mmio.yaml

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    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 
    7 title: virtio memory mapped devices
    8 
    9 maintainers:
   10   - Jean-Philippe Brucker <jean-philippe@linaro.org>
   11 
   12 description:
   13   See https://www.oasis-open.org/committees/tc_home.php?wg_abbrev=virtio for
   14   more details.
   15 
   16 properties:
   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 
   36   wakeup-source:
   37     type: boolean
   38     description: Required for setting irq of a virtio_mmio device as wakeup source.
   39 
   40 required:
   41   - compatible
   42   - reg
   43   - interrupts
   44 
   45 additionalProperties:
   46   type: object
   47 
   48 examples:
   49   - |
   50     virtio@3000 {
   51         compatible = "virtio,mmio";
   52         reg = <0x3000 0x100>;
   53         interrupts = <41>;
   54 
   55         /* Device has endpoint ID 23 */
   56         iommus = <&viommu 23>;
   57     };
   58 
   59     viommu: iommu@3100 {
   60         compatible = "virtio,mmio";
   61         reg = <0x3100 0x100>;
   62         interrupts = <42>;
   63 
   64         #iommu-cells = <1>;
   65     };
   66 
   67 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/virtio/mmio.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/virtio/mmio.yaml