[U-Boot] Is it possible to use 2GB or DDR on MPC834x?
Scott Wood
scottwood at freescale.com
Tue Dec 30 17:45:16 CET 2008
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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