boards: nucleo_wb55rg: Configure LPUART

Configure LPUART pin and set it as adruino_serial. Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
zephyrproject-rtos · May 21, 2019 · 56e50cf · 56e50cf
1 parent 9c1ffdd
commit 56e50cf
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diff --git a/boards/arm/nucleo_wb55rg/Kconfig.defconfig b/boards/arm/nucleo_wb55rg/Kconfig.defconfig
@@ -17,6 +17,13 @@ config UART_1
 
 endif # UART_CONSOLE
 
+if SERIAL
+
+config LPUART_1
+	default y
+
+endif # SERIAL
+
 if BT_DEBUG_MONITOR
 
 config UART_1

diff --git a/boards/arm/nucleo_wb55rg/doc/nucleowb55rg.rst b/boards/arm/nucleo_wb55rg/doc/nucleowb55rg.rst
@@ -177,6 +177,7 @@ Default Zephyr Peripheral Mapping:
 ----------------------------------
 
 - UART_1 TX/RX : PB7/PB6
+- LPUART_1 TX/RX : PA3/PA2 (arduino_serial)
 - USER_PB : PC4
 - USER_PB1 : PD0
 - USER_PB2 : PD1

diff --git a/boards/arm/nucleo_wb55rg/nucleo_wb55rg.dts b/boards/arm/nucleo_wb55rg/nucleo_wb55rg.dts
@@ -12,7 +12,7 @@
 	compatible = "st,stm32wb55rg-nucleo", "st,stm32wb55rg";
 
 	chosen {
-		zephyr,console = &usart1;
+		zephyr,console = &lpuart1;
 		zephyr,shell-uart = &usart1;
 		zephyr,sram = &sram0;
 		zephyr,flash = &flash0;
@@ -61,3 +61,8 @@
 	current-speed = <115200>;
 	status = "ok";
 };
+
+arduino_serial: &lpuart1 {
+	current-speed = <115200>;
+	status = "ok";
+};
diff --git a/boards/arm/nucleo_wb55rg/pinmux.c b/boards/arm/nucleo_wb55rg/pinmux.c
@@ -18,6 +18,10 @@ static const struct pin_config pinconf[] = {
 	{STM32_PIN_PB7, STM32WBX_PINMUX_FUNC_PB7_USART1_RX},
 	{STM32_PIN_PB6, STM32WBX_PINMUX_FUNC_PB6_USART1_TX},
 #endif	/* CONFIG_UART_1 */
+#ifdef CONFIG_LPUART_1
+	{STM32_PIN_PA2, STM32WBX_PINMUX_FUNC_PA2_LPUART1_TX},
+	{STM32_PIN_PA3, STM32WBX_PINMUX_FUNC_PA3_LPUART1_RX},
+#endif	/* CONFIG_LPUART_1 */
 };
 
 static int pinmux_stm32_init(struct device *port)