watchdog: Get rid of ASSEMBLY hacks

Only one occurance of WATCHDOG_RESET is left in one assembler file.
This patch changes this occurance to a direct call to watchdog_reset
and then removes all the ASSEMBLY ifdef'ery in watchdog.h, as it's not
needed any more to clean this mess a bit up.

Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]
diff --git a/arch/powerpc/lib/ticks.S b/arch/powerpc/lib/ticks.S
index c487f93..8647d77 100644
--- a/arch/powerpc/lib/ticks.S
+++ b/arch/powerpc/lib/ticks.S
@@ -9,7 +9,6 @@
 #include <ppc_asm.tmpl>
 #include <ppc_defs.h>
 #include <config.h>
-#include <watchdog.h>
 
 /*
  * unsigned long long get_ticks(void);
@@ -42,7 +41,9 @@
 	addc    r14, r4, r14	/* Compute end time lower */
 	addze	r15, r3		/*     and end time upper */
 
-	WATCHDOG_RESET		/* Trigger watchdog, if needed */
+#if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
+	bl	schedule	/* Trigger watchdog, if needed */
+#endif
 1:	bl	get_ticks	/* Get current time */
 	subfc	r4, r4, r14	/* Subtract current time from end time */
 	subfe.	r3, r3, r15
diff --git a/include/watchdog.h b/include/watchdog.h
index 7a09346..1365b15 100644
--- a/include/watchdog.h
+++ b/include/watchdog.h
@@ -38,54 +38,36 @@
  * Hardware watchdog
  */
 #ifdef CONFIG_HW_WATCHDOG
-	#if defined(__ASSEMBLY__)
-		#define WATCHDOG_RESET bl hw_watchdog_reset
-	#else
-		extern void hw_watchdog_reset(void);
+	extern void hw_watchdog_reset(void);
 
-		#define WATCHDOG_RESET hw_watchdog_reset
-	#endif /* __ASSEMBLY__ */
+	#define WATCHDOG_RESET hw_watchdog_reset
 #else
 	/*
 	 * Maybe a software watchdog?
 	 */
 	#if defined(CONFIG_WATCHDOG)
-		#if defined(__ASSEMBLY__)
-			/* Don't require the watchdog to be enabled in SPL */
-			#if defined(CONFIG_SPL_BUILD) &&		\
-				!defined(CONFIG_SPL_WATCHDOG)
-				#define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/
-			#else
-				#define WATCHDOG_RESET bl watchdog_reset
-			#endif
+		/* Don't require the watchdog to be enabled in SPL */
+		#if defined(CONFIG_SPL_BUILD) &&		\
+			!defined(CONFIG_SPL_WATCHDOG)
+			#define WATCHDOG_RESET() { \
+				cyclic_run(); \
+			}
 		#else
-			/* Don't require the watchdog to be enabled in SPL */
-			#if defined(CONFIG_SPL_BUILD) &&		\
-				!defined(CONFIG_SPL_WATCHDOG)
-				#define WATCHDOG_RESET() { \
-					cyclic_run(); \
-				}
-			#else
-				extern void watchdog_reset(void);
+			extern void watchdog_reset(void);
 
-				#define WATCHDOG_RESET() { \
-					watchdog_reset(); \
-					cyclic_run(); \
-				}
-			#endif
+			#define WATCHDOG_RESET() { \
+				watchdog_reset(); \
+				cyclic_run(); \
+			}
 		#endif
 	#else
 		/*
 		 * No hardware or software watchdog.
 		 */
-		#if defined(__ASSEMBLY__)
-			#define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/
-		#else
-			#define WATCHDOG_RESET() { \
-				cyclic_run(); \
+		#define WATCHDOG_RESET() { \
+			cyclic_run(); \
 			}
-		#endif /* __ASSEMBLY__ */
-	#endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */
+	#endif /* CONFIG_WATCHDOG */
 #endif /* CONFIG_HW_WATCHDOG */
 
 /*