From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Haigh Subject: Re: sata-sil drive detection issues. Date: Fri, 25 Feb 2011 03:29:13 +1100 Message-ID: <4D668759.1020208@crc.id.au> References: <4D5C92F4.5000906@crc.id.au> <4D5CA2B1.8020905@crc.id.au> <20110217095815.GN19830@htj.dyndns.org> <20110218091629.GC21209@htj.dyndns.org> <4D65C155.7080902@crc.id.au> <20110224083123.GB7840@htj.dyndns.org> <4D662A8B.5050501@crc.id.au> <20110224100609.GF7840@htj.dyndns.org> <4D66859B.3020806@teksavvy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.vm.crc.id.au ([203.56.246.92]:44733 "EHLO mail.vm.crc.id.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754164Ab1BXQ3b (ORCPT ); Thu, 24 Feb 2011 11:29:31 -0500 In-Reply-To: <4D66859B.3020806@teksavvy.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mark Lord Cc: Tejun Heo , linux-ide@vger.kernel.org, justin@jmicron.com On 25/02/2011 3:21 AM, Mark Lord wrote: > On 11-02-24 05:06 AM, Tejun Heo wrote: >> >>> Near the rear: >>> JMB352 / 0834 LGBA1 A / 370JF3011 - This looks to be hooked up via >>> some capacitors to the DATA data lines on both sockets. If I haven't >>> mentioned before, this is a 2 x SATA drive bay cradle. >> >> This is the SATA part. >> >>> A third tiny chip near the JMB352 is: >>> GL850A / MN2FA01G11 / 911SK03111 - Not 100% sure of the function of >>> this chip by following the tracks, but it looks like it might be >>> some kind of a clock source. That is a wild guess though! >> >> This is USB thingie. >> >> So, the offending part is JMB352. Justin, when JMB352 is doing e-SATA >> interface, it's failing IDENTIFY. sata_sil fails to recognize it and >> ahci (right? Steven) succeeds only after IDENTIFY failures and >> retries. Any ideas what's going on? When doing e-SATA, is the chip >> active or passive? ie. Does it just pass through the signals or do >> some meddling inbetween? > > > Since this is a dual-SATA device, does it have TWO eSATA ports at the back, > or just one? If the latter, then I'd expect to find a port-multiplier in the chain. Hi Mark, There is only one eSATA port on the back of the cradle. From looking at the specs of the JMB352[1], it seems that it has the capability to have 3 SATA channels. Two are used for the cradle bays, the third for the uplink to the PC. The PDF states: "The SATA controller could be configured as host or device. The 3-port SATA II 3.0G controllers further supports the eSATA to dual SATA communication." [1] - http://www.jmicron.com/PDF/JMB352/JMB352.pdf -- Steven Haigh Email: netwiz@crc.id.au Web: http://www.crc.id.au Phone: (03) 9001 6090 - 0412 935 897 Fax: (03) 8338 0299