drivers/ssb/driver_pcicore.c

   1 /*
   2  * Sonics Silicon Backplane
   3  * Broadcom PCI-core driver
   4  *
   5  * Copyright 2005, Broadcom Corporation
   6  * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
   7  *
   8  * Licensed under the GNU/GPL. See COPYING for details.
   9  */
  10
  11 #include <linux/ssb/ssb.h>
  12 #include <linux/pci.h>
  13 #include <linux/delay.h>
  14 #include <linux/ssb/ssb_embedded.h>
  15
  16 #include "ssb_private.h"
  17
  18
  19 static inline
  20 u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset)
  21 {
  22         return ssb_read32(pc->dev, offset);
  23 }
  24
  25 static inline
  26 void pcicore_write32(struct ssb_pcicore *pc, u16 offset, u32 value)
  27 {
  28         ssb_write32(pc->dev, offset, value);
  29 }
  30
  31 static inline
  32 u16 pcicore_read16(struct ssb_pcicore *pc, u16 offset)
  33 {
  34         return ssb_read16(pc->dev, offset);
  35 }
  36
  37 static inline
  38 void pcicore_write16(struct ssb_pcicore *pc, u16 offset, u16 value)
  39 {
  40         ssb_write16(pc->dev, offset, value);
  41 }
  42
  43 /**************************************************
  44  * Code for hostmode operation.
  45  **************************************************/
  46
  47 #ifdef CONFIG_SSB_PCICORE_HOSTMODE
  48
  49 #include <asm/paccess.h>
  50 /* Probe a 32bit value on the bus and catch bus exceptions.
  51  * Returns nonzero on a bus exception.
  52  * This is MIPS specific */
  53 #define mips_busprobe32(val, addr)      get_dbe((val), ((u32 *)(addr)))
  54
  55 /* Assume one-hot slot wiring */
  56 #define SSB_PCI_SLOT_MAX        16
  57
  58 /* Global lock is OK, as we won't have more than one extpci anyway. */
  59 static DEFINE_SPINLOCK(cfgspace_lock);
  60 /* Core to access the external PCI config space. Can only have one. */
  61 static struct ssb_pcicore *extpci_core;
  62
  63
  64 static u32 get_cfgspace_addr(struct ssb_pcicore *pc,
  65                              unsigned int bus, unsigned int dev,
  66                              unsigned int func, unsigned int off)
  67 {
  68         u32 addr = 0;
  69         u32 tmp;
  70
  71         /* We do only have one cardbus device behind the bridge. */
  72         if (pc->cardbusmode && (dev >= 1))
  73                 goto out;
  74
  75         if (bus == 0) {
  76                 /* Type 0 transaction */
  77                 if (unlikely(dev >= SSB_PCI_SLOT_MAX))
  78                         goto out;
  79                 /* Slide the window */
  80                 tmp = SSB_PCICORE_SBTOPCI_CFG0;
  81                 tmp |= ((1 << (dev + 16)) & SSB_PCICORE_SBTOPCI1_MASK);
  82                 pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, tmp);
  83                 /* Calculate the address */
  84                 addr = SSB_PCI_CFG;
  85                 addr |= ((1 << (dev + 16)) & ~SSB_PCICORE_SBTOPCI1_MASK);
  86                 addr |= (func << 8);
  87                 addr |= (off & ~3);
  88         } else {
  89                 /* Type 1 transaction */
  90                 pcicore_write32(pc, SSB_PCICORE_SBTOPCI1,
  91                                 SSB_PCICORE_SBTOPCI_CFG1);
  92                 /* Calculate the address */
  93                 addr = SSB_PCI_CFG;
  94                 addr |= (bus << 16);
  95                 addr |= (dev << 11);
  96                 addr |= (func << 8);
  97                 addr |= (off & ~3);
  98         }
  99 out:
 100         return addr;
 101 }
 102
 103 static int ssb_extpci_read_config(struct ssb_pcicore *pc,
 104                                   unsigned int bus, unsigned int dev,
 105                                   unsigned int func, unsigned int off,
 106                                   void *buf, int len)
 107 {
 108         int err = -EINVAL;
 109         u32 addr, val;
 110         void __iomem *mmio;
 111
 112         SSB_WARN_ON(!pc->hostmode);
 113         if (unlikely(len != 1 && len != 2 && len != 4))
 114                 goto out;
 115         addr = get_cfgspace_addr(pc, bus, dev, func, off);
 116         if (unlikely(!addr))
 117                 goto out;
 118         err = -ENOMEM;
 119         mmio = ioremap_nocache(addr, len);
 120         if (!mmio)
 121                 goto out;
 122
 123         if (mips_busprobe32(val, mmio)) {
 124                 val = 0xffffffff;
