CONFIG_MACH_DA8XX_DT is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Support DA8XX platforms using device tree
modulename: da8xx-dt.ko
configname: CONFIG_MACH_DA8XX_DT
Linux Kernel Configuration
└─>TI DaVinci Implementations
└─>Support DA8XX platforms using device tree
In linux kernel since version 3.1 (release Date: 2011-10-24)
Say y here to include support for TI DaVinci DA850 based using
Flattened Device Tree. More information at Documentation/devicetree
Flattened Device Tree. More information at Documentation/devicetree