Documentation/devicetree/bindings/net/meson-dwmac.txt

   1 * Amlogic Meson DWMAC Ethernet controller
   2
   3 The device inherits all the properties of the dwmac/stmmac devices
   4 described in the file stmmac.txt in the current directory with the
   5 following changes.
   6
   7 Required properties on all platforms:
   8
   9 - compatible:   Depending on the platform this should be one of:
  10                         - "amlogic,meson6-dwmac"
  11                         - "amlogic,meson8b-dwmac"
  12                         - "amlogic,meson-gxbb-dwmac"
  13                         - "amlogic,meson-axg-dwmac"
  14                 Additionally "snps,dwmac" and any applicable more
  15                 detailed version number described in net/stmmac.txt
  16                 should be used.
  17
  18 - reg:  The first register range should be the one of the DWMAC
  19         controller. The second range is is for the Amlogic specific
  20         configuration (for example the PRG_ETHERNET register range
  21         on Meson8b and newer)
  22
  23 Required properties on Meson8b and newer:
  24 - clock-names:  Should contain the following:
  25                 - "stmmaceth" - see stmmac.txt
  26                 - "clkin0" - first parent clock of the internal mux
  27                 - "clkin1" - second parent clock of the internal mux
  28
  29
  30 Example for Meson6:
  31
  32         ethmac: ethernet@c9410000 {
  33                 compatible = "amlogic,meson6-dwmac", "snps,dwmac";
  34                 reg = <0xc9410000 0x10000
  35                        0xc1108108 0x4>;
  36                 interrupts = <0 8 1>;
  37                 interrupt-names = "macirq";
  38                 clocks = <&clk81>;
  39                 clock-names = "stmmaceth";
  40         }
  41
  42 Example for GXBB:
  43         ethmac: ethernet@c9410000 {
  44                 compatible = "amlogic,meson-gxbb-dwmac", "snps,dwmac";
  45                 reg = <0x0 0xc9410000 0x0 0x10000>,
  46                         <0x0 0xc8834540 0x0 0x8>;
  47                 interrupts = <0 8 1>;
  48                 interrupt-names = "macirq";
  49                 clocks = <&clkc CLKID_ETH>,
  50                                 <&clkc CLKID_FCLK_DIV2>,
  51                                 <&clkc CLKID_MPLL2>;
  52                 clock-names = "stmmaceth", "clkin0", "clkin1";
  53                 phy-mode = "rgmii";
  54                 status = "disabled";
  55         };