arch/arm64/boot/dts/freescale/imx8mm-evkb.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mm-evkb.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mm-evkb.dts
Extension
.dts
Size
2839 bytes
Lines
129
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 2019-2020 NXP
 */

/dts-v1/;

#include "imx8mm-evk.dtsi"

/ {
	model = "FSL i.MX8MM EVKB";
	compatible = "fsl,imx8mm-evkb", "fsl,imx8mm";
};

&i2c1 {
	/delete-node/ pmic@4b;

	pmic@25 {
		compatible = "nxp,pca9450a";
		reg = <0x25>;
		pinctrl-0 = <&pinctrl_pmic>;
		pinctrl-names = "default";
		interrupt-parent = <&gpio1>;
		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;

		regulators {
			/* VDD_SOC with PCIe */
			buck1_reg: BUCK1 {
				regulator-name = "BUCK1";
				regulator-min-microvolt = <850000>;
				regulator-max-microvolt = <850000>;
				regulator-boot-on;
				regulator-always-on;
				regulator-ramp-delay = <3125>;
			};

			/* VDD_ARM */
			buck2_reg: BUCK2 {
				regulator-name = "BUCK2";
				regulator-min-microvolt = <850000>;
				regulator-max-microvolt = <1000000>;
				regulator-boot-on;
				regulator-always-on;
				regulator-ramp-delay = <3125>;
				nxp,dvs-standby-voltage = <850000>;
			};

			/* VDD_GPU, VDD_VPU, VDD_DRAM */
			buck3_reg: BUCK3 {
				regulator-name = "BUCK3";
				regulator-min-microvolt = <850000>;
				regulator-max-microvolt = <1000000>;
				regulator-boot-on;
				regulator-always-on;
			};

			/* NVCC_3V3 */
			buck4_reg: BUCK4 {
				regulator-name = "BUCK4";
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;
				regulator-boot-on;
				regulator-always-on;
			};

			/* VDD_1V8, NVCC_1V8, NVCC_ENET */
			buck5_reg: BUCK5 {
				regulator-name = "BUCK5";
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <1800000>;

Annotation

Implementation Notes