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diff --git a/arch/arm/mach-bcmring/include/csp/reg.h b/arch/arm/mach-bcmring/include/csp/reg.h
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+/*****************************************************************************
+* Copyright 2003 - 2008 Broadcom Corporation. All rights reserved.
+*
+* Unless you and Broadcom execute a separate written software license
+* agreement governing use of this software, this software is licensed to you
+* under the terms of the GNU General Public License version 2, available at
+* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
+*
+* Notwithstanding the above, under no circumstances may you combine this
+* software in any way with any other Broadcom software provided under a
+* license other than the GPL, without Broadcom's express prior written
+* consent.
+*****************************************************************************/
+
+/****************************************************************************/
+/**
+* @file reg.h
+*
+* @brief Generic register defintions used in CSP
+*/
+/****************************************************************************/
+
+#ifndef CSP_REG_H
+#define CSP_REG_H
+
+/* ---- Include Files ---------------------------------------------------- */
+
+#include <csp/stdint.h>
+
+/* ---- Public Constants and Types --------------------------------------- */
+
+#define __REG32(x) (*((volatile uint32_t *)(x)))
+#define __REG16(x) (*((volatile uint16_t *)(x)))
+#define __REG8(x) (*((volatile uint8_t *) (x)))
+
+/* Macros used to define a sequence of reserved registers. The start / end */
+/* are byte offsets in the particular register definition, with the "end" */
+/* being the offset of the next un-reserved register. E.g. if offsets */
+/* 0x10 through to 0x1f are reserved, then this reserved area could be */
+/* specified as follows. */
+/* typedef struct */
+/* { */
+/* uint32_t reg1; offset 0x00 */
+/* uint32_t reg2; offset 0x04 */
+/* uint32_t reg3; offset 0x08 */
+/* uint32_t reg4; offset 0x0c */
+/* REG32_RSVD(0x10, 0x20); */
+/* uint32_t reg5; offset 0x20 */
+/* ... */
+/* } EXAMPLE_REG_t; */
+#define REG8_RSVD(start, end) uint8_t rsvd_##start[(end - start) / sizeof(uint8_t)]
+#define REG16_RSVD(start, end) uint16_t rsvd_##start[(end - start) / sizeof(uint16_t)]
+#define REG32_RSVD(start, end) uint32_t rsvd_##start[(end - start) / sizeof(uint32_t)]
+
+/* ---- Public Variable Externs ------------------------------------------ */
+/* ---- Public Function Prototypes --------------------------------------- */
+
+/* Note: When protecting multiple statements, the REG_LOCAL_IRQ_SAVE and */
+/* REG_LOCAL_IRQ_RESTORE must be enclosed in { } to allow the */
+/* flags variable to be declared locally. */
+/* e.g. */
+/* statement1; */
+/* { */
+/* REG_LOCAL_IRQ_SAVE; */
+/* <multiple statements here> */
+/* REG_LOCAL_IRQ_RESTORE; */
+/* } */
+/* statement2; */
+/* */
+
+#if defined(__KERNEL__) && !defined(STANDALONE)
+#include <mach/hardware.h>
+#include <linux/interrupt.h>
+
+#define REG_LOCAL_IRQ_SAVE HW_DECLARE_SPINLOCK(reg32) \
+ unsigned long flags; HW_IRQ_SAVE(reg32, flags)
+
+#define REG_LOCAL_IRQ_RESTORE HW_IRQ_RESTORE(reg32, flags)
+
+#else
+
+#define REG_LOCAL_IRQ_SAVE
+#define REG_LOCAL_IRQ_RESTORE
+
+#endif
+
+static inline void reg32_modify_and(volatile uint32_t *reg, uint32_t value)
+{
+ REG_LOCAL_IRQ_SAVE;
+ *reg &= value;
+ REG_LOCAL_IRQ_RESTORE;
+}
+
+static inline void reg32_modify_or(volatile uint32_t *reg, uint32_t value)
+{
+ REG_LOCAL_IRQ_SAVE;
+ *reg |= value;
+ REG_LOCAL_IRQ_RESTORE;
+}
+
+static inline void reg32_modify_mask(volatile uint32_t *reg, uint32_t mask,
+ uint32_t value)
+{
+ REG_LOCAL_IRQ_SAVE;
+ *reg = (*reg & mask) | value;
+ REG_LOCAL_IRQ_RESTORE;
+}
+
+static inline void reg32_write(volatile uint32_t *reg, uint32_t value)
+{
+ *reg = value;
+}
+
+#endif /* CSP_REG_H */
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