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