U-boot and linux command line parameters

[Hunter Cobbs]

Have you considered using a kernel and initrd?

Hunter Cobbs

On May 24, 2009, at 4:38 PM, Mirek23 <miroslaw.dach at psi.ch> wrote:

>
> Dear All,
>
> I use linux kernel 2.6.23 and u-boot 1.2.0 (on ppc405 virtex-4 )  
> for  some
> time. All works fine when the
> kernel together with initramfs is smaller than 8MB. If it is bigger  
> than the
> kernel does not boot properly.
>
> First of all I would like to know how the address for the linux  
> command line
> parameters is "transferred" from u-boot to linux for ppc405 (virtex4  
> chip)?
> (via some registers or is it  a fixed address in the memory ie. 8MB?)
> Does somebody know what should be changed, in the kernel,  in order  
> to move
> this limitation from 8MB to let say 12MB? I would be grateful for  
> any hint.
>
> Thanks in advance.
> M.
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