imx6 关闭 otg host

参考文档：

　　http://www.cnblogs.com/zengjfgit/p/4711336.html

make menuconfig
去掉Support for DR host port on Freescale controller    

    [*] Device Drivers --->
       [*] USB support --->
          [*]   Support for Freescale controller
             [ ]     Support for DR host port on Freescale controller 

使用h查看帮组信息：
Support for DR host port on Freescale controller
CONFIG_USB_EHCI_ARC_OTG:                        

Enable support for the USB OTG port in HS/FS Host mode.      

Symbol: USB_EHCI_ARC_OTG [=n]
Type  : boolean
Prompt: Support for DR host port on Freescale controller
  Defined at drivers/usb/host/Kconfig:80
  Depends on: USB_SUPPORT [=y] && USB_EHCI_ARC [=y]
  Location:
    -> Device Drivers
      -> USB support (USB_SUPPORT [=y])
        -> Support for Freescale controller (USB_EHCI_ARC [=y])

Tony Liu

2016-8-25, Shenzhen