arch/arm/boot/dts/gemini/gemini.dtsi
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/gemini/gemini.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/gemini/gemini.dtsi- Extension
.dtsi- Size
- 13505 bytes
- Lines
- 493
- 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/interrupt-controller/irq.hdt-bindings/clock/cortina,gemini-clock.hdt-bindings/reset/cortina,gemini-reset.hdt-bindings/gpio/gpio.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 Cortina systems Gemini SoC
*/
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/clock/cortina,gemini-clock.h>
#include <dt-bindings/reset/cortina,gemini-reset.h>
#include <dt-bindings/gpio/gpio.h>
/ {
soc {
#address-cells = <1>;
#size-cells = <1>;
ranges;
compatible = "simple-bus";
interrupt-parent = <&intcon>;
flash: flash@30000000 {
compatible = "cortina,gemini-flash", "cfi-flash";
syscon = <&syscon>;
pinctrl-names = "default";
pinctrl-0 = <&pflash_default_pins>;
bank-width = <2>;
status = "disabled";
};
syscon: syscon@40000000 {
compatible = "cortina,gemini-syscon",
"syscon", "simple-mfd";
reg = <0x40000000 0x1000>;
#clock-cells = <1>;
#reset-cells = <1>;
syscon-reboot {
compatible = "syscon-reboot";
regmap = <&syscon>;
/* GLOBAL_RESET register */
offset = <0x0c>;
/* RESET_GLOBAL | RESET_CPU1 */
mask = <0xC0000000>;
};
pinctrl {
compatible = "cortina,gemini-pinctrl";
regmap = <&syscon>;
/* Hog the DRAM pins */
pinctrl-names = "default";
pinctrl-0 = <&dram_default_pins>, <&system_default_pins>,
<&vcontrol_default_pins>;
dram_default_pins: pinctrl-dram {
mux {
function = "dram";
groups = "dramgrp";
};
};
rtc_default_pins: pinctrl-rtc {
mux {
function = "rtc";
groups = "rtcgrp";
};
};
ssp_default_pins: pinctrl-ssp {
mux {
function = "ssp";
groups = "sspgrp";
};
};
power_default_pins: pinctrl-power {
Annotation
- Immediate include surface: `dt-bindings/interrupt-controller/irq.h`, `dt-bindings/clock/cortina,gemini-clock.h`, `dt-bindings/reset/cortina,gemini-reset.h`, `dt-bindings/gpio/gpio.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.