rockchip-dwmac.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-dwmac.yaml#"
    5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    6 
    7 title: Rockchip 10/100/1000 Ethernet driver(GMAC)
    8 
    9 maintainers:
   10   - David Wu <david.wu@rock-chips.com>
   11 
   12 # We need a select here so we don't match all nodes with 'snps,dwmac'
   13 select:
   14   properties:
   15     compatible:
   16       contains:
   17         enum:
   18           - rockchip,px30-gmac
   19           - rockchip,rk3128-gmac
   20           - rockchip,rk3228-gmac
   21           - rockchip,rk3288-gmac
   22           - rockchip,rk3308-gmac
   23           - rockchip,rk3328-gmac
   24           - rockchip,rk3366-gmac
   25           - rockchip,rk3368-gmac
   26           - rockchip,rk3399-gmac
   27           - rockchip,rk3568-gmac
   28           - rockchip,rv1108-gmac
   29   required:
   30     - compatible
   31 
   32 allOf:
   33   - $ref: "snps,dwmac.yaml#"
   34 
   35 properties:
   36   compatible:
   37     oneOf:
   38       - items:
   39           - enum:
   40               - rockchip,px30-gmac
   41               - rockchip,rk3128-gmac
   42               - rockchip,rk3228-gmac
   43               - rockchip,rk3288-gmac
   44               - rockchip,rk3308-gmac
   45               - rockchip,rk3328-gmac
   46               - rockchip,rk3366-gmac
   47               - rockchip,rk3368-gmac
   48               - rockchip,rk3399-gmac
   49               - rockchip,rv1108-gmac
   50       - items:
   51           - enum:
   52               - rockchip,rk3568-gmac
   53           - const: snps,dwmac-4.20a
   54 
   55   clocks:
   56     minItems: 5
   57     maxItems: 8
   58 
   59   clock-names:
   60     contains:
   61       enum:
   62         - stmmaceth
   63         - mac_clk_tx
   64         - mac_clk_rx
   65         - aclk_mac
   66         - pclk_mac
   67         - clk_mac_ref
   68         - clk_mac_refout
   69         - clk_mac_speed
   70 
   71   clock_in_out:
   72     description:
   73       For RGMII, it must be "input", means main clock(125MHz)
   74       is not sourced from SoC's PLL, but input from PHY.
   75       For RMII, "input" means PHY provides the reference clock(50MHz),
   76       "output" means GMAC provides the reference clock.
   77     $ref: /schemas/types.yaml#/definitions/string
   78     enum: [input, output]
   79 
   80   rockchip,grf:
   81     description: The phandle of the syscon node for the general register file.
   82     $ref: /schemas/types.yaml#/definitions/phandle
   83 
   84   tx_delay:
   85     description: Delay value for TXD timing. Range value is 0~0x7F, 0x30 as default.
   86     $ref: /schemas/types.yaml#/definitions/uint32
   87 
   88   rx_delay:
   89     description: Delay value for RXD timing. Range value is 0~0x7F, 0x10 as default.
   90     $ref: /schemas/types.yaml#/definitions/uint32
   91 
   92   phy-supply:
   93     description: PHY regulator
   94 
   95 required:
   96   - compatible
   97   - clocks
   98   - clock-names
   99 
  100 unevaluatedProperties: false
  101 
  102 examples:
  103   - |
  104     #include <dt-bindings/interrupt-controller/arm-gic.h>
  105     #include <dt-bindings/clock/rk3288-cru.h>
  106 
  107     gmac: ethernet@ff290000 {
  108         compatible = "rockchip,rk3288-gmac";
  109         reg = <0xff290000 0x10000>;
  110         interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
  111         interrupt-names = "macirq";
  112         clocks = <&cru SCLK_MAC>,
  113                  <&cru SCLK_MAC_RX>, <&cru SCLK_MAC_TX>,
  114                  <&cru SCLK_MACREF>, <&cru SCLK_MACREF_OUT>,
  115                  <&cru ACLK_GMAC>, <&cru PCLK_GMAC>;
  116         clock-names = "stmmaceth",
  117                       "mac_clk_rx", "mac_clk_tx",
  118                       "clk_mac_ref", "clk_mac_refout",
  119                       "aclk_mac", "pclk_mac";
  120         assigned-clocks = <&cru SCLK_MAC>;
  121         assigned-clock-parents = <&ext_gmac>;
  122 
  123         rockchip,grf = <&grf>;
  124         phy-mode = "rgmii";
  125         clock_in_out = "input";
  126         tx_delay = <0x30>;
  127         rx_delay = <0x10>;
  128     };

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