diff --git a/drivers/net/phy/mscc.c b/drivers/net/phy/mscc.c
index c1b73c6..72bbda5 100644
--- a/drivers/net/phy/mscc.c
+++ b/drivers/net/phy/mscc.c
@@ -19,6 +19,7 @@
 #define PHY_ID_VSC8531                  0x00070570
 #define PHY_ID_VSC8540                  0x00070760
 #define PHY_ID_VSC8541                  0x00070770
+#define PHY_ID_VSC8574			0x000704a0
 #define PHY_ID_VSC8584                  0x000707c0
 
 /* Microsemi VSC85xx PHY Register Pages */
@@ -40,6 +41,9 @@
 #define MSCC_PHY_EXT_CNTL_STATUS          22
 #define SMI_BROADCAST_WR_EN              BIT(0)
 
+/* Std Page Register 24 */
+#define MSCC_PHY_EXT_PHY_CNTL_2           24
+
 /* Std Page Register 28 - PHY AUX Control/Status */
 #define MIIM_AUX_CNTRL_STAT_REG		28
 #define MIIM_AUX_CNTRL_STAT_ACTIPHY_TO	(0x0004)
@@ -127,12 +131,15 @@
 #define DW8051_CLK_EN			BIT(4)
 #define MICRO_CLK_EN			BIT(3)
 #define MICRO_CLK_DIVIDE(x)		((x) >> 1)
+#define MSCC_DW8051_VLD_MASK		0xf1ff
 
 /* Extended page GPIO register 09G */
 #define MSCC_TRAP_ROM_ADDR(x)		((x) * 2 + 1)
+#define MSCC_TRAP_ROM_ADDR_SERDES_INIT	0x3eb7
 
 /* Extended page GPIO register 10G */
 #define MSCC_PATCH_RAM_ADDR(x)		(((x) + 1) * 2)
+#define MSCC_PATCH_RAM_ADDR_SERDES_INIT	0x4012
 
 /* Extended page GPIO register 11G */
 #define MSCC_INT_MEM_ADDR		11
@@ -166,7 +173,9 @@
 #define PROC_CMD_SGMII_MAC		  (BIT(5) | BIT(4))
 #define PROC_CMD_QSGMII_MAC		  BIT(5)
 #define PROC_CMD_NO_MAC_CONF		  (0x00 << 4)
+#define PROC_CMD_1588_DEFAULT_INIT	  BIT(4)
 #define PROC_CMD_NOP			  GENMASK(3, 0)
+#define PROC_CMD_PHY_INIT		  (BIT(3) | BIT(1))
 #define PROC_CMD_CRC16			  BIT(3)
 #define PROC_CMD_FIBER_MEDIA_CONF	  BIT(0)
 #define PROC_CMD_MCB_ACCESS_MAC_CONF	  (0x0000 << 0)
@@ -184,6 +193,10 @@
 #define MSCC_PHY_TEST_PAGE_8		8
 #define TR_CLK_DISABLE			BIT(15)
 
+#define MSCC_PHY_TEST_PAGE_9		9
+#define MSCC_PHY_TEST_PAGE_20		20
+#define MSCC_PHY_TEST_PAGE_24		24
+
 /* Token Ring Page 0x52B5 Registers */
 #define MSCC_PHY_REG_TR_ADDR_16		16
 #define MSCC_PHY_REG_TR_DATA_17		17
@@ -225,6 +238,9 @@
 #define VSC8584_REVB		0x0001
 #define MSCC_DEV_REV_MASK	GENMASK(3, 0)
 
+#define MSCC_VSC8574_REVB_INT8051_FW_START_ADDR 0x4000
+#define MSCC_VSC8574_REVB_INT8051_FW_CRC	0x29e8
+
 #define MSCC_VSC8584_REVB_INT8051_FW_START_ADDR	0xe800
 #define MSCC_VSC8584_REVB_INT8051_FW_CRC	0xfb48
 
@@ -373,6 +389,147 @@
 	return 0;
 }
 
+static const u8 fw_patch_vsc8574[] = {
+	0x46, 0x4a, 0x02, 0x43, 0x37, 0x02, 0x46, 0x26, 0x02, 0x46, 0x77, 0x02,
