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_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
  77 static struct resource net2272_bfin_resources[] = {
  78         {
  79                 .start = 0x20300000,
  80                 .end = 0x20300000 + 0x100,
  81                 .flags = IORESOURCE_MEM,
  82         }, {
  83                 .start = IRQ_PF10,
  84                 .end = IRQ_PF10,
  85                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  86         },
  87 };
  88
  89 static struct platform_device net2272_bfin_device = {
  90         .name = "net2272",
  91         .id = -1,
  92         .num_resources = ARRAY_SIZE(net2272_bfin_resources),
  93         .resource = net2272_bfin_resources,
  94 };
  95 #endif
  96
  97 #if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
  98 static struct mtd_partition stamp_partitions[] = {
  99         {
 100                 .name   = "bootloader(nor)",
 101                 .size   = 0x40000,
 102                 .offset = 0,
 103         }, {
 104                 .name   = "linux kernel(nor)",
 105                 .size   = 0x180000,
 106                 .offset = MTDPART_OFS_APPEND,
 107         }, {
 108                 .name   = "file system(nor)",
 109                 .size   = MTDPART_SIZ_FULL,
 110                 .offset = MTDPART_OFS_APPEND,
 111         }
 112 };
 113
 114 static struct physmap_flash_data stamp_flash_data = {
 115         .width    = 2,
 116         .parts    = stamp_partitions,
 117         .nr_parts = ARRAY_SIZE(stamp_partitions),
 118 };
 119
 120 static struct resource stamp_flash_resource[] = {
 121         {
 122                 .name  = "cfi_probe",
 123                 .start = 0x20000000,
 124                 .end   = 0x203fffff,
 125                 .flags = IORESOURCE_MEM,
 126         }, {
 127                 .start = 0x7BB07BB0,    /* AMBCTL0 setting when accessing flash */
 128                 .end   = 0x7BB07BB0,    /* AMBCTL1 setting when accessing flash */
 129                 .flags = IORESOURCE_MEM,
 130         }, {
 131                 .start = GPIO_PF0,
 132                 .flags = IORESOURCE_IRQ,
 133         }
 134 };
 135
 136 static struct platform_device stamp_flash_device = {
 137         .name          = "bfin-async-flash",
 138         .id            = 0,
 139         .dev = {
 140                 .platform_data = &stamp_flash_data,
 141         },
 142         .num_resources = ARRAY_SIZE(stamp_flash_resource),
 143         .resource      = stamp_flash_resource,
 144 };
 145 #endif
 146
 147 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 148 static struct mtd_partition bfin_spi_flash_partitions[] = {
 149         {
 150                 .name = "bootloader(spi)",
 151                 .size = 0x00040000,
 152                 .offset = 0,
 153                 .mask_flags = MTD_CAP_ROM
 154         }, {
 155                 .name = "linux kernel(spi)",
 156                 .size = 0x180000,
 157                 .offset = MTDPART_OFS_APPEND,
 158         }, {
 159                 .name = "file system(spi)",
 160                 .size = MTDPART_SIZ_FULL,
 161                 .offset = MTDPART_OFS_APPEND,
 162         }
 163 };
 164
 165 static struct flash_platform_data bfin_spi_flash_data = {
 166         .name = "m25p80",
 167         .parts = bfin_spi_flash_partitions,
 168         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
 169         .type = "m25p64",
 170 };
 171
 172 /* SPI flash chip (m25p64) */
 173 static struct bfin5xx_spi_chip spi_flash_chip_info = {
 174         .enable_dma = 0,         /* use dma transfer with this chip*/
 175         .bits_per_word = 8,
 176 };
 177 #endif
 178
 179 #if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
 180 /* SPI ADC chip */
 181 static struct bfin5xx_spi_chip spi_adc_chip_info = {
 182         .enable_dma = 1,         /* use dma transfer with this chip*/
 183         .bits_per_word = 16,
 184 };
 185 #endif
 186
 187 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
 188 static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
 189         .enable_dma = 0,
 190         .bits_per_word = 16,
 191 };
 192 #endif
 193
 194 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 195 static struct bfin5xx_spi_chip spidev_chip_info = {
 196         .enable_dma = 0,
 197         .bits_per_word = 8,
 198 };
 199 #endif
 200
 201 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 202 #define MMC_SPI_CARD_DETECT_INT IRQ_PF5
 203 static int bfin_mmc_spi_init(struct device *dev,
 204         irqreturn_t (*detect_int)(int, void *), void *data)
 205 {
 206         return request_irq(MMC_SPI_CARD_DETECT_INT, detect_int,
 207                 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 208                 "mmc-spi-detect", data);
 209 }
 210
 211 static void bfin_mmc_spi_exit(struct device *dev, void *data)
 212 {
 213         free_irq(MMC_SPI_CARD_DETECT_INT, data);
 214 }
 215
 216 static struct mmc_spi_platform_data bfin_mmc_spi_pdata = {
 217         .init = bfin_mmc_spi_init,
 218         .exit = bfin_mmc_spi_exit,
 219         .detect_delay = 100, /* msecs */
 220 };
 221
 222 static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
