[U-Boot] [PATCH] fec_mx.c: Fix MX27 FEC logic to check validity of the MAC address in fuse

[Eric Jarrige]

Fix MX27 FEC logic to check validity of the MAC address in fuse.
Only null (empty fuse) or invalid MAC address was retrieved from mx27 fuses before this change.

Signed-off-by:  Eric Jarrige <jorasse at armadeus.org>
---
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 8c4ade5..d7706b5 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -325,7 +325,7 @@ static int fec_get_hwaddr(struct eth_device *dev, unsigned char *mac)
        for (i = 0; i < 6; i++)
                mac[6-1-i] = readl(&iim->iim_bank_area0[IIM0_MAC + i]);

-       return is_valid_ether_addr(mac);
+       return !is_valid_ether_addr(mac);
 #endif
 }