git.oblomov.eu Git - linux-2.6/blob - arch/blackfin/mach-bf537/boards/minotaur.c

   1 /*
   2  */
   3
   4 #include <linux/device.h>
   5 #include <linux/platform_device.h>
   6 #include <linux/mtd/mtd.h>
   7 #include <linux/mtd/partitions.h>
   8 #include <linux/spi/spi.h>
   9 #include <linux/spi/flash.h>
  10 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
  11 #include <linux/usb/isp1362.h>
  12 #endif
  13 #include <linux/ata_platform.h>
  14 #include <linux/irq.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/usb/sl811.h>
  17 #include <asm/dma.h>
  18 #include <asm/bfin5xx_spi.h>
  19 #include <asm/reboot.h>
  20 #include <linux/spi/ad7877.h>
  21
  22 /*
  23  * Name the Board for the /proc/cpuinfo
  24  */
  25 char *bfin_board_name = "CamSig Minotaur BF537";
  26
  27 #if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
  28 static struct resource bfin_pcmcia_cf_resources[] = {
  29         {
  30                 .start = 0x20310000, /* IO PORT */
  31                 .end = 0x20312000,
  32                 .flags = IORESOURCE_MEM,
  33         }, {
  34                 .start = 0x20311000, /* Attribute Memory */
  35                 .end = 0x20311FFF,
  36                 .flags = IORESOURCE_MEM,
  37         }, {
  38                 .start = IRQ_PF4,
  39                 .end = IRQ_PF4,
  40                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  41         }, {
  42                 .start = IRQ_PF6, /* Card Detect PF6 */
  43                 .end = IRQ_PF6,
  44                 .flags = IORESOURCE_IRQ,
  45         },
  46 };
  47
  48 static struct platform_device bfin_pcmcia_cf_device = {
  49         .name = "bfin_cf_pcmcia",
  50         .id = -1,
  51         .num_resources = ARRAY_SIZE(bfin_pcmcia_cf_resources),
  52         .resource = bfin_pcmcia_cf_resources,
  53 };
  54 #endif
  55
  56 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
  57 static struct platform_device rtc_device = {
  58         .name = "rtc-bfin",
  59         .id   = -1,
  60 };
  61 #endif
  62
  63 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
  64 static struct platform_device bfin_mii_bus = {
  65         .name = "bfin_mii_bus",
  66 };
  67
  68 static struct platform_device bfin_mac_device = {
  69         .name = "bfin_mac",
  70         .dev.platform_data = &bfin_mii_bus,
  71 };
  72 #endif
  73
  74 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
  75 static struct resource net2272_bfin_resources[] = {
  76         {
  77                 .start = 0x20300000,
  78                 .end = 0x20300000 + 0x100,
  79                 .flags = IORESOURCE_MEM,
  80         }, {
  81                 .start = IRQ_PF7,
  82                 .end = IRQ_PF7,
  83                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
  84         },
  85 };
  86
  87 static struct platform_device net2272_bfin_device = {
  88         .name = "net2272",
  89         .id = -1,
  90         .num_resources = ARRAY_SIZE(net2272_bfin_resources),
  91         .resource = net2272_bfin_resources,
  92 };
  93 #endif
  94
  95 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
  96 /* all SPI peripherals info goes here */
  97
  98 #if defined(CONFIG_MTD_M25P80) \
  99         || defined(CONFIG_MTD_M25P80_MODULE)
 100
 101 /* Partition sizes */
 102 #define FLASH_SIZE       0x00400000
 103 #define PSIZE_UBOOT      0x00030000
 104 #define PSIZE_INITRAMFS  0x00240000
 105
 106 static struct mtd_partition bfin_spi_flash_partitions[] = {
 107         {
 108                 .name       = "bootloader(spi)",
 109                 .size       = PSIZE_UBOOT,
 110                 .offset     = 0x000000,
 111                 .mask_flags = MTD_CAP_ROM
 112         }, {
 113                 .name       = "initramfs(spi)",
 114                 .size       = PSIZE_INITRAMFS,
 115                 .offset     = PSIZE_UBOOT
 116         }, {
 117                 .name       = "opt(spi)",
 118                 .size       = FLASH_SIZE - (PSIZE_UBOOT + PSIZE_INITRAMFS),
