renesas,scif.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/serial/renesas,scif.yaml#"
    5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    6 
    7 title: Renesas Serial Communication Interface with FIFO (SCIF)
    8 
    9 maintainers:
   10   - Geert Uytterhoeven <geert+renesas@glider.be>
   11 
   12 allOf:
   13   - $ref: serial.yaml#
   14 
   15 properties:
   16   compatible:
   17     oneOf:
   18       - items:
   19           - enum:
   20               - renesas,scif-r7s72100     # RZ/A1H
   21           - const: renesas,scif           # generic SCIF compatible UART
   22 
   23       - items:
   24           - enum:
   25               - renesas,scif-r7s9210      # RZ/A2
   26 
   27       - items:
   28           - enum:
   29               - renesas,scif-r8a7778      # R-Car M1
   30               - renesas,scif-r8a7779      # R-Car H1
   31           - const: renesas,rcar-gen1-scif # R-Car Gen1
   32           - const: renesas,scif           # generic SCIF compatible UART
   33 
   34       - items:
   35           - enum:
   36               - renesas,scif-r8a7742      # RZ/G1H
   37               - renesas,scif-r8a7743      # RZ/G1M
   38               - renesas,scif-r8a7744      # RZ/G1N
   39               - renesas,scif-r8a7745      # RZ/G1E
   40               - renesas,scif-r8a77470     # RZ/G1C
   41               - renesas,scif-r8a7790      # R-Car H2
   42               - renesas,scif-r8a7791      # R-Car M2-W
   43               - renesas,scif-r8a7792      # R-Car V2H
   44               - renesas,scif-r8a7793      # R-Car M2-N
   45               - renesas,scif-r8a7794      # R-Car E2
   46           - const: renesas,rcar-gen2-scif # R-Car Gen2 and RZ/G1
   47           - const: renesas,scif           # generic SCIF compatible UART
   48 
   49       - items:
   50           - enum:
   51               - renesas,scif-r8a774a1     # RZ/G2M
   52               - renesas,scif-r8a774b1     # RZ/G2N
   53               - renesas,scif-r8a774c0     # RZ/G2E
   54               - renesas,scif-r8a774e1     # RZ/G2H
   55               - renesas,scif-r8a7795      # R-Car H3
   56               - renesas,scif-r8a7796      # R-Car M3-W
   57               - renesas,scif-r8a77961     # R-Car M3-W+
   58               - renesas,scif-r8a77965     # R-Car M3-N
   59               - renesas,scif-r8a77970     # R-Car V3M
   60               - renesas,scif-r8a77980     # R-Car V3H
   61               - renesas,scif-r8a77990     # R-Car E3
   62               - renesas,scif-r8a77995     # R-Car D3
   63           - const: renesas,rcar-gen3-scif # R-Car Gen3 and RZ/G2
   64           - const: renesas,scif           # generic SCIF compatible UART
   65 
   66       - items:
   67           - enum:
   68               - renesas,scif-r8a779a0     # R-Car V3U
   69               - renesas,scif-r8a779f0     # R-Car S4-8
   70           - const: renesas,rcar-gen4-scif # R-Car Gen4
   71           - const: renesas,scif           # generic SCIF compatible UART
   72 
   73       - items:
   74           - enum:
   75               - renesas,scif-r9a07g044      # RZ/G2{L,LC}
   76 
   77       - items:
   78           - enum:
   79               - renesas,scif-r9a07g043      # RZ/G2UL
   80               - renesas,scif-r9a07g054      # RZ/V2L
   81           - const: renesas,scif-r9a07g044   # RZ/G2{L,LC} fallback
   82 
   83   reg:
   84     maxItems: 1
   85 
   86   interrupts:
   87     oneOf:
   88       - items:
   89           - description: A combined interrupt
   90       - items:
   91           - description: Error interrupt
   92           - description: Receive buffer full interrupt
   93           - description: Transmit buffer empty interrupt
   94           - description: Transmit End interrupt
   95       - items:
   96           - description: Error interrupt
   97           - description: Receive buffer full interrupt
   98           - description: Transmit buffer empty interrupt
   99           - description: Break interrupt
  100           - description: Data Ready interrupt
  101           - description: Transmit End interrupt
  102 
  103   interrupt-names:
  104     oneOf:
  105       - items:
  106           - const: eri
  107           - const: rxi
  108           - const: txi
  109           - const: tei
  110       - items:
  111           - const: eri
  112           - const: rxi
  113           - const: txi
  114           - const: bri
  115           - const: dri
  116           - const: tei
  117 
  118   clocks:
  119     minItems: 1
  120     maxItems: 4
  121 
  122   clock-names:
  123     minItems: 1
  124     maxItems: 4
  125     items:
  126       enum:
  127         - fck # UART functional clock
  128         - sck # optional external clock input
  129         - brg_int # optional internal clock source for BRG frequency divider
  130         - scif_clk # optional external clock source for BRG frequency divider
  131 
  132   power-domains:
  133     maxItems: 1
  134 
  135   resets:
  136     maxItems: 1
  137 
  138   dmas:
  139     minItems: 2
  140     maxItems: 4
  141     description:
  142       Must contain a list of pairs of references to DMA specifiers, one for
  143       transmission, and one for reception.
  144 
  145   dma-names:
  146     minItems: 2
  147     maxItems: 4
  148     items:
  149       enum:
  150         - tx
  151         - rx
  152 
  153 required:
  154   - compatible
  155   - reg
  156   - interrupts
  157   - clocks
  158   - clock-names
  159   - power-domains
  160 
  161 if:
  162   properties:
  163     compatible:
  164       contains:
  165         enum:
  166           - renesas,rcar-gen2-scif
  167           - renesas,rcar-gen3-scif
  168           - renesas,rcar-gen4-scif
  169           - renesas,scif-r9a07g044
  170 then:
  171   required:
  172     - resets
  173 
  174 unevaluatedProperties: false
  175 
  176 examples:
  177   - |
  178     #include <dt-bindings/clock/r8a7791-cpg-mssr.h>
  179     #include <dt-bindings/interrupt-controller/arm-gic.h>
  180     #include <dt-bindings/power/r8a7791-sysc.h>
  181     aliases {
  182             serial0 = &scif0;
  183     };
  184 
  185     scif0: serial@e6e60000 {
  186             compatible = "renesas,scif-r8a7791", "renesas,rcar-gen2-scif",
  187                          "renesas,scif";
  188             reg = <0xe6e60000 64>;
  189             interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
  190             clocks = <&cpg CPG_MOD 721>, <&cpg CPG_CORE R8A7791_CLK_ZS>,
  191                      <&scif_clk>;
  192             clock-names = "fck", "brg_int", "scif_clk";
  193             dmas = <&dmac0 0x29>, <&dmac0 0x2a>, <&dmac1 0x29>, <&dmac1 0x2a>;
  194             dma-names = "tx", "rx", "tx", "rx";
  195             power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
  196             resets = <&cpg 721>;
  197     };

Cache object: 0845e8ee49b4c62eb51e16c286b85fa0

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sys/contrib/device-tree/Bindings/serial/renesas,scif.yaml