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

Source file repositories/reference/linux-study-clean/arch/mips/boot/dts/loongson/loongson64c-package.dtsi

File Facts

System
Linux kernel
Corpus path
arch/mips/boot/dts/loongson/loongson64c-package.dtsi
Extension
.dtsi
Size
1534 bytes
Lines
65
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// 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;
		};
	};
};

Annotation

Implementation Notes