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 };
 106 #endif
 107
 108 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 109 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
 110         .enable_dma = 0,
 111 };
 112 #endif
 113
 114 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 115 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 116         {
 117                 /* the modalias must be the same as spi device driver name */
 118                 .modalias = "m25p80", /* Name of spi_driver for this device */
 119                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 120                 .bus_num = 0, /* Framework bus number */
 121                 .chip_select = 2, /* Framework chip select. */
 122                 .platform_data = &bfin_spi_flash_data,
 123                 .controller_data = &spi_flash_chip_info,
 124                 .mode = SPI_MODE_3,
 125         },
 126 #endif
 127
 128 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 129         {
 130                 .modalias = "mmc_spi",
 131                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 132                 .bus_num = 0,
 133                 .chip_select = 5,
 134                 .controller_data = &mmc_spi_chip_info,
 135                 .mode = SPI_MODE_3,
 136         },
 137 #endif
 138
 139 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 140         {
 141                 .modalias = "spidev",
 142                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 143                 .bus_num = 0,
 144                 .chip_select = 7,
 145         },
 146 #endif
 147 };
 148
 149 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 150 /* SPI (0) */
 151 static struct resource bfin_spi0_resource[] = {
 152         [0] = {
 153                 .start = SPI0_REGBASE,
 154                 .end   = SPI0_REGBASE + 0xFF,
 155                 .flags = IORESOURCE_MEM,
 156         },
 157         [1] = {
 158                 .start = CH_SPI,
 159                 .end   = CH_SPI,
 160                 .flags = IORESOURCE_DMA,
 161         },
 162         [2] = {
 163                 .start = IRQ_SPI,
 164                 .end   = IRQ_SPI,
 165                 .flags = IORESOURCE_IRQ,
 166         }
 167 };
 168
 169 /* SPI controller data */
 170 static struct bfin5xx_spi_master bfin_spi0_info = {
 171         .num_chipselect = 8,
 172         .enable_dma = 1,  /* master has the ability to do dma transfer */
 173         .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
 174 };
 175
 176 static struct platform_device bfin_spi0_device = {
 177         .name = "bfin-spi",
 178         .id = 0, /* Bus number */
 179         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 180         .resource = bfin_spi0_resource,
 181         .dev = {
 182                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 183         },
 184 };
 185 #endif  /* spi master and devices */
 186
 187 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 188 #ifdef CONFIG_SERIAL_BFIN_UART0
 189 static struct resource bfin_uart0_resources[] = {
 190         {
 191                 .start = BFIN_UART_THR,
 192                 .end = BFIN_UART_GCTL+2,
 193                 .flags = IORESOURCE_MEM,
 194         },
 195         {
 196                 .start = IRQ_UART0_RX,
 197                 .end = IRQ_UART0_RX + 1,
 198                 .flags = IORESOURCE_IRQ,
 199         },
 200         {
 201                 .start = IRQ_UART0_ERROR,
 202                 .end = IRQ_UART0_ERROR,
 203                 .flags = IORESOURCE_IRQ,
 204         },
 205         {
 206                 .start = CH_UART0_TX,
 207                 .end = CH_UART0_TX,
 208                 .flags = IORESOURCE_DMA,
 209         },
 210         {
 211                 .start = CH_UART0_RX,
 212                 .end = CH_UART0_RX,
 213                 .flags = IORESOURCE_DMA,
 214         },
 215 };
 216
 217 static unsigned short bfin_uart0_peripherals[] = {
 218         P_UART0_TX, P_UART0_RX, 0
 219 };
 220
 221 static struct platform_device bfin_uart0_device = {
 222         .name = "bfin-uart",
 223         .id = 0,
 224         .num_resources = ARRAY_SIZE(bfin_uart0_resources),
 225         .resource = bfin_uart0_resources,
 226         .dev = {
 227                 .platform_data = &bfin_uart0_peripherals, /* Passed to driver */
 228         },
 229 };
 230 #endif
 231 #endif
 232
 233 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 234 #ifdef CONFIG_BFIN_SIR0
 235 static struct resource bfin_sir0_resources[] = {
 236         {
 237                 .start = 0xFFC00400,
 238                 .end = 0xFFC004FF,
 239                 .flags = IORESOURCE_MEM,
 240         },
 241         {
 242                 .start = IRQ_UART0_RX,
 243                 .end = IRQ_UART0_RX+1,
 244                 .flags = IORESOURCE_IRQ,
 245         },
 246         {
 247                 .start = CH_UART0_RX,
 248                 .end = CH_UART0_RX+1,
 249                 .flags = IORESOURCE_DMA,
 250         },
 251 };
 252
 253 static struct platform_device bfin_sir0_device = {
 254         .name = "bfin_sir",
 255         .id = 0,
 256         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 257         .resource = bfin_sir0_resources,
 258 };
 259 #endif
 260 #endif
 261
 262 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 263 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 264 static struct resource bfin_sport0_uart_resources[] = {
 265         {
 266                 .start = SPORT0_TCR1,
 267                 .end = SPORT0_MRCS3+4,
 268                 .flags = IORESOURCE_MEM,
 269         },
 270         {
 271                 .start = IRQ_SPORT0_RX,
 272                 .end = IRQ_SPORT0_RX+1,
 273                 .flags = IORESOURCE_IRQ,
 274         },
 275         {
 276                 .start = IRQ_SPORT0_ERROR,
 277                 .end = IRQ_SPORT0_ERROR,
 278                 .flags = IORESOURCE_IRQ,
 279         },
 280 };
 281
 282 static unsigned short bfin_sport0_peripherals[] = {
 283         P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
 284         P_SPORT0_DRPRI, P_SPORT0_RSCLK, 0
 285 };
 286
 287 static struct platform_device bfin_sport0_uart_device = {
 288         .name = "bfin-sport-uart",
 289         .id = 0,
 290         .num_resources = ARRAY_SIZE(bfin_sport0_uart_resources),
 291         .resource = bfin_sport0_uart_resources,
 292         .dev = {
 293                 .platform_data = &bfin_sport0_peripherals, /* Passed to driver */
 294         },
 295 };
 296 #endif
 297 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 298 static struct resource bfin_sport1_uart_resources[] = {
 299         {
 300                 .start = SPORT1_TCR1,
 301                 .end = SPORT1_MRCS3+4,
 302                 .flags = IORESOURCE_MEM,
 303         },
 304         {
 305                 .start = IRQ_SPORT1_RX,
 306                 .end = IRQ_SPORT1_RX+1,
 307                 .flags = IORESOURCE_IRQ,
 308         },
 309         {
 310                 .start = IRQ_SPORT1_ERROR,
 311                 .end = IRQ_SPORT1_ERROR,
 312                 .flags = IORESOURCE_IRQ,
 313         },
 314 };
 315
 316 static unsigned short bfin_sport1_peripherals[] = {
 317         P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS,
 318         P_SPORT1_DRPRI, P_SPORT1_RSCLK, 0
 319 };
 320
 321 static struct platform_device bfin_sport1_uart_device = {
 322         .name = "bfin-sport-uart",
 323         .id = 1,
 324         .num_resources = ARRAY_SIZE(bfin_sport1_uart_resources),
 325         .resource = bfin_sport1_uart_resources,
 326         .dev = {
 327                 .platform_data = &bfin_sport1_peripherals, /* Passed to driver */
 328         },
 329 };
 330 #endif
 331 #endif
 332
 333 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 334 #include <linux/input.h>
 335 #include <linux/gpio_keys.h>
 336
 337 static struct gpio_keys_button bfin_gpio_keys_table[] = {
 338         {BTN_0, GPIO_PF4, 0, "gpio-keys: BTN0"},
 339         {BTN_1, GPIO_PF5, 0, "gpio-keys: BTN1"},
 340         {BTN_2, GPIO_PF6, 0, "gpio-keys: BTN2"},
 341 }; /* Mapped to the first three PF Test Points */
 342
 343 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
 344         .buttons        = bfin_gpio_keys_table,
 345         .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
 346 };
 347
 348 static struct platform_device bfin_device_gpiokeys = {
 349         .name      = "gpio-keys",
 350         .dev = {
 351                 .platform_data = &bfin_gpio_keys_data,
 352         },
 353 };
 354 #endif
 355
 356 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 357 #include <linux/i2c-gpio.h>
 358
 359 static struct i2c_gpio_platform_data i2c_gpio_data = {
 360         .sda_pin                = GPIO_PF8,
 361         .scl_pin                = GPIO_PF9,
 362         .sda_is_open_drain      = 0,
 363         .scl_is_open_drain      = 0,
