On Tue, 2016-05-03 at 22:51 +0200, Marek Vasut wrote: > The USB function can respond to a Setup packet with ACK or, in > case it's busy, it can ignore the Setup packet. The USB function > usually gets busy if we hammer it with Control EP transfers too > much (ie. sending multiple Get Descriptor requests in a single > microframe tends to trigger it on certain USB sticks). The DWC2 > controller will interpret not receiving an ACK after Setup packet > as XACTERR. Check for this condition and if it happens, retry > sending the Setup packet. > > Signed-off-by: Marek Vasut <ma...@denx.de> > Cc: Chin Liang See <cl...@altera.com> > Cc: Dinh Nguyen <dingu...@opensource.altera.com> > Cc: Hans de Goede <hdego...@redhat.com> > Cc: Stefan Roese <s...@denx.de> > Cc: Stephen Warren <swar...@nvidia.com> > --- > drivers/usb/host/dwc2.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) >
Reviewed-by: Chin Liang See <cl...@altera.com> Tested-by: Chin Liang See <cl...@altera.com> Thanks Chin Liang _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
