host : ubuntu-64 12.04 LTS
cross_compile:arm-linux-gnueabihf- (sudo apt-get install g++-arm-linux-gnueabihf)
kernel:sc7731_kernel
dts file :sc7731_kernel/arch/arm/boot/dts/sprd-scx35_sp7731gea.dts
config file:sc7731_kernel/arch/arm/configs/sp7731gea-dt_defconfig
u-boot:sc7731_u-boot
u-boot config:sp7731gea_config
pcDuino sc7731 board