arch/arm64/boot/dts/freescale/imx8mp-prt8ml.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-prt8ml.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-prt8ml.dts
Extension
.dts
Size
10940 bytes
Lines
505
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)
/*
 * Copyright 2020 Protonic Holland
 * Copyright 2019 NXP
 */

/dts-v1/;

#include "imx8mp.dtsi"

/ {
	model = "Protonic PRT8ML";
	compatible = "prt,prt8ml", "fsl,imx8mp";

	chosen {
		stdout-path = &uart4;
	};

	pcie_refclk: pcie0-refclk {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <100000000>;
	};

	pcie_refclk_oe: pcie0-refclk-oe {
		compatible = "gpio-gate-clock";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_pcie_refclk>;
		clocks = <&pcie_refclk>;
		#clock-cells = <0>;
		enable-gpios = <&gpio5 23 GPIO_ACTIVE_HIGH>;
	};
};

&A53_0 {
	cpu-supply = <&fan53555>;
};

&A53_1 {
	cpu-supply = <&fan53555>;
};

&A53_2 {
	cpu-supply = <&fan53555>;
};

&A53_3 {
	cpu-supply = <&fan53555>;
};

&a53_opp_table {
	opp-1200000000 {
		opp-microvolt = <900000>;
	};

	opp-1600000000 {
		opp-microvolt = <980000>;
	};

	/* Power supply insuffient for 1.8 GHz */
	/delete-node/ opp-1800000000;
};

&ecspi2 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_ecspi2>;
	cs-gpios = <&gpio5 13 GPIO_ACTIVE_HIGH>;

	/* Disable DMA to meet performance requirements */
	/delete-property/ dmas;

Annotation

Implementation Notes