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Message-Id: <20250709-loongson1-arch-v2-4-bcff6e518c09@gmail.com>
Date: Wed, 09 Jul 2025 19:05:55 +0800
From: Keguang Zhang via B4 Relay <devnull+keguang.zhang.gmail.com@...nel.org>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Jiaxun Yang <jiaxun.yang@...goat.com>,
Keguang Zhang <keguang.zhang@...il.com>
Cc: linux-mips@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 4/9] MIPS: dts: loongson: Add LSGZ_1B_DEV board
From: Keguang Zhang <keguang.zhang@...il.com>
Add a device tree for LSGZ_1B_DEV board.
Signed-off-by: Keguang Zhang <keguang.zhang@...il.com>
---
arch/mips/boot/dts/loongson/Makefile | 1 +
arch/mips/boot/dts/loongson/lsgz_1b_dev.dts | 145 ++++++++++++++++++++++++++++
2 files changed, 146 insertions(+)
diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile
index 2facf251fb6a..1123d08dbfbe 100644
--- a/arch/mips/boot/dts/loongson/Makefile
+++ b/arch/mips/boot/dts/loongson/Makefile
@@ -10,4 +10,5 @@ ifneq ($(CONFIG_BUILTIN_DTB_NAME),)
dtb-y := $(addsuffix .dtb, $(CONFIG_BUILTIN_DTB_NAME))
else
dtb-$(CONFIG_MACH_LOONGSON32) += ls1b-demo.dtb
+dtb-$(CONFIG_MACH_LOONGSON32) += lsgz_1b_dev.dtb
endif
diff --git a/arch/mips/boot/dts/loongson/lsgz_1b_dev.dts b/arch/mips/boot/dts/loongson/lsgz_1b_dev.dts
new file mode 100644
index 000000000000..c4f9a4499fad
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/lsgz_1b_dev.dts
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023-2025 Keguang Zhang <keguang.zhang@...il.com>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+#include "loongson1b.dtsi"
+
+/ {
+ compatible = "loongson,lsgz-1b-dev", "loongson,ls1b";
+ model = "LSGZ_1B_DEV Board";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x4000000>;
+ };
+
+ aliases {
+ ethernet0 = &gmac0;
+ ethernet1 = &gmac1;
+ gpio0 = &gpio0;
+ gpio1 = &gpio1;
+ serial0 = &uart2;
+ serial1 = &uart3;
+ };
+
+ chosen {
+ bootargs = "mtdparts=ls1x-nand:16m(kernel),-(rootfs)";
+ stdout-path = "serial0:115200n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led9 {
+ label = "led9";
+ gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "heartbeat";
+ };
+
+ led6 {
+ label = "led6";
+ gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "nand-disk";
+ };
+ };
+
+ codec: audio-codec {
+ compatible = "realtek,alc203";
+ #sound-dai-cells = <0>;
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "ls1b-alc655";
+ simple-audio-card,format = "ac97";
+ simple-audio-card,widgets =
+ "Speaker", "Line Out Jack",
+ "Line", "Line In Jack",
+ "Microphone", "Microphone Jack";
+ simple-audio-card,routing =
+ "Line Out Jack", "TX",
+ "RX", "Line In Jack",
+ "RX", "Microphone Jack";
+
+ simple-audio-card,cpu {
+ sound-dai = <&ac97>;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&codec>;
+ };
+ };
+};
+
+&gmac0 {
+ phy-handle = <&phy0>;
+ phy-mode = "mii";
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "snps,dwmac-mdio";
+
+ phy0: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
+
+&gmac1 {
+ phy-handle = <&phy1>;
+ phy-mode = "mii";
+ status = "okay";
+
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy1: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
+
+&xtal {
+ clock-frequency = <33000000>;
+};
+
+&ac97 {
+ status = "okay";
+};
+
+&ehci {
+ status = "okay";
+};
+
+&ohci {
+ status = "okay";
+};
+
+&nand {
+ status = "okay";
+};
+
+&rtc {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart3 {
+ status = "okay";
+};
+
+&watchdog {
+ status = "okay";
+};
--
2.43.0
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