netxen: fix memory initialization

Avoid resetting memory during initialization, skip this memory
block during driver probe.
Signed-off-by: NAmit Kumar Salecha <amit@netxen.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/netxen/netxen_nic_init.c

@@ -544,6 +544,8 @@ int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
 				continue;
 			if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
 				continue;
+			if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
+				continue;
 			if (off == (NETXEN_CRB_PEG_NET_1 + 0x18))
 				buf[i].data = 0x1020;
 			/* skip the function enable register */