| Message ID | 1477913455-5314-6-git-send-email-geert+renesas@glider.be (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
On Mon, Oct 31, 2016 at 12:30:53PM +0100, Geert Uytterhoeven wrote: > 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(+) Acked-by: Rob Herring <robh@kernel.org>
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>; + };
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(+)