xref: /freebsd-src/sys/contrib/device-tree/Bindings/serial/cdns,uart.yaml (revision 354d7675fe12ace9cde344cb79c7ded792802f88)

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

title: Cadence UART Controller Device Tree Bindings

maintainers:
  - Michal Simek <michal.simek@xilinx.com>

allOf:
  - $ref: /schemas/serial.yaml#

properties:
  compatible:
    oneOf:
      - description: UART controller for Zynq-7xxx SoC
        items:
          - const: xlnx,xuartps
          - const: cdns,uart-r1p8
      - description: UART controller for Zynq Ultrascale+ MPSoC
        items:
          - const: xlnx,zynqmp-uart
          - const: cdns,uart-r1p12

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 2

  clock-names:
    items:
      - const: uart_clk
      - const: pclk

  cts-override:
    description: |
      Override the CTS modem status signal. This signal will
      always be reported as active instead of being obtained
      from the modem status register. Define this if your serial
      port does not use this pin.
    type: boolean

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

unevaluatedProperties: false

examples:
  - |
    uart0: serial@e0000000 {
      compatible = "xlnx,xuartps", "cdns,uart-r1p8";
      clocks = <&clkc 23>, <&clkc 40>;
      clock-names = "uart_clk", "pclk";
      reg = <0xE0000000 0x1000>;
      interrupts = <0 27 4>;
    };