On Wednesday, February 03, 2016 at 08:40:00 AM, Schrempf Frieder wrote: > On 02.02.2016 17:39, Marek Vasut wrote: > > On Tuesday, February 02, 2016 at 05:28:42 PM, Fabio Estevam wrote: > >> Adding Marek in case he has any ideas. > >> > >> On Tue, Feb 2, 2016 at 8:35 AM, Schrempf Frieder > >> > >> <frieder.schre...@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 ** > > > > What happens if you do 'dcache off' and then read the file ? > > Unfortunately turning off dcache doesn't seem to change the behaviour. > I'm still getting the same error messages.
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. You can also try "setenv usb_pgood_delay 10000" , this will increase the time the code takes after reseting root port. Also try adding #define DEBUG to drivers/usb/host/ehci-hcd.c common/usb.c and common/usb_hub.c . You might notice something odd there. The above output shows that your qTD tokens are not processed , see the active bit being set. Details in [1] page 54 (Table 3-16). [1] http://www.intel.com/content/dam/www/public/us/en/documents/technical- specifications/ehci-specification-for-usb.pdf _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
