#include <common.h>
#include <asm/io.h>
#include <asm/arch/tegra2.h>
+#include <asm/arch/timer.h>
DECLARE_GLOBAL_DATA_PTR;
-struct timerus *timer_base = (struct timerus *)NV_PA_TMRUS_BASE;
-
/* counter runs at 1MHz */
-#define TIMER_CLK (1000000)
+#define TIMER_CLK 1000000
#define TIMER_LOAD_VAL 0xffffffff
/* timer without interrupts */
void __udelay(unsigned long usec)
{
long tmo = usec * (TIMER_CLK / 1000) / 1000;
- unsigned long now, last = readl(&timer_base->cntr_1us);
+ unsigned long now, last = timer_get_us();
while (tmo > 0) {
- now = readl(&timer_base->cntr_1us);
+ now = timer_get_us();
if (last > now) /* count up timer overflow */
tmo -= TIMER_LOAD_VAL - last + now;
else
ulong now;
/* current tick value */
- now = readl(&timer_base->cntr_1us) / (TIMER_CLK / CONFIG_SYS_HZ);
+ now = timer_get_us() / (TIMER_CLK / CONFIG_SYS_HZ);
if (now >= gd->lastinc) /* normal mode (non roll) */
/* move stamp forward with absolute diff ticks */
{
return CONFIG_SYS_HZ;
}
+
+unsigned long timer_get_us(void)
+{
+ struct timerus *timer_base = (struct timerus *)NV_PA_TMRUS_BASE;
+
+ return readl(&timer_base->cntr_1us);
+}