xref: /linux/Documentation/devicetree/bindings/serial/cdns,uart.yaml (revision 746680ec6696585e30db3e18c93a63df9cbec39c) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/serial/cdns,uart.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Cadence UART Controller
8
9maintainers:
10  - Michal Simek <michal.simek@amd.com>
11
12properties:
13  compatible:
14    oneOf:
15      - description: UART controller for Zynq-7xxx SoC
16        items:
17          - const: xlnx,xuartps
18          - const: cdns,uart-r1p8
19      - items:
20          - enum:
21              - axiado,ax3000-uart
22              - xlnx,zynqmp-uart
23          - const: cdns,uart-r1p12
24
25  reg:
26    maxItems: 1
27
28  interrupts:
29    maxItems: 1
30
31  clocks:
32    maxItems: 2
33
34  clock-names:
35    items:
36      - const: uart_clk
37      - const: pclk
38
39  cts-override:
40    description: |
41      Override the CTS modem status signal. This signal will
42      always be reported as active instead of being obtained
43      from the modem status register. Define this if your serial
44      port does not use this pin.
45    type: boolean
46
47  power-domains:
48    maxItems: 1
49
50  resets:
51    maxItems: 1
52
53required:
54  - compatible
55  - reg
56  - interrupts
57  - clocks
58  - clock-names
59
60allOf:
61  - $ref: serial.yaml#
62  - $ref: rs485.yaml#
63  - if:
64      properties:
65        compatible:
66          contains:
67            const: cdns,uart-r1p8
68    then:
69      properties:
70        power-domains: false
71
72unevaluatedProperties: false
73
74examples:
75  - |
76    uart0: serial@e0000000 {
77        compatible = "xlnx,xuartps", "cdns,uart-r1p8";
78        clocks = <&clkc 23>, <&clkc 40>;
79        clock-names = "uart_clk", "pclk";
80        reg = <0xe0000000 0x1000>;
81        interrupts = <0 27 4>;
82    };
83