diff --git a/arch/arm/src/stm32/Kconfig b/arch/arm/src/stm32/Kconfig
index b02203c7bd..e4c26d8801 100644
--- a/arch/arm/src/stm32/Kconfig
+++ b/arch/arm/src/stm32/Kconfig
@@ -8020,6 +8020,14 @@ config USART1_RXDMA
 	---help---
 		In high data rate usage, Rx DMA may eliminate Rx overrun errors
 
+config USART1_TXDMA
+	bool "USART1 Tx DMA"
+	default n
+	depends on (((STM32_STM32F10XX || STM32_STM32L15XX) && STM32_DMA1) || (!STM32_STM32F10XX && STM32_DMA2))
+	select STM32_USART_TXDMA
+	---help---
+		In high data rate usage, Tx DMA may reduce CPU load
+
 endif # STM32_USART1_SERIALDRIVER
 
 if STM32_USART1_HCIUART
@@ -8107,6 +8115,14 @@ config USART2_RXDMA
 	---help---
 		In high data rate usage, Rx DMA may eliminate Rx overrun errors
 
+config USART2_TXDMA
+	bool "USART. Tx DMA"
+	default n
+	depends on STM32_DMA1
+	select STM32_USART_TXDMA
+	---help---
+		In high data rate usage, Tx DMA may reduce CPU load
+
 endif # STM32_USART2_SERIALDRIVER
 
 if STM32_USART2_HCIUART
@@ -8194,6 +8210,14 @@ config USART3_RXDMA
 	---help---
 		In high data rate usage, Rx DMA may eliminate Rx overrun errors
 
+config USART3_TXDMA
+	bool "USART. Tx DMA"
+	default n
+	depends on STM32_DMA1
+	select STM32_USART_TXDMA
+	---help---
+		In high data rate usage, Tx DMA may reduce CPU load
+
 endif # STM32_USART3_SERIALDRIVER
 
 if STM32_USART3_HCIUART
@@ -8276,6 +8300,14 @@ config UART4_RXDMA
 	---help---
 		In high data rate usage, Rx DMA may eliminate Rx overrun errors
 
+config UART4_TXDMA
+	bool "UART. Tx DMA"
+	default n
+	depends on STM32_DMA1
+	select STM32_USART_TXDMA
+	---help---
+		In high data rate usage, Tx DMA may reduce CPU load
+
 endif # STM32_UART4_SERIALDRIVER
 
 choice
@@ -8322,6 +8354,14 @@ config UART5_RXDMA
 	---help---
 		In high data rate usage, Rx DMA may eliminate Rx overrun errors
 
+config UART5_TXDMA
+	bool "UART. Tx DMA"
+	default n
+	depends on STM32_DMA1
+	select STM32_USART_TXDMA
+	---help---
+		In high data rate usage, Tx DMA may reduce CPU load
+
 endif # STM32_UART5_SERIALDRIVER
 
 choice
@@ -8373,6 +8413,14 @@ config USART6_RXDMA
 	---help---
 		In high data rate usage, Rx DMA may eliminate Rx overrun errors
 
+config USART6_TXDMA
+	bool "USART6 Tx DMA"
+	default n
+	depends on STM32_DMA2
+	select STM32_USART_TXDMA
+	---help---
+		In high data rate usage, Tx DMA may reduce CPU load
+
 endif # STM32_USART6_SERIALDRIVER
 
 if STM32_USART6_HCIUART
@@ -8455,11 +8503,19 @@ config UART7_RS485_DIR_POLARITY
 config UART7_RXDMA
 	bool "UART7 Rx DMA"
 	default n
-	depends on STM32_DMA2
+	depends on STM32_DMA1
 	select STM32_USART_RXDMA
 	---help---
 		In high data rate usage, Rx DMA may eliminate Rx overrun errors
 
+config UART7_TXDMA
+	bool "UART. Tx DMA"
+	default n
+	depends on STM32_DMA1
+	select STM32_USART_TXDMA
+	---help---
+		In high data rate usage, Tx DMA may reduce CPU load
+
 endif # STM32_UART7_SERIALDRIVER
 
 if STM32_UART7_HCIUART
@@ -8542,11 +8598,19 @@ config UART8_RS485_DIR_POLARITY
 config UART8_RXDMA
 	bool "UART8 Rx DMA"
 	default n
-	depends on STM32_DMA2
+	depends on STM32_DMA1
 	select STM32_USART_RXDMA
 	---help---
 		In high data rate usage, Rx DMA may eliminate Rx overrun errors
 
+config UART8_TXDMA
+	bool "UART. Tx DMA"
+	default n
+	depends on STM32_DMA1
+	select STM32_USART_TXDMA
+	---help---
+		In high data rate usage, Tx DMA may reduce CPU load
+
 endif # STM32_UART8_SERIALDRIVER
 
 if STM32_UART8_HCIUART
diff --git a/arch/arm/src/stm32/stm32_serial.c b/arch/arm/src/stm32/stm32_serial.c
index 038598ca64..603f785997 100644
--- a/arch/arm/src/stm32/stm32_serial.c
+++ b/arch/arm/src/stm32/stm32_serial.c
@@ -79,7 +79,7 @@
  * have also been selected.
  */
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 
 #  if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F4XXX)
 /* Verify that DMA has been enabled and the DMA channel has been defined.
@@ -324,13 +324,13 @@ struct up_dev_s
   const uint32_t    cts_gpio;  /* U[S]ART CTS GPIO pin configuration */
 #endif
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
   const unsigned int rxdma_channel; /* DMA channel assigned */
 #endif
 
