From a7858f62d7bff145fe699ea0af7b8f61a2affa8a Mon Sep 17 00:00:00 2001
From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Date: Mon, 13 Apr 2015 10:57:04 +0530
Subject: [PATCH] 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>
---
arch/arm/cpu/armv7/zynq/timer.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/cpu/armv7/zynq/timer.c b/arch/arm/cpu/armv7/zynq/timer.c
index 303dbcfceaf..5ed9642df9b 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;
--
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