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