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_dsp.h>
  28 #include <bcm63xx_dev_pcmcia.h>
  29 #include <bcm63xx_dev_usb_ohci.h>
  30 #include <bcm63xx_dev_usb_ehci.h>
  31 #include <bcm63xx_dev_usb_udc.h>
  32 #include <bcm63xx_dev_spi.h>
  33 #include <board_bcm963xx.h>
  34
  35 #define PFX     "board_bcm963xx: "
  36
  37 static struct bcm963xx_nvram nvram;
  38 static unsigned int mac_addr_used = 0;
  39 static struct board_info board;
  40
  41 /*
  42  * known 6338 boards
  43  */
  44
  45 #ifdef CONFIG_BCM63XX_CPU_6338
  46 static struct board_info __initdata board_96338gw = {
  47         .name                           = "96338GW",
  48         .expected_cpu_id                = 0x6338,
  49
  50         .has_enet0                      = 1,
  51         .enet0 = {
  52                 .force_speed_100        = 1,
  53                 .force_duplex_full      = 1,
  54         },
  55
  56         .has_ohci0                      = 1,
  57 };
  58
  59 static struct board_info __initdata board_96338w = {
  60         .name                           = "96338W",
  61         .expected_cpu_id                = 0x6338,
  62
  63         .has_enet0                      = 1,
  64         .enet0 = {
  65                 .force_speed_100        = 1,
  66                 .force_duplex_full      = 1,
  67         }
  68 };
  69 #endif
  70
  71 /*
  72  * known 6345 boards
  73  */
  74 #ifdef CONFIG_BCM63XX_CPU_6345
  75 static struct board_info __initdata board_96345gw2 = {
  76         .name                           = "96345GW2",
  77         .expected_cpu_id                = 0x6345,
  78 };
  79 #endif
  80
  81 /*
  82  * known 6348 boards
  83  */
  84 #ifdef CONFIG_BCM63XX_CPU_6348
  85 static struct board_info __initdata board_96348r = {
  86         .name                           = "96348R",
  87         .expected_cpu_id                = 0x6348,
  88
  89         .has_enet0                      = 1,
  90         .has_pci                        = 1,
  91
  92         .enet0 = {
  93                 .has_phy                = 1,
  94                 .use_internal_phy       = 1,
  95         },
  96 };
  97
  98 static struct board_info __initdata board_96348gw_10 = {
  99         .name                           = "96348GW-10",
 100         .expected_cpu_id                = 0x6348,
 101
 102         .has_enet0                      = 1,
 103         .has_enet1                      = 1,
 104         .has_pci                        = 1,
 105
 106         .enet0 = {
 107                 .has_phy                = 1,
 108                 .use_internal_phy       = 1,
 109         },
 110         .enet1 = {
 111                 .force_speed_100        = 1,
 112                 .force_duplex_full      = 1,
 113         },
 114
 115         .has_ohci0                      = 1,
 116         .has_pccard                     = 1,
 117         .has_ehci0                      = 1,
 118
 119         .has_dsp                        = 1,
 120         .dsp = {
 121                 .gpio_rst               = 6,
 122                 .gpio_int               = 34,
 123                 .cs                     = 2,
 124                 .ext_irq                = 2,
 125         },
 126 };
 127
 128 static struct board_info __initdata board_96348gw_11 = {
 129         .name                           = "96348GW-11",
 130         .expected_cpu_id                = 0x6348,
 131
 132         .has_enet0                      = 1,
 133         .has_enet1                      = 1,
 134         .has_pci                        = 1,
 135
 136         .enet0 = {
 137                 .has_phy                = 1,
 138                 .use_internal_phy       = 1,
 139         },
 140
 141         .enet1 = {
 142                 .force_speed_100        = 1,
 143                 .force_duplex_full      = 1,
 144         },
 145
 146
 147         .has_ohci0 = 1,
 148         .has_pccard = 1,
 149         .has_ehci0 = 1,
 150 };
 151
 152 static struct board_info __initdata board_96348gw = {
 153         .name                           = "96348GW",
 154         .expected_cpu_id                = 0x6348,
 155
 156         .has_enet0                      = 1,
 157         .has_enet1                      = 1,
 158         .has_pci                        = 1,
 159
 160         .enet0 = {
 161                 .has_phy                = 1,
 162                 .use_internal_phy       = 1,
 163         },
 164         .enet1 = {
 165                 .force_speed_100        = 1,
 166                 .force_duplex_full      = 1,
 167         },
 168
 169         .has_ohci0                      = 1,
 170         .has_dsp                        = 1,
 171
 172         .dsp = {
 173                 .gpio_rst               = 6,
 174                 .gpio_int               = 34,
 175                 .ext_irq                = 2,
