socionext,uniphier-sd.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/mmc/socionext,uniphier-sd.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: UniPhier SD/SDIO/eMMC controller
    8 
    9 maintainers:
   10   - Masahiro Yamada <yamada.masahiro@socionext.com>
   11 
   12 properties:
   13   compatible:
   14     description: version 2.91, 3.1, 3.1.1, respectively
   15     enum:
   16       - socionext,uniphier-sd-v2.91
   17       - socionext,uniphier-sd-v3.1
   18       - socionext,uniphier-sd-v3.1.1
   19 
   20   reg:
   21     maxItems: 1
   22 
   23   interrupts:
   24     maxItems: 1
   25 
   26   clocks:
   27     maxItems: 1
   28 
   29   dmas:
   30     maxItems: 1
   31 
   32   dma-names:
   33     const: rx-tx
   34 
   35   reset-names:
   36     description: |
   37       There are three reset signals at maximum
   38         host:   mandatory for all variants
   39         bridge: exist only for version 2.91
   40         hw:     optional. exist if eMMC hw reset line is available
   41     oneOf:
   42       - const: host
   43       - items:
   44           - const: host
   45           - const: bridge
   46       - items:
   47           - const: host
   48           - const: hw
   49       - items:
   50           - const: host
   51           - const: bridge
   52           - const: hw
   53 
   54   resets:
   55     minItems: 1
   56     maxItems: 3
   57 
   58 allOf:
   59   - $ref: mmc-controller.yaml
   60 
   61   - if:
   62       properties:
   63         compatible:
   64           contains:
   65             const: socionext,uniphier-sd-v2.91
   66     then:
   67       properties:
   68         reset-names:
   69           contains:
   70             const: bridge
   71     else:
   72       properties:
   73         reset-names:
   74           not:
   75             contains:
   76               const: bridge
   77 
   78 required:
   79   - compatible
   80   - reg
   81   - interrupts
   82   - clocks
   83   - reset-names
   84   - resets
   85 
   86 unevaluatedProperties: false
   87 
   88 examples:
   89   - |
   90     sd: mmc@5a400000 {
   91         compatible = "socionext,uniphier-sd-v2.91";
   92         reg = <0x5a400000 0x200>;
   93         interrupts = <0 76 4>;
   94         pinctrl-names = "default", "uhs";
   95         pinctrl-0 = <&pinctrl_sd>;
   96         pinctrl-1 = <&pinctrl_sd_uhs>;
   97         clocks = <&mio_clk 0>;
   98         reset-names = "host", "bridge";
   99         resets = <&mio_rst 0>, <&mio_rst 3>;
  100         dma-names = "rx-tx";
  101         dmas = <&dmac 4>;
  102         bus-width = <4>;
  103         cap-sd-highspeed;
  104         sd-uhs-sdr12;
  105         sd-uhs-sdr25;
  106         sd-uhs-sdr50;
  107     };

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sys/contrib/device-tree/Bindings/mmc/socionext,uniphier-sd.yaml