arch/arm/boot/dts/cirrus/ep93xx.dtsi
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/cirrus/ep93xx.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/cirrus/ep93xx.dtsi- Extension
.dtsi- Size
- 10552 bytes
- Lines
- 445
- Domain
- Architecture Layer
- Bucket
- arch/arm
- 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
dt-bindings/gpio/gpio.hdt-bindings/leds/common.hdt-bindings/input/input.hdt-bindings/clock/cirrus,ep9301-syscon.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
/*
* Device Tree file for Cirrus Logic systems EP93XX SoC
*/
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/clock/cirrus,ep9301-syscon.h>
/ {
soc: soc {
compatible = "simple-bus";
ranges;
#address-cells = <1>;
#size-cells = <1>;
syscon: syscon@80930000 {
compatible = "cirrus,ep9301-syscon", "syscon";
reg = <0x80930000 0x1000>;
#clock-cells = <1>;
clocks = <&xtali>;
spi_default_pins: pins-spi {
function = "spi";
groups = "ssp";
};
ac97_default_pins: pins-ac97 {
function = "ac97";
groups = "ac97";
};
i2s_on_ssp_pins: pins-i2sonssp {
function = "i2s";
groups = "i2s_on_ssp";
};
i2s_on_ac97_pins: pins-i2sonac97 {
function = "i2s";
groups = "i2s_on_ac97";
};
gpio1_default_pins: pins-gpio1 {
function = "gpio";
groups = "gpio1agrp";
};
pwm1_default_pins: pins-pwm1 {
function = "pwm";
groups = "pwm1";
};
gpio2_default_pins: pins-gpio2 {
function = "gpio";
groups = "gpio2agrp";
};
gpio3_default_pins: pins-gpio3 {
function = "gpio";
groups = "gpio3agrp";
};
keypad_default_pins: pins-keypad {
function = "keypad";
groups = "keypadgrp";
};
gpio4_default_pins: pins-gpio4 {
function = "gpio";
groups = "gpio4agrp";
Annotation
- Immediate include surface: `dt-bindings/gpio/gpio.h`, `dt-bindings/leds/common.h`, `dt-bindings/input/input.h`, `dt-bindings/clock/cirrus,ep9301-syscon.h`.
- Atlas domain: Architecture Layer / arch/arm.
- 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.