Dear Mr. Wolfgang, I found the issue. In usb_stor_get_info function of common/usb_storage.c I add the following: (dev->descriptor.idVendor == 0x0204 && dev->descriptor.idProduct == 0x6025)
to skip the ss->transport_reset(ss);. This I took out from the linux kernel code. Now its working for me. Regards Debashish -----Original Message----- From: Wolfgang Denk [mailto:w...@denx.de] Sent: Wednesday, November 24, 2010 9:56 PM To: Debashish Rath Cc: u-boot@lists.denx.de Subject: Re: [U-Boot] "usb reset" issue with some pen drives which work well in Linux/Windows Dear Debashish Rath, In message <24a35c16137fe049838d189639dd567f083d4...@eu-exh-02.eu.trid.com> you wrote: > > I was trying to add usb support to u-boot for my Arm cortex-A9 processor ba= > sed board. I am using "U-Boot 2009.08". Before trying anything else, please update to current code and re-run your tests. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de "If you'll excuse me a minute, I'm going to have a cup of coffee." - broadcast from Apollo 11's LEM, "Eagle", to Johnson Space Center, Houston July 20, 1969, 7:27 P.M. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot