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
7 title: Freescale MXS Application UART (AUART)
8
9 maintainers:
10 - Fabio Estevam <festevam@gmail.com>
11
12 allOf:
13 - $ref: serial.yaml#
14
15 properties:
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
61 if:
62 properties:
63 compatible:
64 contains:
65 enum:
66 - alphascale,asm9260-auart
67 then:
68 required:
69 - clocks
70 - clock-names
71
72 required:
73 - compatible
74 - reg
75 - interrupts
76 - dmas
77 - dma-names
78
79 unevaluatedProperties: false
80
81 examples:
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 };
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