diff --git a/bl1/bl1_fwu.c b/bl1/bl1_fwu.c
index 49e4e8e25cb4f814278f7216b5cf3eb7dc879679..25be57708f7029820f9bc4639cc828c7fe83de1f 100644
--- a/bl1/bl1_fwu.c
+++ b/bl1/bl1_fwu.c
@@ -24,12 +24,12 @@
  * Function declarations.
  */
 static int bl1_fwu_image_copy(unsigned int image_id,
-			uintptr_t image_addr,
+			uintptr_t image_src,
 			unsigned int block_size,
 			unsigned int image_size,
 			unsigned int flags);
 static int bl1_fwu_image_auth(unsigned int image_id,
-			uintptr_t image_addr,
+			uintptr_t image_src,
 			unsigned int image_size,
 			unsigned int flags);
 static int bl1_fwu_image_execute(unsigned int image_id,
@@ -50,7 +50,7 @@ __dead2 static void bl1_fwu_done(void *client_cookie, void *reserved);
 static unsigned int sec_exec_image_id = INVALID_IMAGE_ID;
 
 /* Authentication status of each image. */
-extern unsigned int auth_img_flags[];
+extern unsigned int auth_img_flags[MAX_NUMBER_IDS];
 
 /*******************************************************************************
  * Top level handler for servicing FWU SMCs.
diff --git a/bl1/tbbr/tbbr_img_desc.c b/bl1/tbbr/tbbr_img_desc.c
index f2ed1a1ca8f0371f49414ef29f7883491b30e70f..44f58d3fa5427b6b748a43121c8cd7f59f4443da 100644
--- a/bl1/tbbr/tbbr_img_desc.c
+++ b/bl1/tbbr/tbbr_img_desc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -7,6 +7,7 @@
 #include <bl1.h>
 #include <bl_common.h>
 #include <platform_def.h>
+#include <tbbr/tbbr_img_desc.h>
 
 image_desc_t bl1_tbbr_image_descs[] = {
     {
diff --git a/bl2/bl2_image_load.c b/bl2/bl2_image_load.c
index d5d28a548d84d31d48b496a36e2851fd37c1bf18..d22e9ce4d508b8194b2f92cb939b8d63b2cfcf35 100644
--- a/bl2/bl2_image_load.c
+++ b/bl2/bl2_image_load.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -182,7 +182,7 @@ static int load_bl33(bl31_params_t *bl2_to_bl31_params)
  * This function loads SCP_BL2/BL3x images and returns the ep_info for
  * the next executable image.
  ******************************************************************************/
-entry_point_info_t *bl2_load_images(void)
+struct entry_point_info *bl2_load_images(void)
 {
 	bl31_params_t *bl2_to_bl31_params;
 	entry_point_info_t *bl31_ep_info;
diff --git a/bl2/bl2_image_load_v2.c b/bl2/bl2_image_load_v2.c
index d95c6b28229fc4c11c319205f17184bb737cbcad..0f40785d4cb7831d5318623e9e9bc908950e2ee1 100644
--- a/bl2/bl2_image_load_v2.c
+++ b/bl2/bl2_image_load_v2.c
@@ -21,7 +21,7 @@
  * This function loads SCP_BL2/BL3x images and returns the ep_info for
  * the next executable image.
  ******************************************************************************/
-entry_point_info_t *bl2_load_images(void)
+struct entry_point_info *bl2_load_images(void)
 {
 	bl_params_t *bl2_to_next_bl_params;
 	bl_load_info_t *bl2_load_info;
diff --git a/bl32/tsp/tsp_private.h b/bl32/tsp/tsp_private.h
index b11570cc037d344440994cb1faf0406791c82ea9..dd65a5fbe5835ee79d4e0d25a0fdb73ea3409ea3 100644
--- a/bl32/tsp/tsp_private.h
+++ b/bl32/tsp/tsp_private.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -62,7 +62,7 @@ CASSERT(TSP_ARGS_SIZE == sizeof(tsp_args_t), assert_sp_args_size_mismatch);
 
 void tsp_get_magic(uint64_t args[4]);
 
