1 files changed, 125 insertions, 0 deletions
diff --git a/arch/mips/boot/dts/loongson/ls1b-demo.dts b/arch/mips/boot/dts/loongson/ls1b-demo.dts
new file mode 100644
index 000000000000..13f8b102e100
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/ls1b-demo.dts
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023-2025 Keguang Zhang <keguang.zhang@gmail.com>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+#include "loongson1b.dtsi"
+
+/ {
+	compatible = "loongson,ls1b-demo", "loongson,ls1b";
+	model = "LS1B-DEMO Board";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x10000000>;
+	};
+
+	aliases {
+		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:38400n8";
+	};
+
+	codec: audio-codec {
+		compatible = "realtek,alc203";
+		#sound-dai-cells = <0>;
+	};
+
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "ls1b-alc203";
+		simple-audio-card,format = "ac97";
+		simple-audio-card,widgets =
+			"Speaker", "Line Out Jack",
+			"Headphone", "Headphone Jack",
+			"Microphone", "Microphone Jack";
+		simple-audio-card,routing =
+			"Line Out Jack", "TX",
+			"Headphone Jack", "TX",
+			"RX", "Microphone Jack";
+
+		simple-audio-card,cpu {
+			sound-dai = <&ac97>;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&codec>;
+		};
+	};
+};
+
+&xtal {
+	clock-frequency = <33000000>;
+};
+
+&gmac0 {
+	phy-handle = <&phy0>;
+	phy-mode = "rgmii-id";
+	status = "okay";
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy0: ethernet-phy@0 {
+			reg = <0x0>;
+		};
+	};
+};
+
+&nand {
+	status = "okay";
+
+	nand@0 {
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "kernel";
+				reg = <0x0 0x1000000>;
+			};
+
+			partition@1000000 {
+				label = "rootfs";
+				reg = <0x1000000 0x7000000>;
+			};
+		};
+	};
+};
+
+&ac97 {
+	status = "okay";
+};
+
+&ehci {
+	status = "okay";
+};
+
+&ohci {
+	status = "okay";
+};
+
+&rtc {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&watchdog {
+	status = "okay";
+};