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diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h
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+/*
+ * OMAP2xxx Clock Management (CM) register definitions
+ *
+ * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
+ * Copyright (C) 2007-2010 Nokia Corporation
+ * Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * The CM hardware modules on the OMAP2/3 are quite similar to each
+ * other. The CM modules/instances on OMAP4 are quite different, so
+ * they are handled in a separate file.
+ */
+#ifndef __ARCH_ASM_MACH_OMAP2_CM2XXX_H
+#define __ARCH_ASM_MACH_OMAP2_CM2XXX_H
+
+#include "prcm-common.h"
+#include "cm2xxx_3xxx.h"
+
+#define OMAP2420_CM_REGADDR(module, reg) \
+ OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg))
+#define OMAP2430_CM_REGADDR(module, reg) \
+ OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg))
+
+/*
+ * Module specific CM register offsets from CM_BASE + domain offset
+ * Use cm_{read,write}_mod_reg() with these registers.
+ * These register offsets generally appear in more than one PRCM submodule.
+ */
+
+/* OMAP2-specific register offsets */
+
+#define OMAP24XX_CM_FCLKEN2 0x0004
+#define OMAP24XX_CM_ICLKEN4 0x001c
+#define OMAP24XX_CM_AUTOIDLE4 0x003c
+#define OMAP24XX_CM_IDLEST4 0x002c
+
+/* CM_IDLEST bit field values to indicate deasserted IdleReq */
+
+#define OMAP24XX_CM_IDLEST_VAL 0
+
+
+/* Clock management domain register get/set */
+
+#ifndef __ASSEMBLER__
+
+extern void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask);
+extern void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask);
+
+extern void omap2xxx_cm_set_dpll_disable_autoidle(void);
+extern void omap2xxx_cm_set_dpll_auto_low_power_stop(void);
+
+extern void omap2xxx_cm_set_apll54_disable_autoidle(void);
+extern void omap2xxx_cm_set_apll54_auto_low_power_stop(void);
+extern void omap2xxx_cm_set_apll96_disable_autoidle(void);
+extern void omap2xxx_cm_set_apll96_auto_low_power_stop(void);
+
+extern bool omap2xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask);
+extern int omap2xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id,
+ u8 idlest_shift);
+extern int omap2xxx_cm_split_idlest_reg(void __iomem *idlest_reg,
+ s16 *prcm_inst, u8 *idlest_reg_id);
+
+extern int __init omap2xxx_cm_init(void);
+
+#endif
+
+#endif