[U-Boot] [PATCH] arm: zynq: Fix timer loadaddress

Michal Simek michal.simek at xilinx.com
Wed Aug 28 07:36:31 CEST 2013


Reload address was written to the counter register
instead of load register.
The problem happens when timer expires but never
reload to ~0UL (it is downcount timer).

Reported-by: Stephen MacMahon <stephenm at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>

---
 arch/arm/cpu/armv7/zynq/timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv7/zynq/timer.c b/arch/arm/cpu/armv7/zynq/timer.c
index 0133565..3b8d949 100644
--- a/arch/arm/cpu/armv7/zynq/timer.c
+++ b/arch/arm/cpu/armv7/zynq/timer.c
@@ -57,7 +57,7 @@ int timer_init(void)
 			SCUTIMER_CONTROL_ENABLE_MASK;

 	/* Load the timer counter register */
-	writel(0xFFFFFFFF, &timer_base->counter);
+	writel(0xFFFFFFFF, &timer_base->load);

 	/*
 	 * Start the A9Timer device
--
1.8.2.3

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