Hi Owen,
 
Yes tried all of that.......
 
We get the same failure on the DM355 in u-boot where we have set static IP 
addresses for DM355 & TFTP server. The file transfer fails. One reboot/power 
cycle later & it will work fine. It is driving us nuts!
 
I have tried different switches, cables, DHCP servers and the 'fault' follows 
the DM355s. Using the same hardware (cables switches) other target boards we 
have manage to work without issue.
 
I must admit that I didn't check to see if the link light was on when the 
ethernet appears to fail. Of course because I wanted it to fail it wouldn't do 
it just now.
 
Regards
 
Phil Q
 
Phil Quiney, Senior Software Engineer
Trinity Convergence
Cambridge Business Park
Cowley Road
Cambridge CB4 0WZ, UK
T: +44(0)1223-435536
F: +44(0)1223-435560
www.trinityconvergence.com <http://www.trinityconvergence.com/> 

 

________________________________

From: Chu, Owen [mailto:[EMAIL PROTECTED] 
Sent: 26 March 2008 16:10
To: Phil Quiney; [email protected]
Subject: RE: DM355 Ethernet Start failure



Phil,

 

Are you sure the first 2 scenarios are not due to DHCP problem? If the EVM is 
able to send DCHP request then it means Ethernet is OK. Connect the EVM 
Ethernet port thru a hub/switch to see if the LED comes on (detecting the 
carrier).

 

For u-boot, you can try the similar thing (thru a hub/switch) to see if 
Ethernet comes on when you issue a prompt command (e.g. ping).

 

Regards,

Owen

________________________________

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Phil Quiney
Sent: Wednesday, March 26, 2008 9:35 AM
To: [email protected]
Subject: DM355 Ethernet Start failure

 

Hi,

 

We have 2 DM355 Boards and both show a problem where the ethernet sometimes 
fails to come up when the board boots. Do other people see this?

 

If you boot a Linux kernel from FLASH with NFS root filesystem it gets as far 
as the DHCP request for its IP address (kernel autoconfig) and never gets an 
address.

 

Booting with a FLASH kernel and FLASH filesystem with no kernel autoconfig but 
'dhcpcd' enabled, again the DHCP request is never answered.

 

Also, just booting into u-boot can fail to transfer files (static addresses of 
DM355 & TFTP server).

 

In all cases rebooting, pressing the reset button or power cycling the board 
usually fixes it. 

 

 

Regards

 

Phil Q

 

Phil Quiney, Senior Software Engineer
Trinity Convergence
Cambridge Business Park

Cowley Road

Cambridge CB4 0WZ, UK
T: +44(0)1223-435536
F: +44(0)1223-435560

www.trinityconvergence.com <http://www.trinityconvergence.com/> 

 

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