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 at 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 at 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 at 0 { > + device_type = "cpu"; > + compatible = "snps,archs38"; > + reg = <0>; > + cpu-freq = <100000000>; > + clocks = <&core_clk>; > + }; > + cpu at 1 { > + device_type = "cpu"; > + compatible = "snps,archs38"; > + reg = <1>; > + clocks = <&core_clk>; > + }; > + cpu at 2 { > + device_type = "cpu"; > + compatible = "snps,archs38"; > + reg = <2>; > + clocks = <&core_clk>; > + }; > + cpu at 3 { > + device_type = "cpu"; > + compatible = "snps,archs38"; > + reg = <3>; > + clocks = <&core_clk>; > + }; > + }; > + > cpu_card { > compatible = "simple-bus"; > #address-cells = <1>;