   /* RX DMA state */
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
   DMA_HANDLE        rxdma;     /* currently-open receive DMA stream */
   bool              rxenable;  /* DMA-based reception en/disable */
   uint32_t          rxdmanext; /* Next byte in the DMA buffer to be read */
@@ -367,7 +367,7 @@ static void up_send(struct uart_dev_s *dev, int ch);
 static void up_txint(struct uart_dev_s *dev, bool enable);
 static bool up_txready(struct uart_dev_s *dev);
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 static int  up_dma_setup(struct uart_dev_s *dev);
 static void up_dma_shutdown(struct uart_dev_s *dev);
 static int  up_dma_receive(struct uart_dev_s *dev, unsigned int *status);
@@ -409,7 +409,7 @@ static const struct uart_ops_s g_uart_ops =
 };
 #endif
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 static const struct uart_ops_s g_uart_dma_ops =
 {
   .setup          = up_dma_setup,
@@ -1149,7 +1149,7 @@ static void up_disableusartint(struct up_dev_s *priv, uint16_t *ie)
  *
  ****************************************************************************/
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 static int up_dma_nextrx(struct up_dev_s *priv)
 {
   size_t dmaresidual;
@@ -1576,7 +1576,7 @@ static int up_setup(struct uart_dev_s *dev)
  *
  ****************************************************************************/
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 static int up_dma_setup(struct uart_dev_s *dev)
 {
   struct up_dev_s *priv = (struct up_dev_s *)dev->priv;
@@ -1703,7 +1703,7 @@ static void up_shutdown(struct uart_dev_s *dev)
  *
  ****************************************************************************/
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 static void up_dma_shutdown(struct uart_dev_s *dev)
 {
   struct up_dev_s *priv = (struct up_dev_s *)dev->priv;
@@ -2371,7 +2371,7 @@ static bool up_rxflowcontrol(struct uart_dev_s *dev,
  *
  ****************************************************************************/
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 static int up_dma_receive(struct uart_dev_s *dev, unsigned int *status)
 {
   struct up_dev_s *priv = (struct up_dev_s *)dev->priv;
@@ -2400,7 +2400,7 @@ static int up_dma_receive(struct uart_dev_s *dev, unsigned int *status)
  *
  ****************************************************************************/
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 static void up_dma_rxint(struct uart_dev_s *dev, bool enable)
 {
   struct up_dev_s *priv = (struct up_dev_s *)dev->priv;
@@ -2425,7 +2425,7 @@ static void up_dma_rxint(struct uart_dev_s *dev, bool enable)
  *
  ****************************************************************************/
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 static bool up_dma_rxavailable(struct uart_dev_s *dev)
 {
   struct up_dev_s *priv = (struct up_dev_s *)dev->priv;
@@ -2546,7 +2546,7 @@ static bool up_txready(struct uart_dev_s *dev)
  *
  ****************************************************************************/
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 static void up_dma_rxcallback(DMA_HANDLE handle, uint8_t status, void *arg)
 {
   struct up_dev_s *priv = (struct up_dev_s *)arg;
@@ -2824,7 +2824,7 @@ void up_serialinit(void)
  *
  ****************************************************************************/
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 void stm32_serial_dma_poll(void)
 {
     irqstate_t flags;
diff --git a/arch/arm/src/stm32/stm32_uart.h b/arch/arm/src/stm32/stm32_uart.h
index df47938493..99e950c9a1 100644
--- a/arch/arm/src/stm32/stm32_uart.h
+++ b/arch/arm/src/stm32/stm32_uart.h
@@ -325,12 +325,12 @@
 
 /* Is DMA available on any (enabled) USART? */
 
-#undef SERIAL_HAVE_DMA
+#undef SERIAL_HAVE_RXDMA
 #if defined(CONFIG_USART1_RXDMA) || defined(CONFIG_USART2_RXDMA) || \
     defined(CONFIG_USART3_RXDMA) || defined(CONFIG_UART4_RXDMA)  || \
     defined(CONFIG_UART5_RXDMA)  || defined(CONFIG_USART6_RXDMA) || \
     defined(CONFIG_UART7_RXDMA)  || defined(CONFIG_UART8_RXDMA)
-#  define SERIAL_HAVE_DMA 1
+#  define SERIAL_HAVE_RXDMA 1
 #endif
 
 /* Is DMA used on the console UART? */
@@ -436,7 +436,7 @@ FAR uart_dev_t *stm32_serial_get_uart(int uart_num);
  *
  ************************************************************************************/
 
-#ifdef SERIAL_HAVE_DMA
+#ifdef SERIAL_HAVE_RXDMA
 void stm32_serial_dma_poll(void);
 #endif