Resguardo inicial

linux-7.2.3/arch/mips/boot/dts/loongson/Makefile

@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
+
+ifneq ($(CONFIG_BUILTIN_DTB_NAME),)
+dtb-y	:= $(addsuffix .dtb, $(CONFIG_BUILTIN_DTB_NAME))
+else
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64_2core_2k1000.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_4core_ls7a.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_4core_rs780e.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64c_8core_rs780e.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64g_4core_ls7a.dtb
+dtb-$(CONFIG_MACH_LOONGSON64)	+= loongson64v_4core_virtio.dtb
+
+dtb-$(CONFIG_MACH_LOONGSON32)	+= cq-t300b.dtb
+dtb-$(CONFIG_MACH_LOONGSON32)	+= ls1b-demo.dtb
+dtb-$(CONFIG_MACH_LOONGSON32)	+= lsgz_1b_dev.dtb
+dtb-$(CONFIG_MACH_LOONGSON32)	+= smartloong-1c.dtb
+endif

linux-7.2.3/arch/mips/boot/dts/loongson/cq-t300b.dts

@@ -0,0 +1,110 @@
+// 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 "loongson1c.dtsi"
+
+/ {
+	compatible = "loongson,cq-t300b", "loongson,ls1c";
+	model = "CQ-T300B Board";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x8000000>;
+	};
+
+	aliases {
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+		gpio2 = &gpio2;
+		gpio3 = &gpio3;
+		serial0 = &uart2;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led0 {
+			label = "led0";
+			gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		led1 {
+			label = "led1";
+			gpios = <&gpio1 21 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "nand-disk";
+		};
+	};
+};
+
+&xtal {
+	clock-frequency = <24000000>;
+};
+
+&emac {
+	phy-handle = <&phy0>;
+	phy-mode = "rmii";
+	status = "okay";
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy0: ethernet-phy@13 {
+			reg = <0x13>;
+		};
+	};
+};
+
+&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 0x3f000000>;
+			};
+		};
+	};
+};
+
+&ehci {
+	status = "okay";
+};
+
+&ohci {
+	status = "okay";
+};
+
+&rtc {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&watchdog {
+	status = "okay";
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson1.dtsi

@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023-2025 Keguang Zhang <keguang.zhang@gmail.com>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/clock/loongson,ls1x-clk.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	xtal: clock {
+		compatible = "fixed-clock";
+		clock-output-names = "xtal";
+		#clock-cells = <0>;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			reg = <0>;
+			device_type = "cpu";
+			clocks = <&clkc LS1X_CLKID_CPU>;
+			#clock-cells = <1>;
+		};
+	};
+
+	cpu_intc: interrupt-controller {
+		compatible = "mti,cpu-interrupt-controller";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		#address-cells = <0>;
+	};
+
+	soc: bus@1fd00000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x1fd00000 0x130000>;
+
+		intc0: interrupt-controller@1040 {
+			compatible = "loongson,ls1x-intc";
+			reg = <0x1040 0x18>;
+			interrupt-controller;
+			interrupt-parent = <&cpu_intc>;
+			interrupts = <2>;
+			#interrupt-cells = <2>;
+		};
+
+		intc1: interrupt-controller@1058 {
+			compatible = "loongson,ls1x-intc";
+			reg = <0x1058 0x18>;
+			interrupt-controller;
+			interrupt-parent = <&cpu_intc>;
+			interrupts = <3>;
+			#interrupt-cells = <2>;
+		};
+
+		intc2: interrupt-controller@1070 {
+			compatible = "loongson,ls1x-intc";
+			reg = <0x1070 0x18>;
+			interrupt-controller;
+			interrupt-parent = <&cpu_intc>;
+			interrupts = <4>;
+			#interrupt-cells = <2>;
+		};
+
+		intc3: interrupt-controller@1088 {
+			compatible = "loongson,ls1x-intc";
+			reg = <0x1088 0x18>;
+			interrupt-controller;
+			interrupt-parent = <&cpu_intc>;
+			interrupts = <5>;
+			#interrupt-cells = <2>;
+		};
+
+		gpio0: gpio@10c0 {
+			compatible = "loongson,ls1x-gpio";
+			reg = <0x10c0 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+		};
+
+		gpio1: gpio@10c4 {
+			compatible = "loongson,ls1x-gpio";
+			reg = <0x10c4 0x4>;
+			gpio-controller;
+			#gpio-cells = <2>;
+		};
+	};
+
+	apb: bus@1fe40000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x1fe40000 0xc0000>;
+
+		uart0: serial@0 {
+			compatible = "ns16550a";
+			reg = <0x0 0x8>;
+			clocks = <&clkc LS1X_CLKID_APB>;
+			interrupt-parent = <&intc0>;
+			interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		uart1: serial@4000 {
+			compatible = "ns16550a";
+			reg = <0x4000 0x8>;
+			clocks = <&clkc LS1X_CLKID_APB>;
+			interrupt-parent = <&intc0>;
+			status = "disabled";
+		};
+
+		uart2: serial@8000 {
+			compatible = "ns16550a";
+			reg = <0x8000 0x8>;
+			clocks = <&clkc LS1X_CLKID_APB>;
+			interrupt-parent = <&intc0>;
+			status = "disabled";
+		};
+
+		uart3: serial@c000 {
+			compatible = "ns16550a";
+			reg = <0xc000 0x8>;
+			clocks = <&clkc LS1X_CLKID_APB>;
+			interrupt-parent = <&intc0>;
+			status = "disabled";
+		};
+	};
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson1b.dtsi

