ARM: mx3/mx31_3ds: Add watchdog support

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-mx3/Kconfig

@@ -93,6 +93,7 @@ config MACH_MX31_3DS
 	select SOC_IMX31
 	select MXC_DEBUG_BOARD
 	select IMX_HAVE_PLATFORM_FSL_USB2_UDC
+	select IMX_HAVE_PLATFORM_IMX2_WDT
 	select IMX_HAVE_PLATFORM_IMX_KEYPAD
 	select IMX_HAVE_PLATFORM_IMX_UART
 	select IMX_HAVE_PLATFORM_MXC_NAND

arch/arm/mach-mx3/mach-mx31_3ds.c

@@ -252,6 +252,7 @@ static void __init mxc_board_init(void)
 	if (mxc_expio_init(MX31_CS5_BASE_ADDR, EXPIO_PARENT_INT))
 		printk(KERN_WARNING "Init of the debug board failed, all "
 				    "devices on the debug board are unusable.\n");
+	imx31_add_imx2_wdt(NULL);
 }
 
 static void __init mx31_3ds_timer_init(void)