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导入交叉编译链

export PATH=$PATH:/home/forlinx/git/OK3568-linux-source/prebuilts/gcc/linux-x86/aarch64/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin

编译uboot

cd /u-boot
make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- distclean
make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- rk3568_defconfig
make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- -j4

编译kernel

cd /kernel
make ARCH=arm64 OK3568-C-linux_defconfig
make ARCH=arm64 OK3568-C-linux.img -j4
make ARCH=arm64 modules -j4
make ARCH=arm64 modules_install INSTALL_MOD_PATH=../buildroot/output/OK3568/target/

编译buildroot

cd /buildroot
make OK3568_defconfig O=~/OK3568-linux-source/buildroot/output/OK3568
./utils/brmake O=~/OK3568-linux-source/buildroot/output/OK3568