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 <asm/addrspace.h>
  17 #include <bcm63xx_board.h>
  18 #include <bcm63xx_cpu.h>
  19 #include <bcm63xx_regs.h>
  20 #include <bcm63xx_io.h>
  21 #include <bcm63xx_board.h>
  22 #include <bcm63xx_dev_pci.h>
  23 #include <bcm63xx_dev_uart.h>
  24 #include <bcm63xx_dev_wdt.h>
  25 #include <bcm63xx_dev_enet.h>
  26 #include <bcm63xx_dev_pcmcia.h>
  27 #include <bcm63xx_dev_usb_ohci.h>
  28 #include <bcm63xx_dev_usb_ehci.h>
  29 #include <board_bcm963xx.h>
  30
  31 #define PFX     "board_bcm963xx: "
  32
  33 static struct bcm963xx_nvram nvram;
  34 static unsigned int mac_addr_used = 0;
  35 static struct board_info board;
  36
  37 /*
  38  * known 6338 boards
  39  */
  40
  41 #ifdef CONFIG_BCM63XX_CPU_6338
  42 static struct board_info __initdata board_96338gw = {
  43         .name                           = "96338GW",
  44         .expected_cpu_id                = 0x6338,
  45
  46         .has_enet0                      = 1,
  47         .enet0 = {
  48                 .has_phy                = 1,
  49                 .use_internal_phy       = 1,
  50         },
  51
  52         .has_ohci0                      = 1,
  53 };
  54 #endif
  55
  56 /*
  57  * known 6348 boards
  58  */
  59 #ifdef CONFIG_BCM63XX_CPU_6348
  60 static struct board_info __initdata board_96348r = {
  61         .name                           = "96348R",
  62         .expected_cpu_id                = 0x6348,
  63
  64         .has_enet0                      = 1,
  65         .has_pci                        = 1,
  66
  67         .enet0 = {
  68                 .has_phy                = 1,
  69                 .use_internal_phy       = 1,
  70         },
  71 };
  72
  73 static struct board_info __initdata board_96348gw_10 = {
  74         .name                           = "96348GW-10",
  75         .expected_cpu_id                = 0x6348,
  76
  77         .has_enet0                      = 1,
  78         .has_enet1                      = 1,
  79         .has_pci                        = 1,
  80
  81         .enet0 = {
  82                 .has_phy                = 1,
  83                 .use_internal_phy       = 1,
  84         },
  85         .enet1 = {
  86                 .force_speed_100        = 1,
  87                 .force_duplex_full      = 1,
  88         },
  89
  90         .has_ohci0                      = 1,
  91         .has_pccard                     = 1,
  92         .has_ehci0                      = 1,
  93 };
  94
  95 static struct board_info __initdata board_96348gw_11 = {
  96         .name                           = "96348GW-11",
  97         .expected_cpu_id                = 0x6348,
  98
  99         .has_enet0                      = 1,
 100         .has_enet1                      = 1,
 101         .has_pci                        = 1,
 102
 103         .enet0 = {
 104                 .has_phy                = 1,
 105                 .use_internal_phy       = 1,
 106         },
 107
 108         .enet1 = {
 109                 .force_speed_100        = 1,
 110                 .force_duplex_full      = 1,
 111         },
 112
 113
 114         .has_ohci0 = 1,
 115         .has_pccard = 1,
 116         .has_ehci0 = 1,
 117 };
 118
 119 static struct board_info __initdata board_96348gw = {
 120         .name                           = "96348GW",
 121         .expected_cpu_id                = 0x6348,
 122
 123         .has_enet0                      = 1,
 124         .has_enet1                      = 1,
 125         .has_pci                        = 1,
 126
 127         .enet0 = {
 128                 .has_phy                = 1,
 129                 .use_internal_phy       = 1,
 130         },
 131         .enet1 = {
 132                 .force_speed_100        = 1,
 133                 .force_duplex_full      = 1,
 134         },
 135
 136         .has_ohci0 = 1,
 137 };
 138
 139 static struct board_info __initdata board_FAST2404 = {
 140         .name                           = "F@ST2404",
 141         .expected_cpu_id                = 0x6348,
 142
 143         .has_enet0                      = 1,
 144         .has_enet1                      = 1,
 145         .has_pci                        = 1,
 146
 147         .enet0 = {
 148                 .has_phy                = 1,
 149                 .use_internal_phy       = 1,
 150         },
 151
 152         .enet1 = {
 153                 .force_speed_100        = 1,
 154                 .force_duplex_full      = 1,
 155         },
 156
 157
 158         .has_ohci0 = 1,
 159         .has_pccard = 1,
 160         .has_ehci0 = 1,
 161 };
 162
 163 static struct board_info __initdata board_DV201AMR = {
 164         .name                           = "DV201AMR",
 165         .expected_cpu_id                = 0x6348,
 166
 167         .has_enet0                      = 1,
 168         .has_enet1                      = 1,
 169         .has_pci                        = 1,
 170
 171         .enet0 = {
 172                 .has_phy                = 1,
