_gpio_value(AT91_PIN_PC14, 0);
 397                 at91_set_gpio_value(AT91_PIN_PC15, 0);
 398         } else {        /* power down */
 399                 at91_set_gpio_value(AT91_PIN_PC14, 1);
 400                 at91_set_gpio_value(AT91_PIN_PC15, 1);
 401         }
 402 }
 403
 404 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 405         .default_bpp                    = 1,
 406         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 407         .default_lcdcon2                = AT91SAM9261_DEFAULT_STN_LCDCON2,
 408         .default_monspecs               = &at91fb_default_stn_monspecs,
 409         .atmel_lcdfb_power_control      = at91_lcdc_stn_power_control,
 410         .guard_time                     = 1,
 411 };
 412
 413 #else
 414
 415 /* TFT */
 416 static struct fb_videomode at91_tft_vga_modes[] = {
 417         {
 418                 .name           = "TX09D50VM1CCA @ 60",
 419                 .refresh        = 60,
 420                 .xres           = 240,          .yres           = 320,
 421                 .pixclock       = KHZ2PICOS(4965),
 422
 423                 .left_margin    = 1,            .right_margin   = 33,
 424                 .upper_margin   = 1,            .lower_margin   = 0,
 425                 .hsync_len      = 5,            .vsync_len      = 1,
 426
 427                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 428                 .vmode          = FB_VMODE_NONINTERLACED,
 429         },
 430 };
 431
 432 static struct fb_monspecs at91fb_default_tft_monspecs = {
 433         .manufacturer   = "HIT",
 434         .monitor        = "TX09D50VM1CCA",
 435
 436         .modedb         = at91_tft_vga_modes,
 437         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 438         .hfmin          = 15000,
 439         .hfmax          = 64000,
 440         .vfmin          = 50,
 441         .vfmax          = 150,
 442 };
 443
 444 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 445                                         | ATMEL_LCDC_DISTYPE_TFT    \
 446                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 447
 448 static void at91_lcdc_tft_power_control(int on)
 449 {
 450         if (on)
 451                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
 452         else
 453                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
 454 }
 455
 456 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 457         .lcdcon_is_backlight            = true,
 458         .default_bpp                    = 16,
 459         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 460         .default_lcdcon2                = AT91SAM9261_DEFAULT_TFT_LCDCON2,
 461         .default_monspecs               = &at91fb_default_tft_monspecs,
 462         .atmel_lcdfb_power_control      = at91_lcdc_tft_power_control,
 463         .guard_time                     = 1,
 464 };
 465 #endif
 466
 467 #else
 468 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 469 #endif
 470
 471
 472 /*
 473  * GPIO Buttons
 474  */
 475 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 476 static struct gpio_keys_button ek_buttons[] = {
 477         {
 478                 .gpio           = AT91_PIN_PA27,
 479                 .code           = BTN_0,
 480                 .desc           = "Button 0",
 481                 .active_low     = 1,
 482                 .wakeup         = 1,
 483         },
 484         {
 485                 .gpio           = AT91_PIN_PA26,
 486                 .code           = BTN_1,
 487                 .desc           = "Button 1",
 488                 .active_low     = 1,
 489                 .wakeup         = 1,
 490         },
 491         {
 492                 .gpio           = AT91_PIN_PA25,
 493                 .code           = BTN_2,
 494                 .desc           = "Button 2",
 495                 .active_low     = 1,
 496                 .wakeup         = 1,
 497         },
 498         {
 499                 .gpio           = AT91_PIN_PA24,
 500                 .code           = BTN_3,
 501                 .desc           = "Button 3",
 502                 .active_low     = 1,
 503                 .wakeup         = 1,
 504         }
 505 };
 506
 507 static struct gpio_keys_platform_data ek_button_data = {
