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_i...@mentor.com>
Cc: Hollis Blanchard <hollis_blanch...@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
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