tjh.dev
Linux kernel mirror (for testing)
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linux
1# SPDX-License-Identifier: GPL-2.0-only
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/timer/snps,dw-apb-timer.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Synopsys DesignWare APB Timer
8
9maintainers:
10 - Daniel Lezcano <daniel.lezcano@linaro.org>
11
12properties:
13 compatible:
14 oneOf:
15 - const: snps,dw-apb-timer
16 - enum:
17 - snps,dw-apb-timer-sp
18 - snps,dw-apb-timer-osc
19 deprecated: true
20
21 reg:
22 maxItems: 1
23
24 interrupts:
25 maxItems: 1
26
27 clocks:
28 minItems: 1
29 items:
30 - description: Timer ticks reference clock source
31 - description: APB interface clock source
32
33 clock-names:
34 minItems: 1
35 items:
36 - const: timer
37 - const: pclk
38
39 clock-frequency: true
40
41 clock-freq:
42 $ref: "/schemas/types.yaml#/definitions/uint32"
43 description: |
44 Has the same meaning as the 'clock-frequency' property - timer clock
45 frequency in HZ, but is defined only for the backwards compatibility
46 with the picoxcell platform.
47
48additionalProperties: false
49
50required:
51 - compatible
52 - reg
53 - interrupts
54
55oneOf:
56 - required:
57 - clocks
58 - clock-names
59 - required:
60 - clock-frequency
61 - required:
62 - clock-freq
63
64examples:
65 - |
66 timer@ffe00000 {
67 compatible = "snps,dw-apb-timer";
68 interrupts = <0 170 4>;
69 reg = <0xffe00000 0x1000>;
70 clocks = <&timer_clk>, <&timer_pclk>;
71 clock-names = "timer", "pclk";
72 };
73 - |
74 timer@ffe00000 {
75 compatible = "snps,dw-apb-timer";
76 interrupts = <0 170 4>;
77 reg = <0xffe00000 0x1000>;
78 clocks = <&timer_clk>;
79 clock-names = "timer";
80 };
81 - |
82 timer@ffe00000 {
83 compatible = "snps,dw-apb-timer";
84 interrupts = <0 170 4>;
85 reg = <0xffe00000 0x1000>;
86 clock-frequency = <25000000>;
87 };
88...