diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 915a388..bdb953e 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -34,6 +34,7 @@
 	bool
 
 config SUN4I_TIMER
+	select CLKSRC_MMIO
 	bool
 
 config VT8500_TIMER