 173                 .use_internal_phy       = 1,
 174         },
 175
 176         .enet1 = {
 177                 .force_speed_100        = 1,
 178                 .force_duplex_full      = 1,
 179         },
 180
 181
 182         .has_ohci0 = 1,
 183         .has_pccard = 1,
 184         .has_ehci0 = 1,
 185 };
 186
 187 static struct board_info __initdata board_96348gw_a = {
 188         .name                           = "96348GW-A",
 189         .expected_cpu_id                = 0x6348,
 190
 191         .has_enet0                      = 1,
 192         .has_enet1                      = 1,
 193         .has_pci                        = 1,
 194
 195         .enet0 = {
 196                 .has_phy                = 1,
 197                 .use_internal_phy       = 1,
 198         },
 199         .enet1 = {
 200                 .force_speed_100        = 1,
 201                 .force_duplex_full      = 1,
 202         },
 203
 204         .has_ohci0 = 1,
 205 };
 206
 207
 208 #endif
 209
 210 /*
 211  * known 6358 boards
 212  */
 213 #ifdef CONFIG_BCM63XX_CPU_6358
 214 static struct board_info __initdata board_96358vw = {
 215         .name                           = "96358VW",
 216         .expected_cpu_id                = 0x6358,
 217
 218         .has_enet0                      = 1,
 219         .has_enet1                      = 1,
 220         .has_pci                        = 1,
 221
 222         .enet0 = {
 223                 .has_phy                = 1,
 224                 .use_internal_phy       = 1,
 225         },
 226
 227         .enet1 = {
 228                 .force_speed_100        = 1,
 229                 .force_duplex_full      = 1,
 230         },
 231
 232
 233         .has_ohci0 = 1,
 234         .has_pccard = 1,
 235         .has_ehci0 = 1,
 236 };
 237
 238 static struct board_info __initdata board_96358vw2 = {
 239         .name                           = "96358VW2",
 240         .expected_cpu_id                = 0x6358,
 241
 242         .has_enet0                      = 1,
 243         .has_enet1                      = 1,
 244         .has_pci                        = 1,
 245
 246         .enet0 = {
 247                 .has_phy                = 1,
 248                 .use_internal_phy       = 1,
 249         },
 250
 251         .enet1 = {
 252                 .force_speed_100        = 1,
 253                 .force_duplex_full      = 1,
 254         },
 255
 256
 257         .has_ohci0 = 1,
 258         .has_pccard = 1,
 259         .has_ehci0 = 1,
 260 };
 261 #endif
 262
 263 /*
 264  * all boards
 265  */
 266 static const struct board_info __initdata *bcm963xx_boards[] = {
 267 #ifdef CONFIG_BCM63XX_CPU_6338
 268         &board_96338gw,
 269 #endif
 270 #ifdef CONFIG_BCM63XX_CPU_6348
 271         &board_96348r,
 272         &board_96348gw,
 273         &board_96348gw_10,
 274         &board_96348gw_11,
 275         &board_FAST2404,
 276         &board_DV201AMR,
 277         &board_96348gw_a,
 278 #endif
 279
 280 #ifdef CONFIG_BCM63XX_CPU_6358
 281         &board_96358vw,
 282         &board_96358vw2,
 283 #endif
 284 };
 285
 286 /*
 287  * early init callback, read nvram data from flash and checksum it
 288  */
 289 void __init board_prom_init(void)
 290 {
 291         unsigned int check_len, i;
 292         u8 *boot_addr, *cfe, *p;
 293         char cfe_version[32];
 294         u32 val;
 295
 296         /* read base address of boot chip select (0) */
 297         val = bcm_mpi_readl(MPI_CSBASE_REG(0));
 298         val &= MPI_CSBASE_BASE_MASK;
 299         boot_addr = (u8 *)KSEG1ADDR(val);
 300
 301         /* dump cfe version */
 302         cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
 303         if (!memcmp(cfe, "cfe-v", 5))
 304                 snprintf(cfe_version, sizeof(cfe_version), "%u.%u.%u-%u.%u",
 305                          cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
 306         else
 307                 strcpy(cfe_version, "unknown");
 308         printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
 309
 310         /* extract nvram data */
 311         memcpy(&nvram, boot_addr + BCM963XX_NVRAM_OFFSET, sizeof(nvram));
 312
 313         /* check checksum before using data */
 314         if (nvram.version <= 4)
 315                 check_len = offsetof(struct bcm963xx_nvram, checksum_old);
 316         else
 317                 check_len = sizeof(nvram);
 318         val = 0;
 319         p = (u8 *)&nvram;
 320         while (check_len--)
 321                 val += *p;
 322         if (val) {
 323                 printk(KERN_ERR PFX "invalid nvram checksum\n");
 324                 return;
 325         }
 326
 327         /* find board by name */
 328         for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
 329                 if (strncmp(nvram.name, bcm963xx_boards[i]->name,
 330                             sizeof(nvram.name)))
 331                         continue;
 332                 /* copy, board desc array is marked initdata */
 333                 memcpy(&board, bcm963xx_boards[i], sizeof(board));
