+config INDIRECT_IOMEM
+ bool
+ help
+ This is selected by other options/architectures to provide the
+ emulated iomem accessors.
+
+config INDIRECT_IOMEM_FALLBACK
+ bool
+ depends on INDIRECT_IOMEM
+ help
+ If INDIRECT_IOMEM is selected, this enables falling back to plain
+ mmio accesses when the IO memory address is not a registered
+ emulated region.
+