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 devicetree bindings
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,jz4760-uart
24 - ingenic,jz4780-uart
25 - ingenic,x1000-uart
26 - items:
27 - enum:
28 - ingenic,jz4770-uart
29 - ingenic,jz4775-uart
30 - const: ingenic,jz4760-uart
31 - items:
32 - const: ingenic,jz4725b-uart
33 - const: ingenic,jz4740-uart
34
35 reg:
36 maxItems: 1
37
38 interrupts:
39 maxItems: 1
40
41 clocks:
42 items:
43 - description: Baud clock
44 - description: UART module clock
45
46 clock-names:
47 items:
48 - const: baud
49 - const: module
50
51 dmas:
52 items:
53 - description: DMA controller phandle and request line for RX
54 - description: DMA controller phandle and request line for TX
55
56 dma-names:
57 items:
58 - const: rx
59 - const: tx
60
61 required:
62 - compatible
63 - reg
64 - interrupts
65 - clocks
66 - clock-names
67 - dmas
68 - dma-names
69
70 unevaluatedProperties: false
71
72 examples:
73 - |
74 #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
75 #include <dt-bindings/dma/jz4780-dma.h>
76 #include <dt-bindings/gpio/gpio.h>
77 serial@10032000 {
78 compatible = "ingenic,jz4780-uart";
79 reg = <0x10032000 0x100>;
80
81 interrupt-parent = <&intc>;
82 interrupts = <49>;
83
84 clocks = <&ext>, <&cgu JZ4780_CLK_UART2>;
85 clock-names = "baud", "module";
86
87 dmas = <&dma JZ4780_DMA_UART2_RX 0xffffffff>,
88 <&dma JZ4780_DMA_UART2_TX 0xffffffff>;
89 dma-names = "rx", "tx";
90
91 bluetooth {
92 compatible = "brcm,bcm4330-bt";
93 reset-gpios = <&gpf 8 GPIO_ACTIVE_HIGH>;
94 vbat-supply = <&wlan0_power>;
95 device-wakeup-gpios = <&gpf 5 GPIO_ACTIVE_HIGH>;
96 host-wakeup-gpios = <&gpf 6 GPIO_ACTIVE_HIGH>;
97 shutdown-gpios = <&gpf 4 GPIO_ACTIVE_LOW>;
98 };
99 };
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