-tsp_args_t *tsp_cpu_resume_main(uint64_t arg0,
+tsp_args_t *tsp_cpu_resume_main(uint64_t max_off_pwrlvl,
 				uint64_t arg1,
 				uint64_t arg2,
 				uint64_t arg3,
@@ -106,7 +106,47 @@ extern work_statistics_t tsp_stats[PLATFORM_CORE_COUNT];
 /* Vector table of jumps */
 extern tsp_vectors_t tsp_vector_table;
 
+/* functions */
+int32_t tsp_common_int_handler(void);
+int32_t tsp_handle_preemption(void);
+
+tsp_args_t *tsp_abort_smc_handler(uint64_t func,
+				  uint64_t arg1,
+				  uint64_t arg2,
+				  uint64_t arg3,
+				  uint64_t arg4,
+				  uint64_t arg5,
+				  uint64_t arg6,
+				  uint64_t arg7);
+
+tsp_args_t *tsp_smc_handler(uint64_t func,
+			       uint64_t arg1,
+			       uint64_t arg2,
+			       uint64_t arg3,
+			       uint64_t arg4,
+			       uint64_t arg5,
+			       uint64_t arg6,
+			       uint64_t arg7);
+
+tsp_args_t *tsp_system_reset_main(uint64_t arg0,
+				uint64_t arg1,
+				uint64_t arg2,
+				uint64_t arg3,
+				uint64_t arg4,
+				uint64_t arg5,
+				uint64_t arg6,
+				uint64_t arg7);
+
+tsp_args_t *tsp_system_off_main(uint64_t arg0,
+				uint64_t arg1,
+				uint64_t arg2,
+				uint64_t arg3,
+				uint64_t arg4,
+				uint64_t arg5,
+				uint64_t arg6,
+				uint64_t arg7);
 
+uint64_t tsp_main(void);
 #endif /* __ASSEMBLY__ */
 
 #endif /* __TSP_PRIVATE_H__ */
diff --git a/drivers/auth/auth_mod.c b/drivers/auth/auth_mod.c
index 1cea60b220deab682fa2449ab64383e3bcc03361..eb537b66a1065343f066d8d92d8888137d81b7ae 100644
--- a/drivers/auth/auth_mod.c
+++ b/drivers/auth/auth_mod.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -30,7 +30,7 @@
 
 /* Pointer to CoT */
 extern const auth_img_desc_t *const cot_desc_ptr;
-extern unsigned int auth_img_flags[];
+extern unsigned int auth_img_flags[MAX_NUMBER_IDS];
 
 static int cmp_auth_param_type_desc(const auth_param_type_desc_t *a,
 		const auth_param_type_desc_t *b)
diff --git a/drivers/auth/crypto_mod.c b/drivers/auth/crypto_mod.c
index 3b3e3ac490f836f1e4ff4c2e5c70134592ffdc2f..4cd05506b2cfb0d9a92b2bb56e16ab8bf369517f 100644
--- a/drivers/auth/crypto_mod.c
+++ b/drivers/auth/crypto_mod.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -9,7 +9,6 @@
 #include <debug.h>
 
 /* Variable exported by the crypto library through REGISTER_CRYPTO_LIB() */
-extern const crypto_lib_desc_t crypto_lib_desc;
 
 /*
  * The crypto module is responsible for verifying digital signatures and hashes.
diff --git a/drivers/auth/mbedtls/mbedtls_common.c b/drivers/auth/mbedtls/mbedtls_common.c
index 205c2432afd404cf55e2a5de0a68371f00864192..c048d005aae395f580dd4f60a7441b596bdf5ffc 100644
--- a/drivers/auth/mbedtls/mbedtls_common.c
+++ b/drivers/auth/mbedtls/mbedtls_common.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -10,6 +10,7 @@
 #include <mbedtls/memory_buffer_alloc.h>
 #include <mbedtls/platform.h>
 #include <mbedtls_config.h>
+#include <mbedtls_common.h>
 
