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-rw-r--r--arch/powerpc/kernel/rtas_pci.c27
1 files changed, 4 insertions, 23 deletions
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index b4a0de79c060..2576e12d7255 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -231,32 +231,13 @@ void __init init_pci_config_tokens (void)
unsigned long __devinit get_phb_buid (struct device_node *phb)
{
- int addr_cells;
- const unsigned int *buid_vals;
- unsigned int len;
- unsigned long buid;
-
- if (ibm_read_pci_config == -1) return 0;
+ struct resource r;
- /* PHB's will always be children of the root node,
- * or so it is promised by the current firmware. */
- if (phb->parent == NULL)
+ if (ibm_read_pci_config == -1)
return 0;
- if (phb->parent->parent)
- return 0;
-
- buid_vals = get_property(phb, "reg", &len);
- if (buid_vals == NULL)
+ if (of_address_to_resource(phb, 0, &r))
return 0;
-
- addr_cells = prom_n_addr_cells(phb);
- if (addr_cells == 1) {
- buid = (unsigned long) buid_vals[0];
- } else {
- buid = (((unsigned long)buid_vals[0]) << 32UL) |
- (((unsigned long)buid_vals[1]) & 0xffffffff);
- }
- return buid;
+ return r.start;
}
static int phb_set_bus_ranges(struct device_node *dev,