1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/rtc/ingenic,rtc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Ingenic SoCs Real-Time Clock
8
9 maintainers:
10 - Paul Cercueil <paul@crapouillou.net>
11
12 allOf:
13 - $ref: rtc.yaml#
14 - if:
15 not:
16 properties:
17 compatible:
18 contains:
19 enum:
20 - ingenic,jz4770-rtc
21 - ingenic,jz4780-rtc
22 then:
23 properties:
24 "#clock-cells": false
25
26 properties:
27 compatible:
28 oneOf:
29 - enum:
30 - ingenic,jz4740-rtc
31 - ingenic,jz4760-rtc
32 - items:
33 - const: ingenic,jz4725b-rtc
34 - const: ingenic,jz4740-rtc
35 - items:
36 - enum:
37 - ingenic,jz4770-rtc
38 - ingenic,jz4780-rtc
39 - const: ingenic,jz4760-rtc
40
41 reg:
42 maxItems: 1
43
44 interrupts:
45 maxItems: 1
46
47 clocks:
48 maxItems: 1
49
50 clock-names:
51 const: rtc
52
53 "#clock-cells":
54 const: 0
55
56 system-power-controller:
57 description: |
58 Indicates that the RTC is responsible for powering OFF
59 the system.
60 type: boolean
61
62 ingenic,reset-pin-assert-time-ms:
63 minimum: 0
64 maximum: 125
65 default: 60
66 description: |
67 Reset pin low-level assertion time after wakeup
68 (assuming RTC clock at 32 kHz)
69
70 ingenic,min-wakeup-pin-assert-time-ms:
71 minimum: 0
72 maximum: 2000
73 default: 100
74 description: |
75 Minimum wakeup pin assertion time
76 (assuming RTC clock at 32 kHz)
77
78 required:
79 - compatible
80 - reg
81 - interrupts
82 - clocks
83 - clock-names
84
85 unevaluatedProperties: false
86
87 examples:
88 - |
89 #include <dt-bindings/clock/ingenic,jz4740-cgu.h>
90 rtc_dev: rtc@10003000 {
91 compatible = "ingenic,jz4740-rtc";
92 reg = <0x10003000 0x40>;
93
94 interrupt-parent = <&intc>;
95 interrupts = <15>;
96
97 clocks = <&cgu JZ4740_CLK_RTC>;
98 clock-names = "rtc";
99 };
100
101 - |
102 #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
103 rtc: rtc@10003000 {
104 compatible = "ingenic,jz4780-rtc", "ingenic,jz4760-rtc";
105 reg = <0x10003000 0x4c>;
106
107 interrupt-parent = <&intc>;
108 interrupts = <32>;
109
110 clocks = <&cgu JZ4780_CLK_RTCLK>;
111 clock-names = "rtc";
112
113 #clock-cells = <0>;
114 };
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