From mboxrd@z Thu Jan 1 00:00:00 1970 From: Howard Chen Subject: [RFC] ARM: dts: mt8173: Add psci-0.2 cpuidle support Date: Wed, 18 Mar 2015 14:00:32 +0800 Message-ID: <1426658432-29333-1-git-send-email-howard.chen@linaro.org> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Matthias Brugger Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Catalin Marinas , Will Deacon , Howard Chen , Eddie Huang , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com, Sascha Hauer List-Id: devicetree@vger.kernel.org add device tree for psci-0.2 on mt8173 platform add device tree for cupidle-arm64 on mt8173 platform Signed-off-by: Howard Chen --- arch/arm64/boot/dts/mediatek/mt8173.dtsi | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi index 8554ec3..96dff1e 100644 --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi @@ -48,6 +48,8 @@ device_type = "cpu"; compatible = "arm,cortex-a53"; reg = <0x000>; + enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>; }; cpu1: cpu@1 { @@ -55,6 +57,7 @@ compatible = "arm,cortex-a53"; reg = <0x001>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>; }; cpu2: cpu@100 { @@ -62,6 +65,7 @@ compatible = "arm,cortex-a57"; reg = <0x100>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>; }; cpu3: cpu@101 { @@ -69,15 +73,33 @@ compatible = "arm,cortex-a57"; reg = <0x101>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>; }; + + idle-states { + entry-method = "arm,psci-0.2"; + + CPU_SLEEP_0_0: cpu-sleep-0-0 { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x0010000>; + entry-latency-us = <600>; + exit-latency-us = <600>; + min-residency-us = <1200>; + }; + + CLUSTER_SLEEP_0: cluster-sleep-0 { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x1010000>; + entry-latency-us = <800>; + exit-latency-us = <1000>; + min-residency-us = <2000>; + wakeup-latency-us = <1000>; + }; }; psci { - compatible = "arm,psci"; + compatible = "arm,psci-0.2"; method = "smc"; - cpu_suspend = <0x84000001>; - cpu_off = <0x84000002>; - cpu_on = <0x84000003>; }; uart_clk: dummy26m { -- 1.9.1