CONFIG_PCI is not available for thedefaultarchitecture x86.
Result is shown for architecture m68knommu
PCI support
modulename: pci.ko
and/orpci_v3.ko
and/orpci-quirks.ko
and/orfpga.ko
and/orpcidma.ko
and/orpcic.ko
and/orebus.ko
and/orbios32.ko
and/orm1535plus.ko
and/orpci-dma.ko
and/orpci_auto.ko
and/ormpc52xx_pci.ko
and/orapus_pci.ko
configname: CONFIG_PCI
uClinux/68k (w/o MMU) Kernel Configuration
└─>Bus options (PCI, PCMCIA, EISA, MCA, ISA)
└─>PCI support
In linux kernel since version 2.6.12
Support for PCI bus.