cavium-pip.txt

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    1 * PIP Ethernet nexus.
    2 
    3 The PIP Ethernet nexus can control several data packet input/output
    4 devices.  The devices have a two level grouping scheme.  There may be
    5 several interfaces, and each interface may have several ports.  These
    6 ports might be an individual Ethernet PHY.
    7 
    8 
    9 Properties for the PIP nexus:
   10 - compatible: "cavium,octeon-3860-pip"
   11 
   12   Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
   13 
   14 - reg: The base address of the PIP's register bank.
   15 
   16 - #address-cells: Must be <1>.
   17 
   18 - #size-cells: Must be <0>.
   19 
   20 Properties for PIP interfaces which is a child the PIP nexus:
   21 - compatible: "cavium,octeon-3860-pip-interface"
   22 
   23   Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
   24 
   25 - reg: The interface number.
   26 
   27 - #address-cells: Must be <1>.
   28 
   29 - #size-cells: Must be <0>.
   30 
   31 Properties for PIP port which is a child the PIP interface:
   32 - compatible: "cavium,octeon-3860-pip-port"
   33 
   34   Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
   35 
   36 - reg: The port number within the interface group.
   37 
   38 - phy-handle: Optional, see ethernet.txt file in the same directory.
   39 
   40 - rx-delay: Delay value for RGMII receive clock. Optional. Disabled if 0.
   41   Value range is 1-31, and mapping to the actual delay varies depending on HW.
   42 
   43 - tx-delay: Delay value for RGMII transmit clock. Optional. Disabled if 0.
   44   Value range is 1-31, and mapping to the actual delay varies depending on HW.
   45 
   46 Example:
   47 
   48         pip@11800a0000000 {
   49                 compatible = "cavium,octeon-3860-pip";
   50                 #address-cells = <1>;
   51                 #size-cells = <0>;
   52                 reg = <0x11800 0xa0000000 0x0 0x2000>;
   53 
   54                 interface@0 {
   55                         compatible = "cavium,octeon-3860-pip-interface";
   56                         #address-cells = <1>;
   57                         #size-cells = <0>;
   58                         reg = <0>; /* interface */
   59 
   60                         ethernet@0 {
   61                                 compatible = "cavium,octeon-3860-pip-port";
   62                                 reg = <0x0>; /* Port */
   63                                 local-mac-address = [ 00 0f b7 10 63 60 ];
   64                                 phy-handle = <&phy2>;
   65                         };
   66                         ethernet@1 {
   67                                 compatible = "cavium,octeon-3860-pip-port";
   68                                 reg = <0x1>; /* Port */
   69                                 local-mac-address = [ 00 0f b7 10 63 61 ];
   70                                 phy-handle = <&phy3>;
   71                         };
   72                         ethernet@2 {
   73                                 compatible = "cavium,octeon-3860-pip-port";
   74                                 reg = <0x2>; /* Port */
   75                                 local-mac-address = [ 00 0f b7 10 63 62 ];
   76                                 phy-handle = <&phy4>;
   77                         };
   78                         ethernet@3 {
   79                                 compatible = "cavium,octeon-3860-pip-port";
   80                                 reg = <0x3>; /* Port */
   81                                 local-mac-address = [ 00 0f b7 10 63 63 ];
   82                                 phy-handle = <&phy5>;
   83                         };
   84                 };
   85 
   86                 interface@1 {
   87                         compatible = "cavium,octeon-3860-pip-interface";
   88                         #address-cells = <1>;
   89                         #size-cells = <0>;
   90                         reg = <1>; /* interface */
   91 
   92                         ethernet@0 {
   93                                 compatible = "cavium,octeon-3860-pip-port";
   94                                 reg = <0x0>; /* Port */
   95                                 local-mac-address = [ 00 0f b7 10 63 64 ];
   96                                 phy-handle = <&phy6>;
   97                         };
   98                 };
   99         };

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sys/contrib/device-tree/Bindings/net/cavium-pip.txt