From: Mark Brown <broonie@kernel.org>
To: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-spi@vger.kernel.org
Subject: Re: [PATCH] spi: fsl-spi: use of_iomap() to map parameter ram on CPM1
Date: Tue, 3 Mar 2015 18:44:03 +0000 [thread overview]
Message-ID: <20150303184403.GE21293@sirena.org.uk> (raw)
In-Reply-To: <20150226161142.D08681A2360@localhost.localdomain>
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On Thu, Feb 26, 2015 at 05:11:42PM +0100, Christophe Leroy wrote:
> On CPM2, the SPI parameter RAM is dynamically allocated in the dualport RAM
> whereas in CPM1, it is statically allocated to a default address with
> capability to relocate it somewhere else via the use of CPM micropatch.
> The address of the parameter RAM is given by the boot loader and expected
> to be mapped via of_iomap()
Why are we using of_iomap() rather than a generic I/O mapping function
here?
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next prev parent reply other threads:[~2015-03-03 18:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-26 16:11 Christophe Leroy
2015-03-03 18:44 ` Mark Brown [this message]
2015-03-04 8:00 ` leroy christophe
2015-03-06 11:44 ` Mark Brown
2015-03-12 6:52 ` leroy christophe
2015-03-18 12:03 ` Mark Brown
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