[PATCH 5/6] arm64: dts: allwinner: h616: Add CPU Operating Performance Points table

Martin Botka
2023-09-04T15:57:53Z

Add an Operating Performance Points table for the CPU cores to
enable Dynamic Voltage & Frequency Scaling on the H616.

Also add the needed cpu_speed_grade nvmem cell.

Signed-off-by: Martin Botka <martin.botka@somainline.org>
---
.../boot/dts/allwinner/sun50i-h616-cpu-opp.dtsi | 129 +++++++++++++++++++++
arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi | 4 +
2 files changed, 133 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-cpu-opp.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616-cpu-opp.dtsi
new file mode 100644
index 000000000000..4c7eaba511a9
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-cpu-opp.dtsi
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+// Copyright (C) 2023 Martin Botka <martin@somainline.org>
+
+/ {
+ cpu_opp_table: cpu-opp-table {
+ compatible = "allwinner,sun50i-h616-operating-points";
+ nvmem-cells = <&cpu_speed_grade>;
+ opp-shared;
+
+ opp-480000000 {
+ opp-hz = /bits/ 64 <480000000>;
+ opp-microvolt-speed0 = <900000>;
+ opp-microvolt-speed1 = <900000>;
+ opp-microvolt-speed2 = <900000>;
+ opp-microvolt-speed3 = <900000>;
+ opp-microvolt-speed4 = <900000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0x1f>;
+ };
+
+ opp-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt-speed1 = <900000>;
+ opp-microvolt-speed4 = <900000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0x12>;
+ };
+
+ opp-720000000 {
+ opp-hz = /bits/ 64 <720000000>;
+ opp-microvolt-speed0 = <900000>;
+ opp-microvolt-speed2 = <900000>;
+ opp-microvolt-speed3 = <900000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0xd>;
+ };
+
+ opp-792000000 {
+ opp-hz = /bits/ 64 <792000000>;
+ opp-microvolt-speed1 = <900000>;
+ opp-microvolt-speed4 = <940000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0x12>;
+ };
+
+ opp-936000000 {
+ opp-hz = /bits/ 64 <936000000>;
+ opp-microvolt-speed0 = <900000>;
+ opp-microvolt-speed2 = <900000>;
+ opp-microvolt-speed3 = <900000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0xd>;
+ };
+
+ opp-1008000000 {
+ opp-hz = /bits/ 64 <1008000000>;
+ opp-microvolt-speed0 = <950000>;
+ opp-microvolt-speed1 = <940000>;
+ opp-microvolt-speed2 = <950000>;
+ opp-microvolt-speed3 = <950000>;
+ opp-microvolt-speed4 = <1020000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0x1f>;
+ };
+
+ opp-1104000000 {
+ opp-hz = /bits/ 64 <1104000000>;
+ opp-microvolt-speed0 = <1000000>;
+ opp-microvolt-speed2 = <1000000>;
+ opp-microvolt-speed3 = <1000000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0xd>;
+ };
+
+ opp-1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt-speed0 = <1050000>;
+ opp-microvolt-speed1 = <1020000>;
+ opp-microvolt-speed2 = <1050000>;
+ opp-microvolt-speed3 = <1050000>;
+ opp-microvolt-speed4 = <1100000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0x1f>;
+ };
+
+ opp-1320000000 {
+ opp-hz = /bits/ 64 <1320000000>;
+ opp-microvolt-speed0 = <1100000>;
+ opp-microvolt-speed2 = <1100000>;
+ opp-microvolt-speed3 = <1100000>;
+ opp-microvolt-speed4 = <1100000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0x1d>;
+ };
+
+ opp-1416000000 {
+ opp-hz = /bits/ 64 <1416000000>;
+ opp-microvolt-speed0 = <1100000>;
+ opp-microvolt-speed2 = <1100000>;
+ opp-microvolt-speed3 = <1100000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0xd>;
+ };
+
+ opp-1512000000 {
+ opp-hz = /bits/ 64 <1512000000>;
+ opp-microvolt-speed1 = <1100000>;
+ opp-microvolt-speed3 = <1100000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-supported-hw = <0xa>;
+ };
+ };
+};
+
+&cpu0 {
+ operating-points-v2 = <&cpu_opp_table>;
+};
+
+&cpu1 {
+ operating-points-v2 = <&cpu_opp_table>;
+};
+
+&cpu2 {
+ operating-points-v2 = <&cpu_opp_table>;
+};
+
+&cpu3 {
+ operating-points-v2 = <&cpu_opp_table>;
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
index 063db9634e5f..78e79c591dba 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
@@ -143,6 +143,10 @@ sid: efuse@3006000 {
ths_calibration: thermal-sensor-calibration@14 {
reg = <0x14 0x8>;
};
+
+ cpu_speed_grade: cpu_speed_grade@0 {
+ reg = <0x0 2>;
+ };
};

watchdog: watchdog@30090a0 {

--
2.42.0