diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index 57a2a494886befada20215df66518bfe37ec6e17..55542ac3eadb2a689f3870841db8e11d7ae3506e 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -235,7 +235,6 @@ extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
 				 const struct resource *rsrc,
 				 resource_size_t *start, resource_size_t *end);
 
-extern void pcibios_do_bus_setup(struct pci_bus *bus);
 extern void pcibios_fixup_of_probed_bus(struct pci_bus *bus);
 
 
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 6d46bfabdbe431cdf623a7097bceba3160942c2e..780db386c1f0c78eb37423695447c2843383c032 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1076,18 +1076,24 @@ static void __devinit pcibios_fixup_bridge(struct pci_bus *bus)
 
 static void __devinit __pcibios_fixup_bus(struct pci_bus *bus)
 {
-	struct pci_dev *dev = bus->self;
+	struct pci_dev *dev;
 
-	pr_debug("PCI: Fixup bus %d (%s)\n", bus->number, dev ? pci_name(dev) : "PHB");
+	pr_debug("PCI: Fixup bus %d (%s)\n",
+		 bus->number, bus->self ? pci_name(bus->self) : "PHB");
 
 	/* Fixup PCI<->PCI bridges. Host bridges are handled separately, for
 	 * now differently between 32 and 64 bits.
 	 */
-	if (dev != NULL)
+	if (bus->self != NULL)
 		pcibios_fixup_bridge(bus);
 
-	/* Additional setup that is different between 32 and 64 bits for now */
-	pcibios_do_bus_setup(bus);
+	/* Setup bus DMA mappings */
+	if (ppc_md.pci_dma_bus_setup)
+		ppc_md.pci_dma_bus_setup(bus);
+
+	/* Setup DMA for all PCI devices on that bus */
+	list_for_each_entry(dev, &bus->devices, bus_list)
+		pcibios_setup_new_device(dev);
 
 	/* Platform specific bus fixups */
 	if (ppc_md.pcibios_fixup_bus)
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 883040358273637d4e96f6eb876f078ecd1b56d8..7ad11e592f2ba62a65e6a8b35a9b71958b8e9504 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -446,17 +446,6 @@ static int __init pcibios_init(void)
 
 subsys_initcall(pcibios_init);
 
-void __devinit pcibios_do_bus_setup(struct pci_bus *bus)
-{
-	struct pci_dev *dev;
-
-	if (ppc_md.pci_dma_bus_setup)
-		ppc_md.pci_dma_bus_setup(bus);
-
-	list_for_each_entry(dev, &bus->devices, bus_list)
-		pcibios_setup_new_device(dev);
-}
-
 /* the next one is stolen from the alpha port... */
 void __init
 pcibios_update_irq(struct pci_dev *dev, int irq)
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index f5fc547284bca6eb26059928c49ffd3c48478123..e6e8813c364aba72c9a3b7fa80497d0955555590 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -507,17 +507,6 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
 }
 EXPORT_SYMBOL_GPL(pcibios_map_io_space);
 
-void __devinit pcibios_do_bus_setup(struct pci_bus *bus)
-{
-	struct pci_dev *dev;
-
-	if (ppc_md.pci_dma_bus_setup)
-		ppc_md.pci_dma_bus_setup(bus);
-
-	list_for_each_entry(dev, &bus->devices, bus_list)
-		pcibios_setup_new_device(dev);
-}
-
 unsigned long pci_address_to_pio(phys_addr_t address)
 {
 	struct pci_controller *hose, *tmp;