CONFIG_ARCH_OMAP1 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
TI OMAP1
configname: CONFIG_ARCH_OMAP1
OMAP System Type
└─>TI OMAP1
In linux kernel since version 2.6.13 (release Date: 2005-08-28)
"Systems based on omap7xx, omap15xx or omap16xx"