xref: /linux/Documentation/devicetree/bindings/timer/realtek,rtd1625-systimer.yaml (revision 24f171c7e145f43b9f187578e89b0982ce87e54c)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/timer/realtek,rtd1625-systimer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Realtek System Timer

maintainers:
  - Hao-Wen Ting <haowen.ting@realtek.com>

description:
  The Realtek SYSTIMER (System Timer) is a 64-bit global hardware counter operating
  at a fixed 1MHz frequency. Thanks to its compare match interrupt capability,
  the timer natively supports oneshot mode for tick broadcast functionality.

properties:
  compatible:
    oneOf:
      - const: realtek,rtd1625-systimer
      - items:
          - const: realtek,rtd1635-systimer
          - const: realtek,rtd1625-systimer

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

required:
  - compatible
  - reg
  - interrupts

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    timer@89420 {
        compatible = "realtek,rtd1635-systimer",
                     "realtek,rtd1625-systimer";
        reg = <0x89420 0x18>;
        interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
    };