arch/arm64/boot/dts/apple/t8103-j456.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/apple/t8103-j456.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/apple/t8103-j456.dts
Extension
.dts
Size
1531 bytes
Lines
91
Domain
Architecture Layer
Bucket
arch/arm64
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 MIT
/*
 * Apple iMac (24-inch, 4x USB-C, M1, 2020)
 *
 * target-type: J456
 *
 * Copyright The Asahi Linux Contributors
 */

/dts-v1/;

#include "t8103.dtsi"
#include "t8103-jxxx.dtsi"

/ {
	compatible = "apple,j456", "apple,t8103", "apple,arm-platform";
	model = "Apple iMac (24-inch, 4x USB-C, M1, 2021)";
	chassis-type = "all-in-one";

	aliases {
		ethernet0 = &ethernet0;
	};
};

&bluetooth0 {
	brcm,board-type = "apple,capri";
};

&wifi0 {
	brcm,board-type = "apple,capri";
};

&i2c0 {
	hpm2: usb-pd@3b {
		compatible = "apple,cd321x";
		reg = <0x3b>;
		interrupt-parent = <&pinctrl_ap>;
		interrupts = <106 IRQ_TYPE_LEVEL_LOW>;
		interrupt-names = "irq";
	};

	hpm3: usb-pd@3c {
		compatible = "apple,cd321x";
		reg = <0x3c>;
		interrupt-parent = <&pinctrl_ap>;
		interrupts = <106 IRQ_TYPE_LEVEL_LOW>;
		interrupt-names = "irq";
	};
};

/*
 * Provide labels for the USB type C ports.
 */

&typec0 {
	label = "USB-C Back-right";
};

&typec1 {
	label = "USB-C Back-right-middle";
};

/*
 * Force the bus number assignments so that we can declare some of the
 * on-board devices and properties that are populated by the bootloader
 * (such as MAC addresses).
 */

&port01 {
	bus-range = <2 2>;

Annotation

Implementation Notes