@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023-2025 Keguang Zhang <keguang.zhang@gmail.com>
+ */
+
+/dts-v1/;
+#include "loongson1.dtsi"
+
+/ {
+	cpu_opp_table: opp-table {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-44000000 {
+			opp-hz = /bits/ 64 <44000000>;
+		};
+		opp-47142000 {
+			opp-hz = /bits/ 64 <47142000>;
+		};
+		opp-50769000 {
+			opp-hz = /bits/ 64 <50769000>;
+		};
+		opp-55000000 {
+			opp-hz = /bits/ 64 <55000000>;
+		};
+		opp-60000000 {
+			opp-hz = /bits/ 64 <60000000>;
+		};
+		opp-66000000 {
+			opp-hz = /bits/ 64 <66000000>;
+		};
+		opp-73333000 {
+			opp-hz = /bits/ 64 <73333000>;
+		};
+		opp-82500000 {
+			opp-hz = /bits/ 64 <82500000>;
+		};
+		opp-94285000 {
+			opp-hz = /bits/ 64 <94285000>;
+		};
+		opp-110000000 {
+			opp-hz = /bits/ 64 <110000000>;
+		};
+		opp-132000000 {
+			opp-hz = /bits/ 64 <132000000>;
+		};
+		opp-165000000 {
+			opp-hz = /bits/ 64 <165000000>;
+		};
+		opp-220000000 {
+			opp-hz = /bits/ 64 <220000000>;
+		};
+	};
+
+	clkc: clock-controller@1fe78030 {
+		compatible = "loongson,ls1b-clk";
+		reg = <0x1fe78030 0x8>;
+		clocks = <&xtal>;
+		#clock-cells = <1>;
+	};
+};
+
+&soc {
+	syscon: syscon@420 {
+		compatible = "loongson,ls1b-syscon", "syscon";
+		reg = <0x420 0x8>;
+	};
+
+	dma: dma-controller@1160 {
+		compatible = "loongson,ls1b-apbdma";
+		reg = <0x1160 0x4>;
+		interrupt-parent = <&intc0>;
+		interrupts = <13 IRQ_TYPE_EDGE_RISING>,
+			     <14 IRQ_TYPE_EDGE_RISING>,
+			     <15 IRQ_TYPE_EDGE_RISING>;
+		interrupt-names = "ch0", "ch1", "ch2";
+		#dma-cells = <1>;
+	};
+
+	ehci: usb@100000 {
+		compatible = "generic-ehci";
+		reg = <0x100000 0x100>;
+		interrupt-parent = <&intc1>;
+		interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	ohci: usb@108000 {
+		compatible = "generic-ohci";
+		reg = <0x108000 0x100>;
+		interrupt-parent = <&intc1>;
+		interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	gmac0: ethernet@110000 {
+		compatible = "loongson,ls1b-gmac", "snps,dwmac-3.50a";
+		reg = <0x110000 0x10000>;
+		clocks = <&clkc LS1X_CLKID_AHB>;
+		clock-names = "stmmaceth";
+		interrupt-parent = <&intc1>;
+		interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "macirq";
+		loongson,ls1-syscon = <&syscon>;
+		snps,pbl = <1>;
+		status = "disabled";
+	};
+
+	gmac1: ethernet@120000 {
+		compatible = "loongson,ls1b-gmac", "snps,dwmac-3.50a";
+		reg = <0x120000 0x10000>;
+		clocks = <&clkc LS1X_CLKID_AHB>;
+		clock-names = "stmmaceth";
+		interrupt-parent = <&intc1>;
+		interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "macirq";
+		loongson,ls1-syscon = <&syscon>;
+		snps,pbl = <1>;
+		status = "disabled";
+	};
+};
+
+&apb {
+	clocksource: timer@1c030 {
+		compatible = "loongson,ls1b-pwmtimer";
+		reg = <0x1c030 0x10>;
+		clocks = <&clkc LS1X_CLKID_APB>;
+		interrupt-parent = <&intc0>;
+		interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	watchdog: watchdog@1c060 {
+		compatible = "loongson,ls1b-wdt";
+		reg = <0x1c060 0xc>;
+		clocks = <&clkc LS1X_CLKID_APB>;
+		status = "disabled";
+	};
+
+	rtc: rtc@24000 {
+		compatible = "loongson,ls1b-rtc";
+		reg = <0x24000 0x78>;
+		interrupt-parent = <&intc0>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	ac97: audio-controller@34000 {
+		compatible = "loongson,ls1b-ac97";
+		reg = <0x34000 0x60>, <0x32420 0x4>, <0x34c4c 0x4>;
+		reg-names = "ac97", "audio-tx", "audio-rx";
+		dmas = <&dma 1>, <&dma 2>;
+		dma-names = "tx", "rx";
+		#sound-dai-cells = <0>;
+		status = "disabled";
+	};
+
+	nand: nand-controller@38000 {
+		compatible = "loongson,ls1b-nand-controller";
+		reg = <0x38000 0x24>, <0x38040 0x4>;
+		reg-names = "nand", "nand-dma";
+		dmas = <&dma 0>;
+		dma-names = "rxtx";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+
+		nand@0 {
+			reg = <0>;
+			label = "ls1x-nand";
+			nand-use-soft-ecc-engine;
+			nand-ecc-algo = "hamming";
+		};
+	};
+};
+
+&cpu0 {
+	operating-points-v2 = <&cpu_opp_table>;
+};
+
+&gpio0 {
+	ngpios = <31>;
+};
+
+&gpio1 {
+	ngpios = <30>;
+};
+
+&uart1 {
+	interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&uart2 {
+	interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&uart3 {
+	interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson1c.dtsi

