atmel_nand pmecc on 8k page

[Bo Shen]

Hi Raphaël,

On 06/12/2014 08:28 PM, Raphaël Poggi wrote:
> Hi,
>
> I'm working on a series of patches, to support 8k nand page in
> atmel_nand driver.
>
> Currently, I can detect the nand and handle an oob size of 448. But i
> have a problem with the pmecc, when barebox tried to perform pmecc
> operation, I get the following message:
>
> PMECC: Timeout to calculate error location.
>
> Example of log:
>
> nand: NAND device: Manufacturer ID: 0x2c, Chip ID: 0x68 (Micron
> MT29F32G08ABAAAWP), 4096MiB, page size: 8192, OOB size: 448
> atmel_nand atmel_nand0: Initialize PMECC params, cap: 8, sector: 1024
> atmel_nand atmel_nand0: PMECC: Timeout to calculate error location.
> atmel_nand atmel_nand0: PMECC: Timeout to calculate error location.
> atmel_nand atmel_nand0: PMECC: Timeout to calculate error location.
> atmel_nand atmel_nand0: PMECC: Timeout to calculate error location.
> Bad block table not found for chip 0
> atmel_nand atmel_nand0: PMECC: Timeout to calculate error location.
> atmel_nand atmel_nand0: PMECC: Timeout to calculate error location.
> atmel_nand atmel_nand0: PMECC: Timeout to calculate error location.
> atmel_nand atmel_nand0: PMECC: Timeout to calculate error location.
> Bad block table not found for chip 0
> Scanning device for bad blocks
> Bad eraseblock 90 at 0x000005a00000
> Bad eraseblock 91 at 0x000005b00000
> atmel_nand atmel_nand0: PMECC: Timeout to get ECC value.
> nand_bbt: error while writing bad block table -110
>
>
> I don't know/find why barebox get a timeout...
>
> Someone have an idea ?

Which board are you test this?
Can you try to apply two patches from matteo.fortini at gmail.com on 
2014-06-06 with name
[PATCH 1/2] sama5d3x: fix HSMC MODE register offset and add TIMINGS
[PATCH 2/2] sama5d3x: HSMC NAND initialize TIMINGS and import values

> Best regards,
> Raphaël

Best Regards,
Bo Shen