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_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 138 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
 139         .enable_dma = 0,
 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_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 160         {
 161                 .modalias = "mmc_spi",
 162                 .max_speed_hz = 5000000,     /* max spi clock (SCK) speed in HZ */
 163                 .bus_num = 0,
 164                 .chip_select = 5,
 165                 .controller_data = &mmc_spi_chip_info,
 166                 .mode = SPI_MODE_3,
 167         },
 168 #endif
 169 };
 170
 171 /* SPI controller data */
 172 static struct bfin5xx_spi_master bfin_spi0_info = {
 173         .num_chipselect = 8,
 174         .enable_dma = 1,  /* master has the ability to do dma transfer */
 175 };
 176
 177 /* SPI (0) */
 178 static struct resource bfin_spi0_resource[] = {
 179         [0] = {
 180                 .start = SPI0_REGBASE,
 181                 .end   = SPI0_REGBASE + 0xFF,
 182                 .flags = IORESOURCE_MEM,
 183                 },
 184         [1] = {
 185                 .start = CH_SPI,
 186                 .end   = CH_SPI,
 187                 .flags = IORESOURCE_DMA,
 188         },
 189         [2] = {
 190                 .start = IRQ_SPI,
 191                 .end   = IRQ_SPI,
 192                 .flags = IORESOURCE_IRQ,
 193         },
 194 };
 195
 196 static struct platform_device bfin_spi0_device = {
 197         .name = "bfin-spi",
 198         .id = 0, /* Bus number */
 199         .num_resources = ARRAY_SIZE(bfin_spi0_resource),
 200         .resource = bfin_spi0_resource,
 201         .dev = {
 202                 .platform_data = &bfin_spi0_info, /* Passed to driver */
 203         },
 204 };
 205 #endif  /* spi master and devices */
 206
 207 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 208 static struct resource bfin_uart_resources[] = {
 209         {
 210                 .start = 0xFFC00400,
 211                 .end = 0xFFC004FF,
 212                 .flags = IORESOURCE_MEM,
 213         }, {
 214                 .start = 0xFFC02000,
 215                 .end = 0xFFC020FF,
 216                 .flags = IORESOURCE_MEM,
 217         },
 218 };
 219
 220 static struct platform_device bfin_uart_device = {
 221         .name = "bfin-uart",
 222         .id = 1,
 223         .num_resources = ARRAY_SIZE(bfin_uart_resources),
 224         .resource = bfin_uart_resources,
 225 };
 226 #endif
 227
 228 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 229 #ifdef CONFIG_BFIN_SIR0
 230 static struct resource bfin_sir0_resources[] = {
 231         {
 232                 .start = 0xFFC00400,
 233                 .end = 0xFFC004FF,
 234                 .flags = IORESOURCE_MEM,
 235         },
 236         {
 237                 .start = IRQ_UART0_RX,
 238                 .end = IRQ_UART0_RX+1,
 239                 .flags = IORESOURCE_IRQ,
 240         },
 241         {
 242                 .start = CH_UART0_RX,
 243                 .end = CH_UART0_RX+1,
 244                 .flags = IORESOURCE_DMA,
 245         },
 246 };
 247
 248 static struct platform_device bfin_sir0_device = {
 249         .name = "bfin_sir",
 250         .id = 0,
 251         .num_resources = ARRAY_SIZE(bfin_sir0_resources),
 252         .resource = bfin_sir0_resources,
 253 };
 254 #endif
 255 #ifdef CONFIG_BFIN_SIR1
 256 static struct resource bfin_sir1_resources[] = {
 257         {
 258                 .start = 0xFFC02000,
 259                 .end = 0xFFC020FF,
 260                 .flags = IORESOURCE_MEM,
 261         },
 262         {
 263                 .start = IRQ_UART1_RX,
 264                 .end = IRQ_UART1_RX+1,
 265                 .flags = IORESOURCE_IRQ,
 266         },
 267         {
 268                 .start = CH_UART1_RX,
 269                 .end = CH_UART1_RX+1,
 270                 .flags = IORESOURCE_DMA,
 271         },
 272 };
 273
 274 static struct platform_device bfin_sir1_device = {
 275         .name = "bfin_sir",
 276         .id = 1,
 277         .num_resources = ARRAY_SIZE(bfin_sir1_resources),
 278         .resource = bfin_sir1_resources,
 279 };
 280 #endif
 281 #endif
 282
 283 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
 284 static struct resource bfin_twi0_resource[] = {
 285         [0] = {
 286                 .start = TWI0_REGBASE,
 287                 .end   = TWI0_REGBASE + 0xFF,
 288                 .flags = IORESOURCE_MEM,
 289         },
 290         [1] = {
 291                 .start = IRQ_TWI,
 292                 .end   = IRQ_TWI,
 293                 .flags = IORESOURCE_IRQ,
 294         },
 295 };
 296
 297 static struct platform_device i2c_bfin_twi_device = {
 298         .name = "i2c-bfin-twi",
 299         .id = 0,
 300         .num_resources = ARRAY_SIZE(bfin_twi0_resource),
 301         .resource = bfin_twi0_resource,
 302 };
 303 #endif
 304
 305 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 306 static struct platform_device bfin_sport0_uart_device = {
 307         .name = "bfin-sport-uart",
 308         .id = 0,
 309 };
 310
 311 static struct platform_device bfin_sport1_uart_device = {
 312         .name = "bfin-sport-uart",
 313         .id = 1,
 314 };
 315 #endif
 316
 317 static struct platform_device *minotaur_devices[] __initdata = {
 318 #if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
 319         &bfin_pcmcia_cf_device,
 320 #endif
 321
 322 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 323         &rtc_device,
 324 #endif
 325
 326 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
 327         &bfin_mii_bus,
 328         &bfin_mac_device,
 329 #endif
 330
 331 #if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
 332         &net2272_bfin_device,
 333 #endif
 334
 335 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 336         &bfin_spi0_device,
 337 #endif
 338
 339 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 340         &bfin_uart_device,
 341 #endif
 342
 343 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
 344 #ifdef CONFIG_BFIN_SIR0
 345         &bfin_sir0_device,
 346 #endif
 347 #ifdef CONFIG_BFIN_SIR1
 348         &bfin_sir1_device,
 349 #endif
 350 #endif
 351
 352 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
 353         &i2c_bfin_twi_device,
 354 #endif
 355
 356 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 357         &bfin_sport0_uart_device,
 358         &bfin_sport1_uart_device,
 359 #endif
 360
 361 };
 362
 363 static int __init minotaur_init(void)
 364 {
 365         printk(KERN_INFO "%s(): registering device resources\n", __func__);
 366         platform_add_devices(minotaur_devices, ARRAY_SIZE(minotaur_devices));
 367 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
 368         spi_register_board_info(bfin_spi_board_info,
 369                                 ARRAY_SIZE(bfin_spi_board_info));
 370 #endif
 371
 372         return 0;
 373 }
 374
 375 arch_initcall(minotaur_init);
 376
 377 void native_machine_restart(char *cmd)
 378 {
 379         /* workaround reboot hang when booting from SPI */
 380         if ((bfin_read_SYSCR() & 0x7) == 0x3)
 381                 bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
 382 }