[PATCH 2/3] dt-bindings: arm: amlogic: Add SoC information bindings

[Neil Armstrong <narmstrong@baylibre.com>]

Add bindings for the SoC information register of the Amlogic SoCs.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
 Documentation/devicetree/bindings/arm/amlogic.txt | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt
index bfd5b55..b850985 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.txt
+++ b/Documentation/devicetree/bindings/arm/amlogic.txt
@@ -52,3 +52,23 @@ Board compatible values:
   - "amlogic,q201" (Meson gxm s912)
   - "nexbox,a95x" (Meson gxbb or Meson gxl s905x)
   - "nexbox,a1" (Meson gxm s912)
+
+Amlogic Meson GX SoCs Information
+----------------------------------
+
+The Meson SoCs have a Product Register that allows to retrieve SoC type,
+package and revision information. If present, a device node for this register
+should be added.
+
+Required properties:
+  - compatible: For Meson GX SoCs, must be "amlogic,meson-gx-socinfo".
+  - reg: Base address and length of the register block.
+
+Examples
+--------
+
+	chipid@220 {
+		compatible = "amlogic,meson-gx-socinfo";
+		reg = <0x0 0x00220 0x0 0x4>;
+	};
+
-- 
1.9.1