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100 lines
2.4 KiB
100 lines
2.4 KiB
# 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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$id: http://devicetree.org/schemas/i2c/i2c-mpc.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: I2C-Bus adapter for MPC824x/83xx/85xx/86xx/512x/52xx SoCs |
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maintainers: |
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- Chris Packham <[email protected]> |
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allOf: |
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- $ref: /schemas/i2c/i2c-controller.yaml# |
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properties: |
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compatible: |
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oneOf: |
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- items: |
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- enum: |
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- mpc5200-i2c |
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- fsl,mpc5200-i2c |
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- fsl,mpc5121-i2c |
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- fsl,mpc8313-i2c |
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- fsl,mpc8543-i2c |
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- fsl,mpc8544-i2c |
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- const: fsl-i2c |
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- items: |
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- const: fsl,mpc5200b-i2c |
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- const: fsl,mpc5200-i2c |
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- const: fsl-i2c |
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reg: |
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maxItems: 1 |
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interrupts: |
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maxItems: 1 |
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fsl,preserve-clocking: |
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$ref: /schemas/types.yaml#/definitions/flag |
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description: | |
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if defined, the clock settings from the bootloader are |
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preserved (not touched) |
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fsl,timeout: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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description: | |
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I2C bus timeout in microseconds |
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fsl,i2c-erratum-a004447: |
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$ref: /schemas/types.yaml#/definitions/flag |
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description: | |
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Indicates the presence of QorIQ erratum A-004447, which |
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says that the standard i2c recovery scheme mechanism does |
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not work and an alternate implementation is needed. |
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required: |
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- compatible |
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- reg |
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- interrupts |
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unevaluatedProperties: false |
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examples: |
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- | |
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/* MPC5121 based board */ |
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i2c@1740 { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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compatible = "fsl,mpc5121-i2c", "fsl-i2c"; |
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reg = <0x1740 0x20>; |
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interrupts = <11 0x8>; |
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interrupt-parent = <&ipic>; |
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clock-frequency = <100000>; |
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}; |
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- | |
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/* MPC5200B based board */ |
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i2c@3d00 { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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compatible = "fsl,mpc5200b-i2c", "fsl,mpc5200-i2c", "fsl-i2c"; |
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reg = <0x3d00 0x40>; |
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interrupts = <2 15 0>; |
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interrupt-parent = <&mpc5200_pic>; |
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fsl,preserve-clocking; |
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}; |
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- | |
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/* MPC8544 base board */ |
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i2c@3100 { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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compatible = "fsl,mpc8544-i2c", "fsl-i2c"; |
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reg = <0x3100 0x100>; |
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interrupts = <43 2>; |
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interrupt-parent = <&mpic>; |
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clock-frequency = <400000>; |
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fsl,timeout = <10000>; |
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}; |
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...
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