linux-kernel - [PATCH 4/7] arm64: dts: allwinner: h6: Add CPU Operating Performance Points table

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Message-Id: <20200405104913.22806-5-peron.clem@gmail.com>
Date:   Sun,  5 Apr 2020 12:49:10 +0200
From:   Clément Péron <peron.clem@...il.com>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        Ondrej Jirman <megous@...ous.com>,
        Clément Péron <peron.clem@...il.com>
Subject: [PATCH 4/7] arm64: dts: allwinner: h6: Add CPU Operating Performance Points table

From: Ondrej Jirman <megous@...ous.com>

Add an Operating Performance Points table for the CPU cores to
enable Dynamic Voltage & Frequency Scaling on the H6.

Signed-off-by: Ondrej Jirman <megous@...ous.com>
Signed-off-by: Clément Péron <peron.clem@...il.com>
---
 .../boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi | 103 ++++++++++++++++++
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi  |   4 +
 2 files changed, 107 insertions(+)
 create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
new file mode 100644
index 000000000000..b480c33f426b
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+// Copyright (C) 2020 Ondrej Jirman <megous@...ous.com>
+// Copyright (C) 2020 Clément Péron <peron.clem@...il.com>
+
+/ {
+	cpu0_opp_table: opp_table0 {
+		compatible = "allwinner,sun50i-h6-operating-points";
+		nvmem-cells = <&speedbin_efuse>;
+		opp-shared;
+
+		opp@...000000 {
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-hz = /bits/ 64 <480000000>;
+
+			opp-microvolt-speed0 = <880000>;
+			opp-microvolt-speed1 = <820000>;
+			opp-microvolt-speed2 = <820000>;
+		};
+
+		opp@...000000 {
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-hz = /bits/ 64 <720000000>;
+
+			opp-microvolt-speed0 = <880000>;
+			opp-microvolt-speed1 = <820000>;
+			opp-microvolt-speed2 = <820000>;
+		};
+
+		opp@...000000 {
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-hz = /bits/ 64 <816000000>;
+
+			opp-microvolt-speed0 = <880000>;
+			opp-microvolt-speed1 = <820000>;
+			opp-microvolt-speed2 = <820000>;
+		};
+
+		opp@...000000 {
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-hz = /bits/ 64 <888000000>;
+
+			opp-microvolt-speed0 = <880000>;
+			opp-microvolt-speed1 = <820000>;
+			opp-microvolt-speed2 = <820000>;
+		};
+
+		opp@...0000000 {
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-hz = /bits/ 64 <1080000000>;
+
+			opp-microvolt-speed0 = <940000>;
+			opp-microvolt-speed1 = <880000>;
+			opp-microvolt-speed2 = <880000>;
+		};
+
+		opp@...0000000 {
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-hz = /bits/ 64 <1320000000>;
+
+			opp-microvolt-speed0 = <1000000>;
+			opp-microvolt-speed1 = <940000>;
+			opp-microvolt-speed2 = <940000>;
+		};
+
+		opp@...8000000 {
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-hz = /bits/ 64 <1488000000>;
+
+			opp-microvolt-speed0 = <1060000>;
+			opp-microvolt-speed1 = <1000000>;
+			opp-microvolt-speed2 = <1000000>;
+		};
+
+		opp@...0000000 {
+			clock-latency-ns = <244144>; /* 8 32k periods */
+			opp-hz = /bits/ 64 <1800000000>;
+
+			opp-microvolt-speed0 = <1160000>;
+			opp-microvolt-speed1 = <1100000>;
+			opp-microvolt-speed2 = <1100000>;
+		};
+	};
+};
+
+&cpu0 {
+	operating-points-v2 = <&cpu0_opp_table>;
+	#cooling-cells = <2>;
+};
+
+&cpu1 {
+	operating-points-v2 = <&cpu0_opp_table>;
+	#cooling-cells = <2>;
+};
+
+&cpu2 {
+	operating-points-v2 = <&cpu0_opp_table>;
+	#cooling-cells = <2>;
+};
+
+&cpu3 {
+	operating-points-v2 = <&cpu0_opp_table>;
+	#cooling-cells = <2>;
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index c3e4f09f60ce..a9304fec245c 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -253,6 +253,10 @@
 			#address-cells = <1>;
 			#size-cells = <1>;
 
+			speedbin_efuse: speed@1c {
+				reg = <0x1c 0x4>;
+			};
+
 			ths_calibration: thermal-sensor-calibration@14 {
 				reg = <0x14 0x8>;
 			};
-- 
2.20.1