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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/allwinner,sun55i-a523-ccu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Allwinner A523 Clock Control Unit
maintainers:
- Andre Przywara <andre.przywara@arm.com>
properties:
"#clock-cells":
const: 1
"#reset-cells":
const: 1
compatible:
enum:
- allwinner,sun55i-a523-ccu
- allwinner,sun55i-a523-r-ccu
reg:
maxItems: 1
clocks:
minItems: 4
maxItems: 5
clock-names:
minItems: 4
maxItems: 5
required:
- "#clock-cells"
- "#reset-cells"
- compatible
- reg
- clocks
- clock-names
allOf:
- if:
properties:
compatible:
enum:
- allwinner,sun55i-a523-ccu
then:
properties:
clocks:
items:
- description: High Frequency Oscillator (usually at 24MHz)
- description: Low Frequency Oscillator (usually at 32kHz)
- description: Internal Oscillator
- description: Low Frequency Oscillator fanout
clock-names:
items:
- const: hosc
- const: losc
- const: iosc
- const: losc-fanout
- if:
properties:
compatible:
enum:
- allwinner,sun55i-a523-r-ccu
then:
properties:
clocks:
items:
- description: High Frequency Oscillator (usually at 24MHz)
- description: Low Frequency Oscillator (usually at 32kHz)
- description: Internal Oscillator
- description: Peripherals PLL
- description: Audio PLL
clock-names:
items:
- const: hosc
- const: losc
- const: iosc
- const: pll-periph
- const: pll-audio
additionalProperties: false
examples:
- |
clock-controller@2001000 {
compatible = "allwinner,sun55i-a523-ccu";
reg = <0x02001000 0x1000>;
clocks = <&osc24M>, <&osc32k>, <&iosc>, <&r_ccu 1>;
clock-names = "hosc", "losc", "iosc", "losc-fanout";
#clock-cells = <1>;
#reset-cells = <1>;
};
...
|
