196 lines
4.0 KiB
YAML
196 lines
4.0 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/rtc/allwinner,sun6i-a31-rtc.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Allwinner A31 RTC
|
|
|
|
maintainers:
|
|
- Chen-Yu Tsai <wens@csie.org>
|
|
- Maxime Ripard <mripard@kernel.org>
|
|
|
|
properties:
|
|
"#clock-cells":
|
|
const: 1
|
|
|
|
compatible:
|
|
oneOf:
|
|
- enum:
|
|
- allwinner,sun6i-a31-rtc
|
|
- allwinner,sun8i-a23-rtc
|
|
- allwinner,sun8i-h3-rtc
|
|
- allwinner,sun8i-r40-rtc
|
|
- allwinner,sun8i-v3-rtc
|
|
- allwinner,sun50i-h5-rtc
|
|
- allwinner,sun50i-h6-rtc
|
|
- allwinner,sun50i-h616-rtc
|
|
- allwinner,sun50i-r329-rtc
|
|
- items:
|
|
- const: allwinner,sun50i-a64-rtc
|
|
- const: allwinner,sun8i-h3-rtc
|
|
- items:
|
|
- const: allwinner,sun20i-d1-rtc
|
|
- const: allwinner,sun50i-r329-rtc
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
minItems: 1
|
|
items:
|
|
- description: RTC Alarm 0
|
|
- description: RTC Alarm 1
|
|
|
|
clocks:
|
|
minItems: 1
|
|
maxItems: 4
|
|
|
|
clock-names:
|
|
minItems: 1
|
|
maxItems: 4
|
|
|
|
clock-output-names:
|
|
minItems: 1
|
|
maxItems: 3
|
|
description:
|
|
The RTC provides up to three clocks
|
|
- the Low Frequency Oscillator or LOSC, at index 0,
|
|
- the Low Frequency Oscillator External output (X32KFOUT in
|
|
the datasheet), at index 1,
|
|
- the Internal Oscillator, at index 2.
|
|
|
|
allOf:
|
|
- $ref: rtc.yaml#
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: allwinner,sun6i-a31-rtc
|
|
|
|
then:
|
|
properties:
|
|
clock-output-names:
|
|
maxItems: 1
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- allwinner,sun8i-a23-rtc
|
|
- allwinner,sun8i-r40-rtc
|
|
- allwinner,sun8i-v3-rtc
|
|
|
|
then:
|
|
properties:
|
|
clock-output-names:
|
|
minItems: 2
|
|
maxItems: 2
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- allwinner,sun8i-h3-rtc
|
|
- allwinner,sun50i-h5-rtc
|
|
- allwinner,sun50i-h6-rtc
|
|
|
|
then:
|
|
properties:
|
|
clock-output-names:
|
|
minItems: 3
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: allwinner,sun50i-h616-rtc
|
|
|
|
then:
|
|
properties:
|
|
clocks:
|
|
items:
|
|
- description: Bus clock for register access
|
|
- description: 24 MHz oscillator
|
|
- description: 32 kHz clock from the CCU
|
|
|
|
clock-names:
|
|
items:
|
|
- const: bus
|
|
- const: hosc
|
|
- const: pll-32k
|
|
|
|
required:
|
|
- clocks
|
|
- clock-names
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: allwinner,sun50i-r329-rtc
|
|
|
|
then:
|
|
properties:
|
|
clocks:
|
|
minItems: 3
|
|
items:
|
|
- description: Bus clock for register access
|
|
- description: 24 MHz oscillator
|
|
- description: AHB parent for internal SPI clock
|
|
- description: External 32768 Hz oscillator
|
|
|
|
clock-names:
|
|
minItems: 3
|
|
items:
|
|
- const: bus
|
|
- const: hosc
|
|
- const: ahb
|
|
- const: ext-osc32k
|
|
|
|
required:
|
|
- clocks
|
|
- clock-names
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- allwinner,sun8i-r40-rtc
|
|
- allwinner,sun50i-h616-rtc
|
|
- allwinner,sun50i-r329-rtc
|
|
|
|
then:
|
|
properties:
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
else:
|
|
properties:
|
|
interrupts:
|
|
minItems: 2
|
|
|
|
required:
|
|
- "#clock-cells"
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
rtc: rtc@1f00000 {
|
|
compatible = "allwinner,sun6i-a31-rtc";
|
|
reg = <0x01f00000 0x400>;
|
|
interrupts = <0 40 4>, <0 41 4>;
|
|
clock-output-names = "osc32k";
|
|
clocks = <&ext_osc32k>;
|
|
#clock-cells = <1>;
|
|
};
|
|
|
|
...
|