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Date: Fri, 31 Mar 2017 10:47:58 +0200
From: Neil Armstrong <narmstrong@...libre.com>
To: khilman@...libre.com, carlo@...one.org
Cc: Neil Armstrong <narmstrong@...libre.com>,
linux-amlogic@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH 2/3] dt-bindings: arm: amlogic: Add SoC information bindings
Add bindings for the SoC information register of the Amlogic SoCs.
Signed-off-by: Neil Armstrong <narmstrong@...libre.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
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