From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH 2/2] ahci_xgene: Implement the workaround to support PMP enumeration and discovery for APM X-Gene SoC AHCI SATA Host Controller driver. Date: Mon, 5 Jan 2015 08:30:05 -0500 Message-ID: <20150105133005.GB15833@htj.dyndns.org> References: <1420453305-15986-1-git-send-email-stripathi@apm.com> <1420453305-15986-3-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: <1420453305-15986-3-git-send-email-stripathi@apm.com> Sender: linux-scsi-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, mlangsdo@redhat.com, jcm@redhat.com, patches@apm.com List-Id: devicetree@vger.kernel.org On Mon, Jan 05, 2015 at 03:51:45PM +0530, Suman Tripathi wrote: > Due to H/W errata, the controller is unable to save the PMP > field fetched from command header before sending the H2D FIS. > When the device returns the PMP port field in the D2H FIS, there is > a mismatch and results in command completion failure. The workaround > is to write the pmp value to PxFBS.DEV field before issuing any command > to PMP. > > Signed-off-by: Suman Tripathi Applied 1-2 to libata/for-3.20. Thanks. -- tejun