From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boszormenyi Zoltan Subject: Re: ahci driver cannot suspend a CF card, ata_piix can Date: Mon, 22 Apr 2013 22:52:31 +0200 Message-ID: <5175A30F.2000906@pr.hu> References: <516D3CEF.6010202@pr.hu> <51715F5C.3050502@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail.pr.hu ([87.242.0.5]:58674 "EHLO mail.pr.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751210Ab3DVUwy (ORCPT ); Mon, 22 Apr 2013 16:52:54 -0400 In-Reply-To: <51715F5C.3050502@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Aaron Lu Cc: lkml , Jeff Garzik , linux-ide@vger.kernel.org Hi, 2013-04-19 17:14 keltez=E9ssel, Aaron Lu =EDrta: > On 04/16/2013 07:58 PM, Boszormenyi Zoltan wrote: >> Hi, >> >> The SATA interface can be switched between AHCI and legacy modes as = usual: >> >> 00:1f.2 SATA controller: Intel Corporation NM10/ICH7 Family SATA >> Controller [AHCI mode] (rev 02) >> >> The device attached to the SATA controller is always a CF card via a >> SiI3811 Serial ATA to Parallel ATA Device Bridge based converter boa= rd. > > Can you please attach a normal sata disk and try again with the > controller set to AHCI mode? I suspect it may be the SiI3811 bridge t= hat > caused this command. I have finally got around to testing a different beast, a Zotax ZBOX wi= th mostly the same motherboard components that the previously mentioned embedded PC had. It turned out that this embedded PC (a POS machine) doesn't have regular SATA connectors but a special one to connect only this SATA-EIDE converter card with the SiI3811 chip. Anyway, using the Zotac box, both a shiny new Samsung 840 SSD and a CF card using a different IDE bridge chip (Sunplus SATALink SPIF2= 23A) can suspend to RAM using AHCI mode. Your suspicion turned out to be correct. Best regards, Zolt=E1n B=F6sz=F6rm=E9nyi