[U-Boot-Users] Flash vs DataFlash vs NAND Flash

[Ulf Samuelsson]

> Matt Gessner wrote:
>> Hi, all,
>>
>> On my AT91RM9200 board, I have an Atmel DataFlash for booting off my
>> SPI, and I have a NAND flash.
>>
>> I do not, however, have any other kind of flash.
>>
>> My 128K DataFlash address is 0xc0000000, and my 128MB of RAM is at
>> 0x20000000.
>>
>> When I do
>>
>> cp.b 20200000 c0000000 2c60
>>
>> Copy to DataFlash... done
>>
>> it works just fine.
>>
>> When I do
>>
>> cp.b c0000000 20200000 2c60
>>
>> the system crashes with a data abort, but before the crash, it reports
>>
>> Copy to Flash...
>>
>> Well, I'm quite confused how to set the various flash flags to make all
>> this work.
>>
>> If I try to set CFG_NO_FLASH, the system won't compile.
>>
>> But there is no "conventional" flash on the board... just the nand
>> (8-bit port) and dataflash (spi).
>>
>> Would someone kindly point me to a reference that explains how I can set
>> up u-boot 1.2.0 to make this work?  Or just come straight out and tell
>> me?
>>


Why not use U-Boot 1.1.5 from 
ftp://at91dist:distrib@81.80.104.162/U-Boot-1.1.5   ?
That has probably got later patches for the AT91RM9200 than 1.2.0

Best Regards
Ulf Samuelsson