On Friday, February 07, 2014 at 05:53:50 PM, Stephen Warren wrote: > From: Stephen Warren <swar...@nvidia.com> > > Section 4.10.2 "Advance Queue" of ehci-specification-for-usb.pdf > specifies how an EHCI controller loads a new QTD for processing if the > QH is not already marked as active. It states: > > ===== > If the field Bytes to Transfer is not zero and the T-bit in the Alternate > Next qTD Pointer is set to zero, then the host controller uses the > Alternate Next qTD Pointer. Otherwise, the host controller uses the Next > qTD Pointer. If Next qTD Pointer’s T-bit is set to a one, then the host > controller exits this state and uses the horizontal pointer to the next > schedule data structure. > ===== > > Hence, we must ensure that the alternate next QTD pointer's T-bit > (TERMINATE) is set, so the EHCI controller knows to use the next QTD > pointer. > > Signed-off-by: Stephen Warren <swar...@nvidia.com>
Applied, thanks. Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
