How to Disable USB support in am335x

Hi Shammi,

You can either use make menuconfig and deselect all USB driver related features in your kernel, see: processors.wiki.ti.com/.../UsbgeneralpageLinux-v3p1

Or in your omap2plus_defconfig change all USB configs to n. That is in arch/arm/configs change the following:
CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_MON=y
CONFIG_USB_WDM=y
CONFIG_USB_STORAGE=y
CONFIG_USB_DWC3=m
CONFIG_USB_TEST=y
CONFIG_NOP_USB_XCEIV=y
CONFIG_OMAP_USB2=y
CONFIG_TI_PIPE3=y
CONFIG_AM335X_PHY_USB=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_DEBUG=y
CONFIG_USB_GADGET_DEBUG_FILES=y
CONFIG_USB_GADGET_DEBUG_FS=y
CONFIG_USB_ZERO=m

To:
CONFIG_USB=n
CONFIG_USB_DEBUG=n
CONFIG_USB_ANNOUNCE_NEW_DEVICES=n
CONFIG_USB_MON=n
CONFIG_USB_WDM=n
CONFIG_USB_STORAGE=n
CONFIG_USB_DWC3=n
CONFIG_USB_TEST=n
CONFIG_NOP_USB_XCEIVn
CONFIG_OMAP_USB2=n
CONFIG_TI_PIPE3=n
CONFIG_AM335X_PHY_USB=n
CONFIG_USB_GADGET=n
CONFIG_USB_GADGET_DEBUG=n
CONFIG_USB_GADGET_DEBUG_FILES=n
CONFIG_USB_GADGET_DEBUG_FS=n
CONFIG_USB_ZERO=n

Best Regards,
Yordan

Changing kernel config option
CONFIG_USB_SUPPORT=y
to
# CONFIG_USB_SUPPORT is not set
will disable all USB related options, therefor disable USB support.