 334                 break;
 335         }
 336
 337         /* bail out if board is not found, will complain later */
 338         if (!board.name[0]) {
 339                 char name[17];
 340                 memcpy(name, nvram.name, 16);
 341                 name[16] = 0;
 342                 printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
 343                        name);
 344                 return;
 345         }
 346
 347         /* setup pin multiplexing depending on board enabled device,
 348          * this has to be done this early since PCI init is done
 349          * inside arch_initcall */
 350         val = 0;
 351
 352         if (board.has_pci) {
 353                 bcm63xx_pci_enabled = 1;
 354                 if (BCMCPU_IS_6348())
 355                         val |= GPIO_MODE_6348_G2_PCI;
 356         }
 357
 358         if (board.has_pccard) {
 359                 if (BCMCPU_IS_6348())
 360                         val |= GPIO_MODE_6348_G1_MII_PCCARD;
 361         }
 362
 363         if (board.has_enet0 && !board.enet0.use_internal_phy) {
 364                 if (BCMCPU_IS_6348())
 365                         val |= GPIO_MODE_6348_G3_EXT_MII |
 366                                 GPIO_MODE_6348_G0_EXT_MII;
 367         }
 368
 369         if (board.has_enet1 && !board.enet1.use_internal_phy) {
 370                 if (BCMCPU_IS_6348())
 371                         val |= GPIO_MODE_6348_G3_EXT_MII |
 372                                 GPIO_MODE_6348_G0_EXT_MII;
 373         }
 374
 375         bcm_gpio_writel(val, GPIO_MODE_REG);
 376 }
 377
 378 /*
 379  * second stage init callback, good time to panic if we couldn't
 380  * identify on which board we're running since early printk is working
 381  */
 382 void __init board_setup(void)
 383 {
 384         if (!board.name[0])
 385                 panic("unable to detect bcm963xx board");
 386         printk(KERN_INFO PFX "board name: %s\n", board.name);
 387
 388         /* make sure we're running on expected cpu */
 389         if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
 390                 panic("unexpected CPU for bcm963xx board");
 391 }
 392
 393 /*
 394  * return board name for /proc/cpuinfo
 395  */
 396 const char *board_get_name(void)
 397 {
 398         return board.name;
 399 }
 400
 401 /*
 402  * register & return a new board mac address
 403  */
 404 static int board_get_mac_address(u8 *mac)
 405 {
 406         u8 *p;
 407         int count;
 408
 409         if (mac_addr_used >= nvram.mac_addr_count) {
 410                 printk(KERN_ERR PFX "not enough mac address\n");
 411                 return -ENODEV;
 412         }
 413
 414         memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
 415         p = mac + ETH_ALEN - 1;
 416         count = mac_addr_used;
 417
 418         while (count--) {
 419                 do {
 420                         (*p)++;
 421                         if (*p != 0)
 422                                 break;
 423                         p--;
 424                 } while (p != mac);
 425         }
 426
 427         if (p == mac) {
 428                 printk(KERN_ERR PFX "unable to fetch mac address\n");
 429                 return -ENODEV;
 430         }
 431
 432         mac_addr_used++;
 433         return 0;
 434 }
 435
 436 static struct resource mtd_resources[] = {
 437         {
 438                 .start          = 0,    /* filled at runtime */
 439                 .end            = 0,    /* filled at runtime */
 440                 .flags          = IORESOURCE_MEM,
 441         }
 442 };
 443
 444 static struct platform_device mtd_dev = {
 445         .name                   = "bcm963xx-flash",
 446         .resource               = mtd_resources,
 447         .num_resources          = ARRAY_SIZE(mtd_resources),
 448 };
 449
 450 /*
 451  * third stage init callback, register all board devices.
 452  */
 453 int __init board_register_devices(void)
 454 {
 455         u32 val;
 456
 457         bcm63xx_uart_register();
 458         bcm63xx_wdt_register();
 459
 460         if (board.has_pccard)
 461                 bcm63xx_pcmcia_register();
 462
 463         if (board.has_enet0 &&
 464             !board_get_mac_address(board.enet0.mac_addr))
 465                 bcm63xx_enet_register(0, &board.enet0);
 466
 467         if (board.has_enet1 &&
 468             !board_get_mac_address(board.enet1.mac_addr))
 469                 bcm63xx_enet_register(1, &board.enet1);
 470
 471         if (board.has_ohci0)
 472                 bcm63xx_ohci_register();
 473
 474         if (board.has_ehci0)
 475                 bcm63xx_ehci_register();
 476
 477
 478         /* read base address of boot chip select (0) */
 479         val = bcm_mpi_readl(MPI_CSBASE_REG(0));
 480         val &= MPI_CSBASE_BASE_MASK;
 481         mtd_resources[0].start = val;
 482         mtd_resources[0].end = 0x1FFFFFFF;
 483
 484         platform_device_register(&mtd_dev);
 485
 486         return 0;
 487 }
 488