diff --git a/target/linux/sunxi/cortexa53/config-6.12 b/target/linux/sunxi/cortexa53/config-6.12
index d0ea3e6f196..824817f7f41 100644
--- a/target/linux/sunxi/cortexa53/config-6.12
+++ b/target/linux/sunxi/cortexa53/config-6.12
@@ -81,6 +81,8 @@ CONFIG_QUEUED_RWLOCKS=y
 CONFIG_QUEUED_SPINLOCKS=y
 CONFIG_RANDOMIZE_KSTACK_OFFSET=y
 CONFIG_RODATA_FULL_DEFAULT_ENABLED=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_SUN6I=y
 # CONFIG_SCHED_CLUSTER is not set
 # CONFIG_SHADOW_CALL_STACK is not set
 # CONFIG_SND_SUN50I_CODEC_ANALOG is not set
@@ -97,7 +99,7 @@ CONFIG_SUN50I_ERRATUM_UNKNOWN1=y
 CONFIG_SUN50I_H616_CCU=y
 CONFIG_SUN50I_H6_CCU=y
 CONFIG_SUN50I_H6_R_CCU=y
-# CONFIG_SUN6I_RTC_CCU is not set
+CONFIG_SUN6I_RTC_CCU=y
 CONFIG_SURFACE_PLATFORMS=y
 CONFIG_SYSCTL_EXCEPTION_TRACE=y
 CONFIG_THREAD_INFO_IN_TASK=y