Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.yaml

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System
Linux kernel
Corpus path
Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.yaml
Extension
.yaml
Size
7676 bytes
Lines
248
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

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

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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/timer/samsung,exynos4210-mct.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Samsung Exynos SoC Multi Core Timer (MCT)

maintainers:
  - Krzysztof Kozlowski <krzk@kernel.org>

description: |+
  The Samsung's Multi Core Timer (MCT) module includes two main blocks, the
  global timer and CPU local timers. The global timer is a 64-bit free running
  up-counter and can generate 4 interrupts when the counter reaches one of the
  four preset counter values. The CPU local timers are 32-bit free running
  down-counters and generate an interrupt when the counter expires. There is
  one CPU local timer instantiated in MCT for every CPU in the system.

properties:
  compatible:
    oneOf:
      - enum:
          - samsung,exynos4210-mct
          - samsung,exynos4412-mct
      - items:
          - enum:
              - axis,artpec8-mct
              - axis,artpec9-mct
              - google,gs101-mct
              - samsung,exynos2200-mct-peris
              - samsung,exynos3250-mct
              - samsung,exynos5250-mct
              - samsung,exynos5260-mct
              - samsung,exynos5420-mct
              - samsung,exynos5433-mct
              - samsung,exynos850-mct
              - samsung,exynos8895-mct
              - samsung,exynos990-mct
              - tesla,fsd-mct
          - const: samsung,exynos4210-mct

  clocks:
    maxItems: 2

  clock-names:
    items:
      - const: fin_pll
      - const: mct

  reg:
    maxItems: 1

  samsung,frc-shared:
    type: boolean
    description: |
      Indicates that the hardware requires that this processor share the
      free-running counter with a different (main) processor.

  samsung,local-timers:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    minItems: 1
    maxItems: 16
    description: |
      List of indices of local timers usable from this processor.

  interrupts:
    description: |
      Interrupts should be put in specific order. This is, the local timer
      interrupts should be specified after the four global timer interrupts

Annotation

Implementation Notes