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-r8a7745" for the R8A7745 SoC.
  10       - "renesas,etheravb-r8a77470" for the R8A77470 SoC.
  11       - "renesas,etheravb-r8a7790" for the R8A7790 SoC.
  12       - "renesas,etheravb-r8a7791" for the R8A7791 SoC.
  13       - "renesas,etheravb-r8a7792" for the R8A7792 SoC.
  14       - "renesas,etheravb-r8a7793" for the R8A7793 SoC.
  15       - "renesas,etheravb-r8a7794" for the R8A7794 SoC.
  16       - "renesas,etheravb-rcar-gen2" as a fallback for the above
  17                 R-Car Gen2 and RZ/G1 devices.
  18
  19       - "renesas,etheravb-r8a7795" for the R8A7795 SoC.
  20       - "renesas,etheravb-r8a7796" for the R8A7796 SoC.
  21       - "renesas,etheravb-r8a77965" for the R8A77965 SoC.
  22       - "renesas,etheravb-r8a77970" for the R8A77970 SoC.
  23       - "renesas,etheravb-r8a77980" for the R8A77980 SoC.
  24       - "renesas,etheravb-r8a77990" for the R8A77990 SoC.
  25       - "renesas,etheravb-r8a77995" for the R8A77995 SoC.
  26       - "renesas,etheravb-rcar-gen3" as a fallback for the above
  27                 R-Car Gen3 devices.
  28
  29         When compatible with the generic version, nodes must list the
  30         SoC-specific version corresponding to the platform first followed by
  31         the generic version.
  32
  33 - reg: Offset and length of (1) the register block and (2) the stream buffer.
  34        The region for the register block is mandatory.
  35        The region for the stream buffer is optional, as it is only present on
  36        R-Car Gen2 and RZ/G1 SoCs, and on R-Car H3 (R8A7795), M3-W (R8A7796),
  37        and M3-N (R8A77965).
  38 - interrupts: A list of interrupt-specifiers, one for each entry in
  39               interrupt-names.
  40               If interrupt-names is not present, an interrupt specifier
  41               for a single muxed interrupt.
  42 - phy-mode: see ethernet.txt file in the same directory.
  43 - phy-handle: see ethernet.txt file in the same directory.
  44 - #address-cells: number of address cells for the MDIO bus, must be equal to 1.
  45 - #size-cells: number of size cells on the MDIO bus, must be equal to 0.
  46 - clocks: clock phandle and specifier pair.
  47 - pinctrl-0: phandle, referring to a default pin configuration node.
  48
  49 Optional properties:
  50 - interrupt-parent: the phandle for the interrupt controller that services
  51                     interrupts for this device.
  52 - interrupt-names: A list of interrupt names.
  53                    For the R-Car Gen 3 SoCs this property is mandatory;
  54                    it should include one entry per channel, named "ch%u",
  55                    where %u is the channel number ranging from 0 to 24.
  56                    For other SoCs this property is optional; if present
  57                    it should contain "mux" for a single muxed interrupt.
  58 - pinctrl-names: pin configuration state name ("default").
  59 - renesas,no-ether-link: boolean, specify when a board does not provide a proper
  60                          AVB_LINK signal.
  61 - renesas,ether-link-active-low: boolean, specify when the AVB_LINK signal is
  62                                  active-low instead of normal active-high.
  63
  64 Example:
  65
  66         ethernet@e6800000 {
  67                 compatible = "renesas,etheravb-r8a7795", "renesas,etheravb-rcar-gen3";
  68                 reg = <0 0xe6800000 0 0x800>, <0 0xe6a00000 0 0x10000>;
  69                 interrupt-parent = <&gic>;
  70                 interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
  71                              <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
  72                              <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
  73                              <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
  74                              <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
  75                              <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
  76                              <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>,
  77                              <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
  78                              <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
  79                              <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
  80                              <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
  81                              <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>,
  82                              <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
  83                              <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
  84                              <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
  85                              <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
  86                              <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
  87                              <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
  88                              <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
  89                              <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
  90                              <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
  91                              <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
  92                              <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>,
  93                              <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
  94                              <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
  95                 interrupt-names = "ch0", "ch1", "ch2", "ch3",
  96                                   "ch4", "ch5", "ch6", "ch7",
  97                                   "ch8", "ch9", "ch10", "ch11",
  98                                   "ch12", "ch13", "ch14", "ch15",
  99                                   "ch16", "ch17", "ch18", "ch19",
 100                                   "ch20", "ch21", "ch22", "ch23",
 101                                   "ch24";
 102                 clocks = <&cpg CPG_MOD 812>;
 103                 power-domains = <&cpg>;
 104                 phy-mode = "rgmii-id";
 105                 phy-handle = <&phy0>;
 106
 107                 pinctrl-0 = <&ether_pins>;
 108                 pinctrl-names = "default";
 109                 renesas,no-ether-link;
 110                 #address-cells = <1>;
 111                 #size-cells = <0>;
 112
 113                 phy0: ethernet-phy@0 {
 114                         rxc-skew-ps = <900>;
 115                         rxdv-skew-ps = <0>;
 116                         rxd0-skew-ps = <0>;
 117                         rxd1-skew-ps = <0>;
 118                         rxd2-skew-ps = <0>;
 119                         rxd3-skew-ps = <0>;
 120                         txc-skew-ps = <900>;
 121                         txen-skew-ps = <0>;
 122                         txd0-skew-ps = <0>;
 123                         txd1-skew-ps = <0>;
 124                         txd2-skew-ps = <0>;
 125                         txd3-skew-ps = <0>;
 126                         reg = <0>;
 127                         interrupt-parent = <&gpio2>;
 128                         interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
 129                 };
 130         };