From: Fu Wei <fu....@linaro.org>
This patch simplify arch_counter_get_cntvct_mem function by
using readq to get 64-bit CNTVCT value instead of readl_relaxed.
Signed-off-by: Fu Wei <fu....@linaro.org>
---
drivers/clocksource/arm_arch_timer.c | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/clocksource/arm_arch_timer.c
b/drivers/clocksource/arm_arch_timer.c
index e6fd42d..483d2f9 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -418,15 +418,7 @@ u32 arch_timer_get_rate(void)
static u64 arch_counter_get_cntvct_mem(void)
{
- u32 vct_lo, vct_hi, tmp_hi;
-
- do {
- vct_hi = readl_relaxed(arch_counter_base + CNTVCT_HI);
- vct_lo = readl_relaxed(arch_counter_base + CNTVCT_LO);
- tmp_hi = readl_relaxed(arch_counter_base + CNTVCT_HI);
- } while (vct_hi != tmp_hi);
-
- return ((u64) vct_hi << 32) | vct_lo;
+ return readq(arch_counter_base + CNTVCT_LO);
}
/*
--
2.5.5
