arch/arm/boot/dts/microchip/sama5d3xcm.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/sama5d3xcm.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/sama5d3xcm.dtsi
Extension
.dtsi
Size
2831 bytes
Lines
140
Domain
Architecture Layer
Bucket
arch/arm
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-or-later
/*
 * sama5d3xcm.dtsi - Device Tree Include file for SAMA5D3x CPU Module
 *
 *  Copyright (C) 2013 Atmel,
 *                2013 Ludovic Desroches <ludovic.desroches@atmel.com>
 */

/ {
	compatible = "atmel,sama5d3xcm", "atmel,sama5d3", "atmel,sama5";

	chosen {
		bootargs = "rootfstype=ubifs ubi.mtd=5 root=ubi0:rootfs";
		stdout-path = "serial0:115200n8";
	};

	memory@20000000 {
		reg = <0x20000000 0x20000000>;
	};

	clocks {
		slow_xtal {
			clock-frequency = <32768>;
		};

		main_xtal {
			clock-frequency = <12000000>;
		};
	};

	ahb {
		apb {
			spi0: spi@f0004000 {
				cs-gpios = <&pioD 13 0>, <0>, <0>, <0>;
			};

			tcb0: timer@f0010000 {
				timer@0 {
					compatible = "atmel,tcb-timer";
					reg = <0>;
				};

				timer@1 {
					compatible = "atmel,tcb-timer";
					reg = <1>;
				};
			};
		};

		ebi@10000000 {
			pinctrl-0 = <&pinctrl_ebi_addr &pinctrl_ebi_cs0>;
			pinctr-name = "default";
			status = "okay";

			nor: flash@0,0 {
				compatible = "cfi-flash";
				linux,mtd-name = "physmap-flash.0";
				#address-cells = <1>;
				#size-cells = <1>;
				reg = <0x0 0x0 0x1000000>;
				bank-width = <2>;
				atmel,smc-read-mode = "nrd";
				atmel,smc-write-mode = "nwe";
				atmel,smc-bus-width = <16>;
				atmel,smc-ncs-rd-setup-ns = <0>;
				atmel,smc-ncs-wr-setup-ns = <0>;
				atmel,smc-nwe-setup-ns = <8>;
				atmel,smc-nrd-setup-ns = <16>;
				atmel,smc-ncs-rd-pulse-ns = <84>;
				atmel,smc-ncs-wr-pulse-ns = <84>;

Annotation

Implementation Notes