On Thursday, February 04, 2016 at 09:21:08 AM, Schrempf Frieder wrote:
On 03.02.2016 20:16, Sergei Temerkhanov wrote:
On Wed, Feb 3, 2016 at 8:40 AM, Marek Vasut marex@denx.de wrote:
On Wednesday, February 03, 2016 at 12:49:20 PM, Schrempf Frieder wrote:
On 03.02.2016 12:12, Marek Vasut wrote:
On Wednesday, February 03, 2016 at 11:15:00 AM, Schrempf Frieder wrote:
On 03.02.2016 10:55, Fabio Estevam wrote: > On Wed, Feb 3, 2016 at 7:40 AM, Marek Vasut marex@denx.de wrote: >> In that case, debug time. >> >> Usual problems are bad routing of the tracks on the board , so try >> with USB 1.1 hub and if that works, that's your problem. > > Another suggestion would be to try the 100MB transfer in Linux and > see if this works or not. > > That would help us to narrow down whether this is a hardware or > software problem.
Another thing to try may be limiting the value of USB_MAX_XFER_BLK in common/usb_storage.c
This was a really helpful hint! Thank you Sergei!
I just tried to limit USB_MAX_XFER_BLK to 1/8 of the original value (65535 -> 8191) and this time the transfer works without timeouts.
As we have a customer who needs this working as soon as possible my question now is how to properly solve this. Should I generally limit USB_MAX_XFER_BLK in my u-boot to avoid these errors? Which value to choose?
Nice! Can you share which sticks are those, ideally brand/type and USB IDs ?
Best regards, Marek Vasut