 223         .enable_dma = 0,
 224         .bits_per_word = 8,
 225         .pio_interrupt = 0,
 226 };
 227 #endif
 228
 229 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 230 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 231         {
 232                 /* the modalias must be the same as spi device driver name */
 233                 .modalias = "m25p80", /* Name of spi_driver for this device */
 234                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
 235                 .bus_num = 0, /* Framework bus number */
 236                 .chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL2*/
 237                 .platform_data = &bfin_spi_flash_data,
 238                 .controller_data = &spi_flash_chip_info,
 239                 .mode = SPI_MODE_3,
 240         },
 241 #endif
 242
 243 #if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
 244         {
 245                 .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */
 246                 .max_speed_hz = 6250000,     /* max spi clock (SCK) speed in HZ */
 247                 .bus_num = 0, /* Framework bus number */
 248                 .chip_select = 1, /* Framework chip select. */
 249                 .platform_data = NULL, /* No spi_driver specific config */
 250                 .controller_data = &spi_adc_chip_info,
 251         },
 252 #endif
 253
 254 #if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
 255         {
 256                 .modalias = "ad1836",
 257                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 258                 .bus_num = 0,
 259                 .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT,
 260                 .controller_data = &ad1836_spi_chip_info,
 261         },
 262 #endif
 263
 264 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 265         {
 266                 .modalias = "spidev",
 267                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 268                 .bus_num = 0,
 269                 .chip_select = 1,
 270                 .controller_data = &spidev_chip_info,
 271         },
 272 #endif
 273 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 274         {
 275                 .modalias = "mmc_spi",
 276                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 277                 .bus_num = 0,
 278                 .chip_select = 4,
 279                 .platform_data = &bfin_mmc_spi_pdata,
 280                 .controller_data = &mmc_spi_chip_info,
 281                 .mode = SPI_MODE_3,
 282         },
 283 #endif
 284 };
 285
 286 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 287 /* SPI (0) */
 288 static struct resource bfin_spi0_resource[] = {
 289         [0] = {
 290                 .start = SPI0_REGBASE,
 291                 .end   = SPI0_REGBASE + 0xFF,
 292                 .flags = IORESOURCE_MEM,
 293         },
 294         [1] = {
 295                 .start = CH_SPI,
 296                 .end   = CH_SPI,
 297                 .flags = IORESOURCE_DMA,
 298         },
 299         [2] = {
 300                 .start = IRQ_SPI,
 301                 .end   = IRQ_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_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 325 static struct resource bfin_uart_resources[] = {
 326         {
 327                 .start = 0xFFC00400,
 328                 .end = 0xFFC004FF,
 329                 .flags = IORESOURCE_MEM,
 330         },
 331 };
 332
 333 static struct platform_device bfin_uart_device = {
 334         .name = "bfin-uart",
 335         .id = 1,
 336         .num_resources = ARRAY_SIZE(bfin_uart_resources),
 337         .resource = bfin_uart_resources,
 338 };
 339 #endif
 340
 341 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 342 #ifdef CONFIG_BFIN_SIR0
 343 static struct resource bfin_sir0_resources[] = {
 344         {
 345                 .start = 0xFFC00400,
 346                 .end = 0xFFC004FF,
 347                 .flags = IORESOURCE_MEM,
 348         },
 349         {
 350                 .start = IRQ_UART0_RX,
 351                 .end = IRQ_UART0_RX+1,
 352                 .flags = IORESOURCE_IRQ,
 353         },
 354         {
 355                 .start = CH_UART0_RX,
 356                 .end = CH_UART0_RX+1,
 357                 .flags = IORESOURCE_DMA,
 358         },
 359 };
 360
 361 static struct platform_device bfin_sir0_device = {
 362         .name = "bfin_sir",
 363         .id = 0,
 364         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 365         .resource = bfin_sir0_resources,
 366 };
 367 #endif
 368 #endif
 369
 370 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 371 static struct platform_device bfin_sport0_uart_device = {
 372         .name = "bfin-sport-uart",
 373         .id = 0,
 374 };
 375
 376 static struct platform_device bfin_sport1_uart_device = {
 377         .name = "bfin-sport-uart",
 378         .id = 1,
 379 };
 380 #endif
 381
 382 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 383 #include <linux/input.h>
 384 #include <linux/gpio_keys.h>
 385
 386 static struct gpio_keys_button bfin_gpio_keys_table[] = {
 387         {BTN_0, GPIO_PF5, 0, "gpio-keys: BTN0"},
 388         {BTN_1, GPIO_PF6, 0, "gpio-keys: BTN1"},
