Ian Lepore f61b6fe561 Use bus_space_map() rather than pmap_mapdev() in nexus_activate_resource(),
when running on FDT systems.  Unmap memory in nexus_deactivate_resource().

Also, call rman_activate_resource() before mapping device memory, and only
do the mapping if it returns success.

Reviewed by:	nwhitehorn
2014-01-04 21:18:22 +00:00
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