arch/blackfin/mach-bf533/boards/blackstamp.c

   1 /*
   2  * File:         arch/blackfin/mach-bf533/blackstamp.c
   3  * Based on:     arch/blackfin/mach-bf533/stamp.c
   4  * Author:       Benjamin Matthews <bmat@lle.rochester.edu>
   5  *               Aidan Williams <aidan@nicta.com.au>
   6  *
   7  * Created:      2008
   8  * Description:  Board Info File for the BlackStamp
   9  *
  10  * Copyright 2005 National ICT Australia (NICTA)
  11  * Copyright 2004-2008 Analog Devices Inc.
  12  *
  13  * Enter bugs at http://blackfin.uclinux.org/
  14  *
  15  * More info about the BlackStamp at:
  16  *      http://blackfin.uclinux.org/gf/project/blackstamp/
  17  *
  18  * Licensed under the GPL-2 or later.
  19  */
  20
  21 #include <linux/device.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/mtd/mtd.h>
  24 #include <linux/mtd/partitions.h>
  25 #include <linux/mtd/physmap.h>
  26 #include <linux/spi/spi.h>
  27 #include <linux/spi/flash.h>
  28 #include <linux/irq.h>
  29 #include <linux/i2c.h>
  30 #include <asm/dma.h>
  31 #include <asm/bfin5xx_spi.h>
  32 #include <asm/portmux.h>
  33 #include <asm/dpmc.h>
  34
  35 /*
  36  * Name the Board for the /proc/cpuinfo
  37  */
  38 const char bfin_board_name[] = "BlackStamp";
  39
  40 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
  41 static struct platform_device rtc_device = {
  42         .name = "rtc-bfin",
  43         .id   = -1,
  44 };
  45 #endif
  46
  47 /*
  48  *  Driver needs to know address, irq and flag pin.
  49  */
  50 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
  51 #include <linux/smc91x.h>
  52
  53 static struct smc91x_platdata smc91x_info = {
  54         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  55         .leda = RPC_LED_100_10,
  56         .ledb = RPC_LED_TX_RX,
  57 };
  58
  59 static struct resource smc91x_resources[] = {
  60         {
  61                 .name = "smc91x-regs",
  62                 .start = 0x20300300,
  63                 .end = 0x20300300 + 16,
  64                 .flags = IORESOURCE_MEM,
  65         }, {
  66                 .start = IRQ_PF3,
  67                 .end = IRQ_PF3,
  68                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  69         },
  70 };
  71
  72 static struct platform_device smc91x_device = {
  73         .name = "smc91x",
  74         .id = 0,
  75         .num_resources = ARRAY_SIZE(smc91x_resources),
  76         .resource = smc91x_resources,
  77         .dev    = {
  78                 .platform_data  = &smc91x_info,
  79         },
  80 };
  81 #endif
  82
  83 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
  84 static struct mtd_partition bfin_spi_flash_partitions[] = {
  85         {
  86                 .name = "bootloader(spi)",
  87                 .size = 0x00040000,
  88                 .offset = 0,
  89                 .mask_flags = MTD_CAP_ROM
  90         }, {
  91                 .name = "linux kernel(spi)",
  92                 .size = 0x180000,
  93                 .offset = MTDPART_OFS_APPEND,
  94         }, {
  95                 .name = "file system(spi)",
  96                 .size = MTDPART_SIZ_FULL,
  97                 .offset = MTDPART_OFS_APPEND,
  98         }
  99 };
 100
 101 static struct flash_platform_data bfin_spi_flash_data = {
 102         .name = "m25p80",
 103         .parts = bfin_spi_flash_partitions,
 104         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
 105         .type = "m25p64",
 106 };
 107
 108 /* SPI flash chip (m25p64) */
 109 static struct bfin5xx_spi_chip spi_flash_chip_info = {
 110         .enable_dma = 0,         /* use dma transfer with this chip*/
 111         .bits_per_word = 8,
 112 };
 113 #endif
 114
 115 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 116 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
 117         .enable_dma = 0,
 118         .bits_per_word = 8,
 119 };
 120 #endif
 121
 122 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 123 static struct bfin5xx_spi_chip spidev_chip_info = {
 124         .enable_dma = 0,
 125         .bits_per_word = 8,
 126 };
 127 #endif
 128
 129 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 130 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 131         {
 132                 /* the modalias must be the same as spi device driver name */
 133                 .modalias = "m25p80", /* Name of spi_driver for this device */
 134                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 135                 .bus_num = 0, /* Framework bus number */
