diff --git a/target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c b/target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c
index b87497fe6a..20e3f555c2 100644
--- a/target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c
+++ b/target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 
+#include <linux/fwnode_mdio.h>
 #include <linux/mutex.h>
 #include <linux/of_mdio.h>
 #include <linux/of_net.h>
@@ -149,6 +150,7 @@ struct rtmdio_bus_priv {
 	bool raw[RTMDIO_MAX_PORT];
 	int smi_bus[RTMDIO_MAX_PORT];
 	u8 smi_addr[RTMDIO_MAX_PORT];
+	struct device_node *dn[RTMDIO_MAX_PORT];
 	bool smi_bus_isc45[RTMDIO_MAX_SMI_BUS];
 };
 
@@ -1012,31 +1014,21 @@ static int rtmdio_reset(struct mii_bus *bus)
 
 static int rtmdio_probe(struct platform_device *pdev)
 {
-	struct device_node *dn;
 	struct device *dev = &pdev->dev;
 	struct rtmdio_bus_priv *priv;
+	struct device_node *dn;
 	struct mii_bus *bus;
-	int addr;
+	int ret, addr;
 
 	bus = devm_mdiobus_alloc_size(dev, sizeof(*priv));
 	if (!bus)
 		return -ENOMEM;
 
 	priv = bus->priv;
+	priv->cfg = (const struct rtmdio_config *)device_get_match_data(dev);
 	for (addr = 0; addr < RTMDIO_MAX_PORT; addr++)
 		priv->smi_bus[addr] = -1;
 
-	priv->cfg = (const struct rtmdio_config *)device_get_match_data(dev);
-
-	bus->name = "Realtek MDIO bus";
-	bus->reset = rtmdio_reset;
-	bus->read = rtmdio_read;
-	bus->write = rtmdio_write;
-	bus->read_c45 = rtmdio_read_c45;
-	bus->write_c45 = rtmdio_write_c45;
-	bus->parent = dev;
-	bus->phy_mask = ~(BIT_ULL(priv->cfg->cpu_port) - 1ULL);
-
 	for_each_node_by_name(dn, "ethernet-phy") {
 		u32 smi_addr[2];
 
@@ -1063,17 +1055,34 @@ static int rtmdio_probe(struct platform_device *pdev)
 
 		if (of_device_is_compatible(dn, "ethernet-phy-ieee802.3-c45"))
 			priv->smi_bus_isc45[priv->smi_bus[addr]] = true;
+
+		priv->dn[addr] = dn;
 	}
 
-	dn = of_find_compatible_node(NULL, NULL, "realtek,rtl83xx-switch");
-	if (!dn) {
-		dev_err(dev, "No RTL switch node in DTS\n");
-		return -ENODEV;
-	}
-
+	bus->name = "Realtek MDIO bus";
+	bus->reset = rtmdio_reset;
+	bus->read = rtmdio_read;
+	bus->write = rtmdio_write;
+	bus->read_c45 = rtmdio_read_c45;
+	bus->write_c45 = rtmdio_write_c45;
+	bus->parent = dev;
+	bus->phy_mask = ~0;
 	snprintf(bus->id, MII_BUS_ID_SIZE, "%s-mii", dev_name(dev));
 
-	return devm_of_mdiobus_register(dev, bus, dev->of_node);
+	device_set_node(&bus->dev, of_fwnode_handle(dev->of_node));
+	ret = devm_mdiobus_register(dev, bus);
+	if (ret)
+		return ret;
+
+	for (addr = 0; addr < priv->cfg->cpu_port; addr++) {
+		if (priv->dn[addr]) {
+			ret = fwnode_mdiobus_register_phy(bus, of_fwnode_handle(priv->dn[addr]), addr);
+			if (ret)
+				return ret;
+		}
+	}
+
+	return 0;
 }
 
 static const struct rtmdio_config rtmdio_838x_cfg = {