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From: John Crispin <john@phrozen.org>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>
Cc: Christian Marangi <ansuelsmth@gmail.com>,
	devicetree@vger.kernel.org, Felix Fietkau <nbd@nbd.name>,
	lei.dong@airoha.com, Linqi.zhang@airoha.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
	Rajeev.kumar@airoha.com, upstream@airoha.com,
	Weifeng.xu@airoha.com, zhengping.zhang@airoha.com
Subject: [PATCH 2/3] arm64: dts: airoha: add AN7589 SoC dtsi
Date: Tue, 10 Nov 2026 18:21:42 +0100	[thread overview]
Message-ID: <20261110172143.296304-3-john@phrozen.org> (raw)
In-Reply-To: <20261110172143.296304-1-john@phrozen.org>

Add the device tree for the Airoha AN7589 SoC. It describes the four
Cortex-A73 cores, which the firmware brings up over PSCI, the GICv3, the
architected timer and the console UART.

The UART runs from a fixed 1.8432 MHz clock, so the console works
before the SCU clock controller probes. The remaining blocks follow later.

Signed-off-by: John Crispin <john@phrozen.org>
---
 arch/arm64/boot/dts/airoha/an7589.dtsi | 134 +++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 arch/arm64/boot/dts/airoha/an7589.dtsi

diff --git a/arch/arm64/boot/dts/airoha/an7589.dtsi b/arch/arm64/boot/dts/airoha/an7589.dtsi
new file mode 100644
index 000000000000..c0153a00c88a
--- /dev/null
+++ b/arch/arm64/boot/dts/airoha/an7589.dtsi
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		atf@80000000 {
+			no-map;
+			reg = <0x0 0x80000000 0x0 0x200000>;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+
+				core1 {
+					cpu = <&cpu1>;
+				};
+
+				core2 {
+					cpu = <&cpu2>;
+				};
+
+				core3 {
+					cpu = <&cpu3>;
+				};
+			};
+		};
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a73";
+			reg = <0x0>;
+			enable-method = "psci";
+			next-level-cache = <&l2>;
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a73";
+			reg = <0x1>;
+			enable-method = "psci";
+			next-level-cache = <&l2>;
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a73";
+			reg = <0x2>;
+			enable-method = "psci";
+			next-level-cache = <&l2>;
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a73";
+			reg = <0x3>;
+			enable-method = "psci";
+			next-level-cache = <&l2>;
+		};
+
+		l2: l2-cache {
+			compatible = "cache";
+			cache-size = <0x80000>;
+			cache-line-size = <64>;
+			cache-level = <2>;
+			cache-unified;
+		};
+	};
+
+	clk1843200: clock-1843200 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <1843200>;
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		gic: interrupt-controller@c000000 {
+			compatible = "arm,gic-v3";
+			interrupt-controller;
+			#interrupt-cells = <3>;
+			reg = <0x0 0x0c000000 0x0 0x40000>,
+			      <0x0 0x0c080000 0x0 0x200000>,
+			      <0x0 0x0c400000 0x0 0x2000>,
+			      <0x0 0x0c410000 0x0 0x1000>,
+			      <0x0 0x0c420000 0x0 0x1000>;
+			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
+		};
+
+		uart1: serial@1fbf0000 {
+			compatible = "ns16550";
+			reg = <0x0 0x1fbf0000 0x0 0x30>;
+			reg-io-width = <4>;
+			reg-shift = <2>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk1843200>;
+		};
+	};
+};
-- 
2.34.1


  parent reply	other threads:[~2026-11-10 17:21 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-10 17:21 [PATCH 0/3] arm64: dts: airoha: add AN7589 support John Crispin
2026-11-10 17:21 ` [PATCH 1/3] dt-bindings: arm: airoha: add AN7589 John Crispin
2026-11-10 18:28   ` Conor Dooley
2026-11-10 17:21 ` John Crispin [this message]
2026-11-10 17:21 ` [PATCH 3/3] arm64: dts: airoha: add AN7589 evaluation board John Crispin

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