kernel/2.6.29.6-aldebaran-rt/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 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
  39 #include <linux/usb/isp1362.h>
  40 #endif
  41 #include <linux/irq.h>
  42 #include <linux/i2c.h>
  43 #include <asm/dma.h>
  44 #include <asm/bfin5xx_spi.h>
  45 #include <asm/reboot.h>
  46 #include <asm/portmux.h>
  47 #include <asm/dpmc.h>
  48
  49 /*
  50  * Name the Board for the /proc/cpuinfo
  51  */
  52 const char bfin_board_name[] = "ADI BF533-STAMP";
  53
  54 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
  55 static struct platform_device rtc_device = {
  56         .name = "rtc-bfin",
  57         .id   = -1,
  58 };
  59 #endif
  60
  61 /*
  62  *  Driver needs to know address, irq and flag pin.
  63  */
  64 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
  65 static struct resource smc91x_resources[] = {
  66         {
  67                 .name = "smc91x-regs",
  68                 .start = 0x20300300,
  69                 .end = 0x20300300 + 16,
  70                 .flags = IORESOURCE_MEM,
  71         }, {
  72                 .start = IRQ_PF7,
  73                 .end = IRQ_PF7,
  74                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  75         },
  76 };
  77
  78 static struct platform_device smc91x_device = {
  79         .name = "smc91x",
  80         .id = 0,
  81         .num_resources = ARRAY_SIZE(smc91x_resources),
  82         .resource = smc91x_resources,
  83 };
  84 #endif
  85
  86 #if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
  87 static struct platform_device bfin_fb_adv7393_device = {
  88         .name = "bfin-adv7393",
  89 };
  90 #endif
  91
  92 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
  93 static struct resource net2272_bfin_resources[] = {
  94         {
  95                 .start = 0x20300000,
  96                 .end = 0x20300000 + 0x100,
  97                 .flags = IORESOURCE_MEM,
  98         }, {
  99                 .start = IRQ_PF10,
 100                 .end = IRQ_PF10,
 101                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 102         },
 103 };
 104
 105 static struct platform_device net2272_bfin_device = {
 106         .name = "net2272",
 107         .id = -1,
 108         .num_resources = ARRAY_SIZE(net2272_bfin_resources),
 109         .resource = net2272_bfin_resources,
 110 };
 111 #endif
 112
 113 #if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 114 static struct mtd_partition stamp_partitions[] = {
 115         {
 116                 .name   = "bootloader(nor)",
 117                 .size   = 0x40000,
 118                 .offset = 0,
 119         }, {
 120                 .name   = "linux kernel(nor)",
 121                 .size   = 0x180000,
 122                 .offset = MTDPART_OFS_APPEND,
 123         }, {
 124                 .name   = "file system(nor)",
 125                 .size   = MTDPART_SIZ_FULL,
 126                 .offset = MTDPART_OFS_APPEND,
 127         }
 128 };
 129
 130 static struct physmap_flash_data stamp_flash_data = {
 131         .width    = 2,
 132         .parts    = stamp_partitions,
 133         .nr_parts = ARRAY_SIZE(stamp_partitions),
 134 };
 135
 136 static struct resource stamp_flash_resource[] = {
 137         {
 138                 .name  = "cfi_probe",
 139                 .start = 0x20000000,
 140                 .end   = 0x203fffff,
 141                 .flags = IORESOURCE_MEM,
 142         }, {
 143                 .start = 0x7BB07BB0,    /* AMBCTL0 setting when accessing flash */
 144                 .end   = 0x7BB07BB0,    /* AMBCTL1 setting when accessing flash */
 145                 .flags = IORESOURCE_MEM,
 146         }, {
 147                 .start = GPIO_PF0,
 148                 .flags = IORESOURCE_IRQ,
 149         }
 150 };
 151
 152 static struct platform_device stamp_flash_device = {
 153         .name          = "bfin-async-flash",
 154         .id            = 0,
 155         .dev = {
 156                 .platform_data = &stamp_flash_data,
 157         },
 158         .num_resources = ARRAY_SIZE(stamp_flash_resource),
 159         .resource      = stamp_flash_resource,
 160 };
 161 #endif
 162
 163 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 164 static struct mtd_partition bfin_spi_flash_partitions[] = {
 165         {
 166                 .name = "bootloader(spi)",
 167                 .size = 0x00040000,
 168                 .offset = 0,
 169                 .mask_flags = MTD_CAP_ROM
 170         }, {
