[RFC qemu legoater/aspeed-3.1 2/4] timer: aspeed: Status register contains reload for stopped timer

[Andrew Jeffery]

>From the datasheet:

> This register stores the current status of counter #N. When timer
> enable bit TMC30[N * b] is disabled, the reload register will be
> loaded into this counter. When timer bit TMC30[N * b] is set, the
> counter will start to decrement. CPU can update this register value
> when enable bit is set.

Signed-off-by: Andrew Jeffery <andrew at aj.id.au>
---
 hw/timer/aspeed_timer.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/hw/timer/aspeed_timer.c b/hw/timer/aspeed_timer.c
index 54c75bf4f322..6adc14d62034 100644
--- a/hw/timer/aspeed_timer.c
+++ b/hw/timer/aspeed_timer.c
@@ -182,7 +182,11 @@ static uint64_t aspeed_timer_get_value(AspeedTimer *t, int reg)
 
     switch (reg) {
     case TIMER_REG_STATUS:
-        value = calculate_ticks(t, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
+        if (timer_enabled(t)) {
+            value = calculate_ticks(t, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
+        } else {
+            value = t->reload;
+        }
         break;
     case TIMER_REG_RELOAD:
         value = t->reload;
-- 
2.19.1