--- arch/mips/nxp/pnx8550/common/pci.c

+++ arch/mips/nxp/pnx8550/common/pci.c

@@ -44,6 +44,7 @@ extern struct pci_ops pnx8550_pci_ops;

static struct pci_controller pnx8550_controller = {

.pci_ops = &pnx8550_pci_ops,

+ .io_map_base = PNX8550_PORT_BASE,

.io_resource = &pci_io_resource,

.mem_resource = &pci_mem_resource,

};