 119                 .offset     = PSIZE_UBOOT + PSIZE_INITRAMFS,
 120         }
 121 };
 122
 123 static struct flash_platform_data bfin_spi_flash_data = {
 124         .name = "m25p80",
 125         .parts = bfin_spi_flash_partitions,
 126         .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
 127         .type = "m25p64",
 128 };
 129
 130 /* SPI flash chip (m25p64) */
 131 static struct bfin5xx_spi_chip spi_flash_chip_info = {
 132         .enable_dma = 0,         /* use dma transfer with this chip*/
 133         .bits_per_word = 8,
 134 };
 135 #endif
 136
 137 #if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE)
 138 static struct bfin5xx_spi_chip spi_mmc_chip_info = {
 139         .enable_dma = 1,
 140         .bits_per_word = 8,
 141 };
 142 #endif
 143
 144 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 145 #if defined(CONFIG_MTD_M25P80) \
 146         || defined(CONFIG_MTD_M25P80_MODULE)
 147         {
 148                 /* the modalias must be the same as spi device driver name */
 149                 .modalias = "m25p80", /* Name of spi_driver for this device */
 150                 .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
 151                 .bus_num = 0, /* Framework bus number */
 152                 .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/
 153                 .platform_data = &bfin_spi_flash_data,
 154                 .controller_data = &spi_flash_chip_info,
 155                 .mode = SPI_MODE_3,
 156         },
 157 #endif
 158
 159 #if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE)
 160         {
 161                 .modalias = "spi_mmc_dummy",
 162                 .max_speed_hz = 5000000,     /* max spi clock (SCK) speed in HZ */
 163                 .bus_num = 0,
 164                 .chip_select = 0,
 165                 .platform_data = NULL,
 166                 .controller_data = &spi_mmc_chip_info,
 167                 .mode = SPI_MODE_3,
 168         },
 169         {
 170                 .modalias = "spi_mmc",
 171                 .max_speed_hz = 5000000,     /* max spi clock (SCK) speed in HZ */
 172                 .bus_num = 0,
 173                 .chip_select = CONFIG_SPI_MMC_CS_CHAN,
 174                 .platform_data = NULL,
 175                 .controller_data = &spi_mmc_chip_info,
 176                 .mode = SPI_MODE_3,
 177         },
 178 #endif
 179 };
 180
 181 /* SPI controller data */
 182 static struct bfin5xx_spi_master bfin_spi0_info = {
 183         .num_chipselect = 8,
 184         .enable_dma = 1,  /* master has the ability to do dma transfer */
 185 };
 186
 187 /* SPI (0) */
 188 static struct resource bfin_spi0_resource[] = {
 189         [0] = {
 190                 .start = SPI0_REGBASE,
 191                 .end   = SPI0_REGBASE + 0xFF,
 192                 .flags = IORESOURCE_MEM,
 193                 },
 194         [1] = {
 195                 .start = CH_SPI,
 196                 .end   = CH_SPI,
 197                 .flags = IORESOURCE_IRQ,
 198         },
 199 };
 200
 201 static struct platform_device bfin_spi0_device = {
 202         .name = "bfin-spi",
 203         .id = 0, /* Bus number */
 204         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 205         .resource = bfin_spi0_resource,
 206         .dev = {
 207                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 208         },
 209 };
 210 #endif  /* spi master and devices */
 211
 212 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 213 static struct resource bfin_uart_resources[] = {
 214         {
 215                 .start = 0xFFC00400,
 216                 .end = 0xFFC004FF,
 217                 .flags = IORESOURCE_MEM,
 218         }, {
 219                 .start = 0xFFC02000,
 220                 .end = 0xFFC020FF,
 221                 .flags = IORESOURCE_MEM,
 222         },
 223 };
 224
 225 static struct platform_device bfin_uart_device = {
 226         .name = "bfin-uart",
 227         .id = 1,
