The datasheet and ARM subsystem user guide refer the PLLs as PLL1 and PLL2.  In 
any case, I think you would need to:

* Execute code from internal memory
* Put the DDR into self-refresh
* Turn off / bypass DDR PLL

Brad

________________________________________
From: [email protected] 
[mailto:[email protected]] On Behalf Of 
Azam Ansari
Sent: Friday, July 24, 2009 4:56 AM
To: [email protected]; Steve Chen
Subject: PLL1 bypass on DM355

Hi Steve,

I was able to put PLL0 in bypass mode on DM355.

But I am unable to put PLL1 in bypass mode since PLL1 supplies clock to DDR 
memory.

Can you please tell me how do I make DDR memory to use the internal clock 
instead of PLL1 clock?
Is it possible to put PLL1 in bypass mode?

Thanks,
azam.
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