[U-Boot] QorIQ P1020 NAND Flash 2k-Page-Size Problem

[Allan Fislor]

On Wed, Aug 6, 2014 at 3:58 PM, Scott Wood <scottwood at freescale.com> wrote:
>
> On Tue, 2014-08-05 at 16:48 -0300, Allan Fislor wrote:
> > Hi all,
> >
> > I have a custom Freescale QorIQ P1020 board, with a serial NOR Flash (eSPI
> > bus) and a NAND Flash (eLBC/FCM bus). Im booting from the NOR flash.
> >
> > The old NAND (512 bytes page size) was working perfectly, so I swapped for
> > another with 2k bytes page size.
> >
> > I changed in the config file:
> >
> >    CONFIG_SYS_NAND_OR_PRELIM: added OR_FCM_PGS option
> >
> >    CONFIG_SYS_NAND_BLOCK_SIZE: set to (128 * 1024)
> >
> >
> > But this new NAND flash does not work. If I enter the command "nand
> > erase.chip", all sectors appears with bad block.
>
> Are the timings correct for your new NAND chip?
>

My eLBC is at 25MHz, I also tried 50MHz and 100MHz.

My current OR options are: OR_FCM_PGS | OR_FCM_CSCT | OR_FCM_CST |
OR_FCM_CHT  | OR_FCM_SCY_1  | OR_FCM_TRLX  | OR_FCM_EHTR

I tried some combinations, without success.

>
> What do you see if you dump the raw NAND contents?
>

=> nand dump 0
Page 00000000 dump:
        30 30 30 30 30 30 30 30  30 20 20 20 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        (all zeros)
        00 00 00 00 00 00 00 08  00 00 00 00 00 00 00 00
        (all zeros)

OOB:
        00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00

>
> Have you seen this behavior with more than one instance of the new flash
> chip type?
>

With 2k page-size I only tested this PN: MT29F2G08ABAEAWP

And others boards with this same NAND, have the same behavior.

Cheers,

--
Allan