[U-Boot-Users] [PATCH] Add support for AT91RM9200 NAND (Smartmedia) controller
fmandarino at endrelia.com
Wed Dec 6 18:50:42 CET 2006
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
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.
Frank Mandarino fmandarino(a)endrelia.com
Endrelia Technologies Inc.
Toronto, Ontario, Canada
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