cpuidle: add Calxeda SOC idle support

Add support for core powergating on Calxeda platforms. Initially, this
supports ECX-1000 (highbank), but support will be added for ECX-2000
later.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Len Brown <len.brown@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig
index a76b689e553b..d2d007b0651a 100644
--- a/drivers/cpuidle/Kconfig
+++ b/drivers/cpuidle/Kconfig
@@ -21,3 +21,13 @@ config CPU_IDLE_GOV_MENU
 
 config ARCH_NEEDS_CPU_IDLE_COUPLED
         def_bool n
+
+if CPU_IDLE
+
+config CPU_IDLE_CALXEDA
+        bool "CPU Idle Driver for Calxeda processors"
+        depends on ARCH_HIGHBANK
+        help
+          Select this to enable cpuidle on Calxeda processors.
+
+endif