From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sergey Yanovich <ynvich@gmail.com>
Date: Tue, 21 May 2013 14:42:42 +0400
Subject: [U-Boot] [PATCH] arm: pxa: PXA270 D-Cache as ram
In-Reply-To: <201305211239.52671.marex@denx.de>
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	<201305211239.52671.marex@denx.de>
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Dear Marek Vasut,

On Tue, 2013-05-21 at 12:39 +0200, Marek Vasut wrote:
> > 2.2.5.2 of Marvell PXA27x Processor Family Developers Manual says:
> > "The PXA27x processor cache configuration is identical to that of
> > the PXA255 processor."
> > 
> > As a result, it is perfectly legitimate to use PXA25X
> > 'lock_cache_for_stack' on PXA27X as well.

> Why would you need this on PXA27x ? Is SRAM not enough?

SRAM is battery-backup. It can be used as a ultra-fast persistent
storage in OS. Wasting a quater of it just to boot the system isn't the
best choice.