diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h
index b4326b5..26373cf 100644
--- a/include/asm-generic/pci.h
+++ b/include/asm-generic/pci.h
@@ -30,7 +30,18 @@
 	res->end = region->end;
 }
 
-#define pcibios_scan_all_fns(a, b)	0
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
 
 #ifndef HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)