xref: /linux/Documentation/devicetree/bindings/interrupt-controller/marvell,cp110-icu.yaml (revision bf373e4c786bfe989e637195252698f45b157a68) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/interrupt-controller/marvell,cp110-icu.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7maintainers:
8  - Miquel Raynal <miquel.raynal@bootlin.com>
9  - Thomas Petazzoni <thomas.petazzoni@bootlin.com>
10
11title: Marvell ICU Interrupt Controller
12
13description:
14  The Marvell ICU (Interrupt Consolidation Unit) controller is responsible for
15  collecting all wired-interrupt sources in the CP and communicating them to the
16  GIC in the AP. The unit translates interrupt requests on input wires to MSG
17  memory mapped transactions to the GIC. These messages access different GIC
18  memory areas depending on their type (NSR, SR, SEI, REI, etc).
19
20properties:
21  compatible:
22    const: marvell,cp110-icu
23
24  reg:
25    maxItems: 1
26
27  '#address-cells':
28    const: 1
29
30  '#size-cells':
31    const: 1
32
33  ranges: true
34
35patternProperties:
36  "^interrupt-controller@":
37    type: object
38    description: Interrupt group child nodes
39    additionalProperties: false
40
41    properties:
42      compatible:
43        enum:
44          - marvell,cp110-icu-nsr
45          - marvell,cp110-icu-sr
46          - marvell,cp110-icu-sei
47          - marvell,cp110-icu-rei
48
49      reg:
50        maxItems: 1
51
52      '#interrupt-cells':
53        const: 2
54
55      interrupt-controller: true
56
57      msi-parent:
58        maxItems: 1
59        description: Phandle to the GICP controller
60
61    required:
62      - compatible
63      - reg
64      - '#interrupt-cells'
65      - interrupt-controller
66      - msi-parent
67
68required:
69  - compatible
70  - reg
71
72additionalProperties: false
73
74examples:
75  - |
76    interrupt-controller@1e0000 {
77        compatible = "marvell,cp110-icu";
78        reg = <0x1e0000 0x440>;
79        #address-cells = <1>;
80        #size-cells = <1>;
81        ranges;
82
83        interrupt-controller@10 {
84                compatible = "marvell,cp110-icu-nsr";
85                reg = <0x10 0x20>;
86                #interrupt-cells = <2>;
87                interrupt-controller;
88                msi-parent = <&gicp>;
89        };
90
91        interrupt-controller@50 {
92                compatible = "marvell,cp110-icu-sei";
93                reg = <0x50 0x10>;
94                #interrupt-cells = <2>;
95                interrupt-controller;
96                msi-parent = <&sei>;
97        };
98    };
99