From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: ICH9 2 port SATA controller port map? Date: Fri, 28 Sep 2007 22:16:21 -0700 Message-ID: <46FDDFA5.8040209@gmail.com> References: <39B20DF628532344BC7A2692CB6AEE0701CC0C09@orsmsx420.amr.corp.intel.com> <46FB0273.60302@gmail.com> <39B20DF628532344BC7A2692CB6AEE0701CF2D29@orsmsx420.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0506.google.com ([64.233.162.233]:4149 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752830AbXI2FSG (ORCPT ); Sat, 29 Sep 2007 01:18:06 -0400 Received: by nz-out-0506.google.com with SMTP id s18so2172259nze for ; Fri, 28 Sep 2007 22:18:04 -0700 (PDT) In-Reply-To: <39B20DF628532344BC7A2692CB6AEE0701CF2D29@orsmsx420.amr.corp.intel.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: "Gaston, Jason D" Cc: linux-ide@vger.kernel.org Gaston, Jason D wrote: >> -----Original Message----- >> From: Tejun Heo [mailto:htejun@gmail.com] >> Sent: Wednesday, September 26, 2007 6:08 PM >> To: Gaston, Jason D >> Cc: linux-ide@vger.kernel.org >> Subject: Re: ICH9 2 port SATA controller port map? >> >> Gaston, Jason D wrote: >>> Hello, >>> >>> ICH9 has DeviceID's for 2 port, IDE mode, SATA controllers. The > current >>> port map in ata_piix is setup for the 4 port controllers. This seems > to >>> work ok, but I wonder if a new port map should be defined for the 2 > port >>> controllers, where the two ports are PM, SM? You can refer to the > ICH9 >>> Datasheet on intel.com for detail. >> Yes, please go ahead and define new entry for the controllers. Thanks. >> >> -- >> Tejun > > What is the difference between NA and RV? If the controller only has > access to 2 ports, does it matter which I set the nonexistent port > values to in the map? NA is used for unimplemented ports of a valid configuration while RV is used to mark invalid MAP value. So, NA should be mixed with P[0-3] while RV can't be mixed with any other values. -- tejun