 125                 goto unmap;
 126         }
 127
 128         val = readl(mmio);
 129         val >>= (8 * (off & 3));
 130
 131         switch (len) {
 132         case 1:
 133                 *((u8 *)buf) = (u8)val;
 134                 break;
 135         case 2:
 136                 *((u16 *)buf) = (u16)val;
 137                 break;
 138         case 4:
 139                 *((u32 *)buf) = (u32)val;
 140                 break;
 141         }
 142         err = 0;
 143 unmap:
 144         iounmap(mmio);
 145 out:
 146         return err;
 147 }
 148
 149 static int ssb_extpci_write_config(struct ssb_pcicore *pc,
 150                                    unsigned int bus, unsigned int dev,
 151                                    unsigned int func, unsigned int off,
 152                                    const void *buf, int len)
 153 {
 154         int err = -EINVAL;
 155         u32 addr, val = 0;
 156         void __iomem *mmio;
 157
 158         SSB_WARN_ON(!pc->hostmode);
 159         if (unlikely(len != 1 && len != 2 && len != 4))
 160                 goto out;
 161         addr = get_cfgspace_addr(pc, bus, dev, func, off);
 162         if (unlikely(!addr))
 163                 goto out;
 164         err = -ENOMEM;
 165         mmio = ioremap_nocache(addr, len);
 166         if (!mmio)
 167                 goto out;
 168
 169         if (mips_busprobe32(val, mmio)) {
 170                 val = 0xffffffff;
 171                 goto unmap;
 172         }
 173
 174         switch (len) {
 175         case 1:
 176                 val = readl(mmio);
 177                 val &= ~(0xFF << (8 * (off & 3)));
 178                 val |= *((const u8 *)buf) << (8 * (off & 3));
 179                 break;
 180         case 2:
 181                 val = readl(mmio);
 182                 val &= ~(0xFFFF << (8 * (off & 3)));
 183                 val |= *((const u16 *)buf) << (8 * (off & 3));
 184                 break;
 185         case 4:
 186                 val = *((const u32 *)buf);
 187                 break;
 188         }
 189         writel(val, mmio);
 190
 191         err = 0;
 192 unmap:
 193         iounmap(mmio);
 194 out:
 195         return err;
 196 }
 197
 198 static int ssb_pcicore_read_config(struct pci_bus *bus, unsigned int devfn,
 199                                    int reg, int size, u32 *val)
 200 {
 201         unsigned long flags;
 202         int err;
 203
 204         spin_lock_irqsave(&cfgspace_lock, flags);
 205         err = ssb_extpci_read_config(extpci_core, bus->number, PCI_SLOT(devfn),
 206                                      PCI_FUNC(devfn), reg, val, size);
 207         spin_unlock_irqrestore(&cfgspace_lock, flags);
 208
 209         return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
 210 }
 211
 212 static int ssb_pcicore_write_config(struct pci_bus *bus, unsigned int devfn,
 213                                     int reg, int size, u32 val)
 214 {
 215         unsigned long flags;
 216         int err;
 217
 218         spin_lock_irqsave(&cfgspace_lock, flags);
 219         err = ssb_extpci_write_config(extpci_core, bus->number, PCI_SLOT(devfn),
 220                                       PCI_FUNC(devfn), reg, &val, size);
 221         spin_unlock_irqrestore(&cfgspace_lock, flags);
 222
 223         return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
 224 }
 225
 226 static struct pci_ops ssb_pcicore_pciops = {
 227         .read   = ssb_pcicore_read_config,
 228         .write  = ssb_pcicore_write_config,
 229 };
 230
 231 static struct resource ssb_pcicore_mem_resource = {
 232         .name   = "SSB PCIcore external memory",
 233         .start  = SSB_PCI_DMA,
 234         .end    = SSB_PCI_DMA + SSB_PCI_DMA_SZ - 1,
 235         .flags  = IORESOURCE_MEM | IORESOURCE_PCI_FIXED,
 236 };
 237
 238 static struct resource ssb_pcicore_io_resource = {
 239         .name   = "SSB PCIcore external I/O",
 240         .start  = 0x100,
 241         .end    = 0x7FF,
 242         .flags  = IORESOURCE_IO | IORESOURCE_PCI_FIXED,
 243 };
 244
 245 static struct pci_controller ssb_pcicore_controller = {
 246         .pci_ops        = &ssb_pcicore_pciops,
 247         .io_resource    = &ssb_pcicore_io_resource,
 248         .mem_resource   = &ssb_pcicore_mem_resource,
 249 };
 250
 251 /* This function is called when doing a pci_enable_device().
