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Date:   Mon, 25 Jan 2010 09:15:21 -0800
From:   David Daney <ddaney@caviumnetworks.com>
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To:     "Anoop P.A." <Anoop_P.A@pmc-sierra.com>
CC:     linux-mips@linux-mips.org
Subject: Re: 1 GB RAM with RM9000 SOC
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Anoop P.A. wrote:
> Hi list,
> 
>  
> 
> Any of you successfully used >512MB ram with MIPS SOC's.

Does Cavium Octeon count as a MIPS SOC?  If so, then yes.

I have many boards with both 2GB and 4GB.  All of them Linux just fine 
when using all available RAM.

> I have a
> requirement where I have to use 1 GB ram with RM9000 based SOC. 
> 
> I have enabled 64 Bit support and so far it is working with 512 MB of
> RAM. How ever if I increase memory beyond 512MB I am getting kernel
> panic.
> 
>  
> 
>  I am adding memory region from 0x00 add_memory_region(0 ,0x40000000 ,
> BOOT_MEM_RAM). (PMON maps RAM from 0x0 to 0x40000000)  Am I wrong here?
> 
>  
> 
> It will be great if you can give some suggestion /point me to a working
> implementation. I am using 2.6.18 kernel.
> 
>  
> 
> Thanks
> 
> Anoop
> 
> 
> 
>