ppc: trigger WDT before starting Linux

Signed-off-by: NHeiko Schocher <hs@denx.de>

lib_ppc/bootm.c

@@ -94,6 +94,7 @@ static void boot_jump_linux(bootm_headers_t *images)
 #endif
 
 		debug ("   Booting using OF flat tree...\n");
+		WATCHDOG_RESET ();
 		(*kernel) ((bd_t *)of_flat_tree, 0, 0, EPAPR_MAGIC,
 			   CONFIG_SYS_BOOTMAPSZ, 0, 0);
 		/* does not return */
@@ -117,6 +118,7 @@ static void boot_jump_linux(bootm_headers_t *images)
 		bd_t *kbd = images->kbd;
 
 		debug ("   Booting using board info...\n");
+		WATCHDOG_RESET ();
 		(*kernel) (kbd, initrd_start, initrd_end,
 			   cmd_start, cmd_end, 0, 0);
 		/* does not return */