Re: [Gumstix-users] Help unbricking a Verdex Pro XM4 using OpenOCD

[Ash C. <ash...@gm...>]

Does this help at all?
http://wiki.gumstix.org/index.php?title=Verdex_JTAG

It looks like some of the instructions you followed are the same but
some are a little different.
-Ash

On Tue, Feb 21, 2012 at 1:21 AM, Jon Harrison <jha...@he...> wrote:
> Hi all,
>
> Having bricked my Verdex Pro XM4 I bought an Olimex ARM-USB-OCD-H adapter
> and a JTAGpro board and spent yesterday trying to recover it.
>
> I've been using OpenOCD 0.5.0 and with help from a couple of people have put
> a config file together for the Verdex Pro board and having overcome various
> jtag interface timing issues have got the software to talk to the board
> reliably (this in itself was a bit of a challenge).
>
> My initial idea was simply to flash u-boot-verdex-400-r1604.bin .
>
> 'flash probe 0' reports device 0x0089 0x8818
> 'flash info 0' reports a whole list of information about the flash banks and
> timing data for the chip
>
> So far so good it seems so I try
>
> 'flash write_image erase unlock u-boot-verdex-400-r1604.bin 0 bin'
>
> At this point I get the message 'execution of flash algorythm failed' ...
> 'error writing to flash at address 0x00000000 at offset 0x00000000'
>
> So next I try
>
> 'flash protect 0 0 last off' clears protection for 130 sectors
> 'flash erase_sector 0 0 130'
> 'flash erase_check 0' erased sectors 0 through 130 on flash bank 0 in
> 111.281250s
>
> Then
>
> 'flash write_bank 0 u-boot-verdex-400-r1604.bin 0'
>
> Then I get the message 'execution of flash algorythm failed' ... 'error
> writing to flash at address 0x00000000 at offset 0x00000000' again
>
> After a bit of digging on the internet it seems that there might be a bug in
> the cfi driver in OpenOCD which prevents it from programming this type of
> Intel Strata flash device (ICM025-400). So I abandon that approach !
>
> The PXA270 has 256K at 0x5c000000 I believe so next I try
>
> 'load_image u-boot-verdex-400-r1604.bin 0x5c000000 bin'
>
> This reports 161440 bytes written at address 0x5c000000 in 0.406250s
>
> I connect a serial cable to the connector on the JTAGpro board and run
> hyperterminal on my PC 115200 8-N-1
>
> After typing 'resume 0x5c000000' I expect to see the u-boot text appear in
> the hyperterminal window but instead I get nothing and OpenOCD reports
> 'failed to receiving data from debug handler after 1000 attempts'
>
> I'd assumed that the serial port connected on the JTAGpro is the correct one
> for the standard u-boot image to output to ?
>
> I'm afraid I don't know enough about OpenOCD or the PXA270 to figure out
> what is wrong.
>
> I did setup my verdex pro script to try and configure some of the PXA270
> registers to setup the SDRAM controller (register values copied from someone
> else) and tried to load the image to 0xa0000000 but that didn't seem to work
> either so for the moment I'm not doing any chip configuration. Is there
> anything I need to configure to load to the internal ram at 0x5c000000 ?
>
> I've come to a bit of a halt at the moment and I'm not sure how to proceed.
> Does anyone out there have any suggestions ?
>
> Best Regards,
>
> Jon
>
>
>
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