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                 .has_phy                = 1,
  52                 .use_internal_phy       = 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 };
  64 #endif
  65
  66 /*
  67  * known 6348 boards
  68  */
  69 #ifdef CONFIG_BCM63XX_CPU_6348
  70 static struct board_info __initdata board_96348r = {
  71         .name                           = "96348R",
  72         .expected_cpu_id                = 0x6348,
  73
  74         .has_enet0                      = 1,
  75         .has_pci                        = 1,
  76
  77         .enet0 = {
  78                 .has_phy                = 1,
  79                 .use_internal_phy       = 1,
  80         },
  81 };
  82
  83 static struct board_info __initdata board_96348gw_10 = {
  84         .name                           = "96348GW-10",
  85         .expected_cpu_id                = 0x6348,
  86
  87         .has_enet0                      = 1,
  88         .has_enet1                      = 1,
  89         .has_pci                        = 1,
  90
  91         .enet0 = {
  92                 .has_phy                = 1,
  93                 .use_internal_phy       = 1,
  94         },
  95         .enet1 = {
  96                 .force_speed_100        = 1,
  97                 .force_duplex_full      = 1,
  98         },
  99
 100         .has_ohci0                      = 1,
 101         .has_pccard                     = 1,
 102         .has_ehci0                      = 1,
 103 };
 104
 105 static struct board_info __initdata board_96348gw_11 = {
 106         .name                           = "96348GW-11",
 107         .expected_cpu_id                = 0x6348,
 108
 109         .has_enet0                      = 1,
 110         .has_enet1                      = 1,
 111         .has_pci                        = 1,
 112
 113         .enet0 = {
 114                 .has_phy                = 1,
 115                 .use_internal_phy       = 1,
 116         },
 117
 118         .enet1 = {
 119                 .force_speed_100        = 1,
 120                 .force_duplex_full      = 1,
 121         },
 122
 123
 124         .has_ohci0 = 1,
 125         .has_pccard = 1,
 126         .has_ehci0 = 1,
 127 };
 128
 129 static struct board_info __initdata board_96348gw = {
 130         .name                           = "96348GW",
 131         .expected_cpu_id                = 0x6348,
 132
 133         .has_enet0                      = 1,
 134         .has_enet1                      = 1,
 135         .has_pci                        = 1,
 136
 137         .enet0 = {
 138                 .has_phy                = 1,
 139                 .use_internal_phy       = 1,
 140         },
 141         .enet1 = {
 142                 .force_speed_100        = 1,
 143                 .force_duplex_full      = 1,
 144         },
 145
 146         .has_ohci0 = 1,
 147 };
 148
 149 static struct board_info __initdata board_FAST2404 = {
 150         .name                           = "F@ST2404",
 151         .expected_cpu_id                = 0x6348,
 152
 153         .has_enet0                      = 1,
 154         .has_enet1                      = 1,
 155         .has_pci                        = 1,
 156
 157         .enet0 = {
 158                 .has_phy                = 1,
 159                 .use_internal_phy       = 1,
 160         },
 161
 162         .enet1 = {
 163                 .force_speed_100        = 1,
 164                 .force_duplex_full      = 1,
 165         },
 166
 167
 168         .has_ohci0 = 1,
 169         .has_pccard = 1,
 170         .has_ehci0 = 1,
 171 };
 172
 173 static struct board_info __initdata board_DV201AMR = {
 174         .name                           = "DV201AMR",
 175         .expected_cpu_id                = 0x6348,
 176
 177         .has_pci                        = 1,
 178         .has_ohci0                      = 1,
 179         .has_udc0                       = 1,
 180
 181         .has_enet0                      = 1,
 182         .has_enet1                      = 1,
 183         .enet0 = {
 184                 .has_phy                = 1,
 185                 .use_internal_phy       = 1,
 186         },
 187         .enet1 = {
 188                 .force_speed_100        = 1,
