From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 20 Mar 2007 16:24:58 +0000 (GMT) Received: from h155.mvista.com ([63.81.120.155]:57062 "EHLO imap.sh.mvista.com") by ftp.linux-mips.org with ESMTP id S20022224AbXCTQY4 (ORCPT ); Tue, 20 Mar 2007 16:24:56 +0000 Received: from [192.168.1.248] (unknown [10.150.0.9]) by imap.sh.mvista.com (Postfix) with ESMTP id A35CB3ED1; Tue, 20 Mar 2007 09:24:21 -0700 (PDT) Message-ID: <46000ADD.3050309@ru.mvista.com> Date: Tue, 20 Mar 2007 19:25:01 +0300 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: Marco Braga Cc: linux-mips@linux-mips.org Subject: Re: Au1500 and TI PCI1510 cardbus References: <200703200204.l2K24WgH020041@centurysys.co.jp> <45FFEDED.6060708@ru.mvista.com> <45FFFE8B.1010806@ru.mvista.com> <4600052B.40901@ru.mvista.com> In-Reply-To: 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: 14595 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. Marco Braga wrote: >> > I think I'm beginning to make a lot of confusion. Is the problem that >> the >> > PCI1510 must NOT be behind a bridge, or the problem is that PCI1510 >> acts >> as >> > a bridge, so cardbus cards cannot work? >> The second. > Ok, at the risk of appearing totally dumb, I'll double check.. If the > second > ic correct, PCI1510 is a bridce, a cardbus card cannot work. Yeah. Note that it's not totally broken -- you just can't use the "decent" devices on it, i.e. ones with bus mastering. >> You can see yourself that PCI1510 is a bridge (Cardbus-to-PCI bridge is >> largely the same as PCI-to-PCI bridge). > Ok. Yeah, that's an importnat point. AMD docs don't say about CardBus bridges, So, it was probably obvious to me only. :-) >> So it seems that the 3Com card is behind a bus. Should this work? From >> what >> > I've understood, it should now work.. >> Think again. :-) > Ok, that's a typo :-) It should NOT work. Is this better? > Sounds like what's been told in the errata 32. > It seems that Au1500 slowly faded into the shadows. Now it is owned by > Raza, but there is no sign of an errata document, perhaps I've lost the > magic moment when a lot of documentation was available. The errata has been available only from the AMD's developer site. > But still, the question remains: how can Takeyoshi's "Ricoh CardBus Bridge" > work with a cardbus card if bridges cannot work with Au1500's PCI? > Scrub scrub.. WBR, Sergei