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| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
| %YAML 1.2
| ---
| $id: http://devicetree.org/schemas/serial/fsl-imx-uart.yaml#
| $schema: http://devicetree.org/meta-schemas/core.yaml#
|
| title: Freescale i.MX Universal Asynchronous Receiver/Transmitter (UART)
|
| maintainers:
| - Fabio Estevam <fabio.estevam@nxp.com>
|
| allOf:
| - $ref: "serial.yaml"
| - $ref: "rs485.yaml"
|
| properties:
| compatible:
| oneOf:
| - const: fsl,imx1-uart
| - const: fsl,imx21-uart
| - items:
| - enum:
| - fsl,imx25-uart
| - fsl,imx27-uart
| - fsl,imx31-uart
| - fsl,imx35-uart
| - fsl,imx50-uart
| - fsl,imx51-uart
| - fsl,imx53-uart
| - fsl,imx6q-uart
| - const: fsl,imx21-uart
| - items:
| - enum:
| - fsl,imx6sl-uart
| - fsl,imx6sll-uart
| - fsl,imx6sx-uart
| - const: fsl,imx6q-uart
| - const: fsl,imx21-uart
| - items:
| - enum:
| - fsl,imx6ul-uart
| - fsl,imx7d-uart
| - fsl,imx8mm-uart
| - fsl,imx8mn-uart
| - fsl,imx8mp-uart
| - fsl,imx8mq-uart
| - const: fsl,imx6q-uart
|
| reg:
| maxItems: 1
|
| interrupts:
| maxItems: 1
|
| fsl,dte-mode:
| $ref: /schemas/types.yaml#/definitions/flag
| description: |
| Indicate the uart works in DTE mode. The uart works in DCE mode by default.
|
| fsl,inverted-tx:
| $ref: /schemas/types.yaml#/definitions/flag
| description: |
| Indicate that the hardware attached to the peripheral inverts the signal
| transmitted, and that the peripheral should invert its output using the
| INVT registers.
|
| fsl,inverted-rx:
| $ref: /schemas/types.yaml#/definitions/flag
| description: |
| Indicate that the hardware attached to the peripheral inverts the signal
| received, and that the peripheral should invert its input using the
| INVR registers.
|
| uart-has-rtscts: true
|
| rs485-rts-delay: true
| rs485-rts-active-low: true
| rs485-rx-during-tx: true
| linux,rs485-enabled-at-boot-time: true
|
| required:
| - compatible
| - reg
| - interrupts
|
| unevaluatedProperties: false
|
| examples:
| - |
| aliases {
| serial0 = &uart1;
| };
|
| uart1: serial@73fbc000 {
| compatible = "fsl,imx51-uart", "fsl,imx21-uart";
| reg = <0x73fbc000 0x4000>;
| interrupts = <31>;
| uart-has-rtscts;
| fsl,dte-mode;
| };
|
|
