1 Reference code ""drivers/usb/ulpi/omap-ulpi-viewport.c"
3 Contains the ulpi read write api's to perform
4 any ulpi phy port access on omap platform.
6 On omap ehci reg map contains INSNREG05_ULPI
7 register which offers the ulpi phy access so
8 any ulpi phy commands should be passsed using this
11 omap-ulpi-viewport.c is a low level function
12 implementation of "drivers/usb/ulpi/ulpi.c"
14 To enable and use omap-ulpi-viewport.c
15 we require CONFIG_USB_ULPI_VIEWPORT_OMAP and
16 CONFIG_USB_ULPI be enabled in config file.
18 Any ulpi ops request can be done with ulpi.c
19 and soc specific binding and usage is done with
20 omap-ulpi-viewport implementation.
23 omap-ehci driver code requests for ulpi phy reset if
24 ehci is used in phy mode, which will call ulpi phy reset
25 the ulpi phy reset does ulpi_read/write from viewport
26 implementation which will do ulpi reset using the
27 INSNREG05_ULPI register.