diff --git a/arch/arm/include/lpc313x/irq.h b/arch/arm/include/lpc313x/irq.h
new file mode 100755
index 0000000000..681a34b365
--- /dev/null
+++ b/arch/arm/include/lpc313x/irq.h
@@ -0,0 +1,117 @@
+/****************************************************************************
+ * arch/arm/include/lpc313x/irq.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.
+ *
+ ****************************************************************************/
+
+/* This file should never be included directed but, rather,
+ * only indirectly through nuttx/irq.h
+ */
+
+#ifndef __ARCH_ARM_INCLUDE_LPC313X_IRQ_H
+#define __ARCH_ARM_INCLUDE_LPC313X_IRQ_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* LPC313X Interrupts */
+
+#define LPC313X_IRQ_IRQ0      0 /* IRQ1:  Event router cascaded IRQ0 */
+#define LPC313X_IRQ_IRQ1      1 /* IRQ2:  Event router cascaded IRQ1 */
+#define LPC313X_IRQ_IRQ2      2 /* IRQ3:  Event router cascaded IRQ2 */
+#define LPC313X_IRQ_IRQ3      3 /* IRQ4:  Event router cascaded IRQ3 */
+#define LPC313X_IRQ_TMR0      4 /* IRQ5:  Timer 0 Interrupt */
+#define LPC313X_IRQ_TMR1      5 /* IRQ6:  Timer 1 Interrupt */
+#define LPC313X_IRQ_TMR2      6 /* IRQ7:  Timer 2 Interrupt */
+#define LPC313X_IRQ_TMR3      7 /* IRQ8:  Timer 3 Interrupt */
+#define LPC313X_IRQ_TMR3      8 /* IRQ9:  ADC 10-bit */
+#define LPC313X_IRQ_UART      9 /* IRQ10: UART */
+#define LPC313X_IRQ_I2C0     10 /* IRQ11: I2C0 */
+#define LPC313X_IRQ_I2C1     11 /* IRQ12: I2C1 */
+#define LPC313X_IRQ_I2STX0   12 /* IRQ13: I2S0 Transmit */
+#define LPC313X_IRQ_I2STX1   13 /* IRQ14: I2S1 Transmit */
+#define LPC313X_IRQ_I2SRX0   14 /* IRQ15: I2S0 Receive */
+#define LPC313X_IRQ_I2SRX1   15 /* IRQ16: I2S1 Receive */
+                                /* IRQ17: Reserved */
+#define LPC313X_IRQ_LCD      17 /* IRQ18: LCD Interface */
+#define LPC313X_IRQ_SPISMS   18 /* IRQ19: SPI SMS */
+#define LPC313X_IRQ_SPITX    19 /* IRQ20: SPI Transmit */
+#define LPC313X_IRQ_SPIRX    20 /* IRQ21: SPI Receive */
+#define LPC313X_IRQ_SPIOVF   21 /* IRQ22: SPI Overflow */
+#define LPC313X_IRQ_SPI      22 /* IRQ23: SPI */
+#define LPC313X_IRQ_DMA      23 /* IRQ24: DMA */
+#define LPC313X_IRQ_NAND     24 /* IRQ25: NAND FLASH Controller */
+#define LPC313X_IRQ_MCI      25 /* IRQ26: MCI */
+#define LPC313X_IRQ_USBOTG   26 /* IRQ27: USB OTG */
+#define LPC313X_IRQ_ISRAM0   27 /* IRQ28: ISRAM0 MRC Finished */
+#define LPC313X_IRQ_ISRAM1   28 /* IRQ29: ISRAM1 MRC Finished */
+
+#define LPC313X_IRQ_SYSTIMER LPC313X_IRQ_TMR0
+#define NR_IRQS             (LPC313X_IRQ_ISRAM1+1)
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Inline functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+#endif /* __ARCH_ARM_INCLUDE_LPC313X_IRQ_H */
+