diff options
| -rw-r--r-- | hw/timer/arm_mptimer.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/hw/timer/arm_mptimer.c b/hw/timer/arm_mptimer.c index 8b93b3c1ae..0e132b15b5 100644 --- a/hw/timer/arm_mptimer.c +++ b/hw/timer/arm_mptimer.c @@ -122,11 +122,18 @@ static void timerblock_write(void *opaque, hwaddr addr, case 8: /* Control. */ old = tb->control; tb->control = value; - if (((old & 1) == 0) && (value & 1)) { - if (tb->count == 0 && (tb->control & 2)) { + if (value & 1) { + if ((old & 1) && (tb->count != 0)) { + /* Do nothing if timer is ticking right now. */ + break; + } + if (tb->control & 2) { tb->count = tb->load; } timerblock_reload(tb, 1); + } else if (old & 1) { + /* Shutdown the timer. */ + timer_del(tb->timer); } break; case 12: /* Interrupt status. */ |