Documentation/devicetree/bindings/net/stmmac.txt

   1 * STMicroelectronics 10/100/1000 Ethernet driver (GMAC)
   2
   3 Required properties:
   4 - compatible: Should be "snps,dwmac-<ip_version>" "snps,dwmac"
   5         For backwards compatibility: "st,spear600-gmac" is also supported.
   6 - reg: Address and length of the register set for the device
   7 - interrupt-parent: Should be the phandle for the interrupt controller
   8   that services interrupts for this device
   9 - interrupts: Should contain the STMMAC interrupts
  10 - interrupt-names: Should contain the interrupt names "macirq"
  11   "eth_wake_irq" if this interrupt is supported in the "interrupts"
  12   property
  13 - phy-mode: See ethernet.txt file in the same directory.
  14 - snps,reset-gpio       gpio number for phy reset.
  15 - snps,reset-active-low boolean flag to indicate if phy reset is active low.
  16 - snps,reset-delays-us  is triplet of delays
  17         The 1st cell is reset pre-delay in micro seconds.
  18         The 2nd cell is reset pulse in micro seconds.
  19         The 3rd cell is reset post-delay in micro seconds.
  20 - snps,pbl              Programmable Burst Length
  21 - snps,fixed-burst      Program the DMA to use the fixed burst mode
  22 - snps,mixed-burst      Program the DMA to use the mixed burst mode
  23 - snps,force_thresh_dma_mode    Force DMA to use the threshold mode for
  24                                 both tx and rx
  25 - snps,force_sf_dma_mode        Force DMA to use the Store and Forward
  26                                 mode for both tx and rx. This flag is
  27                                 ignored if force_thresh_dma_mode is set.
  28 - snps,multicast-filter-bins:   Number of multicast filter hash bins
  29                                 supported by this device instance
  30 - snps,perfect-filter-entries:  Number of perfect filter entries supported
  31                                 by this device instance
  32
  33 Optional properties:
  34 - resets: Should contain a phandle to the STMMAC reset signal, if any
  35 - reset-names: Should contain the reset signal name "stmmaceth", if a
  36         reset phandle is given
  37 - max-frame-size: See ethernet.txt file in the same directory
  38 - clocks: If present, the first clock should be the GMAC main clock,
  39   further clocks may be specified in derived bindings.
  40 - clock-names: One name for each entry in the clocks property, the
  41   first one should be "stmmaceth".
  42
  43 Examples:
  44
  45         gmac0: ethernet@e0800000 {
  46                 compatible = "st,spear600-gmac";
  47                 reg = <0xe0800000 0x8000>;
  48                 interrupt-parent = <&vic1>;
  49                 interrupts = <24 23>;
  50                 interrupt-names = "macirq", "eth_wake_irq";
  51                 mac-address = [000000000000]; /* Filled in by U-Boot */
  52                 max-frame-size = <3800>;
  53                 phy-mode = "gmii";
  54                 snps,multicast-filter-bins = <256>;
  55                 snps,perfect-filter-entries = <128>;
  56                 clocks = <&clock>;
  57                 clock-names = "stmmaceth";
  58         };