xref: /freebsd/sys/contrib/device-tree/Bindings/serial/fsl-mxs-auart.yaml (revision 84943d6f38e936ac3b7a3947ca26eeb27a39f938) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/serial/fsl-mxs-auart.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale MXS Application UART (AUART)
8
9maintainers:
10  - Fabio Estevam <festevam@gmail.com>
11
12allOf:
13  - $ref: serial.yaml#
14
15properties:
16  compatible:
17    oneOf:
18      - const: fsl,imx23-auart
19      - const: alphascale,asm9260-auart
20      - items:
21          - enum:
22              - fsl,imx28-auart
23          - const: fsl,imx23-auart
24
25  reg:
26    maxItems: 1
27
28  interrupts:
29    maxItems: 1
30
31  dmas:
32    items:
33      - description: DMA controller phandle and request line for RX
34      - description: DMA controller phandle and request line for TX
35
36  dma-names:
37    items:
38      - const: rx
39      - const: tx
40
41  clocks:
42    items:
43      - description: mod clock
44      - description: ahb clock
45    minItems: 1
46
47  clock-names:
48    items:
49      - const: mod
50      - const: ahb
51    minItems: 1
52
53  uart-has-rtscts: true
54  rts-gpios: true
55  cts-gpios: true
56  dtr-gpios: true
57  dsr-gpios: true
58  rng-gpios: true
59  dcd-gpios: true
60
61if:
62  properties:
63    compatible:
64      contains:
65        enum:
66          - alphascale,asm9260-auart
67then:
68  required:
69    - clocks
70    - clock-names
71
72required:
73  - compatible
74  - reg
75  - interrupts
76  - dmas
77  - dma-names
78
79unevaluatedProperties: false
80
81examples:
82  - |
83    aliases {
84        serial0 = &auart0;
85    };
86
87    auart0: serial@8006a000 {
88        compatible = "fsl,imx28-auart", "fsl,imx23-auart";
89        reg = <0x8006a000 0x2000>;
90        interrupts = <112>;
91        dmas = <&dma_apbx 8>, <&dma_apbx 9>;
92        dma-names = "rx", "tx";
93        clocks = <&clks 45>;
94    };
95