CONFIG_PCIE_CADENCE (not configurable)

modulename: pcie-cadence.ko

configname: CONFIG_PCIE_CADENCE

Linux Kernel Configuration
└─>Device Drivers
└─>PCI support
└─>PCI controller drivers
└─>Cadence-based PCIe controllers
└─>PCIE_CADENCE
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/pci/controller/cadence/pcie-cadence.c
depends
CONFIG_PCI