boards: st: stm32u3: enable spi for stm32u3 boards

kbidani · kartben · commit df7d9ba90d4a · 2025-06-24T14:22:58.000+02:00
Enable SPI for Nucleo U385RG_Q board.

Signed-off-by: Khaoula Bidani &lt;khaoula.bidani-ext@st.com&gt;
diff --git a/boards/st/nucleo_u385rg_q/arduino_r3_connector.dtsi b/boards/st/nucleo_u385rg_q/arduino_r3_connector.dtsi
@@ -36,4 +36,5 @@
 };
 
 arduino_i2c: &i2c1 {};
+arduino_spi: &spi3 {};
 arduino_serial: &lpuart1 {};
diff --git a/boards/st/nucleo_u385rg_q/doc/index.rst b/boards/st/nucleo_u385rg_q/doc/index.rst
@@ -190,6 +190,7 @@ Default Zephyr Peripheral Mapping:
 - LD4 : PA5
 - LPUART_1_TX : PA2
 - LPUART_1_RX : PA3
+- SPI3 NSS/SCK/MISO/MOSI : PA15/PB3/PB4/PB5 (Arduino SPI)
 - UART_1_TX : PA9
 - UART_1_RX : PA10
 - UART_3_TX : PC10
diff --git a/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.dts b/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.dts
@@ -127,3 +127,10 @@
 &rng {
 	status = "okay";
 };
+
+&spi3 {
+	pinctrl-0 = <&spi3_nss_pa15 &spi3_sck_pb3
+		     &spi3_miso_pb4 &spi3_mosi_pb5>;
+	pinctrl-names = "default";
+	status = "okay";
+};
diff --git a/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.yaml b/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.yaml
@@ -8,10 +8,12 @@ supported:
   - arduino_gpio
   - dac
   - adc
+  - arduino_spi
   - dma
   - arduino_i2c
   - gpio
   - i2c
+  - spi
   - usart
 ram: 256
 flash: 1024
