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From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] 440EPX is not booting from 1Gb/128MB NAND flash
Date: Tue, 12 Feb 2008 07:11:16 +0100	[thread overview]
Message-ID: <200802120711.17212.sr@denx.de> (raw)
In-Reply-To: <20080212060246.2832424050@gemini.denx.de>

On Tuesday 12 February 2008, Wolfgang Denk wrote:
> > #if (CFG_NAND_PAGE_SIZE > 512)
>
> Please use an explicit test instead, i. e. for example
>
> 	#if (CFG_NAND_PAGE_SIZE == 2048)
>
> unless you are absolutley sure that all future devices (say, with 8k
> or 8k page sizes) will behave identical. Otherwise it will be a mess
> to clean up that code later.

I got my idea from the current Linux MTD NAND drivers (and U-Boot btw). Here 
the distinction between small page and large page devices is done this way:

if (mtd->writesize > 512)
	lp..
else
	sp..

That's why I still prefer my suggestion.

Best regards,
Stefan

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DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================

  reply	other threads:[~2008-02-12  6:11 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <e9eeaac20802061636t14229054yebb41fa38dc5bffe@mail.gmail.com>
2008-02-07  0:38 ` [U-Boot-Users] 440EPX is not booting from 1Gb/128MB NAND flash Nikhil Gautam
2008-02-07  5:24   ` Stefan Roese
2008-02-07 23:46     ` Nikhil Gautam
2008-02-08  4:50       ` Stefan Roese
2008-02-08 22:57         ` Nikhil Gautam
2008-02-09  5:51           ` Stefan Roese
2008-02-11 14:43           ` Nikhil Gautam
2008-02-11 16:26             ` Stefan Roese
2008-02-12  1:16               ` Nikhil Gautam
2008-02-12  5:12                 ` Stefan Roese
2008-02-12  6:02                   ` Wolfgang Denk
2008-02-12  6:11                     ` Stefan Roese [this message]
2008-02-12 22:31                       ` Wolfgang Denk
2008-02-13 23:16                         ` Nikhil Gautam
2008-02-14  5:36                           ` Stefan Roese

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