linux-kernel - [PATCH 3/3] arm64: dts: meson: add support for the ODROID-N2+

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Date:   Sun, 19 Jul 2020 14:10:34 +0000
From:   Christian Hewitt <christianshewitt@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...libre.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Christian Hewitt <christianshewitt@...il.com>,
        Dongjin Kim <tobetter@...dkernel.com>
Subject: [PATCH 3/3] arm64: dts: meson: add support for the ODROID-N2+

HardKernel ODROID-N2+ uses an Amlogic S922X rev. C chip capable of higher
clock speeds than the original ODROID-N2. Hardkernel supports the big cpu
cluster at 2.4GHz and the little cpu cluster at 2.0GHz. Opp points and
regulator changess are from the HardKernel Linux kernel sources.

Suggested-by: Dongjin Kim <tobetter@...dkernel.com>
Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
---
 arch/arm64/boot/dts/amlogic/Makefile          |  1 +
 .../dts/amlogic/meson-g12b-odroid-n2-plus.dts | 53 +++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts

diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index 5cac4d1d487d..6dc508b80133 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -8,6 +8,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gtking-pro.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-a311d-khadas-vim3.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-s922x-khadas-vim3.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2-plus.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-g12b-ugoos-am6.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-kii-pro.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nanopi-k2.dtb
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
new file mode 100644
index 000000000000..99e96be509f8
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@...libre.com>
+ */
+
+/dts-v1/;
+
+#include "meson-g12b-odroid-n2.dtsi"
+
+/ {
+	compatible = "hardkernel,odroid-n2-plus", "amlogic,s922x", "amlogic,g12b";
+	model = "Hardkernel ODROID-N2+";
+
+	vddcpu_a: regulator-vddcpu-a {
+		regulator-min-microvolt = <680000>;
+		regulator-max-microvolt = <1040000>;
+
+		pwms = <&pwm_ab 0 1500 0>;
+	};
+
+	vddcpu_b: regulator-vddcpu-b {
+		regulator-min-microvolt = <680000>;
+		regulator-max-microvolt = <1040000>;
+
+		pwms = <&pwm_AO_cd 1 1500 0>;
+	};
+
+	cpu_opp_table_0: opp-table-0 {
+		opp-1908000000 {
+			opp-hz = /bits/ 64 <1908000000>;
+			opp-microvolt = <1030000>;
+		};
+
+		opp-2016000000 {
+			opp-hz = /bits/ 64 <2016000000>;
+			opp-microvolt = <1040000>;
+		};
+	};
+
+	cpub_opp_table_1: opp-table-1 {
+		opp-2304000000 {
+			opp-hz = /bits/ 64 <2304000000>;
+			opp-microvolt = <1030000>;
+		};
+
+		opp-2400000000 {
+			opp-hz = /bits/ 64 <2400000000>;
+			opp-microvolt = <1040000>;
+		};
+	};
+};
+
-- 
2.17.1