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From: Dave Littell <littelld@verizon.net>
To: linuxppc-embedded@ozlabs.org
Subject: direct access to Flash from userland
Date: Wed, 03 Sep 2008 18:35:14 -0500	[thread overview]
Message-ID: <48BF1F32.8010707@verizon.net> (raw)

Hi all,

I have a CFI Flash device which has some non-CFI commands I need to
issue from userland.  I've tried mmap() of the mtdblock device, but that
only yielded a corrupted Flash as my non-CFI command sequences were
simply written to Flash.  An attempted mmap() of the character mtd
device fails the mmap() call.

Is there a way for a userland application to issue non-CFI commands
directly to a Flash device?  (This is a 2.6.18-based kernel on a AMCC
PPC440EPx platform.)


Thanks,
Dave

             reply	other threads:[~2008-09-04  0:35 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-03 23:35 Dave Littell [this message]
  -- strict thread matches above, loose matches on Subject: below --
2008-09-04 12:22 direct access to Flash from userland Fillod Stephane
2008-09-05 15:50 ` Arnd Bergmann
2008-09-06  3:32   ` Dave Littell
2008-09-08  6:00     ` Ankur Maheshwari

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