 171                 .name = "linux kernel(spi)",
 172                 .size = 0x180000,
 173                 .offset = MTDPART_OFS_APPEND,
 174         }, {
 175                 .name = "file system(spi)",
 176                 .size = MTDPART_SIZ_FULL,
 177                 .offset = MTDPART_OFS_APPEND,
 178         }
 179 };
 180
 181 static struct flash_platform_data bfin_spi_flash_data = {
 182         .name = "m25p80",
 183         .parts = bfin_spi_flash_partitions,
 184         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
 185         .type = "m25p64",
 186 };
 187
 188 /* SPI flash chip (m25p64) */
 189 static struct bfin5xx_spi_chip spi_flash_chip_info = {
 190         .enable_dma = 0,         /* use dma transfer with this chip*/
 191         .bits_per_word = 8,
 192 };
 193 #endif
 194
 195 #if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE)
 196 /* SPI ADC chip */
 197 static struct bfin5xx_spi_chip spi_adc_chip_info = {
 198         .enable_dma = 1,         /* use dma transfer with this chip*/
 199         .bits_per_word = 16,
 200 };
 201 #endif
 202
 203 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
 204 static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
 205         .enable_dma = 0,
 206         .bits_per_word = 16,
 207 };
 208 #endif
 209
 210 #if defined(CONFIG_PBX)
 211 static struct bfin5xx_spi_chip spi_si3xxx_chip_info = {
 212         .ctl_reg        = 0x4, /* send zero */
 213         .enable_dma     = 0,
 214         .bits_per_word  = 8,
 215         .cs_change_per_word = 1,
 216 };
 217 #endif
 218
 219 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 220 static struct bfin5xx_spi_chip spidev_chip_info = {
 221         .enable_dma = 0,
 222         .bits_per_word = 8,
 223 };
 224 #endif
 225
 226 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 227 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 228         {
 229                 /* the modalias must be the same as spi device driver name */
 230                 .modalias = "m25p80", /* Name of spi_driver for this device */
 231                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
 232                 .bus_num = 0, /* Framework bus number */
 233                 .chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL2*/
 234                 .platform_data = &bfin_spi_flash_data,
 235                 .controller_data = &spi_flash_chip_info,
 236                 .mode = SPI_MODE_3,
 237         },
 238 #endif
 239
 240 #if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE)
 241         {
 242                 .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */
 243                 .max_speed_hz = 6250000,     /* max spi clock (SCK) speed in HZ */
 244                 .bus_num = 0, /* Framework bus number */
 245                 .chip_select = 1, /* Framework chip select. */
 246                 .platform_data = NULL, /* No spi_driver specific config */
 247                 .controller_data = &spi_adc_chip_info,
 248         },
 249 #endif
 250
 251 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
 252         {
 253                 .modalias = "ad1836-spi",
 254                 .max_speed_hz = 31250000,     /* max spi clock (SCK) speed in HZ */
 255                 .bus_num = 0,
 256                 .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT,
 257                 .controller_data = &ad1836_spi_chip_info,
 258         },
 259 #endif
 260
 261 #if defined(CONFIG_PBX)
 262         {
 263                 .modalias = "fxs-spi",
 264                 .max_speed_hz = 12500000,     /* max spi clock (SCK) speed in HZ */
 265                 .bus_num = 0,
 266                 .chip_select = 8 - CONFIG_J11_JUMPER,
 267                 .controller_data = &spi_si3xxx_chip_info,
 268                 .mode = SPI_MODE_3,
 269         },
 270         {
 271                 .modalias = "fxo-spi",
 272                 .max_speed_hz = 12500000,     /* max spi clock (SCK) speed in HZ */
 273                 .bus_num = 0,
 274                 .chip_select = 8 - CONFIG_J19_JUMPER,
 275                 .controller_data = &spi_si3xxx_chip_info,
 276                 .mode = SPI_MODE_3,
 277         },
 278 #endif
 279
 280 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 281         {
 282                 .modalias = "spidev",
 283                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 284                 .bus_num = 0,
 285                 .chip_select = 1,
 286                 .controller_data = &spidev_chip_info,
