https://www.sohu.com/a/75195630_354899 https://github.com/allw | 欧式的频道

https://www.sohu.com/a/75195630_354899
https://github.com/allwinner-zh/linux-3.4-sunxi/blob/bd5637f7297c6abf78f93b31fc1dd33f2c1a9f76/arch/arm/mach-sunxi/sunxi-debug.c#L41