1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/serial/ingenic,uart.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Ingenic SoCs UART controller
8
9 maintainers:
10 - Paul Cercueil <paul@crapouillou.net>
11
12 allOf:
13 - $ref: serial.yaml#
14
15 properties:
16 $nodename:
17 pattern: "^serial@[0-9a-f]+$"
18
19 compatible:
20 oneOf:
21 - enum:
22 - ingenic,jz4740-uart
23 - ingenic,jz4750-uart
24 - ingenic,jz4760-uart
25 - ingenic,jz4780-uart
26 - ingenic,x1000-uart
27 - items:
28 - enum:
29 - ingenic,jz4770-uart
30 - ingenic,jz4775-uart
31 - const: ingenic,jz4760-uart
32 - items:
33 - const: ingenic,jz4725b-uart
34 - const: ingenic,jz4740-uart
35 - items:
36 - const: ingenic,jz4755-uart
37 - const: ingenic,jz4750-uart
38
39 reg:
40 maxItems: 1
41
42 interrupts:
43 maxItems: 1
44
45 clocks:
46 items:
47 - description: Baud clock
48 - description: UART module clock
49
50 clock-names:
51 items:
52 - const: baud
53 - const: module
54
55 dmas:
56 items:
57 - description: DMA controller phandle and request line for RX
58 - description: DMA controller phandle and request line for TX
59
60 dma-names:
61 items:
62 - const: rx
63 - const: tx
64
65 required:
66 - compatible
67 - reg
68 - interrupts
69 - clocks
70 - clock-names
71 - dmas
72 - dma-names
73
74 unevaluatedProperties: false
75
76 examples:
77 - |
78 #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
79 #include <dt-bindings/dma/jz4780-dma.h>
80 #include <dt-bindings/gpio/gpio.h>
81 serial@10032000 {
82 compatible = "ingenic,jz4780-uart";
83 reg = <0x10032000 0x100>;
84
85 interrupt-parent = <&intc>;
86 interrupts = <49>;
87
88 clocks = <&ext>, <&cgu JZ4780_CLK_UART2>;
89 clock-names = "baud", "module";
90
91 dmas = <&dma JZ4780_DMA_UART2_RX 0xffffffff>,
92 <&dma JZ4780_DMA_UART2_TX 0xffffffff>;
93 dma-names = "rx", "tx";
94
95 bluetooth {
96 compatible = "brcm,bcm4330-bt";
97 reset-gpios = <&gpf 8 GPIO_ACTIVE_HIGH>;
98 vbat-supply = <&wlan0_power>;
99 device-wakeup-gpios = <&gpf 5 GPIO_ACTIVE_HIGH>;
100 host-wakeup-gpios = <&gpf 6 GPIO_ACTIVE_HIGH>;
101 shutdown-gpios = <&gpf 4 GPIO_ACTIVE_LOW>;
102 };
103 };
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