• Set up a Build Environment
• Downloading the Android Source
• Install Toolchains for the Amlogic Platform

Build U-Boot:

$ cd PATH_YOUR_PROJECT
$ cd bootloader/uboot-repo/
$ ./mk kvim5 --fastboot-write --avb2 --vab

Gernerate images in this step:

• build/u-boot.bin.signed: for onboard eMMC storage booting
• build/u-boot.bin.sd.bin.signed: for external TF card booting

Build Linux Kernel:

$ ./mk kvim5 -v common16-6.12 -jN

Build Android:

$ cd PATH_YOUR_PROJECT
$ . build/envsetup.sh
$ lunch kvim5_arm64-bp4a-userdebug
$ make -jN
$ make -jN otapackage

Gernerate images in this step: out/target/product/kvim5/update.img.

Build Script Demo:

demo.sh

$ cat demo.sh
#!/bin/bash
 
#build uboot
if [ "$1" == 'u' ] || [ "$1" == 'n' ]; then	
	echo "build uboot"
	cd bootloader/uboot-repo/
if [ "$2" == 'n' ] || [ "$1" == 'n' ]; then
	make clean	
	echo "build uboot n"
fi	
	./mk kvim5 --fastboot-write --avb2 --vab
	cd -
fi
 
#build kernel
if [ "$1" == 'k' ] || [ "$1" == 'n' ]; then
	echo "build kernel"
if [ "$2" == 'n' ] || [ "$1" == 'n' ]; then
	rm -rf common/common16-6.12/out
fi	
	./mk kvim5 -v common16-6.12 -j88
fi
 
#build android
if [ "$1" == 'a' ] || [ "$1" == 'n' ]; then
	echo "build android" 
if [ "$2" == 'n' ] || [ "$1" == 'n' ]; then
	rm -rf out/
fi
	source build/envsetup.sh
 	lunch kvim5_arm64-bp4a-userdebug
#	make installclean
	rm android.log
	make -j88 >> android.log
fi
 
if [ "$1" == 'o' ] || [ "$1" == 'n' ]; then
	echo "build otapackage" 
	source build/envsetup.sh
 	lunch kvim5_arm64-bp4a-userdebug
	make -j88 otapackage
fi

Build U-Boot:

$ ./demo.sh u

Build Kernel:

$ ./demo.sh k

Build Android:

$ ./demo.sh a

Build all:

$ ./demo.sh n