bindings/timer/nxp%2Csysctr-timer.yaml

0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/timer/nxp,sysctr-timer.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: NXP System Counter Module(sys_ctr)
0008
0009 maintainers:
0010   - Bai Ping <ping.bai@nxp.com>
0011
0012 description: |
0013   The system counter(sys_ctr) is a programmable system counter
0014   which provides a shared time base to Cortex A15, A7, A53, A73,
0015   etc. it is intended for use in applications where the counter
0016   is always powered and support multiple, unrelated clocks. The
0017   compare frame inside can be used for timer purpose.
0018
0019 properties:
0020   compatible:
0021     const: nxp,sysctr-timer
0022
0023   reg:
0024     maxItems: 1
0025
0026   interrupts:
0027     maxItems: 1
0028
0029   clocks:
0030     maxItems: 1
0031
0032   clock-names:
0033     const: per
0034
0035 required:
0036   - compatible
0037   - reg
0038   - interrupts
0039   - clocks
0040   - clock-names
0041
0042 additionalProperties: false
0043
0044 examples:
0045   - |
0046     #include <dt-bindings/interrupt-controller/arm-gic.h>
0047
0048     timer@306a0000 {
0049         compatible = "nxp,sysctr-timer";
0050         reg = <0x306a0000 0x20000>;
0051         clocks = <&clk_8m>;
0052         clock-names = "per";
0053         interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
0054      };