From: wyu hotmail <santerash@hotmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] MPC8260 FCC ethernet fails
Date: Mon, 07 Jun 2004 08:18:09 +0000 [thread overview]
Message-ID: <BAY22-F30Bi89QtpfTY00017a62@hotmail.com> (raw)
If you configured the Tx and Rx clocks wrong (Rx clk was connected to Tx
and Tx clk was connected to Rx), FCC can still works, but it will lost most
of the packets.
yuwp
>From: "Ho Lee" <flyduck@linuxkernel.net>
>To: "u-boot-users" <u-boot-users@lists.sourceforge.net>
>Date: Fri, 4 Jun 2004 18:43:22 -0700
>Subject: [U-Boot-Users] MPC8260 FCC ethernet fails.
>
>Hi Folks,
>
>I am porting u-boot 1.1.1 to MPC8260 based board, which uses FCC3
>for ethernet. Basicially it is working; it sends and receives ICMP packets
(ping)
>and DHCP packets. But when I try to download a file via TFTP protocol, it
>loses packets frequently (once per about 10 packet transfers), eventually
>results in timeout. I monitor the packet transfers by tcpdump, and the
server
>surely sends a packet, but the buffer descriptor of FCC says the RX buffer
>is empty. What may cause this problem? I would appreciate any comments.
>
>Regards,
>Ho
next reply other threads:[~2004-06-07 8:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-07 8:18 wyu hotmail [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-06-05 1:43 [U-Boot-Users] MPC8260 FCC ethernet fails Ho Lee
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