diff --git a/arch/powerpc/sysdev/indirect_pci.c b/arch/powerpc/sysdev/indirect_pci.c
index efe3cff8dcd153284b318d189e08384493c097c4..3a1612253c600b33d2aee10daf4f83d7b360121f 100644
--- a/arch/powerpc/sysdev/indirect_pci.c
+++ b/arch/powerpc/sysdev/indirect_pci.c
@@ -33,22 +33,27 @@ indirect_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
 	struct pci_controller *hose = bus->sysdata;
 	volatile void __iomem *cfg_data;
 	u8 cfg_type = 0;
-	u32 bus_no;
+	u32 bus_no, reg;
 
 	if (ppc_md.pci_exclude_device)
 		if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
 			return PCIBIOS_DEVICE_NOT_FOUND;
 	
-	if (hose->set_cfg_type)
+	if (hose->indirect_type & PPC_INDIRECT_TYPE_SET_CFG_TYPE)
 		if (bus->number != hose->first_busno)
 			cfg_type = 1;
 
 	bus_no = (bus->number == hose->first_busno) ?
 			hose->self_busno : bus->number;
 
+	if (hose->indirect_type & PPC_INDIRECT_TYPE_EXT_REG)
+		reg = ((offset & 0xf00) << 16) | (offset & 0xfc);
+	else
+		reg = offset & 0xfc;
+
 	PCI_CFG_OUT(hose->cfg_addr,
 		 (0x80000000 | (bus_no << 16)
-		  | (devfn << 8) | ((offset & 0xfc) | cfg_type)));
+		  | (devfn << 8) | reg | cfg_type));
 
 	/*
 	 * Note: the caller has already checked that offset is
@@ -76,22 +81,27 @@ indirect_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
 	struct pci_controller *hose = bus->sysdata;
 	volatile void __iomem *cfg_data;
 	u8 cfg_type = 0;
-	u32 bus_no;
+	u32 bus_no, reg;
 
 	if (ppc_md.pci_exclude_device)
 		if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
 			return PCIBIOS_DEVICE_NOT_FOUND;
 
-	if (hose->set_cfg_type)
+	if (hose->indirect_type & PPC_INDIRECT_TYPE_SET_CFG_TYPE)
 		if (bus->number != hose->first_busno)
 			cfg_type = 1;
 
 	bus_no = (bus->number == hose->first_busno) ?
 			hose->self_busno : bus->number;
 
+	if (hose->indirect_type & PPC_INDIRECT_TYPE_EXT_REG)
+		reg = ((offset & 0xf00) << 16) | (offset & 0xfc);
+	else
+		reg = offset & 0xfc;
+
 	PCI_CFG_OUT(hose->cfg_addr,
 		 (0x80000000 | (bus_no << 16)
-		  | (devfn << 8) | ((offset & 0xfc) | cfg_type)));
+		  | (devfn << 8) | reg | cfg_type));
 
 	/*
 	 * Note: the caller has already checked that offset is
diff --git a/include/asm-ppc/pci-bridge.h b/include/asm-ppc/pci-bridge.h
index 70aab6691043e1d38f9fcf6dd48906a8e950e405..0dee56b839a44d61c8a510686d3cfd8b7643ea3d 100644
--- a/include/asm-ppc/pci-bridge.h
+++ b/include/asm-ppc/pci-bridge.h
@@ -65,9 +65,19 @@ struct pci_controller {
 	/*
 	 * If set, indirect method will set the cfg_type bit as
 	 * needed to generate type 1 configuration transactions.
+	 * use only on ARCH=ppc
 	 */
 	int set_cfg_type;
 
+	/*
+	 * Used for variants of PCI indirect handling and possible quirks:
+	 *  SET_CFG_TYPE - used on 4xx or any PHB that does explicit type0/1
+	 *  EXT_REG - provides access to PCI-e extended registers
+	 */
+#define PPC_INDIRECT_TYPE_SET_CFG_TYPE		(0x00000001)
+#define PPC_INDIRECT_TYPE_EXT_REG		(0x00000002)
+	u32 indirect_type;
+
 	/* Currently, we limit ourselves to 1 IO range and 3 mem
 	 * ranges since the common pci_bus structure can't handle more
 	 */