at91rm9200: move serial shutdown code to serial drivers
introduce serial_exit for this purpose. Use it only when the rm9200
serial driver is active
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/common.h b/include/common.h
index 20c058a..30fff7d 100644
--- a/include/common.h
+++ b/include/common.h
@@ -453,6 +453,7 @@
/* $(CPU)/serial.c */
int serial_init (void);
+void serial_exit (void);
void serial_addr (unsigned int);
void serial_setbrg (void);
void serial_putc (const char);