From: "Rob Taylor" <robt@flyingpig.com>
To: "linuxppc-embedded" <linuxppc-embedded@lists.linuxppc.org>
Subject: RE: kernel executing from flash
Date: Fri, 24 Mar 2000 09:54:18 -0000 [thread overview]
Message-ID: <000501bf9576$ebd7ef20$b400a8c0@eventhorizon> (raw)
In-Reply-To: <200003232005.VAA05535@denx.local.net>
> In message
> <1314024740.953824470340.JavaMail.wwwrun@moe.freenet.de> you wrote:
> >
> > all Linux I know will be copied during startup from Harddisk,
> NFS or Flash to RAM and will be executed there.
> > Is there a possibility for smaller systems to run the
> > kernel directly from flash memory as other embedded os's do?
> Did somebody try this or is it totaly impossible?
>
> It may be possible, but usually it does not make much sense - to run
> the kernel directly from FLASH you must store an uncompressed kernel
> image there, so you need more FLASH. Given the price difference
> between FLASH and DRAM memory is often cheaper to uncompress into
> RAM, and run from RAM.
>
not to mention that DRAM is usually faster than FLASH...
Rob
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2000-03-24 9:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-03-23 15:14 kernel executing from flash christof
2000-03-23 16:33 ` Markus Sundberg
2000-03-23 20:05 ` Wolfgang Denk
2000-03-24 9:54 ` Rob Taylor [this message]
2000-03-28 10:30 ` christof
2000-03-28 11:40 ` Wolfgang Denk
[not found] <200003241749.MAA00739@misery.wavemark.com>
2000-03-27 8:54 ` Rob Taylor
2000-03-28 0:04 ` Graham Stoney
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