Peter Meerwald wrote: > Hello, > > I am wondering if an OMAP3 (say dm3730) can generate the hsusb0_clk (musb) > for ULPI by itself? (and if so, how?) > > is hsusb0_clk strictly an input depending on an external clock source? > > looking at the DM3730 TRM I am not entirely sure
For MUSB, no it cannot do that. HSUSB0 is strictly ULPI output clocking mode, which means the transceiver provides a 60 MHz clock to the OMAP. For the OMAP, this signal has to be an input. For the EHCI controller on OMAP3 (hsusb1/2), it's the other way around. The clock line is ULPI input clocking mode and the OMAP provides the 60MHz clock to the PHY. Only a small number of transceivers can accept this input clock. - Anand -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
