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Commit 58fa29bf authored by Leo Yan's avatar Leo Yan Committed by Wei Xu
Browse files

arm64: dts: enable idle states for Hi6220 



Add cpu and cluster level's low power state for Hi6220.

Acked-by: default avatarSudeep Holla <sudeep.holla@arm.com>
Signed-off-by: default avatarLeo Yan <leo.yan@linaro.org>
Signed-off-by: default avatarWei Xu <xuwei5@hisilicon.com>
parent 9e927031

arch/arm64/boot/dts/hisilicon/hi6220.dtsi

+31 −0
Original line number Diff line number Diff line
@@ -53,11 +53,35 @@ 
			};

		};



		idle-states {

			entry-method = "psci";



			CPU_SLEEP: cpu-sleep {

				compatible = "arm,idle-state";

				local-timer-stop;

				arm,psci-suspend-param = <0x0010000>;

				entry-latency-us = <700>;

				exit-latency-us = <250>;

				min-residency-us = <1000>;

			};



			CLUSTER_SLEEP: cluster-sleep {

				compatible = "arm,idle-state";

				local-timer-stop;

				arm,psci-suspend-param = <0x1010000>;

				entry-latency-us = <1000>;

				exit-latency-us = <700>;

				min-residency-us = <2700>;

				wakeup-latency-us = <1500>;

			};

		};



		cpu0: cpu@0 {

			compatible = "arm,cortex-a53", "arm,armv8";

			device_type = "cpu";

			reg = <0x0 0x0>;

			enable-method = "psci";

			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;

		};



		cpu1: cpu@1 {
@@ -65,6 +89,7 @@ 
			device_type = "cpu";

			reg = <0x0 0x1>;

			enable-method = "psci";

			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;

		};



		cpu2: cpu@2 {
@@ -72,6 +97,7 @@ 
			device_type = "cpu";

			reg = <0x0 0x2>;

			enable-method = "psci";

			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;

		};



		cpu3: cpu@3 {
@@ -79,6 +105,7 @@ 
			device_type = "cpu";

			reg = <0x0 0x3>;

			enable-method = "psci";

			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;

		};



		cpu4: cpu@100 {
@@ -86,6 +113,7 @@ 
			device_type = "cpu";

			reg = <0x0 0x100>;

			enable-method = "psci";

			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;

		};



		cpu5: cpu@101 {
@@ -93,6 +121,7 @@ 
			device_type = "cpu";

			reg = <0x0 0x101>;

			enable-method = "psci";

			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;

		};



		cpu6: cpu@102 {
@@ -100,6 +129,7 @@ 
			device_type = "cpu";

			reg = <0x0 0x102>;

			enable-method = "psci";

			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;

		};



		cpu7: cpu@103 {
@@ -107,6 +137,7 @@ 
			device_type = "cpu";

			reg = <0x0 0x103>;

			enable-method = "psci";

			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;

		};

	};