[U-Boot-Users] flashcp checksum problem

[U-Boot-Users] flashcp checksum problem

[sj29fr]

I have an ARM922T with u-boot 1.2.0
I created 1 image with mkimage. This image contains my kernel (zImage) and my
ramdisk.
mkimage -A arm -o linux -T multi -C none -a 0x8000 -e 0x8000 -n
"Kernel-Ramdisk-Image" -d zImage:ramdisk.gz mImage

1) Flash mImage with uboot
The kernel works nice.

2) Now I want to upgrade Flash image from Linux
I use flashcp on my MTD partition. I successfully write the image.
$ flashcp updateImage /dev/mtd1 
When I reboot I have a bad CRC error in u-boot.

I made a dump of my MTD partition with dd and I compared it to mImage.
I have seen thaht CRLF are replace by LF !
Why does u-boot remove CR ?
How can I generate a correct image for flashcp ?
Is there a special tool to generate an image for flashcp or is there another
tool than flashcp to update my board ?
How can I verify the image checksum ?

[U-Boot-Users] flashcp checksum problem

[sj29fr]

Hi all,
I tried again to check flash in u-boot, and I think that my problem come from
u-boot which need to read a checksum in a special place. 
Flashcp doesn't write any checksum, so is there a way to do it under linux ?
I use a 2.6.17.8 kernel with uboot 1.2.0 and mtd-utils 1.1.

[U-Boot-Users] flashcp checksum problem

[Wolfgang Denk]

In message <loom.20080123T120219-53@post.gmane.org> you wrote:
>
> I tried again to check flash in u-boot, and I think that my problem come from
> u-boot which need to read a checksum in a special place. 
> Flashcp doesn't write any checksum, so is there a way to do it under linux ?
> I use a 2.6.17.8 kernel with uboot 1.2.0 and mtd-utils 1.1.

flashcp is something that is *not* part of the public U-Boot code, so
please don't expect much help here on the list. Rather ask  the  guys
who provided that version of U-Boot to you.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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sessions.                                                - Robert Bly

[U-Boot-Users] flashcp checksum problem

[sj29fr]

> flashcp is something that is *not* part of the public U-Boot code, so
> please don't expect much help here on the list. Rather ask  the  guys
> who provided that version of U-Boot to you.

So is there a supported tool to upgrade from linux ?

sj29fr

[U-Boot-Users] flashcp checksum problem

[Ben Warren]

sj29fr wrote:
>> flashcp is something that is *not* part of the public U-Boot code, so
>> please don't expect much help here on the list. Rather ask  the  guys
>> who provided that version of U-Boot to you.
>>     
>
> So is there a supported tool to upgrade from linux ?
>
>   
Sure. Use mtd-utils in Linux user-space to copy your new U-boot image 
into flash. Of course, this runs the risk of 'bricking' your board if 
there's a problem with the copy or if you embed your environment 
variables in the image, but there are tons of ways to make it a little 
safer. I'm sure you'll figure something out.

regards,
Ben