--- a/drivers/bcma/driver_pci_host.c
+++ b/drivers/bcma/driver_pci_host.c
@@ -491,8 +491,9 @@ void __devinit bcma_core_pci_hostmode_in
 	/* Ok, ready to run, register it to the system.
 	 * The following needs change, if we want to port hostmode
 	 * to non-MIPS platform. */
-	io_map_base = (unsigned long)ioremap_nocache(BCMA_SOC_PCI_MEM,
-						     0x04000000);
+	io_map_base = (unsigned long)ioremap_nocache(pc_host->mem_resource.start,
+						     pc_host->mem_resource.end -
+						     pc_host->mem_resource.start + 1);
 	pc_host->pci_controller.io_map_base = io_map_base;
 	set_io_port_base(pc_host->pci_controller.io_map_base);
 	/* Give some time to the PCI controller to configure itself with the new
