function driving the led

Hi guys,

I am new to the linux and as soon as switch on the mini2440 board all the
leds starts toggling.so can anybody help me in the mini2440 which function
is toggling the leds in the kernel.

In terminal type in:

find -name led* -print

and maybe you will be given a few places to look for the little program
that flashes the LEDs on startup.