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 #include <mach/fio_flag.h>
  29
  30 /*
  31  * Name the Board for the /proc/cpuinfo
  32  */
  33 const char bfin_board_name[] = "BlackStamp";
  34
  35 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
  36 static struct platform_device rtc_device = {
  37         .name = "rtc-bfin",
  38         .id   = -1,
  39 };
  40 #endif
  41
  42 /*
  43  *  Driver needs to know address, irq and flag pin.
  44  */
  45 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
  46 #include <linux/smc91x.h>
  47
  48 static struct smc91x_platdata smc91x_info = {
  49         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  50         .leda = RPC_LED_100_10,
  51         .ledb = RPC_LED_TX_RX,
  52 };
  53
  54 static struct resource smc91x_resources[] = {
  55         {
  56                 .name = "smc91x-regs",
  57                 .start = 0x20300300,
  58                 .end = 0x20300300 + 16,
  59                 .flags = IORESOURCE_MEM,
  60         }, {
  61                 .start = IRQ_PF3,
  62                 .end = IRQ_PF3,
  63                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  64         },
  65 };
  66
  67 static struct platform_device smc91x_device = {
  68         .name = "smc91x",
  69         .id = 0,
  70         .num_resources = ARRAY_SIZE(smc91x_resources),
  71         .resource = smc91x_resources,
  72         .dev    = {
  73                 .platform_data  = &smc91x_info,
  74         },
  75 };
  76 #endif
  77
  78 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
  79 static struct mtd_partition bfin_spi_flash_partitions[] = {
  80         {
  81                 .name = "bootloader(spi)",
  82                 .size = 0x00040000,
  83                 .offset = 0,
  84                 .mask_flags = MTD_CAP_ROM
  85         }, {
  86                 .name = "linux kernel(spi)",
  87                 .size = 0x180000,
  88                 .offset = MTDPART_OFS_APPEND,
  89         }, {
  90                 .name = "file system(spi)",
  91                 .size = MTDPART_SIZ_FULL,
  92                 .offset = MTDPART_OFS_APPEND,
  93         }
  94 };
  95
  96 static struct flash_platform_data bfin_spi_flash_data = {
  97         .name = "m25p80",
  98         .parts = bfin_spi_flash_partitions,
  99         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
 100         .type = "m25p64",
 101 };
 102
 103 /* SPI flash chip (m25p64) */
 104 static struct bfin5xx_spi_chip spi_flash_chip_info = {
 105         .enable_dma = 0,         /* use dma transfer with this chip*/
 106         .bits_per_word = 8,
 107 };
 108 #endif
 109
 110 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 111 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
 112         .enable_dma = 0,
 113         .bits_per_word = 8,
 114 };
 115 #endif
 116
 117 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 118 static struct bfin5xx_spi_chip spidev_chip_info = {
 119         .enable_dma = 0,
 120         .bits_per_word = 8,
 121 };
 122 #endif
 123
 124 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 125 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 126         {
 127                 /* the modalias must be the same as spi device driver name */
 128                 .modalias = "m25p80", /* Name of spi_driver for this device */
 129                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 130                 .bus_num = 0, /* Framework bus number */
 131                 .chip_select = 2, /* Framework chip select. */
 132                 .platform_data = &bfin_spi_flash_data,
 133                 .controller_data = &spi_flash_chip_info,
 134                 .mode = SPI_MODE_3,
 135         },
 136 #endif
 137
 138 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 139         {
 140                 .modalias = "mmc_spi",
 141                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 142                 .bus_num = 0,
 143                 .chip_select = 5,
 144                 .controller_data = &mmc_spi_chip_info,
 145                 .mode = SPI_MODE_3,
 146         },
 147 #endif
 148
 149 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 150         {
 151                 .modalias = "spidev",
 152                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 153                 .bus_num = 0,
 154                 .chip_select = 7,
 155                 .controller_data = &spidev_chip_info,
 156         },
 157 #endif
 158 };
 159
 160 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 161 /* SPI (0) */
 162 static struct resource bfin_spi0_resource[] = {
 163         [0] = {
 164                 .start = SPI0_REGBASE,
 165                 .end   = SPI0_REGBASE + 0xFF,
 166                 .flags = IORESOURCE_MEM,
 167         },
 168         [1] = {
 169                 .start = CH_SPI,
 170                 .end   = CH_SPI,
 171                 .flags = IORESOURCE_DMA,
 172         },
 173         [2] = {
 174                 .start = IRQ_SPI,
 175                 .end   = IRQ_SPI,
 176                 .flags = IORESOURCE_IRQ,
 177         }
 178 };
 179
 180 /* SPI controller data */
 181 static struct bfin5xx_spi_master bfin_spi0_info = {
 182         .num_chipselect = 8,
 183         .enable_dma = 1,  /* master has the ability to do dma transfer */
