[PATCH] PCI: imx6: Fix link_up detection

[Shawn Guo]

On Fri, Feb 14, 2014 at 07:41:53AM +0100, Sascha Hauer wrote:
> On Thu, Feb 13, 2014 at 11:29:46AM -0700, Troy Kisky wrote:
> > On 2/12/2014 12:36 AM, Marek Vasut wrote:
> > >On Wednesday, February 12, 2014 at 08:27:55 AM, Sascha Hauer wrote:
> > >
> > >+CC Troy Kisky, since I think he submitted something similar some time ago
> > >already.
> > >
> > >Otherwise I agree this happens.
> > >
> > Sorry, I haven't submitted this yet, but was planning to today. Here's
> > what would have been sent.
> > 
> > From 32c560d33fe2c3945d69f3396689f0abb76f7e1f Mon Sep 17 00:00:00 2001
> > From: Marek Vasut <marex at denx.de>
> > Date: Sat, 25 Jan 2014 14:22:48 -0700
> > Subject: [PATCH 1/1] pci-imx6.c: wait for retraining
> > 
> > This patch handles the case where the PCIe link is up and running, yet drops
> > into the LTSSM training mode. The link spends short time in the LTSSM training
> > mode, but the current code can misinterpret it as the link being stalled.
> > Waiting for the LTSSM training to complete fixes the issue.
> > 
> > Signed-off-by: Marek Vasut <marex at denx.de>
> > Tested-by: Troy Kisky <troy.kisky at boundarydevices.com>
> 
> Thanks, that works.
> 
> Tested-by: Sascha Hauer <s.hauer at pengutronix.de>

Acked-by: Shawn Guo <shawn.guo at linaro.org>