drivers/bcma/main.c

   1 /*
   2  * Broadcom specific AMBA
   3  * Bus subsystem
   4  *
   5  * Licensed under the GNU/GPL. See COPYING for details.
   6  */
   7
   8 #include "bcma_private.h"
   9 #include <linux/module.h>
  10 #include <linux/mmc/sdio_func.h>
  11 #include <linux/platform_device.h>
  12 #include <linux/pci.h>
  13 #include <linux/bcma/bcma.h>
  14 #include <linux/slab.h>
  15 #include <linux/of_address.h>
  16 #include <linux/of_irq.h>
  17 #include <linux/of_platform.h>
  18
  19 MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
  20 MODULE_LICENSE("GPL");
  21
  22 /* contains the number the next bus should get. */
  23 static unsigned int bcma_bus_next_num = 0;
  24
  25 /* bcma_buses_mutex locks the bcma_bus_next_num */
  26 static DEFINE_MUTEX(bcma_buses_mutex);
  27
  28 static int bcma_bus_match(struct device *dev, struct device_driver *drv);
  29 static int bcma_device_probe(struct device *dev);
  30 static int bcma_device_remove(struct device *dev);
  31 static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  32
  33 static ssize_t manuf_show(struct device *dev, struct device_attribute *attr, char *buf)
  34 {
  35         struct bcma_device *core = container_of(dev, struct bcma_device, dev);
  36         return sprintf(buf, "0x%03X\n", core->id.manuf);
  37 }
  38 static DEVICE_ATTR_RO(manuf);
  39
  40 static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf)
  41 {
  42         struct bcma_device *core = container_of(dev, struct bcma_device, dev);
  43         return sprintf(buf, "0x%03X\n", core->id.id);
  44 }
  45 static DEVICE_ATTR_RO(id);
  46
  47 static ssize_t rev_show(struct device *dev, struct device_attribute *attr, char *buf)
  48 {
  49         struct bcma_device *core = container_of(dev, struct bcma_device, dev);
  50         return sprintf(buf, "0x%02X\n", core->id.rev);
  51 }
  52 static DEVICE_ATTR_RO(rev);
  53
  54 static ssize_t class_show(struct device *dev, struct device_attribute *attr, char *buf)
  55 {
  56         struct bcma_device *core = container_of(dev, struct bcma_device, dev);
  57         return sprintf(buf, "0x%X\n", core->id.class);
  58 }
  59 static DEVICE_ATTR_RO(class);
  60
  61 static struct attribute *bcma_device_attrs[] = {
  62         &dev_attr_manuf.attr,
  63         &dev_attr_id.attr,
  64         &dev_attr_rev.attr,
  65         &dev_attr_class.attr,
  66         NULL,
  67 };
  68 ATTRIBUTE_GROUPS(bcma_device);
  69
  70 static struct bus_type bcma_bus_type = {
  71         .name           = "bcma",
  72         .match          = bcma_bus_match,
  73         .probe          = bcma_device_probe,
  74         .remove         = bcma_device_remove,
  75         .uevent         = bcma_device_uevent,
  76         .dev_groups     = bcma_device_groups,
  77 };
  78
  79 static u16 bcma_cc_core_id(struct bcma_bus *bus)
  80 {
  81         if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706)
  82                 return BCMA_CORE_4706_CHIPCOMMON;
  83         return BCMA_CORE_CHIPCOMMON;
  84 }
  85
  86 struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
  87                                         u8 unit)
  88 {
  89         struct bcma_device *core;
  90
  91         list_for_each_entry(core, &bus->cores, list) {
  92                 if (core->id.id == coreid && core->core_unit == unit)
  93                         return core;
  94         }
  95         return NULL;
  96 }
  97 EXPORT_SYMBOL_GPL(bcma_find_core_unit);
  98
  99 bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
 100                      int timeout)
 101 {
 102         unsigned long deadline = jiffies + timeout;
 103         u32 val;
 104
 105         do {
 106                 val = bcma_read32(core, reg);
 107                 if ((val & mask) == value)
 108                         return true;
 109                 cpu_relax();
 110                 udelay(10);
 111         } while (!time_after_eq(jiffies, deadline));
 112
 113         bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg);
