arch/mips/boot/dts/qca/ar9331.dtsi
Source file repositories/reference/linux-study-clean/arch/mips/boot/dts/qca/ar9331.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/mips/boot/dts/qca/ar9331.dtsi- Extension
.dtsi- Size
- 5487 bytes
- Lines
- 310
- Domain
- Architecture Layer
- Bucket
- arch/mips
- 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/clock/ath79-clk.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
#include <dt-bindings/clock/ath79-clk.h>
/ {
compatible = "qca,ar9331";
#address-cells = <1>;
#size-cells = <1>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
compatible = "mips,mips24Kc";
clocks = <&pll ATH79_CLK_CPU>;
reg = <0>;
};
};
cpuintc: interrupt-controller {
compatible = "qca,ar7100-cpu-intc";
interrupt-controller;
#interrupt-cells = <1>;
qca,ddr-wb-channel-interrupts = <2>, <3>;
qca,ddr-wb-channels = <&ddr_ctrl 3>, <&ddr_ctrl 2>;
};
ref: ref {
compatible = "fixed-clock";
#clock-cells = <0>;
};
ahb {
compatible = "simple-bus";
ranges;
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&cpuintc>;
apb {
compatible = "simple-bus";
ranges;
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&miscintc>;
ddr_ctrl: memory-controller@18000000 {
compatible = "qca,ar7240-ddr-controller";
reg = <0x18000000 0x100>;
#qca,ddr-wb-channel-cells = <1>;
};
uart: serial@18020000 {
compatible = "qca,ar9330-uart";
reg = <0x18020000 0x14>;
interrupts = <3>;
clocks = <&ref>;
clock-names = "uart";
Annotation
- Immediate include surface: `dt-bindings/clock/ath79-clk.h`.
- Atlas domain: Architecture Layer / arch/mips.
- 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.