mv643xx_eth: only print banner once

When there are multiple mv643xx_eth silicon blocks in the system,
don't print an initialisation message for each and every one of
them.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>

drivers/net/mv643xx_eth.c

@@ -1981,8 +1981,10 @@ static int mv643xx_eth_remove(struct platform_device *pdev)
 
 static int mv643xx_eth_shared_probe(struct platform_device *pdev)
 {
+	static int mv643xx_version_printed = 0;
 	struct resource *res;
 
+	if (!mv643xx_version_printed++)
 		printk(KERN_NOTICE "MV-643xx 10/100/1000 Ethernet Driver\n");
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);