gpmi-nand driver and jffs2 support

Hector Palacios hector.palacios at digi.com
Fri Aug 30 12:41:58 EDT 2013


Hi Fabio,

On 08/30/2013 06:37 PM, Fabio Estevam wrote:
> Hi Hector,
>
> On Fri, Aug 30, 2013 at 1:31 PM, Hector Palacios
> <hector.palacios at digi.com> wrote:
>> Ok I merged the linux-next MTD patches.
>> This is what I get from the printk:
>>
>> [    0.841333] [ set_geometry_by_ecc_info ] 36, 28
>>
>> The partition now partially mounts (I can see a few of the folders and
>> files) but I get thousands of errors like these:
>>
>> [  118.210985] jffs2: mtd->read(0x100 bytes from 0x0) returned ECC error
>> [  118.255424] jffs2: mtd->read(0x1ff20 bytes from 0xe0) returned ECC error
>> [  118.255561] jffs2: jffs2_scan_inode_node(): CRC failed on node at
>> 0x000001ec: Read 0x00000000, calculated 0xa587e8ba
>> [  118.255602] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not
>> found at 0x00000234: 0x1cf7 instead
>
> This error is most likely because you generated a jffs2 rootfs with a
> eraseblock size that does not match the one of your NAND device.

No. I used 128k erase block that matches my NAND. I also checked that I can mount the 
jffs2 partition correctly using my v2.6.35 kernel, so the partition seems to be 
correctly written.

Best regards,
--
Hector Palacios



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