diff --git a/src/soc/intel/broadwell/include/soc/sata.h b/src/soc/intel/broadwell/include/soc/sata.h
index 357fe584af..73e7b3150a 100644
--- a/src/soc/intel/broadwell/include/soc/sata.h
+++ b/src/soc/intel/broadwell/include/soc/sata.h
@@ -25,8 +25,12 @@
 #define SATA_SP			0xd0 /* Scratchpad */
 
 /* SATA IOBP Registers */
-#define SATA_IOBP_SP0G3IR	0xea000151
-#define SATA_IOBP_SP1G3IR	0xea000051
+#define SATA_IOBP_SP0_SECRT88	0xea002688
+#define SATA_IOBP_SP1_SECRT88	0xea002488
+
+#define SATA_SECRT88_VADJ_MASK	0xff
+#define SATA_SECRT88_VADJ_SHIFT	16
+
 #define SATA_IOBP_SP0DTLE_DATA	0xea002550
 #define SATA_IOBP_SP0DTLE_EDGE	0xea002554
 #define SATA_IOBP_SP1DTLE_DATA	0xea002750
diff --git a/src/soc/intel/broadwell/sata.c b/src/soc/intel/broadwell/sata.c
index cfb3854831..fd1e9f156a 100644
--- a/src/soc/intel/broadwell/sata.c
+++ b/src/soc/intel/broadwell/sata.c
@@ -138,12 +138,20 @@ static void sata_init(struct device *dev)
 
 	/* Set Gen3 Transmitter settings if needed */
 	if (config->sata_port0_gen3_tx)
-		pch_iobp_update(SATA_IOBP_SP0G3IR, 0,
-				config->sata_port0_gen3_tx);
+		pch_iobp_update(SATA_IOBP_SP0_SECRT88,
+				~(SATA_SECRT88_VADJ_MASK <<
+				  SATA_SECRT88_VADJ_SHIFT),
+				(config->sata_port0_gen3_tx &
+				 SATA_SECRT88_VADJ_MASK)
+				<< SATA_SECRT88_VADJ_SHIFT);
 
 	if (config->sata_port1_gen3_tx)
-		pch_iobp_update(SATA_IOBP_SP1G3IR, 0,
-				config->sata_port1_gen3_tx);
+		pch_iobp_update(SATA_IOBP_SP1_SECRT88,
+				~(SATA_SECRT88_VADJ_MASK <<
+				  SATA_SECRT88_VADJ_SHIFT),
+				(config->sata_port1_gen3_tx &
+				 SATA_SECRT88_VADJ_MASK)
+				<< SATA_SECRT88_VADJ_SHIFT);
 
 	/* Set Gen3 DTLE DATA / EDGE registers if needed */
 	if (config->sata_port0_gen3_dtle) {