env setup
-
~/git/rpi-4/u-boot-2019.10-rc4
# u-boot version -
export PATH=/Volumes/aarch64/aarch64-unknown-linux-gnu/bin:$PATH
# cross compiler -
# export PATH=$PATH:/Users/lingkong/tool-chain/gcc-arm-none-eabi-9-2020-q2-update/share/doc/gcc-arm-none-eabi/bin
## do not use this -
make ARCH=arm CROSS_COMPILE=aarch64-unknown-linux-gnu-
# make