diff --git a/.checkpatch.conf b/.checkpatch.conf
index e92b96f..63bdf7b 100644
--- a/.checkpatch.conf
+++ b/.checkpatch.conf
@@ -36,6 +36,10 @@
 # This is not Linux so don't expect a Linux tree!
 --no-tree
 
+# The Linux kernel expects the SPDX license tag in the first line of each file.
+# We don't follow this in the Trusted Firmware.
+--ignore SPDX_LICENSE_TAG
+
 # This clarifes the lines indications in the report.
 #
 # E.g.:
diff --git a/Makefile b/Makefile
index 79f5253..1708a4c 100644
--- a/Makefile
+++ b/Makefile
@@ -377,6 +377,16 @@
 $(error "BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is enabled")
 endif
 
+# SMC Calling Convention checks
+ifneq (${SMCCC_MAJOR_VERSION},1)
+    ifneq (${SPD},none)
+        $(error "SMC Calling Convention 1.X must be used with SPDs")
+    endif
+    ifeq (${ARCH},aarch32)
+        $(error "Only SMCCC 1.X is supported in AArch32 mode.")
+    endif
+endif
+
 ################################################################################
 # Process platform overrideable behaviour
 ################################################################################
@@ -526,6 +536,7 @@
 
 $(eval $(call assert_numeric,ARM_ARCH_MAJOR))
 $(eval $(call assert_numeric,ARM_ARCH_MINOR))
+$(eval $(call assert_numeric,SMCCC_MAJOR_VERSION))
 
 ################################################################################
 # Add definitions to the cpp preprocessor based on the current build options.
@@ -562,6 +573,7 @@
 $(eval $(call add_define,PSCI_EXTENDED_STATE_ID))
 $(eval $(call add_define,RESET_TO_BL31))
 $(eval $(call add_define,SEPARATE_CODE_AND_RODATA))
+$(eval $(call add_define,SMCCC_MAJOR_VERSION))
 $(eval $(call add_define,SPD_${SPD}))
 $(eval $(call add_define,SPIN_ON_BL1_EXIT))
 $(eval $(call add_define,TRUSTED_BOARD_BOOT))
diff --git a/bl2/bl2_main.c b/bl2/bl2_main.c
index 41d1745..101eb33 100644
--- a/bl2/bl2_main.c
+++ b/bl2/bl2_main.c
@@ -46,6 +46,7 @@
 	/* Load the subsequent bootloader images. */
 	next_bl_ep_info = bl2_load_images();
 
+#if !BL2_AT_EL3
 #ifdef AARCH32
 	/*
 	 * For AArch32 state BL1 and BL2 share the MMU setup.
@@ -55,8 +56,6 @@
 	disable_mmu_icache_secure();
 #endif /* AARCH32 */
 
-
-#if !BL2_AT_EL3
 	console_flush();
 
 	/*
diff --git a/bl31/aarch64/runtime_exceptions.S b/bl31/aarch64/runtime_exceptions.S
index 60be932..1c3ed3f 100644
--- a/bl31/aarch64/runtime_exceptions.S
+++ b/bl31/aarch64/runtime_exceptions.S
@@ -11,6 +11,7 @@
 #include <interrupt_mgmt.h>
 #include <platform_def.h>
 #include <runtime_svc.h>
+#include <smccc.h>
 
