MIPS: BCM47xx: Fix MAC address parsing.

Some devices like the Netgear WGT634u are using minuses between the blocks
of the MAC address and other devices are using colons to separate them.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2366/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/include/asm/mach-bcm47xx/nvram.h b/arch/mips/include/asm/mach-bcm47xx/nvram.h
index 9759588..184d5ec 100644
--- a/arch/mips/include/asm/mach-bcm47xx/nvram.h
+++ b/arch/mips/include/asm/mach-bcm47xx/nvram.h
@@ -39,8 +39,16 @@
 
 static inline void nvram_parse_macaddr(char *buf, u8 *macaddr)
 {
-	sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0], &macaddr[1],
-	       &macaddr[2], &macaddr[3], &macaddr[4], &macaddr[5]);
+	if (strchr(buf, ':'))
+		sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
+			&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
+			&macaddr[5]);
+	else if (strchr(buf, '-'))
+		sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
+			&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
+			&macaddr[5]);
+	else
+		printk(KERN_WARNING "Can not parse mac address: %s\n", buf);
 }
 
 #endif