[U-Boot] [PATCH 09/15] iMX28: Add GPMI NAND driver

Marek Vasut
2011-09-28T22:34:03Z

On Thursday, September 29, 2011 12:13:19 AM Scott Wood wrote:
> On 09/28/2011 05:09 PM, Marek Vasut wrote:
> > On Wednesday, September 28, 2011 11:57:49 PM Scott Wood wrote:
> >> So I think if you need something that changes the layout from normal
> >> operations, it needs to be a new mode. And it's about time to sync up
> >> U-Boot's NAND code with Linux again...
> >
> > Well aren't you the maintainer that should take care of it ? ;-)
>
> Yes, that note was me adding something to my todo list. :-)
>
> >> I'm not talking about circumventing the driver, just accessing some user
> >> OOB bytes through it.
> >
> > There are no user OOB bytes, the driver does the ECC so user has no need
> > to write any OOB.
>
> By "user OOB bytes" I meant things other than the ECC and the bad-block
> marker -- the space described by oobavail in ecclayout. This is getting
> less useful with partial-page restrictions and large ECC that fills up
> most of the OOB, though, and thus there's a trend away from making use
> of it. So if it's a pain to provide access to any spare OOB bytes, it's
> not that big of a deal.

But I don't get it, you're still talking about OOB, but the OOB and the actual
page make no difference here. They are used in the same manner. The OOB is
spread across the page.

>
> -Scott