[U-Boot] Problem in writing jffs2 fiesystem

[U-Boot] Problem in writing jffs2 fiesystem

[navin karnam]

Hi all,

I am running u-b00t-1.6.6 on custom at91sam9263 board.
Now i am able to boot, jffs2 filesystem with linux-2.6.20 kernel.
but the procedure i am using to burn is jffs2 is :
1)boot the linux kernel with ramdisk
2)erase the flash partition using $flasheraseall -j /dev/mtd1
3)writing the image using $nandwrite -p /dev/mtd1 rootfs.jffs2

The above procedure works well for me. But when i try writing the jffs2
filesytem in uboot prompt its not booting (kernel panic).
In uboot i did this way:

1) tftp 21100000 rootfs.jffs2
2)nand write.jffs2 21100000 0x200000 0x(hex add of displayed by tftp)


What is the write  of doing this?
-
Regards,
Naveen
Application Engineer
Innovate Software Solutions Pvt Ltd.,
Bengalooru

[U-Boot] FW: Fwd: Problem in writing jffs2 fiesystem

[Pedro Luis D. L.]

On Mon, 8 Sep 2008 19:51:59 +0530 Navin wrote:

>Hi all,
>
>I am running u-b00t-1.6.6 on custom at91sam9263 board.

Are you sure it is u-boot-1.6.6? The latest u-boot in repository is
1.3.4.

>Now i am able to boot, jffs2 filesystem with linux-2.6.20 kernel.
>but the procedure i am using to burn is jffs2 is :

>1)boot the linux kernel with ramdisk

>2)erase the flash partition using $flasheraseall -j /dev/mtd1
>3)writing the image using $nandwrite -p /dev/mtd1 rootfs.jffs2
>

You should be able to flash the jffs2 file sytem from u-boot.
No need to do it from linux.

>The above procedure works well for me. But when i try writing the jffs2 filesytem in uboot prompt its not booting (kernel panic).


>In uboot i did this way:
>
>1) tftp 21100000 rootfs.jffs2
>2)nand write.jffs2 21100000 0x200000 0x(hex add of displayed by tftp)
>

Which command is "nand write.jffs2"? Maybe you're using a version which
is modified by the board supplier. 
A "normal" way to flash it would be:

cp.b 21100000 $(destiny_addr) $(filesize)

Cheers.

Pedro L.

>
>What is the write  of doing this?
>- 
>Regards,
>Naveen




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[U-Boot] FW: Fwd: Problem in writing jffs2 fiesystem

[Scott Wood]

On Mon, Sep 08, 2008 at 04:54:03PM +0200, Pedro Luis D. L. wrote:
> On Mon, 8 Sep 2008 19:51:59 +0530 Navin wrote:
> 
> >Hi all,
> >
> >I am running u-b00t-1.6.6 on custom at91sam9263 board.
> 
> Are you sure it is u-boot-1.6.6? The latest u-boot in repository is
> 1.3.4.

I'm guessing he meant 1.1.6, which is quite old (and apparently old
enough to suffer l33tsp34k bitrot).

> >Now i am able to boot, jffs2 filesystem with linux-2.6.20 kernel.

Especially since he's also using a kernel that is quite old. :-)

> >but the procedure i am using to burn is jffs2 is :
> 
> >1)boot the linux kernel with ramdisk
> 
> >2)erase the flash partition using $flasheraseall -j /dev/mtd1
> >3)writing the image using $nandwrite -p /dev/mtd1 rootfs.jffs2
> >
> 
> You should be able to flash the jffs2 file sytem from u-boot.
> No need to do it from linux.

I think that's the point, that it should work from u-boot but doesn't.

There's probably either something wrong with the u-boot NAND driver being
used, or the ECC layout doesn't match the kernel's.

> >In uboot i did this way:
> >
> >1) tftp 21100000 rootfs.jffs2
> >2)nand write.jffs2 21100000 0x200000 0x(hex add of displayed by tftp)
> >
> 
> Which command is "nand write.jffs2"?

It's a perfectly normal u-boot command.

> Maybe you're using a version which
> is modified by the board supplier. 
> A "normal" way to flash it would be:
> 
> cp.b 21100000 $(destiny_addr) $(filesize)

That's for NOR flash.  It does not work for NAND.

-Scott