I just checked in a load of changes for the sun3x port.
Here is a quick summary:

* Fix a bug in obio.c which caused the "ipl" and "vect" locators
  to be left as -1 (default) for each OBIO child driver.

* Reorder some of the early startup work to allow the idprom
  driver to use peek_byte(), so it can figure out where the
  idprom is.  (Different locations on 3/470 vs 3/80).

* Add support for the old Intersil clock (as "oclock") that
  will be needed for the 3/470, and arrange the probe order
  to allow determination of which type of clock we have.

* Minor cleanup (i.e. do the eeprom and clock device init
  during normal autoconfiguration instead of "very early";
  do machine model identification in the "normal" place.)

There is one change I am still sitting on, which sould help
reduce interrupt latency at level six, which is needed to
keep the floppy driver happy.  This change will affect some
other platforms, so I don't want to check it in just yet.
(The change is to dev/ic/z8530sc.c - let me know if you
 would like to help test it.)

Have a great week-end!
Gordon