diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index fd42059ae2a5..e27342ef128b 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -73,7 +73,7 @@ static int __init pcibios_init(void)
 	return 0;
 }
 
-subsys_initcall(pcibios_init);
+subsys_initcall_sync(pcibios_init);
 
 int pcibios_unmap_io_space(struct pci_bus *bus)
 {