Documentation/devicetree/bindings/timer/snps,arc-timer.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/timer/snps,arc-timer.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/timer/snps,arc-timer.yaml
Extension
.yaml
Size
1115 bytes
Lines
46
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/snps,arc-timer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Synopsys ARC Local Timer

maintainers:
  - Vineet Gupta <vgupta@synopsys.com>

description: >
  Synopsys ARC Local Timer with Interrupt Capabilities

    - Found on all ARC CPUs (ARC700/ARCHS)
    - Can be optionally programmed to interrupt on Limit
    - Two identical copies TIMER0 and TIMER1 exist in ARC cores and historically
      TIMER0 used as clockevent provider (true for all ARC cores)
      TIMER1 used for clocksource (mandatory for ARC700, optional for ARC HS)

properties:
  compatible:
    const: snps,arc-timer

  interrupts:
    maxItems: 1
    description: A single timer interrupt going into the parent interrupt controller.
      Use <16> for ARCHS cores, <3> for ARC700 cores.

  clocks:
    maxItems: 1

required:
  - compatible
  - clocks

additionalProperties: false

examples:
  - |
    timer0 {
        compatible = "snps,arc-timer";
        interrupts = <3>;
        clocks = <&core_clk>;
    };

Annotation

Implementation Notes