 252  * We must first check if the device is a device on the PCI-core bridge. */
 253 int ssb_pcicore_plat_dev_init(struct pci_dev *d)
 254 {
 255         if (d->bus->ops != &ssb_pcicore_pciops) {
 256                 /* This is not a device on the PCI-core bridge. */
 257                 return -ENODEV;
 258         }
 259
 260         ssb_printk(KERN_INFO "PCI: Fixing up device %s\n",
 261                    pci_name(d));
 262
 263         /* Fix up interrupt lines */
 264         d->irq = ssb_mips_irq(extpci_core->dev) + 2;
 265         pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq);
 266
 267         return 0;
 268 }
 269
 270 /* Early PCI fixup for a device on the PCI-core bridge. */
 271 static void ssb_pcicore_fixup_pcibridge(struct pci_dev *dev)
 272 {
 273         u8 lat;
 274
 275         if (dev->bus->ops != &ssb_pcicore_pciops) {
 276                 /* This is not a device on the PCI-core bridge. */
 277                 return;
 278         }
 279         if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) != 0)
 280                 return;
 281
 282         ssb_printk(KERN_INFO "PCI: Fixing up bridge %s\n", pci_name(dev));
 283
 284         /* Enable PCI bridge bus mastering and memory space */
 285         pci_set_master(dev);
 286         if (pcibios_enable_device(dev, ~0) < 0) {
 287                 ssb_printk(KERN_ERR "PCI: SSB bridge enable failed\n");
 288                 return;
 289         }
 290
 291         /* Enable PCI bridge BAR1 prefetch and burst */
 292         pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3);
 293
 294         /* Make sure our latency is high enough to handle the devices behind us */
 295         lat = 168;
 296         ssb_printk(KERN_INFO "PCI: Fixing latency timer of device %s to %u\n",
 297                    pci_name(dev), lat);
 298         pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
 299 }
 300 DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_pcicore_fixup_pcibridge);
 301
 302 /* PCI device IRQ mapping. */
 303 int ssb_pcicore_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 304 {
 305         if (dev->bus->ops != &ssb_pcicore_pciops) {
 306                 /* This is not a device on the PCI-core bridge. */
 307                 return -ENODEV;
 308         }
 309         return ssb_mips_irq(extpci_core->dev) + 2;
 310 }
 311
 312 static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc)
 313 {
 314         u32 val;
 315
 316         if (WARN_ON(extpci_core))
 317                 return;
 318         extpci_core = pc;
 319
 320         ssb_dprintk(KERN_INFO PFX "PCIcore in host mode found\n");
 321         /* Reset devices on the external PCI bus */
 322         val = SSB_PCICORE_CTL_RST_OE;
 323         val |= SSB_PCICORE_CTL_CLK_OE;
 324         pcicore_write32(pc, SSB_PCICORE_CTL, val);
 325         val |= SSB_PCICORE_CTL_CLK; /* Clock on */
 326         pcicore_write32(pc, SSB_PCICORE_CTL, val);
 327         udelay(150); /* Assertion time demanded by the PCI standard */
 328         val |= SSB_PCICORE_CTL_RST; /* Deassert RST# */
 329         pcicore_write32(pc, SSB_PCICORE_CTL, val);
 330         val = SSB_PCICORE_ARBCTL_INTERN;
 331         pcicore_write32(pc, SSB_PCICORE_ARBCTL, val);
 332         udelay(1); /* Assertion time demanded by the PCI standard */
 333
