arch/blackfin/mach-bf533/boards/stamp.c

   1 /*
   2  * File:         arch/blackfin/mach-bf533/stamp.c
   3  * Based on:     arch/blackfin/mach-bf533/ezkit.c
   4  * Author:       Aidan Williams <aidan@nicta.com.au>
   5  *
   6  * Created:      2005
   7  * Description:  Board Info File for the BF533-STAMP
   8  *
   9  * Modified:
  10  *               Copyright 2005 National ICT Australia (NICTA)
  11  *               Copyright 2004-2006 Analog Devices Inc.
  12  *
  13  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation; either version 2 of the License, or
  18  * (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, see the file COPYING, or write
  27  * to the Free Software Foundation, Inc.,
  28  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  29  */
  30
  31 #include <linux/device.h>
  32 #include <linux/platform_device.h>
  33 #include <linux/mtd/mtd.h>
  34 #include <linux/mtd/partitions.h>
  35 #include <linux/mtd/physmap.h>
  36 #include <linux/spi/spi.h>
  37 #include <linux/spi/flash.h>
  38 #include <linux/spi/mmc_spi.h>
  39 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
  40 #include <linux/usb/isp1362.h>
  41 #endif
  42 #include <linux/irq.h>
  43 #include <linux/i2c.h>
  44 #include <asm/dma.h>
  45 #include <asm/bfin5xx_spi.h>
  46 #include <asm/reboot.h>
  47 #include <asm/portmux.h>
  48 #include <asm/dpmc.h>
  49
  50 /*
  51  * Name the Board for the /proc/cpuinfo
  52  */
  53 const char bfin_board_name[] = "ADI BF533-STAMP";
  54
  55 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
  56 static struct platform_device rtc_device = {
  57         .name = "rtc-bfin",
  58         .id   = -1,
  59 };
  60 #endif
  61
  62 /*
  63  *  Driver needs to know address, irq and flag pin.
  64  */
  65 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
  66 #include <linux/smc91x.h>
  67
  68 static struct smc91x_platdata smc91x_info = {
  69         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  70         .leda = RPC_LED_100_10,
  71         .ledb = RPC_LED_TX_RX,
  72 };
  73
  74 static struct resource smc91x_resources[] = {
  75         {
  76                 .name = "smc91x-regs",
  77                 .start = 0x20300300,
  78                 .end = 0x20300300 + 16,
  79                 .flags = IORESOURCE_MEM,
  80         }, {
  81                 .start = IRQ_PF7,
  82                 .end = IRQ_PF7,
  83                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  84         },
  85 };
  86
  87 static struct platform_device smc91x_device = {
  88         .name = "smc91x",
  89         .id = 0,
  90         .num_resources = ARRAY_SIZE(smc91x_resources),
  91         .resource = smc91x_resources,
  92         .dev    = {
  93                 .platform_data  = &smc91x_info,
  94         },
  95 };
  96 #endif
  97
  98 #if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
  99 static struct platform_device bfin_fb_adv7393_device = {
 100         .name = "bfin-adv7393",
 101 };
 102 #endif
 103
 104 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 105 static struct resource net2272_bfin_resources[] = {
 106         {
 107                 .start = 0x20300000,
 108                 .end = 0x20300000 + 0x100,
 109                 .flags = IORESOURCE_MEM,
 110         }, {
 111                 .start = IRQ_PF10,
 112                 .end = IRQ_PF10,
 113                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 114         },
 115 };
 116
 117 static struct platform_device net2272_bfin_device = {
 118         .name = "net2272",
 119         .id = -1,
 120         .num_resources = ARRAY_SIZE(net2272_bfin_resources),
 121         .resource = net2272_bfin_resources,
 122 };
 123 #endif
 124
 125 #if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 126 static struct mtd_partition stamp_partitions[] = {
 127         {
 128                 .name   = "bootloader(nor)",
 129                 .size   = 0x40000,
 130                 .offset = 0,
 131         }, {
 132                 .name   = "linux kernel(nor)",
 133                 .size   = 0x180000,
 134                 .offset = MTDPART_OFS_APPEND,
 135         }, {
 136                 .name   = "file system(nor)",
 137                 .size   = MTDPART_SIZ_FULL,
 138                 .offset = MTDPART_OFS_APPEND,
 139         }
 140 };
 141
 142 static struct physmap_flash_data stamp_flash_data = {
 143         .width    = 2,
 144         .parts    = stamp_partitions,
 145         .nr_parts = ARRAY_SIZE(stamp_partitions),
 146 };
 147
 148 static struct resource stamp_flash_resource[] = {
 149         {
 150                 .name  = "cfi_probe",
 151                 .start = 0x20000000,
 152                 .end   = 0x203fffff,
 153                 .flags = IORESOURCE_MEM,
 154         }, {
 155                 .start = 0x7BB07BB0,    /* AMBCTL0 setting when accessing flash */
 156                 .end   = 0x7BB07BB0,    /* AMBCTL1 setting when accessing flash */
