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Date: Sat, 11 Oct 2008 14:29:44 +0100
From: "Bruce M. Simpson" <bms@incunabulum.net>
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To: "Bruce M. Simpson" <bms@incunabulum.net>
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Cc: Stanislav Sedov <stas@FreeBSD.org>, freebsd-embedded@freebsd.org
Subject: Re: Problems with NSLU2 and U-Boot
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Bruce M. Simpson wrote:
> I just tried booting kernel.bin on the NSLU2, as a raw memory image, 
> via tftp, and got exactly the same result.
> I repeated it with U-Boot. It appears as though it relocates the 
> embedded ELF image to the correct address during load and execution, 
> but I can't be sure because I don't have any OCD capability just now.

I grabbed the patches for the IXO dude's USB JTAG design here:
    http://www.ixo.de/info/usb_jtag/

FWIW they apply fine to the snapshot I rolled of OpenOCD, and it appears 
to talk to the USB Blaster clone OK. Now whilst this appears to detect 
the chain, I don't have TRST lines pulled out on the board -- I only 
have VCC, GND, TMS, TCK, TDO and TDI pulled out with teflon coated wire 
(the *really* thin stuff).

So I can't halt the xScale core and capture registers, etc. It seems 
there is a TRSTn line but I'll have to warm up the iron another time...