sequoia: The final kernel image would overwrite the device tree

Geert Uytterhoeven Geert.Uytterhoeven at sonycom.com
Mon Aug 10 17:49:01 EST 2009


On Sat, 8 Aug 2009, Wolfgang Denk wrote:
> In message <1249678991.10143.1.camel at pasglop> you wrote:
> > My experience, however, with a Canyonlands board, is that uBoot has
> > a bug that makes it always allocate the device-tree below 8M and clash
> > with the kernel when it gets too big.
> > 
> > I think Stefan fixed that recently, you may need to rebuild your uboot,
> > I'll let him tell you the details about the fix.
> 
> Right. These are the relevant commits; they went into mainline some
> time ago:
> 
> commit 27dd5f8e1062684f1ba685760409d9b2ab6691bf
> Author: Stefan Roese <sr at denx.de>
> Date:   Tue Jul 28 10:56:03 2009 +0200
> 
>     ppc4xx: amcc: Move "kernel_addr_r" etc to higher locations (> 16MB)
>     
>     This patch moves the load addresses for kernel, fdt and ramdisk to higher
>     addresses (>= 16MB). This enables booting of bigger kernel images (e.g.
>     lockdep enabled).

Ah, thanks, that explains it.

I'll make sure my kernel images get smaller again ;-)

With kind regards,

Geert Uytterhoeven
Software Architect
Techsoft Centre

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