 189                 .force_duplex_full      = 1,
 190         },
 191 };
 192
 193 static struct board_info __initdata board_96348gw_a = {
 194         .name                           = "96348GW-A",
 195         .expected_cpu_id                = 0x6348,
 196
 197         .has_enet0                      = 1,
 198         .has_enet1                      = 1,
 199         .has_pci                        = 1,
 200
 201         .enet0 = {
 202                 .has_phy                = 1,
 203                 .use_internal_phy       = 1,
 204         },
 205         .enet1 = {
 206                 .force_speed_100        = 1,
 207                 .force_duplex_full      = 1,
 208         },
 209
 210         .has_ohci0 = 1,
 211 };
 212
 213
 214 #endif
 215
 216 /*
 217  * known 6358 boards
 218  */
 219 #ifdef CONFIG_BCM63XX_CPU_6358
 220 static struct board_info __initdata board_96358vw = {
 221         .name                           = "96358VW",
 222         .expected_cpu_id                = 0x6358,
 223
 224         .has_enet0                      = 1,
 225         .has_enet1                      = 1,
 226         .has_pci                        = 1,
 227
 228         .enet0 = {
 229                 .has_phy                = 1,
 230                 .use_internal_phy       = 1,
 231         },
 232
 233         .enet1 = {
 234                 .force_speed_100        = 1,
 235                 .force_duplex_full      = 1,
 236         },
 237
 238
 239         .has_ohci0 = 1,
 240         .has_pccard = 1,
 241         .has_ehci0 = 1,
 242 };
 243
 244 static struct board_info __initdata board_96358vw2 = {
 245         .name                           = "96358VW2",
 246         .expected_cpu_id                = 0x6358,
 247
 248         .has_enet0                      = 1,
 249         .has_enet1                      = 1,
 250         .has_pci                        = 1,
 251
 252         .enet0 = {
 253                 .has_phy                = 1,
 254                 .use_internal_phy       = 1,
 255         },
 256
 257         .enet1 = {
 258                 .force_speed_100        = 1,
 259                 .force_duplex_full      = 1,
 260         },
 261
 262
 263         .has_ohci0 = 1,
 264         .has_pccard = 1,
 265         .has_ehci0 = 1,
 266 };
 267
 268 static struct board_info __initdata board_AGPFS0 = {
 269         .name                           = "AGPF-S0",
 270         .expected_cpu_id                = 0x6358,
 271
 272         .has_enet0                      = 1,
 273         .has_enet1                      = 1,
 274         .has_pci                        = 1,
 275
 276         .enet0 = {
 277                 .has_phy                = 1,
 278                 .use_internal_phy       = 1,
 279         },
 280
 281         .enet1 = {
 282                 .force_speed_100        = 1,
 283                 .force_duplex_full      = 1,
 284         },
 285
 286         .has_ohci0 = 1,
 287         .has_ehci0 = 1,
 288 };
 289 #endif
 290
 291 /*
 292  * all boards
 293  */
 294 static const struct board_info __initdata *bcm963xx_boards[] = {
 295 #ifdef CONFIG_BCM63XX_CPU_6338
 296         &board_96338gw,
 297         &board_96338w,
 298 #endif
 299 #ifdef CONFIG_BCM63XX_CPU_6348
 300         &board_96348r,
 301         &board_96348gw,
 302         &board_96348gw_10,
 303         &board_96348gw_11,
 304         &board_FAST2404,
 305         &board_DV201AMR,
 306         &board_96348gw_a,
 307 #endif
 308
 309 #ifdef CONFIG_BCM63XX_CPU_6358
 310         &board_96358vw,
 311         &board_96358vw2,
 312         &board_AGPFS0,
 313 #endif
 314 };
 315
 316 /*
 317  * early init callback, read nvram data from flash and checksum it
 318  */
 319 void __init board_prom_init(void)
 320 {
 321         unsigned int check_len, i;
 322         u8 *boot_addr, *cfe, *p;
 323         char cfe_version[32];
 324         u32 val;
 325
 326         /* read base address of boot chip select (0)
 327          * 6338/6345 does not have MPI but boots from standard
 328          * MIPS Flash address */
 329         if (BCMCPU_IS_6338() || BCMCPU_IS_6345())
 330                 val = 0x1fc00000;
 331         else {
 332                 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
 333                 val &= MPI_CSBASE_BASE_MASK;
 334         }
