release/src-rt-6.x.4708/linux/linux-2.6.36/arch/blackfin/mach-bf533/boards/blackstamp.c

   1 /*
   2  * Board Info File for the BlackStamp
   3  *
   4  * Copyright 2004-2008 Analog Devices Inc.
   5  *                2008 Benjamin Matthews <bmat@lle.rochester.edu>
   6  *                2005 National ICT Australia (NICTA)
   7  *                      Aidan Williams <aidan@nicta.com.au>
   8  *
   9  * More info about the BlackStamp at:
  10  *      http://blackfin.uclinux.org/gf/project/blackstamp/
  11  *
  12  * Licensed under the GPL-2 or later.
  13  */
  14
  15 #include <linux/device.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/partitions.h>
  19 #include <linux/mtd/physmap.h>
  20 #include <linux/spi/spi.h>
  21 #include <linux/spi/flash.h>
  22 #include <linux/irq.h>
  23 #include <linux/i2c.h>
  24 #include <asm/dma.h>
  25 #include <asm/bfin5xx_spi.h>
  26 #include <asm/portmux.h>
  27 #include <asm/dpmc.h>
  28
  29 /*
  30  * Name the Board for the /proc/cpuinfo
  31  */
  32 const char bfin_board_name[] = "BlackStamp";
  33
  34 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
  35 static struct platform_device rtc_device = {
  36         .name = "rtc-bfin",
  37         .id   = -1,
  38 };
  39 #endif
  40
  41 /*
  42  *  Driver needs to know address, irq and flag pin.
  43  */
  44 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
  45 #include <linux/smc91x.h>
  46
  47 static struct smc91x_platdata smc91x_info = {
  48         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  49         .leda = RPC_LED_100_10,
  50         .ledb = RPC_LED_TX_RX,
  51 };
  52
  53 static struct resource smc91x_resources[] = {
  54         {
  55                 .name = "smc91x-regs",
  56                 .start = 0x20300300,
  57                 .end = 0x20300300 + 16,
  58                 .flags = IORESOURCE_MEM,
  59         }, {
  60                 .start = IRQ_PF3,
  61                 .end = IRQ_PF3,
  62                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  63         },
  64 };
  65
  66 static struct platform_device smc91x_device = {
  67         .name = "smc91x",
  68         .id = 0,
  69         .num_resources = ARRAY_SIZE(smc91x_resources),
  70         .resource = smc91x_resources,
  71         .dev    = {
  72                 .platform_data  = &smc91x_info,
  73         },
  74 };
  75 #endif
  76
  77 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
  78 static struct mtd_partition bfin_spi_flash_partitions[] = {
  79         {
  80                 .name = "bootloader(spi)",
  81                 .size = 0x00040000,
  82                 .offset = 0,
  83                 .mask_flags = MTD_CAP_ROM
  84         }, {
  85                 .name = "linux kernel(spi)",
  86                 .size = 0x180000,
  87                 .offset = MTDPART_OFS_APPEND,
  88         }, {
  89                 .name = "file system(spi)",
  90                 .size = MTDPART_SIZ_FULL,
  91                 .offset = MTDPART_OFS_APPEND,
  92         }
  93 };
  94
  95 static struct flash_platform_data bfin_spi_flash_data = {
  96         .name = "m25p80",
  97         .parts = bfin_spi_flash_partitions,
  98         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
  99         .type = "m25p64",
 100 };
 101
 102 /* SPI flash chip (m25p64) */
 103 static struct bfin5xx_spi_chip spi_flash_chip_info = {
 104         .enable_dma = 0,         /* use dma transfer with this chip*/
 105         .bits_per_word = 8,
 106 };
 107 #endif
 108
 109 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 110 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
 111         .enable_dma = 0,
 112         .bits_per_word = 8,
 113 };
 114 #endif
 115
 116 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 117 static struct bfin5xx_spi_chip spidev_chip_info = {
 118         .enable_dma = 0,
 119         .bits_per_word = 8,
 120 };
 121 #endif
 122
 123 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 124 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 125         {
 126                 /* the modalias must be the same as spi device driver name */
 127                 .modalias = "m25p80", /* Name of spi_driver for this device */
