Implementation of /dev/random using the STM32 Random Number Generator (RNG)

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5207 42af7a65-404d-4744-a932-0658087f49c3

nuttx/arch/arm/src/common/up_initialize.c

@@ -171,6 +171,12 @@ void up_initialize(void)
   ramlog_consoleinit();
 #endif
 
+  /* Initialize the Random Number Generator (RNG)  */
+
+#ifdef CONFIG_DEV_RANDOM
+  up_rnginitialize();
+#endif
+
   /* Initialize the system logging device */
 
 #ifdef CONFIG_SYSLOG_CHAR

nuttx/arch/arm/src/common/up_internal.h

@@ -373,6 +373,12 @@ extern void up_usbuninitialize(void);
 # define up_usbuninitialize()
 #endif
 
+/* Random Number Generator (RNG) ********************************************/
+
+#ifdef CONFIG_DEV_RANDOM
+extern void up_rnginitialize(void);
+#endif
+
 /****************************************************************************
  * Name: up_check_stack
  *