MX31: mx31pdk: Add watchdog support

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

board/freescale/mx31pdk/mx31pdk.c

@@ -28,9 +28,17 @@
 #include <netdev.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/imx-regs.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 */
@@ -68,6 +76,14 @@ int board_init(void)
 	return 0;
 }
 
+int board_late_init(void)
+{
+#ifdef CONFIG_HW_WATCHDOG
+	mxc_hw_watchdog_enable();
+#endif
+	return 0;
+}
+
 int checkboard(void)
 {
 	printf("Board: MX31PDK\n");

include/configs/mx31pdk.h

@@ -61,6 +61,7 @@
 
 #define CONFIG_MXC_UART		1
 #define CONFIG_SYS_MX31_UART1	1
+#define CONFIG_HW_WATCHDOG
 
 #define CONFIG_HARD_SPI		1
 #define CONFIG_MXC_SPI		1
@@ -98,6 +99,8 @@
  */
 #undef CONFIG_CMD_IMLS
 
+#define BOARD_LATE_INIT
+
 #define CONFIG_BOOTDELAY	3
 
 #define	CONFIG_EXTRA_ENV_SETTINGS					\