diff --git a/common/miiphyutil.c b/common/miiphyutil.c
--- a/common/miiphyutil.c
+++ b/common/miiphyutil.c
@@ -58,6 +58,12 @@ struct mii_dev {
 static struct list_head mii_devs;
 static struct mii_dev *current_mii;
 
+void miiphy_init(void)
+{
+	INIT_LIST_HEAD(&mii_devs);
+	current_mii = NULL;
+}
+
 /*****************************************************************************
  *
  * Register read and write MII access routines for the device <name>.
diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c
--- a/cpu/ppc4xx/4xx_enet.c
+++ b/cpu/ppc4xx/4xx_enet.c
@@ -1360,6 +1360,10 @@ int ppc_4xx_eth_initialize (bd_t * bis)
 #endif
 #endif
 
+#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
+	miiphy_init();
+#endif
+
 	for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++) {
 
 		/* See if we can actually bring up the interface, otherwise, skip it */
diff --git a/include/miiphy.h b/include/miiphy.h
--- a/include/miiphy.h
+++ b/include/miiphy.h
@@ -62,6 +62,7 @@ void miiphy_register(char *devname,
 int miiphy_set_current_dev(char *devname);
 char *miiphy_get_current_dev(void);
 
+void miiphy_init(void);
 void miiphy_listdev(void);
 
 #define BB_MII_DEVNAME	"bbmii"