Freescale Layerscape PCIe controller - Host mode

modulename: pci-layerscape.ko

configname: CONFIG_PCI_LAYERSCAPE

Linux Kernel Configuration
└─>Device Drivers
└─>PCI support
└─>PCI controller drivers
└─>DesignWare PCI Core Support
└─>Freescale Layerscape PCIe controller - Host mode
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y here if you want to enable PCIe controller support on Layerscape
SoCs to work in Host mode.
This controller can work either as EP or RC. The RCW[HOST_AGT_PEX]
determines which PCIe controller works in EP mode and which PCIe
controller works in RC mode.

source code:
drivers/pci/controller/dwc/pci-layerscape.c