arch/arm/boot/dts/ti/omap/omap3-n900.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/omap/omap3-n900.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/ti/omap/omap3-n900.dts
Extension
.dts
Size
29177 bytes
Lines
1158
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
/*
 * Copyright (C) 2013 Pavel Machek <pavel@ucw.cz>
 * Copyright (C) 2013-2014 Aaro Koskinen <aaro.koskinen@iki.fi>
 */

/dts-v1/;

#include "omap34xx.dtsi"
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/media/video-interfaces.h>

/*
 * Default secure signed bootloader (Nokia X-Loader) does not enable L3 firewall
 * for omap AES HW crypto support. When linux kernel try to access memory of AES
 * blocks then kernel receive "Unhandled fault: external abort on non-linefetch"
 * and crash. Until somebody fix omap-aes.c and omap_hwmod_3xxx_data.c code (no
 * crash anymore) omap AES support will be disabled for all Nokia N900 devices.
 * There is "unofficial" version of bootloader which enables AES in L3 firewall
 * but it is not widely used and to prevent kernel crash rather AES is disabled.
 * There is also no runtime detection code if AES is disabled in L3 firewall...
 */
&aes1_target {
	status = "disabled";
};

&aes2_target {
	status = "disabled";
};

/ {
	model = "Nokia N900";
	compatible = "nokia,omap3-n900", "ti,omap3430", "ti,omap3";

	aliases {
		i2c0;
		i2c1 = &i2c1;
		i2c2 = &i2c2;
		i2c3 = &i2c3;
		display0 = &lcd;
		display1 = &tv;
	};

	cpus {
		cpu@0 {
			cpu0-supply = <&vcc>;
		};
	};

	leds {
		compatible = "gpio-leds";
		led-heartbeat {
			label = "debug::sleep";
			gpios = <&gpio6 2 GPIO_ACTIVE_HIGH>;  /* 162 */
			linux,default-trigger = "default-on";
			pinctrl-names = "default";
			pinctrl-0 = <&debug_leds>;
		};
	};

	memory@80000000 {
		device_type = "memory";
		reg = <0x80000000 0x10000000>; /* 256 MB */
	};

	gpio_keys {
		compatible = "gpio-keys";

		camera_lens_cover {

Annotation

Implementation Notes