ODwyerPW / cowasaki
I am pleased to know you are interested on this project.
In reference to the PHY module, I made a quick review on the phy driver component and class' functions and I believe that 'any' Ethernet PHY module should work with the EMAC. Indeed, I am considering to use a couple of other PHYs different from DM9161. Remember, I chose DM9161 trying to build this interface as close as possible to the original from Atmel.