Signed-off-by: Yinghai Lu <ying...@kernel.org>
Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
---
 arch/powerpc/include/asm/pci-bridge.h |    1 +
 arch/powerpc/kernel/pci-common.c      |   10 +++++++++-
 2 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/include/asm/pci-bridge.h 
b/arch/powerpc/include/asm/pci-bridge.h
index 5d48765..11cebf0 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -30,6 +30,7 @@ struct pci_controller {
        int first_busno;
        int last_busno;
        int self_busno;
+       struct resource busn;
 
        void __iomem *io_base_virt;
 #ifdef CONFIG_PPC64
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 910b9de..ee8c0c9 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1648,6 +1648,11 @@ void __devinit pcibios_scan_phb(struct pci_controller 
*hose)
        /* Wire up PHB bus resources */
        pcibios_setup_phb_resources(hose, &resources);
 
+       hose->busn.start = hose->first_busno;
+       hose->busn.end   = hose->last_busno;
+       hose->busn.flags = IORESOURCE_BUS;
+       pci_add_resource(&resources, &hose->busn);
+
        /* Create an empty bus for the toplevel */
        bus = pci_create_root_bus(hose->parent, hose->first_busno,
                                  hose->ops, hose, &resources);
@@ -1670,8 +1675,11 @@ void __devinit pcibios_scan_phb(struct pci_controller 
*hose)
                of_scan_bus(node, bus);
        }
 
-       if (mode == PCI_PROBE_NORMAL)
+       if (mode == PCI_PROBE_NORMAL) {
+               pci_bus_update_busn_res_end(bus, 255);
                hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
+               pci_bus_update_busn_res_end(bus, bus->subordinate);
+       }
 
        /* Platform gets a chance to do some global fixups before
         * we proceed to resource allocation
-- 
1.7.7

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