1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 # Copyright (C) 2015, 2024, Intel Corporation
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/altr,msi-controller.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
7
8 title: Altera PCIe MSI controller
9
10 maintainers:
11 - Matthew Gerlach <matthew.gerlach@linux.intel.com>
12
13 properties:
14 compatible:
15 enum:
16 - altr,msi-1.0
17
18 reg:
19 items:
20 - description: CSR registers
21 - description: Vectors slave port region
22
23 reg-names:
24 items:
25 - const: csr
26 - const: vector_slave
27
28 interrupts:
29 maxItems: 1
30
31 msi-controller: true
32
33 num-vectors:
34 description: number of vectors
35 $ref: /schemas/types.yaml#/definitions/uint32
36 minimum: 1
37 maximum: 32
38
39 required:
40 - compatible
41 - reg
42 - reg-names
43 - interrupts
44 - msi-controller
45 - num-vectors
46
47 allOf:
48 - $ref: /schemas/interrupt-controller/msi-controller.yaml#
49
50 unevaluatedProperties: false
51
52 examples:
53 - |
54 #include <dt-bindings/interrupt-controller/arm-gic.h>
55 #include <dt-bindings/interrupt-controller/irq.h>
56 msi@ff200000 {
57 compatible = "altr,msi-1.0";
58 reg = <0xff200000 0x00000010>,
59 <0xff200010 0x00000080>;
60 reg-names = "csr", "vector_slave";
61 interrupt-parent = <&hps_0_arm_gic_0>;
62 interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
63 msi-controller;
64 num-vectors = <32>;
65 };
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