[PATCH 09/44] leon, gptimer: start/reset must take RS and IP into account

Daniel Hellstrom daniel at gaisler.com
Fri Mar 3 14:56:42 UTC 2017


---
 c/src/lib/libbsp/sparc/shared/timer/gptimer.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/c/src/lib/libbsp/sparc/shared/timer/gptimer.c b/c/src/lib/libbsp/sparc/shared/timer/gptimer.c
index 0553f5d..f8c6da2 100644
--- a/c/src/lib/libbsp/sparc/shared/timer/gptimer.c
+++ b/c/src/lib/libbsp/sparc/shared/timer/gptimer.c
@@ -377,7 +377,8 @@ static void gptimer_tlib_reset(struct tlib_dev *hand)
 {
 	struct gptimer_timer *timer = (struct gptimer_timer *)hand;
 
-	timer->tregs->ctrl = 0;
+	timer->tregs->ctrl = (timer->tregs->ctrl & timer->irq_ack_mask) &
+			     GPTIMER_CTRL_IP;
 	timer->tregs->reload = 0xffffffff;
 	timer->tregs->ctrl = GPTIMER_CTRL_LD;
 }
@@ -464,7 +465,8 @@ static void gptimer_tlib_start(struct tlib_dev *hand, int once)
 	ctrl = GPTIMER_CTRL_LD | GPTIMER_CTRL_EN;
 	if ( once == 0 )
 		ctrl |= GPTIMER_CTRL_RS; /* Restart Timer */
-	timer->tregs->ctrl |= ctrl;
+	timer->tregs->ctrl = ctrl | (timer->tregs->ctrl & timer->irq_ack_mask &
+			     ~GPTIMER_CTRL_RS);
 }
 
 static void gptimer_tlib_stop(struct tlib_dev *hand)
-- 
2.7.4




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