diff --git a/target/linux/realtek/files-6.18/drivers/net/phy/realtek/realtek_multiport.c b/target/linux/realtek/files-6.18/drivers/net/phy/realtek/realtek_multiport.c
index 29b5cce4c1a..3406242d698 100644
--- a/target/linux/realtek/files-6.18/drivers/net/phy/realtek/realtek_multiport.c
+++ b/target/linux/realtek/files-6.18/drivers/net/phy/realtek/realtek_multiport.c
@@ -449,6 +449,48 @@ static int rtl821x_config_init(struct phy_device *phydev)
 	return 0;
 }
 
+static int rtl8218e_config_init(struct phy_device *phydev)
+{
+	int oldpage, oldxpage;
+	bool is_xsgmii;
+
+	rtl821x_config_init(phydev);
+
+	if (phydev->mdio.addr % 8)
+		return 0;
+
+	oldpage = phy_read(phydev, RTL821x_PAGE_SELECT);
+	oldxpage = phy_read(phydev, RTL821x_EXT_PAGE_SELECT);
+
+	phy_write(phydev, RTL821x_EXT_PAGE_SELECT, 0x8);
+	is_xsgmii = (phy_read_paged(phydev, 0x260, 0x12) & 0xf0) == 0xb0;
+
+	/* QSGMII configuration is not currently supported. */
+	if (!is_xsgmii)
+		goto restore;
+
+	/* Apply the minimal vendor XSGMII configuration, undocumented magic. */
+	phy_write_paged(phydev, 0x4b8, 0x10, 0x8714);
+	phy_write_paged(phydev, 0x4b8, 0x12, 0x7230);
+	phy_write_paged(phydev, 0x4be, 0x16, 0x1000);
+	phy_write_paged(phydev, 0x4bf, 0x11, 0x7000);
+	phy_write_paged(phydev, 0x4bf, 0x16, 0x0042);
+	phy_write_paged(phydev, 0x4ba, 0x14, 0x9d04);
+
+	/* Reset SerDes 0. */
+	phy_write_paged(phydev, 0x400, 0x10, 0x1700);
+	phy_write_paged(phydev, 0x400, 0x10, 0x1703);
+
+	/* Disable SerDes 0 XSGMII autonegotiation. */
+	phy_modify_paged(phydev, 0x400, 0x12, GENMASK(9, 8), BIT(8));
+
+restore:
+	phy_write(phydev, RTL821x_EXT_PAGE_SELECT, oldxpage);
+	phy_write(phydev, RTL821x_PAGE_SELECT, oldpage);
+
+	return 0;
+}
+
 static int rtl8218d_config_init(struct phy_device *phydev)
 {
 	int oldpage, oldxpage;
@@ -681,7 +723,7 @@ static struct phy_driver rtl83xx_phy_driver[] = {
 	{
 		PHY_ID_MATCH_EXACT(PHY_ID_RTL8218E),
 		.name		= "REALTEK RTL8218E",
-		.config_init	= rtl821x_config_init,
+		.config_init	= rtl8218e_config_init,
 		.features	= PHY_GBIT_FEATURES,
 		.probe		= rtl8218x_phy_probe,
 		.read_mmd	= rtl821x_read_mmd,