mmc: uniphier: add driver for UniPhier SD/MMC host controller

[people/ms/u-boot.git] / doc / README.fec_mxc

diff --git a/doc/README.fec_mxc b/doc/README.fec_mxc
index 72a1d595f5fe520bc252f5a71e0afd00a732f606..ed7e47d728581a3691654b5b7e6f20cad3fa96fb 100644 (file)
--- a/doc/README.fec_mxc
+++ b/doc/README.fec_mxc
@@ -1,7 +1,8 @@
-U-boot config options used in fec_mxc.c
+U-Boot config options used in fec_mxc.c
 
 CONFIG_FEC_MXC
-       Selects fec_mxc.c to be compiled into u-boot.
+       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.
@@ -25,3 +26,9 @@ CONFIG_FEC_MXC_NO_ANEG
 CONFIG_FEC_MXC_PHYADDR
        Optional, selects the exact phy address that should be connected
        and function fecmxc_initialize will try to initialize it.
+
+
+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.