 136                 .chip_select = 2, /* Framework chip select. */
 137                 .platform_data = &bfin_spi_flash_data,
 138                 .controller_data = &spi_flash_chip_info,
 139                 .mode = SPI_MODE_3,
 140         },
 141 #endif
 142
 143 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 144         {
 145                 .modalias = "mmc_spi",
 146                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 147                 .bus_num = 0,
 148                 .chip_select = 5,
 149                 .controller_data = &mmc_spi_chip_info,
 150                 .mode = SPI_MODE_3,
 151         },
 152 #endif
 153
 154 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 155         {
 156                 .modalias = "spidev",
 157                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 158                 .bus_num = 0,
 159                 .chip_select = 7,
 160                 .controller_data = &spidev_chip_info,
 161         },
 162 #endif
 163 };
 164
 165 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 166 /* SPI (0) */
 167 static struct resource bfin_spi0_resource[] = {
 168         [0] = {
 169                 .start = SPI0_REGBASE,
 170                 .end   = SPI0_REGBASE + 0xFF,
 171                 .flags = IORESOURCE_MEM,
 172         },
 173         [1] = {
 174                 .start = CH_SPI,
 175                 .end   = CH_SPI,
 176                 .flags = IORESOURCE_DMA,
 177         },
 178         [2] = {
 179                 .start = IRQ_SPI,
 180                 .end   = IRQ_SPI,
 181                 .flags = IORESOURCE_IRQ,
 182         }
 183 };
 184
 185 /* SPI controller data */
 186 static struct bfin5xx_spi_master bfin_spi0_info = {
 187         .num_chipselect = 8,
 188         .enable_dma = 1,  /* master has the ability to do dma transfer */
 189         .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
 190 };
 191
 192 static struct platform_device bfin_spi0_device = {
 193         .name = "bfin-spi",
 194         .id = 0, /* Bus number */
 195         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 196         .resource = bfin_spi0_resource,
 197         .dev = {
 198                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 199         },
 200 };
 201 #endif  /* spi master and devices */
 202
 203 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 204 static struct resource bfin_uart_resources[] = {
 205         {
 206                 .start = 0xFFC00400,
 207                 .end = 0xFFC004FF,
 208                 .flags = IORESOURCE_MEM,
 209         },
 210 };
 211
 212 static struct platform_device bfin_uart_device = {
 213         .name = "bfin-uart",
 214         .id = 1,
 215         .num_resources = ARRAY_SIZE(bfin_uart_resources),
 216         .resource = bfin_uart_resources,
 217 };
 218 #endif
 219
 220 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 221 #ifdef CONFIG_BFIN_SIR0
 222 static struct resource bfin_sir0_resources[] = {
 223         {
 224                 .start = 0xFFC00400,
 225                 .end = 0xFFC004FF,
 226                 .flags = IORESOURCE_MEM,
 227         },
 228         {
 229                 .start = IRQ_UART0_RX,
 230                 .end = IRQ_UART0_RX+1,
 231                 .flags = IORESOURCE_IRQ,
 232         },
 233         {
 234                 .start = CH_UART0_RX,
 235                 .end = CH_UART0_RX+1,
 236                 .flags = IORESOURCE_DMA,
 237         },
 238 };
 239
 240 static struct platform_device bfin_sir0_device = {
 241         .name = "bfin_sir",
 242         .id = 0,
 243         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 244         .resource = bfin_sir0_resources,
 245 };
 246 #endif
 247 #endif
 248
 249 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 250 static struct platform_device bfin_sport0_uart_device = {
 251         .name = "bfin-sport-uart",
 252         .id = 0,
 253 };
 254
 255 static struct platform_device bfin_sport1_uart_device = {
 256         .name = "bfin-sport-uart",
 257         .id = 1,
 258 };
 259 #endif
 260
 261 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 262 #include <linux/input.h>
 263 #include <linux/gpio_keys.h>
 264
 265 static struct gpio_keys_button bfin_gpio_keys_table[] = {
 266         {BTN_0, GPIO_PF4, 0, "gpio-keys: BTN0"},
 267         {BTN_1, GPIO_PF5, 0, "gpio-keys: BTN1"},
 268         {BTN_2, GPIO_PF6, 0, "gpio-keys: BTN2"},
