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SubjectRe: [PATCH 4/5] ARC: AXS103: DTS: Set cpu frequency explicitly via dts
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On 08/14/2017 09:12 AM, Eugeniy Paltsev wrote:
> Set cpu frequency explicitly via "cpu-freq" param in cpu 0 node
> in device tree.
>
> We add "cpu-freq" only to cpu 0 as all cpus are clocking from same
> clock source (same pll in our case).
>
> We override cpus node in skeleton as we don't need this change for
> nsim.

Given that you added a generic feature as part of 1/5 - do other platforms
abilis/nps need corresponding fixups as this one !

>
> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
> ---
> arch/arc/boot/dts/axc003.dtsi | 13 +++++++++++++
> arch/arc/boot/dts/axc003_idu.dtsi | 35 +++++++++++++++++++++++++++++++++++
> 2 files changed, 48 insertions(+)
>
> diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi
> index dca7e39..7c7411c 100644
> --- a/arch/arc/boot/dts/axc003.dtsi
> +++ b/arch/arc/boot/dts/axc003.dtsi
> @@ -17,6 +17,19 @@
> #address-cells = <2>;
> #size-cells = <2>;
>
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + cpu@0 {
> + device_type = "cpu";
> + compatible = "snps,archs38";
> + reg = <0>;
> + cpu-freq = <100000000>;
> + clocks = <&core_clk>;
> + };
> + };
> +
> cpu_card {
> compatible = "simple-bus";
> #address-cells = <1>;
> diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
> index 5b56bef..44bc01e 100644
> --- a/arch/arc/boot/dts/axc003_idu.dtsi
> +++ b/arch/arc/boot/dts/axc003_idu.dtsi
> @@ -17,6 +17,41 @@
> #address-cells = <2>;
> #size-cells = <2>;
>
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + /*
> + * "cpu-freq" was added only to cpu 0 as all cpus are clocking
> + * from same clock source (same pll (core_clk) in our case).
> + */
> + cpu@0 {
> + device_type = "cpu";
> + compatible = "snps,archs38";
> + reg = <0>;
> + cpu-freq = <100000000>;
> + clocks = <&core_clk>;
> + };
> + cpu@1 {
> + device_type = "cpu";
> + compatible = "snps,archs38";
> + reg = <1>;
> + clocks = <&core_clk>;
> + };
> + cpu@2 {
> + device_type = "cpu";
> + compatible = "snps,archs38";
> + reg = <2>;
> + clocks = <&core_clk>;
> + };
> + cpu@3 {
> + device_type = "cpu";
> + compatible = "snps,archs38";
> + reg = <3>;
> + clocks = <&core_clk>;
> + };
> + };
> +
> cpu_card {
> compatible = "simple-bus";
> #address-cells = <1>;

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