Bindings/ptp/ptp-ines.txt

   1 ZHAW InES PTP time stamping IP core
   2
   3 The IP core needs two different kinds of nodes.  The control node
   4 lives somewhere in the memory map and specifies the address of the
   5 control registers.  There can be up to three port handles placed as
   6 attributes of PHY nodes.  These associate a particular MII bus with a
   7 port index within the IP core.
   8
   9 Required properties of the control node:
  10
  11 - compatible:           "ines,ptp-ctrl"
  12 - reg:                  physical address and size of the register bank
  13
  14 Required format of the port handle within the PHY node:
  15
  16 - timestamper:          provides control node reference and
  17                         the port channel within the IP core
  18
  19 Example:
  20
  21         tstamper: timestamper@60000000 {
  22                 compatible = "ines,ptp-ctrl";
  23                 reg = <0x60000000 0x80>;
  24         };
  25
  26         ethernet@80000000 {
  27                 ...
  28                 mdio {
  29                         ...
  30                         ethernet-phy@3 {
  31                                 ...
  32                                 timestamper = <&tstamper 0>;
  33                         };
  34                 };
  35         };