From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH v9 3/3] ahci_xgene: Fix the link down in first attempt for the APM X-Gene SoC AHCI SATA host controller driver. Date: Sat, 6 Sep 2014 11:28:09 +0900 Message-ID: <20140906022809.GB21579@mtj.dyndns.org> References: <1409217682-5759-1-git-send-email-stripathi@apm.com> <1409217682-5759-4-git-send-email-stripathi@apm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1409217682-5759-4-git-send-email-stripathi@apm.com> Sender: linux-ide-owner@vger.kernel.org To: Suman Tripathi Cc: olof@lixom.net, arnd@arndb.de, linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, ddutile@redhat.com, jcm@redhat.com, patches@apm.com, Loc Ho List-Id: devicetree@vger.kernel.org On Thu, Aug 28, 2014 at 02:51:22PM +0530, Suman Tripathi wrote: > Due to HW errata the APM X-Gene AHCI SATA host controller reports link > down even if the device presence is detected. This issue is due to speed > negotiation failure. This patch implements the algorithm to retry the > COMRESET if PxSTAT register reports device presence detected but > PHY communication not established. The maximum retry attempts are 3. > > This patch also fixes the code to match the algorithm for the printing > a warning message if the disparity error still exists after link up. > > Signed-off-by: Loc Ho > Signed-off-by: Suman Tripathi Applied to libata/for-3.17-fixes. Thanks. -- tejun