pcnet32: 79c976 with fiber optic

[Guido Guenther]

Hi,
I have a Allied Telesys using a 79c976 with a fibre optic connectior.
pcnet32 detects the card fine but looses the link when I ifup the
interface. If I use:

--- tmp/linux-2.6.9/drivers/net/pcnet32.c	2004-10-18 23:53:45.000000000 +0200
+++ linux-2.6.9/drivers/net/pcnet32.c	2004-11-24 15:52:27.000000000 +0100
@@ -1425,6 +1425,8 @@
 	val |= 0x10;
     lp->a.write_csr (ioaddr, 124, val);
 
+    printk(KERN_DEBUG "pcnet32: Skipping AMD workaround\n");
+#if 0
     /* 24 Jun 2004 according AMD, in order to change the PHY,
      * DANAS (or DISPM for 79C976) must be set; then select the speed,
      * duplex, and/or enable auto negotiation, and clear DANAS */
@@ -1446,6 +1448,7 @@
 	    lp->a.write_bcr(ioaddr, 32, val);
 	}
     }
+#endif
 
 #ifdef DO_DXSUFLO
     if (lp->dxsuflo) { /* Disable transmit stop on und

it works fine. Any idea what exactly causes the problem?
Cheers,
 -- Guido
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