diff --git a/drivers/marvell/comphy/phy-comphy-3700.c b/drivers/marvell/comphy/phy-comphy-3700.c
index f117f5f..175befb 100644
--- a/drivers/marvell/comphy/phy-comphy-3700.c
+++ b/drivers/marvell/comphy/phy-comphy-3700.c
@@ -422,8 +422,8 @@
 		data |= SD_SPEED_1_25_G << GEN_TX_SEL_OFFSET;
 	} else if (mode == COMPHY_2500BASEX_MODE) {
 		/* 2500Base-X, SerDes speed 3.125G */
-		data |= SD_SPEED_2_5_G << GEN_RX_SEL_OFFSET;
-		data |= SD_SPEED_2_5_G << GEN_TX_SEL_OFFSET;
+		data |= SD_SPEED_3_125_G << GEN_RX_SEL_OFFSET;
+		data |= SD_SPEED_3_125_G << GEN_TX_SEL_OFFSET;
 	} else {
 		/* Other rates are not supported */
 		ERROR("unsupported SGMII speed on comphy lane%d\n",