jtag clock default configuration

Hi,

I had a small problem with the Jtag Clock . I have change the jtag clock to 6M

by the command jtagconfig --setparam 1 JtagClock =6M).The clock has got configured.But the problem is if i discard the jtag usb from the pc . I have to configure the clock again and again.

Do i have any alternate method so that i need not to configure the clock again . once after i configured even though i discard the jtag usb from the pc.

Can any one help me out to solve this problem...