1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/serial/8250_omap.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: 8250 compliant UARTs on TI's OMAP2+ and K3 SoCs
8
9 maintainers:
10 - Vignesh Raghavendra <vigneshr@ti.com>
11
12 allOf:
13 - $ref: /schemas/serial/serial.yaml#
14 - $ref: /schemas/serial/rs485.yaml#
15
16 properties:
17 compatible:
18 oneOf:
19 - enum:
20 - ti,am3352-uart
21 - ti,am4372-uart
22 - ti,am654-uart
23 - ti,dra742-uart
24 - ti,omap2-uart
25 - ti,omap3-uart
26 - ti,omap4-uart
27 - items:
28 - enum:
29 - ti,am64-uart
30 - ti,j721e-uart
31 - const: ti,am654-uart
32
33 ti,hwmods:
34 description:
35 Must be "uart<n>", n being the instance number (1-based)
36 This property is applicable only on legacy platforms mainly omap2/3
37 and ti81xx and should not be used on other platforms.
38 $ref: /schemas/types.yaml#/definitions/string
39 deprecated: true
40
41 dmas:
42 minItems: 1
43 maxItems: 2
44
45 dma-names:
46 items:
47 - const: tx
48 - const: rx
49
50 reg:
51 maxItems: 1
52
53 interrupts:
54 minItems: 1
55 maxItems: 2
56 description:
57 First entry is module IRQ required for normal IO operation.
58 Second entry is optional and corresponds to system wakeup IRQ
59 where supported.
60
61 clocks:
62 maxItems: 1
63
64 clock-names:
65 const: fclk
66
67 rts-gpios: true
68 cts-gpios: true
69 dtr-gpios: true
70 dsr-gpios: true
71 rng-gpios: true
72 dcd-gpios: true
73 rs485-rts-active-high: true
74 rts-gpio: true
75 power-domains: true
76 clock-frequency: true
77 current-speed: true
78 overrun-throttle-ms: true
79 wakeup-source: true
80
81 required:
82 - compatible
83 - reg
84 - interrupts
85
86 unevaluatedProperties: false
87
88 if:
89 properties:
90 compatible:
91 contains:
92 enum:
93 - ti,omap2-uart
94 - ti,omap3-uart
95 - ti,omap4-uart
96
97 then:
98 properties:
99 ti,hwmods:
100 items:
101 - pattern: "^uart([1-9])$"
102
103 else:
104 properties:
105 ti,hwmods: false
106
107 examples:
108 - |
109 serial@49042000 {
110 compatible = "ti,omap3-uart";
111 reg = <0x49042000 0x400>;
112 interrupts = <80>;
113 dmas = <&sdma 81 &sdma 82>;
114 dma-names = "tx", "rx";
115 ti,hwmods = "uart4";
116 clock-frequency = <48000000>;
117 };
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