cortina,gemini-sata-bridge.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/ata/cortina,gemini-sata-bridge.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Cortina Systems Gemini SATA Bridge
    8 
    9 maintainers:
   10   - Linus Walleij <linus.walleij@linaro.org>
   11 
   12 description: |
   13     The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
   14     takes two Faraday Technology FTIDE010 PATA controllers and bridges
   15     them in different configurations to two SATA ports.
   16 
   17 properties:
   18   compatible:
   19     const: cortina,gemini-sata-bridge
   20 
   21   reg:
   22     maxItems: 1
   23 
   24   resets:
   25     minItems: 2
   26     maxItems: 2
   27     description: phandles to the reset lines for both SATA bridges
   28 
   29   reset-names:
   30     items:
   31       - const: sata0
   32       - const: sata1
   33 
   34   clocks:
   35     minItems: 2
   36     maxItems: 2
   37     description: phandles to the compulsory peripheral clocks
   38 
   39   clock-names:
   40     items:
   41       - const: SATA0_PCLK
   42       - const: SATA1_PCLK
   43 
   44   syscon:
   45     $ref: /schemas/types.yaml#/definitions/phandle
   46     description: a phandle to the global Gemini system controller
   47 
   48   cortina,gemini-ata-muxmode:
   49     $ref: /schemas/types.yaml#/definitions/uint32
   50     enum:
   51       - 0
   52       - 1
   53       - 2
   54       - 3
   55     description: |
   56       Tell the desired multiplexing mode for the ATA controller and SATA
   57       bridges.
   58       Mode 0: ata0 master <-> sata0
   59               ata1 master <-> sata1
   60               ata0 slave interface brought out on IDE pads
   61       Mode 1: ata0 master <-> sata0
   62               ata1 master <-> sata1
   63               ata1 slave interface brought out on IDE pads
   64       Mode 2: ata1 master <-> sata1
   65               ata1 slave  <-> sata0
   66               ata0 master and slave interfaces brought out on IDE pads
   67       Mode 3: ata0 master <-> sata0
   68               ata0 slave  <-> sata1
   69               ata1 master and slave interfaces brought out on IDE pads
   70 
   71   cortina,gemini-enable-ide-pins:
   72     type: boolean
   73     description: Enables the PATA to IDE connection.
   74       The muxmode setting decides whether ATA0 or ATA1 is brought out,
   75       and whether master, slave or both interfaces get brought out.
   76 
   77   cortina,gemini-enable-sata-bridge:
   78     type: boolean
   79     description: Enables the PATA to SATA bridge inside the Gemnini SoC.
   80       The Muxmode decides what PATA blocks will be muxed out and how.
   81 
   82 required:
   83   - clocks
   84   - clock-names
   85   - cortina,gemini-ata-muxmode
   86   - resets
   87   - reset-names
   88   - compatible
   89   - reg
   90   - syscon
   91 
   92 additionalProperties: false
   93 
   94 examples:
   95   - |
   96     #include <dt-bindings/clock/cortina,gemini-clock.h>
   97     sata@46000000 {
   98       compatible = "cortina,gemini-sata-bridge";
   99       reg = <0x46000000 0x100>;
  100       resets = <&rcon 26>, <&rcon 27>;
  101       reset-names = "sata0", "sata1";
  102       clocks = <&gcc GEMINI_CLK_GATE_SATA0>,
  103                <&gcc GEMINI_CLK_GATE_SATA1>;
  104       clock-names = "SATA0_PCLK", "SATA1_PCLK";
  105       syscon = <&syscon>;
  106       cortina,gemini-ata-muxmode = <3>;
  107       cortina,gemini-enable-ide-pins;
  108       cortina,gemini-enable-sata-bridge;
  109     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/ata/cortina,gemini-sata-bridge.yaml

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sys/contrib/device-tree/Bindings/ata/cortina,gemini-sata-bridge.yaml