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From: S. Egbert <s.egbert@sbcglobal.net>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Regarding memory commands
Date: Wed, 08 Feb 2006 21:48:31 -0800	[thread overview]
Message-ID: <43EAD7AF.6000404@sbcglobal.net> (raw)
In-Reply-To: <2195AF8E2250C54D8D8A726C8AE84A3331C2C8@dbde01.ent.ti.com>

Herekar, Aniruddha wrote:
> Does memory commands mm, mw, mn and tftp work only with RAM memory and
> not flash (nor or nand) memory?
> 
> If so are there any other commands other than 'cp' that can be used to
> write into flash (nor or nand) memory?
> 

Basic memory commands (mm. mw) work in any memory region that the
hardware supports.

You will have to be mindful of certain memory and interface devices
using only 16-bit or 8-bit access in a 32-bit architecture.  Otherwise,
such attempts to use 32-bit read/write will result in the most
significant short-word or byte NOT to carry valid data value.

TFTP does work writing directly into unprotected FLASH region if the
CFG_DIRECT_FLASH_TFTP is defined in your include/configs/<board>.h file.

  reply	other threads:[~2006-02-09  5:48 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-09  3:26 [U-Boot-Users] Regarding memory commands Herekar, Aniruddha
2006-02-09  5:48 ` S. Egbert [this message]
2006-02-09  9:03 ` Wolfgang Denk
  -- strict thread matches above, loose matches on Subject: below --
2006-02-09  6:20 Herekar, Aniruddha
2006-02-09  8:53 ` S. Egbert
2006-02-09  9:35 Herekar, Aniruddha
2006-02-09  9:35 Herekar, Aniruddha

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