SAFE public projects git trees. - safe/jmp/linux-2.6/blob - arch/blackfin/mach-bf533/boards/stamp.c

   1 /*
   2  * Copyright 2004-2009 Analog Devices Inc.
   3  *                2005 National ICT Australia (NICTA)
   4  *                      Aidan Williams <aidan@nicta.com.au>
   5  *
   6  * Licensed under the GPL-2 or later.
   7  */
   8
   9 #include <linux/device.h>
  10 #include <linux/platform_device.h>
  11 #include <linux/mtd/mtd.h>
  12 #include <linux/mtd/partitions.h>
  13 #include <linux/mtd/physmap.h>
  14 #include <linux/spi/spi.h>
  15 #include <linux/spi/flash.h>
  16 #include <linux/spi/mmc_spi.h>
  17 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
  18 #include <linux/usb/isp1362.h>
  19 #endif
  20 #include <linux/irq.h>
  21 #include <linux/i2c.h>
  22 #include <asm/dma.h>
  23 #include <asm/bfin5xx_spi.h>
  24 #include <asm/reboot.h>
  25 #include <asm/portmux.h>
  26 #include <asm/dpmc.h>
  27
  28 /*
  29  * Name the Board for the /proc/cpuinfo
  30  */
  31 const char bfin_board_name[] = "ADI BF533-STAMP";
  32
  33 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
  34 static struct platform_device rtc_device = {
  35         .name = "rtc-bfin",
  36         .id   = -1,
  37 };
  38 #endif
  39
  40 /*
  41  *  Driver needs to know address, irq and flag pin.
  42  */
  43 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
  44 #include <linux/smc91x.h>
  45
  46 static struct smc91x_platdata smc91x_info = {
  47         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  48         .leda = RPC_LED_100_10,
  49         .ledb = RPC_LED_TX_RX,
  50 };
  51
  52 static struct resource smc91x_resources[] = {
  53         {
  54                 .name = "smc91x-regs",
  55                 .start = 0x20300300,
  56                 .end = 0x20300300 + 16,
  57                 .flags = IORESOURCE_MEM,
  58         }, {
  59                 .start = IRQ_PF7,
  60                 .end = IRQ_PF7,
  61                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  62         },
  63 };
  64
  65 static struct platform_device smc91x_device = {
  66         .name = "smc91x",
  67         .id = 0,
  68         .num_resources = ARRAY_SIZE(smc91x_resources),
  69         .resource = smc91x_resources,
  70         .dev    = {
  71                 .platform_data  = &smc91x_info,
  72         },
  73 };
  74 #endif
  75
  76 #if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
  77 static struct platform_device bfin_fb_adv7393_device = {
  78         .name = "bfin-adv7393",
  79 };
  80 #endif
  81
  82 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
  83 static struct resource net2272_bfin_resources[] = {
  84         {
  85                 .start = 0x20300000,
  86                 .end = 0x20300000 + 0x100,
  87                 .flags = IORESOURCE_MEM,
  88         }, {
  89                 .start = IRQ_PF10,
  90                 .end = IRQ_PF10,
  91                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  92         },
  93 };
  94
  95 static struct platform_device net2272_bfin_device = {
  96         .name = "net2272",
  97         .id = -1,
  98         .num_resources = ARRAY_SIZE(net2272_bfin_resources),
  99         .resource = net2272_bfin_resources,
 100 };
 101 #endif
 102
 103 #if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 104 static struct mtd_partition stamp_partitions[] = {
 105         {
 106                 .name   = "bootloader(nor)",
 107                 .size   = 0x40000,
 108                 .offset = 0,
 109         }, {
 110                 .name   = "linux kernel(nor)",
 111                 .size   = 0x180000,
 112                 .offset = MTDPART_OFS_APPEND,
 113         }, {
 114                 .name   = "file system(nor)",
 115                 .size   = MTDPART_SIZ_FULL,
 116                 .offset = MTDPART_OFS_APPEND,
 117         }
 118 };
 119
 120 static struct physmap_flash_data stamp_flash_data = {
 121         .width    = 2,
 122         .parts    = stamp_partitions,
 123         .nr_parts = ARRAY_SIZE(stamp_partitions),
 124 };
 125
 126 static struct resource stamp_flash_resource[] = {
 127         {
 128                 .name  = "cfi_probe",
 129                 .start = 0x20000000,
 130                 .end   = 0x203fffff,
 131                 .flags = IORESOURCE_MEM,
 132         }, {
 133                 .start = 0x7BB07BB0,    /* AMBCTL0 setting when accessing flash */
 134                 .end   = 0x7BB07BB0,    /* AMBCTL1 setting when accessing flash */
 135                 .flags = IORESOURCE_MEM,
 136         }, {
 137                 .start = GPIO_PF0,
 138                 .flags = IORESOURCE_IRQ,
 139         }
 140 };
 141
 142 static struct platform_device stamp_flash_device = {
 143         .name          = "bfin-async-flash",
 144         .id            = 0,
 145         .dev = {