 228         .num_resources = ARRAY_SIZE(bfin_uart_resources),
 229         .resource = bfin_uart_resources,
 230 };
 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 #ifdef CONFIG_BFIN_SIR1
 261 static struct resource bfin_sir1_resources[] = {
 262         {
 263                 .start = 0xFFC02000,
 264                 .end = 0xFFC020FF,
 265                 .flags = IORESOURCE_MEM,
 266         },
 267         {
 268                 .start = IRQ_UART1_RX,
 269                 .end = IRQ_UART1_RX+1,
 270                 .flags = IORESOURCE_IRQ,
 271         },
 272         {
 273                 .start = CH_UART1_RX,
 274                 .end = CH_UART1_RX+1,
 275                 .flags = IORESOURCE_DMA,
 276         },
 277 };
 278
 279 static struct platform_device bfin_sir1_device = {
 280         .name = "bfin_sir",
 281         .id = 1,
 282         .num_resources = ARRAY_SIZE(bfin_sir1_resources),
 283         .resource = bfin_sir1_resources,
 284 };
 285 #endif
 286 #endif
 287
 288 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
 289 static struct resource bfin_twi0_resource[] = {
 290         [0] = {
 291                 .start = TWI0_REGBASE,
 292                 .end   = TWI0_REGBASE + 0xFF,
 293                 .flags = IORESOURCE_MEM,
 294         },
 295         [1] = {
 296                 .start = IRQ_TWI,
 297                 .end   = IRQ_TWI,
 298                 .flags = IORESOURCE_IRQ,
 299         },
 300 };
 301
 302 static struct platform_device i2c_bfin_twi_device = {
 303         .name = "i2c-bfin-twi",
 304         .id = 0,
 305         .num_resources = ARRAY_SIZE(bfin_twi0_resource),
 306         .resource = bfin_twi0_resource,
 307 };
 308 #endif
 309
 310 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 311 static struct platform_device bfin_sport0_uart_device = {
 312         .name = "bfin-sport-uart",
 313         .id = 0,
 314 };
 315
 316 static struct platform_device bfin_sport1_uart_device = {
 317         .name = "bfin-sport-uart",
 318         .id = 1,
 319 };
 320 #endif
 321
 322 static struct platform_device *minotaur_devices[] __initdata = {
 323 #if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
 324         &bfin_pcmcia_cf_device,
 325 #endif
 326
 327 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 328         &rtc_device,
 329 #endif
 330
 331 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
 332         &bfin_mii_bus,
 333         &bfin_mac_device,
 334 #endif
 335
 336 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 337         &net2272_bfin_device,
 338 #endif
 339
 340 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 341         &bfin_spi0_device,
 342 #endif
 343
 344 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 345         &bfin_uart_device,
 346 #endif
 347
 348 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 349 #ifdef CONFIG_BFIN_SIR0
 350         &bfin_sir0_device,
 351 #endif
 352 #ifdef CONFIG_BFIN_SIR1
 353         &bfin_sir1_device,
 354 #endif
 355 #endif
 356
 357 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
 358         &i2c_bfin_twi_device,
 359 #endif
 360
 361 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 362         &bfin_sport0_uart_device,
 363         &bfin_sport1_uart_device,
 364 #endif
 365
 366 };
 367
 368 static int __init minotaur_init(void)
 369 {
 370         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 371         platform_add_devices(minotaur_devices, ARRAY_SIZE(minotaur_devices));
 372 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 373         spi_register_board_info(bfin_spi_board_info,
 374                                 ARRAY_SIZE(bfin_spi_board_info));
 375 #endif
 376
 377         return 0;
 378 }
 379
 380 arch_initcall(minotaur_init);
 381
 382 void native_machine_restart(char *cmd)
 383 {
 384         /* workaround reboot hang when booting from SPI */
 385         if ((bfin_read_SYSCR() & 0x7) == 0x3)
 386                 bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
 387 }