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: Bindings for 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-delay: true
>> 74 rs485-rts-active-low: true
>> 75 rs485-rx-during-tx: true
73 rs485-rts-active-high: true 76 rs485-rts-active-high: true
>> 77 linux,rs485-enabled-at-boot-time: true
74 rts-gpio: true 78 rts-gpio: true
75 power-domains: true 79 power-domains: true
76 clock-frequency: true 80 clock-frequency: true
77 current-speed: true 81 current-speed: true
78 overrun-throttle-ms: true 82 overrun-throttle-ms: true
79 wakeup-source: true <<
80 83
81 required: 84 required:
82 - compatible 85 - compatible
83 - reg 86 - reg
84 - interrupts 87 - interrupts
85 88
86 unevaluatedProperties: false !! 89 additionalProperties: false
87 90
88 if: 91 if:
89 properties: 92 properties:
90 compatible: 93 compatible:
91 contains: 94 contains:
92 enum: 95 enum:
93 - ti,omap2-uart 96 - ti,omap2-uart
94 - ti,omap3-uart 97 - ti,omap3-uart
95 - ti,omap4-uart 98 - ti,omap4-uart
96 99
97 then: 100 then:
98 properties: 101 properties:
99 ti,hwmods: 102 ti,hwmods:
100 items: 103 items:
101 - pattern: "^uart([1-9])$" 104 - pattern: "^uart([1-9])$"
102 105
103 else: 106 else:
104 properties: 107 properties:
105 ti,hwmods: false 108 ti,hwmods: false
106 109
107 examples: 110 examples:
108 - | 111 - |
109 serial@49042000 { !! 112 serial@49042000 {
110 compatible = "ti,omap3-uart"; !! 113 compatible = "ti,omap3-uart";
111 reg = <0x49042000 0x400>; !! 114 reg = <0x49042000 0x400>;
112 interrupts = <80>; !! 115 interrupts = <80>;
113 dmas = <&sdma 81 &sdma 82>; !! 116 dmas = <&sdma 81 &sdma 82>;
114 dma-names = "tx", "rx"; !! 117 dma-names = "tx", "rx";
115 ti,hwmods = "uart4"; !! 118 ti,hwmods = "uart4";
116 clock-frequency = <48000000>; !! 119 clock-frequency = <48000000>;
117 }; !! 120 };
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