 146                 .platform_data = &stamp_flash_data,
 147         },
 148         .num_resources = ARRAY_SIZE(stamp_flash_resource),
 149         .resource      = stamp_flash_resource,
 150 };
 151 #endif
 152
 153 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 154 static struct mtd_partition bfin_spi_flash_partitions[] = {
 155         {
 156                 .name = "bootloader(spi)",
 157                 .size = 0x00040000,
 158                 .offset = 0,
 159                 .mask_flags = MTD_CAP_ROM
 160         }, {
 161                 .name = "linux kernel(spi)",
 162                 .size = 0x180000,
 163                 .offset = MTDPART_OFS_APPEND,
 164         }, {
 165                 .name = "file system(spi)",
 166                 .size = MTDPART_SIZ_FULL,
 167                 .offset = MTDPART_OFS_APPEND,
 168         }
 169 };
 170
 171 static struct flash_platform_data bfin_spi_flash_data = {
 172         .name = "m25p80",
 173         .parts = bfin_spi_flash_partitions,
 174         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
 175         .type = "m25p64",
 176 };
 177
 178 /* SPI flash chip (m25p64) */
 179 static struct bfin5xx_spi_chip spi_flash_chip_info = {
 180         .enable_dma = 0,         /* use dma transfer with this chip*/
 181         .bits_per_word = 8,
 182 };
 183 #endif
 184
 185 #if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
 186 /* SPI ADC chip */
 187 static struct bfin5xx_spi_chip spi_adc_chip_info = {
 188         .enable_dma = 1,         /* use dma transfer with this chip*/
 189         .bits_per_word = 16,
 190 };
 191 #endif
 192
 193 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
 194 static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
 195         .enable_dma = 0,
 196         .bits_per_word = 16,
 197 };
 198 #endif
 199
 200 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 201 static struct bfin5xx_spi_chip spidev_chip_info = {
 202         .enable_dma = 0,
 203         .bits_per_word = 8,
 204 };
 205 #endif
 206
 207 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 208 #define MMC_SPI_CARD_DETECT_INT IRQ_PF5
 209 static int bfin_mmc_spi_init(struct device *dev,
 210         irqreturn_t (*detect_int)(int, void *), void *data)
 211 {
 212         return request_irq(MMC_SPI_CARD_DETECT_INT, detect_int,
 213                 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 214                 "mmc-spi-detect", data);
 215 }
 216
 217 static void bfin_mmc_spi_exit(struct device *dev, void *data)
 218 {
 219         free_irq(MMC_SPI_CARD_DETECT_INT, data);
 220 }
 221
 222 static struct mmc_spi_platform_data bfin_mmc_spi_pdata = {
 223         .init = bfin_mmc_spi_init,
 224         .exit = bfin_mmc_spi_exit,
 225         .detect_delay = 100, /* msecs */
 226 };
 227
 228 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
 229         .enable_dma = 0,
 230         .bits_per_word = 8,
 231         .pio_interrupt = 0,
 232 };
 233 #endif
 234
 235 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 236 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 237         {
 238                 /* the modalias must be the same as spi device driver name */
 239                 .modalias = "m25p80", /* Name of spi_driver for this device */
 240                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
 241                 .bus_num = 0, /* Framework bus number */
 242                 .chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL2*/
 243                 .platform_data = &bfin_spi_flash_data,
 244                 .controller_data = &spi_flash_chip_info,
 245                 .mode = SPI_MODE_3,
 246         },
 247 #endif
 248
 249 #if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
 250         {
 251                 .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */
 252                 .max_speed_hz = 6250000,     /* max spi clock (SCK) speed in HZ */
 253                 .bus_num = 0, /* Framework bus number */
 254                 .chip_select = 1, /* Framework chip select. */
 255                 .platform_data = NULL, /* No spi_driver specific config */
 256                 .controller_data = &spi_adc_chip_info,
 257         },
 258 #endif
 259
 260 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
 261         {
 262                 .modalias = "ad1836",
 263                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 264                 .bus_num = 0,
 265                 .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT,
 266                 .controller_data = &ad1836_spi_chip_info,
 267         },
 268 #endif
 269
 270 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 271         {
 272                 .modalias = "spidev",
 273                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 274                 .bus_num = 0,