+	0x45, 0x60, 0x02, 0x45, 0xaf, 0xed, 0xff, 0xe5, 0xfc, 0x54, 0x38, 0x64,
+	0x20, 0x70, 0x08, 0x65, 0xff, 0x70, 0x04, 0xed, 0x44, 0x80, 0xff, 0x22,
+	0x8f, 0x19, 0x7b, 0xbb, 0x7d, 0x0e, 0x7f, 0x04, 0x12, 0x3d, 0xd7, 0xef,
+	0x4e, 0x60, 0x03, 0x02, 0x41, 0xf9, 0xe4, 0xf5, 0x1a, 0x74, 0x01, 0x7e,
+	0x00, 0xa8, 0x1a, 0x08, 0x80, 0x05, 0xc3, 0x33, 0xce, 0x33, 0xce, 0xd8,
+	0xf9, 0xff, 0xef, 0x55, 0x19, 0x70, 0x03, 0x02, 0x41, 0xed, 0x85, 0x1a,
+	0xfb, 0x7b, 0xbb, 0xe4, 0xfd, 0xff, 0x12, 0x3d, 0xd7, 0xef, 0x4e, 0x60,
+	0x03, 0x02, 0x41, 0xed, 0xe5, 0x1a, 0x54, 0x02, 0x75, 0x1d, 0x00, 0x25,
+	0xe0, 0x25, 0xe0, 0xf5, 0x1c, 0xe4, 0x78, 0xc5, 0xf6, 0xd2, 0x0a, 0x12,
+	0x41, 0xfa, 0x7b, 0xff, 0x7d, 0x12, 0x7f, 0x07, 0x12, 0x3d, 0xd7, 0xef,
+	0x4e, 0x60, 0x03, 0x02, 0x41, 0xe7, 0xc2, 0x0a, 0x74, 0xc7, 0x25, 0x1a,
+	0xf9, 0x74, 0xe7, 0x25, 0x1a, 0xf8, 0xe6, 0x27, 0xf5, 0x1b, 0xe5, 0x1d,
+	0x24, 0x5b, 0x12, 0x45, 0xea, 0x12, 0x3e, 0xda, 0x7b, 0xfc, 0x7d, 0x11,
+	0x7f, 0x07, 0x12, 0x3d, 0xd7, 0x78, 0xcc, 0xef, 0xf6, 0x78, 0xc1, 0xe6,
+	0xfe, 0xef, 0xd3, 0x9e, 0x40, 0x06, 0x78, 0xcc, 0xe6, 0x78, 0xc1, 0xf6,
+	0x12, 0x41, 0xfa, 0x7b, 0xec, 0x7d, 0x12, 0x7f, 0x07, 0x12, 0x3d, 0xd7,
+	0x78, 0xcb, 0xef, 0xf6, 0xbf, 0x07, 0x06, 0x78, 0xc3, 0x76, 0x1a, 0x80,
+	0x1f, 0x78, 0xc5, 0xe6, 0xff, 0x60, 0x0f, 0xc3, 0xe5, 0x1b, 0x9f, 0xff,
+	0x78, 0xcb, 0xe6, 0x85, 0x1b, 0xf0, 0xa4, 0x2f, 0x80, 0x07, 0x78, 0xcb,
+	0xe6, 0x85, 0x1b, 0xf0, 0xa4, 0x78, 0xc3, 0xf6, 0xe4, 0x78, 0xc2, 0xf6,
+	0x78, 0xc2, 0xe6, 0xff, 0xc3, 0x08, 0x96, 0x40, 0x03, 0x02, 0x41, 0xd1,
+	0xef, 0x54, 0x03, 0x60, 0x33, 0x14, 0x60, 0x46, 0x24, 0xfe, 0x60, 0x42,
+	0x04, 0x70, 0x4b, 0xef, 0x24, 0x02, 0xff, 0xe4, 0x33, 0xfe, 0xef, 0x78,
+	0x02, 0xce, 0xa2, 0xe7, 0x13, 0xce, 0x13, 0xd8, 0xf8, 0xff, 0xe5, 0x1d,
+	0x24, 0x5c, 0xcd, 0xe5, 0x1c, 0x34, 0xf0, 0xcd, 0x2f, 0xff, 0xed, 0x3e,
+	0xfe, 0x12, 0x46, 0x0d, 0x7d, 0x11, 0x80, 0x0b, 0x78, 0xc2, 0xe6, 0x70,
+	0x04, 0x7d, 0x11, 0x80, 0x02, 0x7d, 0x12, 0x7f, 0x07, 0x12, 0x3e, 0x9a,
+	0x8e, 0x1e, 0x8f, 0x1f, 0x80, 0x03, 0xe5, 0x1e, 0xff, 0x78, 0xc5, 0xe6,
+	0x06, 0x24, 0xcd, 0xf8, 0xa6, 0x07, 0x78, 0xc2, 0x06, 0xe6, 0xb4, 0x1a,
+	0x0a, 0xe5, 0x1d, 0x24, 0x5c, 0x12, 0x45, 0xea, 0x12, 0x3e, 0xda, 0x78,
+	0xc5, 0xe6, 0x65, 0x1b, 0x70, 0x82, 0x75, 0xdb, 0x20, 0x75, 0xdb, 0x28,
+	0x12, 0x46, 0x02, 0x12, 0x46, 0x02, 0xe5, 0x1a, 0x12, 0x45, 0xf5, 0xe5,
+	0x1a, 0xc3, 0x13, 0x12, 0x45, 0xf5, 0x78, 0xc5, 0x16, 0xe6, 0x24, 0xcd,
+	0xf8, 0xe6, 0xff, 0x7e, 0x08, 0x1e, 0xef, 0xa8, 0x06, 0x08, 0x80, 0x02,
