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From: Gregory CLEMENT <gregory.clement@free-electrons.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org,
        Thierry Reding <thierry.reding@gmail.com>,
        Bjorn Helgaas <bhelgaas@google.com>, Andrew Lunn <andrew@lunn.ch>,
        Jason Cooper <jason@lakedaemon.net>, linux-pci@vger.kernel.org,
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        Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
        Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Subject: Re: [PATCH] PCI: mvebu: Restrict build to 32-bit ARM
References: <1455802330-17565-1-git-send-email-thierry.reding@gmail.com>
	<5051836.EUN3ennYNm@wuerfel>
Date: Thu, 18 Feb 2016 15:34:30 +0100
In-Reply-To: <5051836.EUN3ennYNm@wuerfel> (Arnd Bergmann's message of "Thu, 18
	Feb 2016 15:06:23 +0100")
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Hi Arnd,
 
 On jeu., févr. 18 2016, Arnd Bergmann <arnd@arndb.de> wrote:

> On Thursday 18 February 2016 14:32:10 Thierry Reding wrote:
>> From: Thierry Reding <treding@nvidia.com>
>> 
>> This driver uses PCI glue that is only available on 32-bit ARM. This
>> used to work fine as long as ARCH_MVEBU and ARCH_DOVE were exclusively
>> 32-bit, but that's changed now, with ARCH_MVEBU also being available
>> on 64-bit ARM.
>> 
>> Signed-off-by: Thierry Reding <treding@nvidia.com>
>
> Looks fine as a temporary workaround, but I think what we really want to
> do here is to remove the dependency, as the new ARM64 platforms are going
> to need this driver anyway.

Actually the mvebu ARM64 platform we know about (Armada 3700, 7K and
8K), won't use the same controller. A7K/A8K will use a synopsis IP and
Armada 3700 a new Marvell IP.

So for me depending on ARM32 is enough.

Gregory

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com