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