Re: [PATCH] net: dsa: mv88e6xxx: prevent 2500BASEX mode override

If we can't switch between 1000base-X and 2500base-X, then we should
not be calling phylink_helper_basex_speed() - and only one of those
two capabilities should be set in the validation callback. I thought
there were DSA switches where we could program the CMODE to switch
between these two...

6390 family has a writable CMODE for ports 9 and 10, and you can
select various SERDES modes.

Nathan, what device are you using?

	Andrew