diff --git a/drivers/net/mvgbe.c b/drivers/net/mvgbe.c
index 477bf5c..dcc1547 100644
--- a/drivers/net/mvgbe.c
+++ b/drivers/net/mvgbe.c
@@ -52,6 +52,7 @@
 #define MV_PHY_ADR_REQUEST 0xee
 #define MVGBE_SMI_REG (((struct mvgbe_registers *)MVGBE0_BASE)->smi)
 
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
 /*
  * smi_reg_read - miiphy_read callback function.
  *
@@ -181,6 +182,7 @@
 
 	return 0;
 }
+#endif
 
 /* Stop and checks all queues */
 static void stop_queue(u32 * qreg)