 287         },
 288 #endif
 289 };
 290
 291 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 292 /* SPI (0) */
 293 static struct resource bfin_spi0_resource[] = {
 294         [0] = {
 295                 .start = SPI0_REGBASE,
 296                 .end   = SPI0_REGBASE + 0xFF,
 297                 .flags = IORESOURCE_MEM,
 298         },
 299         [1] = {
 300                 .start = CH_SPI,
 301                 .end   = CH_SPI,
 302                 .flags = IORESOURCE_IRQ,
 303         }
 304 };
 305
 306 /* SPI controller data */
 307 static struct bfin5xx_spi_master bfin_spi0_info = {
 308         .num_chipselect = 8,
 309         .enable_dma = 1,  /* master has the ability to do dma transfer */
 310         .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
 311 };
 312
 313 static struct platform_device bfin_spi0_device = {
 314         .name = "bfin-spi",
 315         .id = 0, /* Bus number */
 316         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 317         .resource = bfin_spi0_resource,
 318         .dev = {
 319                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 320         },
 321 };
 322 #endif  /* spi master and devices */
 323
 324 #if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE)
 325 static struct platform_device bfin_fb_device = {
 326         .name = "bf537-fb",
 327 };
 328 #endif
 329
 330 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 331 static struct resource bfin_uart_resources[] = {
 332         {
 333                 .start = 0xFFC00400,
 334                 .end = 0xFFC004FF,
 335                 .flags = IORESOURCE_MEM,
 336         },
 337 };
 338
 339 static struct platform_device bfin_uart_device = {
 340         .name = "bfin-uart",
 341         .id = 1,
 342         .num_resources = ARRAY_SIZE(bfin_uart_resources),
 343         .resource = bfin_uart_resources,
 344 };
 345 #endif
 346
 347 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 348 #ifdef CONFIG_BFIN_SIR0
 349 static struct resource bfin_sir0_resources[] = {
 350         {
 351                 .start = 0xFFC00400,
 352                 .end = 0xFFC004FF,
 353                 .flags = IORESOURCE_MEM,
 354         },
 355         {
 356                 .start = IRQ_UART0_RX,
 357                 .end = IRQ_UART0_RX+1,
 358                 .flags = IORESOURCE_IRQ,
 359         },
 360         {
 361                 .start = CH_UART0_RX,
 362                 .end = CH_UART0_RX+1,
 363                 .flags = IORESOURCE_DMA,
 364         },
 365 };
 366
 367 static struct platform_device bfin_sir0_device = {
 368         .name = "bfin_sir",
 369         .id = 0,
 370         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 371         .resource = bfin_sir0_resources,
 372 };
 373 #endif
 374 #endif
 375
 376 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 377 static struct platform_device bfin_sport0_uart_device = {
 378         .name = "bfin-sport-uart",
 379         .id = 0,
 380 };
 381
 382 static struct platform_device bfin_sport1_uart_device = {
 383         .name = "bfin-sport-uart",
 384         .id = 1,
 385 };
 386 #endif
 387
 388 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 389 #include <linux/input.h>
 390 #include <linux/gpio_keys.h>
 391
 392 static struct gpio_keys_button bfin_gpio_keys_table[] = {
 393         {BTN_0, GPIO_PF5, 0, "gpio-keys: BTN0"},
 394         {BTN_1, GPIO_PF6, 0, "gpio-keys: BTN1"},
 395         {BTN_2, GPIO_PF8, 0, "gpio-keys: BTN2"},
 396 };
 397
 398 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
 399         .buttons        = bfin_gpio_keys_table,
 400         .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
 401 };
 402
 403 static struct platform_device bfin_device_gpiokeys = {
 404         .name      = "gpio-keys",
 405         .dev = {
 406                 .platform_data = &bfin_gpio_keys_data,
 407         },
 408 };
 409 #endif
 410
 411 static struct resource bfin_gpios_resources = {
 412         .start = 0,
 413         .end   = MAX_BLACKFIN_GPIOS - 1,
 414         .flags = IORESOURCE_IRQ,
 415 };
 416
 417 static struct platform_device bfin_gpios_device = {
 418         .name = "simple-gpio",
 419         .id = -1,
 420         .num_resources = 1,
 421         .resource = &bfin_gpios_resources,
 422 };
 423
 424 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 425 #include <linux/i2c-gpio.h>
 426
 427 static struct i2c_gpio_platform_data i2c_gpio_data = {
 428         .sda_pin                = 2,
