arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi- Extension
.dtsi- Size
- 29581 bytes
- Lines
- 1208
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
imx8mp.dtsi
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021-2026 Marek Vasut
*/
#include "imx8mp.dtsi"
/ {
model = "DH electronics i.MX8M Plus DHCOM SoM";
compatible = "dh,imx8mp-dhcom-som", "fsl,imx8mp";
aliases {
ethernet0 = &eqos;
ethernet1 = &fec;
rtc0 = &rv3032;
rtc1 = &snvs_rtc;
spi0 = &flexspi;
};
memory@40000000 {
device_type = "memory";
/* Memory size 512 MiB..8 GiB will be filled by U-Boot */
reg = <0x0 0x40000000 0 0x08000000>;
};
reg_eth_vio: regulator-eth-vio {
compatible = "regulator-fixed";
gpio = <&ioexp 2 GPIO_ACTIVE_LOW>;
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "eth_vio";
vin-supply = <&buck4>;
};
reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
compatible = "regulator-fixed";
enable-active-high;
gpio = <&gpio2 19 0>; /* SD2_RESET */
off-on-delay-us = <12000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc2_vmmc>;
regulator-max-microvolt = <3300000>;
regulator-min-microvolt = <3300000>;
regulator-name = "VDD_3V3_SD";
startup-delay-us = <100>;
vin-supply = <&buck4>;
};
reg_vdd_3p3v_awo: regulator-vdd-3p3v-awo { /* VDD_3V3_AWO */
compatible = "regulator-fixed";
regulator-always-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "VDD_3P3V_AWO";
};
wlan_pwrseq: wifi-pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&ioexp 1 GPIO_ACTIVE_LOW>;
};
};
&A53_0 {
cpu-supply = <&buck2>;
};
&A53_1 {
cpu-supply = <&buck2>;
Annotation
- Immediate include surface: `imx8mp.dtsi`.
- Atlas domain: Architecture Layer / arch/arm64.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.