 /*
  * mbed TLS heap
diff --git a/include/bl2/bl2.h b/include/bl2/bl2.h
index f2bd07ef4658ca6eb841ce78a38fea896885708e..89ff06eaed1934d7ab1c5fdf2be418132de623a0 100644
--- a/include/bl2/bl2.h
+++ b/include/bl2/bl2.h
@@ -7,9 +7,6 @@
 #ifndef BL2_H__
 #define BL2_H__
 
-struct entry_point_info;
-
 void bl2_main(void);
-struct entry_point_info *bl2_load_images(void);
 
 #endif /* BL2_H__ */
diff --git a/include/common/tbbr/tbbr_img_def.h b/include/common/tbbr/tbbr_img_def.h
index 060198bc149a506ed09210b3541e9eb2a81fcd9a..273abbea060b3f961d9db3f70a8faa067b58ed77 100644
--- a/include/common/tbbr/tbbr_img_def.h
+++ b/include/common/tbbr/tbbr_img_def.h
@@ -75,4 +75,7 @@
 /* NT_FW_CONFIG */
 #define NT_FW_CONFIG_ID		27
 
+/* Define size of the array */
+#define MAX_NUMBER_IDS			28
+
 #endif /* __TBBR_IMG_DEF_H__ */
diff --git a/include/drivers/auth/auth_mod.h b/include/drivers/auth/auth_mod.h
index bd65098036d2e5ce5d8be4f8ef16b87ca6c13972..bb3b8f9022b233c1a77fba57527b6d8af44d00c3 100644
--- a/include/drivers/auth/auth_mod.h
+++ b/include/drivers/auth/auth_mod.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -12,6 +12,7 @@
 #include <auth_common.h>
 #include <cot_def.h>
 #include <img_parser_mod.h>
+#include <tbbr_img_def.h>
 
 /*
  * Image flags
@@ -41,7 +42,10 @@ int auth_mod_verify_img(unsigned int img_id,
 #define REGISTER_COT(_cot) \
 	const auth_img_desc_t *const cot_desc_ptr = \
 			(const auth_img_desc_t *const)&_cot[0]; \
-	unsigned int auth_img_flags[sizeof(_cot)/sizeof(_cot[0])]
+	unsigned int auth_img_flags[MAX_NUMBER_IDS]
+
+extern const auth_img_desc_t *const cot_desc_ptr;
+extern unsigned int auth_img_flags[MAX_NUMBER_IDS];
 
 #endif /* TRUSTED_BOARD_BOOT */
 
diff --git a/include/drivers/auth/crypto_mod.h b/include/drivers/auth/crypto_mod.h
index 08884ab2218a55ba80ad79e170c6e1689f7dad9f..f9b44d1c0fe1c715328f29575372ff2d02d27232 100644
--- a/include/drivers/auth/crypto_mod.h
+++ b/include/drivers/auth/crypto_mod.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -43,7 +43,7 @@ typedef struct crypto_lib_desc_s {
 void crypto_mod_init(void);
 int crypto_mod_verify_signature(void *data_ptr, unsigned int data_len,
 				void *sig_ptr, unsigned int sig_len,
-				void *sig_alg, unsigned int sig_alg_len,
+				void *sig_alg_ptr, unsigned int sig_alg_len,
 				void *pk_ptr, unsigned int pk_len);
 int crypto_mod_verify_hash(void *data_ptr, unsigned int data_len,
 			   void *digest_info_ptr, unsigned int digest_info_len);
@@ -57,4 +57,6 @@ int crypto_mod_verify_hash(void *data_ptr, unsigned int data_len,
 		.verify_hash = _verify_hash \
 	}
 
