[U-Boot] Porting YAFFS2 to U-boot

[Peter Barada]

I have a pile of changes to u-boot that make yaffs work w/mtdparts (I.e. "ymount /<partition>" looks through mtdparts to find start/end blocks, etc) that works in u-boot-2011.06), and want to refresh that for a current u-boot, but it's gonna take time to get it into acceptable shape for submission.

If anyone wants the raw changes to get a head start I'm happy to pass them along...

Splat-fingered from my iPhone

On Feb 2, 2012, at 5:20 PM, "Charles Manning" <manningc2 at actrix.gen.nz> wrote:

> Bud
> 
> Last time I looked, the yaffs code in u-boot is pretty old and I would 
> recommend refreshing it.
> 
> -- Charles
> 
> 
> On Friday 03 February 2012 10:40:45 Bud Miljkovic wrote:
>> I am newbie in this.  Anybody done it?
>> 
>> Any lead is appreciated.
>> 
>> Cheers,
>> Bud Miljkovic
>> 
>> -----Original Message-----
>> From: Marek Vasut [mailto:marek.vasut at gmail.com]
>> Sent: Wednesday, 1 February 2012 11:58 p.m.
>> To: Wolfgang Denk
>> Cc: u-boot at lists.denx.de; Bud Miljkovic
>> Subject: Re: [U-Boot] Can u-Boot Ran from RAM?
>> 
>>> Dear Marek Vasut,
>>> 
>>> In message <201202011111.09465.marek.vasut at gmail.com> you wrote:
>>>>> On Monday 30 January 2012 23:07:05 Bud Miljkovic wrote:
>>>>>> While getting acquainted with possible u-Boot development
>> 
>> issues, I
>> 
>>>>>> read FAQ "14.2.1.  Can U-Boot be configured such that it can be
>>>>>> started in RAM?" and was puzzled to learn that u-Boot cannot run
>>>>>> from RAM.
>>>>> 
>>>>> you misread it.  the question is for people who have loaded
>> 
>> u-boot, and
>> 
>>>>> then want to load another copy of u-boot into ram and then execute
>> 
>> that
>> 
>>>>> directly.
>>>>> 
>>>>> so the question is "can u-boot be *started in ram*" and the answer
>> 
>> is
>> 
>>>>> "no".
>>>> 
>>>> The answer is "yes if you know how to do it" ;-)
>>> 
>>> The answer is "NO".  You cannot load the _normal_ U-Boot image to RAM
>>> and start it.  You must prepare a _special_ image which omits all the
>>> initializations that are normally included.
>> 
>> You can on PXA ;-)
>> 
>>> This FAQ addresses the situation where people want to load and run
>>> their _normal_ images before burning these to flash.  And this CANNOT
>>> be done like that.
>> 
>> You're certainly right this is true for general case, but there are
>> special
>> cases where you can load u-boot from u-boot without any harm (PXA is the
>> 
>> example).
>> 
>>> Best regards,
>>> 
>>> Wolfgang Denk
>> 
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> 
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