[PATCH] Revert "ARM: Use armlinux_bootparams address for DTB"

Maxime Ripard maxime.ripard at free-electrons.com
Wed Aug 7 07:37:40 EDT 2013


On Wed, Aug 07, 2013 at 01:55:42PM +0400, Alexander Shiyan wrote:
> > This patch placed the flattened devicetree to armlinux_bootparams.
> > armlinux_bootparams normally is at SDRAM_START + 0x100. The kernels
> > initial page tables are normally at SDRAM_START + 0x4000, so the
> > flattened devicetree gets overwritten once it exceeds 0x3f00 bytes
> > which is quite common.
> > 
> > Revert this patch for now once a better solution can be found
> 
> In such a case, tree may be placed immediately after the kernel?
> It can also serve as an automatic option "ARM_APPENDED_DTB".

That won't work either, since the DTB will be overwritten by the kernel
decompressor.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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