diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index a47eaecbde42..d84686e00370 100644
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -1718,6 +1718,14 @@ pins2 {
 		};
 	};
 
+	uart8_rtscts_pins_a: uart8rtscts-0 {
+		pins {
+			pinmux = <STM32_PINMUX('G', 7, AF8)>, /* UART8_RTS */
+				 <STM32_PINMUX('G', 10, AF8)>; /* UART8_CTS */
+			bias-disable;
+		};
+	};
+
 	spi4_pins_a: spi4-0 {
 		pins {
 			pinmux = <STM32_PINMUX('E', 12, AF5)>, /* SPI4_SCK */