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: Must contain one or more of the following:
   8       - "renesas,etheravb-r8a7743" for the R8A7743 SoC.
   9       - "renesas,etheravb-r8a7790" for the R8A7790 SoC.
  10       - "renesas,etheravb-r8a7791" for the R8A7791 SoC.
  11       - "renesas,etheravb-r8a7792" for the R8A7792 SoC.
  12       - "renesas,etheravb-r8a7793" for the R8A7793 SoC.
  13       - "renesas,etheravb-r8a7794" for the R8A7794 SoC.
  14       - "renesas,etheravb-rcar-gen2" as a fallback for the above
  15                 R-Car Gen2 and RZ/G1 devices.
  16
  17       - "renesas,etheravb-r8a7795" for the R8A7795 SoC.
  18       - "renesas,etheravb-r8a7796" for the R8A7796 SoC.
  19       - "renesas,etheravb-rcar-gen3" as a fallback for the above
  20                 R-Car Gen3 devices.
  21
  22         When compatible with the generic version, nodes must list the
  23         SoC-specific version corresponding to the platform first followed by
  24         the generic version.
  25
  26 - reg: offset and length of (1) the register block and (2) the stream buffer.
  27 - interrupts: A list of interrupt-specifiers, one for each entry in
  28               interrupt-names.
  29               If interrupt-names is not present, an interrupt specifier
  30               for a single muxed interrupt.
  31 - phy-mode: see ethernet.txt file in the same directory.
  32 - phy-handle: see ethernet.txt file in the same directory.
  33 - #address-cells: number of address cells for the MDIO bus, must be equal to 1.
  34 - #size-cells: number of size cells on the MDIO bus, must be equal to 0.
  35 - clocks: clock phandle and specifier pair.
  36 - pinctrl-0: phandle, referring to a default pin configuration node.
  37
  38 Optional properties:
  39 - interrupt-parent: the phandle for the interrupt controller that services
  40                     interrupts for this device.
  41 - interrupt-names: A list of interrupt names.
  42                    For the R8A779[56] SoCs this property is mandatory;
  43                    it should include one entry per channel, named "ch%u",
  44                    where %u is the channel number ranging from 0 to 24.
  45                    For other SoCs this property is optional; if present
  46                    it should contain "mux" for a single muxed interrupt.
  47 - pinctrl-names: pin configuration state name ("default").
  48 - renesas,no-ether-link: boolean, specify when a board does not provide a proper
  49                          AVB_LINK signal.
  50 - renesas,ether-link-active-low: boolean, specify when the AVB_LINK signal is
  51                                  active-low instead of normal active-high.
  52
  53 Example:
  54
  55         ethernet@e6800000 {
  56                 compatible = "renesas,etheravb-r8a7795", "renesas,etheravb-rcar-gen3";
  57                 reg = <0 0xe6800000 0 0x800>, <0 0xe6a00000 0 0x10000>;
  58                 interrupt-parent = <&gic>;
  59                 interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
  60                              <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
  61                              <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
  62                              <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
  63                              <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
  64                              <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
  65                              <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>,
  66                              <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
  67                              <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
  68                              <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
  69                              <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
  70                              <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>,
  71                              <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
  72                              <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
  73                              <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
  74                              <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
  75                              <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
  76                              <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
  77                              <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
  78                              <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
  79                              <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
  80                              <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
  81                              <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>,
  82                              <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
  83                              <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
  84                 interrupt-names = "ch0", "ch1", "ch2", "ch3",
  85                                   "ch4", "ch5", "ch6", "ch7",
  86                                   "ch8", "ch9", "ch10", "ch11",
  87                                   "ch12", "ch13", "ch14", "ch15",
  88                                   "ch16", "ch17", "ch18", "ch19",
  89                                   "ch20", "ch21", "ch22", "ch23",
  90                                   "ch24";
  91                 clocks = <&cpg CPG_MOD 812>;
  92                 power-domains = <&cpg>;
  93                 phy-mode = "rgmii-id";
  94                 phy-handle = <&phy0>;
  95
  96                 pinctrl-0 = <&ether_pins>;
  97                 pinctrl-names = "default";
  98                 renesas,no-ether-link;
  99                 #address-cells = <1>;
 100                 #size-cells = <0>;
 101
 102                 phy0: ethernet-phy@0 {
 103                         rxc-skew-ps = <900>;
 104                         rxdv-skew-ps = <0>;
 105                         rxd0-skew-ps = <0>;
 106                         rxd1-skew-ps = <0>;
 107                         rxd2-skew-ps = <0>;
 108                         rxd3-skew-ps = <0>;
 109                         txc-skew-ps = <900>;
 110                         txen-skew-ps = <0>;
 111                         txd0-skew-ps = <0>;
 112                         txd1-skew-ps = <0>;
 113                         txd2-skew-ps = <0>;
 114                         txd3-skew-ps = <0>;
 115                         reg = <0>;
 116                         interrupt-parent = <&gpio2>;
 117                         interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
 118                 };
 119         };