CONFIG_ARCH_MXS is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Freescale MXS-based
configname: CONFIG_ARCH_MXS
ARM system type
└─>Freescale MXS-based
In linux kernel since version 2.6.38 (release Date: 2011-03-14)
Support for Freescale MXS-based family of processors
is selected by
CONFIG_SOC_IMX23CONFIG_SOC_IMX28
CONFIG_MACH_MXS_DT
CONFIG_MACH_STMP378X_DEVB
CONFIG_MACH_MX23EVK
CONFIG_MACH_MX28EVK
CONFIG_MODULE_TX28
CONFIG_MODULE_M28
CONFIG_MODULE_APX4
CONFIG_MACH_TX28
CONFIG_MACH_M28EVK
CONFIG_MACH_APX4DEVKIT
CONFIG_SERIAL_MXS_AUART
CONFIG_GPIO_MXS
CONFIG_FB_MXS
CONFIG_SND_MXS_SOC