diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index bc7c7d2..fd0ea7c 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -420,6 +420,26 @@
 	return 0;
 }
 
+/* This routine returns -1 as an indication to the caller that the
+ * Micrel ksz9021 10/100/1000 PHY does not support standard IEEE
+ * MMD extended PHY registers.
+ */
+static int
+ksz9021_rd_mmd_phyreg(struct phy_device *phydev, int ptrad, int devnum,
+		      int regnum)
+{
+	return -1;
+}
+
+/* This routine does nothing since the Micrel ksz9021 does not support
+ * standard IEEE MMD extended PHY registers.
+ */
+static void
+ksz9021_wr_mmd_phyreg(struct phy_device *phydev, int ptrad, int devnum,
+		      int regnum, u32 val)
+{
+}
+
 static struct phy_driver ksphy_driver[] = {
 {
 	.phy_id		= PHY_ID_KS8737,
@@ -565,6 +585,8 @@
 	.config_intr	= ksz9021_config_intr,
 	.suspend	= genphy_suspend,
 	.resume		= genphy_resume,
+	.read_mmd_indirect = ksz9021_rd_mmd_phyreg,
+	.write_mmd_indirect = ksz9021_wr_mmd_phyreg,
 	.driver		= { .owner = THIS_MODULE, },
 }, {
 	.phy_id		= PHY_ID_KSZ9031,