diff --git a/drivers/serial/Kconfig.stm32 b/drivers/serial/Kconfig.stm32
index 24a47d609e0..4a67eb1e93f 100644
--- a/drivers/serial/Kconfig.stm32
+++ b/drivers/serial/Kconfig.stm32
@@ -35,22 +35,6 @@ config UART_STM32_PORT_1_NAME
 	  This is the device name for USART1 port, and is
 	  included in the device struct.
 
-if !HAS_DTS
-config UART_STM32_PORT_1_BAUD_RATE
-	int "STM32 USART1 Baud Rate"
-	default 9600
-	depends on UART_STM32_PORT_1
-	help
-	  The baud rate for USART1 port to be set to at boot.
-
-config UART_STM32_PORT_1_IRQ_PRI
-	int "STM32 USART1 Interrupt Priority"
-	default 0
-	depends on UART_STM32_PORT_1 && UART_INTERRUPT_DRIVEN
-	help
-	  The interrupt priority for USART1 port.
-
-endif # !HAS_DTS
 # --- port 2 ---
 
 config UART_STM32_PORT_2
@@ -69,23 +53,6 @@ config UART_STM32_PORT_2_NAME
 	  This is the device name for USART2 port, and is
 	  included in the device struct.
 
-if !HAS_DTS
-config UART_STM32_PORT_2_BAUD_RATE
-	int "STM32 USART2 Baud Rate"
-	default 9600
-	depends on UART_STM32_PORT_2
-	help
-	  The baud rate for USART2 port to be set to at boot.
-
-config UART_STM32_PORT_2_IRQ_PRI
-	int "STM32 USART2 Interrupt Priority"
-	default 0
-	depends on UART_STM32_PORT_2 && UART_INTERRUPT_DRIVEN
-	help
-	  The interrupt priority for USART2 port.
-
-endif # !HAS_DTS
-
 # --- port 3 ---
 
 config UART_STM32_PORT_3
@@ -104,21 +71,4 @@ config UART_STM32_PORT_3_NAME
 	  This is the device name for USART3 port, and is
 	  included in the device struct.
 
-if !HAS_DTS
-config UART_STM32_PORT_3_BAUD_RATE
-	int "STM32 USART3 Baud Rate"
-	default 9600
-	depends on UART_STM32_PORT_3
-	help
-	  The baud rate for USART3 port to be set to at boot.
-
-config UART_STM32_PORT_3_IRQ_PRI
-	int "STM32 USART3 Interrupt Priority"
-	default 0
-	depends on UART_STM32_PORT_3 && UART_INTERRUPT_DRIVEN
-	help
-	  The interrupt priority for USART3 port.
-
-endif # !HAS_DTS
-
 endif # UART_STM32
diff --git a/drivers/serial/uart_stm32.c b/drivers/serial/uart_stm32.c
index f036180411c..e0bbb80ecd7 100644
--- a/drivers/serial/uart_stm32.c
+++ b/drivers/serial/uart_stm32.c
@@ -36,12 +36,6 @@
 #define UART_STRUCT(dev)					\
 	((USART_TypeDef *)(DEV_CFG(dev))->uconf.base)
 
-#ifndef CONFIG_HAS_DTS
-#define CONFIG_UART_STM32_PORT_1_BASE_ADDRESS	USART1_BASE
-#define CONFIG_UART_STM32_PORT_2_BASE_ADDRESS	USART2_BASE
-#define CONFIG_UART_STM32_PORT_3_BASE_ADDRESS	USART3_BASE
-#endif
-
 #define TIMEOUT 1000
 
 static int uart_stm32_poll_in(struct device *dev, unsigned char *c)
@@ -366,18 +360,6 @@ DEVICE_AND_API_INIT(uart_stm32_1, CONFIG_UART_STM32_PORT_1_NAME,
 #ifdef CONFIG_UART_INTERRUPT_DRIVEN
 static void uart_stm32_irq_config_func_1(struct device *dev)
 {
-
-#ifndef CONFIG_HAS_DTS
-#ifdef CONFIG_SOC_SERIES_STM32F1X
-#define PORT_1_IRQ STM32F1_IRQ_USART1
-#elif CONFIG_SOC_SERIES_STM32F3X
-#define PORT_1_IRQ STM32F3_IRQ_USART1
-#elif CONFIG_SOC_SERIES_STM32F4X
-#define PORT_1_IRQ STM32F4_IRQ_USART1
-#elif CONFIG_SOC_SERIES_STM32L4X
-#define PORT_1_IRQ STM32L4_IRQ_USART1
-#endif
-#endif
 	IRQ_CONNECT(PORT_1_IRQ,
 		CONFIG_UART_STM32_PORT_1_IRQ_PRI,
 		uart_stm32_isr, DEVICE_GET(uart_stm32_1),
@@ -430,18 +412,6 @@ DEVICE_AND_API_INIT(uart_stm32_2, CONFIG_UART_STM32_PORT_2_NAME,
 #ifdef CONFIG_UART_INTERRUPT_DRIVEN
 static void uart_stm32_irq_config_func_2(struct device *dev)
 {
-
-#ifndef CONFIG_HAS_DTS
-#ifdef CONFIG_SOC_SERIES_STM32F1X
-#define PORT_2_IRQ STM32F1_IRQ_USART2
-#elif CONFIG_SOC_SERIES_STM32F3X
-#define PORT_2_IRQ STM32F3_IRQ_USART2
-#elif CONFIG_SOC_SERIES_STM32F4X
-#define PORT_2_IRQ STM32F4_IRQ_USART2
-#elif CONFIG_SOC_SERIES_STM32L4X
-#define PORT_2_IRQ STM32L4_IRQ_USART2
-#endif
-#endif
 	IRQ_CONNECT(PORT_2_IRQ,
 		CONFIG_UART_STM32_PORT_2_IRQ_PRI,
 		uart_stm32_isr, DEVICE_GET(uart_stm32_2),
@@ -493,17 +463,6 @@ DEVICE_AND_API_INIT(uart_stm32_3, CONFIG_UART_STM32_PORT_3_NAME,
 #ifdef CONFIG_UART_INTERRUPT_DRIVEN
 static void uart_stm32_irq_config_func_3(struct device *dev)
 {
-#ifndef CONFIG_HAS_DTS
-#ifdef CONFIG_SOC_SERIES_STM32F1X
-#define PORT_3_IRQ STM32F1_IRQ_USART3
-#elif CONFIG_SOC_SERIES_STM32F3X
-#define PORT_3_IRQ STM32F3_IRQ_USART3
-#elif CONFIG_SOC_SERIES_STM32F4X
-#define PORT_3_IRQ STM32F4_IRQ_USART3
-#elif CONFIG_SOC_SERIES_STM32L4X
-#define PORT_3_IRQ STM32L4_IRQ_USART3
-#endif
-#endif
 	IRQ_CONNECT(PORT_3_IRQ,
 		CONFIG_UART_STM32_PORT_3_IRQ_PRI,
 		uart_stm32_isr, DEVICE_GET(uart_stm32_3),