+	0xc3, 0x13, 0xd8, 0xfc, 0xfd, 0xc4, 0x33, 0x54, 0xe0, 0xf5, 0xdb, 0xef,
+	0xa8, 0x06, 0x08, 0x80, 0x02, 0xc3, 0x13, 0xd8, 0xfc, 0xfd, 0xc4, 0x33,
+	0x54, 0xe0, 0x44, 0x08, 0xf5, 0xdb, 0xee, 0x70, 0xd8, 0x78, 0xc5, 0xe6,
+	0x70, 0xc8, 0x75, 0xdb, 0x10, 0x02, 0x40, 0xfd, 0x78, 0xc2, 0xe6, 0xc3,
+	0x94, 0x17, 0x50, 0x0e, 0xe5, 0x1d, 0x24, 0x62, 0x12, 0x42, 0x08, 0xe5,
+	0x1d, 0x24, 0x5c, 0x12, 0x42, 0x08, 0x20, 0x0a, 0x03, 0x02, 0x40, 0x76,
+	0x05, 0x1a, 0xe5, 0x1a, 0xc3, 0x94, 0x04, 0x50, 0x03, 0x02, 0x40, 0x3a,
+	0x22, 0xe5, 0x1d, 0x24, 0x5c, 0xff, 0xe5, 0x1c, 0x34, 0xf0, 0xfe, 0x12,
+	0x46, 0x0d, 0x22, 0xff, 0xe5, 0x1c, 0x34, 0xf0, 0xfe, 0x12, 0x46, 0x0d,
+	0x22, 0xe4, 0xf5, 0x19, 0x12, 0x46, 0x43, 0x20, 0xe7, 0x1e, 0x7b, 0xfe,
+	0x12, 0x42, 0xf9, 0xef, 0xc4, 0x33, 0x33, 0x54, 0xc0, 0xff, 0xc0, 0x07,
+	0x7b, 0x54, 0x12, 0x42, 0xf9, 0xd0, 0xe0, 0x4f, 0xff, 0x74, 0x2a, 0x25,
+	0x19, 0xf8, 0xa6, 0x07, 0x12, 0x46, 0x43, 0x20, 0xe7, 0x03, 0x02, 0x42,
+	0xdf, 0x54, 0x03, 0x64, 0x03, 0x70, 0x03, 0x02, 0x42, 0xcf, 0x7b, 0xcb,
+	0x12, 0x43, 0x2c, 0x8f, 0xfb, 0x7b, 0x30, 0x7d, 0x03, 0xe4, 0xff, 0x12,
+	0x3d, 0xd7, 0xc3, 0xef, 0x94, 0x02, 0xee, 0x94, 0x00, 0x50, 0x2a, 0x12,
+	0x42, 0xec, 0xef, 0x4e, 0x70, 0x23, 0x12, 0x43, 0x04, 0x60, 0x0a, 0x12,
+	0x43, 0x12, 0x70, 0x0c, 0x12, 0x43, 0x1f, 0x70, 0x07, 0x12, 0x46, 0x39,
+	0x7b, 0x03, 0x80, 0x07, 0x12, 0x46, 0x39, 0x12, 0x46, 0x43, 0xfb, 0x7a,
+	0x00, 0x7d, 0x54, 0x80, 0x3e, 0x12, 0x42, 0xec, 0xef, 0x4e, 0x70, 0x24,
+	0x12, 0x43, 0x04, 0x60, 0x0a, 0x12, 0x43, 0x12, 0x70, 0x0f, 0x12, 0x43,
+	0x1f, 0x70, 0x0a, 0x12, 0x46, 0x39, 0xe4, 0xfb, 0xfa, 0x7d, 0xee, 0x80,
+	0x1e, 0x12, 0x46, 0x39, 0x7b, 0x01, 0x7a, 0x00, 0x7d, 0xee, 0x80, 0x13,
+	0x12, 0x46, 0x39, 0x12, 0x46, 0x43, 0x54, 0x40, 0xfe, 0xc4, 0x13, 0x13,
+	0x54, 0x03, 0xfb, 0x7a, 0x00, 0x7d, 0xee, 0x12, 0x38, 0xbd, 0x7b, 0xff,
+	0x12, 0x43, 0x2c, 0xef, 0x4e, 0x70, 0x07, 0x74, 0x2a, 0x25, 0x19, 0xf8,
+	0xe4, 0xf6, 0x05, 0x19, 0xe5, 0x19, 0xc3, 0x94, 0x02, 0x50, 0x03, 0x02,
+	0x42, 0x15, 0x22, 0xe5, 0x19, 0x24, 0x17, 0xfd, 0x7b, 0x20, 0x7f, 0x04,
+	0x12, 0x3d, 0xd7, 0x22, 0xe5, 0x19, 0x24, 0x17, 0xfd, 0x7f, 0x04, 0x12,
+	0x3d, 0xd7, 0x22, 0x7b, 0x22, 0x7d, 0x18, 0x7f, 0x06, 0x12, 0x3d, 0xd7,
+	0xef, 0x64, 0x01, 0x4e, 0x22, 0x7d, 0x1c, 0xe4, 0xff, 0x12, 0x3e, 0x9a,
+	0xef, 0x54, 0x1b, 0x64, 0x0a, 0x22, 0x7b, 0xcc, 0x7d, 0x10, 0xff, 0x12,
+	0x3d, 0xd7, 0xef, 0x64, 0x01, 0x4e, 0x22, 0xe5, 0x19, 0x24, 0x17, 0xfd,
+	0x7f, 0x04, 0x12, 0x3d, 0xd7, 0x22, 0xd2, 0x08, 0x75, 0xfb, 0x03, 0xab,
