dts/arm/st: Add serial nodes on stm32wb

Add USART1 and LPUART1 nodes on stm32wb series.
Only these 2 ones are available for now on this series.

Signed-off-by: Erwan Gouriou <[email protected]>

Author: erwango

dts/arm/st/wb/stm32wb.dtsi

@@ -109,6 +109,24 @@
 				label = "GPIOH";
 			};
 		};
+
+		usart1: serial@40013800 {
+			compatible = "st,stm32-usart", "st,stm32-uart";
+			reg = <0x40013800 0x400>;
+			clocks = <&rcc STM32_CLOCK_BUS_APB2 0x00004000>;
+			interrupts = <36 0>;
+			status = "disabled";
+			label = "UART_1";
+		};
+
+		lpuart1: serial@40008000 {
+			compatible = "st,stm32-lpuart", "st,stm32-uart";
+			reg = <0x40008000 0x400>;
+			clocks = <&rcc STM32_CLOCK_BUS_APB1_2 0x00000001>;
+			interrupts = <37 0>;
+			status = "disabled";
+			label = "LPUART_1";
+		};
 	};
 };
 

soc/arm/st_stm32/stm32wb/dts_fixup.h

@@ -62,4 +62,22 @@
 #define DT_GPIO_STM32_GPIOH_CLOCK_BITS		DT_ST_STM32_GPIO_48001C00_CLOCK_BITS
 #define DT_GPIO_STM32_GPIOH_CLOCK_BUS		DT_ST_STM32_GPIO_48001C00_CLOCK_BUS
 
+#define DT_UART_STM32_USART_1_BASE_ADDRESS	DT_ST_STM32_USART_40013800_BASE_ADDRESS
+#define DT_UART_STM32_USART_1_BAUD_RATE		DT_ST_STM32_USART_40013800_CURRENT_SPEED
+#define DT_UART_STM32_USART_1_IRQ_PRI		DT_ST_STM32_USART_40013800_IRQ_0_PRIORITY
+#define DT_UART_STM32_USART_1_NAME		DT_ST_STM32_USART_40013800_LABEL
+#define DT_USART_1_IRQ				DT_ST_STM32_USART_40013800_IRQ_0
+#define DT_UART_STM32_USART_1_CLOCK_BITS	DT_ST_STM32_USART_40013800_CLOCK_BITS
+#define DT_UART_STM32_USART_1_CLOCK_BUS		DT_ST_STM32_USART_40013800_CLOCK_BUS
+#define DT_UART_STM32_USART_1_HW_FLOW_CONTROL	DT_ST_STM32_USART_40013800_HW_FLOW_CONTROL
+
+#define DT_UART_STM32_LPUART_1_BASE_ADDRESS	DT_ST_STM32_LPUART_40008000_BASE_ADDRESS
+#define DT_UART_STM32_LPUART_1_BAUD_RATE	DT_ST_STM32_LPUART_40008000_CURRENT_SPEED
+#define DT_UART_STM32_LPUART_1_IRQ_PRI		DT_ST_STM32_LPUART_40008000_IRQ_0_PRIORITY
+#define DT_UART_STM32_LPUART_1_NAME		DT_ST_STM32_LPUART_40008000_LABEL
+#define DT_LPUART_1_IRQ				DT_ST_STM32_LPUART_40008000_IRQ_0
+#define DT_UART_STM32_LPUART_1_CLOCK_BITS	DT_ST_STM32_LPUART_40008000_CLOCK_BITS
+#define DT_UART_STM32_LPUART_1_CLOCK_BUS	DT_ST_STM32_LPUART_40008000_CLOCK_BUS
+#define DT_UART_STM32_LPUART_1_HW_FLOW_CONTROL	DT_ST_STM32_LPUART_40008000_HW_FLOW_CONTROL
+
 /* End of SoC Level DTS fixup file */

soc/arm/st_stm32/stm32wb/soc.h

@@ -31,6 +31,11 @@
 #include <stm32wbxx_ll_gpio.h>
 #endif
 
+#ifdef CONFIG_SERIAL_HAS_DRIVER
+#include <stm32wbxx_ll_usart.h>
+#include <stm32wbxx_ll_lpuart.h>
+#endif
+
 #ifdef CONFIG_CLOCK_CONTROL_STM32_CUBE
 #include <stm32wbxx_ll_utils.h>
 #include <stm32wbxx_ll_bus.h>