diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c
index d48aa7231b37..126951741428 100644
--- a/drivers/net/phy/phy-c45.c
+++ b/drivers/net/phy/phy-c45.c
@@ -940,6 +940,14 @@ EXPORT_SYMBOL_GPL(genphy_c45_read_eee_abilities);
  */
 int genphy_c45_an_config_eee_aneg(struct phy_device *phydev)
 {
+	/* Writing MMD AN advertisements while autoneg is disabled has no
+	 * effect on link-partner negotiation, but on some PHYs (e.g. the
+	 * Broadcom BCM54213PE) the write itself disturbs the receive
+	 * datapath. Skip it.
+	 */
+	if (phydev->autoneg == AUTONEG_DISABLE)
+		return 0;
+
 	if (!phydev->eee_cfg.eee_enabled) {
 		__ETHTOOL_DECLARE_LINK_MODE_MASK(adv) = {};