diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index cc16fdcf98af1a84c81126525a974ce81bbffc74..184321b88a682eebe3f2dc22623cb6847d8d2b6d 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -405,6 +405,11 @@ static unsigned long timer_ticks_per_nsec_quotient __read_mostly;
 
 int update_persistent_clock(struct timespec now)
 {
+	struct rtc_device *rtc = rtc_class_open("rtc0");
+
+	if (rtc)
+		return rtc_set_mmss(rtc, now.tv_sec);
+
 	return set_rtc_mmss(now.tv_sec);
 }