From: Frank Mandarino <fmandarino@endrelia.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] [PATCH] Add support for AT91RM9200 NAND (Smartmedia) controller
Date: Wed, 06 Dec 2006 12:50:42 -0500 [thread overview]
Message-ID: <el6vtk$ais$1@sea.gmane.org> (raw)
The attached patch adds support for the AT91RM9200 NAND (Smartmedia)
controller, allowing use of the U-Boot NAND commands on AT91RM9200-based
boards which use NAND flash.
It uses four CFG parameters:
CFG_NAND_BASE - address of Smartmedia chip select (normally
0x40000000)
CFG_NAND_AT91_CLE_BIT - address bit number used to set CLE signal
CFG_NAND_AT91_ALE_BIT - address bit number used to set ALE signal
CFG_NAND_CHIP_DELAY - command delay time in microseconds
I have been using this code for almost a year with no problems on our
custom AT91RM9200 board. I believe it would be useful for others as the
popularity of NAND flash increases.
Regards,
../fam
--
Frank Mandarino fmandarino(a)endrelia.com
Endrelia Technologies Inc.
Toronto, Ontario, Canada
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reply other threads:[~2006-12-06 17:50 UTC|newest]
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