No subject


Tue Jul 29 02:03:00 CEST 2008


for MPC83xx. Is it correct?

Best regards,
Valeriy Glushkov


----- Original Message ----- 
From: "Scott Wood" <scottwood at freescale.com>
To: "Valeriy Glushkov" <gvv at lstec.com>
Cc: <u-boot at lists.denx.de>
Sent: 30 ??????? 2008 ?. 18:45
Subject: Re: [U-Boot] Is it possible to use 2GB or DDR on MPC834x?


> Valeriy Glushkov wrote:
>> Hi Guys!
>>
>> On my mpc8347 based board I can access 1GB of DDR with mapping 4 of 256MB 
>> ranges via IBAT\DBAT registers.
>>
>> But with the 2 GB of DDR it's impossible to map them with BATs (there are 
>> only 8 BATs in the e300 core and the rest 4 of them are already used).
>>
>> All the mpc83xx examples in the U-boot tree seem to use <=1GB of SDRAM, 
>> so they use BATs to map them.
>>
>> Any suggestions are highly appreciated.
>
> Why do you need to access all 2GB from u-boot?
>
> -Scott 



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