sandbox: Only call timer_timebase_fallback() if present

This function only exists if CPU is enabled. Update the code to take
account of this, so that it does not have to be enabled on all sandbox
builds.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>

diff --git a/drivers/timer/sandbox_timer.c b/drivers/timer/sandbox_timer.c
index 2075cd4edda8d73924ce66e1622e9e82665ed615..c846bfb9f122abd79595d77bbfb8246ba10bc5aa 100644 (file)
--- a/drivers/timer/sandbox_timer.c
+++ b/drivers/timer/sandbox_timer.c
@@ -38,7 +38,8 @@ static int sandbox_timer_probe(struct udevice *dev)
 {
        struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
 
-       if (dev_read_bool(dev, "sandbox,timebase-frequency-fallback"))
+       if (CONFIG_IS_ENABLED(CPU) &&
+           dev_read_bool(dev, "sandbox,timebase-frequency-fallback"))
                return timer_timebase_fallback(dev);
        else if (!uc_priv->clock_rate)
                uc_priv->clock_rate = SANDBOX_TIMER_RATE;