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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