MX31: qong: add watchdog

Signed-off-by: Stefano Babic <sbabic@denx.de>
diff --git a/board/davedenx/qong/qong.c b/board/davedenx/qong/qong.c
index 8a81cfc..3ace6cd 100644
--- a/board/davedenx/qong/qong.c
+++ b/board/davedenx/qong/qong.c
@@ -30,9 +30,17 @@
 #include <fsl_pmic.h>
 #include <mxc_gpio.h>
 #include "qong_fpga.h"
+#include <watchdog.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#ifdef CONFIG_HW_WATCHDOG
+void hw_watchdog_reset(void)
+{
+	mxc_hw_watchdog_reset();
+}
+#endif
+
 int dram_init (void)
 {
 	/* dram_init must store complete ramsize in gd->ram_size */
@@ -202,6 +210,10 @@
 	pmic_reg_write(REG_POWER_CTL0, val | COINCHEN);
 	pmic_reg_write(REG_INT_STATUS1, RTCRSTI);
 
+#ifdef CONFIG_HW_WATCHDOG
+	mxc_hw_watchdog_enable();
+#endif
+
 	return 0;
 }