arm64: dts: ls1043a: add cpu idle support

Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
index 4d15e111cf12..beb3c3500ed6 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
@@ -81,6 +81,7 @@
                         clocks = <&clockgen 1 0>;
                         next-level-cache = <&l2>;
                         #cooling-cells = <2>;
+                        cpu-idle-states = <&CPU_PH20>;
                 };
 
                 cpu1: cpu@1 {
@@ -89,6 +90,7 @@
                         reg = <0x1>;
                         clocks = <&clockgen 1 0>;
                         next-level-cache = <&l2>;
+                        cpu-idle-states = <&CPU_PH20>;
                 };
 
                 cpu2: cpu@2 {
@@ -97,6 +99,7 @@
                         reg = <0x2>;
                         clocks = <&clockgen 1 0>;
                         next-level-cache = <&l2>;
+                        cpu-idle-states = <&CPU_PH20>;
                 };
 
                 cpu3: cpu@3 {
@@ -105,6 +108,7 @@
                         reg = <0x3>;
                         clocks = <&clockgen 1 0>;
                         next-level-cache = <&l2>;
+                        cpu-idle-states = <&CPU_PH20>;
                 };
 
                 l2: l2-cache {
@@ -112,6 +116,23 @@
                 };
         };
 
+        idle-states {
+                /*
+                 * PSCI node is not added default, U-boot will add missing
+                 * parts if it determines to use PSCI.
+                 */
+                entry-method = "arm,psci";
+
+                CPU_PH20: cpu-ph20 {
+                        compatible = "arm,idle-state";
+                        idle-state-name = "PH20";
+                        arm,psci-suspend-param = <0x00010000>;
+                        entry-latency-us = <1000>;
+                        exit-latency-us = <1000>;
+                        min-residency-us = <3000>;
+                };
+        };
+
         memory@80000000 {
                 device_type = "memory";
                 reg = <0x0 0x80000000 0 0x80000000>;