Hi Andy, On 12/2/09, Andy Green <andy@xxxxxxxxxxx> wrote: > > What did you do with your chip select line on the ULPI PHY? > I turn this line (CS_N) low before initializing ISP1504. > The first iMX LiteKIT board I had was an old revision where they had > tied the PHY chip select pin asserted. The ULPI PHY acted braindamaged > because glitchy junk from during poweron / reset was taken as real data > and it never recovered during the session. > > Later versions of the LiteKIT changed this to be pulled deasserted and a > GPIO can drive it asserted after reset is all done. After I got a later > revision with that mod, and drove the GPIO, suddenly all was well. > I was thinking it could be some hw issues, but this is not, because using old kernel everything works fine. Best Regards, Alan -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
