prcm_setclock
prcm_setclock(4, div);
prcm_setclock(3, mul);
prcm_setclock(5, 1);
prcm_setclock(1, PRCM_CLK_SPEED_32);
prcm_setclock(2, PRCM_CLK_SPEED_32);
prcm_setclock(1, PRCM_CLK_SPEED_32);
prcm_setclock(2, PRCM_CLK_SPEED_32);
void prcm_setclock(int clock, int speed);