From: Sergey Yanovich <ynvich@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: pxa: PXA270 D-Cache as ram
Date: Tue, 21 May 2013 14:42:42 +0400 [thread overview]
Message-ID: <1369132962.20319.3.camel@host5.omatika.ru> (raw)
In-Reply-To: <201305211239.52671.marex@denx.de>
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.
next prev parent reply other threads:[~2013-05-21 10:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-20 22:06 [U-Boot] [PATCH] arm: pxa: PXA270 D-Cache as ram Sergey Yanovich
2013-05-21 10:39 ` Marek Vasut
2013-05-21 10:42 ` Sergey Yanovich [this message]
2013-05-21 10:54 ` Marek Vasut
2013-05-21 11:23 ` Sergey Yanovich
2013-05-21 11:38 ` Marek Vasut
2013-05-21 11:56 ` Sergey Yanovich
2013-05-21 15:00 ` Marek Vasut
2013-05-21 16:31 ` Sergey Yanovich
2013-05-21 19:02 ` Marek Vasut
2013-05-21 19:18 ` Sergey Yanovich
2013-05-21 19:24 ` Marek Vasut
2013-05-21 19:42 ` Sergey Yanovich
2013-05-21 20:07 ` Marek Vasut
2013-05-21 20:24 ` Sergey Yanovich
2013-05-21 21:38 ` Marek Vasut
2013-05-22 13:02 ` Sergey Yanovich
2013-05-22 13:04 ` Marek Vasut
2013-05-22 13:21 ` Sergey Yanovich
2013-05-22 13:54 ` Marek Vasut
2013-05-23 17:43 ` Mike Dunn
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