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