diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 1db586d..9168e15 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -46,7 +46,7 @@
 #include <asm/io.h>
 #include "davinci_emac.h"
 
-unsigned int	emac_dbg = 0;
+unsigned int	emac_dbg = 1;
 #define debug_emac(fmt,args...)	if (emac_dbg) printf(fmt,##args)
 
 #ifdef EMAC_HW_RAM_ADDR
@@ -212,6 +212,7 @@ static int davinci_eth_phy_detect(void)
 	udelay(1000);
 	phy_act_state = readl(&adap_mdio->ALIVE);
 
+	printf("phy_act_state: %x\n", phy_act_state);
 	if (phy_act_state == 0)
 		return 0;		/* No active PHYs */
 
@@ -782,6 +783,8 @@ int davinci_emac_initialize(void)
 	int		ret;
 	struct eth_device *dev;
 
+	printf("davinci_emac_initialize()...\n");
+
 	dev = malloc(sizeof *dev);
 
 	if (dev == NULL)
@@ -809,6 +812,7 @@ int davinci_emac_initialize(void)
 			break;
 		udelay(1000);
 	}
+	printf("i = %d\n", i);
 
 	if (i >= 256) {
 		printf("No ETH PHY detected!!!\n");
@@ -817,8 +821,10 @@ int davinci_emac_initialize(void)
 
 	/* Find if PHY(s) is/are connected */
 	ret = davinci_eth_phy_detect();
-	if (!ret)
+	if (!ret) {
+		printf("davinci_eth_phy_detect error\n");
 		return(0);
+	}
 	else
 		debug_emac(" %d ETH PHY detected\n", ret);
 
diff --git a/include/configs/da830evm.h b/include/configs/da830evm.h
index 346088f..bccc3c9 100644
--- a/include/configs/da830evm.h
+++ b/include/configs/da830evm.h
@@ -285,4 +285,6 @@
 #define CONFIG_SYS_INIT_SP_ADDR		\
 	(CONFIG_SYS_SDRAM_BASE + 0x1000 - GENERATED_GBL_DATA_SIZE)
 
+#define CONFIG_ENV_OVERWRITE	1	/* allow overwrite MAC address */
+
 #endif /* __CONFIG_H */