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Change the replacement stratege of cache

Note: This was originally posted on 6th August 2010 at http://forums.arm.com

Hi,all.
For the design of system, I want to change the repalcement stratege of cache from random replacement to predictable replacement. So I need to change the bit[14] in control register(c1) of cp15 from 0 to 1. But the property of this bit is secure modify only. Could tell me how could I modify it? The arm system  i used is arm11 with wince6.0.
Thanks.
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