 429         .scl_pin                = 3,
 430         .sda_is_open_drain      = 0,
 431         .scl_is_open_drain      = 0,
 432         .udelay                 = 40,
 433 };
 434
 435 static struct platform_device i2c_gpio_device = {
 436         .name           = "i2c-gpio",
 437         .id             = 0,
 438         .dev            = {
 439                 .platform_data  = &i2c_gpio_data,
 440         },
 441 };
 442 #endif
 443
 444 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 445 #if defined(CONFIG_JOYSTICK_AD7142) || defined(CONFIG_JOYSTICK_AD7142_MODULE)
 446         {
 447                 I2C_BOARD_INFO("ad7142_joystick", 0x2C),
 448                 .irq = 39,
 449         },
 450 #endif
 451 #if defined(CONFIG_TWI_LCD) || defined(CONFIG_TWI_LCD_MODULE)
 452         {
 453                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
 454         },
 455 #endif
 456 #if defined(CONFIG_TWI_KEYPAD) || defined(CONFIG_TWI_KEYPAD_MODULE)
 457         {
 458                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
 459                 .irq = 39,
 460         },
 461 #endif
 462 };
 463
 464 static const unsigned int cclk_vlev_datasheet[] =
 465 {
 466         VRPAIR(VLEV_085, 250000000),
 467         VRPAIR(VLEV_090, 376000000),
 468         VRPAIR(VLEV_095, 426000000),
 469         VRPAIR(VLEV_100, 426000000),
 470         VRPAIR(VLEV_105, 476000000),
 471         VRPAIR(VLEV_110, 476000000),
 472         VRPAIR(VLEV_115, 476000000),
 473         VRPAIR(VLEV_120, 600000000),
 474         VRPAIR(VLEV_125, 600000000),
 475         VRPAIR(VLEV_130, 600000000),
 476 };
 477
 478 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 479         .tuple_tab = cclk_vlev_datasheet,
 480         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 481         .vr_settling_time = 25 /* us */,
 482 };
 483
 484 static struct platform_device bfin_dpmc = {
 485         .name = "bfin dpmc",
 486         .dev = {
 487                 .platform_data = &bfin_dmpc_vreg_data,
 488         },
 489 };
 490
 491 static struct platform_device *stamp_devices[] __initdata = {
 492
 493         &bfin_dpmc,
 494
 495 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 496         &rtc_device,
 497 #endif
 498
 499 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 500         &smc91x_device,
 501 #endif
 502
 503 #if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
 504         &bfin_fb_adv7393_device,
 505 #endif
 506
 507 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 508         &net2272_bfin_device,
 509 #endif
 510
 511 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 512         &bfin_spi0_device,
 513 #endif
 514
 515 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 516         &bfin_uart_device,
 517 #endif
 518
 519 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 520 #ifdef CONFIG_BFIN_SIR0
 521         &bfin_sir0_device,
 522 #endif
 523 #endif
 524
 525 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 526         &bfin_sport0_uart_device,
 527         &bfin_sport1_uart_device,
 528 #endif
 529
 530 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 531         &bfin_device_gpiokeys,
 532 #endif
 533
 534 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 535         &i2c_gpio_device,
 536 #endif
 537
 538         &bfin_gpios_device,
 539
 540 #if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 541         &stamp_flash_device,
 542 #endif
 543 };
 544
 545 static int __init stamp_init(void)
 546 {
 547         int ret;
 548
 549         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 550
 551         i2c_register_board_info(0, bfin_i2c_board_info,
 552                                 ARRAY_SIZE(bfin_i2c_board_info));
 553
 554         ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 555         if (ret < 0)
 556                 return ret;
 557
 558 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 559         /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 560         bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
 561         bfin_write_FIO_FLAG_S(PF0);
 562         SSYNC();
 563 #endif
 564
 565         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 566         return 0;
 567 }
 568
 569 arch_initcall(stamp_init);
 570
 571 void native_machine_restart(char *cmd)
 572 {
 573         /* workaround pull up on cpld / flash pin not being strong enough */
 574         bfin_write_FIO_INEN(~PF0);
 575         bfin_write_FIO_DIR(PF0);
 576         bfin_write_FIO_FLAG_C(PF0);
 577 }