 335         boot_addr = (u8 *)KSEG1ADDR(val);
 336
 337         /* dump cfe version */
 338         cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
 339         if (!memcmp(cfe, "cfe-v", 5))
 340                 snprintf(cfe_version, sizeof(cfe_version), "%u.%u.%u-%u.%u",
 341                          cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
 342         else
 343                 strcpy(cfe_version, "unknown");
 344         printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
 345
 346         /* extract nvram data */
 347         memcpy(&nvram, boot_addr + BCM963XX_NVRAM_OFFSET, sizeof(nvram));
 348
 349         /* check checksum before using data */
 350         if (nvram.version <= 4)
 351                 check_len = offsetof(struct bcm963xx_nvram, checksum_old);
 352         else
 353                 check_len = sizeof(nvram);
 354         val = 0;
 355         p = (u8 *)&nvram;
 356         while (check_len--)
 357                 val += *p;
 358         if (val) {
 359                 printk(KERN_ERR PFX "invalid nvram checksum\n");
 360                 return;
 361         }
 362
 363         /* find board by name */
 364         for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
 365                 if (strncmp(nvram.name, bcm963xx_boards[i]->name,
 366                             sizeof(nvram.name)))
 367                         continue;
 368                 /* copy, board desc array is marked initdata */
 369                 memcpy(&board, bcm963xx_boards[i], sizeof(board));
 370                 break;
 371         }
 372
 373         /* bail out if board is not found, will complain later */
 374         if (!board.name[0]) {
 375                 char name[17];
 376                 memcpy(name, nvram.name, 16);
 377                 name[16] = 0;
 378                 printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
 379                        name);
 380                 return;
 381         }
 382
 383         /* setup pin multiplexing depending on board enabled device,
 384          * this has to be done this early since PCI init is done
 385          * inside arch_initcall */
 386         val = 0;
 387 #ifdef CONFIG_PCI
 388         if (board.has_pci) {
 389                 bcm63xx_pci_enabled = 1;
 390                 if (BCMCPU_IS_6348())
 391                         val |= GPIO_MODE_6348_G2_PCI;
 392         }
 393 #endif
 394         if (board.has_pccard) {
 395                 if (BCMCPU_IS_6348())
 396                         val |= GPIO_MODE_6348_G1_MII_PCCARD;
 397         }
 398
 399         if (board.has_enet0 && !board.enet0.use_internal_phy) {
 400                 if (BCMCPU_IS_6348())
 401                         val |= GPIO_MODE_6348_G3_EXT_MII |
 402                                 GPIO_MODE_6348_G0_EXT_MII;
 403         }
 404
 405         if (board.has_enet1 && !board.enet1.use_internal_phy) {
 406                 if (BCMCPU_IS_6348())
 407                         val |= GPIO_MODE_6348_G3_EXT_MII |
 408                                 GPIO_MODE_6348_G0_EXT_MII;
 409         }
 410
 411         bcm_gpio_writel(val, GPIO_MODE_REG);
 412 }
 413
 414 /*
 415  * second stage init callback, good time to panic if we couldn't
 416  * identify on which board we're running since early printk is working
 417  */
 418 void __init board_setup(void)
 419 {
 420         if (!board.name[0])
 421                 panic("unable to detect bcm963xx board");
 422         printk(KERN_INFO PFX "board name: %s\n", board.name);
 423
 424         /* make sure we're running on expected cpu */
 425         if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
 426                 panic("unexpected CPU for bcm963xx board");
 427 }
 428
 429 /*
 430  * return board name for /proc/cpuinfo
 431  */
 432 const char *board_get_name(void)
 433 {
 434         return board.name;
 435 }
 436
 437 /*
 438  * register & return a new board mac address
 439  */
 440 static int board_get_mac_address(u8 *mac)
 441 {
 442         u8 *p;
 443         int count;
 444
 445         if (mac_addr_used >= nvram.mac_addr_count) {
 446                 printk(KERN_ERR PFX "not enough mac address\n");
 447                 return -ENODEV;
 448         }
 449
 450         memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
 451         p = mac + ETH_ALEN - 1;
 452         count = mac_addr_used;
 453
 454         while (count--) {
 455                 do {
 456                         (*p)++;
 457                         if (*p != 0)
 458                                 break;
 459                         p--;
 460                 } while (p != mac);
 461         }
 462
 463         if (p == mac) {
 464                 printk(KERN_ERR PFX "unable to fetch mac address\n");
 465                 return -ENODEV;
 466         }
 467
 468         mac_addr_used++;
 469         return 0;
 470 }
 471
 472 static struct resource mtd_resources[] = {
 473         {
 474                 .start          = 0,    /* filled at runtime */
 475                 .end            = 0,    /* filled at runtime */
 476                 .flags          = IORESOURCE_MEM,
 477         }
 478 };
 479
 480 static struct platform_device mtd_dev = {
 481         .name                   = "bcm963xx-flash",
 482         .resource               = mtd_resources,
 483         .num_resources          = ARRAY_SIZE(mtd_resources),
 484 };
 485
 486 /*
 487  * Register a sane SPROMv2 to make the on-board
 488  * bcm4318 WLAN work
 489  */
 490 static struct ssb_sprom bcm63xx_sprom = {
 491         .revision               = 0x02,
 492         .board_rev              = 0x17,
 493         .country_code           = 0x0,
 494         .ant_available_bg       = 0x3,
 495         .pa0b0                  = 0x15ae,
 496         .pa0b1                  = 0xfa85,
 497         .pa0b2                  = 0xfe8d,
 498         .pa1b0                  = 0xffff,
 499         .pa1b1                  = 0xffff,
 500         .pa1b2                  = 0xffff,
 501         .gpio0                  = 0xff,
 502         .gpio1                  = 0xff,
 503         .gpio2                  = 0xff,
 504         .gpio3                  = 0xff,
 505         .maxpwr_bg              = 0x004c,
 506         .itssi_bg               = 0x00,
 507         .boardflags_lo          = 0x2848,
 508         .boardflags_hi          = 0x0000,
 509 };
 510
 511 static struct resource gpiodev_resource = {
 512         .start                  = 0xFFFFFFFF,
 513 };
 514
 515 /*
 516  * third stage init callback, register all board devices.
 517  */
 518 int __init board_register_devices(void)
 519 {
 520         u32 val;
 521
 522         bcm63xx_uart_register();
 523         bcm63xx_wdt_register();
 524         bcm63xx_spi_register();
 525
 526         if (board.has_pccard)
 527                 bcm63xx_pcmcia_register();
 528
 529         if (board.has_enet0 &&
 530             !board_get_mac_address(board.enet0.mac_addr))
 531                 bcm63xx_enet_register(0, &board.enet0);
 532
 533         if (board.has_enet1 &&
 534             !board_get_mac_address(board.enet1.mac_addr))
 535                 bcm63xx_enet_register(1, &board.enet1);
 536
 537         if (board.has_ohci0)
 538                 bcm63xx_ohci_register();
 539
 540         if (board.has_ehci0)
 541                 bcm63xx_ehci_register();
 542
 543         if (board.has_udc0)
 544                 bcm63xx_udc_register();
 545         /* Generate MAC address for WLAN and
 546          * register our SPROM */
 547 #ifdef CONFIG_PCI
 548         if (!board_get_mac_address(bcm63xx_sprom.il0mac)) {
 549                 memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN);
 550                 memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
 551                 if (ssb_arch_set_fallback_sprom(&bcm63xx_sprom) < 0)
 552                         printk(KERN_ERR "failed to register fallback SPROM\n");
 553         }
 554 #endif
 555
 556         /* read base address of boot chip select (0) */
 557         if (BCMCPU_IS_6338() || BCMCPU_IS_6345())
 558                 val = 0x1fc0000;
 559         else {
 560                 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
 561                 val &= MPI_CSBASE_BASE_MASK;
 562         }
 563         mtd_resources[0].start = val;
 564         mtd_resources[0].end = 0x1FFFFFFF;
 565
 566         platform_device_register(&mtd_dev);
 567
 568         /* Register GPIODEV */
 569         platform_device_register_simple("GPIODEV", 0, &gpiodev_resource, 1);
 570
 571         return 0;
 572 }
 573