--- zzzz-none-000/linux-5.4.213/drivers/net/phy/vitesse.c	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/drivers/net/phy/vitesse.c	2024-08-14 09:02:07.000000000 +0000
@@ -61,6 +61,7 @@
 
 #define PHY_ID_VSC8234			0x000fc620
 #define PHY_ID_VSC8244			0x000fc6c0
+#define PHY_ID_VSC8504			0x000704c2
 #define PHY_ID_VSC8572			0x000704d0
 #define PHY_ID_VSC8601			0x00070420
 #define PHY_ID_VSC7385			0x00070450
@@ -292,6 +293,7 @@
 		err = phy_write(phydev, MII_VSC8244_IMASK,
 			(phydev->drv->phy_id == PHY_ID_VSC8234 ||
 			 phydev->drv->phy_id == PHY_ID_VSC8244 ||
+			 phydev->drv->phy_id == PHY_ID_VSC8504 ||
 			 phydev->drv->phy_id == PHY_ID_VSC8572 ||
 			 phydev->drv->phy_id == PHY_ID_VSC8601) ?
 				MII_VSC8244_IMASK_MASK :
@@ -402,6 +404,15 @@
 	.ack_interrupt	= &vsc824x_ack_interrupt,
 	.config_intr	= &vsc82xx_config_intr,
 }, {
+	.phy_id         = PHY_ID_VSC8504,
+	.name           = "Vitesse VSC8504",
+	.phy_id_mask    = 0x000ffff0,
+	/* PHY_GBIT_FEATURES */
+	.config_init    = &vsc824x_config_init,
+	.config_aneg    = &vsc82x4_config_aneg,
+	.ack_interrupt  = &vsc824x_ack_interrupt,
+	.config_intr    = &vsc82xx_config_intr,
+}, {
 	.phy_id         = PHY_ID_VSC8572,
 	.name           = "Vitesse VSC8572",
 	.phy_id_mask    = 0x000ffff0,
@@ -488,6 +499,7 @@
 static struct mdio_device_id __maybe_unused vitesse_tbl[] = {
 	{ PHY_ID_VSC8234, 0x000ffff0 },
 	{ PHY_ID_VSC8244, 0x000fffc0 },
+	{ PHY_ID_VSC8504, 0x000ffff0 },
 	{ PHY_ID_VSC8572, 0x000ffff0 },
 	{ PHY_ID_VSC7385, 0x000ffff0 },
 	{ PHY_ID_VSC7388, 0x000ffff0 },