+	0x7e, 0xaa, 0x7d, 0x7d, 0x19, 0x7f, 0x03, 0x12, 0x3e, 0xda, 0xe5, 0x7e,
+	0x54, 0x0f, 0x24, 0xf3, 0x60, 0x03, 0x02, 0x43, 0xe9, 0x12, 0x46, 0x5a,
+	0x12, 0x46, 0x61, 0xd8, 0xfb, 0xff, 0x20, 0xe2, 0x35, 0x13, 0x92, 0x0c,
+	0xef, 0xa2, 0xe1, 0x92, 0x0b, 0x30, 0x0c, 0x2a, 0xe4, 0xf5, 0x10, 0x7b,
+	0xfe, 0x12, 0x43, 0xff, 0xef, 0xc4, 0x33, 0x33, 0x54, 0xc0, 0xff, 0xc0,
+	0x07, 0x7b, 0x54, 0x12, 0x43, 0xff, 0xd0, 0xe0, 0x4f, 0xff, 0x74, 0x2a,
+	0x25, 0x10, 0xf8, 0xa6, 0x07, 0x05, 0x10, 0xe5, 0x10, 0xc3, 0x94, 0x02,
+	0x40, 0xd9, 0x12, 0x46, 0x5a, 0x12, 0x46, 0x61, 0xd8, 0xfb, 0x54, 0x05,
+	0x64, 0x04, 0x70, 0x27, 0x78, 0xc4, 0xe6, 0x78, 0xc6, 0xf6, 0xe5, 0x7d,
+	0xff, 0x33, 0x95, 0xe0, 0xef, 0x54, 0x0f, 0x78, 0xc4, 0xf6, 0x12, 0x44,
+	0x0a, 0x20, 0x0c, 0x0c, 0x12, 0x46, 0x5a, 0x12, 0x46, 0x61, 0xd8, 0xfb,
+	0x13, 0x92, 0x0d, 0x22, 0xc2, 0x0d, 0x22, 0x12, 0x46, 0x5a, 0x12, 0x46,
+	0x61, 0xd8, 0xfb, 0x54, 0x05, 0x64, 0x05, 0x70, 0x1e, 0x78, 0xc4, 0x7d,
+	0xb8, 0x12, 0x43, 0xf5, 0x78, 0xc1, 0x7d, 0x74, 0x12, 0x43, 0xf5, 0xe4,
+	0x78, 0xc1, 0xf6, 0x22, 0x7b, 0x01, 0x7a, 0x00, 0x7d, 0xee, 0x7f, 0x92,
+	0x12, 0x38, 0xbd, 0x22, 0xe6, 0xfb, 0x7a, 0x00, 0x7f, 0x92, 0x12, 0x38,
+	0xbd, 0x22, 0xe5, 0x10, 0x24, 0x17, 0xfd, 0x7f, 0x04, 0x12, 0x3d, 0xd7,
+	0x22, 0x78, 0xc1, 0xe6, 0xfb, 0x7a, 0x00, 0x7d, 0x74, 0x7f, 0x92, 0x12,
+	0x38, 0xbd, 0xe4, 0x78, 0xc1, 0xf6, 0xf5, 0x11, 0x74, 0x01, 0x7e, 0x00,
+	0xa8, 0x11, 0x08, 0x80, 0x05, 0xc3, 0x33, 0xce, 0x33, 0xce, 0xd8, 0xf9,
+	0xff, 0x78, 0xc4, 0xe6, 0xfd, 0xef, 0x5d, 0x60, 0x44, 0x85, 0x11, 0xfb,
+	0xe5, 0x11, 0x54, 0x02, 0x25, 0xe0, 0x25, 0xe0, 0xfe, 0xe4, 0x24, 0x5b,
+	0xfb, 0xee, 0x12, 0x45, 0xed, 0x12, 0x3e, 0xda, 0x7b, 0x40, 0x7d, 0x11,
+	0x7f, 0x07, 0x12, 0x3d, 0xd7, 0x74, 0xc7, 0x25, 0x11, 0xf8, 0xa6, 0x07,
+	0x7b, 0x11, 0x7d, 0x12, 0x7f, 0x07, 0x12, 0x3d, 0xd7, 0xef, 0x4e, 0x60,
+	0x09, 0x74, 0xe7, 0x25, 0x11, 0xf8, 0x76, 0x04, 0x80, 0x07, 0x74, 0xe7,
+	0x25, 0x11, 0xf8, 0x76, 0x0a, 0x05, 0x11, 0xe5, 0x11, 0xc3, 0x94, 0x04,
+	0x40, 0x9a, 0x78, 0xc6, 0xe6, 0x70, 0x15, 0x78, 0xc4, 0xe6, 0x60, 0x10,
+	0x75, 0xd9, 0x38, 0x75, 0xdb, 0x10, 0x7d, 0xfe, 0x12, 0x44, 0xb8, 0x7d,
+	0x76, 0x12, 0x44, 0xb8, 0x79, 0xc6, 0xe7, 0x78, 0xc4, 0x66, 0xff, 0x60,
+	0x03, 0x12, 0x40, 0x25, 0x78, 0xc4, 0xe6, 0x70, 0x09, 0xfb, 0xfa, 0x7d,
+	0xfe, 0x7f, 0x8e, 0x12, 0x38, 0xbd, 0x22, 0x7b, 0x01, 0x7a, 0x00, 0x7f,
+	0x8e, 0x12, 0x38, 0xbd, 0x22, 0xe4, 0xf5, 0xfb, 0x7d, 0x1c, 0xe4, 0xff,
+	0x12, 0x3e, 0x9a, 0xad, 0x07, 0xac, 0x06, 0xec, 0x54, 0xc0, 0xff, 0xed,
+	0x54, 0x3f, 0x4f, 0xf5, 0x20, 0x30, 0x06, 0x2c, 0x30, 0x01, 0x08, 0xa2,
+	0x04, 0x72, 0x03, 0x92, 0x07, 0x80, 0x21, 0x30, 0x04, 0x06, 0x7b, 0xcc,
+	0x7d, 0x11, 0x80, 0x0d, 0x30, 0x03, 0x06, 0x7b, 0xcc, 0x7d, 0x10, 0x80,
+	0x04, 0x7b, 0x66, 0x7d, 0x16, 0xe4, 0xff, 0x12, 0x3d, 0xd7, 0xee, 0x4f,
+	0x24, 0xff, 0x92, 0x07, 0xaf, 0xfb, 0x74, 0x26, 0x2f, 0xf8, 0xe6, 0xff,
+	0xa6, 0x20, 0x20, 0x07, 0x39, 0x8f, 0x20, 0x30, 0x07, 0x34, 0x30, 0x00,
+	0x31, 0x20, 0x04, 0x2e, 0x20, 0x03, 0x2b, 0xe4, 0xf5, 0xff, 0x75, 0xfc,
+	0xc2, 0xe5, 0xfc, 0x30, 0xe0, 0xfb, 0xaf, 0xfe, 0xef, 0x20, 0xe3, 0x1a,
+	0xae, 0xfd, 0x44, 0x08, 0xf5, 0xfe, 0x75, 0xfc, 0x80, 0xe5, 0xfc, 0x30,
+	0xe0, 0xfb, 0x8f, 0xfe, 0x8e, 0xfd, 0x75, 0xfc, 0x80, 0xe5, 0xfc, 0x30,
+	0xe0, 0xfb, 0x05, 0xfb, 0xaf, 0xfb, 0xef, 0xc3, 0x94, 0x04, 0x50, 0x03,
+	0x02, 0x44, 0xc5, 0xe4, 0xf5, 0xfb, 0x22, 0xe5, 0x7e, 0x54, 0x0f, 0x64,
+	0x01, 0x70, 0x23, 0xe5, 0x7e, 0x30, 0xe4, 0x1e, 0x90, 0x47, 0xd0, 0xe0,
+	0x44, 0x02, 0xf0, 0x54, 0xfb, 0xf0, 0x90, 0x47, 0xd4, 0xe0, 0x44, 0x04,
+	0xf0, 0x7b, 0x03, 0x7d, 0x5b, 0x7f, 0x5d, 0x12, 0x36, 0x29, 0x7b, 0x0e,
+	0x80, 0x1c, 0x90, 0x47, 0xd0, 0xe0, 0x54, 0xfd, 0xf0, 0x44, 0x04, 0xf0,
+	0x90, 0x47, 0xd4, 0xe0, 0x54, 0xfb, 0xf0, 0x7b, 0x02, 0x7d, 0x5b, 0x7f,
+	0x5d, 0x12, 0x36, 0x29, 0x7b, 0x06, 0x7d, 0x60, 0x7f, 0x63, 0x12, 0x36,
+	0x29, 0x22, 0xe5, 0x7e, 0x30, 0xe5, 0x35, 0x30, 0xe4, 0x0b, 0x7b, 0x02,
+	0x7d, 0x33, 0x7f, 0x35, 0x12, 0x36, 0x29, 0x80, 0x10, 0x7b, 0x01, 0x7d,
+	0x33, 0x7f, 0x35, 0x12, 0x36, 0x29, 0x90, 0x47, 0xd2, 0xe0, 0x44, 0x04,
+	0xf0, 0x90, 0x47, 0xd2, 0xe0, 0x54, 0xf7, 0xf0, 0x90, 0x47, 0xd1, 0xe0,
+	0x44, 0x10, 0xf0, 0x7b, 0x05, 0x7d, 0x84, 0x7f, 0x86, 0x12, 0x36, 0x29,
+	0x22, 0xfb, 0xe5, 0x1c, 0x34, 0xf0, 0xfa, 0x7d, 0x10, 0x7f, 0x07, 0x22,
+	0x54, 0x01, 0xc4, 0x33, 0x54, 0xe0, 0xf5, 0xdb, 0x44, 0x08, 0xf5, 0xdb,
+	0x22, 0xf5, 0xdb, 0x75, 0xdb, 0x08, 0xf5, 0xdb, 0x75, 0xdb, 0x08, 0x22,
+	0xab, 0x07, 0xaa, 0x06, 0x7d, 0x10, 0x7f, 0x07, 0x12, 0x3e, 0xda, 0x7b,
+	0xff, 0x7d, 0x10, 0x7f, 0x07, 0x12, 0x3d, 0xd7, 0xef, 0x4e, 0x60, 0xf3,
+	0x22, 0x12, 0x44, 0xc2, 0x30, 0x0c, 0x03, 0x12, 0x42, 0x12, 0x78, 0xc4,
+	0xe6, 0xff, 0x60, 0x03, 0x12, 0x40, 0x25, 0x22, 0xe5, 0x19, 0x24, 0x17,
+	0x54, 0x1f, 0x44, 0x80, 0xff, 0x22, 0x74, 0x2a, 0x25, 0x19, 0xf8, 0xe6,
+	0x22, 0x12, 0x46, 0x72, 0x12, 0x46, 0x68, 0x90, 0x47, 0xfa, 0xe0, 0x54,
+	0xf8, 0x44, 0x02, 0xf0, 0x22, 0xe5, 0x7e, 0xae, 0x7d, 0x78, 0x04, 0x22,