 157                 .flags = IORESOURCE_MEM,
 158         }, {
 159                 .start = GPIO_PF0,
 160                 .flags = IORESOURCE_IRQ,
 161         }
 162 };
 163
 164 static struct platform_device stamp_flash_device = {
 165         .name          = "bfin-async-flash",
 166         .id            = 0,
 167         .dev = {
 168                 .platform_data = &stamp_flash_data,
 169         },
 170         .num_resources = ARRAY_SIZE(stamp_flash_resource),
 171         .resource      = stamp_flash_resource,
 172 };
 173 #endif
 174
 175 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 176 static struct mtd_partition bfin_spi_flash_partitions[] = {
 177         {
 178                 .name = "bootloader(spi)",
 179                 .size = 0x00040000,
 180                 .offset = 0,
 181                 .mask_flags = MTD_CAP_ROM
 182         }, {
 183                 .name = "linux kernel(spi)",
 184                 .size = 0x180000,
 185                 .offset = MTDPART_OFS_APPEND,
 186         }, {
 187                 .name = "file system(spi)",
 188                 .size = MTDPART_SIZ_FULL,
 189                 .offset = MTDPART_OFS_APPEND,
 190         }
 191 };
 192
 193 static struct flash_platform_data bfin_spi_flash_data = {
 194         .name = "m25p80",
 195         .parts = bfin_spi_flash_partitions,
 196         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
 197         .type = "m25p64",
 198 };
 199
 200 /* SPI flash chip (m25p64) */
 201 static struct bfin5xx_spi_chip spi_flash_chip_info = {
 202         .enable_dma = 0,         /* use dma transfer with this chip*/
 203         .bits_per_word = 8,
 204 };
 205 #endif
 206
 207 #if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
 208 /* SPI ADC chip */
 209 static struct bfin5xx_spi_chip spi_adc_chip_info = {
 210         .enable_dma = 1,         /* use dma transfer with this chip*/
 211         .bits_per_word = 16,
 212 };
 213 #endif
 214
 215 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
 216 static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
 217         .enable_dma = 0,
 218         .bits_per_word = 16,
 219 };
 220 #endif
 221
 222 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 223 static struct bfin5xx_spi_chip spidev_chip_info = {
 224         .enable_dma = 0,
 225         .bits_per_word = 8,
 226 };
 227 #endif
 228
 229 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 230 #define MMC_SPI_CARD_DETECT_INT IRQ_PF5
 231 static int bfin_mmc_spi_init(struct device *dev,
 232         irqreturn_t (*detect_int)(int, void *), void *data)
 233 {
 234         return request_irq(MMC_SPI_CARD_DETECT_INT, detect_int,
 235                 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 236                 "mmc-spi-detect", data);
 237 }
 238
 239 static void bfin_mmc_spi_exit(struct device *dev, void *data)
 240 {
 241         free_irq(MMC_SPI_CARD_DETECT_INT, data);
 242 }
 243
 244 static struct mmc_spi_platform_data bfin_mmc_spi_pdata = {
 245         .init = bfin_mmc_spi_init,
 246         .exit = bfin_mmc_spi_exit,
 247         .detect_delay = 100, /* msecs */
 248 };
 249
 250 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
 251         .enable_dma = 0,
 252         .bits_per_word = 8,
 253         .pio_interrupt = 0,
 254 };
 255 #endif
 256
 257 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 258 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 259         {
 260                 /* the modalias must be the same as spi device driver name */
 261                 .modalias = "m25p80", /* Name of spi_driver for this device */
 262                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
 263                 .bus_num = 0, /* Framework bus number */
 264                 .chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL2*/
 265                 .platform_data = &bfin_spi_flash_data,
 266                 .controller_data = &spi_flash_chip_info,
 267                 .mode = SPI_MODE_3,
 268         },
 269 #endif
 270
 271 #if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
 272         {
 273                 .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */
 274                 .max_speed_hz = 6250000,     /* max spi clock (SCK) speed in HZ */
 275                 .bus_num = 0, /* Framework bus number */
 276                 .chip_select = 1, /* Framework chip select. */
 277                 .platform_data = NULL, /* No spi_driver specific config */
 278                 .controller_data = &spi_adc_chip_info,
 279         },
 280 #endif
 281
 282 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
 283         {
 284                 .modalias = "ad1836",
 285                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 286                 .bus_num = 0,
 287                 .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT,
 288                 .controller_data = &ad1836_spi_chip_info,
 289         },
 290 #endif
 291
