Move bootstage timer out of lib/time.c

The standalone example does not have get_timer() defined, so we cannot
rely on it being available.

Move the timer function into boootstage.c to avoid this problem.

This corrects a build breakage for the standalone example on some boards.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu>

common/bootstage.c

@@ -156,3 +156,20 @@ void bootstage_report(void)
 			"- please increase CONFIG_BOOTSTAGE_USER_COUNT\n",
 		       next_id - BOOTSTAGE_ID_COUNT);
 }
+
+ulong __timer_get_boot_us(void)
+{
+	static ulong base_time;
+
+	/*
+	 * We can't implement this properly. Return 0 on the first call and
+	 * larger values after that.
+	 */
+	if (base_time)
+		return get_timer(base_time) * 1000;
+	base_time = get_timer(0);
+	return 0;
+}
+
+ulong timer_get_boot_us(void)
+	__attribute__((weak, alias("__timer_get_boot_us")));

include/bootstage.h

@@ -203,6 +203,13 @@ enum bootstage_id {
 	BOOTSTAGE_ID_ALLOC,
 };
 
+/*
+ * Return the time since boot in microseconds, This is needed for bootstage
+ * and should be defined in CPU- or board-specific code. If undefined then
+ * millisecond resolution will be used (the standard get_timer()).
+ */
+ulong timer_get_boot_us(void);
+
 /*
  * Board code can implement show_boot_progress() if needed.
  *

include/common.h

@@ -206,13 +206,6 @@ typedef void (interrupt_handler_t)(void *);
 
 #endif /* CONFIG_SERIAL_MULTI */
 
-/*
- * Return the time since boot in microseconds, This is needed for bootstage
- * and should be defined in CPU- or board-specific code. If undefined then
- * millisecond resolution will be used (the standard get_timer()).
- */
-ulong timer_get_boot_us(void);
-
 /*
  * General Purpose Utilities
  */

lib/time.c

@@ -47,20 +47,3 @@ void mdelay(unsigned long msec)
 	while (msec--)
 		udelay(1000);
 }
-
-ulong __timer_get_boot_us(void)
-{
-	static ulong base_time;
-
-	/*
-	 * We can't implement this properly. Return 0 on the first call and
-	 * larger values after that.
-	 */
-	if (base_time)
-		return get_timer(base_time) * 1000;
-	base_time = get_timer(0);
-	return 0;
-}
-
-ulong timer_get_boot_us(void)
-	__attribute__((weak, alias("__timer_get_boot_us")));