| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/i2c/i2c-mpc.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: I2C-Bus adapter for MPC824x/83xx/85xx/86xx/512x/52xx SoCs |
| |
| maintainers: |
| - Chris Packham <chris.packham@alliedtelesis.co.nz> |
| |
| allOf: |
| - $ref: /schemas/i2c/i2c-controller.yaml# |
| |
| properties: |
| compatible: |
| oneOf: |
| - items: |
| - enum: |
| - mpc5200-i2c |
| - fsl,mpc5200-i2c |
| - fsl,mpc5121-i2c |
| - fsl,mpc8313-i2c |
| - fsl,mpc8543-i2c |
| - fsl,mpc8544-i2c |
| - const: fsl-i2c |
| - items: |
| - const: fsl,mpc5200b-i2c |
| - const: fsl,mpc5200-i2c |
| - const: fsl-i2c |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| fsl,preserve-clocking: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: | |
| if defined, the clock settings from the bootloader are |
| preserved (not touched) |
| |
| fsl,timeout: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| deprecated: true |
| description: | |
| I2C bus timeout in microseconds |
| |
| fsl,i2c-erratum-a004447: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: | |
| Indicates the presence of QorIQ erratum A-004447, which |
| says that the standard i2c recovery scheme mechanism does |
| not work and an alternate implementation is needed. |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| /* MPC5121 based board */ |
| i2c@1740 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| compatible = "fsl,mpc5121-i2c", "fsl-i2c"; |
| reg = <0x1740 0x20>; |
| interrupts = <11 0x8>; |
| interrupt-parent = <&ipic>; |
| clock-frequency = <100000>; |
| }; |
| |
| - | |
| /* MPC5200B based board */ |
| i2c@3d00 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| compatible = "fsl,mpc5200b-i2c", "fsl,mpc5200-i2c", "fsl-i2c"; |
| reg = <0x3d00 0x40>; |
| interrupts = <2 15 0>; |
| interrupt-parent = <&mpc5200_pic>; |
| fsl,preserve-clocking; |
| }; |
| |
| - | |
| /* MPC8544 base board */ |
| i2c@3100 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| compatible = "fsl,mpc8544-i2c", "fsl-i2c"; |
| reg = <0x3100 0x100>; |
| interrupts = <43 2>; |
| interrupt-parent = <&mpic>; |
| clock-frequency = <400000>; |
| i2c-transfer-timeout-us = <10000>; |
| }; |
| ... |
