From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bo Shen <voice.shen@gmail.com>
Date: Sun, 17 Mar 2013 10:45:34 +0800
Subject: [U-Boot] AT91SAM9M10 Custom Board U-boot reboot after Wrong
 Image Format
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Hi Marcio,
   This is not u-boot related, I think you should post this issue to 
Linux kernel mailing list.

On 03/16/2013 10:58 PM, marcio at netopen.com.br wrote:

[Snip]

> NAND device: Manufacturer ID: 0x2c, Chip
> ID: 0xba (Micron NAND 256MiB 1,8V 16-bi
> t)
> Scanning device for bad
> blocks
> Bad eraseblock 40 at 0x000000500000
> Bad eraseblock 41 at
> 0x000000520000
> Bad eraseblock 800 at 0x000006400000
> Bad eraseblock 801
> at 0x000006420000
> Creating 3 MTD partitions on
> "atmel_nand":
> 0x000000000000-0x000000500000 :
> "Bootstrap"
> 0x000000500000-0x000006400000 :
> "system"
> 0x000006400000-0x000010000000 : "userdata"
> UBI: attaching mtd1
> to ubi0
> UBI: physical eraseblock size: 131072 bytes (128 KiB)
> UBI:
> logical eraseblock size: 129024 bytes
> UBI: smallest flash I/O unit:
> 2048
> UBI: sub-page size: 512
> UBI: VID header offset: 512 (aligned
> 512)
> UBI: data offset: 2048

I check the NAND flash spec and find you may use wrong
parameters for generating UBIFS image.

--->8---
Page size x16: 1056 words (1024 + 32 words)
---<8---

and no sub-page.

So, I think mini I/O unit should be 1024 x 4 = 4096 Bytes

> uncorrectable error :
> uncorrectable error
> :
> uncorrectable error :
> uncorrectable error :
> UBI error: ubi_io_read:
> error -74 (ECC error) while reading 64 bytes from PEB 2:
> 0, read 64
> bytes

This is ECC error, I think you should also update
the driver for atmel_nand.c (mainly ECC layout)

Best Regards,
Bo Shen