esp32: by default, set 40MHz crystal frequency

diff --git a/components/esp32/Kconfig b/components/esp32/Kconfig
index b50649ce496728ddf697040311ce802267b54453..75bf7da6376c67a7ced51bcdb93c8ff884beaa67 100644 (file)
--- a/components/esp32/Kconfig
+++ b/components/esp32/Kconfig
@@ -562,7 +562,7 @@ config ESP32_DEEP_SLEEP_WAKEUP_DELAY
 
 choice ESP32_XTAL_FREQ_SEL
     prompt "Main XTAL frequency"
-    default ESP32_XTAL_FREQ_AUTO
+    default ESP32_XTAL_FREQ_40
     help
         ESP32 currently supports the following XTAL frequencies: