[U-Boot] [PATCH 1/6] ARM: highbank: fix us_to_tick calculation
Rob Herring
robherring2 at gmail.com
Thu Feb 2 03:57:52 CET 2012
From: Rob Herring <rob.herring at calxeda.com>
udelay calls were off due to failing to convert us to ns. Fix this and drop
the unnecessary shifts since NS_PER_TICK is only 7ns.
Signed-off-by: Rob Herring <rob.herring at calxeda.com>
---
arch/arm/cpu/armv7/highbank/timer.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/cpu/armv7/highbank/timer.c b/arch/arm/cpu/armv7/highbank/timer.c
index d8a0288..d5b6cb6 100644
--- a/arch/arm/cpu/armv7/highbank/timer.c
+++ b/arch/arm/cpu/armv7/highbank/timer.c
@@ -66,10 +66,10 @@ static inline unsigned long long time_to_tick(unsigned long long time)
static inline unsigned long long us_to_tick(unsigned long long us)
{
- unsigned long long tick = us << 16;
+ unsigned long long tick = us * 1000;
tick += NS_PER_TICK - 1;
do_div(tick, NS_PER_TICK);
- return tick >> 16;
+ return tick;
}
unsigned long long get_ticks(void)
--
1.7.5.4
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