Commit 1be96d14 authored by Anson Huang's avatar Anson Huang Committed by Rob Herring
Browse files

dt-bindings: timer: Convert i.MX SYSCTR to json-schema 



Convert the i.MX SYSCTR binding to DT schema format using json-schema.

Signed-off-by: default avatarAnson Huang <Anson.Huang@nxp.com>
Reviewed-by: default avatarDong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 8f2d9010

Documentation/devicetree/bindings/timer/nxp,sysctr-timer.txt

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NXP System Counter Module(sys_ctr)



The system counter(sys_ctr) is a programmable system counter which provides

a shared time base to Cortex A15, A7, A53, A73, etc. it is intended for use in

applications where the counter is always powered and support multiple,

unrelated clocks. The compare frame inside can be used for timer purpose.



Required properties:



- compatible :      should be "nxp,sysctr-timer"

- reg :             Specifies the base physical address and size of the comapre

                    frame and the counter control, read & compare.

- interrupts :      should be the first compare frames' interrupt

- clocks : 	    Specifies the counter clock.

- clock-names: 	    Specifies the clock's name of this module



Example:



	system_counter: timer@306a0000 {

		compatible = "nxp,sysctr-timer";

		reg = <0x306a0000 0x20000>;/* system-counter-rd & compare */

		clocks = <&clk_8m>;

		clock-names = "per";

		interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;

	};

Documentation/devicetree/bindings/timer/nxp,sysctr-timer.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/timer/nxp,sysctr-timer.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: NXP System Counter Module(sys_ctr)



maintainers:

  - Bai Ping <ping.bai@nxp.com>



description: |

  The system counter(sys_ctr) is a programmable system counter

  which provides a shared time base to Cortex A15, A7, A53, A73,

  etc. it is intended for use in applications where the counter

  is always powered and support multiple, unrelated clocks. The

  compare frame inside can be used for timer purpose.



properties:

  compatible:

    const: nxp,sysctr-timer



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    maxItems: 1



  clock-names:

    const: per



required:

  - compatible

  - reg

  - interrupts

  - clocks

  - clock-names



additionalProperties: false



examples:

  - |

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



    timer@306a0000 {

        compatible = "nxp,sysctr-timer";

        reg = <0x306a0000 0x20000>;

        clocks = <&clk_8m>;

        clock-names = "per";

        interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;

     };