本源码是uboot在bf537芯片上的移植，它是在vdsp++5.0环境下编译的，支持uboot绝大部分常用的命令，方便剪裁-The source is in uboot for bf537 on chip transplantation, it is vdsp++5.0 compiler environment, and support the vast majority of commonly used uboot order to facilitate the tailoring