nandwrite problem

nandwrite problem

[Davide CASCONE]

I have a NAND device related to MTD block 5. The NAND device is correctly probing during the kernel boot phase. 
If I run the following commands

#mkdir /dev/mtdblock/5 b 31 5
#mount -t jffs2 /dev/mtdblock/5 /nand/

the JFFS2 file system is correctly mounting on the /nand/ directory.
But, if I run the following command

#./nandwrite -j /dev/mtdblock/5 filesys.jffs2_nand

in order to copy a file system image on the NAND device, the system returns the following message:

MEMGETINFO: Inappropriate ioctl for device

Any suggestions to solve the problem?

Thanks in advance,
Davide

Re: nandwrite problem

[Josh Boyer]

On 7/17/06, Davide CASCONE <davide.cascone@st.com> wrote:
>
> I have a NAND device related to MTD block 5. The NAND device is correctly probing during the kernel boot phase.
> If I run the following commands
>
> #mkdir /dev/mtdblock/5 b 31 5
> #mount -t jffs2 /dev/mtdblock/5 /nand/
>
> the JFFS2 file system is correctly mounting on the /nand/ directory.
> But, if I run the following command
>
> #./nandwrite -j /dev/mtdblock/5 filesys.jffs2_nand

nandwrite needs a character device, not a block device.  Use /dev/mtd5 instead.

josh

RE: nandwrite problem

[Raj Kumar Yadav]

Also for mtdblock/5 the character node will be mtd10  "mknod /dev/mtd10 c 90
10".

With mtd character interface every partition is accessed through pair of two
char device node.
First with  read-write permission. Second with read-only permission.

It is like
/dev/mtdblock/0   b 31 0
/dev/mtd0		c 90 0 (Read-write)
/dev/mtd1		c 90 1 (read only)

/dev/mtdblock/1   b 31 1
/dev/mtd2		c 90 2 (Read-write)
/dev/mtd3		c 90 3 (read only)

...

/dev/mtdblock/5   b 31 5
/dev/mtd10		c 90 10 (Read-write)
/dev/mtd11		c 90 11 (read only)


Raj Kumar Yadav

-----Original Message-----
From: linux-mtd-bounces@lists.infradead.org
[mailto:linux-mtd-bounces@lists.infradead.org] On Behalf Of Josh Boyer
Sent: Monday, July 17, 2006 8:35 PM
To: Davide CASCONE
Cc: linux-mtd@lists.infradead.org
Subject: Re: nandwrite problem

On 7/17/06, Davide CASCONE <davide.cascone@st.com> wrote:
>
> I have a NAND device related to MTD block 5. The NAND device is correctly
probing during the kernel boot phase.
> If I run the following commands
>
> #mkdir /dev/mtdblock/5 b 31 5
> #mount -t jffs2 /dev/mtdblock/5 /nand/
>
> the JFFS2 file system is correctly mounting on the /nand/ directory.
> But, if I run the following command
>
> #./nandwrite -j /dev/mtdblock/5 filesys.jffs2_nand

nandwrite needs a character device, not a block device.  Use /dev/mtd5
instead.

josh

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Re: nandwrite problem

[Josh Boyer]

On 7/17/06, Raj Kumar Yadav <ryadav@neomagic.com> wrote:
> Also for mtdblock/5 the character node will be mtd10  "mknod /dev/mtd10 c 90
> 10".
>
> With mtd character interface every partition is accessed through pair of two
> char device node.
> First with  read-write permission. Second with read-only permission.

