From 8626816e905e8e131663dfcae27d307df8c220d0 Mon Sep 17 00:00:00 2001 From: Jia Hongtao Date: Fri, 17 Feb 2012 10:49:03 +0800 Subject: powerpc: add support for MPIC message register API Some MPIC implementations contain one or more blocks of message registers that are used to send messages between cores via IPIs. A simple API has been added to access (get/put, read, write, etc ...) these message registers. The available message registers are initially discovered via nodes in the device tree. A separate commit contains a binding for the message register nodes. Signed-off-by: Meador Inge Signed-off-by: Jia Hongtao Signed-off-by: Li Yang Signed-off-by: Kumar Gala --- arch/powerpc/platforms/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch/powerpc/platforms/Kconfig') diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index 236ab67bc3a4..a35ca44ade66 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -86,6 +86,14 @@ config MPIC_WEIRD bool default n +config MPIC_MSGR + bool "MPIC message register support" + depends on MPIC + default n + help + Enables support for the MPIC message registers. These + registers are used for inter-processor communication. + config PPC_I8259 bool default n -- cgit v1.2.3