Build uBoot

Clone uBoot repo

git clone https://github.com/MiyooCFW/uboot.git
cd uboot

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Build uBoot locally

You need to have SDK installed in /opt/miyoo directory

• set environment variables inline with SDK location:

export PATH=$PATH:/opt/miyoo/bin
export ARCH=arm
export CROSS_COMPILE=arm-linux-

• build uBoot

make miyoo_defconfig
make

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build uBoot using docker with MiyooCFW Toolchain:

cd uboot
docker run --volume ./:/src/ -it miyoocfw/toolchain-shared-uclibc:latest
cd /src
make miyoo_defconfig
make

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install uboot on SD card

dd if=./u-boot-sunxi-with-spl.bin of=/dev/mmcblk0 bs=1024 seek=8