Hi there,
i can osberve same strange thing on Xilinx ZYNQ.
But really strange is: I'm having a couple of USB-sticks on my desk, about 5pcs. Exactly one of them is working without any trouble.
My testfile is ~16MB, with the magic usb-stick i can read the whole 16MB without errors. With all the other sticks i get this timeouts.
best regards, Hannes
On 02/03/2016 08:40 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.schrempf@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.