diff --git a/tests/drivers/uart/uart_async_api/boards/nucleo_c092rc.overlay b/tests/drivers/uart/uart_async_api/boards/nucleo_c092rc.overlay
new file mode 100644
index 00000000000..ac4070fe633
--- /dev/null
+++ b/tests/drivers/uart/uart_async_api/boards/nucleo_c092rc.overlay
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+&usart4 {
+	/* available on ST morpho connector CN10 pins 4 and 22 */
+	pinctrl-0 = <&usart4_tx_pc1 &usart4_rx_pc0>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};
+
+
+dut: &usart4 {
+	dmas = <&dmamux1 5 57 STM32_DMA_PERIPH_TX>,
+	       <&dmamux1 6 56 STM32_DMA_PERIPH_RX>;
+	dma-names = "tx", "rx";
+};
+
+&dma1 {
+	status = "okay";
+};
+
+&dmamux1 {
+	status = "okay";
+};