[Skiboot] [PATCH 17/33] hw/phb4: Add initial support

[Benjamin Herrenschmidt]

On Sat, 2016-06-25 at 08:47 +1000, Benjamin Herrenschmidt wrote:
> This adds the base support for the PHB4. It currently only support
> the M32 window, EEH or in general error recovery aren't supported
> yet.

Small correction to the commit message: M64 are supported though
without some of the P9 improvements of supporting more segment
divisions. This will come later.

Cheers,
Ben.