https://blog.wongcw.com/2020/10/18/%e5%90%9b%e6%ad%a3x2000-x2000e-mips-iot%e8%99%95%e7%90%86%e5%99%a8%e5%b0%87%e8%a2%ablinux-5-10%e6%94%af%e6%8c%81/