CONFIG_ARCH_OMAP2PLUS is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
TI OMAP2/3/4/5 SoCs with device tree support
configname: CONFIG_ARCH_OMAP2PLUS
Linux Kernel Configuration
└─>TI OMAP2/3/4/5 SoCs with device tree support
In linux kernel since version 2.6.34 (release Date: 2010-05-16)
Systems based on OMAP2, OMAP3, OMAP4 or OMAP5
selects
CONFIG_ARCH_HAS_CPUFREQCONFIG_ARCH_HAS_HOLES_MEMORYMODEL
CONFIG_ARCH_OMAP
CONFIG_ARCH_REQUIRE_GPIOLIB
CONFIG_CLKDEV_LOOKUP
CONFIG_CLKSRC_MMIO
CONFIG_GENERIC_CLOCKEVENTS
CONFIG_GENERIC_IRQ_CHIP
CONFIG_HAVE_CLK
CONFIG_OMAP_DM_TIMER
CONFIG_PINCTRL
CONFIG_PROC_DEVICETREE
CONFIG_SPARSE_IRQ
CONFIG_USE_OF