From: David Woodhouse <dwmw2@infradead.org>
To: Nicolas Pitre <nico@cam.org>
Cc: Wolfgang Denk <wd@denx.de>, Paul Nash <paulnash@wildseed.com>,
"Linux-MTD (E-mail)" <linux-mtd@lists.infradead.org>
Subject: Re: Intel sez: Synchronous Flash and XIP is the future -- thoughts?
Date: Mon, 16 Dec 2002 17:38:49 +0000 [thread overview]
Message-ID: <3806.1040060329@passion.cambridge.redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0212161215550.25780-100000@xanadu.home>
nico@cam.org said:
> On ARM this has no value since the kernel takes up at most 1 or 2
> page table entries (1MB section descriptors that is).
But you could still start up quickly from flash without having to memcpy
the entire kernel into RAM first, then once you're running copy the kernel
text into RAM and alter the page tables so you're running from the RAM copy
instead of the flash.
This gives you the fast startup of XIP without the runtime pain of XIP. But
it's probably overkill.
--
dwmw2
next prev parent reply other threads:[~2002-12-16 17:08 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-16 2:51 Intel sez: Synchronous Flash and XIP is the future -- thoughts? Paul Nash
2002-12-16 9:07 ` David Woodhouse
2002-12-16 9:27 ` Wolfgang Denk
2002-12-16 9:38 ` David Woodhouse
2002-12-16 9:56 ` Wolfgang Denk
2002-12-16 11:45 ` David Woodhouse
2002-12-16 17:21 ` Nicolas Pitre
2002-12-16 17:38 ` David Woodhouse [this message]
2002-12-16 18:06 ` Nicolas Pitre
2002-12-16 17:43 ` Wolfgang Denk
2002-12-16 18:07 ` Nicolas Pitre
2002-12-16 21:02 ` Charles Manning
2002-12-16 21:21 ` Russ Dill
2002-12-16 23:18 ` Charles Manning
2002-12-16 11:04 ` Michal Schulz
2002-12-16 11:16 ` Wolfgang Denk
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