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Message-Id: <20240222082523.1812-1-greena88@gmail.com>
Date: Thu, 22 Feb 2024 08:25:23 +0000
From: Adam Green <greena88@...il.com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Neil Armstrong <neil.armstrong@...aro.org>,
Kevin Hilman <khilman@...libre.com>,
Jerome Brunet <jbrunet@...libre.com>,
Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-amlogic@...ts.infradead.org,
linux-kernel@...r.kernel.org
Cc: greena88@...il.com
Subject: [PATCH] arm64: dts: meson-g12b-odroid-n2*: Add support for overclocking Hardkernel ODROID-N2 boards.
Hardkernel actively supports overclocking these boards in their own
documentation. (https://wiki.odroid.com/odroid-n2/hardware/overclocking)
This aligns the SoC opps with those in the board vendors bsp source.
Signed-off-by: Adam Green <greena88@...il.com>
---
.../dts/amlogic/meson-g12b-odroid-n2-plus.dts | 25 +++++++++++++++++++
.../boot/dts/amlogic/meson-g12b-odroid-n2.dts | 17 +++++++++++++
.../dts/amlogic/meson-g12b-odroid-n2l.dts | 25 +++++++++++++++++++
3 files changed, 67 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts
index ce1198ad34e4..1731d542a00c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts
@@ -15,6 +15,31 @@ / {
model = "Hardkernel ODROID-N2Plus";
};
+&cpu_opp_table_0 {
+ opp-1908000000 {
+ opp-hz = /bits/ 64 <1908000000>;
+ opp-microvolt = <1030000>;
+ };
+ opp-2016000000 {
+ opp-hz = /bits/ 64 <2016000000>;
+ opp-microvolt = <1040000>;
+ turbo-mode;
+ };
+};
+
+&cpub_opp_table_1 {
+ opp-2304000000 {
+ opp-hz = /bits/ 64 <2304000000>;
+ opp-microvolt = <1030000>;
+ turbo-mode;
+ };
+ opp-2400000000 {
+ opp-hz = /bits/ 64 <2400000000>;
+ opp-microvolt = <1040000>;
+ turbo-mode;
+ };
+};
+
&vddcpu_a {
regulator-min-microvolt = <680000>;
regulator-max-microvolt = <1040000>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
index a198a91259ec..0c71e8bc0124 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
@@ -13,3 +13,20 @@ / {
compatible = "hardkernel,odroid-n2", "amlogic,s922x", "amlogic,g12b";
model = "Hardkernel ODROID-N2";
};
+
+&cpu_opp_table_0 {
+ opp-1992000000 {
+ turbo-mode;
+ };
+};
+
+&cpub_opp_table_1 {
+ opp-1908000000 {
+ turbo-mode;
+ };
+ opp-2004000000 {
+ opp-hz = /bits/ 64 <2004000000>;
+ opp-microvolt = <1022000>;
+ turbo-mode;
+ };
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts
index e26f3e3258e1..b16a69d0cad6 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2l.dts
@@ -97,6 +97,31 @@ codec {
};
};
+&cpu_opp_table_0 {
+ opp-1908000000 {
+ opp-hz = /bits/ 64 <1908000000>;
+ opp-microvolt = <1030000>;
+ };
+ opp-2016000000 {
+ opp-hz = /bits/ 64 <2016000000>;
+ opp-microvolt = <1040000>;
+ turbo-mode;
+ };
+};
+
+&cpub_opp_table_1 {
+ opp-2304000000 {
+ opp-hz = /bits/ 64 <2304000000>;
+ opp-microvolt = <1030000>;
+ turbo-mode;
+ };
+ opp-2400000000 {
+ opp-hz = /bits/ 64 <2400000000>;
+ opp-microvolt = <1040000>;
+ turbo-mode;
+ };
+};
+
ð_phy {
status = "disabled";
};
--
2.34.1
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