--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -1234,6 +1234,14 @@ static void __devinit fixup_resource(str
struct pci_controller *hose = pci_bus_to_host(dev->bus);
unsigned long start, end, mask, offset;
+ /*
+ * tell the core code that this ressource is unassigned
+ * fixes p630 winbond IDE with libata
+ */
+ if (res->start == 0) {
+ res->flags = 0;
+ return;
+ }
if (res->flags & IORESOURCE_IO) {
offset = (unsigned long)hose->io_base_virt - pci_io_base;
Please make this run on pSeries only; on a PowerMac for
example, it's totally normal that the first PCI legacy I/O
BAR in the system gets assigned 0.
Segher
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