 184         .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
 185 };
 186
 187 static struct platform_device bfin_spi0_device = {
 188         .name = "bfin-spi",
 189         .id = 0, /* Bus number */
 190         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 191         .resource = bfin_spi0_resource,
 192         .dev = {
 193                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 194         },
 195 };
 196 #endif  /* spi master and devices */
 197
 198 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 199 #ifdef CONFIG_SERIAL_BFIN_UART0
 200 static struct resource bfin_uart0_resources[] = {
 201         {
 202                 .start = BFIN_UART_THR,
 203                 .end = BFIN_UART_GCTL+2,
 204                 .flags = IORESOURCE_MEM,
 205         },
 206         {
 207                 .start = IRQ_UART0_RX,
 208                 .end = IRQ_UART0_RX + 1,
 209                 .flags = IORESOURCE_IRQ,
 210         },
 211         {
 212                 .start = IRQ_UART0_ERROR,
 213                 .end = IRQ_UART0_ERROR,
 214                 .flags = IORESOURCE_IRQ,
 215         },
 216         {
 217                 .start = CH_UART0_TX,
 218                 .end = CH_UART0_TX,
 219                 .flags = IORESOURCE_DMA,
 220         },
 221         {
 222                 .start = CH_UART0_RX,
 223                 .end = CH_UART0_RX,
 224                 .flags = IORESOURCE_DMA,
 225         },
 226 };
 227
 228 unsigned short bfin_uart0_peripherals[] = {
 229         P_UART0_TX, P_UART0_RX, 0
 230 };
 231
 232 static struct platform_device bfin_uart0_device = {
 233         .name = "bfin-uart",
 234         .id = 0,
 235         .num_resources = ARRAY_SIZE(bfin_uart0_resources),
 236         .resource = bfin_uart0_resources,
 237         .dev = {
 238                 .platform_data = &bfin_uart0_peripherals, /* Passed to driver */
 239         },
 240 };
 241 #endif
 242 #endif
 243
 244 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 245 #ifdef CONFIG_BFIN_SIR0
 246 static struct resource bfin_sir0_resources[] = {
 247         {
 248                 .start = 0xFFC00400,
 249                 .end = 0xFFC004FF,
 250                 .flags = IORESOURCE_MEM,
 251         },
 252         {
 253                 .start = IRQ_UART0_RX,
 254                 .end = IRQ_UART0_RX+1,
 255                 .flags = IORESOURCE_IRQ,
 256         },
 257         {
 258                 .start = CH_UART0_RX,
 259                 .end = CH_UART0_RX+1,
 260                 .flags = IORESOURCE_DMA,
 261         },
 262 };
 263
 264 static struct platform_device bfin_sir0_device = {
 265         .name = "bfin_sir",
 266         .id = 0,
 267         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 268         .resource = bfin_sir0_resources,
 269 };
 270 #endif
 271 #endif
 272
 273 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 274 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 275 static struct resource bfin_sport0_uart_resources[] = {
 276         {
 277                 .start = SPORT0_TCR1,
 278                 .end = SPORT0_MRCS3+4,
 279                 .flags = IORESOURCE_MEM,
 280         },
 281         {
 282                 .start = IRQ_SPORT0_RX,
 283                 .end = IRQ_SPORT0_RX+1,
 284                 .flags = IORESOURCE_IRQ,
 285         },
 286         {
 287                 .start = IRQ_SPORT0_ERROR,
 288                 .end = IRQ_SPORT0_ERROR,
 289                 .flags = IORESOURCE_IRQ,
 290         },
 291 };
 292
 293 unsigned short bfin_sport0_peripherals[] = {
 294         P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
 295         P_SPORT0_DRPRI, P_SPORT0_RSCLK, P_SPORT0_DRSEC, P_SPORT0_DTSEC, 0
 296 };
 297
 298 static struct platform_device bfin_sport0_uart_device = {
 299         .name = "bfin-sport-uart",
 300         .id = 0,
 301         .num_resources = ARRAY_SIZE(bfin_sport0_uart_resources),
 302         .resource = bfin_sport0_uart_resources,
 303         .dev = {
 304                 .platform_data = &bfin_sport0_peripherals, /* Passed to driver */
 305         },
 306 };
 307 #endif
 308 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 309 static struct resource bfin_sport1_uart_resources[] = {
 310         {
 311                 .start = SPORT1_TCR1,
 312                 .end = SPORT1_MRCS3+4,
 313                 .flags = IORESOURCE_MEM,
 314         },
 315         {
 316                 .start = IRQ_SPORT1_RX,
 317                 .end = IRQ_SPORT1_RX+1,
 318                 .flags = IORESOURCE_IRQ,
 319         },
 320         {
 321                 .start = IRQ_SPORT1_ERROR,
 322                 .end = IRQ_SPORT1_ERROR,
 323                 .flags = IORESOURCE_IRQ,
 324         },
 325 };
 326
 327 unsigned short bfin_sport1_peripherals[] = {
 328         P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS,
 329         P_SPORT1_DRPRI, P_SPORT1_RSCLK, P_SPORT1_DRSEC, P_SPORT1_DTSEC, 0
 330 };
 331
 332 static struct platform_device bfin_sport1_uart_device = {
 333         .name = "bfin-sport-uart",
 334         .id = 1,
 335         .num_resources = ARRAY_SIZE(bfin_sport1_uart_resources),
 336         .resource = bfin_sport1_uart_resources,
 337         .dev = {
 338                 .platform_data = &bfin_sport1_peripherals, /* Passed to driver */
 339         },
 340 };
 341 #endif
 342 #endif
 343
