target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
   7  */
   8
   9 #include <linux/init.h>
  10 #include <linux/kernel.h>
  11 #include <linux/string.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/mtd/mtd.h>
  14 #include <linux/mtd/partitions.h>
  15 #include <linux/mtd/physmap.h>
  16 #include <linux/ssb/ssb.h>
  17 #include <asm/addrspace.h>
  18 #include <bcm63xx_board.h>
  19 #include <bcm63xx_cpu.h>
  20 #include <bcm63xx_regs.h>
  21 #include <bcm63xx_io.h>
  22 #include <bcm63xx_board.h>
  23 #include <bcm63xx_dev_pci.h>
  24 #include <bcm63xx_dev_uart.h>
  25 #include <bcm63xx_dev_wdt.h>
  26 #include <bcm63xx_dev_enet.h>
  27 #include <bcm63xx_dev_pcmcia.h>
  28 #include <bcm63xx_dev_usb_ohci.h>
  29 #include <bcm63xx_dev_usb_ehci.h>
  30 #include <bcm63xx_dev_usb_udc.h>
  31 #include <bcm63xx_dev_spi.h>
  32 #include <board_bcm963xx.h>
  33
  34 #define PFX     "board_bcm963xx: "
  35
  36 static struct bcm963xx_nvram nvram;
  37 static unsigned int mac_addr_used = 0;
  38 static struct board_info board;
  39
  40 /*
  41  * known 6338 boards
  42  */
  43
  44 #ifdef CONFIG_BCM63XX_CPU_6338
  45 static struct board_info __initdata board_96338gw = {
  46         .name                           = "96338GW",
  47         .expected_cpu_id                = 0x6338,
  48
  49         .has_enet0                      = 1,
  50         .enet0 = {
  51                 .force_speed_100        = 1,
  52                 .force_duplex_full      = 1,
  53         },
  54
  55         .has_ohci0                      = 1,
  56 };
  57
  58 static struct board_info __initdata board_96338w = {
  59         .name                           = "96338W",
  60         .expected_cpu_id                = 0x6338,
  61
  62         .has_enet0                      = 1,
  63         .enet0 = {
  64                 .force_speed_100        = 1,
  65                 .force_duplex_full      = 1,
  66         }
  67 };
  68 #endif
  69
  70 /*
  71  * known 6345 boards
  72  */
  73 #ifdef CONFIG_BCM63XX_CPU_6345
  74 static struct board_info __initdata board_96345gw2 = {
  75         .name                           = "96345GW2",
  76         .expected_cpu_id                = 0x6345,
  77 };
  78 #endif
  79
  80 /*
  81  * known 6348 boards
  82  */
  83 #ifdef CONFIG_BCM63XX_CPU_6348
  84 static struct board_info __initdata board_96348r = {
  85         .name                           = "96348R",
  86         .expected_cpu_id                = 0x6348,
  87
  88         .has_enet0                      = 1,
  89         .has_pci                        = 1,
  90
  91         .enet0 = {
  92                 .has_phy                = 1,
  93                 .use_internal_phy       = 1,
  94         },
  95 };
  96
  97 static struct board_info __initdata board_96348gw_10 = {
  98         .name                           = "96348GW-10",
  99         .expected_cpu_id                = 0x6348,
 100
 101         .has_enet0                      = 1,
 102         .has_enet1                      = 1,
 103         .has_pci                        = 1,
 104
 105         .enet0 = {
 106                 .has_phy                = 1,
 107                 .use_internal_phy       = 1,
 108         },
 109         .enet1 = {
 110                 .force_speed_100        = 1,
 111                 .force_duplex_full      = 1,
 112         },
 113
 114         .has_ohci0                      = 1,
 115         .has_pccard                     = 1,
 116         .has_ehci0                      = 1,
 117 };
 118
 119 static struct board_info __initdata board_96348gw_11 = {
 120         .name                           = "96348GW-11",
 121         .expected_cpu_id                = 0x6348,
 122
 123         .has_enet0                      = 1,
 124         .has_enet1                      = 1,
 125         .has_pci                        = 1,
 126
 127         .enet0 = {
 128                 .has_phy                = 1,
 129                 .use_internal_phy       = 1,
 130         },
 131
 132         .enet1 = {
 133                 .force_speed_100        = 1,
 134                 .force_duplex_full      = 1,
 135         },
 136
 137
 138         .has_ohci0 = 1,
 139         .has_pccard = 1,
 140         .has_ehci0 = 1,
 141 };
 142
 143 static struct board_info __initdata board_96348gw = {
 144         .name                           = "96348GW",
 145         .expected_cpu_id                = 0x6348,
 146
 147         .has_enet0                      = 1,
 148         .has_enet1                      = 1,
 149         .has_pci                        = 1,
 150
 151         .enet0 = {
 152                 .has_phy                = 1,
 153                 .use_internal_phy       = 1,
 154         },
 155         .enet1 = {
 156                 .force_speed_100        = 1,
