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-rw-r--r--arch/powerpc/kernel/pci_64.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 39fadc6e1492..586962f65c2a 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -560,9 +560,14 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
* G5 machines... So when something asks for bus 0 io base
* (bus 0 is HT root), we return the AGP one instead.
*/
- if (machine_is_compatible("MacRISC4"))
- if (in_bus == 0)
+ if (in_bus == 0 && machine_is_compatible("MacRISC4")) {
+ struct device_node *agp;
+
+ agp = of_find_compatible_node(NULL, NULL, "u3-agp");
+ if (agp)
in_bus = 0xf0;
+ of_node_put(agp);
+ }
/* That syscall isn't quite compatible with PCI domains, but it's
* used on pre-domains setup. We return the first match