+extern const crypto_lib_desc_t crypto_lib_desc;
+
 #endif /* __CRYPTO_MOD_H__ */
diff --git a/include/drivers/auth/img_parser_mod.h b/include/drivers/auth/img_parser_mod.h
index 347ed621cf149d99ccb569e473ca894287ef5d4c..eaf3e6e7abf164cc668406d24a9954a278ca9eef 100644
--- a/include/drivers/auth/img_parser_mod.h
+++ b/include/drivers/auth/img_parser_mod.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -44,10 +44,10 @@ typedef struct img_parser_lib_desc_s {
 /* Exported functions */
 void img_parser_init(void);
 int img_parser_check_integrity(img_type_t img_type,
-		void *img, unsigned int img_len);
+		void *img_ptr, unsigned int img_len);
 int img_parser_get_auth_param(img_type_t img_type,
 		const auth_param_type_desc_t *type_desc,
-		void *img, unsigned int img_len,
+		void *img_ptr, unsigned int img_len,
 		void **param_ptr, unsigned int *param_len);
 
 /* Macro to register an image parser library */
diff --git a/plat/arm/board/fvp/fvp_private.h b/plat/arm/board/fvp/fvp_private.h
index c5cd07d14b7ba9b99fad583ba62eef097305fbe7..16f10a22f5e3ea9b333fb1b9a1ec12bd410d2684 100644
--- a/plat/arm/board/fvp/fvp_private.h
+++ b/plat/arm/board/fvp/fvp_private.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -18,6 +18,7 @@ void fvp_config_setup(void);
 void fvp_interconnect_init(void);
 void fvp_interconnect_enable(void);
 void fvp_interconnect_disable(void);
+void tsp_early_platform_setup(void);
 
 
 #endif /* __FVP_PRIVATE_H__ */
diff --git a/plat/arm/common/arm_bl1_fwu.c b/plat/arm/common/arm_bl1_fwu.c
index 1305934c8bb7bed5c22fd5f40eb7d1d9159d5bb4..f2be47792b2130324a9d9efe4016604d1d0b4140 100644
--- a/plat/arm/common/arm_bl1_fwu.c
+++ b/plat/arm/common/arm_bl1_fwu.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -9,6 +9,7 @@
 #include <debug.h>
 #include <errno.h>
 #include <plat_arm.h>
+#include <platform.h>
 #include <platform_def.h>
 #include <tbbr_img_desc.h>
 #include <utils.h>
@@ -19,7 +20,7 @@ typedef struct bl1_mem_info {
 	unsigned int mem_size;
 } bl1_mem_info_t;
 
-bl1_mem_info_t fwu_addr_map_secure[] = {
+static bl1_mem_info_t fwu_addr_map_secure[] = {
 	{
 		.mem_base = ARM_SHARED_RAM_BASE,
 		.mem_size = ARM_SHARED_RAM_SIZE
@@ -29,7 +30,7 @@ bl1_mem_info_t fwu_addr_map_secure[] = {
 	}
 };
 