Quite right.  I had forgotten that particular horrible detail.  Thanks
for correcting me.

josh

RE: nandwrite problem

[David Woodhouse]

On Mon, 2006-07-17 at 22:31 +0530, Raj Kumar Yadav wrote:
> Also for mtdblock/5 the character node will be mtd10  "mknod /dev/mtd10 c 90
> 10".
> 
> With mtd character interface every partition is accessed through pair of two
> char device node.
> First with  read-write permission. Second with read-only permission.
> 
> It is like
> /dev/mtdblock/0   b 31 0
> /dev/mtd0               c 90 0 (Read-write)
> /dev/mtd1               c 90 1 (read only)
> 
> /dev/mtdblock/1   b 31 1
> /dev/mtd2               c 90 2 (Read-write)
> /dev/mtd3               c 90 3 (read only)
> 
> ...
> 
> /dev/mtdblock/5   b 31 5
> /dev/mtd10              c 90 10 (Read-write)
> /dev/mtd11              c 90 11 (read only) 

This is incorrect. Your description of the minor numbers and the meaning
of the device is right, but you're using entirely bogus names. They
should be mtd0, mtd0ro, mtd1, mtd1r0, etc. The device node with major
90, minor 10 is supposed to be called '/dev/mtd5'. If you use MAKEDEV or
udev, or if you just bother to follow the documentation, this should be
correct.

Do not top-post.

-- 
dwmw2

nandwrite problem

[Sridhar C.R]

Hi,

I am using an 8Gbit ST Micro NAND flash. I am using the cross compiled mtd
utils (mtd-utils-05.07.23) for mips 64.
The flash eraseall is working. But when I try to write an image (jffs2 / any
other), I am getting the following error

# ./nandwrite -p /dev/mtd0 rootfs.jffs2
Writing data to block 0
pwrite: Input/output error
Data did not fit into device, due to bad blocks
: Illegal seek

The block 0 of this partition is a good block. This is verified by the boot
up info as well as the flash_eraseall utility.
Also the partition is large enough to hold the image in spite of few bad
blocks in the partition.

Can anybody have any ideas?

Thanks,
Sridhar


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nandwrite problem

[Donal Morrissey]

Hello All,
I'm having problems in using the nandwrite command for my cirius logic
EP9302 arm based processor card. I am able to load the images
correctly via redboot, but not via the nandwrite shell command.

I'm using redboot, kernel 2.6.8.1-crus2.0.8 and nandwrite v1.32.

Here is the redboot output:
---------------------------
RedBoot> fis list
Name              FLASH addr  Mem addr    Length      Entry point
RedBoot           0x60000000  0x60000000  0x00040000  0x00000000
RedBoot config    0x60FC0000  0x60FC0000  0x00001000  0x00000000
FIS directory     0x60FE0000  0x60FE0000  0x00020000  0x00000000
config1           0x60040000  0x00800000  0x00020000  0x00000000
config2           0x60060000  0x00800000  0x00020000  0x00000000
ramdisk.gz        0x60080000  0x00800000  0x00400000  0x00800000
zImage            0x60480000  0x00080000  0x00140000  0x00080000

Here are the MTD Devices
------------------------
~ # cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00040000 00020000 "RedBoot"
mtd1: 00020000 00020000 "config1"
mtd2: 00020000 00020000 "config2"
mtd3: 00400000 00020000 "ramdisk.gz"
mtd4: 00140000 00020000 "zImage"
mtd5: 00a00000 00020000 "unallocated"
mtd6: 00001000 00020000 "RedBoot config"
mtd7: 00020000 00020000 "FIS directory"

I'm trying to update the ramdisk.gz which is located in /dev/mtd3:

~ # mtd_debug info /dev/mtd3
mtd.type = MTD_NORFLASH
mtd.flags = MTD_CLEAR_BITS
mtd.size = 4194304 (4M)
mtd.erasesize = 131072 (128K)
mtd.oobblock = 0
mtd.oobsize = 0
mtd.ecctype = MTD_ECC_NONE
regions = 0

You can see that the oobblock and oobsize are 0! When I try to run the
nandwrite command I get the following:

~ # nandwrite /dev/mtd3 ramRamdisk.gz
Unknown flash (not normal NAND)

Having looked at the nandwrite command source code, this problem is
caused by the oobblock and oobsize members of the mtf info being 0!

