From: Arnd Bergmann <arnd@arndb.de>
To: "Russell King - ARM Linux" <linux@arm.linux.org.uk>
Subject: Re: [PATCH V3 3/4] ARM: Xilinx: base header files and assembly macros
Date: Thu, 17 Feb 2011 16:18:44 +0100
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Cc: John Linn <John.Linn@xilinx.com>, Jamie Iles <jamie@jamieiles.com>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        catalin.marinas@arm.com, glikely@secretlab.ca
References: <1297872716-13353-1-git-send-email-john.linn@xilinx.com> <201102171541.12261.arnd@arndb.de> <20110217151223.GJ24627@n2100.arm.linux.org.uk>
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On Thursday 17 February 2011, Russell King - ARM Linux wrote:
> > Actually, for correctness you should use the regular readl/writel, not
> > the __raw_ versions, which can result in reordered or partial accesses
> > on the bus.
> 
> Not in the decompressor.  readl/writel are unsupported there - the
> decompressor doesn't have the L2 cache support code and so the barriers
> necessary for readl/writel cause link errors.

Ah right, of course. Sorry for the confusion.

	Arnd
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