CONFIG_ARCH_FOOTBRIDGE is not available for the selected architecture x86.
Result is shown for architecture arm
FootBridge Implementations
configname: CONFIG_ARCH_FOOTBRIDGE
Linux Kernel Configuration
└─>FootBridge Implementations
In linux kernel since version 2.6.12 )
Support for systems based on the DC21285 companion chip
("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
selects
CONFIG_ARCH_NO_SG_CHAINCONFIG_CPU_SA110
CONFIG_FOOTBRIDGE
CONFIG_NEED_MACH_MEMORY_H
CONFIG_GENERIC_CLOCKEVENTS
CONFIG_HAVE_IDE
CONFIG_NEED_MACH_IO_H