 292 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 293         {
 294                 .modalias = "spidev",
 295                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 296                 .bus_num = 0,
 297                 .chip_select = 1,
 298                 .controller_data = &spidev_chip_info,
 299         },
 300 #endif
 301 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 302         {
 303                 .modalias = "mmc_spi",
 304                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 305                 .bus_num = 0,
 306                 .chip_select = 4,
 307                 .platform_data = &bfin_mmc_spi_pdata,
 308                 .controller_data = &mmc_spi_chip_info,
 309                 .mode = SPI_MODE_3,
 310         },
 311 #endif
 312 };
 313
 314 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 315 /* SPI (0) */
 316 static struct resource bfin_spi0_resource[] = {
 317         [0] = {
 318                 .start = SPI0_REGBASE,
 319                 .end   = SPI0_REGBASE + 0xFF,
 320                 .flags = IORESOURCE_MEM,
 321         },
 322         [1] = {
 323                 .start = CH_SPI,
 324                 .end   = CH_SPI,
 325                 .flags = IORESOURCE_DMA,
 326         },
 327         [2] = {
 328                 .start = IRQ_SPI,
 329                 .end   = IRQ_SPI,
 330                 .flags = IORESOURCE_IRQ,
 331         }
 332 };
 333
 334 /* SPI controller data */
 335 static struct bfin5xx_spi_master bfin_spi0_info = {
 336         .num_chipselect = 8,
 337         .enable_dma = 1,  /* master has the ability to do dma transfer */
 338         .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
 339 };
 340
 341 static struct platform_device bfin_spi0_device = {
 342         .name = "bfin-spi",
 343         .id = 0, /* Bus number */
 344         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 345         .resource = bfin_spi0_resource,
 346         .dev = {
 347                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 348         },
 349 };
 350 #endif  /* spi master and devices */
 351
 352 #if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE)
 353 static struct platform_device bfin_fb_device = {
 354         .name = "bf537-fb",
 355 };
 356 #endif
 357
 358 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 359 static struct resource bfin_uart_resources[] = {
 360         {
 361                 .start = 0xFFC00400,
 362                 .end = 0xFFC004FF,
 363                 .flags = IORESOURCE_MEM,
 364         },
 365 };
 366
 367 static struct platform_device bfin_uart_device = {
 368         .name = "bfin-uart",
 369         .id = 1,
 370         .num_resources = ARRAY_SIZE(bfin_uart_resources),
 371         .resource = bfin_uart_resources,
 372 };
 373 #endif
 374
 375 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 376 #ifdef CONFIG_BFIN_SIR0
 377 static struct resource bfin_sir0_resources[] = {
 378         {
 379                 .start = 0xFFC00400,
 380                 .end = 0xFFC004FF,
 381                 .flags = IORESOURCE_MEM,
 382         },
 383         {
 384                 .start = IRQ_UART0_RX,
 385                 .end = IRQ_UART0_RX+1,
 386                 .flags = IORESOURCE_IRQ,
 387         },
 388         {
 389                 .start = CH_UART0_RX,
 390                 .end = CH_UART0_RX+1,
 391                 .flags = IORESOURCE_DMA,
 392         },
 393 };
 394
 395 static struct platform_device bfin_sir0_device = {
 396         .name = "bfin_sir",
 397         .id = 0,
 398         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 399         .resource = bfin_sir0_resources,
 400 };
 401 #endif
 402 #endif
 403
 404 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 405 static struct platform_device bfin_sport0_uart_device = {
 406         .name = "bfin-sport-uart",
 407         .id = 0,
 408 };
 409
 410 static struct platform_device bfin_sport1_uart_device = {
 411         .name = "bfin-sport-uart",
 412         .id = 1,
 413 };
 414 #endif
 415
 416 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 417 #include <linux/input.h>
 418 #include <linux/gpio_keys.h>
 419
 420 static struct gpio_keys_button bfin_gpio_keys_table[] = {
 421         {BTN_0, GPIO_PF5, 0, "gpio-keys: BTN0"},
 422         {BTN_1, GPIO_PF6, 0, "gpio-keys: BTN1"},
 423         {BTN_2, GPIO_PF8, 0, "gpio-keys: BTN2"},
 424 };
 425
 426 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
 427         .buttons        = bfin_gpio_keys_table,
 428         .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
 429 };
 430
 431 static struct platform_device bfin_device_gpiokeys = {
 432         .name      = "gpio-keys",
 433         .dev = {
 434                 .platform_data = &bfin_gpio_keys_data,
 435         },
 436 };
 437 #endif
 438
 439 static struct resource bfin_gpios_resources = {
 440         .start = 0,
 441         .end   = MAX_BLACKFIN_GPIOS - 1,
