arch/arc/boot/dts/nsimosci.dts

Source file repositories/reference/linux-study-clean/arch/arc/boot/dts/nsimosci.dts

File Facts

System
Linux kernel
Corpus path
arch/arc/boot/dts/nsimosci.dts
Extension
.dts
Size
1812 bytes
Lines
89
Domain
Architecture Layer
Bucket
arch/arc
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-only
/*
 * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
 */
/dts-v1/;

/include/ "skeleton.dtsi"

/ {
	model = "snps,nsimosci";
	compatible = "snps,nsimosci";
	#address-cells = <1>;
	#size-cells = <1>;
	interrupt-parent = <&core_intc>;

	chosen {
		/* this is for console on PGU */
		/* bootargs = "console=tty0 consoleblank=0"; */
		/* this is for console on serial */
		bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug video=640x480-24 print-fatal-signals=1";
	};

	aliases {
		serial0 = &uart0;
	};

	fpga {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;

		/* child and parent address space 1:1 mapped */
		ranges;

		core_clk: core_clk {
			#clock-cells = <0>;
			compatible = "fixed-clock";
			clock-frequency = <20000000>;
		};

		core_intc: interrupt-controller {
			compatible = "snps,arc700-intc";
			interrupt-controller;
			#interrupt-cells = <1>;
		};

		uart0: serial@f0000000 {
			compatible = "ns8250";
			reg = <0xf0000000 0x2000>;
			interrupts = <11>;
			clock-frequency = <3686400>;
			baud = <115200>;
			reg-shift = <2>;
			reg-io-width = <4>;
			no-loopback-test = <1>;
		};

		pguclk: pguclk {
			#clock-cells = <0>;
			compatible = "fixed-clock";
			clock-frequency = <25175000>;
		};

		pgu@f9000000 {
			compatible = "snps,arcpgu";
			reg = <0xf9000000 0x400>;
			clocks = <&pguclk>;
			clock-names = "pxlclk";
		};

Annotation

Implementation Notes