diff options
| -rw-r--r-- | drivers/pci/probe.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 233d1c275d96..d3009430eab6 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -316,13 +316,17 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child) limit |= (io_limit_hi << 16); } - if (base <= limit) { + if (base && base <= limit) { res->flags = (io_base_lo & PCI_IO_RANGE_TYPE_MASK) | IORESOURCE_IO; if (!res->start) res->start = base; if (!res->end) res->end = limit + 0xfff; dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res); + } else { + dev_printk(KERN_DEBUG, &dev->dev, + " bridge window [io %04lx - %04lx] reg reading\n", + base, limit); } res = child->resource[1]; @@ -330,11 +334,15 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child) pci_read_config_word(dev, PCI_MEMORY_LIMIT, &mem_limit_lo); base = (mem_base_lo & PCI_MEMORY_RANGE_MASK) << 16; limit = (mem_limit_lo & PCI_MEMORY_RANGE_MASK) << 16; - if (base <= limit) { + if (base && base <= limit) { res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM; res->start = base; res->end = limit + 0xfffff; dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res); + } else { + dev_printk(KERN_DEBUG, &dev->dev, + " bridge window [mem 0x%08lx - 0x%08lx] reg reading\n", + base, limit + 0xfffff); } res = child->resource[2]; @@ -366,7 +374,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child) #endif } } - if (base <= limit) { + if (base && base <= limit) { res->flags = (mem_base_lo & PCI_PREF_RANGE_TYPE_MASK) | IORESOURCE_MEM | IORESOURCE_PREFETCH; if (res->flags & PCI_PREF_RANGE_TYPE_64) @@ -374,6 +382,10 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child) res->start = base; res->end = limit + 0xfffff; dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res); + } else { + dev_printk(KERN_DEBUG, &dev->dev, + " bridge window [mem 0x%08lx - %08lx pref] reg reading\n", + base, limit + 0xfffff); } } |