am335x: Enable CONFIG_OMAP_WATCHDOG support

There is a board-specific portion for calling watchdog enable itself, in
main U-Boot.

Signed-off-by: Tom Rini <trini@ti.com>

arch/arm/cpu/armv7/omap-common/boot-common.c

@@ -14,6 +14,7 @@
 #include <asm/arch/omap.h>
 #include <asm/arch/mmc_host_def.h>
 #include <asm/arch/sys_proto.h>
+#include <watchdog.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -76,6 +77,9 @@ void spl_board_init(void)
 #if defined(CONFIG_AM33XX) && defined(CONFIG_SPL_MUSB_NEW_SUPPORT)
 	arch_misc_init();
 #endif
+#if defined(CONFIG_HW_WATCHDOG)
+	hw_watchdog_init();
+#endif
 #ifdef CONFIG_AM33XX
 	am33xx_spl_board_init();
 #endif

board/ti/am335x/board.c

@@ -28,6 +28,8 @@
 #include <cpsw.h>
 #include <power/tps65217.h>
 #include <power/tps65910.h>
+#include <environment.h>
+#include <watchdog.h>
 #include "board.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -485,6 +487,10 @@ int board_init(void)
 		STNOR_GPMC_CONFIG5, STNOR_GPMC_CONFIG6, STNOR_GPMC_CONFIG7 };
 #endif
 
+#if defined(CONFIG_HW_WATCHDOG)
+	hw_watchdog_init();
+#endif
+
 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 
 	gpmc_init();

include/configs/ti_am335x_common.h

@@ -47,6 +47,10 @@
 #define CONFIG_BOOTCOUNT_LIMIT
 #define CONFIG_SYS_BOOTCOUNT_ADDR	0x44E3E000
 
+/* Enable the HW watchdog, since we can use this with bootcount */
+#define CONFIG_HW_WATCHDOG
+#define CONFIG_OMAP_WATCHDOG
+
 /*
  * SPL related defines.  The Public RAM memory map the ROM defines the
  * area between 0x402F0400 and 0x4030B800 as a download area and
@@ -57,6 +61,9 @@
 #define CONFIG_SPL_TEXT_BASE		0x402F0400
 #define CONFIG_SPL_MAX_SIZE		(0x4030B800 - CONFIG_SPL_TEXT_BASE)
 
+/* Enable the watchdog inside of SPL */
+#define CONFIG_SPL_WATCHDOG_SUPPORT
+
 /*
  * Since SPL did pll and ddr initialization for us,
  * we don't need to do it twice.