 364         .udelay                 = 40,
 365 }; /* This hasn't actually been used these pins
 366     * are (currently) free pins on the expansion connector */
 367
 368 static struct platform_device i2c_gpio_device = {
 369         .name           = "i2c-gpio",
 370         .id             = 0,
 371         .dev            = {
 372                 .platform_data  = &i2c_gpio_data,
 373         },
 374 };
 375 #endif
 376
 377 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 378 };
 379
 380 static const unsigned int cclk_vlev_datasheet[] =
 381 {
 382         VRPAIR(VLEV_085, 250000000),
 383         VRPAIR(VLEV_090, 376000000),
 384         VRPAIR(VLEV_095, 426000000),
 385         VRPAIR(VLEV_100, 426000000),
 386         VRPAIR(VLEV_105, 476000000),
 387         VRPAIR(VLEV_110, 476000000),
 388         VRPAIR(VLEV_115, 476000000),
 389         VRPAIR(VLEV_120, 600000000),
 390         VRPAIR(VLEV_125, 600000000),
 391         VRPAIR(VLEV_130, 600000000),
 392 };
 393
 394 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 395         .tuple_tab = cclk_vlev_datasheet,
 396         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 397         .vr_settling_time = 25 /* us */,
 398 };
 399
 400 static struct platform_device bfin_dpmc = {
 401         .name = "bfin dpmc",
 402         .dev = {
 403                 .platform_data = &bfin_dmpc_vreg_data,
 404         },
 405 };
 406
 407 static struct platform_device *stamp_devices[] __initdata = {
 408
 409         &bfin_dpmc,
 410
 411 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 412         &rtc_device,
 413 #endif
 414
 415 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 416         &smc91x_device,
 417 #endif
 418
 419
 420 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 421         &bfin_spi0_device,
 422 #endif
 423
 424 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 425 #ifdef CONFIG_SERIAL_BFIN_UART0
 426         &bfin_uart0_device,
 427 #endif
 428 #endif
 429
 430 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 431 #ifdef CONFIG_BFIN_SIR0
 432         &bfin_sir0_device,
 433 #endif
 434 #endif
 435
 436 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 437 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 438         &bfin_sport0_uart_device,
 439 #endif
 440 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 441         &bfin_sport1_uart_device,
 442 #endif
 443 #endif
 444
 445 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 446         &bfin_device_gpiokeys,
 447 #endif
 448
 449 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 450         &i2c_gpio_device,
 451 #endif
 452 };
 453
 454 static int __init blackstamp_init(void)
 455 {
 456         int ret;
 457
 458         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 459
 460         i2c_register_board_info(0, bfin_i2c_board_info,
 461                                 ARRAY_SIZE(bfin_i2c_board_info));
 462
 463         ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 464         if (ret < 0)
 465                 return ret;
 466
 467 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 468         /*
 469          * setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC.
 470          * the bfin-async-map driver takes care of flipping between
 471          * flash and ethernet when necessary.
 472          */
 473         ret = gpio_request(GPIO_PF0, "enet_cpld");
 474         if (!ret) {
 475                 gpio_direction_output(GPIO_PF0, 1);
 476                 gpio_free(GPIO_PF0);
 477         }
 478 #endif
 479
 480         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 481         return 0;
 482 }
 483
 484 arch_initcall(blackstamp_init);
 485
 486 static struct platform_device *stamp_early_devices[] __initdata = {
 487 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
 488 #ifdef CONFIG_SERIAL_BFIN_UART0
 489         &bfin_uart0_device,
 490 #endif
 491 #endif
 492
 493 #if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
 494 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 495         &bfin_sport0_uart_device,
 496 #endif
 497 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
 498         &bfin_sport1_uart_device,
 499 #endif
 500 #endif
 501 };
 502
 503 void __init native_machine_early_platform_add_devices(void)
 504 {
 505         printk(KERN_INFO "register early platform devices\n");
 506         early_platform_add_devices(stamp_early_devices,
 507                 ARRAY_SIZE(stamp_early_devices));
 508 }