__cpm2_setbrg
extern void __cpm2_setbrg(uint brg, uint rate, uint clk, int div16, int src);
__cpm2_setbrg(brg, rate, CPM2_BRG_UART_CLK, 0, CPM_BRG_EXTC_INT);
__cpm2_setbrg(brg, rate, CPM2_BRG_INT_CLK, div16, CPM_BRG_EXTC_INT);
EXPORT_SYMBOL(__cpm2_setbrg);