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 static struct resource smc91x_resources[] = {
  52         {
  53                 .name = "smc91x-regs",
  54                 .start = 0x20300300,
  55                 .end = 0x20300300 + 16,
  56                 .flags = IORESOURCE_MEM,
  57         }, {
  58                 .start = IRQ_PF3,
  59                 .end = IRQ_PF3,
  60                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  61         },
  62 };
  63
  64 static struct platform_device smc91x_device = {
  65         .name = "smc91x",
  66         .id = 0,
  67         .num_resources = ARRAY_SIZE(smc91x_resources),
  68         .resource = smc91x_resources,
  69 };
  70 #endif
  71
  72 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
  73 static struct mtd_partition bfin_spi_flash_partitions[] = {
  74         {
  75                 .name = "bootloader(spi)",
  76                 .size = 0x00040000,
  77                 .offset = 0,
  78                 .mask_flags = MTD_CAP_ROM
  79         }, {
  80                 .name = "linux kernel(spi)",
  81                 .size = 0x180000,
  82                 .offset = MTDPART_OFS_APPEND,
  83         }, {
  84                 .name = "file system(spi)",
  85                 .size = MTDPART_SIZ_FULL,
  86                 .offset = MTDPART_OFS_APPEND,
  87         }
  88 };
  89
  90 static struct flash_platform_data bfin_spi_flash_data = {
  91         .name = "m25p80",
  92         .parts = bfin_spi_flash_partitions,
  93         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
  94         .type = "m25p64",
  95 };
  96
  97 /* SPI flash chip (m25p64) */
  98 static struct bfin5xx_spi_chip spi_flash_chip_info = {
  99         .enable_dma = 0,         /* use dma transfer with this chip*/
 100         .bits_per_word = 8,
 101 };
 102 #endif
 103
 104 #if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE)
 105 static struct bfin5xx_spi_chip spi_mmc_chip_info = {
 106         .enable_dma = 1,
 107         .bits_per_word = 8,
 108 };
 109 #endif
 110
 111 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 112 static struct bfin5xx_spi_chip spidev_chip_info = {
 113         .enable_dma = 0,
 114         .bits_per_word = 8,
 115 };
 116 #endif
 117
 118 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 119 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 120         {
 121                 /* the modalias must be the same as spi device driver name */
 122                 .modalias = "m25p80", /* Name of spi_driver for this device */
 123                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 124                 .bus_num = 0, /* Framework bus number */
 125                 .chip_select = 2, /* Framework chip select. */
 126                 .platform_data = &bfin_spi_flash_data,
 127                 .controller_data = &spi_flash_chip_info,
 128                 .mode = SPI_MODE_3,
 129         },
 130 #endif
 131
 132 #if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE)
 133         {
 134                 .modalias = "spi_mmc_dummy",
 135                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 136                 .bus_num = 0,
 137                 .chip_select = 0,
 138                 .platform_data = NULL,
 139                 .controller_data = &spi_mmc_chip_info,
 140                 .mode = SPI_MODE_3,
 141         },
 142         {
 143                 .modalias = "spi_mmc",
 144                 .max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
 145                 .bus_num = 0,
 146                 .chip_select = CONFIG_SPI_MMC_CS_CHAN,
 147                 .platform_data = NULL,
 148                 .controller_data = &spi_mmc_chip_info,
 149                 .mode = SPI_MODE_3,
 150         },
 151 #endif
 152
 153 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
 154         {
 155                 .modalias = "spidev",
 156                 .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 157                 .bus_num = 0,
 158                 .chip_select = 7,
 159                 .controller_data = &spidev_chip_info,
 160         },
 161 #endif
 162 };
 163
 164 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 165 /* SPI (0) */
 166 static struct resource bfin_spi0_resource[] = {
 167         [0] = {
 168                 .start = SPI0_REGBASE,
 169                 .end   = SPI0_REGBASE + 0xFF,
 170                 .flags = IORESOURCE_MEM,
 171         },
 172         [1] = {
 173                 .start = CH_SPI,
 174                 .end   = CH_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 static struct resource bfin_uart_resources[] = {
 199         {
 200                 .start = 0xFFC00400,
 201                 .end = 0xFFC004FF,
 202                 .flags = IORESOURCE_MEM,
 203         },
 204 };
 205
 206 static struct platform_device bfin_uart_device = {
 207         .name = "bfin-uart",
 208         .id = 1,
 209         .num_resources = ARRAY_SIZE(bfin_uart_resources),
 210         .resource = bfin_uart_resources,
 211 };
 212 #endif
 213
 214 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 215 static struct resource bfin_sir_resources[] = {
 216 #ifdef CONFIG_BFIN_SIR0
 217         {
 218                 .start = 0xFFC00400,
 219                 .end = 0xFFC004FF,
 220                 .flags = IORESOURCE_MEM,
 221         },
 222 #endif
 223 };
 224
 225 static struct platform_device bfin_sir_device = {
