[U-Boot] [PATCH] zynq: timer: Fix wrong timer calculation

[Michal Simek]

From: Siva Durga Prasad Paladugu <siva.durga.paladugu at xilinx.com>

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 at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at 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 303dbcfceafb..5ed9642df9b3 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;
 
-- 
2.3.5