--- arch/mips/pci/ops-pmcmsp.c

+++ arch/mips/pci/ops-pmcmsp.c

@@ -944,6 +944,7 @@ static struct pci_controller msp_pci_con

.pci_ops = &msp_pci_ops,

.mem_resource = &pci_mem_resource,

.mem_offset = 0,

+ .io_map_base = MSP_PCI_IOSPACE_BASE,

.io_resource = &pci_io_resource,

.io_offset = 0

};