 128                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 129                 .bus_num = 0, /* Framework bus number */
 130                 .chip_select = 2, /* Framework chip select. */
 131                 .platform_data = &bfin_spi_flash_data,
 132                 .controller_data = &spi_flash_chip_info,
 133                 .mode = SPI_MODE_3,
 134         },
 135 #endif
 136
 137 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 138         {
 139                 .modalias = "mmc_spi",
 140                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 141                 .bus_num = 0,
 142                 .chip_select = 5,
 143                 .controller_data = &mmc_spi_chip_info,
 144                 .mode = SPI_MODE_3,
 145         },
 146 #endif
 147
 148 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 149         {
 150                 .modalias = "spidev",
 151                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 152                 .bus_num = 0,
 153                 .chip_select = 7,
 154                 .controller_data = &spidev_chip_info,
 155         },
 156 #endif
 157 };
 158
 159 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 160 /* SPI (0) */
 161 static struct resource bfin_spi0_resource[] = {
 162         [0] = {
 163                 .start = SPI0_REGBASE,
 164                 .end   = SPI0_REGBASE + 0xFF,
 165                 .flags = IORESOURCE_MEM,
 166         },
 167         [1] = {
 168                 .start = CH_SPI,
 169                 .end   = CH_SPI,
 170                 .flags = IORESOURCE_DMA,
 171         },
 172         [2] = {
 173                 .start = IRQ_SPI,
 174                 .end   = IRQ_SPI,
 175                 .flags = IORESOURCE_IRQ,
 176         }
 177 };
 178
 179 /* SPI controller data */
 180 static struct bfin5xx_spi_master bfin_spi0_info = {
 181         .num_chipselect = 8,
 182         .enable_dma = 1,  /* master has the ability to do dma transfer */
 183         .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
 184 };
 185
 186 static struct platform_device bfin_spi0_device = {
 187         .name = "bfin-spi",
 188         .id = 0, /* Bus number */
 189         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 190         .resource = bfin_spi0_resource,
 191         .dev = {
 192                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 193         },
 194 };
 195 #endif  /* spi master and devices */
 196
 197 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 198 #ifdef CONFIG_SERIAL_BFIN_UART0
 199 static struct resource bfin_uart0_resources[] = {
 200         {
 201                 .start = BFIN_UART_THR,
 202                 .end = BFIN_UART_GCTL+2,
 203                 .flags = IORESOURCE_MEM,
 204         },
 205         {
 206                 .start = IRQ_UART0_RX,
 207                 .end = IRQ_UART0_RX + 1,
 208                 .flags = IORESOURCE_IRQ,
 209         },
 210         {
 211                 .start = IRQ_UART0_ERROR,
 212                 .end = IRQ_UART0_ERROR,
 213                 .flags = IORESOURCE_IRQ,
 214         },
 215         {
 216                 .start = CH_UART0_TX,
 217                 .end = CH_UART0_TX,
 218                 .flags = IORESOURCE_DMA,
 219         },
 220         {
 221                 .start = CH_UART0_RX,
 222                 .end = CH_UART0_RX,
 223                 .flags = IORESOURCE_DMA,
 224         },
 225 };
 226
 227 unsigned short bfin_uart0_peripherals[] = {
 228         P_UART0_TX, P_UART0_RX, 0
 229 };
 230
 231 static struct platform_device bfin_uart0_device = {
 232         .name = "bfin-uart",
 233         .id = 0,
 234         .num_resources = ARRAY_SIZE(bfin_uart0_resources),
 235         .resource = bfin_uart0_resources,
 236         .dev = {
 237                 .platform_data = &bfin_uart0_peripherals, /* Passed to driver */
 238         },
 239 };
 240 #endif
 241 #endif
 242
 243 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 244 #ifdef CONFIG_BFIN_SIR0
 245 static struct resource bfin_sir0_resources[] = {
 246         {
 247                 .start = 0xFFC00400,
 248                 .end = 0xFFC004FF,
 249                 .flags = IORESOURCE_MEM,
 250         },
 251         {
 252                 .start = IRQ_UART0_RX,