 226         .name = "bfin_sir",
 227         .id = 0,
 228         .num_resources = ARRAY_SIZE(bfin_sir_resources),
 229         .resource = bfin_sir_resources,
 230 };
 231 #endif
 232
 233 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 234 static struct platform_device bfin_sport0_uart_device = {
 235         .name = "bfin-sport-uart",
 236         .id = 0,
 237 };
 238
 239 static struct platform_device bfin_sport1_uart_device = {
 240         .name = "bfin-sport-uart",
 241         .id = 1,
 242 };
 243 #endif
 244
 245 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 246 #include <linux/input.h>
 247 #include <linux/gpio_keys.h>
 248
 249 static struct gpio_keys_button bfin_gpio_keys_table[] = {
 250         {BTN_0, GPIO_PF4, 0, "gpio-keys: BTN0"},
 251         {BTN_1, GPIO_PF5, 0, "gpio-keys: BTN1"},
 252         {BTN_2, GPIO_PF6, 0, "gpio-keys: BTN2"},
 253 }; /* Mapped to the first three PF Test Points */
 254
 255 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
 256         .buttons        = bfin_gpio_keys_table,
 257         .nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
 258 };
 259
 260 static struct platform_device bfin_device_gpiokeys = {
 261         .name      = "gpio-keys",
 262         .dev = {
 263                 .platform_data = &bfin_gpio_keys_data,
 264         },
 265 };
 266 #endif
 267
 268 static struct resource bfin_gpios_resources = {
 269         .start = 0,
 270         .end   = MAX_BLACKFIN_GPIOS - 1,
 271         .flags = IORESOURCE_IRQ,
 272 };
 273
 274 static struct platform_device bfin_gpios_device = {
 275         .name = "simple-gpio",
 276         .id = -1,
 277         .num_resources = 1,
 278         .resource = &bfin_gpios_resources,
 279 };
 280
 281 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 282 #include <linux/i2c-gpio.h>
 283
 284 static struct i2c_gpio_platform_data i2c_gpio_data = {
 285         .sda_pin                = 8,
 286         .scl_pin                = 9,
 287         .sda_is_open_drain      = 0,
 288         .scl_is_open_drain      = 0,
 289         .udelay                 = 40,
 290 }; /* This hasn't actually been used these pins
 291     * are (currently) free pins on the expansion connector */
 292
 293 static struct platform_device i2c_gpio_device = {
 294         .name           = "i2c-gpio",
 295         .id             = 0,
 296         .dev            = {
 297                 .platform_data  = &i2c_gpio_data,
 298         },
 299 };
 300 #endif
 301
 302 #ifdef CONFIG_I2C_BOARDINFO
 303 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
 304 };
 305 #endif
 306
 307 static const unsigned int cclk_vlev_datasheet[] =
 308 {
 309         VRPAIR(VLEV_085, 250000000),
 310         VRPAIR(VLEV_090, 376000000),
 311         VRPAIR(VLEV_095, 426000000),
 312         VRPAIR(VLEV_100, 426000000),
 313         VRPAIR(VLEV_105, 476000000),
 314         VRPAIR(VLEV_110, 476000000),
 315         VRPAIR(VLEV_115, 476000000),
 316         VRPAIR(VLEV_120, 600000000),
 317         VRPAIR(VLEV_125, 600000000),
 318         VRPAIR(VLEV_130, 600000000),
 319 };
 320
 321 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
 322         .tuple_tab = cclk_vlev_datasheet,
 323         .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
 324         .vr_settling_time = 25 /* us */,
 325 };
 326
 327 static struct platform_device bfin_dpmc = {
 328         .name = "bfin dpmc",
 329         .dev = {
 330                 .platform_data = &bfin_dmpc_vreg_data,
 331         },
 332 };
 333
 334 static struct platform_device *stamp_devices[] __initdata = {
 335
 336         &bfin_dpmc,
 337
 338 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 339         &rtc_device,
 340 #endif
 341
 342 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 343         &smc91x_device,
 344 #endif
 345
 346
 347 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 348         &bfin_spi0_device,
 349 #endif
 350
 351 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 352         &bfin_uart_device,
 353 #endif
 354
 355 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 356         &bfin_sir_device,
 357 #endif
 358
 359 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 360         &bfin_sport0_uart_device,
 361         &bfin_sport1_uart_device,
 362 #endif
 363
 364 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 365         &bfin_device_gpiokeys,
 366 #endif
 367
 368 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 369         &i2c_gpio_device,
 370 #endif
 371
 372         &bfin_gpios_device,
 373 };
 374
 375 static int __init blackstamp_init(void)
 376 {
 377         int ret;
 378
 379         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 380
 381 #ifdef CONFIG_I2C_BOARDINFO
 382         i2c_register_board_info(0, bfin_i2c_board_info,
 383                                 ARRAY_SIZE(bfin_i2c_board_info));
 384 #endif
 385
 386         ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
 387         if (ret < 0)
 388                 return ret;
 389
 390 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 391         /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
 392         bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
 393         bfin_write_FIO_FLAG_S(PF0);
 394         SSYNC();
 395 #endif
 396
 397         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 398         return 0;
 399 }
 400
 401 arch_initcall(blackstamp_init);