> > I also hope to borrow much, if not all, of the Ebus stuff emerging
> > in the sparc64 port. In fact, a common `/sys/dev/{sun/?}ebus'
> > should be erected a.s.a.p.
> 
> I think you will need 64-bit `paddr_t's or `bus_addr_t's first.

Why?

The common bus code can import <machine/bus.h> to get those when
needed. And if 64-bit entities are inherent to the ebus design,
those should be coded as such explicitly. The common sbus interface
and drivers work in the same way.

-pk