diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c
index c9536fb0ba4af260e723ddc95d39cb8f156d6f51..ff65a7d2b9c9366c689d2efa09b5cc99ec3b5735 100644
--- a/drivers/rtc/rtc-jz4740.c
+++ b/drivers/rtc/rtc-jz4740.c
@@ -82,7 +82,7 @@ static inline uint32_t jz4740_rtc_reg_read(struct jz4740_rtc *rtc, size_t reg)
 static int jz4740_rtc_wait_write_ready(struct jz4740_rtc *rtc)
 {
 	uint32_t ctrl;
-	int timeout = 1000;
+	int timeout = 10000;
 
 	do {
 		ctrl = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_CTRL);
@@ -94,7 +94,7 @@ static int jz4740_rtc_wait_write_ready(struct jz4740_rtc *rtc)
 static inline int jz4780_rtc_enable_write(struct jz4740_rtc *rtc)
 {
 	uint32_t ctrl;
-	int ret, timeout = 1000;
+	int ret, timeout = 10000;
 
 	ret = jz4740_rtc_wait_write_ready(rtc);
 	if (ret != 0)