【U-Boot】建立U-Boot编译环境

https://github.com/khadas/fenix/blob/master/packages/gcc-arm-none-eabi/package.mk

PKG_NAME="gcc-arm-none-eabi"

PKG_VERSION="6-2017-q2-update"

https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads

gcc-arm-none-eabi-8-2019-q3-update-linux.tar.bz2 (101.63 MB)

ftp://ftp.denx.de/pub/u-boot/u-boot-2019.04.tar.bz2

linux-mainline-5.3-rc4

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