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List:       linux-omap
Subject:    Re: Tracking N770 breakage
From:       Andrew de Quincey <adq () lidskialf ! net>
Date:       2009-05-22 18:33:59
Message-ID: 20090522193359.17514ptwyl8kdbls () lidskialf ! net
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Quoting Andrew de Quincey <adq_dvb@lidskialf.net>:

> Quoting Tony Lindgren <tony@atomide.com>:
>
>> * Andrew de Quincey <adq_dvb@lidskialf.net> [090519 22:15]:
>>> Quoting Tony Lindgren <tony@atomide.com>:
>>>
>>>> * Andrew de Quincey <adq_dvb@lidskialf.net> [090516 19:17]:
>>>>> Argh, my N770 seems to have just died; it has been behaving slightly
>>>>> oddly and now it simply won't turn on (black screen and no sign of life
>>>>> whatsoever).
>>>>>
>>>>> It is well out of warranty and frankly I don't see myself buying another
>>>>> one, so this effectively ends my hacking on it :(
>>>>
>>>> Bummer :(
>>>>
>>>> After a quick try, CONFIG_OMAP_RESET_CLOCKS was the first stopper, then
>>>> it could not mount the MMC root.
>>>
>>> Ahh excellent, that was why I posted my progress, in case it rang a bell
>>> with anyone! I think the touchpad driver may be broken as well BTW.
>>>
>>>> I think there was a patch posted for the omap1 MMC by Ladislav few months
>>>> ago that probably fixes it.
>>>
>>> Cool - I hope I may be back in the running soon (I was rather annoyed
>>> when I posted that message!); I've ordered a new battery in case its
>>> just that. A kind person has also offered me one thats broken in a
>>> different way that I can probably cobble together with the remains of
>>> mine if its something more critical that has died.
>>
>> Good to hear, let's hope it just needs a new battery.
>>
>> See also the n8x0 thread. If we get drivers/cbus to mainline, we
>> pretty much have everything we need for 770 in mainline too.
>>
>> It would be nice to get the drivers/mmc/host/omap.c patch integrated
>> for 2.6.30 to make omap1 MMC work again. Ladislav, any news on that?
>
> OK! My friend has lent me his N770 in the meantime so I can get  
> going again. It seems the board is fried on mine as my battery works  
> perfectly fine in his. gah!
>
> Anyway, I have just tried disabling RESET_CLOCKS, but it still  
> doesn't work for me with the very latest linux-omap-2.6.
>
> With my HWA patch applied, at least the screen goes black, but I  
> don't see any console output, and the thing doesn't appear as a USB  
> gadget (I'm mounting NFS as root over USB with cdc_ether).
>
> I wish the thing had an LED I could turn on! Hmm, I wonder if I  
> could turn off the backlight easily..

Actually, after playing a bit, I discovered I'm getting a boot penguin  
logo ok, but no actual textual console output; weird!

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