From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 10 Oct 2006 20:42:13 +0100 (BST) Received: from h155.mvista.com ([63.81.120.155]:62535 "EHLO imap.sh.mvista.com") by ftp.linux-mips.org with ESMTP id S20039915AbWJJTmM (ORCPT ); Tue, 10 Oct 2006 20:42:12 +0100 Received: from [192.168.1.248] (unknown [10.150.0.9]) by imap.sh.mvista.com (Postfix) with ESMTP id 1B08E3ED5; Tue, 10 Oct 2006 12:41:52 -0700 (PDT) Message-ID: <452BF775.6090504@ru.mvista.com> Date: Tue, 10 Oct 2006 23:41:41 +0400 From: Sergei Shtylyov Organization: MontaVista Software Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803 X-Accept-Language: ru, en-us, en-gb MIME-Version: 1.0 To: Dan Malek Cc: Rodolfo Giometti , linux-mips@linux-mips.org Subject: Re: Problem on au1100 USB device support References: <20061010182747.GA14539@enneenne.com> <29381BAC-4A96-4BFE-8E86-836A3564F2F5@embeddedalley.com> In-Reply-To: <29381BAC-4A96-4BFE-8E86-836A3564F2F5@embeddedalley.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 12884 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: sshtylyov@ru.mvista.com Precedence: bulk X-list: linux-mips Hello. Dan Malek wrote: > The device interface just requires too much babysitting > by the CPU to function, and the Linux interrupts > have too much latency to guarantee the CPU can do > what is necessary in a timely fashion. The same is Note that AMD claims that the latency (and other) errata fixed in the late revs of their SOCs. For Au1100, BE and BF revs are claimed to be errata-free. WBR, Sergei