diff --git a/arch/powerpc/lib/Kconfig b/arch/powerpc/lib/Kconfig
index b30b5ed..d38ba45 100644
--- a/arch/powerpc/lib/Kconfig
+++ b/arch/powerpc/lib/Kconfig
@@ -1,9 +1,9 @@
 config CACHE_FLUSH_WATCHDOG_THRESHOLD
-	int "Bytes to flush between WATCHDOG_RESET calls"
-	default 0
+	int "Bytes to flush between schedule() calls"
+	default 4096
 	help
 	  The flush_cache() function periodically, and by default for
-	  every cache line, calls WATCHDOG_RESET(). When flushing a
-	  large area, that may add a significant amount of
+	  every 4k block, calls schedule() to reset watchdog. When
+	  flushing a large area, that may add a significant amount of
 	  overhead. This option allows you to set a threshold for how
-	  many bytes to flush between each WATCHDOG_RESET call.
+	  many bytes to flush between each schedule() call.