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/fsl,ls-msi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Freescale Layerscape SCFG PCIe MSI controller
8
9 description: |
10 This interrupt controller hardware is a second level interrupt controller that
11 is hooked to a parent interrupt controller: e.g: ARM GIC for ARM-based
12 platforms. If interrupt-parent is not provided, the default parent interrupt
13 controller will be used.
14
15 Each PCIe node needs to have property msi-parent that points to
16 MSI controller node
17
18 maintainers:
19 - Frank Li <Frank.Li@nxp.com>
20
21 properties:
22 compatible:
23 enum:
24 - fsl,ls1012a-msi
25 - fsl,ls1021a-msi
26 - fsl,ls1043a-msi
27 - fsl,ls1043a-v1.1-msi
28 - fsl,ls1046a-msi
29
30 reg:
31 maxItems: 1
32
33 '#msi-cells':
34 const: 1
35
36 interrupts:
37 items:
38 - description: Shared MSI interrupt group 0
39 - description: Shared MSI interrupt group 1
40 - description: Shared MSI interrupt group 2
41 - description: Shared MSI interrupt group 3
42 minItems: 1
43
44 required:
45 - compatible
46 - reg
47 - msi-controller
48 - interrupts
49
50 allOf:
51 - $ref: msi-controller.yaml
52 - if:
53 properties:
54 compatible:
55 contains:
56 enum:
57 - fsl,ls1046a-msi
58 then:
59 properties:
60 interrupts:
61 minItems: 4
62 else:
63 properties:
64 interrupts:
65 maxItems: 1
66
67 unevaluatedProperties: false
68
69 examples:
70 - |
71 #include <dt-bindings/interrupt-controller/arm-gic.h>
72
73 interrupt-controller@1571000 {
74 compatible = "fsl,ls1043a-msi";
75 reg = <0x1571000 0x8>;
76 msi-controller;
77 #msi-cells = <1>;
78 interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
79 };
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