Re: [ECOS] RedBoot RAM version problem

[Gary Thomas <gthomas@redhat.com>]

On 27-Jul-2001 Andre Sebastien wrote:
> Hi,
> 
> I start to examine this file !! i make a little changment in the code for see th
> differents ID , build it and execute it !!!
> 
> so  MANUFACTURER ID that device return is 18 and the expected by redboot is 31
>       FLASH device ID that device return is 0 and the expected by redboot is 164
> 
> So What should i do ? bypass this test or not ?

It seems to me that the device is not responding to the inquiry - those are not
valid numbers AFAIK.

In most of the flash drivers, there is a pause after sending the "identify" command
before reading the data.  Some devices take a really long time to go into that
mode and send back the correct information.  Try increasing the pause and see
if it starts working.

> 
> Jesper Skov wrote:
> 
>> >>>>> "Andre" == Andre Sebastien <sebastien.andre@sxb.bsf.alcatel.fr> writes:
>>
>> Andre> Yes it s this flash device that i have (AT29C040A) !!!!  What
>> Andre> does it wrong ?
>>
>> Dunno. I remember we had a similar problem with one of the boards in
>> our test farm, but I never got around to investigate.
>>
>> The problem is that the device ID returned by the device when queried
>> is not what the driver expects. See flash_hwr_init in
>> devs/flash/atmel/at29cxxxx/current/include/flash_at29cxxxx.inl.
>>
>> Jesper