diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index d84686e00370..9dbefa77b03e 100644
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -349,6 +349,61 @@
 		};
 	};
 
+	fmc_pins_b: fmc-1 {
+		pins {
+			pinmux = <STM32_PINMUX('D', 4, AF12)>, /* FMC_NOE */
+				 <STM32_PINMUX('D', 5, AF12)>, /* FMC_NWE */
+				 <STM32_PINMUX('B', 7, AF12)>, /* FMC_NL */
+				 <STM32_PINMUX('D', 14, AF12)>, /* FMC_D0 */
+				 <STM32_PINMUX('D', 15, AF12)>, /* FMC_D1 */
+				 <STM32_PINMUX('D', 0, AF12)>, /* FMC_D2 */
+				 <STM32_PINMUX('D', 1, AF12)>, /* FMC_D3 */
+				 <STM32_PINMUX('E', 7, AF12)>, /* FMC_D4 */
+				 <STM32_PINMUX('E', 8, AF12)>, /* FMC_D5 */
+				 <STM32_PINMUX('E', 9, AF12)>, /* FMC_D6 */
+				 <STM32_PINMUX('E', 10, AF12)>, /* FMC_D7 */
+				 <STM32_PINMUX('E', 11, AF12)>, /* FMC_D8 */
+				 <STM32_PINMUX('E', 12, AF12)>, /* FMC_D9 */
+				 <STM32_PINMUX('E', 13, AF12)>, /* FMC_D10 */
+				 <STM32_PINMUX('E', 14, AF12)>, /* FMC_D11 */
+				 <STM32_PINMUX('E', 15, AF12)>, /* FMC_D12 */
+				 <STM32_PINMUX('D', 8, AF12)>, /* FMC_D13 */
+				 <STM32_PINMUX('D', 9, AF12)>, /* FMC_D14 */
+				 <STM32_PINMUX('D', 10, AF12)>, /* FMC_D15 */
+				 <STM32_PINMUX('G', 9, AF12)>, /* FMC_NE2_FMC_NCE */
+				 <STM32_PINMUX('G', 12, AF12)>; /* FMC_NE4 */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <3>;
+		};
+	};
+
+	fmc_sleep_pins_b: fmc-sleep-1 {
+		pins {
+			pinmux = <STM32_PINMUX('D', 4, ANALOG)>, /* FMC_NOE */
+				 <STM32_PINMUX('D', 5, ANALOG)>, /* FMC_NWE */
+				 <STM32_PINMUX('B', 7, ANALOG)>, /* FMC_NL */
+				 <STM32_PINMUX('D', 14, ANALOG)>, /* FMC_D0 */
+				 <STM32_PINMUX('D', 15, ANALOG)>, /* FMC_D1 */
+				 <STM32_PINMUX('D', 0, ANALOG)>, /* FMC_D2 */
+				 <STM32_PINMUX('D', 1, ANALOG)>, /* FMC_D3 */
+				 <STM32_PINMUX('E', 7, ANALOG)>, /* FMC_D4 */
+				 <STM32_PINMUX('E', 8, ANALOG)>, /* FMC_D5 */
+				 <STM32_PINMUX('E', 9, ANALOG)>, /* FMC_D6 */
+				 <STM32_PINMUX('E', 10, ANALOG)>, /* FMC_D7 */
+				 <STM32_PINMUX('E', 11, ANALOG)>, /* FMC_D8 */
+				 <STM32_PINMUX('E', 12, ANALOG)>, /* FMC_D9 */
+				 <STM32_PINMUX('E', 13, ANALOG)>, /* FMC_D10 */
+				 <STM32_PINMUX('E', 14, ANALOG)>, /* FMC_D11 */
+				 <STM32_PINMUX('E', 15, ANALOG)>, /* FMC_D12 */
+				 <STM32_PINMUX('D', 8, ANALOG)>, /* FMC_D13 */
+				 <STM32_PINMUX('D', 9, ANALOG)>, /* FMC_D14 */
+				 <STM32_PINMUX('D', 10, ANALOG)>, /* FMC_D15 */
+				 <STM32_PINMUX('G', 9, ANALOG)>, /* FMC_NE2_FMC_NCE */
+				 <STM32_PINMUX('G', 12, ANALOG)>; /* FMC_NE4 */
+		};
+	};
+
 	i2c1_pins_a: i2c1-0 {
 		pins {
 			pinmux = <STM32_PINMUX('D', 12, AF5)>, /* I2C1_SCL */