1 files changed, 13 insertions, 0 deletions

diff --git a/arch/ppc64/kernel/pmac_setup.c b/arch/ppc64/kernel/pmac_setup.c
index e7f695dcd8c8..325426c7bed0 100644
--- a/arch/ppc64/kernel/pmac_setup.c
+++ b/arch/ppc64/kernel/pmac_setup.c
@@ -477,6 +477,18 @@ static int __init pmac_probe(int platform)
         return 1;
 }
 
+static int pmac_probe_mode(struct pci_bus *bus)
+{
+        struct device_node *node = bus->sysdata;
+
+        /* We need to use normal PCI probing for the AGP bus,
+           since the device for the AGP bridge isn't in the tree. */
+        if (bus->self == NULL && device_is_compatible(node, "u3-agp"))
+                return PCI_PROBE_NORMAL;
+
+        return PCI_PROBE_DEVTREE;
+}
+
 struct machdep_calls __initdata pmac_md = {
 #ifdef CONFIG_HOTPLUG_CPU
         .cpu_die                = generic_mach_cpu_die,
@@ -488,6 +500,7 @@ struct machdep_calls __initdata pmac_md = {
         .init_IRQ               = pmac_init_IRQ,
         .get_irq                = mpic_get_irq,
         .pcibios_fixup          = pmac_pcibios_fixup,
+        .pci_probe_mode         = pmac_probe_mode,
         .restart                = pmac_restart,
         .power_off              = pmac_power_off,
         .halt                   = pmac_halt,