CONFIG_LOONGSON1_LS1C is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

Loongson LS1C board

modulename: clk-loongson1c.ko

configname: CONFIG_LOONGSON1_LS1C

Machine Type
└─>Loongson LS1C board
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code: