mirror of https://gitee.com/openkylin/linux.git
113 lines
2.7 KiB
YAML
113 lines
2.7 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/bindings/clock/imx8mn-clock.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NXP i.MX8M Nano 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 Nano clock control module is an integrated clock controller, which
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generates and supplies to all modules.
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properties:
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compatible:
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const: fsl,imx8mn-ccm
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reg:
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maxItems: 1
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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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'#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/imx8mn-clock.h
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for the full list of i.MX8M Nano 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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examples:
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# Clock Control Module node:
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- |
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clk: clock-controller@30380000 {
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compatible = "fsl,imx8mn-ccm";
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reg = <0x0 0x30380000 0x0 0x10000>;
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#clock-cells = <1>;
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clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>,
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<&clk_ext2>, <&clk_ext3>, <&clk_ext4>;
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clock-names = "osc_32k", "osc_24m", "clk_ext1",
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"clk_ext2", "clk_ext3", "clk_ext4";
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};
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# Required external clocks for Clock Control Module node:
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- |
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osc_32k: clock-osc-32k {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <32768>;
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clock-output-names = "osc_32k";
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};
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osc_24m: clock-osc-24m {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <24000000>;
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clock-output-names = "osc_24m";
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};
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clk_ext1: clock-ext1 {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <133000000>;
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clock-output-names = "clk_ext1";
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};
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clk_ext2: clock-ext2 {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <133000000>;
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clock-output-names = "clk_ext2";
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};
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clk_ext3: clock-ext3 {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <133000000>;
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clock-output-names = "clk_ext3";
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};
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clk_ext4: clock-ext4 {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency= <133000000>;
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clock-output-names = "clk_ext4";
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};
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...
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