[U-Boot-Users] u-boot hangs while accesing pcmcia socket address.

[Girish <girish@picopeta.com>]

Girish wrote:

> Girish wrote:
>
>> Hi all ,
>>    I am writing a driver for 256MB Micron Nand flash On PXA270 board 
>> through PCMCIA interface as decribed in 
>> "http://download.intel.com/design/pca/applicationsprocessors/applnots/28014402.pdf". 
>> So I am trying it out in u-boot first. I wrote a u-boot command 
>> called mynand which writes the command at 0x30000000 (socket1 of 
>> pcmcia), data at 0x20000000(socket0 of pcmcia) and address at 
>> 0x20000040(i.e Address6=ALE). But u-boot hangs whenever I try to 
>> access pcmcia socket addresses i.e. 0x20000000 or 0x30000000. Please 
>> help me in this regard.
>>  
>>
> And I did "md 0x20000000" It too hangs the u-boot. Please suggest me 
> how to go on further.
> Waiting for your responses.
>
  Hi all,
       the hang is because of RDY pin; which should be connected to 
nPWAIT of PCMCIA interface. We didnt do it before.
Now we can able to access the address 0x20000000(PCMCIA's Socket 0).
    Hope this info might help somebody who has same problem. :-)


Regards
Girish