 114
 115         return false;
 116 }
 117
 118 static void bcma_release_core_dev(struct device *dev)
 119 {
 120         struct bcma_device *core = container_of(dev, struct bcma_device, dev);
 121         if (core->io_addr)
 122                 iounmap(core->io_addr);
 123         if (core->io_wrap)
 124                 iounmap(core->io_wrap);
 125         kfree(core);
 126 }
 127
 128 static bool bcma_is_core_needed_early(u16 core_id)
 129 {
 130         switch (core_id) {
 131         case BCMA_CORE_NS_NAND:
 132         case BCMA_CORE_NS_QSPI:
 133                 return true;
 134         }
 135
 136         return false;
 137 }
 138
 139 static struct device_node *bcma_of_find_child_device(struct device *parent,
 140                                                      struct bcma_device *core)
 141 {
 142         struct device_node *node;
 143         u64 size;
 144         const __be32 *reg;
 145
 146         if (!parent->of_node)
 147                 return NULL;
 148
 149         for_each_child_of_node(parent->of_node, node) {
 150                 reg = of_get_address(node, 0, &size, NULL);
 151                 if (!reg)
 152                         continue;
 153                 if (of_translate_address(node, reg) == core->addr)
 154                         return node;
 155         }
 156         return NULL;
 157 }
 158
 159 static int bcma_of_irq_parse(struct device *parent,
 160                              struct bcma_device *core,
 161                              struct of_phandle_args *out_irq, int num)
 162 {
 163         __be32 laddr[1];
 164         int rc;
 165
 166         if (core->dev.of_node) {
 167                 rc = of_irq_parse_one(core->dev.of_node, num, out_irq);
 168                 if (!rc)
 169                         return rc;
 170         }
 171
 172         out_irq->np = parent->of_node;
 173         out_irq->args_count = 1;
 174         out_irq->args[0] = num;
 175
 176         laddr[0] = cpu_to_be32(core->addr);
 177         return of_irq_parse_raw(laddr, out_irq);
 178 }
 179
 180 static unsigned int bcma_of_get_irq(struct device *parent,
 181                                     struct bcma_device *core, int num)
 182 {
 183         struct of_phandle_args out_irq;
 184         int ret;
 185
 186         if (!IS_ENABLED(CONFIG_OF_IRQ) || !parent->of_node)
 187                 return 0;
 188
 189         ret = bcma_of_irq_parse(parent, core, &out_irq, num);
 190         if (ret) {
 191                 bcma_debug(core->bus, "bcma_of_get_irq() failed with rc=%d\n",
 192                            ret);
 193                 return 0;
 194         }
 195
 196         return irq_create_of_mapping(&out_irq);
 197 }
 198
 199 static void bcma_of_fill_device(struct device *parent,
 200                                 struct bcma_device *core)
 201 {
 202         struct device_node *node;
 203
 204         node = bcma_of_find_child_device(parent, core);
 205         if (node)
 206                 core->dev.of_node = node;
 207
 208         core->irq = bcma_of_get_irq(parent, core, 0);
 209
 210         of_dma_configure(&core->dev, node, false);
 211 }
 212
 213 unsigned int bcma_core_irq(struct bcma_device *core, int num)
 214 {
 215         struct bcma_bus *bus = core->bus;
 216         unsigned int mips_irq;
 217
 218         switch (bus->hosttype) {
 219         case BCMA_HOSTTYPE_PCI:
 220                 return bus->host_pci->irq;
 221         case BCMA_HOSTTYPE_SOC:
 222                 if (bus->drv_mips.core && num == 0) {
 223                         mips_irq = bcma_core_mips_irq(core);
 224                         return mips_irq <= 4 ? mips_irq + 2 : 0;
 225                 }
 226                 if (bus->dev)
 227                         return bcma_of_get_irq(bus->dev, core, num);
 228                 return 0;
 229         case BCMA_HOSTTYPE_SDIO:
 230                 return 0;
 231         }
 232
 233         return 0;
 234 }
 235 EXPORT_SYMBOL(bcma_core_irq);
 236
 237 void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core)
 238 {
 239         core->dev.release = bcma_release_core_dev;
 240         core->dev.bus = &bcma_bus_type;
 241         dev_set_name(&core->dev, "bcma%d:%d", bus->num, core->core_index);
 242         core->dev.parent = bus->dev;
 243         if (bus->dev)
 244                 bcma_of_fill_device(bus->dev, core);
 245
 246         switch (bus->hosttype) {
 247         case BCMA_HOSTTYPE_PCI:
 248                 core->dma_dev = bus->dev;
 249                 core->irq = bus->host_pci->irq;
 250                 break;
 251         case BCMA_HOSTTYPE_SOC:
 252                 if (IS_ENABLED(CONFIG_OF) && bus->dev) {
 253                         core->dma_dev = bus->dev;
 254                 } else {
 255                         core->dev.dma_mask = &core->dev.coherent_dma_mask;
 256                         core->dma_dev = &core->dev;
 257                 }
 258                 break;
 259         case BCMA_HOSTTYPE_SDIO:
 260                 break;
 261         }
 262 }
 263
 264 void bcma_init_bus(struct bcma_bus *bus)
 265 {
 266         mutex_lock(&bcma_buses_mutex);
 267         bus->num = bcma_bus_next_num++;
 268         mutex_unlock(&bcma_buses_mutex);
 269
 270         INIT_LIST_HEAD(&bus->cores);
 271         bus->nr_cores = 0;
 272
 273         bcma_detect_chip(bus);
 274 }
 275
 276 static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
 277 {
 278         int err;
 279
 280         err = device_register(&core->dev);
 281         if (err) {
 282                 bcma_err(bus, "Could not register dev for core 0x%03X\n",
 283                          core->id.id);
 284                 put_device(&core->dev);
 285                 return;
 286         }
 287         core->dev_registered = true;
 288 }
 289
 290 static int bcma_register_devices(struct bcma_bus *bus)
 291 {
 292         struct bcma_device *core;
 293         int err;
 294
 295         list_for_each_entry(core, &bus->cores, list) {
 296                 /* We support that cores ourself */
 297                 switch (core->id.id) {
 298                 case BCMA_CORE_4706_CHIPCOMMON:
 299                 case BCMA_CORE_CHIPCOMMON:
 300                 case BCMA_CORE_NS_CHIPCOMMON_B:
 301                 case BCMA_CORE_PCI:
 302                 case BCMA_CORE_PCIE:
 303                 case BCMA_CORE_PCIE2:
 304                 case BCMA_CORE_MIPS_74K:
 305                 case BCMA_CORE_4706_MAC_GBIT_COMMON:
 306                         continue;
 307                 }
 308
 309                 /* Early cores were already registered */
 310                 if (bcma_is_core_needed_early(core->id.id))
 311                         continue;
 312
 313                 /* Only first GMAC core on BCM4706 is connected and working */
 314                 if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
 315                     core->core_unit > 0)
 316                         continue;
 317
 318                 bcma_register_core(bus, core);
 319         }
 320
 321 #ifdef CONFIG_BCMA_PFLASH
 322         if (bus->drv_cc.pflash.present) {
 323                 err = platform_device_register(&bcma_pflash_dev);
 324                 if (err)
 325                         bcma_err(bus, "Error registering parallel flash\n");
 326         }
 327 #endif
 328
 329 #ifdef CONFIG_BCMA_SFLASH
 330         if (bus->drv_cc.sflash.present) {
 331                 err = platform_device_register(&bcma_sflash_dev);
 332                 if (err)
 333                         bcma_err(bus, "Error registering serial flash\n");
 334         }
 335 #endif
 336
 337 #ifdef CONFIG_BCMA_NFLASH
 338         if (bus->drv_cc.nflash.present) {
 339                 err = platform_device_register(&bcma_nflash_dev);
 340                 if (err)
 341                         bcma_err(bus, "Error registering NAND flash\n");
 342         }
 343 #endif
 344         err = bcma_gpio_init(&bus->drv_cc);
 345         if (err == -ENOTSUPP)
 346                 bcma_debug(bus, "GPIO driver not activated\n");
