* Patch by Masami Komiya, 30 Mar 2005:
  add SNTP support and expand time server and time offset fields of
  DHCP support. See doc/README.SNTP

* Patch by Steven Scholz, 13 Dec 2004:
  Fix bug in at91rm920 ethernet driver
diff --git a/doc/README.SNTP b/doc/README.SNTP
new file mode 100644
index 0000000..fd6f209
--- /dev/null
+++ b/doc/README.SNTP
@@ -0,0 +1,17 @@
+To use SNTP support, add a define CFG_CMD_SNTP to CONFIG_COMMANDS in
+the configuration file of the board.
+
+The "sntp" command gets network time from NTP time server and
+syncronize RTC of the board. This command needs the command line
+parameter of server's IP address or environment variable
+"ntpserverip". The network time is sent as UTC. So if you want to
+set local time to RTC, set the offset in second from UTC to the
+enviroment variable "time offset".
+
+If the DHCP server provides time server's IP or time offset, you
+don't need to set the above environment variables yourself.
+
+Current limitations of SNTP support:
+1. The roundtrip time is ignored.
+2. Only the 1st NTP server IP, in the option ntp-servers of DHCP, will
+   be used.