[U-Boot] Support for NANDs greater than/equal to 4 GB

Paulraj, Sandeep s-paulraj at ti.com
Tue Aug 11 17:17:24 CEST 2009


Scott,
Please see inline

> -----Original Message-----
> From: Scott Wood [mailto:scottwood at freescale.com]
> Sent: Tuesday, August 11, 2009 11:10 AM
> To: Paulraj, Sandeep
> Cc: u-boot at lists.denx.de
> Subject: Re: Support for NANDs greater than/equal to 4 GB
> 
> On Tue, Aug 11, 2009 at 09:02:44AM -0500, Paulraj, Sandeep wrote:
> > There was a patch some time which added the 64 bit support in the MTD
> subsystem. I am referring to the patch below
> >
> > http://git.infradead.org/mtd-
> 2.6.git/blobdiff/8a4c2495b142fe612b291a810d9e695f269c26db..69423d99fc182a8
> 1f3c5db3eb5c140acc6fc64be:/drivers/mtd/nand/nand_base.c
> 
> Was it submitted to U-Boot?  If it was, I missed it.
[Sandeep] Please tell me the U-boot policy of picking features from the kernel.
I submitted 2 NAND/MTD patches yesterday which were accepted by Andrew Morton. Since I am in the signed-off-by, I sent the patches to U-boot as well.

But the above support in question is not my patch

> 
> > This feature still is not part of U-Boot. Is it going to be added?
> 
> If someone submits a patch, yes.  Otherwise it'll get picked up the next
> time I sync with Linux.
[Sandeep] Can I do it? That's my question.
BTW I have tried it myself, it does not seem to be a trivial feature addition. Changes will also be required in the files in the /common folder which relates to NAND.

That brings me to my final point are the patches I sent yesterday
[PATCH 1/2] NAND: ADD page Parameter to all read_page/read_page_raw API's
[PATCH 2/2] MTD:NAND: ADD new ECC mode NAND_ECC_HW_OOB_FIRST

Going to be accepted by you?

> 
> -Scott

Thanks,
Sandeep


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