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Diffstat (limited to 'arch/arm/imx-common/timer.c')
-rw-r--r--arch/arm/imx-common/timer.c26
1 files changed, 7 insertions, 19 deletions
diff --git a/arch/arm/imx-common/timer.c b/arch/arm/imx-common/timer.c
index ab37d641ec..1dbc413d46 100644
--- a/arch/arm/imx-common/timer.c
+++ b/arch/arm/imx-common/timer.c
@@ -48,9 +48,6 @@ static struct mxc_gpt *cur_gpt = (struct mxc_gpt *)GPT1_BASE_ADDR;
DECLARE_GLOBAL_DATA_PTR;
-#define timestamp (gd->arch.tbl)
-#define lastinc (gd->arch.lastinc)
-
static inline unsigned long long tick_to_time(unsigned long long tick)
{
tick *= CONFIG_SYS_HZ;
@@ -70,7 +67,6 @@ static inline unsigned long long us_to_tick(unsigned long long usec)
int timer_init(void)
{
int i;
- ulong val;
/* setup GP Timer 1 */
__raw_writel(GPTCR_SWR, &cur_gpt->control);
@@ -85,9 +81,8 @@ int timer_init(void)
i = __raw_readl(&cur_gpt->control);
__raw_writel(i | GPTCR_CLKSOURCE_32 | GPTCR_TEN, &cur_gpt->control);
- val = __raw_readl(&cur_gpt->counter);
- lastinc = val / (MXC_CLK32 / CONFIG_SYS_HZ);
- timestamp = 0;
+ gd->arch.tbl = __raw_readl(&cur_gpt->counter);
+ gd->arch.tbu = 0;
return 0;
}
@@ -96,18 +91,11 @@ unsigned long long get_ticks(void)
{
ulong now = __raw_readl(&cur_gpt->counter); /* current tick value */
- if (now >= lastinc) {
- /*
- * normal mode (non roll)
- * move stamp forward with absolut diff ticks
- */
- timestamp += (now - lastinc);
- } else {
- /* we have rollover of incrementer */
- timestamp += (0xFFFFFFFF - lastinc) + now;
- }
- lastinc = now;
- return timestamp;
+ /* increment tbu if tbl has rolled over */
+ if (now < gd->arch.tbl)
+ gd->arch.tbu++;
+ gd->arch.tbl = now;
+ return (((unsigned long long)gd->arch.tbu) << 32) | gd->arch.tbl;
}
ulong get_timer_masked(void)
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