[U-Boot] Issue with USB mass storage (thumb drives)

[Fabio Estevam]

Adding Marek in case he has any ideas.

On Tue, Feb 2, 2016 at 8:35 AM, Schrempf Frieder
<frieder.schrempf at exceet.de> wrote:
> Hello,
>
> I'm using U-Boot on a custom i.MX6 board and I'm having problems while
> reading (large) files from USB thumb drives.
> I wouldn't really mind if this only happened with some specific USB
> device, but the problem occurs with 3 out of 4 tested thumb drives while
> loading a 100M test file.
> The devices that work seem to be rather old ones.
>
> The same issue is also reported here:
> https://community.freescale.com/thread/377911
>
> I can reproduce this behaviour with u-boot-imx v2014.04 and with
> mainline u-boot v2015.10 and v2016.01.
>
> Can someone tell me if this is a known issue?
> What could be the reason for this and how can I get this working?
>
> Thanks!
>
>
> U-Boot 2016.01 (Feb 02 2016 - 10:31:32 +0100)
>
> CPU:   Freescale i.MX6SOLO rev1.3 at 792MHz
> CPU:   Industrial temperature grade (-40C to 105C) at 31C
> Reset cause: POR
> Board: MX6EXCEET
> DRAM:  1 GiB
> NAND:  256 MiB
> MMC:   FSL_SDHC: 0, FSL_SDHC: 1
> SF: Detected EN25Q80 with page size 256 Bytes, erase size 4 KiB, total 1 MiB
> No panel detected: default to Hannstar-XGA
> Display: Hannstar-XGA (1024x768)
> In:    serial
> Out:   serial
> Err:   serial
> Net:   Found Micrel KS8051/KS8081 PHY
> FEC
> Hit any key to stop autoboot:  0
> => usb start
> starting USB...
> USB0:   Port not available.
> USB1:   USB EHCI 1.00
> scanning bus 1 for devices... 2 USB Device(s) found
>         scanning usb for storage devices... 1 Storage Device(s) found
>         scanning usb for ethernet devices... 0 Ethernet Device(s) found
> => fatload usb 0 0x18000000 test.file
> reading test.file
> EHCI timed out on TD - token=0xac008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x128d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x801f8c80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x801f8c80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x801f8c80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x801f8c80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> EHCI timed out on TD - token=0x80008d80
> Error reading cluster
> ** Unable to read file test.file **