linux-kernel - Re: [PATCH v2] of/address: Add of_iomap

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Message-ID: <CACxGe6uNK5KdXH2YFMyx1A+qcRGF-XHjZhhRZmk2KEq7hJo-og@mail.gmail.com>
Date:	Thu, 4 Aug 2011 17:58:42 +0100
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Scott Wood <scottwood@...escale.com>
Cc:	David Brown <davidb@...eaurora.org>,
	devicetree-discuss@...ts.ozlabs.org, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org, David Miller <davem@...emloft.net>
Subject: Re: [PATCH v2] of/address: Add of_iomap_nocache

On Thu, Aug 4, 2011 at 5:56 PM, Scott Wood <scottwood@...escale.com> wrote:
>> +#ifndef SPARC
>> +extern void __iomem *of_iomap_nocache(struct device_node *device, int
>> index);
>> +#else
>> +static inline void __iomem *of_iomap_nocache(struct device_node *device,
>> +               int index)
>> +{
>> +       return of_iomap(device, index);
>> +}
>> +#endif
>
> Why is sparc special?  It looks like it defines ioremap_nocache() as
> ioremap() just like powerpc and some others, so shouldn't the normal
> of_iomap_nocache just work?

No, the implementation is completely different.  SPARC preparses all
the reg properties.  Everyone else does not.

g.
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