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Author Topic: Latest Uboot?  (Read 2343 times)
littlebigman
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« on: March 22, 2013, 05:58:32 AM »

Hello,

I'm reading Martin Michlmayr's "Upgrading SheevaPlug's U-Boot" to upgrade my SheevaPlug from Ubuntu to Debian, and apparently, this requires first upgrading Uboot from its old, Marvell version.

The article includes this link to Uboot:

Code:
http://people.debian.org/~tbm/u-boot/2011.12-3/sheevaplug/u-boot.kwb

Before I go ahead, is there a more recent Uboot for the SheevaPlug?

Thank you.
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odoll
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« Reply #1 on: March 22, 2013, 07:27:56 AM »

As to http://www.plugcomputer.org/plugforum/index.php?topic=6170 I think 2011.12-3 is the last working DENX version.

Though I myself haven't found time to test it, yet, you might give the version at https://doukki.net/plugs/sheevaplug/testing/ a try?!?
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littlebigman
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« Reply #2 on: March 22, 2013, 04:11:02 PM »

Thank you. I'll stick to something that is known to work flawlessly :-)
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trampjuice
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« Reply #3 on: March 23, 2013, 01:33:57 PM »

FYI: I just tried to install this following Martins advice and have now bricked my Sheevaplug.
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odoll
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« Reply #4 on: March 26, 2013, 04:28:04 AM »

same too me - bricked my test/spare SheevaPlug with the testing version. So my advice: don't give it an additional try ;-)

Luckily my JTAG access is working on W8 now, so I can't try to unbrick (following bigbear59's tutorial http://www.plugcomputer.org/plugforum/index.php?topic=3680
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odoll
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« Reply #5 on: March 26, 2013, 01:05:42 PM »

And UNbricked again.

In a nutshell:

I followed the instractions here: https://newit.co.uk/forum/index.php?topic=2835

To do that I fired up my Win8, started an Ubuntu in VirtualBox, connected the SheevaPlug's Mini-USB-JTAG to my PC and mapped the USB devices into the VM.

I had to use "sudo screen /dev/ttyUSB0 115200" to connect to the USB device.

As I wanted to reinstall the u-boot version http://people.debian.org/~tbm/u-boot/2011.12-3/sheevaplug/u-boot.kwb I used http://people.debian.org/~tbm/u-boot/2011.12-3/sheevaplug/uboot.elf instead of http://www.downloadsnewit.co.uk/u-boot/recovery/sheevaplug/denx/u-boot.elf

With the result that I could start an u-boot on the Plug, but it didn't recognized any commands (even not "help").

So I switched to NewIT's suggestion about DENX u-boot.elf version and restarted.

Now the plug came up with a 'proper' u-boot. However I downloaded the DENX u-boot.kw version from ~tbm's site and put it onto a pen drive and attached it to the plug.

Then I followed Michael's u-boot USB upgrade instruction at http://www.cyrius.com/debian/kirkwood/sheevaplug/uboot-upgrade.html and reset the plug. It came up properly with the environment variables still set to the values before I bricked it.

Booting the plug again it loads it's Debian from SD as before - puh.
« Last Edit: March 26, 2013, 01:09:12 PM by odoll » Logged

trampjuice
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« Reply #6 on: March 28, 2013, 02:27:39 PM »

OH - thanks a whole LOT for that - been having some real problems with my sheevaplug and u-BOOT
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