 157                 .force_duplex_full      = 1,
 158         },
 159
 160         .has_ohci0 = 1,
 161 };
 162
 163 static struct board_info __initdata board_FAST2404 = {
 164         .name                           = "F@ST2404",
 165         .expected_cpu_id                = 0x6348,
 166
 167         .has_enet0                      = 1,
 168         .has_enet1                      = 1,
 169         .has_pci                        = 1,
 170
 171         .enet0 = {
 172                 .has_phy                = 1,
 173                 .use_internal_phy       = 1,
 174         },
 175
 176         .enet1 = {
 177                 .force_speed_100        = 1,
 178                 .force_duplex_full      = 1,
 179         },
 180
 181
 182         .has_ohci0 = 1,
 183         .has_pccard = 1,
 184         .has_ehci0 = 1,
 185 };
 186
 187 static struct board_info __initdata board_DV201AMR = {
 188         .name                           = "DV201AMR",
 189         .expected_cpu_id                = 0x6348,
 190
 191         .has_pci                        = 1,
 192         .has_ohci0                      = 1,
 193         .has_udc0                       = 1,
 194
 195         .has_enet0                      = 1,
 196         .has_enet1                      = 1,
 197         .enet0 = {
 198                 .has_phy                = 1,
 199                 .use_internal_phy       = 1,
 200         },
 201         .enet1 = {
 202                 .force_speed_100        = 1,
 203                 .force_duplex_full      = 1,
 204         },
 205 };
 206
 207 static struct board_info __initdata board_96348gw_a = {
 208         .name                           = "96348GW-A",
 209         .expected_cpu_id                = 0x6348,
 210
 211         .has_enet0                      = 1,
 212         .has_enet1                      = 1,
 213         .has_pci                        = 1,
 214
 215         .enet0 = {
 216                 .has_phy                = 1,
 217                 .use_internal_phy       = 1,
 218         },
 219         .enet1 = {
 220                 .force_speed_100        = 1,
 221                 .force_duplex_full      = 1,
 222         },
 223
 224         .has_ohci0 = 1,
 225 };
 226
 227
 228 #endif
 229
 230 /*
 231  * known 6358 boards
 232  */
 233 #ifdef CONFIG_BCM63XX_CPU_6358
 234 static struct board_info __initdata board_96358vw = {
 235         .name                           = "96358VW",
 236         .expected_cpu_id                = 0x6358,
 237
 238         .has_enet0                      = 1,
 239         .has_enet1                      = 1,
 240         .has_pci                        = 1,
 241
 242         .enet0 = {
 243                 .has_phy                = 1,
 244                 .use_internal_phy       = 1,
 245         },
 246
 247         .enet1 = {
 248                 .force_speed_100        = 1,
 249                 .force_duplex_full      = 1,
 250         },
 251
 252
 253         .has_ohci0 = 1,
 254         .has_pccard = 1,
 255         .has_ehci0 = 1,
 256 };
 257
 258 static struct board_info __initdata board_96358vw2 = {
 259         .name                           = "96358VW2",
 260         .expected_cpu_id                = 0x6358,
 261
 262         .has_enet0                      = 1,
 263         .has_enet1                      = 1,
 264         .has_pci                        = 1,
 265
 266         .enet0 = {
 267                 .has_phy                = 1,
 268                 .use_internal_phy       = 1,
 269         },
 270
 271         .enet1 = {
 272                 .force_speed_100        = 1,
 273                 .force_duplex_full      = 1,
 274         },
 275
 276
 277         .has_ohci0 = 1,
 278         .has_pccard = 1,
 279         .has_ehci0 = 1,
 280 };
 281
 282 static struct board_info __initdata board_AGPFS0 = {
 283         .name                           = "AGPF-S0",
 284         .expected_cpu_id                = 0x6358,
 285
 286         .has_enet0                      = 1,
 287         .has_enet1                      = 1,
 288         .has_pci                        = 1,
 289
 290         .enet0 = {
 291                 .has_phy                = 1,
 292                 .use_internal_phy       = 1,
 293         },
 294
 295         .enet1 = {
 296                 .force_speed_100        = 1,
 297                 .force_duplex_full      = 1,
 298         },
 299
 300         .has_ohci0 = 1,
 301         .has_ehci0 = 1,
 302 };
 303 #endif
 304
 305 /*
 306  * all boards
 307  */
 308 static const struct board_info __initdata *bcm963xx_boards[] = {
 309 #ifdef CONFIG_BCM63XX_CPU_6338
 310         &board_96338gw,
 311         &board_96338w,
 312 #endif
 313 #ifdef CONFIG_BCM63XX_CPU_6345
 314         &board_96345gw2,
 315 #endif
 316 #ifdef CONFIG_BCM63XX_CPU_6348
