diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 3bf649cd7b83..5457d15bbcc0 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -1423,6 +1423,7 @@ config RTC_DRV_AT91RM9200
 config RTC_DRV_AT91SAM9
 	tristate "AT91SAM9 RTT as RTC"
 	depends on ARCH_AT91 || COMPILE_TEST
+	depends on HAS_IOMEM
 	select MFD_SYSCON
 	help
 	  Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which