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

ccflags-$(CONFIG_USB_CHIPIDEA_DEBUG) := -DDEBUG

obj-$(CONFIG_USB_CHIPIDEA)		+= ci_hdrc.o

ci_hdrc-y				:= core.o otg.o
ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC)	+= udc.o
ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST)	+= host.o
ci_hdrc-$(CONFIG_USB_CHIPIDEA_DEBUG)	+= debug.o
ci_hdrc-$(CONFIG_USB_OTG_FSM)		+= otg_fsm.o

# Glue/Bridge layers go here

obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_msm.o
obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_zevio.o

# PCI doesn't provide stubs, need to check
ifneq ($(CONFIG_PCI),)
	obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_pci.o
endif

ifneq ($(CONFIG_OF),)
	obj-$(CONFIG_USB_CHIPIDEA)	+= usbmisc_imx.o ci_hdrc_imx.o
endif