Re: [U-Boot] EHCI timed out on TD - token=0x80008d80

On 04/22/2016 09:19 AM, Manjunath wrote:

Hello Marek,

I checked with mainline uboot as well. The issue is now clearer. Here are some info:

1. The board uses SMARC module
2. Whenever reboot command is given the usb is detected correctly.
3. When i give a hard reset, the following log is seen.

U-Boot > usb start (Re)start USB... USB0: USB EHCI 1.00 scanning bus 0 for devices... EHCI timed out on TD - token=0x80008c80 1 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found

4. Again i boot and do a soft reboot, the same USB is detected.

This is definitely something related to power.

This is something mysterious for me. Anybody has any clue please let me know.

Try setenv usb_pgood_delay 10000 , increases delay after enabling port power.

Best regards, Marek Vasut