nxp,sysctr-timer.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/timer/nxp,sysctr-timer.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: NXP System Counter Module(sys_ctr)
    8 
    9 maintainers:
   10   - Bai Ping <ping.bai@nxp.com>
   11 
   12 description: |
   13   The system counter(sys_ctr) is a programmable system counter
   14   which provides a shared time base to Cortex A15, A7, A53, A73,
   15   etc. it is intended for use in applications where the counter
   16   is always powered and support multiple, unrelated clocks. The
   17   compare frame inside can be used for timer purpose.
   18 
   19 properties:
   20   compatible:
   21     const: nxp,sysctr-timer
   22 
   23   reg:
   24     maxItems: 1
   25 
   26   interrupts:
   27     maxItems: 1
   28 
   29   clocks:
   30     maxItems: 1
   31 
   32   clock-names:
   33     const: per
   34 
   35 required:
   36   - compatible
   37   - reg
   38   - interrupts
   39   - clocks
   40   - clock-names
   41 
   42 additionalProperties: false
   43 
   44 examples:
   45   - |
   46     #include <dt-bindings/interrupt-controller/arm-gic.h>
   47 
   48     timer@306a0000 {
   49         compatible = "nxp,sysctr-timer";
   50         reg = <0x306a0000 0x20000>;
   51         clocks = <&clk_8m>;
   52         clock-names = "per";
   53         interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
   54      };

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sys/contrib/device-tree/Bindings/timer/nxp,sysctr-timer.yaml