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Date:	Fri, 23 Jun 2006 22:48:35 +0200
From:	Johannes Stezenbach <js@linuxtv.org>
To:	Daniel Mack <daniel@caiaq.de>
Cc:	linux-mips@linux-mips.org
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Subject: Re: smc91x ethernet an DBAU1200
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Hi Daniel,

On Fri, Jun 23, 2006, Daniel Mack wrote:
>is there anyone out there successfully using the SMC 91C111 ethernet  
>chip
>on AMD's DBAU1200 eval kit? In my setup here, it's working fine from  
>within
>the YAMON boot loader so I can use it to download a kernel image via  
>TFTP.
>The kernel (bleeding edge linux-2.6 mips-GIT) detects the device as well
>
>	smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@cam.org>
>	eth0: SMC91C11xFD (rev 1) at b9000300 IRQ 65 [nowait]
>	eth0: Ethernet addr: 00:00:1a:19:11:8c
>
>and is able to mount its root filesystem via NFS. However, the  
>communication
>does not seem to be sufficiently stable, messages like this occur  
>regularily:
>
>	nfs: server 192.168.1.200 not responding, still trying
>	nfs: server 192.168.1.200 not responding, still trying

I had similar issues with smc91x.c on a different platform,
where the bus it is connected to was rather slow (and no DMA)
-> dropped packets.

Try to use NFS via TCP, or force a 10Mbit connection
with ethtool or by hacking the driver (ctl_rspeed).
(For me tcp works.)


HTH,
Johannes