 334         if (pc->dev->bus->has_cardbus_slot) {
 335                 ssb_dprintk(KERN_INFO PFX "CardBus slot detected\n");
 336                 pc->cardbusmode = 1;
 337                 /* GPIO 1 resets the bridge */
 338                 ssb_gpio_out(pc->dev->bus, 1, 1);
 339                 ssb_gpio_outen(pc->dev->bus, 1, 1);
 340                 pcicore_write16(pc, SSB_PCICORE_SPROM(0),
 341                                 pcicore_read16(pc, SSB_PCICORE_SPROM(0))
 342                                 | 0x0400);
 343         }
 344
 345         /* 64MB I/O window */
 346         pcicore_write32(pc, SSB_PCICORE_SBTOPCI0,
 347                         SSB_PCICORE_SBTOPCI_IO);
 348         /* 64MB config space */
 349         pcicore_write32(pc, SSB_PCICORE_SBTOPCI1,
 350                         SSB_PCICORE_SBTOPCI_CFG0);
 351         /* 1GB memory window */
 352         pcicore_write32(pc, SSB_PCICORE_SBTOPCI2,
 353                         SSB_PCICORE_SBTOPCI_MEM | SSB_PCI_DMA);
 354
 355         /* Enable PCI bridge BAR0 prefetch and burst */
 356         val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
 357         ssb_extpci_write_config(pc, 0, 0, 0, PCI_COMMAND, &val, 2);
 358         /* Clear error conditions */
 359         val = 0;
 360         ssb_extpci_write_config(pc, 0, 0, 0, PCI_STATUS, &val, 2);
 361
 362         /* Enable PCI interrupts */
 363         pcicore_write32(pc, SSB_PCICORE_IMASK,
 364                         SSB_PCICORE_IMASK_INTA);
 365
 366         /* Ok, ready to run, register it to the system.
 367          * The following needs change, if we want to port hostmode
 368          * to non-MIPS platform. */
 369         ssb_pcicore_controller.io_map_base = (unsigned long)ioremap_nocache(SSB_PCI_MEM, 0x04000000);
 370         set_io_port_base(ssb_pcicore_controller.io_map_base);
 371         /* Give some time to the PCI controller to configure itself with the new
 372          * values. Not waiting at this point causes crashes of the machine. */
 373         mdelay(10);
 374         register_pci_controller(&ssb_pcicore_controller);
 375 }
 376
 377 static int pcicore_is_in_hostmode(struct ssb_pcicore *pc)
 378 {
 379         struct ssb_bus *bus = pc->dev->bus;
 380         u16 chipid_top;
 381         u32 tmp;
 382
 383         chipid_top = (bus->chip_id & 0xFF00);
 384         if (chipid_top != 0x4700 &&
 385             chipid_top != 0x5300)
 386                 return 0;
 387
 388         if (bus->sprom.boardflags_lo & SSB_PCICORE_BFL_NOPCI)
 389                 return 0;
 390
 391         /* The 200-pin BCM4712 package does not bond out PCI. Even when
 392          * PCI is bonded out, some boards may leave the pins floating. */
 393         if (bus->chip_id == 0x4712) {
 394                 if (bus->chip_package == SSB_CHIPPACK_BCM4712S)
 395                         return 0;
 396                 if (bus->chip_package == SSB_CHIPPACK_BCM4712M)
 397                         return 0;
 398         }
 399         if (bus->chip_id == 0x5350)
 400                 return 0;
 401
 402         return !mips_busprobe32(tmp, (bus->mmio + (pc->dev->core_index * SSB_CORE_SIZE)));
 403 }
 404 #endif /* CONFIG_SSB_PCICORE_HOSTMODE */
 405
 406
 407 /**************************************************
 408  * Generic and Clientmode operation code.
