0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/rtc/ingenic,rtc.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Ingenic SoCs Real-Time Clock DT bindings
0008
0009 maintainers:
0010 - Paul Cercueil <paul@crapouillou.net>
0011
0012 allOf:
0013 - $ref: rtc.yaml#
0014
0015 properties:
0016 compatible:
0017 oneOf:
0018 - enum:
0019 - ingenic,jz4740-rtc
0020 - ingenic,jz4760-rtc
0021 - items:
0022 - const: ingenic,jz4725b-rtc
0023 - const: ingenic,jz4740-rtc
0024 - items:
0025 - enum:
0026 - ingenic,jz4770-rtc
0027 - ingenic,jz4780-rtc
0028 - const: ingenic,jz4760-rtc
0029
0030 reg:
0031 maxItems: 1
0032
0033 interrupts:
0034 maxItems: 1
0035
0036 clocks:
0037 maxItems: 1
0038
0039 clock-names:
0040 const: rtc
0041
0042 system-power-controller:
0043 description: |
0044 Indicates that the RTC is responsible for powering OFF
0045 the system.
0046 type: boolean
0047
0048 ingenic,reset-pin-assert-time-ms:
0049 minimum: 0
0050 maximum: 125
0051 default: 60
0052 description: |
0053 Reset pin low-level assertion time after wakeup
0054 (assuming RTC clock at 32 kHz)
0055
0056 ingenic,min-wakeup-pin-assert-time-ms:
0057 minimum: 0
0058 maximum: 2000
0059 default: 100
0060 description: |
0061 Minimum wakeup pin assertion time
0062 (assuming RTC clock at 32 kHz)
0063
0064 required:
0065 - compatible
0066 - reg
0067 - interrupts
0068 - clocks
0069 - clock-names
0070
0071 unevaluatedProperties: false
0072
0073 examples:
0074 - |
0075 #include <dt-bindings/clock/ingenic,jz4740-cgu.h>
0076 rtc_dev: rtc@10003000 {
0077 compatible = "ingenic,jz4740-rtc";
0078 reg = <0x10003000 0x40>;
0079
0080 interrupt-parent = <&intc>;
0081 interrupts = <15>;
0082
0083 clocks = <&cgu JZ4740_CLK_RTC>;
0084 clock-names = "rtc";
0085 };
