==build sd card==

===toolchain===
 cd /opt
 wget https://releases.linaro.org/archive/14.11/components/toolchain/binaries/aarch64-linux-gnu/gcc-linaro-4.9-2014.11-x86_64_aarch64-linux-gnu.tar.xz
 tar -xvf gcc-linaro-4.9-2014.11- x86_64_aarch64-linux-gnu.tar.xz
 
 apt-get install u-boot-tools zlib1g:i386
 

===u-boot===
 git clone git://git.freescale.com/auto/u-boot.git sv32-u-boot
 cd sv32-u-boot
 git checkout v2016.01_s32v234_0.7
 
 export CROSS_COMPILE=aarch64-linux-gnu- 
 export ARCH=aarch64 
 make s32v234evb_config
 make -j4

===kernel===
 git clone git://git.freescale.com/auto/linux.git sv32-kernel
 cd sv32-kernel
 git checkout v4.1.17_s32v234_0.7

 export CROSS_COMPILE=aarch64-linux-gnu- 
 export ARCH=aarch64 
 
 make s32v234_defconfig
 make -j16
 mkimage -A arm64 -O linux -T kernel -C none -a 0x80080000 -e 0x80080000 -n "Linux" -d arch/arm64/boot/Image arch/arm64/boot/uImage


===buildroot===
 git clone git://git.freescale.com/auto/buildroot.git
 cd buildroot
 git checkout –b <branch_name> 2015.08-rc1_s32v234_0.7 

 make distclean
 make s32v234_defconfig
 make


===yocto===



==install sd card==