+	0xce, 0xa2, 0xe7, 0x13, 0xce, 0x13, 0x22, 0xe4, 0x78, 0xc4, 0xf6, 0xc2,
+	0x0d, 0x78, 0xc1, 0xf6, 0x22, 0xc2, 0x0c, 0xc2, 0x0b, 0x22, 0x22,
+};
+
 static const u8 fw_patch_vsc8584[] = {
 	0xe8, 0x59, 0x02, 0xe8, 0x12, 0x02, 0xe8, 0x42, 0x02, 0xe8, 0x5a, 0x02,
 	0xe8, 0x5b, 0x02, 0xe8, 0x5c, 0xe5, 0x69, 0x54, 0x0f, 0x24, 0xf7, 0x60,
@@ -451,6 +608,247 @@
 	return 0;
 }
 
+static bool vsc8574_is_serdes_init(struct mii_dev *bus, int phy)
+{
+	u16 reg;
+	bool ret;
+
+	bus->write(bus, phy, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+		   MSCC_PHY_PAGE_GPIO);
+
+	reg = bus->read(bus, phy, MDIO_DEVAD_NONE, MSCC_TRAP_ROM_ADDR(1));
+	if (reg != MSCC_TRAP_ROM_ADDR_SERDES_INIT) {
+		ret = false;
+		goto out;
+	}
+
+	reg = bus->read(bus, phy, MDIO_DEVAD_NONE, MSCC_PATCH_RAM_ADDR(1));
+	if (reg != MSCC_PATCH_RAM_ADDR_SERDES_INIT) {
+		ret = false;
+		goto out;
+	}
+
+	reg = bus->read(bus, phy, MDIO_DEVAD_NONE, MSCC_INT_MEM_CNTL);
+	if (reg != EN_PATCH_RAM_TRAP_ADDR(1)) {
+		ret = false;
+		goto out;
+	}
+
+	reg = bus->read(bus, phy, MDIO_DEVAD_NONE, MSCC_DW8051_CNTL_STATUS);
+	if ((MICRO_NSOFT_RESET | RUN_FROM_INT_ROM |  DW8051_CLK_EN |
+	     MICRO_CLK_EN) != (reg & MSCC_DW8051_VLD_MASK)) {
+		ret = false;
+		goto out;
+	}
+
+	ret = true;
+
+out:
+	bus->write(bus, phy, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+		   MSCC_PHY_PAGE_GPIO);
+
+	return ret;
+}
+
+static int vsc8574_config_pre_init(struct phy_device *phydev)
+{
+	struct mii_dev *bus = phydev->bus;
+	u16 crc, reg, phy0, addr;
+	bool serdes_init;
+	int ret;
+
+	phy_write(phydev, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+		  MSCC_PHY_PAGE_EXT1);
+	addr = phy_read(phydev, MDIO_DEVAD_NONE, MSCC_PHY_EXT_PHY_CNTL_4);
+	addr >>= PHY_CNTL_4_ADDR_POS;
+
+	reg = phy_read(phydev, MDIO_DEVAD_NONE, MSCC_PHY_ACTIPHY_CNTL);
+	if (reg & PHY_ADDR_REVERSED)
+		phy0 = phydev->addr + addr;
+	else
+		phy0 = phydev->addr - addr;
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+		   MSCC_PHY_PAGE_STD);
+
+	/* all writes below are broadcasted to all PHYs in the same package */
+	reg = bus->read(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_EXT_CNTL_STATUS);
+	reg |= SMI_BROADCAST_WR_EN;
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_EXT_CNTL_STATUS, reg);
+
+	/*
+	 * The below register writes are tweaking analog and electrical
+	 * configuration that were determined through characterization by PHY
+	 * engineers. These don't mean anything more than "these are the best
+	 * values".
