RE: [RFC / PATCH 1/6] OMAP : Add USB transceiver interface type

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> >-extern void usb_musb_init(void);
> >+enum musb_interface	{MUSB_INTERFACE_ULPI, MUSB_INTERFACE_UTMI};
> 
> aren't there 3 possible cases on omaps ?
> . 8-pin PHY interface, UTMI+ level 3
> . 12-pin PHY interface, 8-bit SDR ULPI
> . 8-pin PHY interface, 4-bit DDR ULPI
> 

The 8-pin DDR interface is unsupported in OMAPs.

So we can only use the 12-pin SDR ULPI on OMAP3,
and additionally the on-chip PHY on OMAP4s through
the UTMI+ interface.

- Anand
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