1. 根目录:
2. arch
3. arm
4. mach-imx
5. ulpi.h

#ifndef __MACH_ULPI_H
#define __MACH_ULPI_H

#ifdef CONFIG_USB_ULPI
struct usb_phy *imx_otg_ulpi_create(unsigned int flags);
#else
static inline struct usb_phy *imx_otg_ulpi_create(unsigned int flags)
{
	return NULL;
}
#endif

extern struct usb_phy_io_ops mxc_ulpi_access_ops;

#endif /* __MACH_ULPI_H */