From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net ([212.18.0.10]:42708 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751276AbaHKRX7 (ORCPT ); Mon, 11 Aug 2014 13:23:59 -0400 From: Marek Vasut To: Fabio Estevam Subject: Re: [PATCH] PCI: imx6: fix occasional link failure Date: Mon, 11 Aug 2014 19:15:46 +0200 Cc: Tim Harvey , Lucas Stach , Shawn Guo , Bjorn Helgaas , "linux-pci@vger.kernel.org" References: <1407479800-6730-1-git-send-email-tharvey@gateworks.com> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Message-Id: <201408111915.46321.marex@denx.de> Sender: linux-pci-owner@vger.kernel.org List-ID: On Friday, August 08, 2014 at 05:59:23 PM, Fabio Estevam wrote: > On Fri, Aug 8, 2014 at 3:36 AM, Tim Harvey wrote: > > According to the IMX6 reference manuals, REF_SSP_EN (Reference clock > > enable for SS function) must remain deasserted until the reference clock > > is running at the appropriate frequency. > > > > Without this patch we find a high link failure rate (>5%) on certain > > IMX6 boards at various temperatures. > > > > Signed-off-by: Tim Harvey > > Thanks, Tim. > > Marek, > > Does this fix the PCI linkup failures you reported earlier? I currently don't have the board available, so I will moan later if this is still broken. Please go ahead and apply, the patch looks good to me: Acked-by: Marek Vasut Best regards, Marek Vasut