CONFIG_SOC_AM33XX is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

TI AM33XX

modulename: irq.ko

and/or

am33xx-restart.ko

and/or

powerdomains33xx_data.ko

and/or

clockdomains33xx_data.ko

and/or

omap_hwmod_33xx_data.ko

and/or

omap_hwmod_33xx_43xx_interconnect_data.ko

and/or

omap_hwmod_33xx_43xx_ipblock_data.ko

configname: CONFIG_SOC_AM33XX

Linux Kernel Configuration
└─>TI OMAP/AM/DM/DRA Family
└─>TI AM33XX
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
arch/arm/mach-omap2/irq.c
selects
CONFIG_ARCH_OMAP2PLUS
CONFIG_ARCH_HAS_OPP
CONFIG_ARM_CPU_SUSPEND


is selected by
CONFIG_RTC_DRV_OMAP