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