[RFC PATCH v2 4/6] powerpc: wii: hollywood interrupt controller support

[Segher Boessenkool]

> Add support for the dual interrupt controller included in the  
> "Hollywood"
> chipset of the Nintendo Wii video game console.
> This interrupt controller serves both the Broadway processor (as a  
> cascade)
> and the Starlet processor, and is used to manage interrupts for the
> non-classic hardware.
>
> Signed-off-by: Albert Herranz <albert_herranz at yahoo.es>
Acked-by: Segher Boessenkool <segher at kernel.crashing.org>