Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml

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Linux kernel
Corpus path
Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml
Extension
.yaml
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4117 bytes
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142
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

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Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iommu/renesas,ipmmu-vmsa.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas VMSA-Compatible IOMMU

maintainers:
  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

description:
  The IPMMU is an IOMMU implementation compatible with the ARM VMSA page tables.
  It provides address translation for bus masters outside of the CPU, each
  connected to the IPMMU through a port called micro-TLB.

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - renesas,ipmmu-r8a73a4  # R-Mobile APE6
              - renesas,ipmmu-r8a7742  # RZ/G1H
              - renesas,ipmmu-r8a7743  # RZ/G1M
              - renesas,ipmmu-r8a7744  # RZ/G1N
              - renesas,ipmmu-r8a7745  # RZ/G1E
              - renesas,ipmmu-r8a7790  # R-Car H2
              - renesas,ipmmu-r8a7791  # R-Car M2-W
              - renesas,ipmmu-r8a7793  # R-Car M2-N
              - renesas,ipmmu-r8a7794  # R-Car E2
          - const: renesas,ipmmu-vmsa  # R-Mobile APE6 or R-Car Gen2 or RZ/G1

      - items:
          - enum:
              - renesas,ipmmu-r8a774a1 # RZ/G2M
              - renesas,ipmmu-r8a774b1 # RZ/G2N
              - renesas,ipmmu-r8a774c0 # RZ/G2E
              - renesas,ipmmu-r8a774e1 # RZ/G2H
              - renesas,ipmmu-r8a7795  # R-Car H3
              - renesas,ipmmu-r8a7796  # R-Car M3-W
              - renesas,ipmmu-r8a77961 # R-Car M3-W+
              - renesas,ipmmu-r8a77965 # R-Car M3-N
              - renesas,ipmmu-r8a77970 # R-Car V3M
              - renesas,ipmmu-r8a77980 # R-Car V3H
              - renesas,ipmmu-r8a77990 # R-Car E3
              - renesas,ipmmu-r8a77995 # R-Car D3

      - items:
          - enum:
              - renesas,ipmmu-r8a779a0           # R-Car V3U
              - renesas,ipmmu-r8a779f0           # R-Car S4-8
              - renesas,ipmmu-r8a779g0           # R-Car V4H
              - renesas,ipmmu-r8a779h0           # R-Car V4M
          - const: renesas,rcar-gen4-ipmmu-vmsa  # R-Car Gen4

  reg:
    maxItems: 1

  interrupts:
    minItems: 1
    description:
      Specifiers for the MMU fault interrupts. Not required for cache IPMMUs.
    items:
      - description: non-secure mode
      - description: secure mode if supported

  '#iommu-cells':
    const: 1
    description:
      The number of the micro-TLB that the device is connected to.

Annotation

Implementation Notes