Add cpufreq nodes for Apple A9X SoC.
Signed-off-by: Nick Chan <towinchenmi@xxxxxxxxx>
---
arch/arm64/boot/dts/apple/s8001.dtsi | 59 ++++++++++++++++++++++++++++
1 file changed, 59 insertions(+)
diff --git a/arch/arm64/boot/dts/apple/s8001.dtsi b/arch/arm64/boot/dts/apple/s8001.dtsi
index 23ee3238844d..7f7cb8afd3d3 100644
--- a/arch/arm64/boot/dts/apple/s8001.dtsi
+++ b/arch/arm64/boot/dts/apple/s8001.dtsi
@@ -32,6 +32,8 @@ cpu0: cpu@0 {
compatible = "apple,twister";
reg = <0x0 0x0>;
cpu-release-addr = <0 0>; /* To be filled in by loader */
+ operating-points-v2 = <&twister_opp>;
+ performance-domains = <&cpufreq>;
enable-method = "spin-table";
device_type = "cpu";
};
@@ -40,11 +42,62 @@ cpu1: cpu@1 {
compatible = "apple,twister";
reg = <0x0 0x1>;
cpu-release-addr = <0 0>; /* To be filled in by loader */
+ operating-points-v2 = <&twister_opp>;
+ performance-domains = <&cpufreq>;
enable-method = "spin-table";
device_type = "cpu";
};
};
+ twister_opp: opp-table {
+ compatible = "operating-points-v2";
+
+ opp01 {
+ opp-hz = /bits/ 64 <300000000>;
+ opp-level = <1>;
+ clock-latency-ns = <800>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <396000000>;
+ opp-level = <2>;
+ clock-latency-ns = <53000>;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <792000000>;
+ opp-level = <3>;
+ clock-latency-ns = <18000>;
+ };
+ opp04 {
+ opp-hz = /bits/ 64 <1080000000>;
+ opp-level = <4>;
+ clock-latency-ns = <21000>;
+ };
+ opp05 {
+ opp-hz = /bits/ 64 <1440000000>;
+ opp-level = <5>;
+ clock-latency-ns = <25000>;
+ };
+ opp06 {
+ opp-hz = /bits/ 64 <1800000000>;
+ opp-level = <6>;
+ clock-latency-ns = <33000>;
+ };
+ opp07 {
+ opp-hz = /bits/ 64 <2160000000>;
+ opp-level = <7>;
+ clock-latency-ns = <45000>;
+ };
+#if 0
+ /* Not available until CPU deep sleep is implemented */
+ opp08 {
+ opp-hz = /bits/ 64 <2160000000>;
+ opp-level = <8>;
+ clock-latency-ns = <45000>;
+ turbo-mode;
+ };
+#endif
+ };
+
soc {
compatible = "simple-bus";
#address-cells = <2>;
@@ -52,6 +105,12 @@ soc {
nonposted-mmio;
ranges;
+ cpufreq: performance-controller@202220000 {
+ compatible = "apple,s8000-cluster-cpufreq", "apple,t8103-cluster-cpufreq", "apple,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
