From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754081Ab3I1NLE (ORCPT ); Sat, 28 Sep 2013 09:11:04 -0400 Received: from mail-qa0-f48.google.com ([209.85.216.48]:38632 "EHLO mail-qa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753880Ab3I1NLD (ORCPT ); Sat, 28 Sep 2013 09:11:03 -0400 Date: Sat, 28 Sep 2013 09:10:59 -0400 From: Tejun Heo To: xiangliang yu Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/1] AHCI: disabled FBS prior to issuing software reset Message-ID: <20130928131059.GA3945@htj.dyndns.org> References: <1380366816-16221-1-git-send-email-yxlraid@gmail.com> <20130928114950.GA2620@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Sat, Sep 28, 2013 at 09:04:15PM +0800, xiangliang yu wrote: > hi, Tejun > i had tested the patch with Marvell 88se9235. And driver can find disk > if FBS disabled, or can't find disk. So it can't find the disk if FBS stays enabled? Can you please attach the boot log before & after? > Please see chapter 9.3.9 and 9.3.8 of AHCI spec. Thanks. Given how crappy and outdated PMP hardware are in general, I'm very unwilling to make changes just because the spec says so, so please stop repeating the spec and provide data. Thanks. -- tejun