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authorSiva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>2015-04-13 10:57:04 +0530
committerMichal Simek <michal.simek@xilinx.com>2015-04-29 11:19:03 +0200
commita7858f62d7bff145fe699ea0af7b8f61a2affa8a (patch)
tree0a62981c13494b0252b4eeab2b634e1fd0d0460e
parenteddabd16625d8de56589564a6b6262423accd9eb (diff)
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zynq: timer: Fix wrong timer calculation
Fix wrong timer calculation in get_timer_masked incase of overflow. This fixes the issue of getting wrong time from get_timer() calls. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
-rw-r--r--arch/arm/cpu/armv7/zynq/timer.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/zynq/timer.c b/arch/arm/cpu/armv7/zynq/timer.c
index 303dbcf..5ed9642 100644
--- a/arch/arm/cpu/armv7/zynq/timer.c
+++ b/arch/arm/cpu/armv7/zynq/timer.c
@@ -93,7 +93,9 @@ ulong get_timer_masked(void)
gd->arch.tbl += gd->arch.lastinc - now;
} else {
/* We have an overflow ... */
- gd->arch.tbl += gd->arch.lastinc + TIMER_LOAD_VAL - now + 1;
+ gd->arch.tbl += gd->arch.lastinc + (TIMER_LOAD_VAL /
+ (gd->arch.timer_rate_hz / CONFIG_SYS_HZ)) -
+ now + 1;
}
gd->arch.lastinc = now;