 347         else if (err)
 348                 bcma_err(bus, "Error registering GPIO driver: %i\n", err);
 349
 350         if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
 351                 err = bcma_chipco_watchdog_register(&bus->drv_cc);
 352                 if (err)
 353                         bcma_err(bus, "Error registering watchdog driver\n");
 354         }
 355
 356         return 0;
 357 }
 358
 359 void bcma_unregister_cores(struct bcma_bus *bus)
 360 {
 361         struct bcma_device *core, *tmp;
 362
 363         list_for_each_entry_safe(core, tmp, &bus->cores, list) {
 364                 if (!core->dev_registered)
 365                         continue;
 366                 list_del(&core->list);
 367                 device_unregister(&core->dev);
 368         }
 369         if (bus->hosttype == BCMA_HOSTTYPE_SOC)
 370                 platform_device_unregister(bus->drv_cc.watchdog);
 371
 372         /* Now noone uses internally-handled cores, we can free them */
 373         list_for_each_entry_safe(core, tmp, &bus->cores, list) {
 374                 list_del(&core->list);
 375                 kfree(core);
 376         }
 377 }
 378
 379 int bcma_bus_register(struct bcma_bus *bus)
 380 {
 381         int err;
 382         struct bcma_device *core;
 383
 384         /* Scan for devices (cores) */
 385         err = bcma_bus_scan(bus);
 386         if (err) {
 387                 bcma_err(bus, "Failed to scan: %d\n", err);
 388                 return err;
 389         }
 390
 391         /* Early init CC core */
 392         core = bcma_find_core(bus, bcma_cc_core_id(bus));
 393         if (core) {
 394                 bus->drv_cc.core = core;
 395                 bcma_core_chipcommon_early_init(&bus->drv_cc);
 396         }
 397
 398         /* Early init PCIE core */
 399         core = bcma_find_core(bus, BCMA_CORE_PCIE);
 400         if (core) {
 401                 bus->drv_pci[0].core = core;
 402                 bcma_core_pci_early_init(&bus->drv_pci[0]);
 403         }
 404
 405         if (bus->dev)
 406                 of_platform_default_populate(bus->dev->of_node, NULL, bus->dev);
 407
 408         /* Cores providing flash access go before SPROM init */
 409         list_for_each_entry(core, &bus->cores, list) {
 410                 if (bcma_is_core_needed_early(core->id.id))
 411                         bcma_register_core(bus, core);
 412         }
 413
 414         /* Try to get SPROM */
 415         err = bcma_sprom_get(bus);
 416         if (err == -ENOENT) {
 417                 bcma_err(bus, "No SPROM available\n");
 418         } else if (err)
 419                 bcma_err(bus, "Failed to get SPROM: %d\n", err);
 420
 421         /* Init CC core */
 422         core = bcma_find_core(bus, bcma_cc_core_id(bus));
 423         if (core) {
 424                 bus->drv_cc.core = core;
 425                 bcma_core_chipcommon_init(&bus->drv_cc);
 426         }
 427
 428         /* Init CC core */
 429         core = bcma_find_core(bus, BCMA_CORE_NS_CHIPCOMMON_B);
 430         if (core) {
 431                 bus->drv_cc_b.core = core;
 432                 bcma_core_chipcommon_b_init(&bus->drv_cc_b);
 433         }
 434
 435         /* Init MIPS core */
 436         core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
 437         if (core) {
 438                 bus->drv_mips.core = core;
 439                 bcma_core_mips_init(&bus->drv_mips);
 440         }
 441
 442         /* Init PCIE core */
 443         core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 0);
 444         if (core) {
 445                 bus->drv_pci[0].core = core;
 446                 bcma_core_pci_init(&bus->drv_pci[0]);
 447         }
 448
 449         /* Init PCIE core */
 450         core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 1);
 451         if (core) {
 452                 bus->drv_pci[1].core = core;
 453                 bcma_core_pci_init(&bus->drv_pci[1]);
 454         }
 455
