Small timer support fix Adding useful define in timer support.

drivers/countertimers.c

@@ -273,7 +273,7 @@ int countertimer_tc_setup(uint8_t timer_num, const struct lpc_tc_config* conf)
 	/* Select between timer (counts on PCLK) and counter mode (counts on CAP events) */
 	if (conf->mode & LPC_TIMER_MODE_COUNTER) {
 		/* Configure the counter */
-		timer->regs->count_ctrl = (conf->count_control & 0x0F);
+		timer->regs->count_ctrl = (conf->count_control & 0x03);
 		timer->regs->count_ctrl |= LPC_COUNTER_INC_INPUT(conf->count_chan);
 	} else {
 		/* Timer mode */

include/drivers/timers.h

@@ -239,6 +239,7 @@ int timer_counter_config(uint8_t timer_num, const struct lpc_tc_config* conf);
  *   config field in timer_config struct upon timer setup)
  *   The interrupt flags are passed to the interrupt routine as argument.
  */
+#define TIMER_NO_PRESCALE  0
 int timer_on(uint8_t timer_num, uint32_t clkrate, void (*callback)(uint32_t));
 
 /* Removes the main clock from the selected timer block */