macb: add support to read the mac address from register
check the 4 mac address register and return at the first valid

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent a99a74f commit 7ccaaf71fe84f090b359d8d21e76aaff84d295f0
@Jean-Christophe PLAGNIOL-VILLARD Jean-Christophe PLAGNIOL-VILLARD authored on 3 Oct 2013
Sascha Hauer committed on 6 Oct 2013
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drivers/net/macb.c