EHCI timed out on TD - token=XXXX

[abhaykumar_sing]

Hi,

I am working on iMX6 which has YOCTO rocko with framebuffer distro.  And i am trying to detect a flash USB drive and USB card reader in U-Boot but it is throwing an error of EHCI timed out on TD - token=0x80008c80 ."unable to get device descripter" . This is when i am trying to detect it using USB start in the uboot itself. Also when i give the command USB reset and then try to again read the USB it is detected. 

I have tried to also increase the detection time of the USB and also the number of retries. As sometimes some flash drives need a little bit more time for them to be detected. But no response yet.

[igorpadykov]

Hi abhay

one can try with nxp uboot

uboot-imx - i.MX U-Boot 

and check usb hardware: in particular try with other usb sticks,

VDDUSB_CAP voltage, 24MHz crystal stability and other processor supplies

using i.MX6 System Development User’s Guide

https://www.nxp.com/docs/en/user-guide/IMX6DQ6SDLHDG.pdf

Best regards
igor
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