PINSEL4 &= ~uart_param[port].pinsel4_mask;
PINSEL4 |= uart_param[port].pinsel4;
/* LCR: set 8bit, 1 stop bit, no parity, DLAB = 0 (disable divisor modify) */
PINSEL4 &= ~uart_param[port].pinsel4_mask;
PINSEL4 |= uart_param[port].pinsel4;
/* LCR: set 8bit, 1 stop bit, no parity, DLAB = 0 (disable divisor modify) */