[Yaffs] A newbie to yaffs

[Nick Bane]

> Hi everybody,
> 
>  
> 
>     I am a new biehere.I had sent a mail sevral days ago, but with no 
> reply. Maybe I made some mistakes when I was sending the mail, so I made 
> a copy of it. 
> 
>     I am using linux－2.4.18－rmk4 on my ARM board and I used cramfs 
> with a nor flash before. I
> tried to put YAFFS to the kernal tree and use it with a new added nand 
> flash on my system. After
> compiling, I can see yaffs under the /proc:
> 
> ~ # ls /proc
> 1            47           apmc             fs           misc         swaps
> 10           48           bus              interrupts   modules      sys
> 16           5            cmdline          iomem        mounts       sysvipc
> 2            51           cpu              ioports      mtd          tty
> 3            6            cpuinfo          kcore        net          uptime
> 32           7            devices          kmsg         partitions   version
> 4            8            driver           ksyms        scsi         yaffs
> 44           9            execdomains      loadavg      self
> 45           92           fb               locks        slabinfo
> 46           MX2_DMA      filesystems      meminfo      stat
> 
> ~ # cat /proc/yaffs
> YAFFS built:May 20 2006 13:51:43
> $Id: yaffs_fs.c,v 1.39 2005/04/24 08:54:36 charles Exp $
> $Id: yaffs_guts.c,v 1.41 2005/04/24 08:54:36 charles Exp $
> 
>  
> 
> 
>     but I faild to mount the /dev/mtdblock/3 as a yaffs partition:
> ~ # mount -t yaffs /dev/mtdblock/3 /mnt
> yaffs: Attempting MTD mount on 31.3, dev is 7939 "1f:03"
> yaffs: MTD device does not support required functions
> mount: Mounting /dev/mtdblock/3 on /mnt failed: Invalid argument
> 
> 
>     PS: There are 5 partitions in my board. The last two is for NAND Flash :
> Using static partition definition
> Creating 3 MTD partitions on "Motorola Mx2 Flash":
> 0x00000000-0x00100000 : "bootloader"
> 0x00100000-0x00300000 : "kernel"
> 0x00300000-0x01000000 : "file system"
> nand_maf_id:0xec nand_dev_id:0x76
> NAND device: Manufacture ID: 0xec, Chip ID: 0x76 (Samsung unknown 64Mb)
> Creating 2 MTD partitions on "Samsung unknown 64Mb":
> 0x00000000-0x00400000 : "yaffs"
> 0x00400000-0x04000000 : "user
> 
>  
> 
>     Can anybody help me to resolve this problem?
> 
>  
Are you using 512 byte or 2k byte oob nand?
The complaint is that the support functions are missing. This probably
means you are trying to mount yaffs2 on a 512 byte nand or vice versa.


Nick Bane

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