comment "ULPI drivers" config USB_ULPI bool "ULPI support" depends on USB_HOST help Select to commnicate with USB PHY via ULPI interface. The ULPI (UTMI Low Pin (count) Interface) is a wrapper on UTMI+ core that is used as PHY Transreceiver for USB controllers. This driver uses ULPI viewports that are specific for each SoC. choice prompt "ULPI Viewport type" depends on USB_ULPI help Select ULPI viewport (SoC-side interface to ULPI) implementation appropriate for the device if you want to communicate with UTMI (USB PHY) via ULPI interface. config USB_ULPI_VIEWPORT bool "Generic ULPI Viewport" depends on USB_ULPI help Support generic ULPI Viewport implementation that is used on some Tegra and Snapdragon devices. endchoice