[U-Boot-Users] Using at91 with a different parallel flash, request for help
romank at randrlabs.com
Mon Jun 12 21:07:29 CEST 2006
Marco Cavallini wrote:
> Roman Kolesnikov ha scritto:
>> Hello everyone,
>> I found the difference (with the help of Koan) in the command list
>> and cycles for the newer Atmel chip. I have a new driver now to
>> access the flash, and it works ok. However, I still have problem with
>> UBoot1.1.4. When I load UBoot originally into flash and run,
>> everything works well. However, when I restart the uboot from flash
>> again, I think uboot overwrites something in the environment
>> variables. My environment variables become corrupt. For instance the
>> very first sign is invalid input, output, and debug settigns on the
>> second start up.
>> When I print the environment variables, I get about 8K of garbage
>> data. I wonder what could be causing my corruption. It only occurs in
>> the environment variables.
> Hi Roman,
> Please show us your include/configs/at91rm9200dk.h
I think that my problem is in the driver. Here is why ->
I saved a linux kernel into flash from RAM.
I ran the kernel from RAM, it worked.
I reset and copied a kernel from flash iinto RAM.
I executed again, kernel did not work.
I think that the driver I wrote has problems.
I am working on it right now,
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