 317         &board_96348r,
 318         &board_96348gw,
 319         &board_96348gw_10,
 320         &board_96348gw_11,
 321         &board_FAST2404,
 322         &board_DV201AMR,
 323         &board_96348gw_a,
 324 #endif
 325
 326 #ifdef CONFIG_BCM63XX_CPU_6358
 327         &board_96358vw,
 328         &board_96358vw2,
 329         &board_AGPFS0,
 330 #endif
 331 };
 332
 333 /*
 334  * early init callback, read nvram data from flash and checksum it
 335  */
 336 void __init board_prom_init(void)
 337 {
 338         unsigned int check_len, i;
 339         u8 *boot_addr, *cfe, *p;
 340         char cfe_version[32];
 341         u32 val;
 342
 343         /* read base address of boot chip select (0)
 344          * 6338/6345 does not have MPI but boots from standard
 345          * MIPS Flash address */
 346         if (BCMCPU_IS_6345())
 347                 val = 0x1fc00000;
 348         else {
 349                 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
 350                 val &= MPI_CSBASE_BASE_MASK;
 351         }
 352         boot_addr = (u8 *)KSEG1ADDR(val);
 353
 354         /* dump cfe version */
 355         cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
 356         if (!memcmp(cfe, "cfe-v", 5))
 357                 snprintf(cfe_version, sizeof(cfe_version), "%u.%u.%u-%u.%u",
 358                          cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
 359         else
 360                 strcpy(cfe_version, "unknown");
 361         printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
 362
 363         /* extract nvram data */
 364         memcpy(&nvram, boot_addr + BCM963XX_NVRAM_OFFSET, sizeof(nvram));
 365
 366         /* check checksum before using data */
 367         if (nvram.version <= 4)
 368                 check_len = offsetof(struct bcm963xx_nvram, checksum_old);
 369         else
 370                 check_len = sizeof(nvram);
 371         val = 0;
 372         p = (u8 *)&nvram;
 373         while (check_len--)
 374                 val += *p;
 375         if (val) {
 376                 printk(KERN_ERR PFX "invalid nvram checksum\n");
 377                 return;
 378         }
 379
 380         /* find board by name */
 381         for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
 382                 if (strncmp(nvram.name, bcm963xx_boards[i]->name,
 383                             sizeof(nvram.name)))
 384                         continue;
 385                 /* copy, board desc array is marked initdata */
 386                 memcpy(&board, bcm963xx_boards[i], sizeof(board));
 387                 break;
 388         }
 389
 390         /* bail out if board is not found, will complain later */
 391         if (!board.name[0]) {
 392                 char name[17];
 393                 memcpy(name, nvram.name, 16);
 394                 name[16] = 0;
 395                 printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
 396                        name);
 397                 return;
 398         }
 399
 400         /* setup pin multiplexing depending on board enabled device,
 401          * this has to be done this early since PCI init is done
 402          * inside arch_initcall */
 403         val = 0;
 404 #ifdef CONFIG_PCI
 405         if (board.has_pci) {
 406                 bcm63xx_pci_enabled = 1;
 407                 if (BCMCPU_IS_6348())
 408                         val |= GPIO_MODE_6348_G2_PCI;
 409         }
 410 #endif
 411         if (board.has_pccard) {
 412                 if (BCMCPU_IS_6348())
 413                         val |= GPIO_MODE_6348_G1_MII_PCCARD;
 414         }
 415
 416         if (board.has_enet0 && !board.enet0.use_internal_phy) {
 417                 if (BCMCPU_IS_6348())
 418                         val |= GPIO_MODE_6348_G3_EXT_MII |
 419                                 GPIO_MODE_6348_G0_EXT_MII;
 420         }
 421
 422         if (board.has_enet1 && !board.enet1.use_internal_phy) {
 423                 if (BCMCPU_IS_6348())
 424                         val |= GPIO_MODE_6348_G3_EXT_MII |
 425                                 GPIO_MODE_6348_G0_EXT_MII;
 426         }
 427
 428         bcm_gpio_writel(val, GPIO_MODE_REG);
 429 }
 430
 431 /*
 432  * second stage init callback, good time to panic if we couldn't
 433  * identify on which board we're running since early printk is working
 434  */
 435 void __init board_setup(void)
 436 {
 437         if (!board.name[0])
 438                 panic("unable to detect bcm963xx board");
 439         printk(KERN_INFO PFX "board name: %s\n", board.name);
 440
 441         /* make sure we're running on expected cpu */
 442         if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
 443                 panic("unexpected CPU for bcm963xx board");
 444 }
 445
 446 /*