 176                 .cs                     = 2,
 177         },
 178 };
 179
 180 static struct board_info __initdata board_FAST2404 = {
 181         .name                           = "F@ST2404",
 182         .expected_cpu_id                = 0x6348,
 183
 184         .has_enet0                      = 1,
 185         .has_enet1                      = 1,
 186         .has_pci                        = 1,
 187
 188         .enet0 = {
 189                 .has_phy                = 1,
 190                 .use_internal_phy       = 1,
 191         },
 192
 193         .enet1 = {
 194                 .force_speed_100        = 1,
 195                 .force_duplex_full      = 1,
 196         },
 197
 198
 199         .has_ohci0 = 1,
 200         .has_pccard = 1,
 201         .has_ehci0 = 1,
 202 };
 203
 204 static struct board_info __initdata board_DV201AMR = {
 205         .name                           = "DV201AMR",
 206         .expected_cpu_id                = 0x6348,
 207
 208         .has_pci                        = 1,
 209         .has_ohci0                      = 1,
 210         .has_udc0                       = 1,
 211
 212         .has_enet0                      = 1,
 213         .has_enet1                      = 1,
 214         .enet0 = {
 215                 .has_phy                = 1,
 216                 .use_internal_phy       = 1,
 217         },
 218         .enet1 = {
 219                 .force_speed_100        = 1,
 220                 .force_duplex_full      = 1,
 221         },
 222 };
 223
 224 static struct board_info __initdata board_96348gw_a = {
 225         .name                           = "96348GW-A",
 226         .expected_cpu_id                = 0x6348,
 227
 228         .has_enet0                      = 1,
 229         .has_enet1                      = 1,
 230         .has_pci                        = 1,
 231
 232         .enet0 = {
 233                 .has_phy                = 1,
 234                 .use_internal_phy       = 1,
 235         },
 236         .enet1 = {
 237                 .force_speed_100        = 1,
 238                 .force_duplex_full      = 1,
 239         },
 240
 241         .has_ohci0 = 1,
 242 };
 243
 244
 245 #endif
 246
 247 /*
 248  * known 6358 boards
 249  */
 250 #ifdef CONFIG_BCM63XX_CPU_6358
 251 static struct board_info __initdata board_96358vw = {
 252         .name                           = "96358VW",
 253         .expected_cpu_id                = 0x6358,
 254
 255         .has_enet0                      = 1,
 256         .has_enet1                      = 1,
 257         .has_pci                        = 1,
 258
 259         .enet0 = {
 260                 .has_phy                = 1,
 261                 .use_internal_phy       = 1,
 262         },
 263
 264         .enet1 = {
 265                 .force_speed_100        = 1,
 266                 .force_duplex_full      = 1,
 267         },
 268
 269
 270         .has_ohci0 = 1,
 271         .has_pccard = 1,
 272         .has_ehci0 = 1,
 273 };
 274
 275 static struct board_info __initdata board_96358vw2 = {
 276         .name                           = "96358VW2",
 277         .expected_cpu_id                = 0x6358,
 278
 279         .has_enet0                      = 1,
 280         .has_enet1                      = 1,
 281         .has_pci                        = 1,
 282
 283         .enet0 = {
 284                 .has_phy                = 1,
 285                 .use_internal_phy       = 1,
 286         },
 287
 288         .enet1 = {
 289                 .force_speed_100        = 1,
 290                 .force_duplex_full      = 1,
 291         },
 292
 293
 294         .has_ohci0 = 1,
 295         .has_pccard = 1,
 296         .has_ehci0 = 1,
 297 };
 298
 299 static struct board_info __initdata board_AGPFS0 = {
 300         .name                           = "AGPF-S0",
 301         .expected_cpu_id                = 0x6358,
 302
 303         .has_enet0                      = 1,
 304         .has_enet1                      = 1,
 305         .has_pci                        = 1,
 306
 307         .enet0 = {
 308                 .has_phy                = 1,
 309                 .use_internal_phy       = 1,
 310         },
 311
 312         .enet1 = {
 313                 .force_speed_100        = 1,
 314                 .force_duplex_full      = 1,
 315         },
 316
 317         .has_ohci0 = 1,
 318         .has_ehci0 = 1,
 319 };
 320 #endif
 321
 322 /*
 323  * all boards
 324  */
 325 static const struct board_info __initdata *bcm963xx_boards[] = {
 326 #ifdef CONFIG_BCM63XX_CPU_6338
 327         &board_96338gw,
 328         &board_96338w,
 329 #endif
 330 #ifdef CONFIG_BCM63XX_CPU_6345
 331         &board_96345gw2,
 332 #endif
 333 #ifdef CONFIG_BCM63XX_CPU_6348
 334         &board_96348r,
