1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/bus/palmbus.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Ralink PalmBus
8
9 maintainers:
10 - Sergio Paracuellos <sergio.paracuellos@gmail.com>
11
12 description: |
13 The ralink palmbus controller can be found in all ralink MIPS
14 SoCs. It provides an external bus for connecting multiple
15 external devices to the SoC.
16
17 properties:
18 $nodename:
19 pattern: "^palmbus(@[0-9a-f]+)?$"
20
21 "#address-cells":
22 const: 1
23
24 "#size-cells":
25 const: 1
26
27 compatible:
28 const: palmbus
29
30 reg:
31 maxItems: 1
32
33 ranges: true
34
35 patternProperties:
36 # All other properties should be child nodes with unit-address and 'reg'
37 "@[0-9a-f]+$":
38 type: object
39 additionalProperties: true
40 properties:
41 reg:
42 maxItems: 1
43
44 required:
45 - reg
46
47 required:
48 - compatible
49 - reg
50 - "#address-cells"
51 - "#size-cells"
52 - ranges
53
54 additionalProperties: false
55
56 examples:
57 - |
58 #include <dt-bindings/interrupt-controller/mips-gic.h>
59 #include <dt-bindings/interrupt-controller/irq.h>
60 palmbus@1e000000 {
61 compatible = "palmbus";
62 reg = <0x1e000000 0x100000>;
63 #address-cells = <1>;
64 #size-cells = <1>;
65 ranges = <0x0 0x1e000000 0x0fffff>;
66
67 gpio@600 {
68 #gpio-cells = <2>;
69 #interrupt-cells = <2>;
70 compatible = "mediatek,mt7621-gpio";
71 gpio-controller;
72 gpio-ranges = <&pinctrl 0 0 95>;
73 interrupt-controller;
74 reg = <0x600 0x100>;
75 interrupt-parent = <&gic>;
76 interrupts = <GIC_SHARED 12 IRQ_TYPE_LEVEL_HIGH>;
77 };
78 };
79
80 ...
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