Merge pull request #3795 from nikvoid/stm32-phy-addr-detection

STM32: Option to detect Ethernet PHY address automatically

examples/stm32f7/src/bin/eth.rs

@@ -77,7 +77,7 @@ async fn main(spawner: Spawner) -> ! {
         p.PG13,
         p.PB13,
         p.PG11,
-        GenericSMI::new(0),
+        GenericSMI::new_auto(),
         mac_addr,
     );