renesas,hscif.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,hscif.yaml#"
    5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    6 
    7 title: Renesas High Speed Serial Communication Interface with FIFO (HSCIF)
    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,hscif-r8a7778      # R-Car M1
   21               - renesas,hscif-r8a7779      # R-Car H1
   22           - const: renesas,rcar-gen1-hscif # R-Car Gen1
   23           - const: renesas,hscif           # generic HSCIF compatible UART
   24 
   25       - items:
   26           - enum:
   27               - renesas,hscif-r8a7742      # RZ/G1H
   28               - renesas,hscif-r8a7743      # RZ/G1M
   29               - renesas,hscif-r8a7744      # RZ/G1N
   30               - renesas,hscif-r8a7745      # RZ/G1E
   31               - renesas,hscif-r8a77470     # RZ/G1C
   32               - renesas,hscif-r8a7790      # R-Car H2
   33               - renesas,hscif-r8a7791      # R-Car M2-W
   34               - renesas,hscif-r8a7792      # R-Car V2H
   35               - renesas,hscif-r8a7793      # R-Car M2-N
   36               - renesas,hscif-r8a7794      # R-Car E2
   37           - const: renesas,rcar-gen2-hscif # R-Car Gen2 and RZ/G1
   38           - const: renesas,hscif           # generic HSCIF compatible UART
   39 
   40       - items:
   41           - enum:
   42               - renesas,hscif-r8a774a1     # RZ/G2M
   43               - renesas,hscif-r8a774b1     # RZ/G2N
   44               - renesas,hscif-r8a774c0     # RZ/G2E
   45               - renesas,hscif-r8a774e1     # RZ/G2H
   46               - renesas,hscif-r8a7795      # R-Car H3
   47               - renesas,hscif-r8a7796      # R-Car M3-W
   48               - renesas,hscif-r8a77961     # R-Car M3-W+
   49               - renesas,hscif-r8a77965     # R-Car M3-N
   50               - renesas,hscif-r8a77970     # R-Car V3M
   51               - renesas,hscif-r8a77980     # R-Car V3H
   52               - renesas,hscif-r8a77990     # R-Car E3
   53               - renesas,hscif-r8a77995     # R-Car D3
   54           - const: renesas,rcar-gen3-hscif # R-Car Gen3 and RZ/G2
   55           - const: renesas,hscif           # generic HSCIF compatible UART
   56 
   57       - items:
   58           - enum:
   59               - renesas,hscif-r8a779a0     # R-Car V3U
   60               - renesas,hscif-r8a779f0     # R-Car S4-8
   61               - renesas,hscif-r8a779g0     # R-Car V4H
   62           - const: renesas,rcar-gen4-hscif # R-Car Gen4
   63           - const: renesas,hscif           # generic HSCIF compatible UART
   64 
   65   reg:
   66     maxItems: 1
   67 
   68   interrupts:
   69     maxItems: 1
   70 
   71   clocks:
   72     minItems: 1
   73     maxItems: 4
   74 
   75   clock-names:
   76     minItems: 1
   77     maxItems: 4
   78     items:
   79       enum:
   80         - fck # UART functional clock
   81         - hsck # optional external clock input
   82         - brg_int # optional internal clock source for BRG frequency divider
   83         - scif_clk # optional external clock source for BRG frequency divider
   84 
   85   power-domains:
   86     maxItems: 1
   87 
   88   resets:
   89     maxItems: 1
   90 
   91   dmas:
   92     minItems: 2
   93     maxItems: 4
   94     description:
   95       Must contain a list of pairs of references to DMA specifiers, one for
   96       transmission, and one for reception.
   97 
   98   dma-names:
   99     minItems: 2
  100     maxItems: 4
  101     items:
  102       enum:
  103         - tx
  104         - rx
  105 
  106 required:
  107   - compatible
  108   - reg
  109   - interrupts
  110   - clocks
  111   - clock-names
  112   - power-domains
  113 
  114 unevaluatedProperties: false
  115 
  116 if:
  117   properties:
  118     compatible:
  119       contains:
  120         enum:
  121           - renesas,rcar-gen2-hscif
  122           - renesas,rcar-gen3-hscif
  123           - renesas,rcar-gen4-hscif
  124 then:
  125   required:
  126     - resets
  127 
  128 examples:
  129   - |
  130     #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
  131     #include <dt-bindings/interrupt-controller/arm-gic.h>
  132     #include <dt-bindings/power/r8a7795-sysc.h>
  133     aliases {
  134             serial1 = &hscif1;
  135     };
  136 
  137     hscif1: serial@e6550000 {
  138             compatible = "renesas,hscif-r8a7795", "renesas,rcar-gen3-hscif",
  139                          "renesas,hscif";
  140             reg = <0xe6550000 96>;
  141             interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>;
  142             clocks = <&cpg CPG_MOD 519>, <&cpg CPG_CORE R8A7795_CLK_S3D1>,
  143                      <&scif_clk>;
  144             clock-names = "fck", "brg_int", "scif_clk";
  145             dmas = <&dmac1 0x33>, <&dmac1 0x32>, <&dmac2 0x33>, <&dmac2 0x32>;
  146             dma-names = "tx", "rx", "tx", "rx";
  147             power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
  148             resets = <&cpg 519>;
  149             uart-has-rtscts;
  150     };

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