 253                 .end = IRQ_UART0_RX+1,
 254                 .flags = IORESOURCE_IRQ,
 255         },
 256         {
 257                 .start = CH_UART0_RX,
 258                 .end = CH_UART0_RX+1,
 259                 .flags = IORESOURCE_DMA,
 260         },
 261 };
 262
 263 static struct platform_device bfin_sir0_device = {
 264         .name = "bfin_sir",
 265         .id = 0,
 266         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 267         .resource = bfin_sir0_resources,
 268 };
 269 #endif
 270 #endif
 271
 272 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 273 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 274 static struct resource bfin_sport0_uart_resources[] = {
 275         {
 276                 .start = SPORT0_TCR1,
 277                 .end = SPORT0_MRCS3+4,
 278                 .flags = IORESOURCE_MEM,
 279         },
 280         {
 281                 .start = IRQ_SPORT0_RX,
 282                 .end = IRQ_SPORT0_RX+1,
 283                 .flags = IORESOURCE_IRQ,
 284         },
 285         {
 286                 .start = IRQ_SPORT0_ERROR,
 287                 .end = IRQ_SPORT0_ERROR,
 288                 .flags = IORESOURCE_IRQ,
 289         },
 290 };
 291
 292 unsigned short bfin_sport0_peripherals[] = {
 293         P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
 294         P_SPORT0_DRPRI, P_SPORT0_RSCLK, P_SPORT0_DRSEC, P_SPORT0_DTSEC, 0
 295 };
 296
 297 static struct platform_device bfin_sport0_uart_device = {
 298         .name = "bfin-sport-uart",
 299         .id = 0,
 300         .num_resources = ARRAY_SIZE(bfin_sport0_uart_resources),
 301         .resource = bfin_sport0_uart_resources,
 302         .dev = {
 303                 .platform_data = &bfin_sport0_peripherals, /* Passed to driver */
 304         },
 305 };
 306 #endif
 307 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 308 static struct resource bfin_sport1_uart_resources[] = {
 309         {
 310                 .start = SPORT1_TCR1,
 311                 .end = SPORT1_MRCS3+4,
 312                 .flags = IORESOURCE_MEM,
 313         },
 314         {
 315                 .start = IRQ_SPORT1_RX,
 316                 .end = IRQ_SPORT1_RX+1,
 317                 .flags = IORESOURCE_IRQ,
 318         },
 319         {
 320                 .start = IRQ_SPORT1_ERROR,
 321                 .end = IRQ_SPORT1_ERROR,
 322                 .flags = IORESOURCE_IRQ,
 323         },
 324 };
 325
 326 unsigned short bfin_sport1_peripherals[] = {
 327         P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS,
 328         P_SPORT1_DRPRI, P_SPORT1_RSCLK, P_SPORT1_DRSEC, P_SPORT1_DTSEC, 0
 329 };
 330
 331 static struct platform_device bfin_sport1_uart_device = {
 332         .name = "bfin-sport-uart",
 333         .id = 1,
 334         .num_resources = ARRAY_SIZE(bfin_sport1_uart_resources),
 335         .resource = bfin_sport1_uart_resources,
 336         .dev = {
 337                 .platform_data = &bfin_sport1_peripherals, /* Passed to driver */
 338         },
 339 };
 340 #endif
 341 #endif
 342
 343 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 344 #include <linux/input.h>
 345 #include <linux/gpio_keys.h>
 346
 347 static struct gpio_keys_button bfin_gpio_keys_table[] = {
 348         {BTN_0, GPIO_PF4, 0, "gpio-keys: BTN0"},
 349         {BTN_1, GPIO_PF5, 0, "gpio-keys: BTN1"},
 350         {BTN_2, GPIO_PF6, 0, "gpio-keys: BTN2"},
 351 }; /* Mapped to the first three PF Test Points */
 352
 353 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
 354         .buttons        = bfin_gpio_keys_table,
 355         .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
 356 };
 357
 358 static struct platform_device bfin_device_gpiokeys = {
 359         .name      = "gpio-keys",
 360         .dev = {
 361                 .platform_data = &bfin_gpio_keys_data,
 362         },
 363 };
 364 #endif
 365
 366 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 367 #include <linux/i2c-gpio.h>
 368
 369 static struct i2c_gpio_platform_data i2c_gpio_data = {
 370         .sda_pin                = 8,
 371         .scl_pin                = 9,
 372         .sda_is_open_drain      = 0,
 373         .scl_is_open_drain      = 0,