 269 }; /* Mapped to the first three PF Test Points */
 270
 271 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
 272         .buttons        = bfin_gpio_keys_table,
 273         .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
 274 };
 275
 276 static struct platform_device bfin_device_gpiokeys = {
 277         .name      = "gpio-keys",
 278         .dev = {
 279                 .platform_data = &bfin_gpio_keys_data,
 280         },
 281 };
 282 #endif
 283
 284 static struct resource bfin_gpios_resources = {
 285         .start = 0,
 286         .end   = MAX_BLACKFIN_GPIOS - 1,
 287         .flags = IORESOURCE_IRQ,
 288 };
 289
 290 static struct platform_device bfin_gpios_device = {
 291         .name = "simple-gpio",
 292         .id = -1,
 293         .num_resources = 1,
 294         .resource = &bfin_gpios_resources,
 295 };
 296
 297 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 298 #include <linux/i2c-gpio.h>
 299
 300 static struct i2c_gpio_platform_data i2c_gpio_data = {
 301         .sda_pin                = 8,
 302         .scl_pin                = 9,
 303         .sda_is_open_drain      = 0,
 304         .scl_is_open_drain      = 0,
 305         .udelay                 = 40,
 306 }; /* This hasn't actually been used these pins
 307     * are (currently) free pins on the expansion connector */
 308
 309 static struct platform_device i2c_gpio_device = {
 310         .name           = "i2c-gpio",
 311         .id             = 0,
 312         .dev            = {
 313                 .platform_data  = &i2c_gpio_data,
 314         },
 315 };
 316 #endif
 317
 318 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 319 };
 320
 321 static const unsigned int cclk_vlev_datasheet[] =
 322 {
 323         VRPAIR(VLEV_085, 250000000),
 324         VRPAIR(VLEV_090, 376000000),
 325         VRPAIR(VLEV_095, 426000000),
 326         VRPAIR(VLEV_100, 426000000),
 327         VRPAIR(VLEV_105, 476000000),
 328         VRPAIR(VLEV_110, 476000000),
 329         VRPAIR(VLEV_115, 476000000),
 330         VRPAIR(VLEV_120, 600000000),
 331         VRPAIR(VLEV_125, 600000000),
 332         VRPAIR(VLEV_130, 600000000),
 333 };
 334
 335 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 336         .tuple_tab = cclk_vlev_datasheet,
 337         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 338         .vr_settling_time = 25 /* us */,
 339 };
 340
 341 static struct platform_device bfin_dpmc = {
 342         .name = "bfin dpmc",
 343         .dev = {
 344                 .platform_data = &bfin_dmpc_vreg_data,
 345         },
 346 };
 347
 348 static struct platform_device *stamp_devices[] __initdata = {
 349
 350         &bfin_dpmc,
 351
 352 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 353         &rtc_device,
 354 #endif
 355
 356 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 357         &smc91x_device,
 358 #endif
 359
 360
 361 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 362         &bfin_spi0_device,
 363 #endif
 364
 365 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 366         &bfin_uart_device,
 367 #endif
 368
 369 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 370 #ifdef CONFIG_BFIN_SIR0
 371         &bfin_sir0_device,
 372 #endif
 373 #endif
 374
 375 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 376         &bfin_sport0_uart_device,
 377         &bfin_sport1_uart_device,
 378 #endif
 379
 380 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 381         &bfin_device_gpiokeys,
 382 #endif
 383
 384 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 385         &i2c_gpio_device,
 386 #endif
 387
 388         &bfin_gpios_device,
 389 };
 390
 391 static int __init blackstamp_init(void)
 392 {
 393         int ret;
 394
 395         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 396
 397         i2c_register_board_info(0, bfin_i2c_board_info,
 398                                 ARRAY_SIZE(bfin_i2c_board_info));
 399
 400         ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 401         if (ret < 0)
 402                 return ret;
 403
 404 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 405         /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 406         bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
 407         bfin_write_FIO_FLAG_S(PF0);
 408         SSYNC();
 409 #endif
 410
 411         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 412         return 0;
 413 }
 414
 415 arch_initcall(blackstamp_init);