linux-kernel - [PATCH 09/11] ARM: dts: mediatek: add basic support for MT6572 SoC

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Message-Id: <20250620-mt6572-v1-9-e2d47820f042@proton.me>
Date: Fri, 20 Jun 2025 18:40:48 +0300
From: Max Shevchenko via B4 Relay <devnull+wctrl.proton.me@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Jiri Slaby <jirislaby@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Thomas Gleixner <tglx@...utronix.de>, 
 Daniel Lezcano <daniel.lezcano@...aro.org>, 
 Wim Van Sebroeck <wim@...ux-watchdog.org>, 
 Guenter Roeck <linux@...ck-us.net>, Sean Wang <sean.wang@...iatek.com>, 
 Russell King <linux@...linux.org.uk>
Cc: linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, linux-watchdog@...r.kernel.org, 
 Max Shevchenko <wctrl@...ton.me>
Subject: [PATCH 09/11] ARM: dts: mediatek: add basic support for MT6572 SoC

From: Max Shevchenko <wctrl@...ton.me>

Add basic support for the MediaTek MT6572 SoC.

Signed-off-by: Max Shevchenko <wctrl@...ton.me>
---
 arch/arm/boot/dts/mediatek/mt6572.dtsi | 105 +++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)

diff --git a/arch/arm/boot/dts/mediatek/mt6572.dtsi b/arch/arm/boot/dts/mediatek/mt6572.dtsi
new file mode 100644
index 0000000000000000000000000000000000000000..dd12231ca745be7455e99391abd2d708f2f1a8a9
--- /dev/null
+++ b/arch/arm/boot/dts/mediatek/mt6572.dtsi
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Max Shevchenko <wctrl@...ton.me>
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "mediatek,mt6572";
+	interrupt-parent = <&sysirq>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		enable-method = "mediatek,mt6589-smp";
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x0>;
+		};
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x1>;
+		};
+	};
+
+	system_clk: dummy13m {
+		compatible = "fixed-clock";
+		clock-frequency = <13000000>;
+		#clock-cells = <0>;
+	};
+
+	rtc_clk: dummy32k {
+		compatible = "fixed-clock";
+		clock-frequency = <32000>;
+		#clock-cells = <0>;
+	};
+
+	uart_clk: dummy26m {
+		compatible = "fixed-clock";
+		clock-frequency = <26000000>;
+		#clock-cells = <0>;
+	};
+
+	watchdog: watchdog@...07000 {
+		compatible = "mediatek,mt6572-wdt",
+			     "mediatek,mt6589-wdt";
+		reg = <0x10007000 0x100>;
+		interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_LOW>;
+		timeout-sec = <15>;
+		#reset-cells = <1>;
+	};
+
+	timer: timer@...08000 {
+		compatible = "mediatek,mt6572-timer",
+			     "mediatek,mt6577-timer";
+		reg = <0x10008000 0x80>;
+		interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&system_clk>, <&rtc_clk>;
+		clock-names = "system-clk", "rtc-clk";
+	};
+
+	sysirq: interrupt-controller@...00100 {
+		compatible = "mediatek,mt6572-sysirq",
+			     "mediatek,mt6577-sysirq";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&gic>;
+		reg = <0x10200100 0x1c>;
+	};
+
+	gic: interrupt-controller@...11000 {
+		compatible = "arm,cortex-a7-gic";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&gic>;
+		reg = <0x10211000 0x1000>,
+		      <0x10212000 0x2000>,
+		      <0x10214000 0x2000>,
+		      <0x10216000 0x2000>;
+	};
+
+	uart0: serial@...05000 {
+		compatible = "mediatek,mt6572-uart",
+			     "mediatek,mt6577-uart";
+		reg = <0x11005000 0x400>;
+		interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&uart_clk>;
+		status = "disabled";
+	};
+
+	uart1: serial@...06000 {
+		compatible = "mediatek,mt6572-uart",
+			     "mediatek,mt6577-uart";
+		reg = <0x11006000 0x400>;
+		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&uart_clk>;
+		status = "disabled";
+	};
+};

-- 
2.50.0