could not mount a spi-flash on rootfs

[カオ ミン ヒェップ <cm-hiep-HEF513clHfp3+QwDJ9on6Q@public.gmane.org>]

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  Hi,

I am working on Lager board from Renesas, We have tested qspi driver on 
upstream-ltsi v3.10.31、

(http://ltsi.linuxfoundation.org/sites/ltsi/files/patch-3.10.31-ltsi.gz)

When mounting /dev/mtdblock2 on /mnt/, there are some messages as a below:

"EXT3-fs (mtdblock2): error: can't find ext3 filesystem on dev mtdblock2.
EXT2-fs (mtdblock2): error: can't find an ext2 filesystem on dev mtdblock2.
EXT4-fs (mtdblock2): VFS: Can't find ext4 filesystem
FAT-fs (mtdblock2): bogus number of reserved sectors
FAT-fs (mtdblock2): Can't find a valid FAT filesystem
FAT-fs (mtdblock2): bogus number of reserved sectors
FAT-fs (mtdblock2): Can't find a valid FAT filesystem
mount: you must specify the filesystem type"

I have enabled ext2,3,4 file systems when configuring the kernel.
and I saw that the qspi driver code is same with upstream version code 
that be good.
maybe the problem related to mtd (m25p80.c) (?)
I attach the logs files when making a spi-flash partition and mount it 
on rootfs.

Best regards,
Cao Minh Hiep


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root@linaro-nano:~# fdisk /dev/mtdblock2 
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0xb8711025.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): n
Partition type:
   p   primary (0 primary, 0 extended, 4 free)
   e   extended
Select (default p): 
Using default response p
Partition number (1-4, default 1): 
Using default value 1
First sector (2048-122367, default 2048): 
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-122367, default 122367): 
Using default value 122367

Command (m for help): t
Selected partition 1
Hex code (type L to list codes): 83

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 22: Invalid argument.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
root@linaro-nano:~# mkfs.ext3 /dev/mtdblock2 
mke2fs 1.42.5 (29-Jul-2012)
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
Stride=0 blocks, Stripe width=0 blocks
15296 inodes, 61184 blocks
3059 blocks (5.00%) reserved for the super user
First data block=1
Maximum filesystem blocks=62652416
8 block groups
8192 blocks per group, 8192 fragments per group
1912 inodes per group
Superblock backups stored on blocks: 
        8193, 24577, 40961, 57345

Allocating group tables: done                            
Writing inode tables: done                            

Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information:    

done

root@linaro-nano:~# 
root@linaro-nano:~# mount /dev/mtdblock2 /mnt/
EXT3-fs (mtdblock2): error: can't find ext3 filesystem on dev mtdblock2.
EXT2-fs (mtdblock2): error: can't find an ext2 filesystem on dev mtdblock2.
EXT4-fs (mtdblock2): VFS: Can't find ext4 filesystem
FAT-fs (mtdblock2): bogus number of reserved sectors
FAT-fs (mtdblock2): Can't find a valid FAT filesystem
FAT-fs (mtdblock2): bogus number of reserved sectors
FAT-fs (mtdblock2): Can't find a valid FAT filesystem
mount: you must specify the filesystem type