[U-Boot] CRAMFS byte oder question

[U-Boot] CRAMFS byte oder question

[hendrik]

Hi All

The MPC8548 board i inherited used to boot a CRAMFS that was made by 
mkcramfs in ELDK4.1 using the "-r" option to reverse endian-ness of 
filesystem I have switched over ti ELDK4.2 and noted that there is no 
longer a "-r" for mkcramfs. I compile linux 2.6.27 using ppc_85xx cross 
compiler and powerpc architecture.   Mu cramfs boot fails when U-Boot 
checks the magic no for the cramfs. In my dubuging eforts i came across 
the following while U-Boot checks the magic no:

 cramfs magic= 0x453dcd28 != CRAMFS32 = 0x28cd3d45       

The value read by uboot is a byte swoped version of what it exspects.

how to I go about correcting my cramfs image?

thanks Hendik

[U-Boot] CRAMFS byte oder question

[Wolfgang Denk]

Dear hendrik,

In message <498C5AF5.1010401@gmail.com> you wrote:
> 
> The MPC8548 board i inherited used to boot a CRAMFS that was made by 
> mkcramfs in ELDK4.1 using the "-r" option to reverse endian-ness of 
> filesystem I have switched over ti ELDK4.2 and noted that there is no 
> longer a "-r" for mkcramfs. I compile linux 2.6.27 using ppc_85xx cross 
> compiler and powerpc architecture.   Mu cramfs boot fails when U-Boot 
> checks the magic no for the cramfs. In my dubuging eforts i came across 
> the following while U-Boot checks the magic no:
> 
>  cramfs magic= 0x453dcd28 != CRAMFS32 = 0x28cd3d45       
> 
> The value read by uboot is a byte swoped version of what it exspects.
> 
> how to I go about correcting my cramfs image?

Use the old mkcramfs from ELDK 4.1 with "-r"; the missing "-r" option
is a bug that will be fixed in the next release.

Best regards,

Wolfgang Denk

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