+	 */
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_EXT_PHY_CNTL_2, 0x0040);
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+		   MSCC_PHY_PAGE_TEST);
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_TEST_PAGE_20, 0x4320);
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_TEST_PAGE_24, 0x0c00);
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_TEST_PAGE_9, 0x18ca);
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_TEST_PAGE_5, 0x1b20);
+
+	reg = bus->read(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_TEST_PAGE_8);
+	reg |= TR_CLK_DISABLE;
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_TEST_PAGE_8, reg);
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+		   MSCC_PHY_PAGE_TR);
+
+	vsc8584_csr_write(bus, phy0, 0x0fae, 0x000401bd);
+	vsc8584_csr_write(bus, phy0, 0x0fac, 0x000f000f);
+	vsc8584_csr_write(bus, phy0, 0x17a0, 0x00a0f147);
+	vsc8584_csr_write(bus, phy0, 0x0fe4, 0x00052f54);
+	vsc8584_csr_write(bus, phy0, 0x1792, 0x0027303d);
+	vsc8584_csr_write(bus, phy0, 0x07fe, 0x00000704);
+	vsc8584_csr_write(bus, phy0, 0x0fe0, 0x00060150);
+	vsc8584_csr_write(bus, phy0, 0x0f82, 0x0012b00a);
+	vsc8584_csr_write(bus, phy0, 0x0f80, 0x00000d74);
+	vsc8584_csr_write(bus, phy0, 0x02e0, 0x00000012);
+	vsc8584_csr_write(bus, phy0, 0x03a2, 0x00050208);
+	vsc8584_csr_write(bus, phy0, 0x03b2, 0x00009186);
+	vsc8584_csr_write(bus, phy0, 0x0fb0, 0x000e3700);
+	vsc8584_csr_write(bus, phy0, 0x1688, 0x00049f81);
+	vsc8584_csr_write(bus, phy0, 0x0fd2, 0x0000ffff);
+	vsc8584_csr_write(bus, phy0, 0x168a, 0x00039fa2);
+	vsc8584_csr_write(bus, phy0, 0x1690, 0x0020640b);
+	vsc8584_csr_write(bus, phy0, 0x0258, 0x00002220);
+	vsc8584_csr_write(bus, phy0, 0x025a, 0x00002a20);
+	vsc8584_csr_write(bus, phy0, 0x025c, 0x00003060);
+	vsc8584_csr_write(bus, phy0, 0x025e, 0x00003fa0);
+	vsc8584_csr_write(bus, phy0, 0x03a6, 0x0000e0f0);
+	vsc8584_csr_write(bus, phy0, 0x0f92, 0x00001489);
+	vsc8584_csr_write(bus, phy0, 0x16a2, 0x00007000);
+	vsc8584_csr_write(bus, phy0, 0x16a6, 0x00071448);
+	vsc8584_csr_write(bus, phy0, 0x16a0, 0x00eeffdd);
+	vsc8584_csr_write(bus, phy0, 0x0fe8, 0x0091b06c);
+	vsc8584_csr_write(bus, phy0, 0x0fea, 0x00041600);
+	vsc8584_csr_write(bus, phy0, 0x16b0, 0x00eeff00);
+	vsc8584_csr_write(bus, phy0, 0x16b2, 0x00007000);
+	vsc8584_csr_write(bus, phy0, 0x16b4, 0x00000814);
+	vsc8584_csr_write(bus, phy0, 0x0f90, 0x00688980);
+	vsc8584_csr_write(bus, phy0, 0x03a4, 0x0000d8f0);
+	vsc8584_csr_write(bus, phy0, 0x0fc0, 0x00000400);
+	vsc8584_csr_write(bus, phy0, 0x07fa, 0x0050100f);
+	vsc8584_csr_write(bus, phy0, 0x0796, 0x00000003);
+	vsc8584_csr_write(bus, phy0, 0x07f8, 0x00c3ff98);
+	vsc8584_csr_write(bus, phy0, 0x0fa4, 0x0018292a);
+	vsc8584_csr_write(bus, phy0, 0x168c, 0x00d2c46f);
+	vsc8584_csr_write(bus, phy0, 0x17a2, 0x00000620);
+	vsc8584_csr_write(bus, phy0, 0x16a4, 0x0013132f);
+	vsc8584_csr_write(bus, phy0, 0x16a8, 0x00000000);
+	vsc8584_csr_write(bus, phy0, 0x0ffc, 0x00c0a028);
+	vsc8584_csr_write(bus, phy0, 0x0fec, 0x00901c09);
+	vsc8584_csr_write(bus, phy0, 0x0fee, 0x0004a6a1);
+	vsc8584_csr_write(bus, phy0, 0x0ffe, 0x00b01807);
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+			MSCC_PHY_PAGE_EXT2);
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+		   MSCC_PHY_PAGE_TR);
+
+	vsc8584_csr_write(bus, phy0, 0x0486, 0x0008a518);
+	vsc8584_csr_write(bus, phy0, 0x0488, 0x006dc696);
+	vsc8584_csr_write(bus, phy0, 0x048a, 0x00000912);
+	vsc8584_csr_write(bus, phy0, 0x048e, 0x00000db6);
+	vsc8584_csr_write(bus, phy0, 0x049c, 0x00596596);
+	vsc8584_csr_write(bus, phy0, 0x049e, 0x00000514);
+	vsc8584_csr_write(bus, phy0, 0x04a2, 0x00410280);
+	vsc8584_csr_write(bus, phy0, 0x04a4, 0x00000000);
+	vsc8584_csr_write(bus, phy0, 0x04a6, 0x00000000);
