126 lines
3.1 KiB
YAML
126 lines
3.1 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/clock/imx8m-clock.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NXP i.MX8M Family Clock Control Module Binding
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maintainers:
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- Anson Huang <Anson.Huang@nxp.com>
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description: |
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NXP i.MX8M Mini/Nano/Plus/Quad clock control module is an integrated clock
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controller, which generates and supplies to all modules.
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properties:
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compatible:
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enum:
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- fsl,imx8mm-ccm
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- fsl,imx8mn-ccm
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- fsl,imx8mp-ccm
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- fsl,imx8mq-ccm
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reg:
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maxItems: 1
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clocks:
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minItems: 6
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maxItems: 7
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clock-names:
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minItems: 6
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maxItems: 7
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'#clock-cells':
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const: 1
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description:
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The clock consumer should specify the desired clock by having the clock
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ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8m-clock.h
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for the full list of i.MX8M clock IDs.
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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- '#clock-cells'
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allOf:
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- if:
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properties:
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compatible:
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contains:
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const: fsl,imx8mq-ccm
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then:
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properties:
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clocks:
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minItems: 7
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maxItems: 7
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items:
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- description: 32k osc
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- description: 25m osc
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- description: 27m osc
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- description: ext1 clock input
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- description: ext2 clock input
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- description: ext3 clock input
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- description: ext4 clock input
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clock-names:
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minItems: 7
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maxItems: 7
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items:
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- const: ckil
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- const: osc_25m
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- const: osc_27m
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- const: clk_ext1
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- const: clk_ext2
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- const: clk_ext3
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- const: clk_ext4
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else:
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properties:
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clocks:
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items:
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- description: 32k osc
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- description: 24m osc
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- description: ext1 clock input
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- description: ext2 clock input
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- description: ext3 clock input
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- description: ext4 clock input
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clock-names:
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items:
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- const: osc_32k
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- const: osc_24m
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- const: clk_ext1
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- const: clk_ext2
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- const: clk_ext3
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- const: clk_ext4
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additionalProperties: false
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examples:
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# Clock Control Module node:
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- |
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clock-controller@30380000 {
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compatible = "fsl,imx8mm-ccm";
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reg = <0x30380000 0x10000>;
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#clock-cells = <1>;
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clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>, <&clk_ext2>,
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<&clk_ext3>, <&clk_ext4>;
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clock-names = "osc_32k", "osc_24m", "clk_ext1", "clk_ext2",
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"clk_ext3", "clk_ext4";
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};
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- |
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clock-controller@30390000 {
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compatible = "fsl,imx8mq-ccm";
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reg = <0x30380000 0x10000>;
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#clock-cells = <1>;
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clocks = <&ckil>, <&osc_25m>, <&osc_27m>, <&clk_ext1>,
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<&clk_ext2>, <&clk_ext3>, <&clk_ext4>;
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clock-names = "ckil", "osc_25m", "osc_27m", "clk_ext1",
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"clk_ext2", "clk_ext3", "clk_ext4";
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};
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...
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