 275                 .chip_select = 1,
 276                 .controller_data = &spidev_chip_info,
 277         },
 278 #endif
 279 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 280         {
 281                 .modalias = "mmc_spi",
 282                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 283                 .bus_num = 0,
 284                 .chip_select = 4,
 285                 .platform_data = &bfin_mmc_spi_pdata,
 286                 .controller_data = &mmc_spi_chip_info,
 287                 .mode = SPI_MODE_3,
 288         },
 289 #endif
 290 };
 291
 292 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 293 /* SPI (0) */
 294 static struct resource bfin_spi0_resource[] = {
 295         [0] = {
 296                 .start = SPI0_REGBASE,
 297                 .end   = SPI0_REGBASE + 0xFF,
 298                 .flags = IORESOURCE_MEM,
 299         },
 300         [1] = {
 301                 .start = CH_SPI,
 302                 .end   = CH_SPI,
 303                 .flags = IORESOURCE_DMA,
 304         },
 305         [2] = {
 306                 .start = IRQ_SPI,
 307                 .end   = IRQ_SPI,
 308                 .flags = IORESOURCE_IRQ,
 309         }
 310 };
 311
 312 /* SPI controller data */
 313 static struct bfin5xx_spi_master bfin_spi0_info = {
 314         .num_chipselect = 8,
 315         .enable_dma = 1,  /* master has the ability to do dma transfer */
 316         .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
 317 };
 318
 319 static struct platform_device bfin_spi0_device = {
 320         .name = "bfin-spi",
 321         .id = 0, /* Bus number */
 322         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 323         .resource = bfin_spi0_resource,
 324         .dev = {
 325                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 326         },
 327 };
 328 #endif  /* spi master and devices */
 329
 330 #if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE)
 331 static struct platform_device bfin_fb_device = {
 332         .name = "bf537-fb",
 333 };
 334 #endif
 335
 336 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 337 static struct resource bfin_uart_resources[] = {
 338         {
 339                 .start = 0xFFC00400,
 340                 .end = 0xFFC004FF,
 341                 .flags = IORESOURCE_MEM,
 342         },
 343 };
 344
 345 static struct platform_device bfin_uart_device = {
 346         .name = "bfin-uart",
 347         .id = 1,
 348         .num_resources = ARRAY_SIZE(bfin_uart_resources),
 349         .resource = bfin_uart_resources,
 350 };
 351 #endif
 352
 353 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 354 #ifdef CONFIG_BFIN_SIR0
 355 static struct resource bfin_sir0_resources[] = {
 356         {
 357                 .start = 0xFFC00400,
 358                 .end = 0xFFC004FF,
 359                 .flags = IORESOURCE_MEM,
 360         },
 361         {
 362                 .start = IRQ_UART0_RX,
 363                 .end = IRQ_UART0_RX+1,
 364                 .flags = IORESOURCE_IRQ,
 365         },
 366         {
 367                 .start = CH_UART0_RX,
 368                 .end = CH_UART0_RX+1,
 369                 .flags = IORESOURCE_DMA,
 370         },
 371 };
 372
 373 static struct platform_device bfin_sir0_device = {
 374         .name = "bfin_sir",
 375         .id = 0,
 376         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 377         .resource = bfin_sir0_resources,
 378 };
 379 #endif
 380 #endif
 381
 382 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 383 static struct platform_device bfin_sport0_uart_device = {
 384         .name = "bfin-sport-uart",
 385         .id = 0,
 386 };
 387
 388 static struct platform_device bfin_sport1_uart_device = {
 389         .name = "bfin-sport-uart",
 390         .id = 1,
 391 };
 392 #endif
 393
 394 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 395 #include <linux/input.h>
 396 #include <linux/gpio_keys.h>
 397
 398 static struct gpio_keys_button bfin_gpio_keys_table[] = {
 399         {BTN_0, GPIO_PF5, 0, "gpio-keys: BTN0"},
 400         {BTN_1, GPIO_PF6, 0, "gpio-keys: BTN1"},
 401         {BTN_2, GPIO_PF8, 0, "gpio-keys: BTN2"},
 402 };
 403
 404 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
 405         .buttons        = bfin_gpio_keys_table,
 406         .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
 407 };
 408
 409 static struct platform_device bfin_device_gpiokeys = {
 410         .name      = "gpio-keys",
 411         .dev = {
 412                 .platform_data = &bfin_gpio_keys_data,
 413         },
 414 };
 415 #endif
 416
 417 static struct resource bfin_gpios_resources = {
 418         .start = 0,
 419         .end   = MAX_BLACKFIN_GPIOS - 1,
 420         .flags = IORESOURCE_IRQ,
 421 };
 422
 423 static struct platform_device bfin_gpios_device = {
