From: Wu Zhangjin <wuzhangjin@xxxxxxxxx> for sharing lots of loongson-specific source code among loongson-based machines, there is a need to split the loongson-specific part out to a common/ directory. and the machine-specific files are put in the machine-name/ directory. Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx> -- 1.6.2.1