nand with pcmcia interface

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. And I did "md 0x20000000" It too hangs the u-boot. Please suggest me how to go on further.

Waiting for your responses.

Thanks & Regards
Girish

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"When Ability Ends; Faith Begins....

Girish A J ([email protected]) Associate - Systems, Ph: (80) 2361 8184-86 Ext 135
PicoPeta Simputers Pvt Ltd. Fax:(80) 2361 7568
146 5th Cross, RMV Extension, Bangalore - 560 080. URL http://www.picopeta.com
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You should ask about this on the u-boot mailing list.

josh