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diff --git a/include/psci.h b/include/psci.h
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+/*
+ * Copyright (c) 2013, ARM Limited. All rights reserved.
+ *
+ * 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 ARM 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 HOLDER 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 __PSCI_H__
+#define __PSCI_H__
+
+/*******************************************************************************
+ * Defines for runtime services func ids
+ ******************************************************************************/
+#define PSCI_VERSION			0x84000000
+#define PSCI_CPU_SUSPEND_AARCH32	0x84000001
+#define PSCI_CPU_SUSPEND_AARCH64	0xc4000001
+#define PSCI_CPU_OFF			0x84000002
+#define PSCI_CPU_ON_AARCH32		0x84000003
+#define PSCI_CPU_ON_AARCH64		0xc4000003
+#define PSCI_AFFINITY_INFO_AARCH32	0x84000004
+#define PSCI_AFFINITY_INFO_AARCH64	0xc4000004
+#define PSCI_MIG_AARCH32		0x84000005
+#define PSCI_MIG_AARCH64		0xc4000005
+#define PSCI_MIG_INFO_TYPE		0x84000006
+#define PSCI_MIG_INFO_UP_CPU_AARCH32	0x84000007
+#define PSCI_MIG_INFO_UP_CPU_AARCH64	0xc4000007
+#define PSCI_SYSTEM_OFF		0x84000008
+#define PSCI_SYSTEM_RESET		0x84000009
+
+/*******************************************************************************
+ * PSCI Migrate and friends
+ ******************************************************************************/
+#define PSCI_TOS_UP_MIG_CAP	0
+#define PSCI_TOS_NOT_UP_MIG_CAP	1
+#define PSCI_TOS_NOT_PRESENT	2
+
+/*******************************************************************************
+ * PSCI CPU_SUSPEND 'power_state' parameter specific defines
+ ******************************************************************************/
+#define PSTATE_ID_SHIFT		15
+#define PSTATE_TYPE_SHIFT	16
+#define PSTATE_AFF_LVL_SHIFT	25
+
+#define PSTATE_ID_MASK		0xffff
+#define PSTATE_TYPE_MASK	0x1
+#define PSTATE_AFF_LVL_MASK	0x3
+
+#define psci_get_pstate_id(pstate)	(pstate >> PSTATE_ID_SHIFT) & \
+					PSTATE_ID_MASK
+#define psci_get_pstate_type(pstate)	(pstate >> PSTATE_TYPE_SHIFT) & \
+					PSTATE_TYPE_MASK
+#define psci_get_pstate_afflvl(pstate)	(pstate >> PSTATE_AFF_LVL_SHIFT) & \
+					PSTATE_AFF_LVL_MASK
+
+/*******************************************************************************
+ * PSCI version
+ ******************************************************************************/
+#define PSCI_MAJOR_VER		(0 << 16)
+#define PSCI_MINOR_VER		0x2
+
+/*******************************************************************************
+ * PSCI error codes
+ ******************************************************************************/
+#define PSCI_E_SUCCESS		0
+#define PSCI_E_NOT_SUPPORTED	-1
+#define PSCI_E_INVALID_PARAMS	-2
+#define PSCI_E_DENIED		-3
+#define PSCI_E_ALREADY_ON	-4
+#define PSCI_E_ON_PENDING	-5
+#define PSCI_E_INTERN_FAIL	-6
+#define PSCI_E_NOT_PRESENT	-7
+#define PSCI_E_DISABLED		-8
+
+/*******************************************************************************
+ * PSCI affinity state related constants. An affinity instance could be present
+ * or absent physically to cater for asymmetric topologies. If present then it
+ * could in one of the 4 further defined states.
+ ******************************************************************************/
+#define PSCI_STATE_SHIFT	1
+#define PSCI_STATE_MASK		0x7
+#define psci_get_state(x)	(x >> PSCI_STATE_SHIFT) & PSCI_STATE_MASK
+#define psci_set_state(x,y)	x &= ~(PSCI_STATE_MASK << PSCI_STATE_SHIFT); \
+				x |= (y & PSCI_STATE_MASK) << PSCI_STATE_SHIFT;
+
+#define PSCI_AFF_ABSENT		0x0
+#define PSCI_AFF_PRESENT	0x1
+#define PSCI_STATE_OFF		0x0
+#define PSCI_STATE_ON_PENDING	0x1
+#define PSCI_STATE_SUSPEND	0x2
+#define PSCI_STATE_ON		0x3
+
+/* Number of affinity instances whose state this psci imp. can track */
+#define PSCI_NUM_AFFS		32ull
+
+#ifndef __ASSEMBLY__
+/*******************************************************************************
+ * Structure populated by platform specific code to export routines which
+ * perform common low level pm functions
+ ******************************************************************************/
+typedef struct {
+	int (*affinst_standby)(unsigned int);
+	int (*affinst_on)(unsigned long,
+			  unsigned long,
+			  unsigned long,
+			  unsigned int,
+			  unsigned int);
+	int (*affinst_off)(unsigned long, unsigned int, unsigned int);
+	int (*affinst_suspend)(unsigned long,
+			       unsigned long,
+			       unsigned long,
+			       unsigned int,
+			       unsigned int);
+	int (*affinst_on_finish)(unsigned long, unsigned int, unsigned int);
+	int (*affinst_suspend_finish)(unsigned long,
+				      unsigned int,
+				      unsigned int);
+} plat_pm_ops;
+
+/*******************************************************************************
+ * Function & Data prototypes
+ ******************************************************************************/
+extern unsigned int psci_version(void);
+extern int psci_cpu_on(unsigned long,
+		       unsigned long,
+		       unsigned long);
+extern int __psci_cpu_suspend(unsigned int, unsigned long, unsigned long);
+extern int __psci_cpu_off(void);
+extern int psci_affinity_info(unsigned long, unsigned int);
+extern int psci_migrate(unsigned int);
+extern unsigned int psci_migrate_info_type(void);
+extern unsigned long psci_migrate_info_up_cpu(void);
+extern void psci_system_off(void);
+extern void psci_system_reset(void);
+extern int psci_cpu_on(unsigned long,
+		       unsigned long,
+		       unsigned long);
+extern void psci_aff_on_finish_entry(void);
+extern void psci_aff_suspend_finish_entry(void);
+extern void psci_setup(unsigned long);
+#endif /*__ASSEMBLY__*/
+
+
+#endif /* __PSCI_H__ */