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arm64: dts: imx8ulp: add cpuidle node

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Add cpuidle node and enable cpuidle for dual cores. The HW mode in
Arm Trusted Firmware is SoC Application Power Domain Sleep mode.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Peng Fan 2023-07-24 15:58:27 +08:00 committed by Shawn Guo
parent a9624b4e7e
commit db2c35aa68
1 changed files with 15 additions and 0 deletions
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15
arch/arm64/boot/dts/freescale/imx8ulp.dtsi
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@ -40,6 +40,7 @@ A35_0: cpu@0 {
reg = <0x0 0x0>;
enable-method = "psci";
next-level-cache = <&A35_L2>;
cpu-idle-states = <&cpu_sleep>;
};
A35_1: cpu@1 {
@ -48,6 +49,7 @@ A35_1: cpu@1 {
reg = <0x0 0x1>;
enable-method = "psci";
next-level-cache = <&A35_L2>;
cpu-idle-states = <&cpu_sleep>;
};
A35_L2: l2-cache0 {
@ -55,6 +57,19 @@ A35_L2: l2-cache0 {
cache-level = <2>;
cache-unified;
};
idle-states {
entry-method = "psci";
cpu_sleep: cpu-sleep {
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x0>;
local-timer-stop;
entry-latency-us = <1000>;
exit-latency-us = <700>;
min-residency-us = <2700>;
};
};
};
gic: interrupt-controller@2d400000 {