> > check_mem_region(virt_to_phys(ioremap(ISA_address)), ...) > > > > which might be the best way for now? > > I agree with Geert and think isa_xxx_mem_region is a better approach. > Unfortunately, this requires a change in both dirver and > arch-specific part. Its something that can be done progressively however as we fixup stuff. It'll just "happen" to work on x86 either way. Alan