 508         .buttons        = ek_buttons,
 509         .nbuttons       = ARRAY_SIZE(ek_buttons),
 510 };
 511
 512 static struct platform_device ek_button_device = {
 513         .name           = "gpio-keys",
 514         .id             = -1,
 515         .num_resources  = 0,
 516         .dev            = {
 517                 .platform_data  = &ek_button_data,
 518         }
 519 };
 520
 521 static void __init ek_add_device_buttons(void)
 522 {
 523         at91_set_gpio_input(AT91_PIN_PA27, 1);  /* btn0 */
 524         at91_set_deglitch(AT91_PIN_PA27, 1);
 525         at91_set_gpio_input(AT91_PIN_PA26, 1);  /* btn1 */
 526         at91_set_deglitch(AT91_PIN_PA26, 1);
 527         at91_set_gpio_input(AT91_PIN_PA25, 1);  /* btn2 */
 528         at91_set_deglitch(AT91_PIN_PA25, 1);
 529         at91_set_gpio_input(AT91_PIN_PA24, 1);  /* btn3 */
 530         at91_set_deglitch(AT91_PIN_PA24, 1);
 531
 532         platform_device_register(&ek_button_device);
 533 }
 534 #else
 535 static void __init ek_add_device_buttons(void) {}
 536 #endif
 537
 538 /*
 539  * LEDs
 540  */
 541 static struct gpio_led ek_leds[] = {
 542         {       /* "bottom" led, green, userled1 to be defined */
 543                 .name                   = "ds7",
 544                 .gpio                   = AT91_PIN_PA14,
 545                 .active_low             = 1,
 546                 .default_trigger        = "none",
 547         },
 548         {       /* "top" led, green, userled2 to be defined */
 549                 .name                   = "ds8",
 550                 .gpio                   = AT91_PIN_PA13,
 551                 .active_low             = 1,
 552                 .default_trigger        = "none",
 553         },
 554         {       /* "power" led, yellow */
 555                 .name                   = "ds1",
 556                 .gpio                   = AT91_PIN_PA23,
 557                 .default_trigger        = "heartbeat",
 558         }
 559 };
 560
 561 static void __init ek_board_init(void)
 562 {
 563         /* Serial */
 564         /* DBGU on ttyS0. (Rx & Tx only) */
 565         at91_register_uart(0, 0, 0);
 566         at91_add_device_serial();
 567
 568         if (cpu_is_at91sam9g10())
 569                 ek_lcdc_data.lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB;
 570
 571         /* USB Host */
 572         at91_add_device_usbh(&ek_usbh_data);
 573         /* USB Device */
 574         at91_add_device_udc(&ek_udc_data);
 575         /* I2C */
 576         at91_add_device_i2c(NULL, 0);
 577         /* NAND */
 578         ek_add_device_nand();
 579         /* DM9000 ethernet */
 580         ek_add_device_dm9000();
 581
 582         /* spi0 and mmc/sd share the same PIO pins */
 583 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 584         /* SPI */
 585         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 586         /* Touchscreen */
 587         ek_add_device_ts();
 588         /* SSC (to AT73C213) */
 589         at73c213_set_clk(&at73c213_data);
 590         at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
 591 #else
 592         /* MMC */
 593         at91_add_device_mci(0, &mci0_data);
 594 #endif
 595         /* LCD Controller */
 596         at91_add_device_lcdc(&ek_lcdc_data);
 597         /* Push Buttons */
 598         ek_add_device_buttons();
 599         /* LEDs */
 600         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 601 }
 602
 603 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
 604         /* Maintainer: Atmel */
 605         .init_time      = at91sam926x_pit_init,
 606         .map_io         = at91_map_io,
 607         .handle_irq     = at91_aic_handle_irq,
 608         .init_early     = ek_init_early,
 609         .init_irq       = at91_init_irq_default,
 610         .init_machine   = ek_board_init,
 611 MACHINE_END
 612
 613 MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
 614         /* Maintainer: Atmel */
 615         .init_time      = at91sam926x_pit_init,
 616         .map_io         = at91_map_io,
 617         .handle_irq     = at91_aic_handle_irq,
 618         .init_early     = ek_init_early,
 619         .init_irq       = at91_init_irq_default,
 620         .init_machine   = ek_board_init,
 621 MACHINE_END