FMUv2: Add missing declarations.

src/drivers/boards/px4fmu-v2/board_config.h

@@ -229,6 +229,27 @@ __BEGIN_DECLS
 
 extern void stm32_spiinitialize(void);
 
+extern void stm32_usbinitialize(void);
+
+/****************************************************************************
+ * Name: nsh_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization for NSH.
+ *
+ *   CONFIG_NSH_ARCHINIT=y :
+ *     Called from the NSH library
+ *
+ *   CONFIG_BOARD_INITIALIZE=y, CONFIG_NSH_LIBRARY=y, &&
+ *   CONFIG_NSH_ARCHINIT=n :
+ *     Called from board_initialize().
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_NSH_LIBRARY
+int nsh_archinitialize(void);
+#endif
+
 #endif /* __ASSEMBLY__ */
 
 __END_DECLS

src/drivers/boards/px4fmu-v2/px4fmu2_init.c

@@ -94,6 +94,19 @@
 #  endif
 #endif
 
+/*
+ * Ideally we'd be able to get these from up_internal.h,
+ * but since we want to be able to disable the NuttX use
+ * of leds for system indication at will and there is no
+ * separate switch, we need to build independent of the
+ * CONFIG_ARCH_LEDS configuration switch.
+ */
+__BEGIN_DECLS
+extern void led_init(void);
+extern void led_on(int led);
+extern void led_off(int led);
+__END_DECLS
+
 /****************************************************************************
  * Protected Functions
  ****************************************************************************/