arch/arm/boot/dts/st/ste-nomadik-s8815.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/st/ste-nomadik-s8815.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/st/ste-nomadik-s8815.dts
Extension
.dts
Size
3441 bytes
Lines
173
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
/*
 * Device Tree for the ST-Ericsson Nomadik S8815 board
 * Produced by Calao Systems
 */

/dts-v1/;
#include <dt-bindings/interrupt-controller/irq.h>
#include "ste-nomadik-stn8815.dtsi"

/ {
	model = "Calao Systems USB-S8815";
	compatible = "calaosystems,usb-s8815";

	chosen {
		bootargs = "root=/dev/ram0 console=ttyAMA1,115200n8 earlyprintk";
	};

	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
	};

	gpio3: gpio@101e7000 {
		/* This hog will bias the MMC/SD card detect line */
		mmcsd-hog {
			gpio-hog;
			gpios = <16 0x0>;
			output-low;
			line-name = "card detect bias";
		};
	};

	src@101e0000 {
		/* These chrystal drivers are not used on this board */
		disable-sxtalo;
		disable-mxtalo;
	};

	pinctrl {
		/* Hog CD pins */
		pinctrl-names = "default";
		pinctrl-0 = <&cd_default_mode>;

		uart0 {
			/* Only use RX/TX pins */
			uart0_s8815_mode: uart0_mux {
				u0_default_mux {
					function = "u0";
					groups = "u0txrx_a_1";
				};
			};
		};
		mmcsd-cd {
			cd_default_mode: cd_default {
				cd_default_cfg1 {
					/* CD input GPIO */
					pins = "GPIO111_H21";
					ste,input = <0>;
				};
				cd_default_cfg2 {
					/* CD GPIO biasing */
					pins = "GPIO112_J21";
					ste,output = <0>;
				};
			};
		};
		gpioi2c {
			gpioi2c_default_mode: gpioi2c_default {
				gpioi2c_default_cfg {

Annotation

Implementation Notes