linux/arch/blackfin/mach-bf533/boards/stamp.c
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   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 */
  31const char bfin_board_name[] = "ADI BF533-STAMP";
  32
  33#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
  34static 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
  46static 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
  52static 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
  65static 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)
  77static 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
  89static 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)
  98static 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
 114static struct physmap_flash_data stamp_flash_data = {
 115        .width    = 2,
 116        .parts    = stamp_partitions,
 117        .nr_parts = ARRAY_SIZE(stamp_partitions),
 118};
 119
 120static 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
 136static 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)
 148static 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
 165static 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) */
 173static 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 */
 181static 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)
 188static 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)
 195static 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
 203static 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
 211static void bfin_mmc_spi_exit(struct device *dev, void *data)
 212{
 213        free_irq(MMC_SPI_CARD_DETECT_INT, data);
 214}
 215
 216static 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
 222static 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
 229static 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) */
 288static 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 */
 307static 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
 313static 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)
 325static 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)
 331static struct resource bfin_uart_resources[] = {
 332        {
 333                .start = 0xFFC00400,
 334                .end = 0xFFC004FF,
 335                .flags = IORESOURCE_MEM,
 336        },
 337};
 338
 339static 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
 349static 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
 367static 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)
 377static struct platform_device bfin_sport0_uart_device = {
 378        .name = "bfin-sport-uart",
 379        .id = 0,
 380};
 381
 382static 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
 392static 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
 398static 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
 403static 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#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 412#include <linux/i2c-gpio.h>
 413
 414static struct i2c_gpio_platform_data i2c_gpio_data = {
 415        .sda_pin                = 2,
 416        .scl_pin                = 3,
 417        .sda_is_open_drain      = 0,
 418        .scl_is_open_drain      = 0,
 419        .udelay                 = 40,
 420};
 421
 422static struct platform_device i2c_gpio_device = {
 423        .name           = "i2c-gpio",
 424        .id             = 0,
 425        .dev            = {
 426                .platform_data  = &i2c_gpio_data,
 427        },
 428};
 429#endif
 430
 431static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 432#if defined(CONFIG_JOYSTICK_AD7142) || defined(CONFIG_JOYSTICK_AD7142_MODULE)
 433        {
 434                I2C_BOARD_INFO("ad7142_joystick", 0x2C),
 435                .irq = 39,
 436        },
 437#endif
 438#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
 439        {
 440                I2C_BOARD_INFO("pcf8574_lcd", 0x22),
 441        },
 442#endif
 443#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
 444        {
 445                I2C_BOARD_INFO("pcf8574_keypad", 0x27),
 446                .irq = 39,
 447        },
 448#endif
 449#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
 450        {
 451                I2C_BOARD_INFO("bfin-adv7393", 0x2B),
 452        },
 453#endif
 454};
 455
 456static const unsigned int cclk_vlev_datasheet[] =
 457{
 458        VRPAIR(VLEV_085, 250000000),
 459        VRPAIR(VLEV_090, 376000000),
 460        VRPAIR(VLEV_095, 426000000),
 461        VRPAIR(VLEV_100, 426000000),
 462        VRPAIR(VLEV_105, 476000000),
 463        VRPAIR(VLEV_110, 476000000),
 464        VRPAIR(VLEV_115, 476000000),
 465        VRPAIR(VLEV_120, 600000000),
 466        VRPAIR(VLEV_125, 600000000),
 467        VRPAIR(VLEV_130, 600000000),
 468};
 469
 470static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 471        .tuple_tab = cclk_vlev_datasheet,
 472        .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 473        .vr_settling_time = 25 /* us */,
 474};
 475
 476static struct platform_device bfin_dpmc = {
 477        .name = "bfin dpmc",
 478        .dev = {
 479                .platform_data = &bfin_dmpc_vreg_data,
 480        },
 481};
 482
 483static struct platform_device *stamp_devices[] __initdata = {
 484
 485        &bfin_dpmc,
 486
 487#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 488        &rtc_device,
 489#endif
 490
 491#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 492        &smc91x_device,
 493#endif
 494
 495#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 496        &net2272_bfin_device,
 497#endif
 498
 499#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 500        &bfin_spi0_device,
 501#endif
 502
 503#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 504        &bfin_uart_device,
 505#endif
 506
 507#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 508#ifdef CONFIG_BFIN_SIR0
 509        &bfin_sir0_device,
 510#endif
 511#endif
 512
 513#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 514        &bfin_sport0_uart_device,
 515        &bfin_sport1_uart_device,
 516#endif
 517
 518#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 519        &bfin_device_gpiokeys,
 520#endif
 521
 522#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 523        &i2c_gpio_device,
 524#endif
 525
 526#if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 527        &stamp_flash_device,
 528#endif
 529};
 530
 531static int __init stamp_init(void)
 532{
 533        int ret;
 534
 535        printk(KERN_INFO "%s(): registering device resources\n", __func__);
 536
 537        i2c_register_board_info(0, bfin_i2c_board_info,
 538                                ARRAY_SIZE(bfin_i2c_board_info));
 539
 540        ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 541        if (ret < 0)
 542                return ret;
 543
 544#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 545        /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 546        bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
 547        bfin_write_FIO_FLAG_S(PF0);
 548        SSYNC();
 549#endif
 550
 551        spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 552        return 0;
 553}
 554
 555arch_initcall(stamp_init);
 556
 557void native_machine_restart(char *cmd)
 558{
 559        /* workaround pull up on cpld / flash pin not being strong enough */
 560        bfin_write_FIO_INEN(~PF0);
 561        bfin_write_FIO_DIR(PF0);
 562        bfin_write_FIO_FLAG_C(PF0);
 563}
 564