summaryrefslogtreecommitdiff
path: root/cpu/arm926ejs/davinci/timer.c
diff options
context:
space:
mode:
Diffstat (limited to 'cpu/arm926ejs/davinci/timer.c')
-rw-r--r--cpu/arm926ejs/davinci/timer.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/cpu/arm926ejs/davinci/timer.c b/cpu/arm926ejs/davinci/timer.c
index 4a1a54d..8bb8b45 100644
--- a/cpu/arm926ejs/davinci/timer.c
+++ b/cpu/arm926ejs/davinci/timer.c
@@ -61,10 +61,12 @@ davinci_timer *timer = (davinci_timer *)CFG_TIMERBASE;
#define TIMER_LOAD_VAL (CFG_HZ_CLOCK / CFG_HZ)
#define READ_TIMER timer->tim34
-/* Timer runs with CFG_HZ_CLOCK, currently 27MHz. To avoid wrap
- around of timestamp already after min ~159s, divide it, e.g. by 16.
- timestamp will then wrap around all min ~42min */
-#define DIV(x) ((x) >> 4)
+/*
+ * Timer runs with CFG_HZ_CLOCK, currently 27MHz. To avoid wrap
+ * around of timestamp already after min ~159s, divide it, e.g. by 16.
+ * timestamp will then wrap around all min ~42min
+ */
+#define DIV(x) ((x) >> 4)
static ulong timestamp;
static ulong lastinc;
@@ -106,20 +108,20 @@ void udelay(unsigned long usec)
void reset_timer_masked(void)
{
- lastinc = DIV(READ_TIMER);
+ lastinc = DIV(READ_TIMER);
timestamp = 0;
}
ulong get_timer_raw(void)
{
- ulong now = DIV(READ_TIMER);
+ ulong now = DIV(READ_TIMER);
if (now >= lastinc) {
/* normal mode */
timestamp += now - lastinc;
} else {
/* overflow ... */
- timestamp += now + DIV(TIMER_LOAD_VAL) - lastinc;
+ timestamp += now + DIV(TIMER_LOAD_VAL) - lastinc;
}
lastinc = now;
return timestamp;
@@ -127,7 +129,7 @@ ulong get_timer_raw(void)
ulong get_timer_masked(void)
{
- return(get_timer_raw() / DIV(TIMER_LOAD_VAL));
+ return(get_timer_raw() / DIV(TIMER_LOAD_VAL));
}
void udelay_masked(unsigned long usec)