 374         .udelay                 = 40,
 375 }; /* This hasn't actually been used these pins
 376     * are (currently) free pins on the expansion connector */
 377
 378 static struct platform_device i2c_gpio_device = {
 379         .name           = "i2c-gpio",
 380         .id             = 0,
 381         .dev            = {
 382                 .platform_data  = &i2c_gpio_data,
 383         },
 384 };
 385 #endif
 386
 387 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 388 };
 389
 390 static const unsigned int cclk_vlev_datasheet[] =
 391 {
 392         VRPAIR(VLEV_085, 250000000),
 393         VRPAIR(VLEV_090, 376000000),
 394         VRPAIR(VLEV_095, 426000000),
 395         VRPAIR(VLEV_100, 426000000),
 396         VRPAIR(VLEV_105, 476000000),
 397         VRPAIR(VLEV_110, 476000000),
 398         VRPAIR(VLEV_115, 476000000),
 399         VRPAIR(VLEV_120, 600000000),
 400         VRPAIR(VLEV_125, 600000000),
 401         VRPAIR(VLEV_130, 600000000),
 402 };
 403
 404 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 405         .tuple_tab = cclk_vlev_datasheet,
 406         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 407         .vr_settling_time = 25 /* us */,
 408 };
 409
 410 static struct platform_device bfin_dpmc = {
 411         .name = "bfin dpmc",
 412         .dev = {
 413                 .platform_data = &bfin_dmpc_vreg_data,
 414         },
 415 };
 416
 417 static struct platform_device *stamp_devices[] __initdata = {
 418
 419         &bfin_dpmc,
 420
 421 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 422         &rtc_device,
 423 #endif
 424
 425 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 426         &smc91x_device,
 427 #endif
 428
 429
 430 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 431         &bfin_spi0_device,
 432 #endif
 433
 434 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 435 #ifdef CONFIG_SERIAL_BFIN_UART0
 436         &bfin_uart0_device,
 437 #endif
 438 #endif
 439
 440 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 441 #ifdef CONFIG_BFIN_SIR0
 442         &bfin_sir0_device,
 443 #endif
 444 #endif
 445
 446 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 447 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 448         &bfin_sport0_uart_device,
 449 #endif
 450 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 451         &bfin_sport1_uart_device,
 452 #endif
 453 #endif
 454
 455 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 456         &bfin_device_gpiokeys,
 457 #endif
 458
 459 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 460         &i2c_gpio_device,
 461 #endif
 462 };
 463
 464 static int __init blackstamp_init(void)
 465 {
 466         int ret;
 467
 468         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 469
 470         i2c_register_board_info(0, bfin_i2c_board_info,
 471                                 ARRAY_SIZE(bfin_i2c_board_info));
 472
 473         ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 474         if (ret < 0)
 475                 return ret;
 476
 477 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 478         /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 479         bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
 480         bfin_write_FIO_FLAG_S(PF0);
 481         SSYNC();
 482 #endif
 483
 484         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 485         return 0;
 486 }
 487
 488 arch_initcall(blackstamp_init);
 489
 490 static struct platform_device *stamp_early_devices[] __initdata = {
 491 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
 492 #ifdef CONFIG_SERIAL_BFIN_UART0
 493         &bfin_uart0_device,
 494 #endif
 495 #endif
 496
 497 #if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
 498 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 499         &bfin_sport0_uart_device,
 500 #endif
 501 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 502         &bfin_sport1_uart_device,
 503 #endif
 504 #endif
 505 };
 506
 507 void __init native_machine_early_platform_add_devices(void)
 508 {
 509         printk(KERN_INFO "register early platform devices\n");
 510         early_platform_add_devices(stamp_early_devices,
 511                 ARRAY_SIZE(stamp_early_devices));
 512 }