@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023-2025 Keguang Zhang <keguang.zhang@gmail.com>
+ */
+
+/dts-v1/;
+#include "loongson1.dtsi"
+
+/ {
+	clkc: clock-controller@1fe78030 {
+		compatible = "loongson,ls1c-clk";
+		reg = <0x1fe78030 0x8>;
+		clocks = <&xtal>;
+		#clock-cells = <1>;
+	};
+};
+
+&soc {
+	syscon: syscon@420 {
+		compatible = "loongson,ls1c-syscon", "syscon";
+		reg = <0x420 0x8>;
+	};
+
+	intc4: interrupt-controller@10a0 {
+		compatible = "loongson,ls1x-intc";
+		reg = <0x10a0 0x18>;
+		interrupt-controller;
+		interrupt-parent = <&cpu_intc>;
+		interrupts = <6>;
+		#interrupt-cells = <2>;
+	};
+
+	gpio2: gpio@10c8 {
+		compatible = "loongson,ls1x-gpio";
+		reg = <0x10c8 0x4>;
+		gpio-controller;
+		ngpios = <32>;
+		#gpio-cells = <2>;
+	};
+
+	gpio3: gpio@10cc {
+		compatible = "loongson,ls1x-gpio";
+		reg = <0x10cc 0x4>;
+		gpio-controller;
+		ngpios = <32>;
+		#gpio-cells = <2>;
+	};
+
+	dma: dma-controller@1160 {
+		compatible = "loongson,ls1c-apbdma", "loongson,ls1b-apbdma";
+		reg = <0x1160 0x4>;
+		interrupt-parent = <&intc0>;
+		interrupts = <13 IRQ_TYPE_EDGE_RISING>,
+			     <14 IRQ_TYPE_EDGE_RISING>,
+			     <15 IRQ_TYPE_EDGE_RISING>;
+		interrupt-names = "ch0", "ch1", "ch2";
+		#dma-cells = <1>;
+	};
+
+	emac: ethernet@110000 {
+		compatible = "loongson,ls1c-emac", "snps,dwmac-3.50a";
+		reg = <0x110000 0x10000>;
+		clocks = <&clkc LS1X_CLKID_AHB>;
+		clock-names = "stmmaceth";
+		interrupt-parent = <&intc1>;
+		interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "macirq";
+		loongson,ls1-syscon = <&syscon>;
+		snps,pbl = <1>;
+		status = "disabled";
+	};
+
+	ehci: usb@120000 {
+		compatible = "generic-ehci";
+		reg = <0x120000 0x100>;
+		interrupt-parent = <&intc1>;
+		interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	ohci: usb@128000 {
+		compatible = "generic-ohci";
+		reg = <0x128000 0x100>;
+		interrupt-parent = <&intc1>;
+		interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+};
+
+&apb {
+	watchdog: watchdog@1c060 {
+		compatible = "loongson,ls1c-wdt";
+		reg = <0x1c060 0xc>;
+		clocks = <&clkc LS1X_CLKID_APB>;
+		status = "disabled";
+	};
+
+	rtc: rtc@24000 {
+		compatible = "loongson,ls1c-rtc";
+		reg = <0x24000 0x78>;
+		status = "disabled";
+	};
+
+	nand: nand-controller@38000 {
+		compatible = "loongson,ls1c-nand-controller";
+		reg = <0x38000 0x24>, <0x38040 0x4>;
+		reg-names = "nand", "nand-dma";
+		dmas = <&dma 0>;
+		dma-names = "rxtx";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+
+		nand@0 {
+			reg = <0>;
+			label = "ls1x-nand";
+			nand-use-soft-ecc-engine;
+			nand-ecc-algo = "hamming";
+		};
+	};
+};
+
+&gpio0 {
+	ngpios = <32>;
+};
+
+&gpio1 {
+	ngpios = <32>;
+};
+
+&uart1 {
+	interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&uart2 {
+	interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&uart3 {
+	interrupts = <29 IRQ_TYPE_LEVEL_HIGH>;
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi

@@ -0,0 +1,324 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "loongson,loongson2k1000";
+
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "loongson,gs264";
+			reg = <0x0>;
+			#clock-cells = <1>;
+			clocks = <&cpu_clk>;
+		};
+	};
+
+	cpu_clk: cpu_clk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <800000000>;
+	};
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	package0: bus@10000000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0 0x10000000 0 0x10000000 0 0x10000000 /* ioports */
+			0 0x40000000 0 0x40000000 0 0x40000000
+			0xfe 0x00000000 0xfe 0x00000000 0 0x40000000>;
+
+		isa@18000000 {
+			compatible = "isa";
+			#size-cells = <1>;
+			#address-cells = <2>;
+			ranges = <1 0x0 0x0 0x18000000 0x4000>;
+		};
+
+		pm: reset-controller@1fe07000 {
+			compatible = "loongson,ls2k-pm";
+			reg = <0 0x1fe07000 0 0x422>;
+		};
+
+		liointc0: interrupt-controller@1fe11400 {
+			compatible = "loongson,liointc-2.0";
+			reg = <0 0x1fe11400 0 0x40>,
+				<0 0x1fe11040 0 0x8>,
+				<0 0x1fe11140 0 0x8>;
+			reg-names = "main", "isr0", "isr1";
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <2>;
+			interrupt-names = "int0";
+
+			loongson,parent_int_map = <0xffffffff>, /* int0 */
+						<0x00000000>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+		};
+
+		liointc1: interrupt-controller@1fe11440 {
+			compatible = "loongson,liointc-2.0";
+			reg = <0 0x1fe11440 0 0x40>,
+				<0 0x1fe11048 0 0x8>,
+				<0 0x1fe11148 0 0x8>;
+			reg-names = "main", "isr0", "isr1";
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <3>;
+			interrupt-names = "int1";
+
+			loongson,parent_int_map = <0x00000000>, /* int0 */
+						<0xffffffff>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+		};
+
+		rtc0: rtc@1fe07800 {
+			compatible = "loongson,ls2k1000-rtc";
+			reg = <0 0x1fe07800 0 0x78>;
+			interrupt-parent = <&liointc1>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
+		uart0: serial@1fe00000 {
+			compatible = "ns16550a";
+			reg = <0 0x1fe00000 0 0x8>;
+			clock-frequency = <125000000>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		pci@1a000000 {
+			compatible = "loongson,ls2k-pci";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			reg = <0 0x1a000000 0 0x02000000>,
+				<0xfe 0x00000000 0 0x20000000>;
+
+			ranges = <0x01000000 0x0 0x00000000 0x0 0x18000000  0x0 0x00010000>,
+				 <0x02000000 0x0 0x40000000 0x0 0x40000000  0x0 0x40000000>;
+
+			gmac@3,0 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass0c0320",
+						   "pciclass0c03";
+
+				reg = <0x1800 0x0 0x0 0x0 0x0>;
+				interrupts = <12 IRQ_TYPE_LEVEL_HIGH>,
+					     <13 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&liointc0>;
+				phy-mode = "rgmii-id";
+				phy-handle = <&phy1>;
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy0: ethernet-phy@0 {
+						reg = <0>;
+					};
+				};
+			};
+
+			gmac@3,1 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass0c0320",
+						   "pciclass0c03",
+						   "loongson, pci-gmac";
+
+				reg = <0x1900 0x0 0x0 0x0 0x0>;
+				interrupts = <14 IRQ_TYPE_LEVEL_HIGH>,
+					     <15 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&liointc0>;
+				phy-mode = "rgmii-id";
+				phy-handle = <&phy1>;
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy1: ethernet-phy@1 {
+						reg = <0>;
+					};
+				};
+			};
+
+			ehci@4,1 {
+				compatible = "pci0014,7a14.0",
+						   "pci0014,7a14",
+						   "pciclass0c0320",
+						   "pciclass0c03";
+
+				reg = <0x2100 0x0 0x0 0x0 0x0>;
+				interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&liointc1>;
+			};
+
+			ohci@4,2 {
+				compatible = "pci0014,7a24.0",
+						   "pci0014,7a24",
+						   "pciclass0c0310",
+						   "pciclass0c03";
+
+				reg = <0x2200 0x0 0x0 0x0 0x0>;
+				interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&liointc1>;
+			};
+
+			sata@8,0 {
+				compatible = "pci0014,7a08.0",
+						   "pci0014,7a08",
+						   "pciclass010601",
+						   "pciclass0106";
+
+				reg = <0x4000 0x0 0x0 0x0 0x0>;
+				interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&liointc0>;
+			};
+
+			pcie@9,0 {
+				compatible = "pci0014,7a19.0",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x4800 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 0 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+				external-facing;
+			};
+
+			pcie@a,0 {
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x5000 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 1 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+				external-facing;
+			};
+
+			pcie@b,0 {
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x5800 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 2 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+				external-facing;
+			};
+
+			pcie@c,0 {
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x6000 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 3 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+				external-facing;
+			};
+
+			pcie@d,0 {
+				compatible = "pci0014,7a19.0",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x6800 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 4 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+				external-facing;
+			};
+
+			pcie@e,0 {
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x7000 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&liointc1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &liointc1 5 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+				external-facing;
+			};
+
+		};
+	};
+};
+

