Pogoplug v2 (pink) / Jtag / OpenOCD / Buspirate

[Niii]

Hi,
I'm coming on this forum for get help for connected a buspirate to a pogoplug pink, and for a start, recognized cpu .

So the story.
I have bought a pogoplug V2 for install another OS.
After some tests, at boot I got some message error about bad blocks on nand.

I decided to launch the command "nand scrub" (really clean NAND erasing bad blocks (UNSAFE)).
On next reboot, no uboot on rs232, no led activity, ok my pogo is bricked .

Now i try to connect a Buspirate to jtag for reflash uboot, but OpenOCD do not want to recognize feroceon cpu.

Buspirate version : (openocd won't work with 5.x firmware)
HiZ>i
Bus Pirate v3
Firmware v4.5 Bootloader v4.4
DEVID:0x0447 REVID:0x3043 (B5)
http://dangerousprototypes.com

Jtag Pogoplug pink :
Power connector
-----------
GND
TDI
SRST
TDO
CLK
TMS
RES
3.3
-----------
Rs232 connector

Wiring :
BP - JTAG
3.3v - 3.3v
VPU - VTref(3v3)
GND - GND
MOSI - TDI
MISO - TDO
CLK - TCK
CS - TMS

Buspirate.cfg :
interface buspirate
buspirate_port /dev/ttyUSB0
buspirate_speed fast ;# or normal
buspirate_vreg 0
buspirate_mode open-drain
buspirate_pullup 1
reset_config srst_only

I power on my Buspirate and launch command : openocd -f sheevaplug.cfg

Here output :
Open On-Chip Debugger 0.5.0-dev-00873-g289cece-dirty (2011-05-09-22:24)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.berlios.de/doc/doxygen/bugs.html
Warn : Adapter driver 'buspirate' did not declare which transports it allows; assuming legacy JTAG-only
Info : only one transport option; autoselect 'jtag'
srst_only separate srst_gates_jtag srst_open_drain
trst_and_srst separate srst_gates_jtag trst_push_pull srst_open_drain
adapter_nsrst_delay: 200
jtag_ntrst_delay: 200
500 kHz
adapter_nsrst_delay: 500
dcc downloads are enabled
Warn : use 'feroceon.cpu' as target identifier, not '0'
sheevaplug_load_uboot
Info : Buspirate switched to FAST mode
Info : Buspirate Interface ready!
Info : Want to set speed to 500kHz, but not implemented yet
Error: Translation from jtag_speed to khz not implemented
Info : adapter-specific clock speed value 500
Info : JTAG tap: feroceon.cpu tap/device found: 0x000000ff (mfg: 0x07f, part: 0x0000, ver: 0x0)
Warn : JTAG tap: feroceon.cpu UNEXPECTED: 0x000000ff (mfg: 0x07f, part: 0x0000, ver: 0x0)
Error: JTAG tap: feroceon.cpu expected 1 of 1: 0x20a023d3 (mfg: 0x1e9, part: 0x0a02, ver: 0x2)
Error: Trying to use configured scan chain anyway...
Error: feroceon.cpu: IR capture error; saw 0x0f not 0x01
Warn : Bypassing JTAG setup events due to errors
Info : Embedded ICE version 0
Info : feroceon.cpu: hardware has 1 breakpoint/watchpoint unit
Error: unexpected Feroceon EICE version signature

Other question, i need to power off my Buspirate berfore relaunch openOCD, if not, OpenOCD fail with this, its normal ? :
Error: Error reading data
Error: Buspirate error. Is is binary//OpenOCD support enabled?

If anyone have a solution, or see a mistake.
Regards.

[Niii]

I made a mistake.
Here is the good wiring :
BP - JTAG
AUX - RES
GND - GND
MOSI - TDI
MISO - TDO
CLK - TCK
CS - TMS

OpenOCD boot are ok :
$this->bbcode_second_pass_code('', 'Open On-Chip Debugger 0.5.0-dev-00873-g289cece-dirty (2011-05-09-22:24)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.berlios.de/doc/doxygen/bugs.html
Warn : Adapter driver 'buspirate' did not declare which transports it allows; assuming legacy JTAG-only
Info : only one transport option; autoselect 'jtag'
srst_only separate srst_gates_jtag srst_open_drain
trst_and_srst separate srst_gates_jtag trst_push_pull srst_open_drain
adapter_nsrst_delay: 200
jtag_ntrst_delay: 200
500 kHz
adapter_nsrst_delay: 500
dcc downloads are enabled
Warn : use 'feroceon.cpu' as target identifier, not '0'
sheevaplug_load_uboot
Info : Buspirate Interface ready!
Info : Want to set speed to 500kHz, but not implemented yet
Error: Translation from jtag_speed to khz not implemented
Info : adapter-specific clock speed value 500
Info : JTAG tap: feroceon.cpu tap/device found: 0x20a023d3 (mfg: 0x1e9, part: 0x0a02, ver: 0x2)
Info : Embedded ICE version 0
Info : feroceon.cpu: hardware has 1 breakpoint/watchpoint unit
Info : accepting 'telnet' connection from 4444')

