diff --git a/arch/arm/src/lpc313x/Make.defs b/arch/arm/src/lpc313x/Make.defs
index f8f16b09c9..77b6e6b185 100755
--- a/arch/arm/src/lpc313x/Make.defs
+++ b/arch/arm/src/lpc313x/Make.defs
@@ -47,7 +47,7 @@ CMN_CSRCS	= up_assert.c up_blocktask.c up_copystate.c up_createstack.c \
 
 CGU_ASRCS	= 
 CGU_CSRCS	= lpc313x_clkdomain.c lpc313x_clkfreq.c lpc313x_esrndx.c \
-		  lpc313x_fdcndx.c lpc313x_softreset.c
+		  lpc313x_fdcndx.c lpc313x_freqin.c lpc313x_softreset.c
 
 CHIP_ASRCS	= $(CGU_ASRCS)
 CHIP_CSRCS	= lpc313x_allocateheap.c lpc313x_boot.c lpc313x_irq.c \
diff --git a/arch/arm/src/lpc313x/lpc313x_cgudrvr.h b/arch/arm/src/lpc313x/lpc313x_cgudrvr.h
index d1472aaacb..3462badb28 100755
--- a/arch/arm/src/lpc313x/lpc313x_cgudrvr.h
+++ b/arch/arm/src/lpc313x/lpc313x_cgudrvr.h
@@ -400,9 +400,7 @@ enum lpc313x_resetid_e
  * Public Data
  ************************************************************************/
 
-/* This array must be provided by the board-specific logic to provide
- * the programmed frequency of every input source.
- */
+/* This array provides the programmed frequency of every input source */
 
 EXTERN const int32_t g_boardfreqin[CGU_NFREQIN];
 
diff --git a/arch/arm/src/lpc313x/lpc313x_freqin.c b/arch/arm/src/lpc313x/lpc313x_freqin.c
new file mode 100755
index 0000000000..4b44741b8a
--- /dev/null
+++ b/arch/arm/src/lpc313x/lpc313x_freqin.c
@@ -0,0 +1,73 @@
+/****************************************************************************
+ * configs/ea3131/src/up_cgu.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+
+#include <arch/board/board.h>
+
+#include "lpc313x_cgudrvr.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+const int32_t g_boardfreqin[CGU_NFREQIN] =
+{
+  BOARD_FREQIN_FFAST,       /* Index=CGU_FREQIN_FFAST */
+  BOARD_FREQIN_I2SRXBCK0,   /* Index=CGU_FREQIN_I2SRXBCK0 */
+  BOARD_FREQIN_I2SRXWS0,    /* Index=CGU_FREQIN_I2SRXWS0 */
+  BOARD_FREQIN_I2SRXBCK1,   /* Index=CGU_FREQIN_I2SRXBCK1 */
+  BOARD_FREQIN_I2SRXWS1,    /* Index=CGU_FREQIN_I2SRXWS1 */
+  BOARD_FREQIN_HPPLL0,      /* Index=CGU_FREQIN_HPPLL0 (Audio/I2S PLL) */
+  BOARD_FREQIN_HPPLL1       /* Index=CGU_FREQIN_HPPLL1 (System PLL) */
+};
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/