linux-7.2.3/arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts

@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64-2k1000.dtsi"
+
+/ {
+	compatible = "loongson,loongson64-2core-2k1000";
+};
+

linux-7.2.3/arch/mips/boot/dts/loongson/loongson64c-package.dtsi

@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	package0: bus@1fe00000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <0 0x1fe00000 0 0x1fe00000 0x100000
+			0 0x3ff00000 0 0x3ff00000 0x100000
+			/* 3A HT Config Space */
+			0xefd 0xfb000000 0xefd 0xfb000000 0x10000000
+			/* 3B HT Config Space */
+			0x1efd 0xfb000000 0x1efd 0xfb000000 0x10000000>;
+
+		liointc: interrupt-controller@3ff01400 {
+			compatible = "loongson,liointc-1.0";
+			reg = <0 0x3ff01400 0x64>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <2>, <3>;
+			interrupt-names = "int0", "int1";
+
+			loongson,parent_int_map = <0xf0ffffff>, /* int0 */
+						<0x0f000000>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+
+		};
+
+		cpu_uart0: serial@1fe001e0 {
+			compatible = "ns16550a";
+			reg = <0 0x1fe001e0 0x8>;
+			clock-frequency = <33000000>;
+			interrupt-parent = <&liointc>;
+			interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		cpu_uart1: serial@1fe001e8 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x1fe001e8 0x8>;
+			clock-frequency = <33000000>;
+			interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&liointc>;
+			no-loopback-test;
+		};
+	};
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson64c_4core_ls7a.dts

@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64c-package.dtsi"
+#include "ls7a-pch.dtsi"
+
+/ {
+	compatible = "loongson,loongson64c-4core-ls7a";
+};
+
+&package0 {
+	htvec: interrupt-controller@efdfb000080 {
+		compatible = "loongson,htvec-1.0";
+		reg = <0xefd 0xfb000080 0x40>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&liointc>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+			     <25 IRQ_TYPE_LEVEL_HIGH>,
+			     <26 IRQ_TYPE_LEVEL_HIGH>,
+			     <27 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
+
+&pch {
+	msi: msi-controller@2ff00000 {
+		compatible = "loongson,pch-msi-1.0";
+		reg = <0 0x2ff00000 0 0x8>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		msi-controller;
+		loongson,msi-base-vec = <64>;
+		loongson,msi-num-vecs = <64>;
+		interrupt-parent = <&htvec>;
+	};
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson64c_4core_rs780e.dts

@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64c-package.dtsi"
+#include "rs780e-pch.dtsi"
+
+/ {
+	compatible = "loongson,loongson64c-4core-rs780e";
+};
+
+&package0 {
+	htpic: interrupt-controller@efdfb000080 {
+		compatible = "loongson,htpic-1.0";
+		reg = <0xefd 0xfb000080 0x40>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&liointc>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+				<25 IRQ_TYPE_LEVEL_HIGH>,
+				<26 IRQ_TYPE_LEVEL_HIGH>,
+				<27 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson64c_8core_rs780e.dts

@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64c-package.dtsi"
+#include "rs780e-pch.dtsi"
+
+/ {
+	compatible = "loongson,loongson64c-8core-rs780e";
+};
+
+&package0 {
+	htpic: interrupt-controller@1efdfb000080 {
+		compatible = "loongson,htpic-1.0";
+		reg = <0x1efd 0xfb000080 0x40>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&liointc>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+				<25 IRQ_TYPE_LEVEL_HIGH>,
+				<26 IRQ_TYPE_LEVEL_HIGH>,
+				<27 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson64g-package.dtsi

@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	package0: bus@1fe00000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <0 0x1fe00000 0 0x1fe00000 0x100000
+			0 0x3ff00000 0 0x3ff00000 0x100000
+			0xefd 0xfb000000 0xefd 0xfb000000 0x10000000>;
+
+		liointc: interrupt-controller@3ff01400 {
+			compatible = "loongson,liointc-1.0";
+			reg = <0 0x3ff01400 0x64>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <2>, <3>;
+			interrupt-names = "int0", "int1";
+
+			loongson,parent_int_map = <0x00ffffff>, /* int0 */
+						<0xff000000>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+
+		};
+
+		cpu_uart0: serial@1fe00100 {
+			compatible = "loongson,ls3a4000-uart", "loongson,ls2k1500-uart", "ns16550a";
+			reg = <0 0x1fe00100 0x10>;
+			clock-frequency = <100000000>;
+			interrupt-parent = <&liointc>;
+			interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		cpu_uart1: serial@1fe00110 {
+			status = "disabled";
+			compatible = "loongson,ls3a4000-uart", "loongson,ls2k1500-uart", "ns16550a";
+			reg = <0 0x1fe00110 0x10>;
+			clock-frequency = <100000000>;
+			interrupts = <15 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&liointc>;
+			no-loopback-test;
+		};
+	};
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson64g_4core_ls7a.dts

