From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lin Mac Subject: Re: [PATCH v3 2/2] ahci_platform: add support for CNS3xxx SoC devices Date: Fri, 7 Jan 2011 02:14:12 +0800 Message-ID: References: <1294336393-920-1-git-send-email-mkl0301@gmail.com> <1294336393-920-3-git-send-email-mkl0301@gmail.com> <20110106180948.GX27131@trinity.fluff.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:53694 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752010Ab1AFSON convert rfc822-to-8bit (ORCPT ); Thu, 6 Jan 2011 13:14:13 -0500 Received: by mail-fx0-f46.google.com with SMTP id 20so16247409fxm.19 for ; Thu, 06 Jan 2011 10:14:12 -0800 (PST) In-Reply-To: <20110106180948.GX27131@trinity.fluff.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Ben Dooks Cc: Jeff Garzik , cbouatmailru@gmail.com, htejun@gmail.com, linux-arm-kernel@lists.infradead.org, linux-ide@vger.kernel.org 2011/1/7 Ben Dooks : > On Fri, Jan 07, 2011 at 02:04:33AM +0800, Lin Mac wrote: >> Hi Jeff, >> >> 2011/1/7 =A0: >> > From: Mac Lin >> > >> > CNS3xxx override the softreset function of ahci_platform ahci_soft= reset by >> > cns3xxx_ahci_softreset, which would retry ahci_do_softreset again = with pmp=3D0 if >> > pmp=3D15 failed, for the controller has problem receiving D2H Reg = =46IS of the >> > different PMP setting of the previous sent H2D Reg FIS. >> > >> > Following describe the isssue with original ahci_platform driver o= n >> > linux-2.6.37-rc3, arm/cns3xxx. >> > >> > If CONFIG_SATA_PMP is enabled, while not using multiplier and conn= ect the disks >> > directly to the board, the disk cannot be found due to software re= set always > >> complicated if more SoC-specific code added. >> I really prefer the original way. > > Is there a reference to the original? v2: http://www.spinics.net/lists/linux-ide/msg39766.html Best Regards, Mac Lin