-bl1_mem_info_t fwu_addr_map_non_secure[] = {
+static bl1_mem_info_t fwu_addr_map_non_secure[] = {
 	{
 		.mem_base = ARM_NS_DRAM1_BASE,
 		.mem_size = ARM_NS_DRAM1_SIZE
diff --git a/plat/arm/common/arm_dyn_cfg_helpers.c b/plat/arm/common/arm_dyn_cfg_helpers.c
index cfcbf2a2a891bf9749d6240f7b6eae75ae9bc17f..9ba51a3e1b2358644a82c5892f96ca760c75091f 100644
--- a/plat/arm/common/arm_dyn_cfg_helpers.c
+++ b/plat/arm/common/arm_dyn_cfg_helpers.c
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#include <arm_dyn_cfg_helpers.h>
 #include <assert.h>
 #include <desc_image_load.h>
 #include <fdt_wrappers.h>
diff --git a/plat/arm/css/drivers/scp/css_pm_scmi.c b/plat/arm/css/drivers/scp/css_pm_scmi.c
index f8bc20c30eace273e082f0aadcac85eb4888b21b..c8ce05343a2b5898fc68cea61c36f3c37018e05c 100644
--- a/plat/arm/css/drivers/scp/css_pm_scmi.c
+++ b/plat/arm/css/drivers/scp/css_pm_scmi.c
@@ -76,7 +76,7 @@ ARM_INSTANTIATE_LOCK;
  * Helper function to suspend a CPU power domain and its parent power domains
  * if applicable.
  */
-void css_scp_suspend(const psci_power_state_t *target_state)
+void css_scp_suspend(const struct psci_power_state *target_state)
 {
 	int lvl, ret;
 	uint32_t scmi_pwr_state = 0;
diff --git a/plat/arm/css/drivers/scp/css_pm_scpi.c b/plat/arm/css/drivers/scp/css_pm_scpi.c
index 545c3fbe60eb79a8518734487e8c63296e52ba84..23fd80ee9336ccfe4eaee73afb96c921f40682f7 100644
--- a/plat/arm/css/drivers/scp/css_pm_scpi.c
+++ b/plat/arm/css/drivers/scp/css_pm_scpi.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -19,7 +19,7 @@
 /*
  * Helper function to inform power down state to SCP.
  */
-void css_scp_suspend(const psci_power_state_t *target_state)
+void css_scp_suspend(const struct psci_power_state *target_state)
 {
 	uint32_t cluster_state = scpi_power_on;
 	uint32_t system_state = scpi_power_on;
diff --git a/services/spd/tspd/tspd_private.h b/services/spd/tspd/tspd_private.h
index 8fadb7a5ac46e4b2993ac64d5b4d7c28f96f87fd..a63daff1086bce8cefda82ab535047c798480a5c 100644
--- a/services/spd/tspd/tspd_private.h
+++ b/services/spd/tspd/tspd_private.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -206,7 +206,7 @@ extern const spd_pm_ops_t tspd_pm;
 /*******************************************************************************
  * Forward declarations
  ******************************************************************************/
-struct tsp_vectors;
+typedef struct tsp_vectors tsp_vectors_t;
 
 /*******************************************************************************
  * Function & Data prototypes
@@ -215,14 +215,26 @@ uint64_t tspd_enter_sp(uint64_t *c_rt_ctx);
 void __dead2 tspd_exit_sp(uint64_t c_rt_ctx, uint64_t ret);
 uint64_t tspd_synchronous_sp_entry(tsp_context_t *tsp_ctx);
 void __dead2 tspd_synchronous_sp_exit(tsp_context_t *tsp_ctx, uint64_t ret);
-void tspd_init_tsp_ep_state(struct entry_point_info *tsp_ep,
+void tspd_init_tsp_ep_state(struct entry_point_info *tsp_entry_point,
 				uint32_t rw,
 				uint64_t pc,
 				tsp_context_t *tsp_ctx);
 int tspd_abort_preempted_smc(tsp_context_t *tsp_ctx);
 
+uint64_t tspd_smc_handler(uint32_t smc_fid,
+			 uint64_t x1,
+			 uint64_t x2,
+			 uint64_t x3,
+			 uint64_t x4,
+			 void *cookie,
+			 void *handle,
+			 uint64_t flags);
+
+int32_t tspd_setup(void);
+uint64_t tspd_handle_sp_preemption(void *handle);
+
 extern tsp_context_t tspd_sp_context[TSPD_CORE_COUNT];
-extern struct tsp_vectors *tsp_vectors;
+extern tsp_vectors_t *tsp_vectors;
 #endif /*__ASSEMBLY__*/
 
 #endif /* __TSPD_PRIVATE_H__ */