[PATCH 15/16] Add device tree for Ebony

[Benjamin Herrenschmidt]

> There cannot *exist* any children of the node.  Unless
> your hardware is really weird.  I guess it is :-)
> 
> In such a case, you just don't put a "reg" property in
> the kid nodes.

No. The #address-cells in the interrupt controller is necessary to
define the size of the unit address part of the unit interrupt specifier
of interrupt children. Re-read your spec :-)

Having it set to 0 provides the necessary definition so that the "right
hand" members of an interrupt map don't need a unit address in their
unit interrupt specifier.

Ben.