 442         .flags = IORESOURCE_IRQ,
 443 };
 444
 445 static struct platform_device bfin_gpios_device = {
 446         .name = "simple-gpio",
 447         .id = -1,
 448         .num_resources = 1,
 449         .resource = &bfin_gpios_resources,
 450 };
 451
 452 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 453 #include <linux/i2c-gpio.h>
 454
 455 static struct i2c_gpio_platform_data i2c_gpio_data = {
 456         .sda_pin                = 2,
 457         .scl_pin                = 3,
 458         .sda_is_open_drain      = 0,
 459         .scl_is_open_drain      = 0,
 460         .udelay                 = 40,
 461 };
 462
 463 static struct platform_device i2c_gpio_device = {
 464         .name           = "i2c-gpio",
 465         .id             = 0,
 466         .dev            = {
 467                 .platform_data  = &i2c_gpio_data,
 468         },
 469 };
 470 #endif
 471
 472 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 473 #if defined(CONFIG_JOYSTICK_AD7142) || defined(CONFIG_JOYSTICK_AD7142_MODULE)
 474         {
 475                 I2C_BOARD_INFO("ad7142_joystick", 0x2C),
 476                 .irq = 39,
 477         },
 478 #endif
 479 #if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
 480         {
 481                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
 482         },
 483 #endif
 484 #if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
 485         {
 486                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
 487                 .irq = 39,
 488         },
 489 #endif
 490 };
 491
 492 static const unsigned int cclk_vlev_datasheet[] =
 493 {
 494         VRPAIR(VLEV_085, 250000000),
 495         VRPAIR(VLEV_090, 376000000),
 496         VRPAIR(VLEV_095, 426000000),
 497         VRPAIR(VLEV_100, 426000000),
 498         VRPAIR(VLEV_105, 476000000),
 499         VRPAIR(VLEV_110, 476000000),
 500         VRPAIR(VLEV_115, 476000000),
 501         VRPAIR(VLEV_120, 600000000),
 502         VRPAIR(VLEV_125, 600000000),
 503         VRPAIR(VLEV_130, 600000000),
 504 };
 505
 506 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 507         .tuple_tab = cclk_vlev_datasheet,
 508         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 509         .vr_settling_time = 25 /* us */,
 510 };
 511
 512 static struct platform_device bfin_dpmc = {
 513         .name = "bfin dpmc",
 514         .dev = {
 515                 .platform_data = &bfin_dmpc_vreg_data,
 516         },
 517 };
 518
 519 static struct platform_device *stamp_devices[] __initdata = {
 520
 521         &bfin_dpmc,
 522
 523 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 524         &rtc_device,
 525 #endif
 526
 527 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 528         &smc91x_device,
 529 #endif
 530
 531 #if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
 532         &bfin_fb_adv7393_device,
 533 #endif
 534
 535 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 536         &net2272_bfin_device,
 537 #endif
 538
 539 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 540         &bfin_spi0_device,
 541 #endif
 542
 543 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 544         &bfin_uart_device,
 545 #endif
 546
 547 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 548 #ifdef CONFIG_BFIN_SIR0
 549         &bfin_sir0_device,
 550 #endif
 551 #endif
 552
 553 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 554         &bfin_sport0_uart_device,
 555         &bfin_sport1_uart_device,
 556 #endif
 557
 558 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 559         &bfin_device_gpiokeys,
 560 #endif
 561
 562 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 563         &i2c_gpio_device,
 564 #endif
 565
 566         &bfin_gpios_device,
 567
 568 #if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 569         &stamp_flash_device,
 570 #endif
 571 };
 572
 573 static int __init stamp_init(void)
 574 {
 575         int ret;
 576
 577         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 578
 579         i2c_register_board_info(0, bfin_i2c_board_info,
 580                                 ARRAY_SIZE(bfin_i2c_board_info));
 581
 582         ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 583         if (ret < 0)
 584                 return ret;
 585
 586 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 587         /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 588         bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
 589         bfin_write_FIO_FLAG_S(PF0);
 590         SSYNC();
 591 #endif
 592
 593         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 594         return 0;
 595 }
 596
 597 arch_initcall(stamp_init);
 598
 599 void native_machine_restart(char *cmd)
 600 {
 601         /* workaround pull up on cpld / flash pin not being strong enough */
 602         bfin_write_FIO_INEN(~PF0);
 603         bfin_write_FIO_DIR(PF0);
 604         bfin_write_FIO_FLAG_C(PF0);
 605 }