diff --git a/release/arm64/ROCKPRO64.conf b/release/arm64/ROCKPRO64.conf
index 29d19bd8a46f..fc454e30ec72 100644
--- a/release/arm64/ROCKPRO64.conf
+++ b/release/arm64/ROCKPRO64.conf
@@ -1,35 +1,28 @@
 #!/bin/sh
 #
 # $FreeBSD$
 #
 
 EMBEDDED_TARGET_ARCH="aarch64"
 EMBEDDED_TARGET="arm64"
 EMBEDDEDBUILD=1
 EMBEDDEDPORTS="sysutils/u-boot-rockpro64"
 FAT_SIZE="50m -b 16m"
 FAT_TYPE="16"
 IMAGE_SIZE="3072M"
 KERNEL="GENERIC"
 MD_ARGS="-x 63 -y 255"
 NODOC=1
 PART_SCHEME="GPT"
 export BOARDNAME="ROCKPRO64"
 
 arm_install_uboot() {
 	UBOOT_DIR="/usr/local/share/u-boot/u-boot-rockpro64"
 	UBOOT_FILE_1="idbloader.img"
 	UBOOT_FILE_2="u-boot.itb"
 	chroot ${CHROOTDIR} dd if=${UBOOT_DIR}/${UBOOT_FILE_1} \
 		of=/dev/${mddev} bs=512 seek=64 conv=sync
 	chroot ${CHROOTDIR} dd if=${UBOOT_DIR}/${UBOOT_FILE_2} \
 		of=/dev/${mddev} bs=512 seek=16384 conv=sync
 	return 0
 }
-
-arm_do_quirk() {
-	echo '# Known issue with big.LITTLE' \
-		>> ${CHROOTDIR}/${DESTDIR}/boot/loader.conf
-	echo 'hw.ncpu=4' \
-		>> ${CHROOTDIR}/${DESTDIR}/boot/loader.conf
-}