Ok, here's the new patch to apply on top of the old patch.  This is my 
first time using bk to generate a patch, so I beg forgiveness if 
something goes wrong.

...
Ok, I had to find a bug in the patch, first, so this got delayed from 
yesterday.  But now it works.  The patch includes a one-line addition 
to mii.h, declaring BMCR_SPEED1000, which is undefined on 10/100 PHYs, 
but seems to be used on all gigabit PHYs to form a two-bit field with 
BMCR_SPEED100, indicating gigabit speeds when their values are 1 and 0, 
respectively.

Andy