Re: [microblaze-uclinux] mem kernel command

[Frank Lombardo <flombardo@xxxxxxxxxxxxx>]

> Hi 
Frank,
> Frank 
Lombardo 
wrote:
> > 
I 
am 
trying 
to 
limit 
the 
kernel 
to 
use 
only 
the 
bottom 
60M 
of 
memory 
in 
a 
system 
with 
64M.  
The 
top 
4M 
will 
be 
used 
by 
our 
custom 
logic.  
I 
am 
attempting 
to 
do 
this 
use 
the 
mem=60M 
kernel 
parameter, 
but 
the 
4M 
region 
gets 
corrupted 
during 
the 
kernel 
boot.  
Should 
this 
work?  
Is 
there 
a 
better 
way 
to 
go 
about 
this?
> 
> Please 
see 
my 
reply 
to 
Tom 
Curran 
on 
this 
same 
topic 
from 
a 
couple 
of 
> days 
ago.
> 
> Thanks,
> 
> John


Thanks for pointing that out John, I missed that discussion.  What about u-boot?  CONFIG_PRAM doesn't seem to protect the 4M region either.  Is there a way to protect this RAM through a reset?

Thanks,
Frank

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