arch/arm64/boot/dts/apple/t8112-j473.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/apple/t8112-j473.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/apple/t8112-j473.dts
Extension
.dts
Size
1430 bytes
Lines
87
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 Mac mini (M2, 2023)
 *
 * target-type: J473
 *
 * Copyright The Asahi Linux Contributors
 */

/dts-v1/;

#include "t8112.dtsi"
#include "t8112-jxxx.dtsi"

/ {
	compatible = "apple,j473", "apple,t8112", "apple,arm-platform";
	model = "Apple Mac mini (M2, 2023)";
	chassis-type = "desktop";

	aliases {
		ethernet0 = &ethernet0;
	};
};

/*
 * Keep the power-domains used for the HDMI port on.
 */
&framebuffer0 {
	power-domains = <&ps_dispext_cpu0>, <&ps_dptx_ext_phy>;
};

/*
 * The M2 Mac mini uses dispext for the HDMI output so it's not necessary to
 * keep disp0 power-domains always-on.
 */
&ps_disp0_sys {
	/delete-property/ apple,always-on;
};

&ps_disp0_fe {
	/delete-property/ apple,always-on;
};

/*
 * 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).
 */
&port00 {
	bus-range = <1 1>;
};

&port01 {
	bus-range = <2 2>;
	status = "okay";
};

&port02 {
	bus-range = <3 3>;
	status = "okay";
	ethernet0: ethernet@0,0 {
		reg = <0x30000 0x0 0x0 0x0 0x0>;
		/* To be filled by the loader */
		local-mac-address = [00 10 18 00 00 00];
	};
};

&pcie1_dart {
	status = "okay";
};

Annotation

Implementation Notes