Does anyone know why the values are incorrect or how to get around this issue?

Best Regards,
Donal

Re: nandwrite problem

[Donal Morrissey]

Hi Saravanan,
Looks like that was my problem.
Thank you for your help!
Donal

2009/4/9 saravanan chanemouganandam <saravanan_sprt@hotmail.com>:
> Hello,
>
> It seems you are using NOR type flash from mtd.type = MTD_NORFLASH and you
> are trying to use
> nandwrite to flash your image.
>
> Try using mtd-utils to flash ramdisk.gz try something like
>
> mtd -e ramdisk.gz write ramRamdisk.gz ramdisk.gz
> or
> mtd erase /dev/mtd3
> cat ramRamdisk.gz > /dev/mtd3
>
> hope this helps
>
>
>
>
>
>> Date: Thu, 9 Apr 2009 08:29:37 +0100
>> Subject: nandwrite problem
>> From: donal.morrissey@gmail.com
>> To: linux-mtd@lists.infradead.org
>>
>> Hello All,
>> I'm having problems in using the nandwrite command for my cirius logic
>> EP9302 arm based processor card. I am able to load the images
>> correctly via redboot, but not via the nandwrite shell command.
>>
>> I'm using redboot, kernel 2.6.8.1-crus2.0.8 and nandwrite v1.32.
>>
>> Here is the redboot output:
>> ---------------------------
>> RedBoot> fis list
>> Name FLASH addr Mem addr Length Entry point
>> RedBoot 0x60000000 0x60000000 0x00040000 0x00000000
>> RedBoot config 0x60FC0000 0x60FC0000 0x00001000 0x00000000
>> FIS directory 0x60FE0000 0x60FE0000 0x00020000 0x00000000
>> config1 0x60040000 0x00800000 0x00020000 0x00000000
>> config2 0x60060000 0x00800000 0x00020000 0x00000000
>> ramdisk.gz 0x60080000 0x00800000 0x00400000 0x00800000
>> zImage 0x60480000 0x00080000 0x00140000 0x00080000
>>
>> Here are the MTD Devices
>> ------------------------
>> ~ # cat /proc/mtd
>> dev: size erasesize name
>> mtd0: 00040000 00020000 "RedBoot"
>> mtd1: 00020000 00020000 "config1"
>> mtd2: 00020000 00020000 "config2"
>> mtd3: 00400000 00020000 "ramdisk.gz"
>> mtd4: 00140000 00020000 "zImage"
>> mtd5: 00a00000 00020000 "unallocated"
>> mtd6: 00001000 00020000 "RedBoot config"
>> mtd7: 00020000 00020000 "FIS directory"
>>
>> I'm trying to update the ramdisk.gz which is located in /dev/mtd3:
>>
>> ~ # mtd_debug info /dev/mtd3
>> mtd.type = MTD_NORFLASH
>> mtd.flags = MTD_CLEAR_BITS
>> mtd.size = 4194304 (4M)
>> mtd.erasesize = 131072 (128K)
>> mtd.oobblock = 0
>> mtd.oobsize = 0
>> mtd.ecctype = MTD_ECC_NONE
>> regions = 0
>>
>> You can see that the oobblock and oobsize are 0! When I try to run the
>> nandwrite command I get the following:
>>
>> ~ # nandwrite /dev/mtd3 ramRamdisk.gz
>> Unknown flash (not normal NAND)
>>
>> Having looked at the nandwrite command source code, this problem is
>> caused by the oobblock and oobsize members of the mtf info being 0!
>>
>> Does anyone know why the values are incorrect or how to get around this
>> issue?
>>
>> Best Regards,
>> Donal
>>
>> ______________________________________________________
>> Linux MTD discussion mailing list
>> http://lists.infradead.org/mailman/listinfo/linux-mtd/
>
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