diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 8e17284a803f..ad8a7d94afcd 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -821,6 +821,9 @@ static void __init omap_4430sdp_display_init(void)
 #ifdef CONFIG_OMAP_MUX
 static struct omap_board_mux board_mux[] __initdata = {
 	OMAP4_MUX(USBB2_ULPITLL_CLK, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
+	/* NIRQ2 for twl6040 */
+	OMAP4_MUX(SYS_NIRQ2, OMAP_MUX_MODE0 |
+		  OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
 	{ .reg_offset = OMAP_MUX_TERMINATOR },
 };