 456         /* Init PCIe Gen 2 core */
 457         core = bcma_find_core_unit(bus, BCMA_CORE_PCIE2, 0);
 458         if (core) {
 459                 bus->drv_pcie2.core = core;
 460                 bcma_core_pcie2_init(&bus->drv_pcie2);
 461         }
 462
 463         /* Init GBIT MAC COMMON core */
 464         core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
 465         if (core) {
 466                 bus->drv_gmac_cmn.core = core;
 467                 bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn);
 468         }
 469
 470         /* Register found cores */
 471         bcma_register_devices(bus);
 472
 473         bcma_info(bus, "Bus registered\n");
 474
 475         return 0;
 476 }
 477
 478 void bcma_bus_unregister(struct bcma_bus *bus)
 479 {
 480         int err;
 481
 482         err = bcma_gpio_unregister(&bus->drv_cc);
 483         if (err == -EBUSY)
 484                 bcma_err(bus, "Some GPIOs are still in use.\n");
 485         else if (err)
 486                 bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
 487
 488         bcma_core_chipcommon_b_free(&bus->drv_cc_b);
 489
 490         bcma_unregister_cores(bus);
 491 }
 492
 493 /*
 494  * This is a special version of bus registration function designed for SoCs.
 495  * It scans bus and performs basic initialization of main cores only.
 496  * Please note it requires memory allocation, however it won't try to sleep.
 497  */
 498 int __init bcma_bus_early_register(struct bcma_bus *bus)
 499 {
 500         int err;
 501         struct bcma_device *core;
 502
 503         /* Scan for devices (cores) */
 504         err = bcma_bus_scan(bus);
 505         if (err) {
 506                 bcma_err(bus, "Failed to scan bus: %d\n", err);
 507                 return -1;
 508         }
 509
 510         /* Early init CC core */
 511         core = bcma_find_core(bus, bcma_cc_core_id(bus));
 512         if (core) {
 513                 bus->drv_cc.core = core;
 514                 bcma_core_chipcommon_early_init(&bus->drv_cc);
 515         }
 516
 517         /* Early init MIPS core */
 518         core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
 519         if (core) {
 520                 bus->drv_mips.core = core;
 521                 bcma_core_mips_early_init(&bus->drv_mips);
 522         }
 523
 524         bcma_info(bus, "Early bus registered\n");
 525
 526         return 0;
 527 }
 528
 529 #ifdef CONFIG_PM
 530 int bcma_bus_suspend(struct bcma_bus *bus)
 531 {
 532         struct bcma_device *core;
 533
 534         list_for_each_entry(core, &bus->cores, list) {
 535                 struct device_driver *drv = core->dev.driver;
 536                 if (drv) {
 537                         struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
 538                         if (adrv->suspend)
 539                                 adrv->suspend(core);
 540                 }
 541         }
 542         return 0;
 543 }
 544
 545 int bcma_bus_resume(struct bcma_bus *bus)
 546 {
 547         struct bcma_device *core;
 548
 549         /* Init CC core */
 550         if (bus->drv_cc.core) {
 551                 bus->drv_cc.setup_done = false;
 552                 bcma_core_chipcommon_init(&bus->drv_cc);
 553         }
 554
 555         list_for_each_entry(core, &bus->cores, list) {
 556                 struct device_driver *drv = core->dev.driver;
 557                 if (drv) {
 558                         struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
 559                         if (adrv->resume)
 560                                 adrv->resume(core);
 561                 }
 562         }
 563
 564         return 0;
 565 }
 566 #endif
 567
 568 int __bcma_driver_register(struct bcma_driver *drv, struct module *owner)
 569 {
 570         drv->drv.name = drv->name;
 571         drv->drv.bus = &bcma_bus_type;
 572         drv->drv.owner = owner;
 573
 574         return driver_register(&drv->drv);
 575 }
 576 EXPORT_SYMBOL_GPL(__bcma_driver_register);
