From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oa0-f49.google.com (mail-oa0-f49.google.com [209.85.219.49]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id D26B92C030A for ; Fri, 21 Feb 2014 05:56:20 +1100 (EST) Received: by mail-oa0-f49.google.com with SMTP id i4so350672oah.8 for ; Thu, 20 Feb 2014 10:56:16 -0800 (PST) Received: from [10.10.0.165] ([72.34.182.10]) by mx.google.com with ESMTPSA id g4sm1605304obe.5.2014.02.20.10.56.15 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 20 Feb 2014 10:56:15 -0800 (PST) Message-ID: <53064FC9.8070908@servergy.com> Date: Thu, 20 Feb 2014 12:56:09 -0600 From: Ruchika MIME-Version: 1.0 To: linuxppc-dev@lists.ozlabs.org Subject: Re: Question about EHCI on P4080 References: <530598D7.5080602@servergy.com> In-Reply-To: <530598D7.5080602@servergy.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , linuxppc, Is there another mailing list which is more appropriate ? If so I'd be happy to get a recommendation. Thank you Regards ruchika On 2/19/2014 11:55 PM, Ruchika wrote: > Hi, > I've been trying to understand why the uboot code is unable to work with > USB1.1 devices. > On a USB analyzer: > I notice on an analyzer that there are no SOF or IN tokens seen on the > bus at all. The only after the very first setup packet is sent and ACK'd. > > The board has a hub chip on it connected to the USB controller via a > Ulpi interface. > > Uboot debug indicates that the transfer times out and was still "Active" > > The kernel code indicates that a companion driver handles 1.1 devices. > Does this mean there are 2 HCD's, one for HS and one for FS/LS in the > kernel ? > Thank you > > > ruchika