Basic Uboot Compilation

Install the cross-compile toolchain

Download from:

• https://licheepizero.us/arm-linux-gnueabihf/ (Mirror)
• https://releases.linaro.org/components/toolchain/binaries/6.3-2017.05/arm-linux-gnueabihf/

Use the following commands to install:

• wget https://licheepizero.us/arm-linux-gnueabihf/gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf.tar.xz
• tar xvf gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf.tar.xz
• mv gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf /opt/
• vim /etc/bash.bashrc
• add: PATH="$PATH:/opt/gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf/bin"
• arm-linux-gnueabihf-gcc -v
• sudo apt-get install device-tree-compiler

Download and Compile Uboot

• git clone https://github.com/Lichee-Pi/u-boot.git -b v3s-current
  or git clone https://github.com/Lichee-Pi/u-boot.git -b v3s-spi-experimental
• cd u-boot
• make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LicheePi_Zero_800x480LCD_defconfig
  or make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LicheePi_Zero480x272LCD_defconfig
  or make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LicheePi_Zero_defconfig
• make ARCH=arm menuconfig
• make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- 2>&1 | tee build.log

After success compilation, u-boot-sunxi-with-spl.bin will be generated, you can write it with 8K offset to boot.