rockchip,emac.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/net/rockchip,emac.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Rockchip RK3036/RK3066/RK3188 Ethernet Media Access Controller (EMAC)
    8 
    9 maintainers:
   10   - Heiko Stuebner <heiko@sntech.de>
   11 
   12 properties:
   13   compatible:
   14     enum:
   15       - rockchip,rk3036-emac
   16       - rockchip,rk3066-emac
   17       - rockchip,rk3188-emac
   18 
   19   reg:
   20     maxItems: 1
   21 
   22   interrupts:
   23     maxItems: 1
   24 
   25   clocks:
   26     minItems: 2
   27     items:
   28       - description: host clock
   29       - description: reference clock
   30       - description: mac TX/RX clock
   31 
   32   clock-names:
   33     minItems: 2
   34     items:
   35       - const: hclk
   36       - const: macref
   37       - const: macclk
   38 
   39   rockchip,grf:
   40     $ref: /schemas/types.yaml#/definitions/phandle
   41     description:
   42       Phandle to the syscon GRF used to control speed and mode for the EMAC.
   43 
   44   phy-supply:
   45     description:
   46       Phandle to a regulator if the PHY needs one.
   47 
   48   mdio:
   49     $ref: mdio.yaml#
   50     unevaluatedProperties: false
   51 
   52 required:
   53   - compatible
   54   - reg
   55   - interrupts
   56   - clocks
   57   - clock-names
   58   - rockchip,grf
   59   - phy
   60   - phy-mode
   61   - mdio
   62 
   63 allOf:
   64   - $ref: "ethernet-controller.yaml#"
   65   - if:
   66       properties:
   67         compatible:
   68           contains:
   69             const: rockchip,rk3036-emac
   70 
   71     then:
   72       properties:
   73         clocks:
   74           minItems: 3
   75 
   76         clock-names:
   77           minItems: 3
   78 
   79     else:
   80       properties:
   81         clocks:
   82           maxItems: 2
   83 
   84         clock-names:
   85           maxItems: 2
   86 
   87 unevaluatedProperties: false
   88 
   89 examples:
   90   - |
   91     #include <dt-bindings/clock/rk3188-cru-common.h>
   92     #include <dt-bindings/interrupt-controller/arm-gic.h>
   93 
   94     ethernet@10204000 {
   95       compatible = "rockchip,rk3188-emac";
   96       reg = <0xc0fc2000 0x3c>;
   97       interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
   98       clocks = <&cru HCLK_EMAC>, <&cru SCLK_MAC>;
   99       clock-names = "hclk", "macref";
  100       rockchip,grf = <&grf>;
  101       pinctrl-0 = <&emac_xfer>, <&emac_mdio>, <&phy_int>;
  102       pinctrl-names = "default";
  103       phy = <&phy0>;
  104       phy-mode = "rmii";
  105       phy-supply = <&vcc_rmii>;
  106 
  107       mdio {
  108         #address-cells = <1>;
  109         #size-cells = <0>;
  110 
  111         phy0: ethernet-phy@0 {
  112           reg = <1>;
  113         };
  114       };
  115     };

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