 424         .name = "simple-gpio",
 425         .id = -1,
 426         .num_resources = 1,
 427         .resource = &bfin_gpios_resources,
 428 };
 429
 430 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 431 #include <linux/i2c-gpio.h>
 432
 433 static struct i2c_gpio_platform_data i2c_gpio_data = {
 434         .sda_pin                = 2,
 435         .scl_pin                = 3,
 436         .sda_is_open_drain      = 0,
 437         .scl_is_open_drain      = 0,
 438         .udelay                 = 40,
 439 };
 440
 441 static struct platform_device i2c_gpio_device = {
 442         .name           = "i2c-gpio",
 443         .id             = 0,
 444         .dev            = {
 445                 .platform_data  = &i2c_gpio_data,
 446         },
 447 };
 448 #endif
 449
 450 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 451 #if defined(CONFIG_JOYSTICK_AD7142) || defined(CONFIG_JOYSTICK_AD7142_MODULE)
 452         {
 453                 I2C_BOARD_INFO("ad7142_joystick", 0x2C),
 454                 .irq = 39,
 455         },
 456 #endif
 457 #if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
 458         {
 459                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
 460         },
 461 #endif
 462 #if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
 463         {
 464                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
 465                 .irq = 39,
 466         },
 467 #endif
 468 };
 469
 470 static const unsigned int cclk_vlev_datasheet[] =
 471 {
 472         VRPAIR(VLEV_085, 250000000),
 473         VRPAIR(VLEV_090, 376000000),
 474         VRPAIR(VLEV_095, 426000000),
 475         VRPAIR(VLEV_100, 426000000),
 476         VRPAIR(VLEV_105, 476000000),
 477         VRPAIR(VLEV_110, 476000000),
 478         VRPAIR(VLEV_115, 476000000),
 479         VRPAIR(VLEV_120, 600000000),
 480         VRPAIR(VLEV_125, 600000000),
 481         VRPAIR(VLEV_130, 600000000),
 482 };
 483
 484 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 485         .tuple_tab = cclk_vlev_datasheet,
 486         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 487         .vr_settling_time = 25 /* us */,
 488 };
 489
 490 static struct platform_device bfin_dpmc = {
 491         .name = "bfin dpmc",
 492         .dev = {
 493                 .platform_data = &bfin_dmpc_vreg_data,
 494         },
 495 };
 496
 497 static struct platform_device *stamp_devices[] __initdata = {
 498
 499         &bfin_dpmc,
 500
 501 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 502         &rtc_device,
 503 #endif
 504
 505 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 506         &smc91x_device,
 507 #endif
 508
 509 #if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
 510         &bfin_fb_adv7393_device,
 511 #endif
 512
 513 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 514         &net2272_bfin_device,
 515 #endif
 516
 517 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 518         &bfin_spi0_device,
 519 #endif
 520
 521 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 522         &bfin_uart_device,
 523 #endif
 524
 525 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 526 #ifdef CONFIG_BFIN_SIR0
 527         &bfin_sir0_device,
 528 #endif
 529 #endif
 530
 531 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 532         &bfin_sport0_uart_device,
 533         &bfin_sport1_uart_device,
 534 #endif
 535
 536 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 537         &bfin_device_gpiokeys,
 538 #endif
 539
 540 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 541         &i2c_gpio_device,
 542 #endif
 543
 544         &bfin_gpios_device,
 545
 546 #if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 547         &stamp_flash_device,
 548 #endif
 549 };
 550
 551 static int __init stamp_init(void)
 552 {
 553         int ret;
 554
 555         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 556
 557         i2c_register_board_info(0, bfin_i2c_board_info,
 558                                 ARRAY_SIZE(bfin_i2c_board_info));
 559
 560         ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 561         if (ret < 0)
 562                 return ret;
 563
 564 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 565         /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 566         bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
 567         bfin_write_FIO_FLAG_S(PF0);
 568         SSYNC();
 569 #endif
 570
 571         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 572         return 0;
 573 }
 574
 575 arch_initcall(stamp_init);
 576
 577 void native_machine_restart(char *cmd)
 578 {
 579         /* workaround pull up on cpld / flash pin not being strong enough */
 580         bfin_write_FIO_INEN(~PF0);
 581         bfin_write_FIO_DIR(PF0);
 582         bfin_write_FIO_FLAG_C(PF0);
 583 }