@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64g-package.dtsi"
+#include "ls7a-pch.dtsi"
+
+/ {
+	compatible = "loongson,loongson64g-4core-ls7a";
+};
+
+&package0 {
+	htvec: interrupt-controller@efdfb000080 {
+		compatible = "loongson,htvec-1.0";
+		reg = <0xefd 0xfb000080 0x40>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&liointc>;
+		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>,
+			     <25 IRQ_TYPE_LEVEL_HIGH>,
+			     <26 IRQ_TYPE_LEVEL_HIGH>,
+			     <27 IRQ_TYPE_LEVEL_HIGH>,
+			     <28 IRQ_TYPE_LEVEL_HIGH>,
+			     <29 IRQ_TYPE_LEVEL_HIGH>,
+			     <30 IRQ_TYPE_LEVEL_HIGH>,
+			     <31 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
+
+&pch {
+	msi: msi-controller@2ff00000 {
+		compatible = "loongson,pch-msi-1.0";
+		reg = <0 0x2ff00000 0 0x8>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		msi-controller;
+		loongson,msi-base-vec = <64>;
+		loongson,msi-num-vecs = <192>;
+		interrupt-parent = <&htvec>;
+	};
+};

linux-7.2.3/arch/mips/boot/dts/loongson/loongson64v_4core_virtio.dts

@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/dts-v1/;
+/ {
+	compatible = "loongson,loongson64v-4core-virtio";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	package0: bus@1fe00000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <0 0x1fe00000 0 0x1fe00000 0x100000
+			0 0x3ff00000 0 0x3ff00000 0x100000
+			0xefd 0xfb000000 0xefd 0xfb000000 0x10000000>;
+
+		liointc: interrupt-controller@3ff01400 {
+			compatible = "loongson,liointc-1.0";
+			reg = <0 0x3ff01400 0x64>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <2>, <3>;
+			interrupt-names = "int0", "int1";
+
+			loongson,parent_int_map = <0x00000001>, /* int0 */
+						<0xfffffffe>, /* int1 */
+						<0x00000000>, /* int2 */
+						<0x00000000>; /* int3 */
+
+		};
+
+		cpu_uart0: serial@1fe001e0 {
+			compatible = "ns16550a";
+			reg = <0 0x1fe001e0 0x8>;
+			clock-frequency = <33000000>;
+			interrupt-parent = <&liointc>;
+			interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+	};
+
+	bus@10000000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0 0x10000000 0 0x10000000 0 0x10000000 /* PIO & CONF & APB */
+				0 0x40000000 0 0x40000000 0 0x40000000>; /* PCI MEM */
+
+		rtc0: rtc@10081000 {
+			compatible = "google,goldfish-rtc";
+			reg = <0 0x10081000 0 0x1000>;
+			interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&liointc>;
+		};
+
+		pci@1a000000 {
+			compatible = "pci-host-ecam-generic";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+
+			bus-range = <0x0 0x1f>;
+			reg = <0 0x1a000000 0 0x02000000>;
+
+			ranges = <0x01000000 0x0 0x00004000 0x0 0x18004000 0x0 0x0000c000>,
+				 <0x02000000 0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>;
+
+			interrupt-map = <
+				0x0000 0x0 0x0  0x1  &liointc  0x2 IRQ_TYPE_LEVEL_HIGH
+				0x0800 0x0 0x0  0x1  &liointc  0x3 IRQ_TYPE_LEVEL_HIGH
+				0x1000 0x0 0x0  0x1  &liointc  0x4 IRQ_TYPE_LEVEL_HIGH
+				0x1800 0x0 0x0  0x1  &liointc  0x5 IRQ_TYPE_LEVEL_HIGH
+				>;
+
+			interrupt-map-mask = <0x1800 0x0 0x0  0x7>;
+		};
+
+		isa@18000000 {
+			compatible = "isa";
+			#address-cells = <2>;
+			#size-cells = <1>;
+			ranges = <1 0 0 0x18000000 0x4000>;
+		};
+	};
+
+	hypervisor {
+		compatible = "linux,kvm";
+	};
+};

linux-7.2.3/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";
+};

