diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
index 1eb99b814f5b..d61a02da898c 100644
--- a/arch/avr32/mach-at32ap/pio.c
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -110,6 +110,10 @@ void __init at32_select_gpio(unsigned int pin, unsigned long flags)
 			pio_writel(pio, SODR, mask);
 		else
 			pio_writel(pio, CODR, mask);
+		if (flags & AT32_GPIOF_MULTIDRV)
+			pio_writel(pio, MDER, mask);
+		else
+			pio_writel(pio, MDDR, mask);
 		pio_writel(pio, PUDR, mask);
 		pio_writel(pio, OER, mask);
 	} else {
diff --git a/include/asm-avr32/arch-at32ap/portmux.h b/include/asm-avr32/arch-at32ap/portmux.h
index 9930871decde..b1abe6b4e4ef 100644
--- a/include/asm-avr32/arch-at32ap/portmux.h
+++ b/include/asm-avr32/arch-at32ap/portmux.h
@@ -19,6 +19,7 @@
 #define AT32_GPIOF_OUTPUT	0x00000002	/* (OUT) Enable output driver */
 #define AT32_GPIOF_HIGH		0x00000004	/* (OUT) Set output high */
 #define AT32_GPIOF_DEGLITCH	0x00000008	/* (IN) Filter glitches */
+#define AT32_GPIOF_MULTIDRV	0x00000010	/* Enable multidriver option */
 
 void at32_select_periph(unsigned int pin, unsigned int periph,
 			unsigned long flags);