Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml

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Linux kernel
Corpus path
Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml
Extension
.yaml
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3968 bytes
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150
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/memory-controllers/renesas,rpc-if.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas Reduced Pin Count Interface (RPC-IF)

maintainers:
  - Sergei Shtylyov <sergei.shtylyov@gmail.com>

description: |
  Renesas RPC-IF allows a SPI flash or HyperFlash connected to the SoC to
  be accessed via the external address space read mode or the manual mode.

  The flash chip itself should be represented by a subnode of the RPC-IF node.
  The flash interface is selected based on the "compatible" property of this
  subnode:
  - if it contains "jedec,spi-nor", then SPI is used;
  - if it contains "cfi-flash", then HyperFlash is used.

allOf:
  - $ref: /schemas/spi/spi-controller.yaml#

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - renesas,r8a774a1-rpc-if       # RZ/G2M
              - renesas,r8a774b1-rpc-if       # RZ/G2N
              - renesas,r8a774c0-rpc-if       # RZ/G2E
              - renesas,r8a774e1-rpc-if       # RZ/G2H
              - renesas,r8a7795-rpc-if        # R-Car H3
              - renesas,r8a7796-rpc-if        # R-Car M3-W
              - renesas,r8a77961-rpc-if       # R-Car M3-W+
              - renesas,r8a77965-rpc-if       # R-Car M3-N
              - renesas,r8a77970-rpc-if       # R-Car V3M
              - renesas,r8a77980-rpc-if       # R-Car V3H
              - renesas,r8a77990-rpc-if       # R-Car E3
              - renesas,r8a77995-rpc-if       # R-Car D3
              - renesas,r8a779a0-rpc-if       # R-Car V3U
          - const: renesas,rcar-gen3-rpc-if   # a generic R-Car gen3 or RZ/G2{E,H,M,N} device

      - items:
          - enum:
              - renesas,r8a779g0-rpc-if       # R-Car V4H
              - renesas,r8a779h0-rpc-if       # R-Car V4M
          - const: renesas,rcar-gen4-rpc-if   # a generic R-Car gen4 device

      - items:
          - enum:
              - renesas,r9a07g043-rpc-if      # RZ/G2UL
              - renesas,r9a07g044-rpc-if      # RZ/G2{L,LC}
              - renesas,r9a07g054-rpc-if      # RZ/V2L
          - const: renesas,rzg2l-rpc-if

  reg:
    items:
      - description: RPC-IF registers
      - description: direct mapping read mode area
      - description: write buffer area

  reg-names:
    items:
      - const: regs
      - const: dirmap
      - const: wbuf

  clocks:

Annotation

Implementation Notes