linux-7.2.3/arch/mips/boot/dts/loongson/ls7a-pch.dtsi

@@ -0,0 +1,483 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	pch: bus@10000000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0 0x10000000 0 0x10000000 0 0x10000000 /* PIO & CONF & APB */
+				0 0x20000000 0 0x20000000 0 0x10000000
+				0 0x40000000 0 0x40000000 0 0x40000000 /* PCI MEM */
+				0xe00 0x00000000 0xe00 0x00000000 0x100 0x0000000>;
+
+		pic: interrupt-controller@10000000 {
+			compatible = "loongson,pch-pic-1.0";
+			reg = <0 0x10000000 0 0x400>;
+			interrupt-controller;
+			interrupt-parent = <&htvec>;
+			loongson,pic-base-vec = <0>;
+			#interrupt-cells = <2>;
+		};
+
+		lpc: interrupt-controller@10002000 {
+			compatible = "loongson,ls7a-lpc";
+			reg = <0 0x10002000 0 0x1000>;
+			interrupt-controller;
+			interrupt-parent = <&pic>;
+			interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
+			#interrupt-cells = <2>;
+		};
+
+		ls7a_uart0: serial@10080000 {
+			compatible = "ns16550a";
+			reg = <0 0x10080000 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		ls7a_uart1: serial@10080100 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x10080100 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		ls7a_uart2: serial@10080200 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x10080200 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		ls7a_uart3: serial@10080300 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x10080300 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		rtc0: rtc@100d0100 {
+			compatible = "loongson,ls7a-rtc";
+			reg = <0 0x100d0100 0 0x78>;
+			interrupt-parent = <&pic>;
+			interrupts = <52 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
+		pci@1a000000 {
+			compatible = "loongson,ls7a-pci";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			msi-parent = <&msi>;
+
+			reg = <0 0x1a000000 0 0x02000000>,
+				<0xefe 0x00000000 0 0x20000000>;
+
+			ranges = <0x01000000 0x0 0x00020000 0x0 0x18020000 0x0 0x00020000>,
+				 <0x02000000 0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>;
+
+			ohci@4,0 {
+				compatible = "pci0014,7a24.0",
+						   "pci0014,7a24",
+						   "pciclass0c0310",
+						   "pciclass0c03";
+
+				reg = <0x2000 0x0 0x0 0x0 0x0>;
+				interrupts = <49 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			ehci@4,1 {
+				compatible = "pci0014,7a14.0",
+						   "pci0014,7a14",
+						   "pciclass0c0320",
+						   "pciclass0c03";
+
+				reg = <0x2100 0x0 0x0 0x0 0x0>;
+				interrupts = <48 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			ohci@5,0 {
+				compatible = "pci0014,7a24.0",
+						   "pci0014,7a24",
+						   "pciclass0c0310",
+						   "pciclass0c03";
+
+				reg = <0x2800 0x0 0x0 0x0 0x0>;
+				interrupts = <51 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			ehci@5,1 {
+				compatible = "pci0014,7a14.0",
+						   "pci0014,7a14",
+						   "pciclass0c0320",
+						   "pciclass0c03";
+
+				reg = <0x2900 0x0 0x0 0x0 0x0>;
+				interrupts = <50 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			sata@8,0 {
+				compatible = "pci0014,7a08.0",
+						   "pci0014,7a08",
+						   "pciclass010601",
+						   "pciclass0106";
+
+				reg = <0x4000 0x0 0x0 0x0 0x0>;
+				interrupts = <16 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			sata@8,1 {
+				compatible = "pci0014,7a08.0",
+						   "pci0014,7a08",
+						   "pciclass010601",
+						   "pciclass0106";
+
+				reg = <0x4100 0x0 0x0 0x0 0x0>;
+				interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			sata@8,2 {
+				compatible = "pci0014,7a08.0",
+						   "pci0014,7a08",
+						   "pciclass010601",
+						   "pciclass0106";
+
+				reg = <0x4200 0x0 0x0 0x0 0x0>;
+				interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			gpu@6,0 {
+				compatible = "pci0014,7a15.0",
+						   "pci0014,7a15",
+						   "pciclass030200",
+						   "pciclass0302";
+
+				reg = <0x3000 0x0 0x0 0x0 0x0>;
+				interrupts = <29 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			dc@6,1 {
+				compatible = "pci0014,7a06.0",
+						   "pci0014,7a06",
+						   "pciclass030000",
+						   "pciclass0300";
+
+				reg = <0x3100 0x0 0x0 0x0 0x0>;
+				interrupts = <28 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			hda@7,0 {
+				compatible = "pci0014,7a07.0",
+						   "pci0014,7a07",
+						   "pciclass040300",
+						   "pciclass0403";
+
+				reg = <0x3800 0x0 0x0 0x0 0x0>;
+				interrupts = <58 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+			};
+
+			gmac@3,0 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass020000",
+						   "pciclass0200";
+
+				reg = <0x1800 0x0 0x0 0x0 0x0>;
+				interrupts = <12 IRQ_TYPE_LEVEL_HIGH>,
+					     <13 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&pic>;
+				phy-mode = "rgmii-id";
+				phy-handle = <&phy0>;
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy0: ethernet-phy@0 {
+						reg = <0>;
+					};
+				};
+			};
+
+			gmac@3,1 {
+				compatible = "pci0014,7a03.0",
+						   "pci0014,7a03",
+						   "pciclass020000",
+						   "pciclass0200",
+						   "loongson, pci-gmac";
+
+				reg = <0x1900 0x0 0x0 0x0 0x0>;
+				interrupts = <14 IRQ_TYPE_LEVEL_HIGH>,
+					     <15 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "macirq", "eth_lpi";
+				interrupt-parent = <&pic>;
+				phy-mode = "rgmii-id";
+				phy-handle = <&phy1>;
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					compatible = "snps,dwmac-mdio";
+					phy1: ethernet-phy@1 {
+						reg = <0>;
+					};
+				};
+			};
+
+			pcie@9,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x4800 0x0 0x0 0x0 0x0>;
+				interrupts = <32 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 32 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@a,0 {
+				compatible = "pci0014,7a09.1",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x5000 0x0 0x0 0x0 0x0>;
+				interrupts = <33 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 33 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@b,0 {
+				compatible = "pci0014,7a09.1",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x5800 0x0 0x0 0x0 0x0>;
+				interrupts = <34 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 34 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@c,0 {
+				compatible = "pci0014,7a09.1",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x6000 0x0 0x0 0x0 0x0>;
+				interrupts = <35 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 35 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@d,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x6800 0x0 0x0 0x0 0x0>;
+				interrupts = <36 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 36 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@e,0 {
+				compatible = "pci0014,7a09.1",
+						   "pci0014,7a09",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x7000 0x0 0x0 0x0 0x0>;
+				interrupts = <37 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 37 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@f,0 {
+				compatible = "pci0014,7a29.1",
+						   "pci0014,7a29",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x7800 0x0 0x0 0x0 0x0>;
+				interrupts = <40 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 40 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@10,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x8000 0x0 0x0 0x0 0x0>;
+				interrupts = <41 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 41 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@11,0 {
+				compatible = "pci0014,7a29.1",
+						   "pci0014,7a29",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x8800 0x0 0x0 0x0 0x0>;
+				interrupts = <42 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 42 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@12,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x9000 0x0 0x0 0x0 0x0>;
+				interrupts = <43 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 43 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@13,0 {
+				compatible = "pci0014,7a29.1",
+						   "pci0014,7a29",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0x9800 0x0 0x0 0x0 0x0>;
+				interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 38 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+
+			pcie@14,0 {
+				compatible = "pci0014,7a19.1",
+						   "pci0014,7a19",
+						   "pciclass060400",
+						   "pciclass0604";
+
+				reg = <0xa000 0x0 0x0 0x0 0x0>;
+				interrupts = <39 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-parent = <&pic>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &pic 39 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
+			};
+		};
+
+		isa@18000000 {
+			compatible = "isa";
+			#address-cells = <2>;
+			#size-cells = <1>;
+			ranges = <1 0 0 0x18000000 0x20000>;
+		};
+	};
+};

