Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
  */
 int pci_domain_nr(struct pci_bus *bus)
 {
-       if (firmware_has_feature(FW_FEATURE_ISERIES))
-               return 0;
-       else {
-               struct pci_controller *hose = pci_bus_to_host(bus);
+       struct pci_controller *hose = pci_bus_to_host(bus);
 
-               return hose->global_number;
-       }
+       return hose->global_number;
 }
-
 EXPORT_SYMBOL(pci_domain_nr);
 
 #ifdef CONFIG_PPC_OF
 
                phb = pcibios_alloc_controller(node);
                if (phb == NULL)
                        continue;
+               /* All legacy iSeries PHBs are in domain zero */
+               phb->global_number = 0;
 
                phb->pci_mem_offset = bus;
                phb->first_busno = bus;