CONFIG_CSKY is not available for thedefaultarchitecture x86.
Result is shown for architecture csky

CONFIG_CSKY (not configurable)

configname: CONFIG_CSKY

Linux Kernel Configuration
└─>CSKY
In linux kernel since version 3.10 (release Date: 2013-06-30)  
selects
CONFIG_ARCH_32BIT_OFF_T
CONFIG_ARCH_HAS_DMA_PREP_COHERENT
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL
CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE
CONFIG_ARCH_USE_BUILTIN_BSWAP
CONFIG_ARCH_USE_QUEUED_RWLOCKS
CONFIG_ARCH_USE_QUEUED_SPINLOCKS
CONFIG_ARCH_INLINE_READ_LOCK
CONFIG_ARCH_INLINE_READ_LOCK_BH
CONFIG_ARCH_INLINE_READ_LOCK_IRQ
CONFIG_ARCH_INLINE_READ_LOCK_IRQSAVE
CONFIG_ARCH_INLINE_READ_UNLOCK
CONFIG_ARCH_INLINE_READ_UNLOCK_BH
CONFIG_ARCH_INLINE_READ_UNLOCK_IRQ
CONFIG_ARCH_INLINE_READ_UNLOCK_IRQRESTORE
CONFIG_ARCH_INLINE_WRITE_LOCK
CONFIG_ARCH_INLINE_WRITE_LOCK_BH
CONFIG_ARCH_INLINE_WRITE_LOCK_IRQ
CONFIG_ARCH_INLINE_WRITE_LOCK_IRQSAVE
CONFIG_ARCH_INLINE_WRITE_UNLOCK
CONFIG_ARCH_INLINE_WRITE_UNLOCK_BH
CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQ
CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
CONFIG_ARCH_INLINE_SPIN_TRYLOCK
CONFIG_ARCH_INLINE_SPIN_TRYLOCK_BH
CONFIG_ARCH_INLINE_SPIN_LOCK
CONFIG_ARCH_INLINE_SPIN_LOCK_BH
CONFIG_ARCH_INLINE_SPIN_LOCK_IRQ
CONFIG_ARCH_INLINE_SPIN_LOCK_IRQSAVE
CONFIG_ARCH_INLINE_SPIN_UNLOCK
CONFIG_ARCH_INLINE_SPIN_UNLOCK_BH
CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQ
CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
CONFIG_ARCH_WANT_FRAME_POINTERS
CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
CONFIG_COMMON_CLK
CONFIG_CLKSRC_MMIO
CONFIG_CSKY_MPINTC
CONFIG_CSKY_MP_TIMER
CONFIG_CSKY_APB_INTC
CONFIG_DMA_DIRECT_REMAP
CONFIG_IRQ_DOMAIN
CONFIG_DW_APB_TIMER_OF
CONFIG_GENERIC_IOREMAP
CONFIG_GENERIC_LIB_ASHLDI3
CONFIG_GENERIC_LIB_ASHRDI3
CONFIG_GENERIC_LIB_LSHRDI3
CONFIG_GENERIC_LIB_MULDI3
CONFIG_GENERIC_LIB_CMPDI2
CONFIG_GENERIC_LIB_UCMPDI2
CONFIG_GENERIC_ALLOCATOR
CONFIG_GENERIC_ATOMIC64
CONFIG_GENERIC_CPU_DEVICES
CONFIG_GENERIC_IRQ_CHIP
CONFIG_GENERIC_IRQ_PROBE
CONFIG_GENERIC_IRQ_SHOW
CONFIG_GENERIC_IRQ_MULTI_HANDLER
CONFIG_GENERIC_SCHED_CLOCK
CONFIG_GENERIC_SMP_IDLE_THREAD
CONFIG_GENERIC_TIME_VSYSCALL
CONFIG_GENERIC_VDSO_32
CONFIG_GENERIC_GETTIMEOFDAY
CONFIG_GX6605S_TIMER
CONFIG_HAVE_ARCH_TRACEHOOK
CONFIG_HAVE_ARCH_AUDITSYSCALL
CONFIG_HAVE_ARCH_JUMP_LABEL
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE
CONFIG_HAVE_ARCH_MMAP_RND_BITS
CONFIG_HAVE_ARCH_SECCOMP_FILTER
CONFIG_HAVE_CONTEXT_TRACKING_USER
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN
CONFIG_HAVE_DEBUG_BUGVERBOSE
CONFIG_HAVE_DEBUG_KMEMLEAK
CONFIG_HAVE_DYNAMIC_FTRACE
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS
CONFIG_HAVE_GENERIC_VDSO
CONFIG_HAVE_FUNCTION_TRACER
CONFIG_HAVE_FUNCTION_GRAPH_TRACER
CONFIG_HAVE_FUNCTION_ERROR_INJECTION
CONFIG_HAVE_FTRACE_MCOUNT_RECORD
CONFIG_HAVE_KERNEL_GZIP
CONFIG_HAVE_KERNEL_LZO
CONFIG_HAVE_KERNEL_LZMA
CONFIG_HAVE_KPROBES
CONFIG_HAVE_KPROBES_ON_FTRACE
CONFIG_HAVE_KRETPROBES
CONFIG_HAVE_PERF_EVENTS
CONFIG_HAVE_PERF_REGS
CONFIG_HAVE_PERF_USER_STACK_DUMP
CONFIG_HAVE_DMA_CONTIGUOUS
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API
CONFIG_HAVE_RSEQ
CONFIG_HAVE_STACKPROTECTOR
CONFIG_HAVE_SYSCALL_TRACEPOINTS
CONFIG_LOCK_MM_AND_FIND_VMA
CONFIG_MAY_HAVE_SPARSE_IRQ
CONFIG_MODULES_USE_ELF_RELA
CONFIG_OF
CONFIG_OF_EARLY_FLATTREE
CONFIG_PERF_USE_VMALLOC
CONFIG_RTC_LIB
CONFIG_TIMER_OF
CONFIG_GENERIC_PCI_IOMAP
CONFIG_HAVE_PCI
CONFIG_PCI_DOMAINS_GENERIC
CONFIG_PCI_SYSCALL
CONFIG_PCI_MSI
CONFIG_TRACE_IRQFLAGS_SUPPORT