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