u-boot/doc/README.fec_mxc
Tom Rini 08f1d58aff net: fec_mxc: Drop CONFIG_FEC_XCV_TYPE
With all boards now using DM_ETH we determine the value for
CONFIG_FEC_XCV_TYPE at run time, except in the case of the default
fall-back.  Set the fallback directly now.

Cc: Fabio Estevam <festevam@gmail.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-03-18 12:48:17 -04:00

35 lines
1.2 KiB
Plaintext

U-Boot config options used in fec_mxc.c
CONFIG_FEC_MXC
Selects fec_mxc.c to be compiled into u-boot. Can read out the
ethaddr from the SoC eFuses (see below).
CONFIG_MII
Must be defined if CONFIG_FEC_MXC is defined.
CONFIG_FEC_MXC_SWAP_PACKET
Forced on iff MX28.
Swaps the bytes order of all words(4 byte units) in the packet.
This should not be specified by a board file. It is cpu specific.
CONFIG_PHYLIB
fec_mxc supports PHYLIB and should be used for new boards.
CONFIG_FEC_MXC_NO_ANEG
Relevant only if PHYLIB not used. Skips auto-negotiation restart.
CONFIG_FEC_MXC_PHYADDR
Optional, selects the exact phy address that should be connected
and function fecmxc_initialize will try to initialize it.
CONFIG_FEC_FIXED_SPEED
Optional, selects a fixed speed on the MAC interface without asking some
phy. This is usefull if there is a direct MAC <-> MAC connection, for
example if the CPU is connected directly via the RGMII interface to a
ethernet-switch.
Reading the ethaddr from the SoC eFuses:
if CONFIG_FEC_MXC is defined and the U-Boot environment does not contain the
ethaddr variable, then its value gets read from the corresponding eFuses in
the SoC. See the README files of the specific SoC for details.