ppc: Move wdt_last to arch_global_data

Move this field into arch_global_data and tidy up.

Signed-off-by: Simon Glass <sjg@chromium.org>

arch/powerpc/include/asm/global_data.h

@@ -125,6 +125,9 @@ struct arch_global_data {
 #ifdef CONFIG_SYS_FPGA_COUNT
 	unsigned fpga_state[CONFIG_SYS_FPGA_COUNT];
 #endif
+#if defined(CONFIG_WD_MAX_RATE)
+	unsigned long long wdt_last;	/* trace watch-dog triggering rate */
+#endif
 };
 
 /*
@@ -172,9 +175,6 @@ typedef	struct	global_data {
 #endif
 #if defined(CONFIG_LWMON) || defined(CONFIG_LWMON5)
 	unsigned long kbd_status;
-#endif
-#if defined(CONFIG_WD_MAX_RATE)
-	unsigned long long wdt_last;	/* trace watch-dog triggering rate */
 #endif
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */

board/lwmon5/lwmon5.c

@@ -357,16 +357,16 @@ void hw_watchdog_reset(void)
 	 * Don't allow watch-dog triggering more frequently than
 	 * the predefined value CONFIG_WD_MAX_RATE [ticks].
 	 */
-	if (ct >= gd->wdt_last) {
-		if ((ct - gd->wdt_last) < CONFIG_WD_MAX_RATE)
+	if (ct >= gd->arch.wdt_last) {
+		if ((ct - gd->arch.wdt_last) < CONFIG_WD_MAX_RATE)
 			return;
 	} else {
 		/* Time base counter had been reset */
-		if (((unsigned long long)(-1) - gd->wdt_last + ct) <
+		if (((unsigned long long)(-1) - gd->arch.wdt_last + ct) <
 		    CONFIG_WD_MAX_RATE)
 			return;
 	}
-	gd->wdt_last = get_ticks();
+	gd->arch.wdt_last = get_ticks();
 #endif
 
 	/*