DM6446:How to reserve RAM specific Area

2009-11-16 Thread rohan tabish
Hello everyone 
we have made our own custom board i want to reserve a fixed RAM area to be used 
by other processor

One
way to do that is to boot the kernel with mem= value and
then use the remaining space of the RAM by allocating it using the
modules.But in this fashion we will always load the module at the end.

I want to know is there any other way to reserve the RAM area anywhere we want.

Regard's
Rohan Tabish


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Re: DM6446:How to reserve RAM specific Area

2009-11-16 Thread Steve Chen
On Mon, 2009-11-16 at 05:37 -0800, rohan tabish wrote:
 Hello everyone 
 
 we have made our own custom board i want to reserve a fixed RAM area
 to be used by other processor
 
 One way to do that is to boot the kernel with mem= value and
 then use the remaining space of the RAM by allocating it using the
 modules.But in this fashion we will always load the module at the end.
 
 I want to know is there any other way to reserve the RAM area anywhere
 we want.
 
 Regard's
 Rohan Tabish

I remember reading a similar question in ARM mailing list.  Don't quite
remember the solution.  You may want to do a search.  IIRC, the posting
is about reserving the 2nd half of the RAM.

Regards,

Steve


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Re: DM6446:How to reserve RAM specific Area

2009-11-16 Thread Steve Chen
On Mon, 2009-11-16 at 05:58 -0800, rohan tabish wrote:
 Thanks i know how to reserve a particular RAM area at end but i want
 to know how to reserve anywhere in between from a particular address
 to a particular address.
 Can you please tell which mailing list you are talking about
 
 Regard's
 RT
 
 

Check out this link.

http://www.spinics.net/lists/arm-kernel/msg73544.html

Probably need to modify the attached patch for DaVinci.  I hope it is
helpful.

Regards,

Steve


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