[U-Boot] skip relocation

[Reinhard Meyer <u-boot@emk-elektronik.de>]

Dear Marcel,
> On Monday, January 03, 2011 07:57:33 pm Marcel wrote:
>
> Great, I've got it to boot.
>
> I have no idea why it suddenly works, but I guess after reviewing my config and
> changing a couple of things one of those things must have been the cause.
>
> CONFIG_SYS_TEXT_BASE is 0x7f300000 which is the final jump address as mentioned
> in AT91bootstrap.

If this address is near end of SDRAM, and since u-boot relocates itself to end of SDRAM,
you might risk an overlap, depending on malloc and stack sizes.

I'd advise to have AT91Bootstrap load u-boot to the very SDRAM start (so I did for
our board).

>
> I guess the issue is solved now and I'll certainly check out at91bootstrap to
> create my own low level init in u-boot. It eventually saves time at production
> level I think and I generally like to keep things as simple as possible
> anyways. Since all initialisation code is in at91bootstrap I guess I can just
> move it from there to u-boot (sounds easy, but I guess there's some more to
> it).

It might not be THAT easy. Also be aware that at91bootstrap is not GPL-ed...

Reinhard