linux-kernel - [PATCH v5 3/7] arm64: dts: sophgo: Add initial SG2000 SoC device tree

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Message-ID: <20250316185640.3750873-4-alexander.sverdlin@gmail.com>
Date: Sun, 16 Mar 2025 19:56:33 +0100
From: Alexander Sverdlin <alexander.sverdlin@...il.com>
To: sophgo@...ts.linux.dev,
	soc@...ts.linux.dev
Cc: Alexander Sverdlin <alexander.sverdlin@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Jisheng Zhang <jszhang@...nel.org>,
	Haylen Chu <heylenay@...look.com>,
	Chao Wei <chao.wei@...hgo.com>,
	devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v5 3/7] arm64: dts: sophgo: Add initial SG2000 SoC device tree

Add initial device tree for the SG2000 SoC by SOPHGO (from ARM64 PoV).

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@...il.com>
---
Changelog:
v5:
- PSCI node and enable-method
v4:
v3:
v2:
- relocated "memory" node according to DT coding style;
- moved GIC node into "soc";
- referring "soc" by label;

 arch/arm64/boot/dts/sophgo/sg2000.dtsi | 81 ++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 arch/arm64/boot/dts/sophgo/sg2000.dtsi

diff --git a/arch/arm64/boot/dts/sophgo/sg2000.dtsi b/arch/arm64/boot/dts/sophgo/sg2000.dtsi
new file mode 100644
index 000000000000..7051007ec7ea
--- /dev/null
+++ b/arch/arm64/boot/dts/sophgo/sg2000.dtsi
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+#define SOC_PERIPHERAL_IRQ(nr)		GIC_SPI (nr)
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <riscv/sophgo/cv18xx.dtsi>
+#include <riscv/sophgo/cv181x.dtsi>
+
+/ {
+	compatible = "sophgo,sg2000";
+	interrupt-parent = <&gic>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			compatible = "arm,cortex-a53";
+			device_type = "cpu";
+			reg = <0>;
+			enable-method = "psci";
+			i-cache-size = <32768>;
+			d-cache-size = <32768>;
+			next-level-cache = <&l2>;
+		};
+
+		l2: l2-cache {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x20000>;
+		};
+	};
+
+	memory@...00000 {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>;	/* 512MiB */
+	};
+
+	pmu {
+		compatible = "arm,cortex-a53-pmu";
+		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	psci {
+		compatible = "arm,psci-0.2", "arm,psci";
+		method = "smc";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+		always-on;
+		clock-frequency = <25000000>;
+	};
+};
+
+&soc {
+	gic: interrupt-controller@...1000 {
+		compatible = "arm,cortex-a15-gic";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x01f01000 0x1000>,
+		      <0x01f02000 0x2000>;
+	};
+
+	pinctrl: pinctrl@...1000 {
+		compatible = "sophgo,sg2000-pinctrl";
+		reg = <0x03001000 0x1000>,
+		      <0x05027000 0x1000>;
+		reg-names = "sys", "rtc";
+	};
+};
+
+&clk {
+	compatible = "sophgo,sg2000-clk";
+};
-- 
2.48.1