MIPS: dts: loongson: Add LSGZ_1B_DEV board

Add a device tree for LSGZ_1B_DEV board.

Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile
index 88b87c94c545b395962d667d735529ef5c71f498..1130efa127684593b2053993ba41be6149a0a57f 100644 (file)
--- a/arch/mips/boot/dts/loongson/Makefile
+++ b/arch/mips/boot/dts/loongson/Makefile
@@ -7,3 +7,4 @@ dtb-$(CONFIG_MACH_LOONGSON64)   += loongson64g_4core_ls7a.dtb
 dtb-$(CONFIG_MACH_LOONGSON64)  += loongson64v_4core_virtio.dtb
 
 dtb-$(CONFIG_MACH_LOONGSON32)  += ls1b-demo.dtb
+dtb-$(CONFIG_MACH_LOONGSON32)  += lsgz_1b_dev.dtb

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 (file)
index 0000000..94ec151
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/lsgz_1b_dev.dts
@@ -0,0 +1,162 @@
+// 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,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 {
+               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>;
+               };
+       };
+};
+
+&xtal {
+       clock-frequency = <33000000>;
+};
+
+&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>;
+               };
+       };
+};
+
+&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";
+};
+
+&uart2 {
+       status = "okay";
+};
+
+&uart3 {
+       status = "okay";
+};
+
+&watchdog {
+       status = "okay";
+};