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Commit 50007cbf authored by Junjie Wu's avatar Junjie Wu
Browse files

ARM64: dts: qcom: Enable CPU/CCI/Bus scaling support for MSM8994 



Different clusters support different frequencies. Use separate cpufreq
tables for different clusters.

Also enable CCI/Bus voting support by adding related devices.

Change-Id: I11da801f1b07a8be1dd8e12f6b445259cc861ac9
Signed-off-by: default avatarJunjie Wu <junjiew@codeaurora.org>
parent 63704274

arch/arm/boot/dts/qcom/msm8994-sim.dts

+23 −0
Original line number Diff line number Diff line
@@ -241,3 +241,26 @@ 
&blsp1_uart2 {

	status = "ok";

};



&msm_cpufreq {

	qcom,cpufreq-table-0 =

		<  199200 >,

		<  302400 >,

		<  384000 >,

		<  600000 >,

		<  691200 >,

		<  768000 >,

		<  844800 >,

		<  921600 >,

		<  940800 >;



	qcom,cpufreq-table-4 =

		<  199200 >,

		<  302400 >,

		<  384000 >,

		<  600000 >,

		<  691200 >,

		<  768000 >,

		<  844800 >,

		<  921600 >;

};

arch/arm/boot/dts/qcom/msm8994.dtsi

+85 −8
Original line number Diff line number Diff line
@@ -851,7 +851,80 @@ 
		#clock-cells = <1>;

	};



	qcom,msm-cpufreq {

	cci_cache: qcom,cci {

		compatible = "devfreq-simple-dev";

		clock-names = "devfreq_clk";

		clocks = <&clock_cpu clk_cci_clk>;

		governor = "cpufreq";

		freq-tbl-khz =

			<  150000 >,

			<  200000 >,

			<  249600 >,

			<  300000 >,

			<  384000 >,

			<  499200 >,

			<  600000 >;

	};



	cpubw: qcom,cpubw {

		compatible = "qcom,cpubw";

		qcom,cpu-mem-ports = <1 512>;

		qcom,bw-tbl =

			<  1525 /*  100 MHz */ >,

			<  2288 /*  150 MHz */ >,

			<  4577 /*  300 MHz */ >,

			<  6103 /*  400 MHz */ >,

			<  7110 /*  466 MHz */ >;

	};



	devfreq-cpufreq {

		cpubw-cpufreq {

			target-dev = <&cpubw>;

			cpu-to-dev-map-0 =

				<  199200 1525 >,

				<  302400 1525 >,

				<  384000 1525 >,

				<  600000 2288 >,

				<  691200 4577 >,

				<  768000 4577 >,

				<  844800 6103 >,

				<  921600 6103 >,

				<  940800 7110 >;

			cpu-to-dev-map-4 =

				<  199200 1525 >,

				<  302400 1525 >,

				<  384000 2288 >,

				<  600000 4577 >,

				<  691200 6103 >,

				<  768000 6103 >,

				<  844800 7110 >,

				<  921600 7110 >;

		};

		cci-cpufreq {

			target-dev = <&cci_cache>;

			cpu-to-dev-map-0 =

				<  199200 150000 >,

				<  302400 200000 >,

				<  384000 249600 >,

				<  600000 300000 >,

				<  691200 384000 >,

				<  768000 384000 >,

				<  844800 499200 >,

				<  921600 600000 >,

				<  940800 600000 >;

			cpu-to-dev-map-4 =

				<  199200 150000 >,

				<  302400 200000 >,

				<  384000 249600 >,

				<  600000 300000 >,

				<  691200 384000 >,

				<  768000 499200 >,

				<  844800 600000 >,

				<  921600 600000 >;

		};

	};



	msm_cpufreq: qcom,msm-cpufreq {

		compatible = "qcom,msm-cpufreq";

		clock-names = "cpu0_clk", "cpu1_clk", "cpu2_clk",

				"cpu3_clk", "cpu4_clk", "cpu5_clk",
@@ -865,13 +938,17 @@ 
			 <&clock_cpu clk_a57_clk>,

			 <&clock_cpu clk_a57_clk>;



		qcom,cpufreq-table =

			<  249600 >,

			<  300000 >,

			<  422400 >,

			<  652800 >,

			<  729600 >,

			<  883200 >;

		qcom,governor-per-policy;



		qcom,cpufreq-table-0 =

			<  199200 >,

			<  302400 >,

			<  384000 >,

			<  600000 >,

			<  691200 >;



		qcom,cpufreq-table-4 =

			<  199200 >;

	};



	clock_cpu: qcom,cpu-clock-8994@f9015000 {