1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 # Copyright 2019 Unisoc Inc. 2 # Copyright 2019 Unisoc Inc.
3 %YAML 1.2 3 %YAML 1.2
4 --- 4 ---
5 $id: http://devicetree.org/schemas/serial/sprd 5 $id: http://devicetree.org/schemas/serial/sprd-uart.yaml#
6 $schema: http://devicetree.org/meta-schemas/co 6 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 7
8 title: Spreadtrum serial UART 8 title: Spreadtrum serial UART
9 9
10 maintainers: 10 maintainers:
11 - Orson Zhai <orsonzhai@gmail.com> 11 - Orson Zhai <orsonzhai@gmail.com>
12 - Baolin Wang <baolin.wang7@gmail.com> 12 - Baolin Wang <baolin.wang7@gmail.com>
13 - Chunyan Zhang <zhang.lyra@gmail.com> 13 - Chunyan Zhang <zhang.lyra@gmail.com>
14 14
15 properties: 15 properties:
16 compatible: 16 compatible:
17 oneOf: 17 oneOf:
18 - items: 18 - items:
19 - enum: 19 - enum:
20 - sprd,sc9860-uart 20 - sprd,sc9860-uart
21 - sprd,sc9863a-uart 21 - sprd,sc9863a-uart
22 - sprd,ums512-uart 22 - sprd,ums512-uart
23 - sprd,ums9620-uart 23 - sprd,ums9620-uart
24 - const: sprd,sc9836-uart 24 - const: sprd,sc9836-uart
25 - const: sprd,sc9836-uart 25 - const: sprd,sc9836-uart
26 26
27 reg: 27 reg:
28 maxItems: 1 28 maxItems: 1
29 29
30 interrupts: 30 interrupts:
31 maxItems: 1 31 maxItems: 1
32 32
33 clocks: 33 clocks:
34 minItems: 1 34 minItems: 1
35 maxItems: 3 35 maxItems: 3
36 36
37 clock-names: 37 clock-names:
38 description: | 38 description: |
39 "enable" for UART module enable clock, " 39 "enable" for UART module enable clock, "uart" for UART clock, "source"
40 for UART source (parent) clock. 40 for UART source (parent) clock.
41 items: 41 items:
42 - const: enable 42 - const: enable
43 - const: uart 43 - const: uart
44 - const: source 44 - const: source
45 45
46 dmas: 46 dmas:
47 minItems: 1 47 minItems: 1
48 maxItems: 2 48 maxItems: 2
49 49
50 dma-names: 50 dma-names:
51 minItems: 1 51 minItems: 1
52 items: 52 items:
53 - const: rx 53 - const: rx
54 - const: tx 54 - const: tx
55 55
56 required: 56 required:
57 - compatible 57 - compatible
58 - reg 58 - reg
59 - interrupts 59 - interrupts
60 60
61 additionalProperties: false 61 additionalProperties: false
62 62
63 examples: 63 examples:
64 - | 64 - |
65 #include <dt-bindings/interrupt-controller 65 #include <dt-bindings/interrupt-controller/arm-gic.h>
66 serial@0 { 66 serial@0 {
67 compatible = "sprd,sc9860-uart", "sprd,s 67 compatible = "sprd,sc9860-uart", "sprd,sc9836-uart";
68 reg = <0x0 0x100>; 68 reg = <0x0 0x100>;
69 interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_H 69 interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
70 dma-names = "rx", "tx"; 70 dma-names = "rx", "tx";
71 dmas = <&ap_dma 19>, <&ap_dma 20>; 71 dmas = <&ap_dma 19>, <&ap_dma 20>;
72 clock-names = "enable", "uart", "source" 72 clock-names = "enable", "uart", "source";
73 clocks = <&clk_ap_apb_gates 9>, <&clk_ua 73 clocks = <&clk_ap_apb_gates 9>, <&clk_uart0>, <&ext_26m>;
74 }; 74 };
75 75
76 ... 76 ...
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