kernelconfig_penguin
CONFIG_ARCH_MX51 is not available for the default architecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_ARCH_MX51.
Result is shown for kernelversion 3.9.9
depends
CONFIG_ARCH_MXC

is depended by
CONFIG_SOC_IMX51

CONFIG_ARCH_MX51 (not configurable)

configname: CONFIG_ARCH_MX51

Linux Kernel Configuration
└─> Freescale i.MX support
└─> ARCH_MX51