linux-7.2.3/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";
+};

linux-7.2.3/arch/mips/boot/dts/loongson/rs780e-pch.dtsi

@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	bus@10000000 {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0 0x10000000 0 0x10000000 0 0x10000000
+				0 0x40000000 0 0x40000000 0 0x40000000
+				0xfd 0xfe000000 0xfd 0xfe000000  0 0x2000000 /* PCI Config Space */>;
+
+		pci@1a000000 {
+			compatible = "loongson,rs780e-pci";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			reg = <0 0x1a000000 0 0x02000000>;
+
+			ranges = <0x01000000 0 0x00004000 0 0x18004000 0 0x0000c000>,
+				 <0x02000000 0 0x40000000 0 0x40000000 0 0x40000000>;
+		};
+
+		isa@18000000 {
+			compatible = "isa";
+			#address-cells = <2>;
+			#size-cells = <1>;
+			ranges = <1 0 0 0x18000000 0x4000>;
+
+			rtc0: rtc@70 {
+				compatible = "motorola,mc146818";
+				reg = <1 0x70 0x8>;
+				interrupts = <8>;
+				interrupt-parent = <&htpic>;
+			};
+
+			acpi@800 {
+				compatible = "loongson,rs780e-acpi";
+				reg = <1 0x800 0x100>;
+			};
+		};
+	};
+};

linux-7.2.3/arch/mips/boot/dts/loongson/smartloong-1c.dts

@@ -0,0 +1,110 @@
+// 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 "loongson1c.dtsi"
+
+/ {
+	compatible = "loongmasses,smartloong-1c", "loongson,ls1c";
+	model = "Smartloong-1C Board";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x4000000>;
+	};
+
+	aliases {
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+		gpio2 = &gpio2;
+		gpio3 = &gpio3;
+		serial0 = &uart2;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led0 {
+			label = "led0";
+			gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		led1 {
+			label = "led1";
+			gpios = <&gpio1 21 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "nand-disk";
+		};
+	};
+};
+
+&xtal {
+	clock-frequency = <24000000>;
+};
+
+&emac {
+	phy-handle = <&phy0>;
+	phy-mode = "rmii";
+	status = "okay";
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy0: ethernet-phy@13 {
+			reg = <0x13>;
+		};
+	};
+};
+
+&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>;
+			};
+		};
+	};
+};
+
+&ehci {
+	status = "okay";
+};
+
+&ohci {
+	status = "okay";
+};
+
+&rtc {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&watchdog {
+	status = "okay";
+};