+	vsc8584_csr_write(bus, phy0, 0x04a8, 0x00000000);
+	vsc8584_csr_write(bus, phy0, 0x04aa, 0x00000000);
+	vsc8584_csr_write(bus, phy0, 0x04ae, 0x007df7dd);
+	vsc8584_csr_write(bus, phy0, 0x04b0, 0x006d95d4);
+	vsc8584_csr_write(bus, phy0, 0x04b2, 0x00492410);
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+		   MSCC_PHY_PAGE_TEST);
+
+	reg = bus->read(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_TEST_PAGE_8);
+	reg &= ~TR_CLK_DISABLE;
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_TEST_PAGE_8, reg);
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+			MSCC_PHY_PAGE_STD);
+
+	/* end of write broadcasting */
+	reg = bus->read(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_EXT_CNTL_STATUS);
+	reg &= ~SMI_BROADCAST_WR_EN;
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PHY_EXT_CNTL_STATUS, reg);
+
+	ret = vsc8584_get_fw_crc(bus, phy0,
+				 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR, &crc,
+				 fw_patch_vsc8574,
+				 ARRAY_SIZE(fw_patch_vsc8574));
+	if (ret)
+		goto out;
+
+	if (crc == MSCC_VSC8574_REVB_INT8051_FW_CRC) {
+		serdes_init = vsc8574_is_serdes_init(bus, phy0);
+
+		if (!serdes_init) {
+			ret = vsc8584_micro_assert_reset(bus, phy0);
+			if (ret) {
+				pr_err("failed to assert reset of micro\n");
+				return ret;
+			}
+		}
+	} else {
+		pr_debug("FW CRC is not the expected one, patching FW\n");
+
+		serdes_init = false;
+
+		if (vsc8584_patch_fw(bus, phy0, fw_patch_vsc8574,
+				     ARRAY_SIZE(fw_patch_vsc8574)))
+			pr_warn("failed to patch FW, expect non-optimal device\n");
+	}
+
+	if (!serdes_init) {
+		bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+				MSCC_PHY_PAGE_GPIO);
+
+		bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_TRAP_ROM_ADDR(1),
+			   MSCC_TRAP_ROM_ADDR_SERDES_INIT);
+		bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_PATCH_RAM_ADDR(1),
+			   MSCC_PATCH_RAM_ADDR_SERDES_INIT);
+
+		bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_INT_MEM_CNTL,
+				EN_PATCH_RAM_TRAP_ADDR(1));
+
+		vsc8584_micro_deassert_reset(bus, phy0, false);
+
+		ret = vsc8584_get_fw_crc(bus, phy0,
+					 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR,
+					 &crc, fw_patch_vsc8574,
+					 ARRAY_SIZE(fw_patch_vsc8574));
+		if (ret)
+			goto out;
+
+		if (crc != MSCC_VSC8574_REVB_INT8051_FW_CRC)
+			pr_warn("FW CRC after patching is not the expected one, expect non-optimal device\n");
+	}
+
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+		   MSCC_PHY_PAGE_GPIO);
+
+	ret = vsc8584_cmd(bus, phy0, PROC_CMD_1588_DEFAULT_INIT |
+			  PROC_CMD_PHY_INIT);
+
+out:
+	bus->write(bus, phy0, MDIO_DEVAD_NONE, MSCC_EXT_PAGE_ACCESS,
+			MSCC_PHY_PAGE_STD);
+
+	return ret;
+}
+
 static int vsc8584_config_pre_init(struct phy_device *phydev)
 {
 	struct mii_dev *bus = phydev->bus;
@@ -1010,6 +1408,17 @@
 	return genphy_config(phydev);
 }
 
+static struct vsc85xx_priv vsc8574_priv = {
+	.config_pre = vsc8574_config_pre_init,
+};
+
+static int vsc8574_config(struct phy_device *phydev)
+{
+	phydev->priv = &vsc8574_priv;
+
+	return vsc8584_config_init(phydev);
+}
+
 static struct vsc85xx_priv vsc8584_priv = {
 	.config_pre = vsc8584_config_pre_init,
 };
@@ -1061,6 +1470,16 @@
 	.shutdown = &genphy_shutdown,
 };
 
+static struct phy_driver VSC8574_driver = {
+	.name = "Microsemi VSC8574",
+	.uid = PHY_ID_VSC8574,
+	.mask = 0x000ffff0,
+	.features = PHY_GBIT_FEATURES,
+	.config = &vsc8574_config,
+	.startup = &mscc_startup,
+	.shutdown = &genphy_shutdown,
+};
+
 static struct phy_driver VSC8584_driver = {
 	.name = "Microsemi VSC8584",
 	.uid = PHY_ID_VSC8584,
@@ -1077,6 +1496,7 @@
 	phy_register(&VSC8531_driver);
 	phy_register(&VSC8540_driver);
 	phy_register(&VSC8541_driver);
+	phy_register(&VSC8574_driver);
 	phy_register(&VSC8584_driver);
 
 	return 0;