[U-Boot-Users] Linux kernel crash when using initrd and OF tree

[Demke Torsten-atd012]

> Please try 
> setenv initrd_high 0
But this is only a workaround for the issue?
The problem is not the initrd, but the OF tree, which is located 
just below the initrd in memory. If the initrd is now within the 
first CFG_BOOTMAPSZ limit, then the OF tree is as well and the
issue disappears...all I want is that the OF tree is within the 
limit, I dont care where the initrd is. (BTW what happens if the 
initrd image is bigger then the CFG_BOOTMAPSZ limit?)

Regards,
Torsten
> 
> > 
> > Hi,
> > 
> > I want to use an initrd on a MPC85xx processor with 512MB 
> RAM. U-boot 
> > uses CONFIG_OF_FLAT_TREE to provide the bootargs to the kernel.
> > I found out, that the Linux kernel crashes at the first 
> > access to the OF tree in memory. It seems that it's because 
> > the OF tree is located just below the initrd in memory, but 
> > the Linux kernel maps only the first 16MByte at startup.
> > (When no initrd is used the OF tree is located differently - 
> > the kernel starts without problems.) Is there a reason for 
> > this different mapping scheme? 
> > Did I missed something? Shall we patch u-boot or the kernel?
> > 
> > Thanks for your help.
> > 
> > Torsten
> > 
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