From: Arnd Bergmann <arnd@arndb.de>
To: Daniel Tang <dt.tangr@gmail.com>
Subject: Re: [RFC PATCHv4 1/6] arm: TI-Nspire platform code
Date: Mon, 27 May 2013 08:56:19 +0200
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Cc: linux-arm-kernel@lists.infradead.org,
        "linux@arm.linux.org.uk ARM Linux" <linux@arm.linux.org.uk>,
        Linus Walleij <linus.walleij@linaro.org>,
        "fabian@ritter-vogt.de Vogt" <fabian@ritter-vogt.de>,
        Lionel Debroux <lionel_debroux@yahoo.fr>, linux-kernel@vger.kernel.org
References: <1369480087-24786-1-git-send-email-dt.tangr@gmail.com> <201305262246.12803.arnd@arndb.de> <3ED6FFF2-89E2-4426-8DDC-10B4E6C79F26@gmail.com>
In-Reply-To: <3ED6FFF2-89E2-4426-8DDC-10B4E6C79F26@gmail.com>
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On Monday 27 May 2013, Daniel Tang wrote:
> 
> On 27/05/2013, at 6:46 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> > 
> > 
> >> +    {
> >> +            .virtual        =  NSPIRE_PWR_VIRT_BASE,
> >> +            .pfn            = __phys_to_pfn(NSPIRE_PWR_PHYS_BASE),
> >> +            .length         = SZ_4K,
> >> +            .type           = MT_DEVICE
> >> +    }
> >> +};
> > 
> > And I think this one can be replaced with a call to of_iomap:
> 
> Does of_iomap work that early in the boot process?

Not from map_io, but soon after. What is the fist place you
really need it?

	Arnd
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