[U-Boot-Users] usb storage class CTL timeout problem
Hi,
Does anyone know why some USB mass storage devices work and some don't on the same board with the same u-boot 1.1.3? I was able to track the msg down to hc_interrupt() used by submit_common_msg() in ./cpu/mpc5xxx/usb_ohci.c file. The hc_interrupt() always return 0xff (SF) and the submit_common_msg() in its for-loop times out on SF eventually.
Regards,
Winston
=> usb reset (Re)start USB... USB: scanning bus for devices... 2 USB Devices found => usb scan Scan for storage device: scanning bus for storage devices... ERROR: CTL:TIMEOUT Device 0: Vendor: ChipsBnk Prod.: Flash Disk Rev: 2.00 Type: Removable Hard Disk Capacity: 125.6 MB = 0.1 GB (257344 x 512) => usb scan Scan for storage device: scanning bus for storage devices... ERROR: CTL:TIMEOUT ERROR: CTL:TIMEOUT ERROR: CTL:TIMEOUT ERROR: CTL:TIMEOUT ERROR: CTL:TIMEOUT
--- Winston Lin winston.lin@freescale.com wrote:
Hi,
Does anyone know why some USB mass storage devices work and some don't on the
I seem to remember a long time ago I had to increase the delays in the OHCI driver to get it to work. It's been a long time since I worked on it so I can't be more speicific then that...
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In message loom.20060517T001440-141@post.gmane.org you wrote:
Does anyone know why some USB mass storage devices work and some don't on the same board with the same u-boot 1.1.3? I was able to track the msg down to
Because some are of poor quality and violate the USB specification?
BTW: did you try using a recent version of U-Boot?
Best regards,
Wolfgang Denk
I have the same problem with two different USB memory devices. I am using U-boot 1.1.3 (I can not update it) on Freescale Media5200
One USB memory device is "Cruiser Micro USB Flash Drive". I do not know type of another USB device. One device does not work at all. Another works very unstable. This message may start appearing at any time. USB is virtually useless under U-boot in my case.
Both of these USB memory devices works well with any other computers and devices. Moreover any of them work well even with Media5200 when other system is running. So I suspect that it is more probable that U-boot USB driver has poor quality and probably violates USB specification. Isn't?
-- View this message in context: http://www.nabble.com/usb-storage-class-CTL-timeout-problem-t1632475.html#a5... Sent from the Uboot - Users forum at Nabble.com.
participants (4)
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Frank -
Privet -
Winston Lin -
Wolfgang Denk