mvgbe: remove setting of ethaddr within the driver

A network driver should not touch the environment at all. This patch fixes
this behaviour by removing the code for setting a default/randomized MAC
address.

Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Prafulla Wadaskar <prafulla@marvell.com>
Cc: Valentin Longchamp <valentin.longchamp@keymile.com>
Cc: Eric Cooper <ecc@cmu.edu>
Cc: Jason Cooper <u-boot@lakedaemon.net>
Cc: Siddarth Gore <gores@marvell.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Simon Guinot <simon.guinot@sequanux.org>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>

drivers/net/mvgbe.c

@@ -651,7 +651,6 @@ int mvgbe_initialize(bd_t *bis)
 	struct mvgbe_device *dmvgbe;
 	struct eth_device *dev;
 	int devnum;
-	char *s;
 	u8 used_ports[MAX_MVGBE_DEVS] = CONFIG_MVGBE_PORTS;
 
 	for (devnum = 0; devnum < MAX_MVGBE_DEVS; devnum++) {
@@ -706,16 +705,13 @@ error1:
 		/* must be less than NAMESIZE (16) */
 		sprintf(dev->name, "egiga%d", devnum);
 
-		/* Extract the MAC address from the environment */
 		switch (devnum) {
 		case 0:
 			dmvgbe->regs = (void *)MVGBE0_BASE;
-			s = "ethaddr";
 			break;
 #if defined(MVGBE1_BASE)
 		case 1:
 			dmvgbe->regs = (void *)MVGBE1_BASE;
-			s = "eth1addr";
 			break;
 #endif
 		default:	/* this should never happen */
@@ -724,25 +720,6 @@ error1:
 			return -1;
 		}
 
-		while (!eth_getenv_enetaddr(s, dev->enetaddr)) {
-			/* Generate Private MAC addr if not set */
-			dev->enetaddr[0] = 0x02;
-			dev->enetaddr[1] = 0x50;
-			dev->enetaddr[2] = 0x43;
-#if defined (CONFIG_SKIP_LOCAL_MAC_RANDOMIZATION)
-			/* Generate fixed lower MAC half using devnum */
-			dev->enetaddr[3] = 0;
-			dev->enetaddr[4] = 0;
-			dev->enetaddr[5] = devnum;
-#else
-			/* Generate random lower MAC half */
-			dev->enetaddr[3] = get_random_hex();
-			dev->enetaddr[4] = get_random_hex();
-			dev->enetaddr[5] = get_random_hex();
-#endif
-			eth_setenv_enetaddr(s, dev->enetaddr);
-		}
-
 		dev->init = (void *)mvgbe_init;
 		dev->halt = (void *)mvgbe_halt;
 		dev->send = (void *)mvgbe_send;