SAMA5: Add GPBR register definitions

ChangeLog

@@ -5816,4 +5816,6 @@
 	  Support for RTC alarms is fragmentary and this has not yet been hooked
 	  into the build system  (2013-10-18).
 	* Various Spark and CC3000 files:  Update by David Sidrane (2013-10-18).
+	* arch/arm/src/sama5/chip/sam_gpbr.h:  Add SAMA5 GPBR register
+	  definitions (2013-10-19).
 

arch/arm/src/sama5/chip/sam_gpbr.h

@@ -0,0 +1,68 @@
+/************************************************************************************
+ * arch/arm/src/sama5/chip/sam_gpbr.h
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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_SAMA5_CHIP_SAM_GPBR_H
+#define __ARCH_ARM_SRC_SAMA5_CHIP_SAM_GPBR_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include "chip/sam_memorymap.h"
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+/* GPBR Register Offsets ************************************************************/
+
+#define SAM_SYS_GPBR_OFFSET(n) ((n) << 2) /* General Purpose Backup Register n, 1=0..3 */
+#define SAM_SYS_GPBR0_OFFSET   0x0000 /* General Purpose Backup Register 0 */
+#define SAM_SYS_GPBR1_OFFSET   0x0004 /* General Purpose Backup Register 0 */
+#define SAM_SYS_GPBR2_OFFSET   0x0008 /* General Purpose Backup Register 0 */
+#define SAM_SYS_GPBR3_OFFSET   0x000c /* General Purpose Backup Register 0 */
+
+/* GPBR Register Addresses **********************************************************/
+
+#define SAM_SYS_GPBR(n)        (SAM_GPBR_VBASE+SAM_SYS_GPBR_OFFSET(n))
+#define SAM_SYS_GPBR0          (SAM_GPBR_VBASE+SAM_SYS_GPBR0_OFFSET)
+#define SAM_SYS_GPBR1          (SAM_GPBR_VBASE+SAM_SYS_GPBR1_OFFSET)
+#define SAM_SYS_GPBR2          (SAM_GPBR_VBASE+SAM_SYS_GPBR2_OFFSET)
+#define SAM_SYS_GPBR3          (SAM_GPBR_VBASE+SAM_SYS_GPBR3_OFFSET)
+
+/* GPBR Register Bit Definitions ****************************************************/
+/* All GPBR registers hold user-defined, 32-bit values */
+
+#endif /* __ARCH_ARM_SRC_SAMA5_CHIP_SAM_GPBR_H */