From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: ICH8 CF timeout (regression)... Date: Fri, 03 Aug 2007 19:41:21 +0900 Message-ID: <46B30651.9030505@gmail.com> References: <6278d2220708020348k26ac2293v648442f2281eca70@mail.gmail.com> <46B20D6B.1060506@gmail.com> <6278d2220708021411q17cdc151p79922e5dab74add4@mail.gmail.com> <46B25DE1.4050105@rtr.ca> <6278d2220708030322h2c779fa3o1e2e2d9c83ff62e8@mail.gmail.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------040808040602010706050405" Return-path: Received: from rv-out-0910.google.com ([209.85.198.186]:59531 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759637AbXHCKl1 (ORCPT ); Fri, 3 Aug 2007 06:41:27 -0400 Received: by rv-out-0910.google.com with SMTP id k20so645582rvb for ; Fri, 03 Aug 2007 03:41:27 -0700 (PDT) In-Reply-To: <6278d2220708030322h2c779fa3o1e2e2d9c83ff62e8@mail.gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Daniel J Blueman Cc: Mark Lord , jgarzik@pobox.com, linux-ide@vger.kernel.org, Linux Kernel This is a multi-part message in MIME format. --------------040808040602010706050405 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Daniel J Blueman wrote: > The ICH8 south-bridge I have is the mobile variant and does come > equipped with native parallel IDE - see page 447: > http://download.intel.com/design/chipsets/datashts/31305603.pdf . I do > see 35MB/s with DMA enabled from my CF on the 1 in 15 times the > libata-kernel does work. > > I can dump off and decode the configuration registers for the timing > and bus master registers in the working and non-working libata cases, > and the legacy ATA working case and see what's different. Does the attached patch change anything? -- tejun --------------040808040602010706050405 Content-Type: text/x-patch; name="ich8-map-01b-update.patch" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="ich8-map-01b-update.patch" diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index ad07086..47a344b 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -436,7 +436,7 @@ static const struct piix_map_db ich8_map_db = { /* PM PS SM SS MAP */ { P0, P2, P1, P3 }, /* 00b (hardwired when in AHCI) */ { RV, RV, RV, RV }, - { IDE, IDE, NA, NA }, /* 10b (IDE mode) */ + { P0, P2, IDE, IDE }, /* 10b (IDE mode) */ { RV, RV, RV, RV }, }, }; --------------040808040602010706050405--