[PATCH v3 0/2] powerpc: define and implement MPIC message register support

[Meador Inge]

This patch set defines a binding for FSL MPIC message registers and implements
an API for accessing those message registers.  Testing was done on a MPC8572DS
in an Linux-Linux AMP setup using OpenMCAPI (www.openmcapi.org) to communicate
between OS instances.  The message register API is used by the OpenMCAPI shared 
memory driver to send notifications between cores.

* v3 - Clarified a point in the binding concerning the length of the
       'interrupts' property.  Pointed out by Scott Wood.

* v2 - Incorporate feedback from Scott Wood
   * Make binding less implementation specific.
   * Add 'mpic-' prefix to message register node properties and aliases.
   * Remove 'interrupt-parent' from binding.
   * Fixed some example bugs with receive masks.

Signed-off-by: Meador Inge <meador_inge at mentor.com>
Cc: Hollis Blanchard <hollis_blanchard at mentor.com>

Meador Inge (2):
  powerpc: document the FSL MPIC message register binding
  powerpc: add support for MPIC message register API

 .../devicetree/bindings/powerpc/fsl/mpic-msgr.txt  |   62 +++++
 arch/powerpc/include/asm/mpic_msgr.h               |   35 +++
 arch/powerpc/platforms/Kconfig                     |    8 +
 arch/powerpc/sysdev/Makefile                       |    3 +-
 arch/powerpc/sysdev/mpic_msgr.c                    |  279 ++++++++++++++++++++
 5 files changed, 386 insertions(+), 1 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/powerpc/fsl/mpic-msgr.txt
 create mode 100644 arch/powerpc/include/asm/mpic_msgr.h
 create mode 100644 arch/powerpc/sysdev/mpic_msgr.c