1. 根目录:
2. drivers
3. usb
4. dwc2
5. Makefile

ccflags-$(CONFIG_USB_DWC2_DEBUG)	+= -DDEBUG
ccflags-$(CONFIG_USB_DWC2_VERBOSE)	+= -DVERBOSE_DEBUG

obj-$(CONFIG_USB_DWC2)			+= dwc2.o
dwc2-y					:= core.o core_intr.o

ifneq ($(filter y,$(CONFIG_USB_DWC2_HOST) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
	dwc2-y				+= hcd.o hcd_intr.o
	dwc2-y				+= hcd_queue.o hcd_ddma.o
endif

ifneq ($(filter y,$(CONFIG_USB_DWC2_PERIPHERAL) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
	dwc2-y       			+= gadget.o
endif

# NOTE: The previous s3c-hsotg peripheral mode only driver has been moved to
# this location and renamed gadget.c. When building for dynamically linked
# modules, dwc2.ko will get built for host mode, peripheral mode, and dual-role
# mode. The PCI bus interface module will called dwc2_pci.ko and the platform
# interface module will be called dwc2_platform.ko.

obj-$(CONFIG_USB_DWC2_PCI)		+= dwc2_pci.o
dwc2_pci-y				:= pci.o

obj-$(CONFIG_USB_DWC2_PLATFORM)		+= dwc2_platform.o
dwc2_platform-y				:= platform.o