[U-Boot] Creating partitions on NAND flash

[Afzal Nadirshah]

Hi Wolfgang,
         Thanks for the suggestions.
         I went through some of the documents. I found that the partitions and their offsets and partition names are provided in the .dts file. I hope I have understood it right.

Regards,
Afzal Nadirshah

-----Original Message-----
From: Wolfgang Denk [mailto:wd at denx.de]
Sent: Friday, March 06, 2009 5:37 PM
To: Afzal Nadirshah
Cc: u-boot at lists.denx.de
Subject: Re: [U-Boot] Creating partitions on NAND flash

Dear Afzal Nadirshah,

In message <174230991E95D743B0C91DF471EF44E8434F1C5787 at MTW02MSG02.mindtree.com> you wrote:
>
> I would like to partition the NAND flash on a canyonlands board. As per my understanding, the partitioning is done using the "add_mtd_partitions" function in the file "drivers/mtd/mtdpart.c".

Look at the "mtdparts" command.

> I also understand that the information about a partition is stored in the structure : "struct mtd_partition" .
> I could not find out where this structure is getting populated in the u-boot code.

How about trying something like "grep -lr mtd_partition *" ?

> My aim is to add more such partitions on the NAND flash on my board. Any information regarding partitioning the flash is highly appreciated.

Reading the documentation is usually pretty helpful.

I really recommend it.

See for example
http://www.denx.de/wiki/DULG/UBootCmdGroupFlash#UBootCmdFlMtdparts
and
http://www.denx.de/wiki/view/DULG/BootTimeConfigurationOfMTDPartitions


Also, you should definitely look into UBI support if you're using this
on NAND flash.

Best regards,

Wolfgang Denk

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