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2 Commits

Author SHA1 Message Date
Nathan Whitehorn
eaef5f0af8 Provide for multiple, cascaded PICs on PowerPC systems, and extend the 
OFW interrupt map interface to also return the device's interrupt parent.

MFC after:	8.1-RELEASE
 2010-06-18 14:06:27 +00:00
Nathan Whitehorn
ca2c19312e Add support for the U4 PCI-Express bridge chipset used in late-generation 
Powermac G5 systems. MSI and several other things are not presently
supported.

The U3/U4 internal device support portions of this change were contributed
by Andreas Tobler.

MFC after:	1 week
 2010-05-16 15:18:25 +00:00