[PATCH 2/9] arm64: dts: apple: t7000: Add cpufreq nodes
From: Nick Chan <hidden>
Date: 2024-12-22 17:53:33
Also in:
asahi, linux-devicetree, lkml
Subsystem:
arm/apple machine support, the rest · Maintainers:
Sven Peter, Janne Grunau, Linus Torvalds
Add cpufreq nodes for Apple A8 SoC. Signed-off-by: Nick Chan <redacted> --- arch/arm64/boot/dts/apple/t7000-6.dtsi | 4 ++ arch/arm64/boot/dts/apple/t7000-j42d.dts | 4 ++ arch/arm64/boot/dts/apple/t7000-mini4.dtsi | 4 ++ arch/arm64/boot/dts/apple/t7000.dtsi | 46 ++++++++++++++++++++++ 4 files changed, 58 insertions(+)
diff --git a/arch/arm64/boot/dts/apple/t7000-6.dtsi b/arch/arm64/boot/dts/apple/t7000-6.dtsi
index f60ea4a4a387..0d08e2589449 100644
--- a/arch/arm64/boot/dts/apple/t7000-6.dtsi
+++ b/arch/arm64/boot/dts/apple/t7000-6.dtsi@@ -48,3 +48,7 @@ switch-mute { }; }; }; + +&typhoon_opp06 { + status = "okay"; +};
diff --git a/arch/arm64/boot/dts/apple/t7000-j42d.dts b/arch/arm64/boot/dts/apple/t7000-j42d.dts
index 2231db6a739d..24fe5a99f3ab 100644
--- a/arch/arm64/boot/dts/apple/t7000-j42d.dts
+++ b/arch/arm64/boot/dts/apple/t7000-j42d.dts@@ -29,3 +29,7 @@ framebuffer0: framebuffer@0 { &serial6 { status = "okay"; }; + +&typhoon_opp06 { + status = "okay"; +};
diff --git a/arch/arm64/boot/dts/apple/t7000-mini4.dtsi b/arch/arm64/boot/dts/apple/t7000-mini4.dtsi
index c64ddc402fda..773c69449902 100644
--- a/arch/arm64/boot/dts/apple/t7000-mini4.dtsi
+++ b/arch/arm64/boot/dts/apple/t7000-mini4.dtsi@@ -49,3 +49,7 @@ switch-mute { }; }; }; + +&typhoon_opp06 { + status = "okay"; +};
diff --git a/arch/arm64/boot/dts/apple/t7000.dtsi b/arch/arm64/boot/dts/apple/t7000.dtsi
index a7cc29e84c84..4105cf70391b 100644
--- a/arch/arm64/boot/dts/apple/t7000.dtsi
+++ b/arch/arm64/boot/dts/apple/t7000.dtsi@@ -33,6 +33,8 @@ cpu0: cpu@0 { compatible = "apple,typhoon"; reg = <0x0 0x0>; cpu-release-addr = <0 0>; /* To be filled in by loader */ + performance-domains = <&cpufreq>; + operating-points-v2 = <&typhoon_opp>; enable-method = "spin-table"; device_type = "cpu"; };
@@ -41,11 +43,49 @@ cpu1: cpu@1 { compatible = "apple,typhoon"; reg = <0x0 0x1>; cpu-release-addr = <0 0>; /* To be filled in by loader */ + performance-domains = <&cpufreq>; + operating-points-v2 = <&typhoon_opp>; enable-method = "spin-table"; device_type = "cpu"; }; }; + typhoon_opp: opp-table { + compatible = "operating-points-v2"; + + opp01 { + opp-hz = /bits/ 64 <300000000>; + opp-level = <1>; + clock-latency-ns = <300>; + }; + opp02 { + opp-hz = /bits/ 64 <396000000>; + opp-level = <2>; + clock-latency-ns = <50000>; + }; + opp03 { + opp-hz = /bits/ 64 <600000000>; + opp-level = <3>; + clock-latency-ns = <29000>; + }; + opp04 { + opp-hz = /bits/ 64 <840000000>; + opp-level = <4>; + clock-latency-ns = <29000>; + }; + opp05 { + opp-hz = /bits/ 64 <1128000000>; + opp-level = <5>; + clock-latency-ns = <36000>; + }; + typhoon_opp06: opp06 { + opp-hz = /bits/ 64 <1392000000>; + opp-level = <6>; + clock-latency-ns = <42000>; + status = "disabled"; /* Not available on N102 */ + }; + }; + soc { compatible = "simple-bus"; #address-cells = <2>;
@@ -53,6 +93,12 @@ soc { nonposted-mmio; ranges; + cpufreq: performance-controller@202220000 { + compatible = "apple,t7000-cluster-cpufreq", "apple,s5l8960x-cluster-cpufreq"; + reg = <0x2 0x02220000 0 0x1000>; + #performance-domain-cells = <0>; + }; + serial0: serial@20a0c0000 { compatible = "apple,s5l-uart"; reg = <0x2 0x0a0c0000 0x0 0x4000>;
--
2.47.1