CONFIG_MIPS_DB1000 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
default or selected kernelversion does not have config value CONFIG_MIPS_DB1000.
Result is shown for kernelversion 6.5.1

Alchemy DB1000/DB1500/DB1100 PB1500/1100 boards

modulename: db1000.ko

configname: CONFIG_MIPS_DB1000

Machine type
└─>Alchemy DB1000/DB1500/DB1100 PB1500/1100 boards
In linux kernel since version 2.6.12  
source code:
arch/mips/alchemy/devboards/db1000.c