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