 577
 578 void bcma_driver_unregister(struct bcma_driver *drv)
 579 {
 580         driver_unregister(&drv->drv);
 581 }
 582 EXPORT_SYMBOL_GPL(bcma_driver_unregister);
 583
 584 static int bcma_bus_match(struct device *dev, struct device_driver *drv)
 585 {
 586         struct bcma_device *core = container_of(dev, struct bcma_device, dev);
 587         struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
 588         const struct bcma_device_id *cid = &core->id;
 589         const struct bcma_device_id *did;
 590
 591         for (did = adrv->id_table; did->manuf || did->id || did->rev; did++) {
 592             if ((did->manuf == cid->manuf || did->manuf == BCMA_ANY_MANUF) &&
 593                 (did->id == cid->id || did->id == BCMA_ANY_ID) &&
 594                 (did->rev == cid->rev || did->rev == BCMA_ANY_REV) &&
 595                 (did->class == cid->class || did->class == BCMA_ANY_CLASS))
 596                         return 1;
 597         }
 598         return 0;
 599 }
 600
 601 static int bcma_device_probe(struct device *dev)
 602 {
 603         struct bcma_device *core = container_of(dev, struct bcma_device, dev);
 604         struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
 605                                                drv);
 606         int err = 0;
 607
 608         get_device(dev);
 609         if (adrv->probe)
 610                 err = adrv->probe(core);
 611         if (err)
 612                 put_device(dev);
 613
 614         return err;
 615 }
 616
 617 static int bcma_device_remove(struct device *dev)
 618 {
 619         struct bcma_device *core = container_of(dev, struct bcma_device, dev);
 620         struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
 621                                                drv);
 622
 623         if (adrv->remove)
 624                 adrv->remove(core);
 625         put_device(dev);
 626
 627         return 0;
 628 }
 629
 630 static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env)
 631 {
 632         struct bcma_device *core = container_of(dev, struct bcma_device, dev);
 633
 634         return add_uevent_var(env,
 635                               "MODALIAS=bcma:m%04Xid%04Xrev%02Xcl%02X",
 636                               core->id.manuf, core->id.id,
 637                               core->id.rev, core->id.class);
 638 }
 639
 640 static unsigned int bcma_bus_registered;
 641
 642 /*
 643  * If built-in, bus has to be registered early, before any driver calls
 644  * bcma_driver_register.
 645  * Otherwise registering driver would trigger BUG in driver_register.
 646  */
 647 static int __init bcma_init_bus_register(void)
 648 {
 649         int err;
 650
 651         if (bcma_bus_registered)
 652                 return 0;
 653
 654         err = bus_register(&bcma_bus_type);
 655         if (!err)
 656                 bcma_bus_registered = 1;
 657
 658         return err;
 659 }
 660 #ifndef MODULE
 661 fs_initcall(bcma_init_bus_register);
 662 #endif
 663
 664 /* Main initialization has to be done with SPI/mtd/NAND/SPROM available */
 665 static int __init bcma_modinit(void)
 666 {
 667         int err;
 668
 669         err = bcma_init_bus_register();
 670         if (err)
 671                 return err;
 672
 673         err = bcma_host_soc_register_driver();
 674         if (err) {
 675                 pr_err("SoC host initialization failed\n");
 676                 err = 0;
 677         }
 678 #ifdef CONFIG_BCMA_HOST_PCI
 679         err = bcma_host_pci_init();
 680         if (err) {
 681                 pr_err("PCI host initialization failed\n");
 682                 err = 0;
 683         }
 684 #endif
 685
 686         return err;
 687 }
 688 module_init(bcma_modinit);
 689
 690 static void __exit bcma_modexit(void)
 691 {
 692 #ifdef CONFIG_BCMA_HOST_PCI
 693         bcma_host_pci_exit();
 694 #endif
 695         bcma_host_soc_unregister_driver();
 696         bus_unregister(&bcma_bus_type);
 697 }
 698 module_exit(bcma_modexit)