CONFIG_SUPERH is not available for thedefaultarchitecture x86.
Result is shown for architecture sh

CONFIG_SUPERH (not configurable)

modulename: setup-bus.ko

configname: CONFIG_SUPERH

Linux Kernel Configuration
└─>SUPERH
In linux kernel since version 2.6.12  
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
gaming console. The SuperH port has a home page at
<http://www.linux-sh.org/>.

source code:
drivers/pci/
selects
CONFIG_EXPERT
CONFIG_CLKDEV_LOOKUP
CONFIG_HAVE_IDE
CONFIG_HAVE_MEMBLOCK
CONFIG_HAVE_OPROFILE
CONFIG_HAVE_GENERIC_DMA_COHERENT
CONFIG_HAVE_ARCH_TRACEHOOK
CONFIG_HAVE_DMA_API_DEBUG
CONFIG_HAVE_DMA_ATTRS
CONFIG_HAVE_IRQ_WORK
CONFIG_HAVE_PERF_EVENTS
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
CONFIG_PERF_USE_VMALLOC
CONFIG_HAVE_KERNEL_GZIP
CONFIG_HAVE_KERNEL_BZIP2
CONFIG_HAVE_KERNEL_LZMA
CONFIG_HAVE_KERNEL_XZ
CONFIG_HAVE_KERNEL_LZO
CONFIG_HAVE_SYSCALL_TRACEPOINTS
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API
CONFIG_HAVE_GENERIC_HARDIRQS
CONFIG_HAVE_SPARSE_IRQ
CONFIG_IRQ_FORCED_THREADING
CONFIG_RTC_LIB
CONFIG_GENERIC_ATOMIC64
CONFIG_GENERIC_IRQ_SHOW