diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 0615228459ef..94b2e85e00a3 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -2770,6 +2770,31 @@ int genphy_read_abilities(struct phy_device *phydev)
 }
 EXPORT_SYMBOL(genphy_read_abilities);
 
+/* Some PHYs support direct C45 register access but not C22 indirect
+ * MMD access (registers 13 and 14). When discovered via C22, phylib
+ * routes MMD access through the indirect path, which won't work on
+ * these devices. These helpers bypass indirect access and use the bus
+ * C45 accessors directly.
+ */
+int genphy_read_mmd_c45(struct phy_device *phydev, int devnum, u16 regnum)
+{
+	struct mii_bus *bus = phydev->mdio.bus;
+	int addr = phydev->mdio.addr;
+
+	return __mdiobus_c45_read(bus, addr, devnum, regnum);
+}
+EXPORT_SYMBOL(genphy_read_mmd_c45);
+
+int genphy_write_mmd_c45(struct phy_device *phydev, int devnum, u16 regnum,
+			 u16 val)
+{
+	struct mii_bus *bus = phydev->mdio.bus;
+	int addr = phydev->mdio.addr;
+
+	return __mdiobus_c45_write(bus, addr, devnum, regnum, val);
+}
+EXPORT_SYMBOL(genphy_write_mmd_c45);
+
 /* This is used for the phy device which doesn't support the MMD extended
  * register access, but it does have side effect when we are trying to access
  * the MMD register via indirect method.
diff --git a/include/linux/phy.h b/include/linux/phy.h
index beff1d6fcc7c..11092c3175b3 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -2302,6 +2302,9 @@ static inline int genphy_no_config_intr(struct phy_device *phydev)
 {
 	return 0;
 }
+int genphy_read_mmd_c45(struct phy_device *phydev, int devnum, u16 regnum);
+int genphy_write_mmd_c45(struct phy_device *phydev, int devnum, u16 regnum,
+			 u16 val);
 int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
 				u16 regnum);
 int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,