63 lines
1.4 KiB
YAML
63 lines
1.4 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/clock/apple,nco.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Apple SoCs' NCO block
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maintainers:
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- Martin Povišer <povik+lin@cutebit.org>
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description: |
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The NCO (Numerically Controlled Oscillator) block found on Apple SoCs
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such as the t8103 (M1) is a programmable clock generator performing
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fractional division of a high frequency input clock.
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It carries a number of independent channels and is typically used for
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generation of audio bitclocks.
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properties:
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compatible:
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items:
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- enum:
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- apple,t6000-nco
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- apple,t8103-nco
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- const: apple,nco
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clocks:
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description:
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Specifies the reference clock from which the output clocks
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are derived through fractional division.
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maxItems: 1
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'#clock-cells':
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const: 1
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reg:
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maxItems: 1
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required:
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- compatible
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- clocks
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- '#clock-cells'
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- reg
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additionalProperties: false
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examples:
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- |
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nco_clkref: clock-ref {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <900000000>;
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clock-output-names = "nco-ref";
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};
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nco: clock-controller@23b044000 {
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compatible = "apple,t8103-nco", "apple,nco";
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reg = <0x3b044000 0x14000>;
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#clock-cells = <1>;
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clocks = <&nco_clkref>;
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};
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