In message <20040428123105.6fcac71c.darcy@NetBSD.org>"D'Arcy J.M. Cain" writes
>Thanks.  I was confused by the dmesg display.
>
>brgphy1 at bge1 phy 1: BCM5704 1000BASE-T media interface, rev. 0
>brgphy1: using BCM5704 DSP patch


Its really confusing.  The original bcm5700 didn't have an integrated
phy; they used an external bcm540x PHY chip. Those are shown as
brgphy? at bge?, bcm5401. Later derivate chips have an integrated
5401 phy, which is still shown as a 5401.

Still later revisions (e.g., 5701, 5703, 5704, 5705) have revised
integrated PHYs which (AFAIK) aren't produced or sold standalone.
The brgphy driver shows these PHYs as a 570x, as that's the only place
they show up.