 344 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 345 #include <linux/input.h>
 346 #include <linux/gpio_keys.h>
 347
 348 static struct gpio_keys_button bfin_gpio_keys_table[] = {
 349         {BTN_0, GPIO_PF4, 0, "gpio-keys: BTN0"},
 350         {BTN_1, GPIO_PF5, 0, "gpio-keys: BTN1"},
 351         {BTN_2, GPIO_PF6, 0, "gpio-keys: BTN2"},
 352 }; /* Mapped to the first three PF Test Points */
 353
 354 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
 355         .buttons        = bfin_gpio_keys_table,
 356         .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
 357 };
 358
 359 static struct platform_device bfin_device_gpiokeys = {
 360         .name      = "gpio-keys",
 361         .dev = {
 362                 .platform_data = &bfin_gpio_keys_data,
 363         },
 364 };
 365 #endif
 366
 367 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 368 #include <linux/i2c-gpio.h>
 369
 370 static struct i2c_gpio_platform_data i2c_gpio_data = {
 371         .sda_pin                = 8,
 372         .scl_pin                = 9,
 373         .sda_is_open_drain      = 0,
 374         .scl_is_open_drain      = 0,
 375         .udelay                 = 40,
 376 }; /* This hasn't actually been used these pins
 377     * are (currently) free pins on the expansion connector */
 378
 379 static struct platform_device i2c_gpio_device = {
 380         .name           = "i2c-gpio",
 381         .id             = 0,
 382         .dev            = {
 383                 .platform_data  = &i2c_gpio_data,
 384         },
 385 };
 386 #endif
 387
 388 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 389 };
 390
 391 static const unsigned int cclk_vlev_datasheet[] =
 392 {
 393         VRPAIR(VLEV_085, 250000000),
 394         VRPAIR(VLEV_090, 376000000),
 395         VRPAIR(VLEV_095, 426000000),
 396         VRPAIR(VLEV_100, 426000000),
 397         VRPAIR(VLEV_105, 476000000),
 398         VRPAIR(VLEV_110, 476000000),
 399         VRPAIR(VLEV_115, 476000000),
 400         VRPAIR(VLEV_120, 600000000),
 401         VRPAIR(VLEV_125, 600000000),
 402         VRPAIR(VLEV_130, 600000000),
 403 };
 404
 405 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 406         .tuple_tab = cclk_vlev_datasheet,
 407         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 408         .vr_settling_time = 25 /* us */,
 409 };
 410
 411 static struct platform_device bfin_dpmc = {
 412         .name = "bfin dpmc",
 413         .dev = {
 414                 .platform_data = &bfin_dmpc_vreg_data,
 415         },
 416 };
 417
 418 static struct platform_device *stamp_devices[] __initdata = {
 419
 420         &bfin_dpmc,
 421
 422 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 423         &rtc_device,
 424 #endif
 425
 426 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 427         &smc91x_device,
 428 #endif
 429
 430
 431 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 432         &bfin_spi0_device,
 433 #endif
 434
 435 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 436 #ifdef CONFIG_SERIAL_BFIN_UART0
 437         &bfin_uart0_device,
 438 #endif
 439 #endif
 440
 441 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 442 #ifdef CONFIG_BFIN_SIR0
 443         &bfin_sir0_device,
 444 #endif
 445 #endif
 446
 447 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 448 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 449         &bfin_sport0_uart_device,
 450 #endif
 451 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 452         &bfin_sport1_uart_device,
 453 #endif
 454 #endif
 455
 456 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 457         &bfin_device_gpiokeys,
 458 #endif
 459
 460 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 461         &i2c_gpio_device,
 462 #endif
 463 };
 464
 465 static int __init blackstamp_init(void)
 466 {
 467         int ret;
 468
 469         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 470
 471         i2c_register_board_info(0, bfin_i2c_board_info,
 472                                 ARRAY_SIZE(bfin_i2c_board_info));
 473
 474         ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 475         if (ret < 0)
 476                 return ret;
 477
 478 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 479         /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 480         bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
 481         bfin_write_FIO_FLAG_S(PF0);
 482         SSYNC();
 483 #endif
 484
 485         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 486         return 0;
 487 }
 488
 489 arch_initcall(blackstamp_init);
 490
 491 static struct platform_device *stamp_early_devices[] __initdata = {
 492 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
 493 #ifdef CONFIG_SERIAL_BFIN_UART0
 494         &bfin_uart0_device,
 495 #endif
 496 #endif
 497
 498 #if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
 499 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 500         &bfin_sport0_uart_device,
 501 #endif
 502 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 503         &bfin_sport1_uart_device,
 504 #endif
 505 #endif
 506 };
 507
 508 void __init native_machine_early_platform_add_devices(void)
 509 {
 510         printk(KERN_INFO "register early platform devices\n");
 511         early_platform_add_devices(stamp_early_devices,
 512                 ARRAY_SIZE(stamp_early_devices));
 513 }