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-rw-r--r--arch/powerpc/kernel/pci_64.c37
1 files changed, 13 insertions, 24 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 6d05a1f377b..b0409e19b1c 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -1098,35 +1098,24 @@ static int get_bus_io_range(struct pci_bus *bus, unsigned long *start_phys,
unsigned long *start_virt, unsigned long *size)
{
struct pci_controller *hose = pci_bus_to_host(bus);
- struct pci_bus_region region;
struct resource *res;
- if (bus->self) {
+ if (bus->self)
res = bus->resource[0];
- pcibios_resource_to_bus(bus->self, &region, res);
- *start_phys = hose->io_base_phys + region.start;
- *start_virt = (unsigned long) hose->io_base_virt +
- region.start;
- if (region.end > region.start)
- *size = region.end - region.start + 1;
- else {
- printk("%s(): unexpected region 0x%lx->0x%lx\n",
- __FUNCTION__, region.start, region.end);
- return 1;
- }
-
- } else {
+ else
/* Root Bus */
res = &hose->io_resource;
- *start_phys = hose->io_base_phys + res->start;
- *start_virt = (unsigned long) hose->io_base_virt + res->start;
- if (res->end > res->start)
- *size = res->end - res->start + 1;
- else {
- printk("%s(): unexpected region 0x%lx->0x%lx\n",
- __FUNCTION__, res->start, res->end);
- return 1;
- }
+
+ *start_virt = pci_io_base + res->start;
+ *start_phys = *start_virt + hose->io_base_phys
+ - (unsigned long) hose->io_base_virt;
+
+ if (res->end > res->start)
+ *size = res->end - res->start + 1;
+ else {
+ printk("%s(): unexpected region 0x%lx->0x%lx\n",
+ __FUNCTION__, res->start, res->end);
+ return 1;
}
return 0;