arch/arm64/boot/dts/freescale/imx8mm-ucm-som.dtsi
Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mm-ucm-som.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm64/boot/dts/freescale/imx8mm-ucm-som.dtsi- Extension
.dtsi- Size
- 16467 bytes
- Lines
- 680
- 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
imx8mm.dtsidt-bindings/leds/common.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
//
// Copyright 2018 CompuLab
/dts-v1/;
#include "imx8mm.dtsi"
#include <dt-bindings/leds/common.h>
/ {
aliases {
rtc0 = &rtc_i2c;
rtc1 = &snvs_rtc;
mmc0 = &usdhc3;
};
chosen {
stdout-path = &uart3;
};
backlight {
compatible = "pwm-backlight";
pwms = <&pwm2 0 3000000 0>;
brightness-levels = <0 255>;
num-interpolated-steps = <255>;
default-brightness-level = <222>;
status = "okay";
};
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpio_led>;
heartbeat-led {
function = LED_FUNCTION_STATUS;
gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
linux,default-trigger = "heartbeat";
};
};
pmic_osc: clock-pmic {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <32768>;
clock-output-names = "pmic_osc";
};
wlreg_on: regulator-wlreg-on {
compatible = "regulator-fixed";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "wlreg_on";
gpio = <&gpio2 10 GPIO_ACTIVE_HIGH>;
startup-delay-us = <100>;
enable-active-high;
regulator-always-on;
status = "okay";
};
reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
compatible = "regulator-fixed";
regulator-name = "VSD_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
enable-active-high;
startup-delay-us = <100>;
off-on-delay-us = <12000>;
};
Annotation
- Immediate include surface: `imx8mm.dtsi`, `dt-bindings/leds/common.h`.
- 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.