Re: [PATCH] Revert "ARM: Use armlinux_bootparams address for DTB"
shc_work at mail.ru
Thu Aug 8 03:17:28 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".
> > Did you actually stumbled over this problem? Normally the dtb is
> > allocated using malloc. The malloc region normally shouldn't overlap
> > with the kernels text region unless you are really tight of memory.
> > Was this on a clps711x?
> I described it here:
Seems this issue can be resolved by decrease MALLOC_SIZE.
0xc0380000 - 0xc077ffff (size 0x00400000) malloc space
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