linux-kernel - Re: [PATCH v2 13/31] arm64: Device specific operations

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Message-ID: <20120914172944.GB2927@arm.com>
Date:	Fri, 14 Sep 2012 18:29:45 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Olof Johansson <olof@...om.net>
Cc:	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Will Deacon <Will.Deacon@....com>
Subject: Re: [PATCH v2 13/31] arm64: Device specific operations

(revisiting unanswered emails :))

On Wed, Aug 15, 2012 at 01:33:55AM +0100, Olof Johansson wrote:
> On Tue, Aug 14, 2012 at 06:52:14PM +0100, Catalin Marinas wrote:
> > +/*
> > + *  I/O port access primitives.
> > + */
> > +#define IO_SPACE_LIMIT		0xffff
> > +
> > +/*
> > + * We currently don't have any platform with PCI support, so just leave this
> > + * defined to 0 until needed.
> > + */
> > +#define PCI_IOBASE		((void __iomem *)0)
> 
> You could just leave out the PCI / I/O code alltogether instead.

I would leave this in as some of the first platforms to appear will have
PCIe. At some point we'll add a fixed address where the PCI_IOBASE is
mapped.

-- 
Catalin
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