diff --git a/config/sources/families/include/rockchip64_common.inc b/config/sources/families/include/rockchip64_common.inc
index a48b4fb05..65b0e9e2f 100644
--- a/config/sources/families/include/rockchip64_common.inc
+++ b/config/sources/families/include/rockchip64_common.inc
@@ -15,6 +15,7 @@ ATFBRANCH='branch:rockchip'
 ATF_USE_GCC='> 6.3'
 GOVERNOR="ondemand"
 CPUMAX="2016000"
+CPUMIN="600000"
 
 if [[ $BOOTCONFIG == *3328* ]]; then