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

[Allan Fislor]

On Thu, Aug 7, 2014 at 7:49 AM, Allan Fislor <allan.fislor at gmail.com> wrote:
> 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


I got a NAND from ST-Micro, with 2k page-size. It works perfectly! And
it accepts a lot of OR timings combination.

I think is something related specifically to Micron....