boards: st: Add arduino_serial node label for some Nucleo-H7 boards

HoZHel · kartben · commit 896c1e3d558c · 2025-05-15T19:32:29.000+02:00
Add arduino_serial node label and assign appropriate UART pins.

Signed-off-by: Ali Hozhabri &lt;ali.hozhabri@st.com&gt;
diff --git a/boards/st/nucleo_h743zi/arduino_r3_connector.dtsi b/boards/st/nucleo_h743zi/arduino_r3_connector.dtsi
@@ -38,3 +38,4 @@
 
 arduino_i2c: &i2c1 {};
 arduino_spi: &spi1 {};
+arduino_serial: &lpuart1 {};
diff --git a/boards/st/nucleo_h743zi/nucleo_h743zi.dts b/boards/st/nucleo_h743zi/nucleo_h743zi.dts
@@ -110,6 +110,13 @@
 	d3ppre = <2>;
 };
 
+&lpuart1 {
+	pinctrl-0 = <&lpuart1_tx_pb6 &lpuart1_rx_pb7>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};
+
 &usart3 {
 	pinctrl-0 = <&usart3_tx_pd8 &usart3_rx_pd9>;
 	pinctrl-names = "default";
diff --git a/boards/st/nucleo_h753zi/arduino_r3_connector.dtsi b/boards/st/nucleo_h753zi/arduino_r3_connector.dtsi
@@ -37,3 +37,4 @@
 
 arduino_i2c: &i2c1 {};
 arduino_spi: &spi1 {};
+arduino_serial: &lpuart1 {};
diff --git a/boards/st/nucleo_h753zi/nucleo_h753zi.dts b/boards/st/nucleo_h753zi/nucleo_h753zi.dts
@@ -108,6 +108,13 @@
 	d3ppre = <2>;
 };
 
+&lpuart1 {
+	pinctrl-0 = <&lpuart1_tx_pb6 &lpuart1_rx_pb7>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};
+
 &usart3 {
 	pinctrl-0 = <&usart3_tx_pd8 &usart3_rx_pd9>;
 	pinctrl-names = "default";
diff --git a/boards/st/nucleo_h7a3zi_q/arduino_r3_connector.dtsi b/boards/st/nucleo_h7a3zi_q/arduino_r3_connector.dtsi
@@ -34,3 +34,5 @@
 			   <21 0 &gpiob 8 0>;	/* D15 */
 	};
 };
+
+arduino_serial: &lpuart1 {};
diff --git a/boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q.dts b/boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q.dts
@@ -91,6 +91,13 @@
 	d3ppre = <2>;
 };
 
+&lpuart1 {
+	pinctrl-0 = <&lpuart1_tx_pb6 &lpuart1_rx_pb7>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};
+
 &usart3 {
 	pinctrl-0 = <&usart3_tx_pd8 &usart3_rx_pd9>;
 	pinctrl-names = "default";

Original file line number	Diff line number	Diff line change
`@@ -38,3 +38,4 @@`
`38`	`38`
`39`	`39`	`arduino_i2c: &i2c1 {};`
`40`	`40`	`arduino_spi: &spi1 {};`
	`41`	`+arduino_serial: &lpuart1 {};`
Original file line number	Diff line number	Diff line change
`@@ -37,3 +37,4 @@`
`37`	`37`
`38`	`38`	`arduino_i2c: &i2c1 {};`
`39`	`39`	`arduino_spi: &spi1 {};`
	`40`	`+arduino_serial: &lpuart1 {};`