+extern void mxc_timer_init(struct clk *timer_clk);
+extern int mx1_clocks_init(unsigned long fref);
+extern int mx21_clocks_init(unsigned long lref, unsigned long fref);
+extern int mx27_clocks_init(unsigned long fref);
+extern int mx31_clocks_init(unsigned long fref);
+extern int mx35_clocks_init(void);