[U-Boot] AT91SAM9M10 Custom Board U-boot reboot after Wrong Image Format

From: marcio at netopen.com.br <marcio@netopen.com.br>
To: u-boot@lists.denx.de
Subject: [U-Boot] AT91SAM9M10 Custom Board U-boot reboot after Wrong Image Format
Date: Sun, 17 Mar 2013 06:24:02 -0700 (PDT)	[thread overview]
Message-ID: <2cdadf107dc5e7a0a90a8c7838230b43@netopen.com.br> (raw)
In-Reply-To: <51452E4E.5000704@gmail.com>

Hi Bo 

Thanks a lot for your help. 

Best regards 

MArcio 

On
Sat, 16 Mar 2013 19:46:06 -0700 (PDT), Bo Shen [via U-Boot] wrote: 

>
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,
[hidden email] 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) 
> ---
> 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 
> 
>
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