* [RFC] ARM: dts: mt8173: Add psci-0.2 cpuidle support
@ 2015-03-18 6:00 Howard Chen
[not found] ` <1426658432-29333-1-git-send-email-howard.chen-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Howard Chen @ 2015-03-18 6:00 UTC (permalink / raw)
To: Matthias Brugger
Cc: Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Catalin Marinas, Will Deacon, Howard Chen, Eddie Huang,
devicetree, linux-arm-kernel, linux-kernel, linux-mediatek,
srv_heupstream, Sascha Hauer
add device tree for psci-0.2 on mt8173 platform
add device tree for cupidle-arm64 on mt8173 platform
Signed-off-by: Howard Chen <howard.chen@linaro.org>
---
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
^ permalink raw reply related [flat|nested] 2+ messages in thread[parent not found: <1426658432-29333-1-git-send-email-howard.chen-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>]
* Re: [RFC] ARM: dts: mt8173: Add psci-0.2 cpuidle support [not found] ` <1426658432-29333-1-git-send-email-howard.chen-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> @ 2015-03-18 12:16 ` Mark Rutland 0 siblings, 0 replies; 2+ messages in thread From: Mark Rutland @ 2015-03-18 12:16 UTC (permalink / raw) To: Howard Chen Cc: Matthias Brugger, Rob Herring, Pawel Moll, Ian Campbell, Kumar Gala, Catalin Marinas, Will Deacon, Eddie Huang, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, srv_heupstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, Sascha Hauer Hi, On Wed, Mar 18, 2015 at 06:00:32AM +0000, Howard Chen wrote: > add device tree for psci-0.2 on mt8173 platform Are all the other mandatory PSCI 0.2 components implemented and working? e.g. is MIGRATE_INFO_TYPE present, do SYSTEM_{OFF,RESET} work? If they're not present and working, we can't describe this as having PSCI 0.2. Also, what FW does this require the system to have? Mark. > add device tree for cupidle-arm64 on mt8173 platform > > Signed-off-by: Howard Chen <howard.chen-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> > --- > 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 > > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 2+ messages in thread
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2015-03-18 6:00 [RFC] ARM: dts: mt8173: Add psci-0.2 cpuidle support Howard Chen
[not found] ` <1426658432-29333-1-git-send-email-howard.chen-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-03-18 12:16 ` Mark Rutland
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