 409  **************************************************/
 410
 411 static void ssb_pcicore_init_clientmode(struct ssb_pcicore *pc)
 412 {
 413         /* Disable PCI interrupts. */
 414         ssb_write32(pc->dev, SSB_INTVEC, 0);
 415 }
 416
 417 void ssb_pcicore_init(struct ssb_pcicore *pc)
 418 {
 419         struct ssb_device *dev = pc->dev;
 420         struct ssb_bus *bus;
 421
 422         if (!dev)
 423                 return;
 424         bus = dev->bus;
 425         if (!ssb_device_is_enabled(dev))
 426                 ssb_device_enable(dev, 0);
 427
 428 #ifdef CONFIG_SSB_PCICORE_HOSTMODE
 429         pc->hostmode = pcicore_is_in_hostmode(pc);
 430         if (pc->hostmode)
 431                 ssb_pcicore_init_hostmode(pc);
 432 #endif /* CONFIG_SSB_PCICORE_HOSTMODE */
 433         if (!pc->hostmode)
 434                 ssb_pcicore_init_clientmode(pc);
 435 }
 436
 437 static u32 ssb_pcie_read(struct ssb_pcicore *pc, u32 address)
 438 {
 439         pcicore_write32(pc, 0x130, address);
 440         return pcicore_read32(pc, 0x134);
 441 }
 442
 443 static void ssb_pcie_write(struct ssb_pcicore *pc, u32 address, u32 data)
 444 {
 445         pcicore_write32(pc, 0x130, address);
 446         pcicore_write32(pc, 0x134, data);
 447 }
 448
 449 static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device,
 450                                 u8 address, u16 data)
 451 {
 452         const u16 mdio_control = 0x128;
 453         const u16 mdio_data = 0x12C;
 454         u32 v;
 455         int i;
 456
 457         v = 0x80; /* Enable Preamble Sequence */
 458         v |= 0x2; /* MDIO Clock Divisor */
 459         pcicore_write32(pc, mdio_control, v);
 460
 461         v = (1 << 30); /* Start of Transaction */
 462         v |= (1 << 28); /* Write Transaction */
 463         v |= (1 << 17); /* Turnaround */
 464         v |= (u32)device << 22;
 465         v |= (u32)address << 18;
 466         v |= data;
 467         pcicore_write32(pc, mdio_data, v);
 468         /* Wait for the device to complete the transaction */
 469         udelay(10);
 470         for (i = 0; i < 10; i++) {
 471                 v = pcicore_read32(pc, mdio_control);
 472                 if (v & 0x100 /* Trans complete */)
 473                         break;
 474                 msleep(1);
 475         }
 476         pcicore_write32(pc, mdio_control, 0);
 477 }
 478
 479 static void ssb_broadcast_value(struct ssb_device *dev,
 480                                 u32 address, u32 data)
 481 {
 482         /* This is used for both, PCI and ChipCommon core, so be careful. */
 483         BUILD_BUG_ON(SSB_PCICORE_BCAST_ADDR != SSB_CHIPCO_BCAST_ADDR);
 484         BUILD_BUG_ON(SSB_PCICORE_BCAST_DATA != SSB_CHIPCO_BCAST_DATA);
 485
 486         ssb_write32(dev, SSB_PCICORE_BCAST_ADDR, address);
 487         ssb_read32(dev, SSB_PCICORE_BCAST_ADDR); /* flush */
 488         ssb_write32(dev, SSB_PCICORE_BCAST_DATA, data);
 489         ssb_read32(dev, SSB_PCICORE_BCAST_DATA); /* flush */
 490 }
 491
 492 static void ssb_commit_settings(struct ssb_bus *bus)
 493 {
 494         struct ssb_device *dev;
 495
 496         dev = bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev;
 497         if (WARN_ON(!dev))
 498                 return;
 499         /* This forces an update of the cached registers. */
 500         ssb_broadcast_value(dev, 0xFD8, 0);
 501 }
 502
 503 int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
 504                                    struct ssb_device *dev)
 505 {
 506         struct ssb_device *pdev = pc->dev;
 507         struct ssb_bus *bus;
 508         int err = 0;
 509         u32 tmp;
 510
 511         if (dev->bus->bustype != SSB_BUSTYPE_PCI) {
 512                 /* This SSB device is not on a PCI host-bus. So the IRQs are
 513                  * not routed through the PCI core.
