diff --git a/net/eth.c b/net/eth.c
index 9eae17c..0251e59 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -146,7 +146,7 @@
 	unsigned char ethaddr[6];
 
 	if (!edev->get_ethaddr) {
-		printf("no get_mac_address found for current eth device\n");
+		dev_err(dev, "no get_mac_address found for current eth device\n");
 		return -1;
 	}
 
@@ -167,7 +167,7 @@
 
 	if (edev->get_ethaddr(edev, ethaddr) == 0) {
 		ethaddr_to_string(ethaddr, ethaddr_str);
-		printf("got MAC address from EEPROM: %s\n", ethaddr_str);
+		dev_info(dev, "got MAC address from EEPROM: %s\n", ethaddr_str);
 		dev_set_param(dev, "ethaddr", ethaddr_str);
 	}