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SubjectRe: [PATCH 1/2] dt-bindings: MIPS: Add doc about Ingenic CPU node.
On Wed, Jan 30, 2019 at 09:14:03PM +0800, Zhou Yanjie wrote:
> Dt-bindings doc about CPU node of Ingenic XBurst based SOCs.
>
> Signed-off-by: Zhou Yanjie <zhouyanjie@zoho.com>
> ---
> .../devicetree/bindings/mips/ingenic/ingenic,cpu.txt | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mips/ingenic/ingenic,cpu.txt
>
> diff --git a/Documentation/devicetree/bindings/mips/ingenic/ingenic,cpu.txt b/Documentation/devicetree/bindings/mips/ingenic/ingenic,cpu.txt
> new file mode 100644
> index 0000000..38e3cd3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mips/ingenic/ingenic,cpu.txt
> @@ -0,0 +1,17 @@
> +Ingenic Soc CPU
> +
> +Required properties:
> +- device_type: Must be "cpu".
> +- compatible: One of:
> + - "ingenic,xburst".

Only 1 version?

Is everything else discoverable or implied by this? Cache sizes,
instruction set features, bugs, etc.?

> +- reg: The number of the CPU.

Ideally, this should be based on some h/w id, but generally only SMP
processors have that.

BTW, is SMP supported? If so, you need to define how secondary cores get
booted (unless that is standard and implied).

> +- next-level-cache: If there is a next level cache, point to it.
> +
> +Example:
> +cpu0: cpu@0 {
> + device_type = "cpu";
> + compatible = "ingenic,xburst";
> + reg = <0>;
> + next-level-cache = <&l2c>;
> +};
> +
> --
> 2.7.4
>
>

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