K 10
svn:author
V 3
ian
K 8
svn:date
V 27
2015-03-27T23:10:15.599773Z
K 7
svn:log
V 464
Make simplebus a base class of ofwbus.  This allows the elimination of
duplicated code in the two classes, and also allows devices in FDT-based
systems to declare simplebus as their parent and still work correctly
when the FDT data describes the device at the root of the tree rather
than as a child of a simplebus (which is common for interrupt, clock,
and power controllers).

Differential Revision:	https://reviews.freebsd.org/D1990
Submitted by:	Michal Meloun

END