diff --git a/docs/Doxyfile_chm b/docs/Doxyfile_chm
index f7070e26f..ae7595bc4 100644
--- a/docs/Doxyfile_chm
+++ b/docs/Doxyfile_chm
@@ -646,6 +646,7 @@ INPUT                  = ../docs/src \
                          ../os/kernel/src \
                          ../os/kernel/templates \
                          ../os/ports \
+                         ../os/ports/common/ARMCMx \
                          ../os/ports/GCC/ARM \
                          ../os/ports/GCC/ARM/LPC214x \
                          ../os/ports/GCC/ARM/AT91SAM7 \
diff --git a/docs/Doxyfile_html b/docs/Doxyfile_html
index 2130ff4ea..a6f4a0939 100644
--- a/docs/Doxyfile_html
+++ b/docs/Doxyfile_html
@@ -646,6 +646,7 @@ INPUT                  = ../docs/src \
                          ../os/kernel/src \
                          ../os/kernel/templates \
                          ../os/ports \
+                         ../os/ports/common/ARMCMx \
                          ../os/ports/GCC/ARM \
                          ../os/ports/GCC/ARM/LPC214x \
                          ../os/ports/GCC/ARM/AT91SAM7 \
diff --git a/os/ports/common/ARMCMx/port.dox b/os/ports/common/ARMCMx/port.dox
new file mode 100644
index 000000000..52b58ffd7
--- /dev/null
+++ b/os/ports/common/ARMCMx/port.dox
@@ -0,0 +1,34 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+                 2011,2012 Giovanni Di Sirio.
+
+    This file is part of ChibiOS/RT.
+
+    ChibiOS/RT is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS/RT is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @defgroup COMMON_ARMCMx ARM Cortex-Mx
+ * @ingroup port_common
+ */
+ 
+/**
+ * @defgroup COMMON_ARMCMx_NVIC NVIC Support
+ * @details ARM Cortex-Mx NVIC support.
+ *
+ * @ingroup COMMON_ARMCMx
+ */
+
+ /** @} */
+ 
\ No newline at end of file
diff --git a/os/ports/ports.dox b/os/ports/ports.dox
index 938f92583..ab0927efb 100644
--- a/os/ports/ports.dox
+++ b/os/ports/ports.dox
@@ -24,6 +24,13 @@
  * ChibiOS/RT ports.
  */
 
+/**
+ * @defgroup port_common Common Code
+ * Code common to all compilers.
+ *
+ * @ingroup ports
+ */
+
 /**
  * @defgroup gcc GCC Ports
  * Ports for the GCC compiler or derivatives.