renesas,rpc-if.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/memory-controllers/renesas,rpc-if.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Renesas Reduced Pin Count Interface (RPC-IF)
    8 
    9 maintainers:
   10   - Sergei Shtylyov <sergei.shtylyov@gmail.com>
   11 
   12 description: |
   13   Renesas RPC-IF allows a SPI flash or HyperFlash connected to the SoC to
   14   be accessed via the external address space read mode or the manual mode.
   15 
   16   The flash chip itself should be represented by a subnode of the RPC-IF node.
   17   The flash interface is selected based on the "compatible" property of this
   18   subnode:
   19   - if it contains "jedec,spi-nor", then SPI is used;
   20   - if it contains "cfi-flash", then HyperFlash is used.
   21 
   22 allOf:
   23   - $ref: "/schemas/spi/spi-controller.yaml#"
   24 
   25 properties:
   26   compatible:
   27     oneOf:
   28       - items:
   29           - enum:
   30               - renesas,r8a774a1-rpc-if       # RZ/G2M
   31               - renesas,r8a774b1-rpc-if       # RZ/G2N
   32               - renesas,r8a774c0-rpc-if       # RZ/G2E
   33               - renesas,r8a774e1-rpc-if       # RZ/G2H
   34               - renesas,r8a7795-rpc-if        # R-Car H3
   35               - renesas,r8a7796-rpc-if        # R-Car M3-W
   36               - renesas,r8a77961-rpc-if       # R-Car M3-W+
   37               - renesas,r8a77965-rpc-if       # R-Car M3-N
   38               - renesas,r8a77970-rpc-if       # R-Car V3M
   39               - renesas,r8a77980-rpc-if       # R-Car V3H
   40               - renesas,r8a77990-rpc-if       # R-Car E3
   41               - renesas,r8a77995-rpc-if       # R-Car D3
   42               - renesas,r8a779a0-rpc-if       # R-Car V3U
   43           - const: renesas,rcar-gen3-rpc-if   # a generic R-Car gen3 or RZ/G2{E,H,M,N} device
   44 
   45       - items:
   46           - enum:
   47               - renesas,r9a07g043-rpc-if      # RZ/G2UL
   48               - renesas,r9a07g044-rpc-if      # RZ/G2{L,LC}
   49               - renesas,r9a07g054-rpc-if      # RZ/V2L
   50           - const: renesas,rzg2l-rpc-if
   51 
   52   reg:
   53     items:
   54       - description: RPC-IF registers
   55       - description: direct mapping read mode area
   56       - description: write buffer area
   57 
   58   reg-names:
   59     items:
   60       - const: regs
   61       - const: dirmap
   62       - const: wbuf
   63 
   64   clocks: true
   65 
   66   interrupts:
   67     maxItems: 1
   68 
   69   power-domains:
   70     maxItems: 1
   71 
   72   resets:
   73     maxItems: 1
   74 
   75 patternProperties:
   76   "flash@[0-9a-f]+$":
   77     type: object
   78     properties:
   79       compatible:
   80         contains:
   81           enum:
   82             - cfi-flash
   83             - jedec,spi-nor
   84 
   85 required:
   86   - compatible
   87   - reg
   88   - reg-names
   89   - clocks
   90   - power-domains
   91   - resets
   92   - '#address-cells'
   93   - '#size-cells'
   94 
   95 if:
   96   properties:
   97     compatible:
   98       contains:
   99         enum:
  100           - renesas,rzg2l-rpc-if
  101 then:
  102   properties:
  103     clocks:
  104       items:
  105         - description: SPI Multi IO Register access clock (SPI_CLK2)
  106         - description: SPI Multi IO Main clock (SPI_CLK).
  107 
  108 else:
  109   properties:
  110     clocks:
  111       maxItems: 1
  112 
  113 unevaluatedProperties: false
  114 
  115 examples:
  116   - |
  117     #include <dt-bindings/clock/renesas-cpg-mssr.h>
  118     #include <dt-bindings/power/r8a77995-sysc.h>
  119 
  120     spi@ee200000 {
  121       compatible = "renesas,r8a77995-rpc-if", "renesas,rcar-gen3-rpc-if";
  122       reg = <0xee200000 0x200>,
  123             <0x08000000 0x4000000>,
  124             <0xee208000 0x100>;
  125       reg-names = "regs", "dirmap", "wbuf";
  126       clocks = <&cpg CPG_MOD 917>;
  127       power-domains = <&sysc R8A77995_PD_ALWAYS_ON>;
  128       resets = <&cpg 917>;
  129       #address-cells = <1>;
  130       #size-cells = <0>;
  131 
  132       flash@0 {
  133         compatible = "jedec,spi-nor";
  134         reg = <0>;
  135         spi-max-frequency = <40000000>;
  136         spi-tx-bus-width = <1>;
  137         spi-rx-bus-width = <1>;
  138       };
  139     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/memory-controllers/renesas,rpc-if.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/memory-controllers/renesas,rpc-if.yaml