Halt / init / nand / erase are ok too :
$this->bbcode_second_pass_code('', '>halt
target state: halted
target halted in ARM state due to debug-request, current mode: Supervisor
cpsr: 0x000000d3 pc: 0xffff0000
MMU: disabled, D-Cache: disabled, I-Cache: disabled
>init
>sheevaplug_init
> nand probe 0
NAND flash device 'NAND 128MiB 3.3V 8-bit (Hynix)' found
> nand erase 0 0x0 0xa0000
erased blocks 0 to 5 on NAND flash device #0 'NAND 128MiB 3.3V 8-bit'')

But write on nand or load_image fail :
With arm7_9 dcc_downloads enable :
$this->bbcode_second_pass_code('', '> load_image uboot.kwb 0x800000
Halt timed out, wake up GDB.
timed out while waiting for target halted
in procedure 'load_image'')
or
$this->bbcode_second_pass_code('', '> load_image uboot.kwb
DCC write failed, expected end address 0x00080000 got 0x7f7f7f7f
in procedure 'load_image'')

Without :
$this->bbcode_second_pass_code('', '> load_image uboot.kwb 0x800000
timeout waiting for SYSCOMP & DBGACK, last DBG_STATUS: 0
in procedure 'load_image'')

If anyone have a track.
Regards.

[Niii]

Ok after some reset / load_image / write / nand erase, got no error.

Just this error when I want write uboot :
$this->bbcode_second_pass_code('', '> nand write 0 uboot.kwb 0 oob_softecc_kw
memory write caused data abort (address: 0x10000014, size: 0x4, count: 0x10)
Unable to write OOB data to NAND device

> mdw 0x10000014
memory read caused data abort (address: 0x10000014, size: 0x4, count: 0x1)')
Make change in sheevaplug.cfg
Change "-work-area-phys 0x10000000 \" to "-work-area-phys 0x100000 \"

Relaunch OpenOCD, and now :
$this->bbcode_second_pass_code('', '> nand erase 0 0x0 0xa0000
erased blocks 0 to 5 on NAND flash device #0 'NAND 128MiB 3.3V 8-bit'
> nand write 0 uboot.j.kwb 0 oob_softecc_kw
>reset
')
In rs232 screen :
$this->bbcode_second_pass_code('', 'U-Boot 2010.09 (Oct 23 2010 - 11:51:16)
Marvell-PinkPogo by Jeff Doozan

SoC: Kirkwood 88F6281_A0
DRAM: 256 MiB
NAND: 128 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>> ')

Time to take a break.

[davygravy]

Yes, JTAG is great when it works, a source of consternation when it does less than work...

I used OpenOCD 0.5.0, built against libftdi, on Ubuntu Lucid 10.04, with my ARM-USB-TINY.

This article was indispensable for me : http://plume.redox.ws/article13/docksta ... -buspirate

My script for the PogoPlugV2 Board is attached... pheeewwww.... I had to press the tiny reset button on the board when I experienced the Halt timed out, wake up GDB. message. Subsequent dockstar_init invocations then worked a treat...

$this->bbcode_second_pass_code('', '> reset
reset
JTAG tap: feroceon.cpu tap/device found: 0x20a023d3 (mfg: 0x1e9, part: 0x0a02, ver: 0x2)
> dockstar_init
dockstar_init
Halt timed out, wake up GDB.
target state: halted
target halted in ARM state due to debug-request, current mode: Supervisor
cpsr: 0x000000d3 pc: 0xffff0000
MMU: disabled, D-Cache: disabled, I-Cache: disabled
> dockstar_init
dockstar_init
> nand probe 0
nand probe 0
NAND flash device 'NAND 128MiB 3.3V 8-bit (Hynix)' found
> nand erase 0 0x0 0xa0000
nand erase 0 0x0 0xa0000
erased blocks 0 to 5 on NAND flash device #0 'NAND 128MiB 3.3V 8-bit'
> nand write 0 uboot.mtd0.pinkpogo.original.kwb 0 oob_softecc_kw
nand write 0 uboot.mtd0.pinkpogo.original.kwb 0 oob_softecc_kw
')

$this->bbcode_second_pass_code('', 'U-Boot 1.1.4 (Sep 28 2009 - 11:55:23) Cloud Engines v2.0 (3.4.16)

U-Boot code: 00600000 -> 0067FFF0 BSS: -> 00690D60

Soc: 88F6281 A0 (DDR2)
CPU running @ 0Mhz L2 running @ 0Mhz
SysClock = 0Mhz , TClock = 200Mhz

')
Dang, it took several power-downs to get it to come back up on serial.

dockstar.cfg.tar.gz

the board config I used to recover my PogoPlug V2 Pink E02

(1.69 KiB) Downloaded 1018 times

[sambul13]

$this->bbcode_second_pass_quote('davygravy', 'J')TAG is great when it works, a source of consternation when it does less than work.