1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/virtio/mmio 4 $id: http://devicetree.org/schemas/virtio/mmio.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: virtio memory mapped devices 7 title: virtio memory mapped devices
8 8
9 maintainers: 9 maintainers:
10 - Jean-Philippe Brucker <jean-philippe@linaro 10 - Jean-Philippe Brucker <jean-philippe@linaro.org>
11 11
12 description: 12 description:
13 See https://www.oasis-open.org/committees/tc 13 See https://www.oasis-open.org/committees/tc_home.php?wg_abbrev=virtio for
14 more details. 14 more details.
15 15
16 properties: 16 properties:
17 compatible: 17 compatible:
18 const: virtio,mmio 18 const: virtio,mmio
19 19
20 reg: 20 reg:
21 maxItems: 1 21 maxItems: 1
22 22
23 dma-coherent: true <<
24 <<
25 interrupts: 23 interrupts:
26 maxItems: 1 24 maxItems: 1
27 25
28 '#iommu-cells': 26 '#iommu-cells':
29 description: Required when the node corres 27 description: Required when the node corresponds to a virtio-iommu device.
30 const: 1 28 const: 1
31 29
32 iommus: 30 iommus:
33 description: Required for devices making a 31 description: Required for devices making accesses thru an IOMMU.
34 maxItems: 1 32 maxItems: 1
35 <<
36 wakeup-source: <<
37 type: boolean <<
38 description: Required for setting irq of a <<
39 33
40 required: 34 required:
41 - compatible 35 - compatible
42 - reg 36 - reg
43 - interrupts 37 - interrupts
44 38
45 additionalProperties: 39 additionalProperties:
46 type: object 40 type: object
47 41
48 examples: 42 examples:
49 - | 43 - |
50 virtio@3000 { 44 virtio@3000 {
51 compatible = "virtio,mmio"; 45 compatible = "virtio,mmio";
52 reg = <0x3000 0x100>; 46 reg = <0x3000 0x100>;
53 interrupts = <41>; 47 interrupts = <41>;
54 48
55 /* Device has endpoint ID 23 */ 49 /* Device has endpoint ID 23 */
56 iommus = <&viommu 23>; 50 iommus = <&viommu 23>;
57 }; 51 };
58 52
59 viommu: iommu@3100 { 53 viommu: iommu@3100 {
60 compatible = "virtio,mmio"; 54 compatible = "virtio,mmio";
61 reg = <0x3100 0x100>; 55 reg = <0x3100 0x100>;
62 interrupts = <42>; 56 interrupts = <42>;
63 57
64 #iommu-cells = <1>; 58 #iommu-cells = <1>;
65 }; 59 };
66 60
67 ... 61 ...
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