diff --git a/arch/arm/src/stm32/Kconfig b/arch/arm/src/stm32/Kconfig
index 910922000b..d6c5fcc8b7 100644
--- a/arch/arm/src/stm32/Kconfig
+++ b/arch/arm/src/stm32/Kconfig
@@ -6828,6 +6828,15 @@ config STM32_OTGFS_SOFINTR
 	---help---
 		Enable SOF interrupts.  Why would you ever want to do that?
 
+config STM32_OTGFS_VBUS_CONTROL
+	bool "Enable VBus Control"
+	default y
+	depends on USBHOST && STM32_OTGFS
+	---help---
+		Enable VBus control.  Used when the board has VBus sensing and
+		a power switch for the OTG FS USB port.  Disable this config
+		if the board lacks this USB VBus control circuitry.
+
 endmenu
 
 menu "USB HS Host Configuration"
diff --git a/arch/arm/src/stm32/stm32_otgfshost.c b/arch/arm/src/stm32/stm32_otgfshost.c
index bf3bbc8b91..ed31cac037 100644
--- a/arch/arm/src/stm32/stm32_otgfshost.c
+++ b/arch/arm/src/stm32/stm32_otgfshost.c
@@ -5012,9 +5012,11 @@ static void stm32_vbusdrive(FAR struct stm32_usbhost_s *priv, bool state)
 {
   uint32_t regval;
 
+#ifdef CONFIG_STM32_OTGFS_VBUS_CONTROL
   /* Enable/disable the external charge pump */
 
   stm32_usbhost_vbusdrive(0, state);
+#endif
 
   /* Turn on the Host port power. */
 
@@ -5280,7 +5282,7 @@ static inline int stm32_hw_initialize(FAR struct stm32_usbhost_s *priv)
   /* Deactivate the power down */
 
   regval  = (OTGFS_GCCFG_PWRDWN | OTGFS_GCCFG_VBUSASEN | OTGFS_GCCFG_VBUSBSEN);
-#ifndef CONFIG_USBDEV_VBUSSENSING
+#if !defined(CONFIG_USBDEV_VBUSSENSING) && !defined(CONFIG_STM32_OTGFS_VBUS_CONTROL)
   regval |= OTGFS_GCCFG_NOVBUSSENS;
 #endif
 #ifdef CONFIG_STM32_OTGFS_SOFOUTPUT
@@ -5383,7 +5385,9 @@ FAR struct usbhost_connection_s *stm32_otgfshost_initialize(int controller)
 
   stm32_configgpio(GPIO_OTGFS_DM);
   stm32_configgpio(GPIO_OTGFS_DP);
+#ifdef CONFIG_USBDEV
   stm32_configgpio(GPIO_OTGFS_ID);    /* Only needed for OTG */
+#endif
 
   /* SOF output pin configuration is configurable */
 
diff --git a/arch/arm/src/stm32/stm32_usbhost.h b/arch/arm/src/stm32/stm32_usbhost.h
index 04a64190be..e4aab465f8 100644
--- a/arch/arm/src/stm32/stm32_usbhost.h
+++ b/arch/arm/src/stm32/stm32_usbhost.h
@@ -280,7 +280,9 @@ extern "C"
  *
  ***********************************************************************************/
 
+#ifdef CONFIG_STM32_OTGFS_VBUS_CONTROL
 void stm32_usbhost_vbusdrive(int iface, bool enable);
+#endif
 
 #undef EXTERN
 #if defined(__cplusplus)
diff --git a/configs/b-l475e-iot01a/README.txt b/configs/b-l475e-iot01a/README.txt
index f5a4e1c2f1..5b2ec631f3 100644
--- a/configs/b-l475e-iot01a/README.txt
+++ b/configs/b-l475e-iot01a/README.txt
@@ -553,6 +553,9 @@ Configuration sub-directories
         One remaining issue with the above is that when we fail to go to the TX
         state, there is a lot of warning debug output.  ANY debug output while
         the Spirit is heavily loaded WILL cause failures and packet loss!
-        Perhaps using a RAMLOG would remedy this.  But, even with these debug-
-        induced failures, all tests are running properly without application
-        level errors.
+        Perhaps using a RAMLOG would remedy this.
+
+        The TCP test beats the radio very hard and it is actually heartening
+        that there are no failures that lead to data loss in this environment.
+        I would say it is functional but  fragile in this usage, but probably
+        robust in a less busy environment.