K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2012-10-15T16:05:02.492737Z
K 7
svn:log
V 314
Add locking to the ahb(4) driver and mark it MPSAFE.
- Use device_printf() and device_get_unit() instead of storing the unit
  number in the softc.
- Remove use of explicit bus space handles and tags.
- Compare pointers against NULL.
- Let new-bus allocate a softc rather than doing it by hand.

Tested by:	no one

END