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From: David Woodhouse <dwmw2@infradead.org>
To: franck.fleter@netbricks.com
Cc: linux-mtd@lists.infradead.org
Subject: Re: Boot from NAND flash ???
Date: Mon, 13 May 2002 10:29:36 +0100	[thread overview]
Message-ID: <16389.1021282176@redhat.com> (raw)
In-Reply-To: <3CDF6922.9A0A870F@netbricks.com>

franck.fleter@netbricks.com said:
> I read in mails archive that Linux kernel can't boot from NAND flash.
> It can  boot from NOR flash. Does Linux  kernel not able to boot  from
> NAND flash because :
>     1) a NAND flash is connected to an I/O controller and not to a BUS. 

That's the one. You cannot just put a NAND flash chip at the CPU's startup 
vector and let it boot from it. You need _something_ for the CPU to start 
with, be that SROM, a tiny NOR flash or ROM, or something else. All you 
need is a few bytes to set up your DRAM and start pulling the real 
bootloader off the NAND flash.

--
dwmw2

  reply	other threads:[~2002-05-13  9:29 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-13  7:20 Boot from NAND flash ??? franck.fleter
2002-05-13  9:29 ` David Woodhouse [this message]
2002-05-13 10:11   ` Charles Manning
2002-05-13 11:18     ` Thomas Gleixner
2002-05-14  7:37       ` Charles Manning
2002-06-16  5:58         ` Der Herr Hofrat
2002-06-16  8:18           ` Charles Manning
2002-05-13 12:05     ` David Woodhouse
2002-05-15  9:14       ` Charles Manning
2002-05-15  9:21         ` David Woodhouse
  -- strict thread matches above, loose matches on Subject: below --
2002-05-13 16:47 Vadim Khmelnitsky
2000-01-12 11:50 ` Thomas Gleixner
2002-05-20  8:17   ` Charles Manning

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