diff --git a/arch/xtensa/src/esp32/esp32_serial.c b/arch/xtensa/src/esp32/esp32_serial.c
index b6ebb6c253..53557b7344 100644
--- a/arch/xtensa/src/esp32/esp32_serial.c
+++ b/arch/xtensa/src/esp32/esp32_serial.c
@@ -1168,7 +1168,7 @@ static bool esp32_txempty(struct uart_dev_s *dev)
  ****************************************************************************/
 
 /****************************************************************************
- * Name: up_earlyserialinit
+ * Name: xtensa_serial_initialize
  *
  * Description:
  *   Performs the low level UART initialization early in debug so that the
@@ -1178,7 +1178,7 @@ static bool esp32_txempty(struct uart_dev_s *dev)
  ****************************************************************************/
 
 #ifdef USE_EARLYSERIALINIT
-void up_earlyserialinit(void)
+void xtensa_serial_initialize(void)
 {
   /* NOTE:  All GPIO configuration for the UARTs was performed in
    * esp32_lowsetup
@@ -1204,7 +1204,7 @@ void up_earlyserialinit(void)
 #endif
 
 /****************************************************************************
- * Name: up_serialinit
+ * Name: xtensa_serial_initialize
  *
  * Description:
  *   Register serial console and serial ports.  This assumes
diff --git a/sched/Kconfig b/sched/Kconfig
index bf40372785..b10d3e3caf 100644
--- a/sched/Kconfig
+++ b/sched/Kconfig
@@ -188,15 +188,21 @@ if !RTC
 
 config START_YEAR
 	int "Start year"
-	default 2014
+	default 2016
+	range 1970 2106
+	---help---
+		NuttX uses an unsigned 32-bit integer for time_t which provides a
+		range from 1970 to 2106.
 
 config START_MONTH
 	int "Start month"
 	default 1
+	range 1 12
 
 config START_DAY
 	int "Start day"
 	default 1
+	range 1 31
 
 endif # !RTC