 389         {BTN_2, GPIO_PF8, 0, "gpio-keys: BTN2"},
 390 };
 391
 392 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
 393         .buttons        = bfin_gpio_keys_table,
 394         .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
 395 };
 396
 397 static struct platform_device bfin_device_gpiokeys = {
 398         .name      = "gpio-keys",
 399         .dev = {
 400                 .platform_data = &bfin_gpio_keys_data,
 401         },
 402 };
 403 #endif
 404
 405 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 406 #include <linux/i2c-gpio.h>
 407
 408 static struct i2c_gpio_platform_data i2c_gpio_data = {
 409         .sda_pin                = 2,
 410         .scl_pin                = 3,
 411         .sda_is_open_drain      = 0,
 412         .scl_is_open_drain      = 0,
 413         .udelay                 = 40,
 414 };
 415
 416 static struct platform_device i2c_gpio_device = {
 417         .name           = "i2c-gpio",
 418         .id             = 0,
 419         .dev            = {
 420                 .platform_data  = &i2c_gpio_data,
 421         },
 422 };
 423 #endif
 424
 425 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 426 #if defined(CONFIG_JOYSTICK_AD7142) || defined(CONFIG_JOYSTICK_AD7142_MODULE)
 427         {
 428                 I2C_BOARD_INFO("ad7142_joystick", 0x2C),
 429                 .irq = 39,
 430         },
 431 #endif
 432 #if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
 433         {
 434                 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
 435         },
 436 #endif
 437 #if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
 438         {
 439                 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
 440                 .irq = 39,
 441         },
 442 #endif
 443 #if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
 444         {
 445                 I2C_BOARD_INFO("bfin-adv7393", 0x2B),
 446         },
 447 #endif
 448 };
 449
 450 static const unsigned int cclk_vlev_datasheet[] =
 451 {
 452         VRPAIR(VLEV_085, 250000000),
 453         VRPAIR(VLEV_090, 376000000),
 454         VRPAIR(VLEV_095, 426000000),
 455         VRPAIR(VLEV_100, 426000000),
 456         VRPAIR(VLEV_105, 476000000),
 457         VRPAIR(VLEV_110, 476000000),
 458         VRPAIR(VLEV_115, 476000000),
 459         VRPAIR(VLEV_120, 600000000),
 460         VRPAIR(VLEV_125, 600000000),
 461         VRPAIR(VLEV_130, 600000000),
 462 };
 463
 464 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 465         .tuple_tab = cclk_vlev_datasheet,
 466         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 467         .vr_settling_time = 25 /* us */,
 468 };
 469
 470 static struct platform_device bfin_dpmc = {
 471         .name = "bfin dpmc",
 472         .dev = {
 473                 .platform_data = &bfin_dmpc_vreg_data,
 474         },
 475 };
 476
 477 static struct platform_device *stamp_devices[] __initdata = {
 478
 479         &bfin_dpmc,
 480
 481 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 482         &rtc_device,
 483 #endif
 484
 485 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 486         &smc91x_device,
 487 #endif
 488
 489 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 490         &net2272_bfin_device,
 491 #endif
 492
 493 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 494         &bfin_spi0_device,
 495 #endif
 496
 497 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 498         &bfin_uart_device,
 499 #endif
 500
 501 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 502 #ifdef CONFIG_BFIN_SIR0
 503         &bfin_sir0_device,
 504 #endif
 505 #endif
 506
 507 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 508         &bfin_sport0_uart_device,
 509         &bfin_sport1_uart_device,
 510 #endif
 511
 512 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 513         &bfin_device_gpiokeys,
 514 #endif
 515
 516 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 517         &i2c_gpio_device,
 518 #endif
 519
 520 #if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 521         &stamp_flash_device,
 522 #endif
 523 };
 524
 525 static int __init stamp_init(void)
 526 {
 527         int ret;
 528
 529         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 530
 531         i2c_register_board_info(0, bfin_i2c_board_info,
 532                                 ARRAY_SIZE(bfin_i2c_board_info));
 533
 534         ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 535         if (ret < 0)
 536                 return ret;
 537
 538 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 539         /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 540         bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
 541         bfin_write_FIO_FLAG_S(PF0);
 542         SSYNC();
 543 #endif
 544
 545         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 546         return 0;
 547 }
 548
 549 arch_initcall(stamp_init);
 550
 551 void native_machine_restart(char *cmd)
 552 {
 553         /* workaround pull up on cpld / flash pin not being strong enough */
 554         bfin_write_FIO_INEN(~PF0);
 555         bfin_write_FIO_DIR(PF0);
 556         bfin_write_FIO_FLAG_C(PF0);
 557 }