JTAG restore of DockStar - Bus Pirate, CA-42 cable, & openOCD

I'm stuck at the uBoot prompt - there is no countdown to interrupt boot so it always ends up frozen.

I'm following RedoX's guide at http://plume.redox.ws/article13/dockstar-debricking-jtag-with-buspirate as well as firestorm's wiring suggestions at http://www.yourwarrantyisvoid.com/2010/09/08/dead-dockstar-resurrected-with-jtag/

I am using Ubuntu 10.10. I installed OpenOCD from the software center and had some mild tweaks to the dockstar.cfg file to accommodate the different version.

Hardware includes a SparkFun Bus Pirate with the 6.0RC1 firmware, a CA-42 cable off of eBay, and a 2.5-3.5" IDE hard drive adapter from geeks.com

I can halt, init, load, and resume fine, and I get the following from the serial terminal:

U-Boot 2010.09 (Oct 23 2010 - 11:49:22)
Marvell-Dockstar/Pogoplug by Jeff Doozan

SoC:   Kirkwood 88F6281_A0
DRAM:  128 MiB
NAND:  256 MiB
*** Warning - bad CRC or NAND, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   egiga0
88E1116 Initialized on egiga0
Hit any key to stop autoboot:  0 
Marvell>>

There is no countdown, and no echo. No matter how fast I switch windows I'm stuck at the Marvell>> prompt. I've also tried the original uBoot file with the same symptoms. I've swapped out CA-42 cables and jumpers and checked the pin assignments with a multimeter.

If it matters, I got into this mess by inadvertently overwriting 0x000000 a few weeks ago...

I recalled doing a nand erase as well but cannot recall the exact memory address. Is uboot environment empty?

dpffan Wrote:
-------------------------------------------------------
> I recalled doing a nand erase as well but cannot
> recall the exact memory address. Is uboot
> environment empty?

Might have used ecc's command: http://archlinuxarm.org/forum/viewtopic.php?f=18&t=195&start=130#p5606