 335         &board_96348gw,
 336         &board_96348gw_10,
 337         &board_96348gw_11,
 338         &board_FAST2404,
 339         &board_DV201AMR,
 340         &board_96348gw_a,
 341 #endif
 342
 343 #ifdef CONFIG_BCM63XX_CPU_6358
 344         &board_96358vw,
 345         &board_96358vw2,
 346         &board_AGPFS0,
 347 #endif
 348 };
 349
 350 /*
 351  * early init callback, read nvram data from flash and checksum it
 352  */
 353 void __init board_prom_init(void)
 354 {
 355         unsigned int check_len, i;
 356         u8 *boot_addr, *cfe, *p;
 357         char cfe_version[32];
 358         u32 val;
 359
 360         /* read base address of boot chip select (0)
 361          * 6345 does not have MPI but boots from standard
 362          * MIPS Flash address */
 363         if (BCMCPU_IS_6345())
 364                 val = 0x1fc00000;
 365         else {
 366                 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
 367                 val &= MPI_CSBASE_BASE_MASK;
 368         }
 369         boot_addr = (u8 *)KSEG1ADDR(val);
 370
 371         /* dump cfe version */
 372         cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
 373         if (!memcmp(cfe, "cfe-v", 5))
 374                 snprintf(cfe_version, sizeof(cfe_version), "%u.%u.%u-%u.%u",
 375                          cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
 376         else
 377                 strcpy(cfe_version, "unknown");
 378         printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
 379
 380         /* extract nvram data */
 381         memcpy(&nvram, boot_addr + BCM963XX_NVRAM_OFFSET, sizeof(nvram));
 382
 383         /* check checksum before using data */
 384         if (nvram.version <= 4)
 385                 check_len = offsetof(struct bcm963xx_nvram, checksum_old);
 386         else
 387                 check_len = sizeof(nvram);
 388         val = 0;
 389         p = (u8 *)&nvram;
 390         while (check_len--)
 391                 val += *p;
 392         if (val) {
 393                 printk(KERN_ERR PFX "invalid nvram checksum\n");
 394                 return;
 395         }
 396
 397         /* find board by name */
 398         for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
 399                 if (strncmp(nvram.name, bcm963xx_boards[i]->name,
 400                             sizeof(nvram.name)))
 401                         continue;
 402                 /* copy, board desc array is marked initdata */
 403                 memcpy(&board, bcm963xx_boards[i], sizeof(board));
 404                 break;
 405         }
 406
 407         /* bail out if board is not found, will complain later */
 408         if (!board.name[0]) {
 409                 char name[17];
 410                 memcpy(name, nvram.name, 16);
 411                 name[16] = 0;
 412                 printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
 413                        name);
 414                 return;
 415         }
 416
 417         /* setup pin multiplexing depending on board enabled device,
 418          * this has to be done this early since PCI init is done
 419          * inside arch_initcall */
 420         val = 0;
 421 #ifdef CONFIG_PCI
 422         if (board.has_pci) {
 423                 bcm63xx_pci_enabled = 1;
 424                 if (BCMCPU_IS_6348())
 425                         val |= GPIO_MODE_6348_G2_PCI;
 426         }
 427 #endif
 428         if (board.has_pccard) {
 429                 if (BCMCPU_IS_6348())
 430                         val |= GPIO_MODE_6348_G1_MII_PCCARD;
 431         }
 432
 433         if (board.has_enet0 && !board.enet0.use_internal_phy) {
 434                 if (BCMCPU_IS_6348())
 435                         val |= GPIO_MODE_6348_G3_EXT_MII |
 436                                 GPIO_MODE_6348_G0_EXT_MII;
 437         }
 438
 439         if (board.has_enet1 && !board.enet1.use_internal_phy) {
 440                 if (BCMCPU_IS_6348())
 441                         val |= GPIO_MODE_6348_G3_EXT_MII |
 442                                 GPIO_MODE_6348_G0_EXT_MII;
 443         }
 444
 445         bcm_gpio_writel(val, GPIO_MODE_REG);
 446 }
 447
 448 /*
 449  * second stage init callback, good time to panic if we couldn't
 450  * identify on which board we're running since early printk is working
 451  */
 452 void __init board_setup(void)
 453 {
 454         if (!board.name[0])
 455                 panic("unable to detect bcm963xx board");
 456         printk(KERN_INFO PFX "board name: %s\n", board.name);
 457
 458         /* make sure we're running on expected cpu */
 459         if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
 460                 panic("unexpected CPU for bcm963xx board");
 461 }
 462
 463 /*
 464  * return board name for /proc/cpuinfo
 465  */
 466 const char *board_get_name(void)
