[U-Boot] Porting UBI fixes (specially fastmap's) to U-Boot

[Heiko Schocher <hs@denx.de>]

Hello Ezequiel,

Am 09.10.2015 um 06:01 schrieb Heiko Schocher:
> Hello Ezequiel,
>
> Am 08.10.2015 um 17:54 schrieb Ezequiel Garcia:
>> Heiko,
>>
>> On 8 October 2015 at 11:54, Heiko Schocher <hs@denx.de> wrote:
>> [..]
>>>
>>> Currently I have a (with warnings) compiled U-Boot with ubi/ubifs
>>> with linux 4.2 base ... now testing (or tomorrow)
>>>
>>
>> If you share a branch, I can help with some tests here.
>
> I pushed my current develop state to:
>
> http://git.denx.de/?p=u-boot/u-boot-ubi.git;a=shortlog;h=refs/heads/ubi_sync_with_linux
>
> ! Only for Testing !
>
> I tested it on the aristainetos2 board, with fastmap enabled. I was
> enable to attach the ubi partition on nand flash with the "ubi part .."
> command. If I have attached a partition and again call "ubi part ..."
> u-boot hangs currently ... more testing debugging hopefully I can do
> today. so there is some work for debugging. It would be nice, if you
> can look into this issue (and of course try ubi on your hw), thanks!
>
> And maybe you find time to get rid of the compilerwarnings ;-)
>
>> Thanks a lot for the quick work!
>
> You are welcome

I just updated the "ubi_sync_with_linux" branch on u-boot-ubi.

It seems UBI/UBIFS now work with the NAND on the aristainetos2
board, but my stomach says, there are some subtile issues ...

Still needs more testing, also not tested yet UBI on the SPI NOR on
this board.

If I "nand erase" the mtd device, and try "ubi part ..." it fails

:-(

But If I flash_eraseall under linux the device, and then make
"ubi part..." in U-Boot, commmand succeeds ...

bye,
Heiko
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