 447  * return board name for /proc/cpuinfo
 448  */
 449 const char *board_get_name(void)
 450 {
 451         return board.name;
 452 }
 453
 454 /*
 455  * register & return a new board mac address
 456  */
 457 static int board_get_mac_address(u8 *mac)
 458 {
 459         u8 *p;
 460         int count;
 461
 462         if (mac_addr_used >= nvram.mac_addr_count) {
 463                 printk(KERN_ERR PFX "not enough mac address\n");
 464                 return -ENODEV;
 465         }
 466
 467         memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
 468         p = mac + ETH_ALEN - 1;
 469         count = mac_addr_used;
 470
 471         while (count--) {
 472                 do {
 473                         (*p)++;
 474                         if (*p != 0)
 475                                 break;
 476                         p--;
 477                 } while (p != mac);
 478         }
 479
 480         if (p == mac) {
 481                 printk(KERN_ERR PFX "unable to fetch mac address\n");
 482                 return -ENODEV;
 483         }
 484
 485         mac_addr_used++;
 486         return 0;
 487 }
 488
 489 static struct resource mtd_resources[] = {
 490         {
 491                 .start          = 0,    /* filled at runtime */
 492                 .end            = 0,    /* filled at runtime */
 493                 .flags          = IORESOURCE_MEM,
 494         }
 495 };
 496
 497 static struct platform_device mtd_dev = {
 498         .name                   = "bcm963xx-flash",
 499         .resource               = mtd_resources,
 500         .num_resources          = ARRAY_SIZE(mtd_resources),
 501 };
 502
 503 /*
 504  * Register a sane SPROMv2 to make the on-board
 505  * bcm4318 WLAN work
 506  */
 507 static struct ssb_sprom bcm63xx_sprom = {
 508         .revision               = 0x02,
 509         .board_rev              = 0x17,
 510         .country_code           = 0x0,
 511         .ant_available_bg       = 0x3,
 512         .pa0b0                  = 0x15ae,
 513         .pa0b1                  = 0xfa85,
 514         .pa0b2                  = 0xfe8d,
 515         .pa1b0                  = 0xffff,
 516         .pa1b1                  = 0xffff,
 517         .pa1b2                  = 0xffff,
 518         .gpio0                  = 0xff,
 519         .gpio1                  = 0xff,
 520         .gpio2                  = 0xff,
 521         .gpio3                  = 0xff,
 522         .maxpwr_bg              = 0x004c,
 523         .itssi_bg               = 0x00,
 524         .boardflags_lo          = 0x2848,
 525         .boardflags_hi          = 0x0000,
 526 };
 527
 528 static struct resource gpiodev_resource = {
 529         .start                  = 0xFFFFFFFF,
 530 };
 531
 532 /*
 533  * third stage init callback, register all board devices.
 534  */
 535 int __init board_register_devices(void)
 536 {
 537         u32 val;
 538
 539         bcm63xx_uart_register();
 540         bcm63xx_wdt_register();
 541         bcm63xx_spi_register();
 542
 543         if (board.has_pccard)
 544                 bcm63xx_pcmcia_register();
 545
 546         if (board.has_enet0 &&
 547             !board_get_mac_address(board.enet0.mac_addr))
 548                 bcm63xx_enet_register(0, &board.enet0);
 549
 550         if (board.has_enet1 &&
 551             !board_get_mac_address(board.enet1.mac_addr))
 552                 bcm63xx_enet_register(1, &board.enet1);
 553
 554         if (board.has_ohci0)
 555                 bcm63xx_ohci_register();
 556
 557         if (board.has_ehci0)
 558                 bcm63xx_ehci_register();
 559
 560         if (board.has_udc0)
 561                 bcm63xx_udc_register();
 562         /* Generate MAC address for WLAN and
 563          * register our SPROM */
 564 #ifdef CONFIG_PCI
 565         if (!board_get_mac_address(bcm63xx_sprom.il0mac)) {
 566                 memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN);
 567                 memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
 568                 if (ssb_arch_set_fallback_sprom(&bcm63xx_sprom) < 0)
 569                         printk(KERN_ERR "failed to register fallback SPROM\n");
 570         }
 571 #endif
 572
 573         /* read base address of boot chip select (0) */
 574         if (BCMCPU_IS_6345())
 575                 val = 0x1fc0000;
 576         else {
 577                 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
 578                 val &= MPI_CSBASE_BASE_MASK;
 579         }
 580         mtd_resources[0].start = val;
 581         mtd_resources[0].end = 0x1FFFFFFF;
 582
 583         platform_device_register(&mtd_dev);
 584
 585         /* Register GPIODEV */
 586         platform_device_register_simple("GPIODEV", 0, &gpiodev_resource, 1);
 587
 588         return 0;
 589 }
 590