Add support for the early timer so we can use tracing with sandbox again.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: - Use SANDBOX_TIMER_RATE instead of an open-coded value
drivers/timer/sandbox_timer.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/drivers/timer/sandbox_timer.c b/drivers/timer/sandbox_timer.c index a8da936..6a6411a 100644 --- a/drivers/timer/sandbox_timer.c +++ b/drivers/timer/sandbox_timer.c @@ -10,6 +10,8 @@ #include <timer.h> #include <os.h>
+#define SANDBOX_TIMER_RATE 1000000 + /* system timer offset in ms */ static unsigned long sandbox_timer_offset;
@@ -18,9 +20,19 @@ void sandbox_timer_add_offset(unsigned long offset) sandbox_timer_offset += offset; }
-static int sandbox_timer_get_count(struct udevice *dev, u64 *count) +u64 notrace timer_early_get_count(void) +{ + return os_get_nsec() / 1000 + sandbox_timer_offset * 1000; +} + +unsigned long notrace timer_early_get_rate(void) +{ + return SANDBOX_TIMER_RATE; +} + +static notrace int sandbox_timer_get_count(struct udevice *dev, u64 *count) { - *count = os_get_nsec() / 1000 + sandbox_timer_offset * 1000; + *count = timer_early_get_count();
return 0; } @@ -30,7 +42,7 @@ static int sandbox_timer_probe(struct udevice *dev) struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
if (!uc_priv->clock_rate) - uc_priv->clock_rate = 1000000; + uc_priv->clock_rate = SANDBOX_TIMER_RATE;
return 0; }