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: davinci-linux-open-source@linux.davincidsp.com 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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