On Wed, Mar 10, 2010 at 11:11:38PM +0900, Masao Uebayashi wrote: > > What is *the* "bus_addr_t of a device instance"? > > That depends.
On what? > And this answer has never been answered. This is why we have all the > messy MD bus code like rbus... I disagree (not on messy, MD, rbus, but on above question being unanswerable having anything to do with it). > > nor why you would want to do this at all. > > Because NetBSD/arm (imx31) had no bus_space_mmap(9). See Ah, for mmap - but architectures with multiple MMUs there might not be a single answer, and if there is, it might not stay constant infinitely. Martin