From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brad Campbell Subject: Re: libata dev_config call order wrong. Date: Mon, 30 Aug 2004 18:38:01 +0400 Sender: linux-ide-owner@vger.kernel.org Message-ID: <41333BC9.1050903@wasp.net.au> References: <41320DAF.2060306@wasp.net.au> <41321288.4090403@pobox.com> <413216CC.5080100@wasp.net.au> <4132198B.8000504@pobox.com> <41321F7F.7050300@pobox.com> <1093805994.28289.4.camel@localhost.localdomain> <4132EF78.9000200@wasp.net.au> <1093872174.30146.15.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from wasp.net.au ([203.190.192.17]:35011 "EHLO wasp.net.au") by vger.kernel.org with ESMTP id S268257AbUH3Oh1 (ORCPT ); Mon, 30 Aug 2004 10:37:27 -0400 In-Reply-To: <1093872174.30146.15.camel@localhost.localdomain> List-Id: linux-ide@vger.kernel.org To: Alan Cox Cc: Jeff Garzik , linux-ide@vger.kernel.org, Linux Kernel Mailing List Alan Cox wrote: > On Llu, 2004-08-30 at 10:12, Brad Campbell wrote: > >>Given that the SATA->PATA bridge boards support 80 pin detection, then bit 13 of word 93 must be >>high on any drive that supports lba48, and given the *current* sata spec states that word 93 must be >>zero, we should be able to use this detection method. > > > Word 53 is the important one and essentially tells you what else to > believe later on in the configuration. Ok, well acording to my copy of the ATA-6 spec, word 53 mentions nothing about word 93. From everything I have read in ATA-5 -> ATA-7 (Draft) word 93 appears to be pretty fixed. It certainly works with my limited test set (all WD unfortunately)