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| author | Tho Vu <tho.vu.wh@renesas.com> | 2022-06-08 17:40:21 +0200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2022-06-17 09:46:19 +0200 |
| commit | 9bc7cd07aadedaa388636fe15966bea5e3f91ea7 (patch) | |
| tree | 3640fe0dd50e246345cc9169c2582d7f5adb5b38 /arch/arm64/boot/dts/renesas | |
| parent | 2dcb78d2266c0a8790cc92af3cd08dadee3d7c27 (diff) | |
| download | linux-9bc7cd07aadedaa388636fe15966bea5e3f91ea7.tar.bz2 | |
arm64: dts: renesas: r8a779f0: Add CPUIdle support
Support CPUIdle for ARM Cortex-A55 on R-Car S4-8.
Signed-off-by: Tho Vu <tho.vu.wh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/5310792ce4c06515a5373ff44ceb9b925f007489.1654701480.git.geert+renesas@glider.be
Diffstat (limited to 'arch/arm64/boot/dts/renesas')
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r8a779f0.dtsi | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/r8a779f0.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0.dtsi index 42347817a675..8e612eb35b30 100644 --- a/arch/arm64/boot/dts/renesas/r8a779f0.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a779f0.dtsi @@ -63,6 +63,7 @@ power-domains = <&sysc R8A779F0_PD_A1E0D0C0>; next-level-cache = <&L3_CA55_0>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; a55_1: cpu@100 { @@ -72,6 +73,7 @@ power-domains = <&sysc R8A779F0_PD_A1E0D0C1>; next-level-cache = <&L3_CA55_0>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; a55_2: cpu@10000 { @@ -81,6 +83,7 @@ power-domains = <&sysc R8A779F0_PD_A1E0D1C0>; next-level-cache = <&L3_CA55_1>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; a55_3: cpu@10100 { @@ -90,6 +93,7 @@ power-domains = <&sysc R8A779F0_PD_A1E0D1C1>; next-level-cache = <&L3_CA55_1>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; a55_4: cpu@20000 { @@ -99,6 +103,7 @@ power-domains = <&sysc R8A779F0_PD_A1E1D0C0>; next-level-cache = <&L3_CA55_2>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; a55_5: cpu@20100 { @@ -108,6 +113,7 @@ power-domains = <&sysc R8A779F0_PD_A1E1D0C1>; next-level-cache = <&L3_CA55_2>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; a55_6: cpu@30000 { @@ -117,6 +123,7 @@ power-domains = <&sysc R8A779F0_PD_A1E1D1C0>; next-level-cache = <&L3_CA55_3>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; a55_7: cpu@30100 { @@ -126,6 +133,7 @@ power-domains = <&sysc R8A779F0_PD_A1E1D1C1>; next-level-cache = <&L3_CA55_3>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; L3_CA55_0: cache-controller-0 { @@ -155,6 +163,19 @@ cache-unified; cache-level = <3>; }; + + idle-states { + entry-method = "psci"; + + CPU_SLEEP_0: cpu-sleep-0 { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x0010000>; + local-timer-stop; + entry-latency-us = <400>; + exit-latency-us = <500>; + min-residency-us = <4000>; + }; + }; }; extal_clk: extal { |