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diff --git a/cpsw/src/include/hw_types.h b/cpsw/src/include/hw_types.h
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+/**
+ * \file  hw_types.h
+ *
+ * \brief Common type definitions and macros
+ */
+
+/*
+* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+*/
+/*
+*  Redistribution and use in source and binary forms, with or without
+*  modification, are permitted provided that the following conditions
+*  are met:
+*
+*    Redistributions of source code must retain the above copyright
+*    notice, this list of conditions and the following disclaimer.
+*
+*    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.
+*
+*    Neither the name of Texas Instruments Incorporated 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 _HW_TYPES_H_
+#define _HW_TYPES_H_
+
+//*****************************************************************************
+//
+// Define a boolean type, and values for true and false.
+//
+//*****************************************************************************
+typedef unsigned char tBoolean;
+
+#ifndef true
+#define true 1
+#endif
+
+#ifndef false
+#define false 0
+#endif
+
+#ifndef NULL
+#define NULL ((void*) 0)
+#endif
+//*****************************************************************************
+//
+// Macros for hardware access, both direct and via the bit-band region.
+//
+//*****************************************************************************
+#define HWREG(x)                                                              \
+        (*((volatile unsigned int *)(x)))
+#define HWREGH(x)                                                             \
+        (*((volatile unsigned short *)(x)))
+#define HWREGB(x)                                                             \
+        (*((volatile unsigned char *)(x)))
+#define HWREGBITW(x, b)                                                       \
+        HWREG(((unsigned int)(x) & 0xF0000000) | 0x02000000 |                \
+              (((unsigned int)(x) & 0x000FFFFF) << 5) | ((b) << 2))
+#define HWREGBITH(x, b)                                                       \
+        HWREGH(((unsigned int)(x) & 0xF0000000) | 0x02000000 |               \
+               (((unsigned int)(x) & 0x000FFFFF) << 5) | ((b) << 2))
+#define HWREGBITB(x, b)                                                       \
+        HWREGB(((unsigned int)(x) & 0xF0000000) | 0x02000000 |               \
+               (((unsigned int)(x) & 0x000FFFFF) << 5) | ((b) << 2))
+
+#define TRUE    1
+#define FALSE   0
+
+#endif // __HW_TYPES_H__