pxa: fixing get_timer to return time in miliseconds.
Fixing the get_timer function to return time in miliseconds instead of
ticks. Also fixed PXA boards to use the conventional value of 1000 for
CONFIG_SYS_HZ.
Signed-off-by: Micha Kalfon <smichak.uv@gmail.com>
diff --git a/cpu/pxa/interrupts.c b/cpu/pxa/interrupts.c
index ec8fb9e..40d8bf2 100644
--- a/cpu/pxa/interrupts.c
+++ b/cpu/pxa/interrupts.c
@@ -33,6 +33,14 @@
#error: interrupts not implemented yet
#endif
+#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS)
+#define TIMER_FREQ_HZ 3250000
+#elif defined(CONFIG_PXA250)
+#define TIMER_FREQ_HZ 3686400
+#else
+#error "Timer frequency unknown - please config PXA CPU type"
+#endif
+
int interrupt_init (void)
{
/* nothing happens here - we don't setup any IRQs */
@@ -67,7 +75,10 @@
ulong get_timer_masked (void)
{
- return OSCR;
+ unsigned long long ticks = get_ticks();
+
+ return (((ticks / TIMER_FREQ_HZ) * 1000) +
+ ((ticks % TIMER_FREQ_HZ) * 1000) / TIMER_FREQ_HZ);
}
void udelay_masked (unsigned long usec)
@@ -78,17 +89,17 @@
if (usec >= 1000) {
tmo = usec / 1000;
- tmo *= CONFIG_SYS_HZ;
+ tmo *= TIMER_FREQ_HZ;
tmo /= 1000;
} else {
- tmo = usec * CONFIG_SYS_HZ;
+ tmo = usec * TIMER_FREQ_HZ;
tmo /= (1000*1000);
}
- endtime = get_timer_masked () + tmo;
+ endtime = get_ticks() + tmo;
do {
- ulong now = get_timer_masked ();
+ ulong now = get_ticks();
diff = endtime - now;
} while (diff >= 0);
}
@@ -99,7 +110,7 @@
*/
unsigned long long get_ticks(void)
{
- return get_timer(0);
+ return OSCR;
}
/*
@@ -109,6 +120,6 @@
ulong get_tbclk (void)
{
ulong tbclk;
- tbclk = CONFIG_SYS_HZ;
+ tbclk = TIMER_FREQ_HZ;
return tbclk;
}