doc/README.fec_mxc

   1 U-boot config options used in fec_mxc.c
   2
   3 CONFIG_FEC_MXC
   4         Selects fec_mxc.c to be compiled into u-boot. Can read out the
   5         ethaddr from the SoC eFuses (see below).
   6
   7 CONFIG_MII
   8         Must be defined if CONFIG_FEC_MXC is defined.
   9
  10 CONFIG_FEC_XCV_TYPE
  11         Defaults to MII100 for 100 Base-tx.
  12         RGMII selects 1000 Base-tx reduced pin count interface.
  13         RMII selects 100 Base-tx reduced pin count interface.
  14
  15 CONFIG_FEC_MXC_SWAP_PACKET
  16         Forced on iff MX28.
  17         Swaps the bytes order of all words(4 byte units) in the packet.
  18         This should not be specified by a board file. It is cpu specific.
  19
  20 CONFIG_PHYLIB
  21         fec_mxc supports PHYLIB and should be used for new boards.
  22
  23 CONFIG_FEC_MXC_NO_ANEG
  24         Relevant only if PHYLIB not used. Skips auto-negotiation restart.
  25
  26 CONFIG_FEC_MXC_PHYADDR
  27         Optional, selects the exact phy address that should be connected
  28         and function fecmxc_initialize will try to initialize it.
  29
  30
  31 Reading the ethaddr from the SoC eFuses:
  32 if CONFIG_FEC_MXC is defined and the U-Boot environment does not contain the
  33 ethaddr variable, then its value gets read from the corresponding eFuses in
  34 the SoC. See the README files of the specific SoC for details.