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-rw-r--r--arch/powerpc/kernel/pci_dn.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index 12c4c9e9bbc7..1c18953514c3 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -31,6 +31,7 @@
#include <asm/pci-bridge.h>
#include <asm/pSeries_reconfig.h>
#include <asm/ppc-pci.h>
+#include <asm/firmware.h>
/*
* Traverse_func that inits the PCI fields of the device node.
@@ -59,6 +60,11 @@ static void * __devinit update_dn_pci_info(struct device_node *dn, void *data)
pdn->busno = (regs[0] >> 16) & 0xff;
pdn->devfn = (regs[0] >> 8) & 0xff;
}
+ if (firmware_has_feature(FW_FEATURE_ISERIES)) {
+ u32 *busp = (u32 *)get_property(dn, "linux,subbus", NULL);
+ if (busp)
+ pdn->bussubno = *busp;
+ }
pdn->pci_ext_config_space = (type && *type == 1);
return NULL;