[U-Boot] [RFC/PATCH] jffs2/mtdparts: Fix problem with usage from JFFS2 and MTDPARTS together

[Stefan Roese <sr@denx.de>]

Hi Wolfgang,

On Sunday 17 May 2009 15:54:28 Wolfgang Denk wrote:
> My tests are not succesful wither. I tested on TQM8548; when booting
> Linux I see this:
>
> ...
> NAND device: Manufacturer ID: 0x2c, Chip ID: 0xdc (Micron NAND 512MiB
> 3,3V 8-bit)
> Scanning device for bad blocks
> Bad eraseblock 628 at 0x000004e80000
> Bad eraseblock 995 at 0x000007c60000
> Bad eraseblock 2051 at 0x000010060000
> Bad eraseblock 3608 at 0x00001c300000
> Bad eraseblock 3992 at 0x00001f300000

<snip>

> => fsinfo
> ### filesystem type is JFFS2
> Scanning JFFS2 FS:   read_nand_cached: error reading nand off 0xabfe00 size
> 8192 bytes read_nand_cached: error reading nand off 0xadfe00 size 8192
> bytes
> read_nand_cached: error reading nand off 0xac0000 size 8192 bytes
> read_nand_cached: error reading nand off 0xaffe00 size 8192 bytes

<snip>

> The addresses where the read errors occur don't seem to be related to
> the bad blocks reported by Linux.

No. What does a "normal" "nand read" return when reading this complete 
partition into RAM? On PPC4xx it returned -117 here. I fixed it with the 
already posted patches for the 4xx NDFC ECC byte ordering. Perhaps the TQM8548 
has similar incompatibility issues with the Linux kernel here too?

Best regards,
Stefan

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