1 files changed, 2 insertions, 0 deletions

diff --git a/firmware/drivers/rtc/rtc_jz4740.c b/firmware/drivers/rtc/rtc_jz4740.c
index 61ee0e0c7b..479e3591db 100644
--- a/firmware/drivers/rtc/rtc_jz4740.c
+++ b/firmware/drivers/rtc/rtc_jz4740.c
@@ -162,7 +162,9 @@ int rtc_write_datetime(unsigned char* buf)
     
     lval = jz_mktime(year, rtc_tm->tm_mon, rtc_tm->tm_mday, rtc_tm->tm_hour,
                      rtc_tm->tm_min, rtc_tm->tm_sec);
+
     __cpm_start_rtc();
+    udelay(100);
     REG_RTC_RSR = lval;
     __cpm_stop_rtc();