diff --git a/arch/arm/src/lpc313x/lpc313x_rng.h b/arch/arm/src/lpc313x/lpc313x_rng.h
new file mode 100755
index 00000000000..985d4f81a0f
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+++ b/arch/arm/src/lpc313x/lpc313x_rng.h
@@ -0,0 +1,85 @@
+/************************************************************************************************
+ * arch/arm/src/lpc313x/lpc313x_rng.h
+ *
+ *   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.
+ *
+ ************************************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_LPC313X_RNG_H
+#define __ARCH_ARM_SRC_LPC313X_RNG_H
+
+/************************************************************************************************
+ * Included Files
+ ************************************************************************************************/
+
+#include <nuttx/config.h>
+#include "lpc313x_memorymap.h"
+
+/************************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************************/
+
+/* RNG register base address offset into the APB0 domain ****************************************/
+
+#define LPC313X_RNG_VBASE                (LPC313X_APB0_VSECTION+LPC313X_APB0_RNG_OFFSET)
+#define LPC313X_RNG_PBASE                (LPC313X_APB0_PSECTION+LPC313X_APB0_RNG_OFFSET)
+
+/* RNG register offsets (with respect to the RNG base) ******************************************/
+
+#define LPC313X_RNG_RAND_OFFSET          0x0000 /* Random number */
+#define LPC313X_RNG_PWRDWN_OFFSET        0x0ff4 /* Power-down mode */
+
+/* RNG register (virtual) addresses *************************************************************/
+
+#define LPC313X_RNG_RAND                 (LPC313X_RNG_VBASE+LPC313X_RNG_RAND_OFFSET)
+#define LPC313X_RNG_PWRDWN               (LPC313X_RNG_VBASE+LPC313X_RNG_PWRDWN_OFFSET)
+
+/* RNG register bit definitions *****************************************************************/
+
+/* POWERDOWN, address 0x13006ff4 */
+
+#define RNG_PWRDWN_PWRDWN                (1 << 2)  /* Block all accesses to standard registers */
+#define RNG_PWRDWN_FORCERST              (1 << 1)  /* With SOFTRST forces immediate RNG reset */
+#define RNG_PWRDWN_SOFTRST               (1 << 0)  /* Software RNG reset (delayed) */
+
+/************************************************************************************************
+ * Public Types
+ ************************************************************************************************/
+
+/************************************************************************************************
+ * Public Data
+ ************************************************************************************************/
+
+/************************************************************************************************
+ * Public Functions
+ ************************************************************************************************/
+
+#endif /* __ARCH_ARM_SRC_LPC313X_RNG_H */