From 8e52533d109571915a0006533e2e1adb01face00 Mon Sep 17 00:00:00 2001
From: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Date: Tue, 22 Oct 2013 19:10:28 -0500
Subject: [PATCH] net: tftpsrv: Get correct client MAC address

NetServerEther was not being cleared in the tftp server code, so the
destination MAC address would be whatever the last destination MAC
address was.

Scenario:
U-Boot:
	dhcp
	tftpsrv
Host:
	Send device WRQ
Device:
	Responds with ACK to dhcp server mac address with
	host ip address

By clearing NetServerEther, we force a lookup of the host MAC address
to go with the associated host IP.

Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
---
 net/tftp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/tftp.c b/net/tftp.c
index 2e06808d16d..966d1cfba36 100644
--- a/net/tftp.c
+++ b/net/tftp.c
@@ -849,6 +849,9 @@ TftpStartServer(void)
 
 	TftpState = STATE_RECV_WRQ;
 	net_set_udp_handler(TftpHandler);
+
+	/* zero out server ether in case the server ip has changed */
+	memset(NetServerEther, 0, 6);
 }
 #endif /* CONFIG_CMD_TFTPSRV */
 
-- 
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