[PATCH v2 5/7] ARM: shmobile: Document DT bindings for CCCR and PRR
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: 2016-10-31 11:32:04
Also in:
linux-devicetree, linux-renesas-soc, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add device tree binding documentation for the Common Chip Code Register and Product Register, which provide SoC product and revision information. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- v2: - New. --- Documentation/devicetree/bindings/arm/shmobile.txt | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/shmobile.txt b/Documentation/devicetree/bindings/arm/shmobile.txt
index 15669642b5324412..bff1b596b235c535 100644
--- a/Documentation/devicetree/bindings/arm/shmobile.txt
+++ b/Documentation/devicetree/bindings/arm/shmobile.txt@@ -79,3 +79,29 @@ Boards: compatible = "renesas,sk-rzg1m", "renesas,r8a7743" - Wheat compatible = "renesas,wheat", "renesas,r8a7792" + + +Most Renesas ARM SoCs have one or two registers (Common Chip Code +Register and/or Product Register) that allow to retrieve SoC product and +revision information. If present, device nodes for these devices should +be added. + +Required properties: + - compatible: Must be one of: + - "renesas,cccr" for the Common Chip Code Register, + - "renesas,prr" for the Product Register. + - reg: Base address and length of the register block. + + +Examples +-------- + + cccr: chipid@e600101c { + compatible = "renesas,cccr"; + reg = <0xe600101c 4>; + }; + + prr: chipid@ff000044 { + compatible = "renesas,prr"; + reg = <0 0xff000044 0 4>; + };
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1.9.1