Add freedom-kl25z/minnsh configuration: This is an experiment to see just how small we and get an NSH configuration. From Alan Carvalho de Assis.

ChangeLog

@@ -5678,4 +5678,9 @@
 	* arch/arm/src/sama5/sam_touchscreen.h and .h:  Framework for a
 	  touchscreen driver (also an empty "skeleton" file on the initial
 	  commit) (2013-9-30).
-
+	* arch/arm/src/kl/kl_lowgetc.c and .h:  First cut at low-level
+	  getc() function for operation with no file system (and, hence,
+	  no serial driver) (from Alan Carvalho de Assis, 2013-9-30).
+	* configs/freedom-kl25z/minnsh:  A new configuration that is
+	  an experiement to see how small we can get the NuttX footprint.
+	  From Carvalho de Assis. (2013-9-30).

arch/arm/src/kl/kl_lowgetc.c

@@ -109,7 +109,7 @@
  *
  **************************************************************************/
 
-uint32_t kl_lowgetc(void)
+int kl_lowgetc(void)
 {
   uint8_t ch = 0;
 
@@ -125,5 +125,5 @@ uint32_t kl_lowgetc(void)
   ch = getreg8(CONSOLE_BASE+KL_UART_D_OFFSET);
 #endif
 
-  return (int) ch;
+  return (int)ch;
 }

configs/freedom-kl25z/minnsh/Make.defs

@@ -116,7 +116,7 @@ ifeq ($(WINTOOL),y)
   DIRUNLINK = $(TOPDIR)/tools/unlink.sh
   MKDEP = $(TOPDIR)/tools/mknulldeps.sh
 else
-  # Linux/Cygwin-native host tools 
+  # Linux/Cygwin-native host tools
   MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
 endif
 

configs/freedom-kl25z/nsh/Make.defs

@@ -116,7 +116,7 @@ ifeq ($(WINTOOL),y)
   DIRUNLINK = $(TOPDIR)/tools/unlink.sh
   MKDEP = $(TOPDIR)/tools/mknulldeps.sh
 else
-  # Linux/Cygwin-native host tools 
+  # Linux/Cygwin-native host tools
   MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
 endif