wr_nic: write MAC to FPGA only for switch

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

kernel/wr_nic/nic-core.c

@@ -41,11 +41,13 @@ static int wrn_open(struct net_device *dev)
 	if (!is_valid_ether_addr(dev->dev_addr))
 		return -EADDRNOTAVAIL;
 
-	/* MACH gets the first two bytes, MACL the rest  */
-	val = get_unaligned_be16(dev->dev_addr);
-	writel(val, &ep->ep_regs->MACH);
-	val = get_unaligned_be32(dev->dev_addr+2);
-	writel(val, &ep->ep_regs->MACL);
+	if (WR_IS_SWITCH) {
+		/* MACH gets the first two bytes, MACL the rest  */
+		val = get_unaligned_be16(dev->dev_addr);
+		writel(val, &ep->ep_regs->MACH);
+		val = get_unaligned_be32(dev->dev_addr+2);
+		writel(val, &ep->ep_regs->MACL);
+	}
 
 	/* Mark it as down, and start the ep-specific polling timer */
 	clear_bit(WRN_EP_UP, &ep->ep_flags);