[v3,5/6] ARM: rockchip: Add pmu-sram binding

Commit Message

Chris Zhong Oct. 21, 2014, 3:44 a.m. UTC

From: Chris Zhong <[e-mail]>

The pmu-sram is used to store resume code, suspend/resume need get the
address of it. Therefore add a binding and documentation for it.

Signed-off-by: Tony Xie <[e-mail]>
Signed-off-by: Chris Zhong <[e-mail]>
---

Changes in v3: None
Changes in v2: None

 .../devicetree/bindings/arm/rockchip/pmu-sram.txt  |   15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt

Patch

diff --git a/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt b/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt
new file mode 100644
index 0000000..77284c0
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt
@@ -0,0 +1,15 @@ 
+Rockchip SRAM for pmu:
+------------------------------
+
+The sram of pmu is used to store the function of resume from maskrom(the 1st
+level loader).
+
+Required node properties:
+- compatible : should be "rockchip,rk3288-pmu-sram"
+- reg : physical base address and the size of the registers window
+
+Example:
+	pmu_intmem@ff720000 {
+		compatible = "rockchip,rk3288-pmu-sram", "mmio-sram";
+		reg = <0xff720000 0x4000>;
+	};