diff --git a/src/mainboard/lenovo/l520/romstage.c b/src/mainboard/lenovo/l520/romstage.c
index 89bc8ef787..9bfe54aacb 100644
--- a/src/mainboard/lenovo/l520/romstage.c
+++ b/src/mainboard/lenovo/l520/romstage.c
@@ -38,8 +38,8 @@ void pch_enable_lpc(void)
 
 void mainboard_rcba_config(void)
 {
-	RCBA32(0x3414) = 0x00000000;
 }
+
 const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, -1 },
 	{ 1, 0, -1 },
diff --git a/src/mainboard/lenovo/t420/romstage.c b/src/mainboard/lenovo/t420/romstage.c
index bef256200e..aad83489dd 100644
--- a/src/mainboard/lenovo/t420/romstage.c
+++ b/src/mainboard/lenovo/t420/romstage.c
@@ -65,7 +65,6 @@ void pch_enable_lpc(void)
 
 void mainboard_rcba_config(void)
 {
-	RCBA32(BUC) = 0;
 }
 
 // OC3 set in bios to port 2-7, OC7 set in bios to port 10-13
diff --git a/src/mainboard/lenovo/t420s/romstage.c b/src/mainboard/lenovo/t420s/romstage.c
index be8052c3ba..8004e2f227 100644
--- a/src/mainboard/lenovo/t420s/romstage.c
+++ b/src/mainboard/lenovo/t420s/romstage.c
@@ -67,7 +67,6 @@ void pch_enable_lpc(void)
 
 void mainboard_rcba_config(void)
 {
-	RCBA32(BUC) = 0;
 }
 
 const struct southbridge_usb_port mainboard_usb_ports[] = {
diff --git a/src/mainboard/lenovo/t430s/romstage.c b/src/mainboard/lenovo/t430s/romstage.c
index 633ba3f142..b409b5e59b 100644
--- a/src/mainboard/lenovo/t430s/romstage.c
+++ b/src/mainboard/lenovo/t430s/romstage.c
@@ -40,7 +40,6 @@ void pch_enable_lpc(void)
 
 void mainboard_rcba_config(void)
 {
-	RCBA32(BUC) = 0;
 }
 
 const struct southbridge_usb_port mainboard_usb_ports[] = {
diff --git a/src/mainboard/lenovo/t520/romstage.c b/src/mainboard/lenovo/t520/romstage.c
index 4fcd651b6a..cdd0d459a5 100644
--- a/src/mainboard/lenovo/t520/romstage.c
+++ b/src/mainboard/lenovo/t520/romstage.c
@@ -77,7 +77,6 @@ void pch_enable_lpc(void)
 
 void mainboard_rcba_config(void)
 {
-	RCBA32(BUC) = 0;
 }
 
 const struct southbridge_usb_port mainboard_usb_ports[] = {
diff --git a/src/mainboard/lenovo/t530/romstage.c b/src/mainboard/lenovo/t530/romstage.c
index 88e07c1712..68dd69409a 100644
--- a/src/mainboard/lenovo/t530/romstage.c
+++ b/src/mainboard/lenovo/t530/romstage.c
@@ -69,7 +69,6 @@ void pch_enable_lpc(void)
 
 void mainboard_rcba_config(void)
 {
-	RCBA32(BUC) = 0;
 }
 
 void mainboard_early_init(int s3resume)
diff --git a/src/mainboard/lenovo/x220/romstage.c b/src/mainboard/lenovo/x220/romstage.c
index 96e0284313..6efcd0116e 100644
--- a/src/mainboard/lenovo/x220/romstage.c
+++ b/src/mainboard/lenovo/x220/romstage.c
@@ -50,7 +50,6 @@ void pch_enable_lpc(void)
 
 void mainboard_rcba_config(void)
 {
-	RCBA32(BUC) = 0;
 }
 
 void mainboard_fill_pei_data(struct pei_data *pei_data)
diff --git a/src/mainboard/lenovo/x230/romstage.c b/src/mainboard/lenovo/x230/romstage.c
index 1ddaedfef2..94bcab361f 100644
--- a/src/mainboard/lenovo/x230/romstage.c
+++ b/src/mainboard/lenovo/x230/romstage.c
@@ -48,7 +48,6 @@ void pch_enable_lpc(void)
 
 void mainboard_rcba_config(void)
 {
-	RCBA32(BUC) = 0;
 }
 
 const struct southbridge_usb_port mainboard_usb_ports[] = {