Documentation/devicetree/bindings/net/renesas,ravb.txt

   1 * Renesas Electronics Ethernet AVB
   2
   3 This file provides information on what the device node for the Ethernet AVB
   4 interface contains.
   5
   6 Required properties:
   7 - compatible: "renesas,etheravb-r8a7790" if the device is a part of R8A7790 SoC.
   8               "renesas,etheravb-r8a7794" if the device is a part of R8A7794 SoC.
   9               "renesas,etheravb-r8a7795" if the device is a part of R8A7795 SoC.
  10               "renesas,etheravb-rcar-gen2" for generic R-Car Gen 2 compatible interface.
  11               "renesas,etheravb-rcar-gen3" for generic R-Car Gen 3 compatible interface.
  12
  13               When compatible with the generic version, nodes must list the
  14               SoC-specific version corresponding to the platform first
  15               followed by the generic version.
  16
  17 - reg: offset and length of (1) the register block and (2) the stream buffer.
  18 - interrupts: A list of interrupt-specifiers, one for each entry in
  19               interrupt-names.
  20               If interrupt-names is not present, an interrupt specifier
  21               for a single muxed interrupt.
  22 - phy-mode: see ethernet.txt file in the same directory.
  23 - phy-handle: see ethernet.txt file in the same directory.
  24 - #address-cells: number of address cells for the MDIO bus, must be equal to 1.
  25 - #size-cells: number of size cells on the MDIO bus, must be equal to 0.
  26 - clocks: clock phandle and specifier pair.
  27 - pinctrl-0: phandle, referring to a default pin configuration node.
  28
  29 Optional properties:
  30 - interrupt-parent: the phandle for the interrupt controller that services
  31                     interrupts for this device.
  32 - interrupt-names: A list of interrupt names.
  33                    For the R8A7795 SoC this property is mandatory;
  34                    it should include one entry per channel, named "ch%u",
  35                    where %u is the channel number ranging from 0 to 24.
  36                    For other SoCs this property is optional; if present
  37                    it should contain "mux" for a single muxed interrupt.
  38 - pinctrl-names: pin configuration state name ("default").
  39 - renesas,no-ether-link: boolean, specify when a board does not provide a proper
  40                          AVB_LINK signal.
  41 - renesas,ether-link-active-low: boolean, specify when the AVB_LINK signal is
  42                                  active-low instead of normal active-high.
  43
  44 Example:
  45
  46         ethernet@e6800000 {
  47                 compatible = "renesas,etheravb-r8a7795", "renesas,etheravb-rcar-gen3";
  48                 reg = <0 0xe6800000 0 0x800>, <0 0xe6a00000 0 0x10000>;
  49                 interrupt-parent = <&gic>;
  50                 interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
  51                              <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
  52                              <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
  53                              <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
  54                              <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
  55                              <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
  56                              <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>,
  57                              <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
  58                              <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
  59                              <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
  60                              <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
  61                              <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>,
  62                              <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
  63                              <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
  64                              <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
  65                              <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
  66                              <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
  67                              <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
  68                              <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
  69                              <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
  70                              <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
  71                              <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
  72                              <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>,
  73                              <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
  74                              <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
  75                 interrupt-names = "ch0", "ch1", "ch2", "ch3",
  76                                   "ch4", "ch5", "ch6", "ch7",
  77                                   "ch8", "ch9", "ch10", "ch11",
  78                                   "ch12", "ch13", "ch14", "ch15",
  79                                   "ch16", "ch17", "ch18", "ch19",
  80                                   "ch20", "ch21", "ch22", "ch23",
  81                                   "ch24";
  82                 clocks = <&mstp8_clks R8A7795_CLK_ETHERAVB>;
  83                 power-domains = <&cpg_clocks>;
  84                 phy-mode = "rgmii-id";
  85                 phy-handle = <&phy0>;
  86
  87                 pinctrl-0 = <&ether_pins>;
  88                 pinctrl-names = "default";
  89                 renesas,no-ether-link;
  90                 #address-cells = <1>;
  91                 #size-cells = <0>;
  92
  93                 phy0: ethernet-phy@0 {
  94                         rxc-skew-ps = <900>;
  95                         rxdv-skew-ps = <0>;
  96                         rxd0-skew-ps = <0>;
  97                         rxd1-skew-ps = <0>;
  98                         rxd2-skew-ps = <0>;
  99                         rxd3-skew-ps = <0>;
 100                         txc-skew-ps = <900>;
 101                         txen-skew-ps = <0>;
 102                         txd0-skew-ps = <0>;
 103                         txd1-skew-ps = <0>;
 104                         txd2-skew-ps = <0>;
 105                         txd3-skew-ps = <0>;
 106                         reg = <0>;
 107                         interrupt-parent = <&gpio2>;
 108                         interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
 109                 };
 110         };