diff --git a/arch/arm/src/stm32/stm32_otgfshost.c b/arch/arm/src/stm32/stm32_otgfshost.c
index 431d438ed74..f481f7718dd 100644
--- a/arch/arm/src/stm32/stm32_otgfshost.c
+++ b/arch/arm/src/stm32/stm32_otgfshost.c
@@ -4839,7 +4839,7 @@ static void stm32_flush_txfifos(uint32_t txfnum)
   /* Initiate the TX FIFO flush operation */
 
   regval = OTGFS_GRSTCTL_TXFFLSH | txfnum;
-  stm32_putreg(regval, STM32_OTGFS_GRSTCTL);
+  stm32_putreg(STM32_OTGFS_GRSTCTL, regval);
 
   /* Wait for the FLUSH to complete */
 
@@ -4878,7 +4878,7 @@ static void stm32_flush_rxfifo(void)
 
   /* Initiate the RX FIFO flush operation */
 
-  stm32_putreg(OTGFS_GRSTCTL_RXFFLSH, STM32_OTGFS_GRSTCTL);
+  stm32_putreg(STM32_OTGFS_GRSTCTL, OTGFS_GRSTCTL_RXFFLSH);
 
   /* Wait for the FLUSH to complete */
 
diff --git a/arch/arm/src/stm32/stm32_otghshost.c b/arch/arm/src/stm32/stm32_otghshost.c
index 78e9909ecaf..811cadd885a 100644
--- a/arch/arm/src/stm32/stm32_otghshost.c
+++ b/arch/arm/src/stm32/stm32_otghshost.c
@@ -4839,7 +4839,7 @@ static void stm32_flush_txfifos(uint32_t txfnum)
   /* Initiate the TX FIFO flush operation */
 
   regval = OTGHS_GRSTCTL_TXFFLSH | txfnum;
-  stm32_putreg(regval, STM32_OTGHS_GRSTCTL);
+  stm32_putreg(STM32_OTGHS_GRSTCTL, regval);
 
   /* Wait for the FLUSH to complete */
 
@@ -4878,7 +4878,7 @@ static void stm32_flush_rxfifo(void)
 
   /* Initiate the RX FIFO flush operation */
 
-  stm32_putreg(OTGHS_GRSTCTL_RXFFLSH, STM32_OTGHS_GRSTCTL);
+  stm32_putreg(STM32_OTGHS_GRSTCTL, OTGHS_GRSTCTL_RXFFLSH);
 
   /* Wait for the FLUSH to complete */