From: Arnd Bergmann <arnd@arndb.de>
To: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Subject: Re: [RFC PATCH V3 1/4] pci: APM X-Gene PCIe controller driver
Date: Tue, 4 Feb 2014 20:22:57 +0100
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Cc: Tanmay Inamdar <tinamdar@apm.com>, Bjorn Helgaas <bhelgaas@google.com>,
        Grant Likely <grant.likely@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Rob Landley <rob@landley.net>,
        "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
        linux-kernel@vger.kernel.org, patches <patches@apm.com>,
        Jon Masters <jcm@redhat.com>, Liviu Dudau <Liviu.Dudau@arm.com>
References: <1390599168-13150-1-git-send-email-tinamdar@apm.com> <4985267.LnsktRmabM@wuerfel> <20140203221559.GG2519@obsidianresearch.com>
In-Reply-To: <20140203221559.GG2519@obsidianresearch.com>
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On Monday 03 February 2014, Jason Gunthorpe wrote:
> On Mon, Feb 03, 2014 at 09:12:32PM +0100, Arnd Bergmann wrote:
> 
> > Are you sure that is true for the root bridge as well? I don't
> > remember the details, but I though that for the host bridge,
> > we don't actually look at the BARs at all.
> 
> That is right, but this isn't a host bridge device, it is a PCI-PCI
> bridge with root complex registers. The root complex bridge is not the
> same as the host bridge.
> 
> Unfortunately the implementation is non-conforming. :(

Ok, I see. I was probably asking the wrong question then earlier
when I tried to find out what this is.

	Arnd
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