My only exposure to HomePNA was that I ran across a trivial bug in 
NetBSD's amphy driver for the AMD 79c901 which is an Ethernet MII PHY 
which implements HomePNA 1.0 - it was a simple thing that I fixed 
last fall.

Based on that, HomePNA seems to be Ethernet with a different kind of 
PHY (i.e. nothing especially special required) and our support for 
HomePNA is thus hiding in the various PHYs we support. We even have a 
generic ukphy driver for any PHY that we don't recognize - that 
driver simply follows the basic IEEE standard for talking to a PHY, 
and that seems to work a lot of the time.

	Erik <fair@netbsd.org>