 467 {
 468         return board.name;
 469 }
 470
 471 /*
 472  * register & return a new board mac address
 473  */
 474 static int board_get_mac_address(u8 *mac)
 475 {
 476         u8 *p;
 477         int count;
 478
 479         if (mac_addr_used >= nvram.mac_addr_count) {
 480                 printk(KERN_ERR PFX "not enough mac address\n");
 481                 return -ENODEV;
 482         }
 483
 484         memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
 485         p = mac + ETH_ALEN - 1;
 486         count = mac_addr_used;
 487
 488         while (count--) {
 489                 do {
 490                         (*p)++;
 491                         if (*p != 0)
 492                                 break;
 493                         p--;
 494                 } while (p != mac);
 495         }
 496
 497         if (p == mac) {
 498                 printk(KERN_ERR PFX "unable to fetch mac address\n");
 499                 return -ENODEV;
 500         }
 501
 502         mac_addr_used++;
 503         return 0;
 504 }
 505
 506 static struct resource mtd_resources[] = {
 507         {
 508                 .start          = 0,    /* filled at runtime */
 509                 .end            = 0,    /* filled at runtime */
 510                 .flags          = IORESOURCE_MEM,
 511         }
 512 };
 513
 514 static struct platform_device mtd_dev = {
 515         .name                   = "bcm963xx-flash",
 516         .resource               = mtd_resources,
 517         .num_resources          = ARRAY_SIZE(mtd_resources),
 518 };
 519
 520 /*
 521  * Register a sane SPROMv2 to make the on-board
 522  * bcm4318 WLAN work
 523  */
 524 static struct ssb_sprom bcm63xx_sprom = {
 525         .revision               = 0x02,
 526         .board_rev              = 0x17,
 527         .country_code           = 0x0,
 528         .ant_available_bg       = 0x3,
 529         .pa0b0                  = 0x15ae,
 530         .pa0b1                  = 0xfa85,
 531         .pa0b2                  = 0xfe8d,
 532         .pa1b0                  = 0xffff,
 533         .pa1b1                  = 0xffff,
 534         .pa1b2                  = 0xffff,
 535         .gpio0                  = 0xff,
 536         .gpio1                  = 0xff,
 537         .gpio2                  = 0xff,
 538         .gpio3                  = 0xff,
 539         .maxpwr_bg              = 0x004c,
 540         .itssi_bg               = 0x00,
 541         .boardflags_lo          = 0x2848,
 542         .boardflags_hi          = 0x0000,
 543 };
 544
 545 static struct resource gpiodev_resource = {
 546         .start                  = 0xFFFFFFFF,
 547 };
 548
 549 /*
 550  * third stage init callback, register all board devices.
 551  */
 552 int __init board_register_devices(void)
 553 {
 554         u32 val;
 555
 556         bcm63xx_uart_register();
 557         bcm63xx_wdt_register();
 558         bcm63xx_spi_register();
 559
 560         if (board.has_pccard)
 561                 bcm63xx_pcmcia_register();
 562
 563         if (board.has_enet0 &&
 564             !board_get_mac_address(board.enet0.mac_addr))
 565                 bcm63xx_enet_register(0, &board.enet0);
 566
 567         if (board.has_enet1 &&
 568             !board_get_mac_address(board.enet1.mac_addr))
 569                 bcm63xx_enet_register(1, &board.enet1);
 570
 571         if (board.has_ohci0)
 572                 bcm63xx_ohci_register();
 573
 574         if (board.has_ehci0)
 575                 bcm63xx_ehci_register();
 576
 577         if (board.has_udc0)
 578                 bcm63xx_udc_register();
 579
 580         if (board.has_dsp)
 581                 bcm63xx_dsp_register(&board.dsp);
 582
 583         /* Generate MAC address for WLAN and
 584          * register our SPROM */
 585 #ifdef CONFIG_PCI
 586         if (!board_get_mac_address(bcm63xx_sprom.il0mac)) {
 587                 memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN);
 588                 memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
 589                 if (ssb_arch_set_fallback_sprom(&bcm63xx_sprom) < 0)
 590                         printk(KERN_ERR "failed to register fallback SPROM\n");
 591         }
 592 #endif
 593
 594         /* read base address of boot chip select (0) */
 595         if (BCMCPU_IS_6345())
 596                 val = 0x1fc0000;
 597         else {
 598                 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
 599                 val &= MPI_CSBASE_BASE_MASK;
 600         }
 601         mtd_resources[0].start = val;
 602         mtd_resources[0].end = 0x1FFFFFFF;
 603
 604         platform_device_register(&mtd_dev);
 605
 606         /* Register GPIODEV */
 607         platform_device_register_simple("GPIODEV", 0, &gpiodev_resource, 1);
 608
 609         return 0;
 610 }
 611