arm: mvebu: Add initial support for power managmement service unit

The Armada 370 and Armada XP SOCs have a power management service unit
which is responsible for powering down and waking up CPUs and other
SOC units. This patch adds support for this unit.

Signed-off-by: Yehuda Yitschak <yehuday@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/armada-370-xp-pmsu.txt b/Documentation/devicetree/bindings/arm/armada-370-xp-pmsu.txt
new file mode 100644
index 000000000000..926b4d6aae7e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/armada-370-xp-pmsu.txt
@@ -0,0 +1,20 @@
+Power Management Service Unit(PMSU)
+-----------------------------------
+Available on Marvell SOCs: Armada 370 and Armada XP
+
+Required properties:
+
+- compatible: "marvell,armada-370-xp-pmsu"
+
+- reg: Should contain PMSU registers location and length. First pair
+  for the per-CPU SW Reset Control registers, second pair for the
+  Power Management Service Unit.
+
+Example:
+
+armada-370-xp-pmsu@d0022000 {
+        compatible = "marvell,armada-370-xp-pmsu";
+        reg = <0xd0022100 0x430>,
+              <0xd0020800 0x20>;
+};
+