De-bricking Avila Gateworks with a JTAG programmer

["Marcin M. Jessa" <lists%yazzy.org@localhost>]

Hi guys.

I managed to wipe out entire NAND playing with my Avila Gateworks 2348-4 
board [1].
If I understand it correctly I would need a JTAG programmer to load and 
store RedBoot loader in the NAND again.
The thing is I never used a JTAG before; I know little about them and I 
am not sure what options I have.
Googling I found I could probably use a JTAG device from gateworks wich 
costs 100$.
But I like playing with different hardware and I'd rather get a JTAG 
which I could reuse with other boards.
The Avila board has a 14-pin JTAG port.
Would it be possible to use a JTAG device like [2] - [6] and reflash the 
NAND on my board?
The TJTAG software [7] claims to work with [2] and support the Xscale 
ARM CPU of my board.
But I really have no clue about JTAGs and would very appreciate any help...

Thanks in advance.
Marcin.


[1]: http://www.gateworks.com/products/avila/gw2348-4.php
[2]: 
http://www.diygadget.com/universal-jtag-adapter-for-routers-modem-fta-and-more.html
[3]: 
http://www.diygadget.com/wiggler-buffered-all-in-one-jtag-programmer-version-2.html
[4]: 
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280462473763&ssPageName=STRK:MEWAX:IT#ht_5426wt_1165 
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280462473763&ssPageName=STRK:MEWAX:IT#ht_5426wt_1165>
[5]: 
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=140392169466&ssPageName=STRK:MEWAX:IT#ht_500wt_1182 
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=140392169466&ssPageName=STRK:MEWAX:IT#ht_500wt_1182>
[6]: 
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320511635894&ssPageName=STRK:MEWAX:IT#ht_761wt_939 
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320511635894&ssPageName=STRK:MEWAX:IT#ht_761wt_939>
[7]: http://www.tiaowiki.com/w/TJTAG_User_Manual