 514                  * So we must not enable routing through the PCI core. */
 515                 goto out;
 516         }
 517
 518         if (!pdev)
 519                 goto out;
 520         bus = pdev->bus;
 521
 522         might_sleep_if(pdev->id.coreid != SSB_DEV_PCI);
 523
 524         /* Enable interrupts for this device. */
 525         if ((pdev->id.revision >= 6) || (pdev->id.coreid == SSB_DEV_PCIE)) {
 526                 u32 coremask;
 527
 528                 /* Calculate the "coremask" for the device. */
 529                 coremask = (1 << dev->core_index);
 530
 531                 SSB_WARN_ON(bus->bustype != SSB_BUSTYPE_PCI);
 532                 err = pci_read_config_dword(bus->host_pci, SSB_PCI_IRQMASK, &tmp);
 533                 if (err)
 534                         goto out;
 535                 tmp |= coremask << 8;
 536                 err = pci_write_config_dword(bus->host_pci, SSB_PCI_IRQMASK, tmp);
 537                 if (err)
 538                         goto out;
 539         } else {
 540                 u32 intvec;
 541
 542                 intvec = ssb_read32(pdev, SSB_INTVEC);
 543                 tmp = ssb_read32(dev, SSB_TPSFLAG);
 544                 tmp &= SSB_TPSFLAG_BPFLAG;
 545                 intvec |= (1 << tmp);
 546                 ssb_write32(pdev, SSB_INTVEC, intvec);
 547         }
 548
 549         /* Setup PCIcore operation. */
 550         if (pc->setup_done)
 551                 goto out;
 552         if (pdev->id.coreid == SSB_DEV_PCI) {
 553                 tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
 554                 tmp |= SSB_PCICORE_SBTOPCI_PREF;
 555                 tmp |= SSB_PCICORE_SBTOPCI_BURST;
 556                 pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
 557
 558                 if (pdev->id.revision < 5) {
 559                         tmp = ssb_read32(pdev, SSB_IMCFGLO);
 560                         tmp &= ~SSB_IMCFGLO_SERTO;
 561                         tmp |= 2;
 562                         tmp &= ~SSB_IMCFGLO_REQTO;
 563                         tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT;
 564                         ssb_write32(pdev, SSB_IMCFGLO, tmp);
 565                         ssb_commit_settings(bus);
 566                 } else if (pdev->id.revision >= 11) {
 567                         tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
 568                         tmp |= SSB_PCICORE_SBTOPCI_MRM;
 569                         pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
 570                 }
 571         } else {
 572                 WARN_ON(pdev->id.coreid != SSB_DEV_PCIE);
 573                 //TODO: Better make defines for all these magic PCIE values.
 574                 if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) {
 575                         /* TLP Workaround register. */
 576                         tmp = ssb_pcie_read(pc, 0x4);
 577                         tmp |= 0x8;
 578                         ssb_pcie_write(pc, 0x4, tmp);
 579                 }
 580                 if (pdev->id.revision == 0) {
 581                         const u8 serdes_rx_device = 0x1F;
 582
 583                         ssb_pcie_mdio_write(pc, serdes_rx_device,
 584                                             2 /* Timer */, 0x8128);
 585                         ssb_pcie_mdio_write(pc, serdes_rx_device,
 586                                             6 /* CDR */, 0x0100);
 587                         ssb_pcie_mdio_write(pc, serdes_rx_device,
 588                                             7 /* CDR BW */, 0x1466);
 589                 } else if (pdev->id.revision == 1) {
 590                         /* DLLP Link Control register. */
 591                         tmp = ssb_pcie_read(pc, 0x100);
 592                         tmp |= 0x40;
 593                         ssb_pcie_write(pc, 0x100, tmp);
 594                 }
 595         }
 596         pc->setup_done = 1;
 597 out:
 598         return err;
 599 }
 600 EXPORT_SYMBOL(ssb_pcicore_dev_irqvecs_enable);