xref: /freebsd/sys/contrib/device-tree/Bindings/serial/fsl-mxs-auart.yaml (revision 84943d6f38e936ac3b7a3947ca26eeb27a39f938)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/serial/fsl-mxs-auart.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale MXS Application UART (AUART)

maintainers:
  - Fabio Estevam <festevam@gmail.com>

allOf:
  - $ref: serial.yaml#

properties:
  compatible:
    oneOf:
      - const: fsl,imx23-auart
      - const: alphascale,asm9260-auart
      - items:
          - enum:
              - fsl,imx28-auart
          - const: fsl,imx23-auart

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  dmas:
    items:
      - description: DMA controller phandle and request line for RX
      - description: DMA controller phandle and request line for TX

  dma-names:
    items:
      - const: rx
      - const: tx

  clocks:
    items:
      - description: mod clock
      - description: ahb clock
    minItems: 1

  clock-names:
    items:
      - const: mod
      - const: ahb
    minItems: 1

  uart-has-rtscts: true
  rts-gpios: true
  cts-gpios: true
  dtr-gpios: true
  dsr-gpios: true
  rng-gpios: true
  dcd-gpios: true

if:
  properties:
    compatible:
      contains:
        enum:
          - alphascale,asm9260-auart
then:
  required:
    - clocks
    - clock-names

required:
  - compatible
  - reg
  - interrupts
  - dmas
  - dma-names

unevaluatedProperties: false

examples:
  - |
    aliases {
        serial0 = &auart0;
    };

    auart0: serial@8006a000 {
        compatible = "fsl,imx28-auart", "fsl,imx23-auart";
        reg = <0x8006a000 0x2000>;
        interrupts = <112>;
        dmas = <&dma_apbx 8>, <&dma_apbx 9>;
        dma-names = "rx", "tx";
        clocks = <&clks 45>;
    };