X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=doc%2FREADME.fec_mxc;h=9ca6ac2fb59d13253af6fdd742e3b36a508d0a39;hb=932b8f8c29811fd0560c4df1221156fa498edfc5;hp=ed7e47d728581a3691654b5b7e6f20cad3fa96fb;hpb=595af9db2422fa5ae734cfe615415b17a5098f34;p=oweals%2Fu-boot.git

diff --git a/doc/README.fec_mxc b/doc/README.fec_mxc
index ed7e47d728..9ca6ac2fb5 100644
--- a/doc/README.fec_mxc
+++ b/doc/README.fec_mxc
@@ -27,6 +27,11 @@ 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