 	.globl	runtime_exceptions
 
@@ -289,6 +290,37 @@
 
 
 	/* ---------------------------------------------------------------------
+	 * This macro takes an argument in x16 that is the index in the
+	 * 'rt_svc_descs_indices' array, checks that the value in the array is
+	 * valid, and loads in x15 the pointer to the handler of that service.
+	 * ---------------------------------------------------------------------
+	 */
+	.macro	load_rt_svc_desc_pointer
+	/* Load descriptor index from array of indices */
+	adr	x14, rt_svc_descs_indices
+	ldrb	w15, [x14, x16]
+
+#if SMCCC_MAJOR_VERSION == 1
+	/* Any index greater than 127 is invalid. Check bit 7. */
+	tbnz	w15, 7, smc_unknown
+#elif SMCCC_MAJOR_VERSION == 2
+	/* Verify that the top 3 bits of the loaded index are 0 (w15 <= 31) */
+	cmp	w15, #31
+	b.hi	smc_unknown
+#endif /* SMCCC_MAJOR_VERSION */
+
+	/*
+	 * Get the descriptor using the index
+	 * x11 = (base + off), w15 = index
+	 *
+	 * handler = (base + off) + (index << log2(size))
+	 */
+	adr	x11, (__RT_SVC_DESCS_START__ + RT_SVC_DESC_HANDLE)
+	lsl	w10, w15, #RT_SVC_SIZE_LOG2
+	ldr	x15, [x11, w10, uxtw]
+	.endm
+
+	/* ---------------------------------------------------------------------
 	 * The following code handles secure monitor calls.
 	 * Depending upon the execution state from where the SMC has been
 	 * invoked, it frees some general purpose registers to perform the
@@ -311,48 +343,63 @@
 	 * now). x6 will point to the context structure (SP_EL3) and x7 will
 	 * contain flags we need to pass to the handler.
 	 *
-	 * Save x4-x29 and sp_el0.  Refer to SMCCC v1.1.
+	 * Save x4-x29 and sp_el0.
 	 */
 	save_x4_to_x29_sp_el0
 
 	mov	x5, xzr
 	mov	x6, sp
 
+#if SMCCC_MAJOR_VERSION == 1
+
 	/* Get the unique owning entity number */
 	ubfx	x16, x0, #FUNCID_OEN_SHIFT, #FUNCID_OEN_WIDTH
 	ubfx	x15, x0, #FUNCID_TYPE_SHIFT, #FUNCID_TYPE_WIDTH
 	orr	x16, x16, x15, lsl #FUNCID_OEN_WIDTH
 
-	adr	x11, (__RT_SVC_DESCS_START__ + RT_SVC_DESC_HANDLE)
+	load_rt_svc_desc_pointer
 
-	/* Load descriptor index from array of indices */
-	adr	x14, rt_svc_descs_indices
-	ldrb	w15, [x14, x16]
+#elif SMCCC_MAJOR_VERSION == 2
+
+	/* Bit 31 must be set */
+	tbz	x0, #FUNCID_TYPE_SHIFT, smc_unknown
 
 	/*
-	 * Restore the saved C runtime stack value which will become the new
-	 * SP_EL0 i.e. EL3 runtime stack. It was saved in the 'cpu_context'
-	 * structure prior to the last ERET from EL3.
+	 * Check MSB of namespace to decide between compatibility/vendor and
+	 * SPCI/SPRT
 	 */
-	ldr	x12, [x6, #CTX_EL3STATE_OFFSET + CTX_RUNTIME_SP]
+	tbz	x0, #(FUNCID_NAMESPACE_SHIFT + 1), compat_or_vendor
+
+	/* Namespaces SPRT and SPCI currently unimplemented */
+	b	smc_unknown
+
+compat_or_vendor:
+
+	/* Namespace is b'00 (compatibility) or b'01 (vendor) */
 
 	/*
-	 * Any index greater than 127 is invalid. Check bit 7 for
-	 * a valid index
+	 * Add the LSB of the namespace (bit [28]) to the OEN [27:24] to create
+	 * a 5-bit index into the rt_svc_descs_indices array.
+	 *
+	 * The low 16 entries of the rt_svc_descs_indices array correspond to
+	 * OENs of the compatibility namespace and the top 16 entries of the
+	 * array are assigned to the vendor namespace descriptor.
 	 */
-	tbnz	w15, 7, smc_unknown
+	ubfx	x16, x0, #FUNCID_OEN_SHIFT, #(FUNCID_OEN_WIDTH + 1)
 
-	/* Switch to SP_EL0 */
-	msr	spsel, #0
+	load_rt_svc_desc_pointer
+
+#endif /* SMCCC_MAJOR_VERSION */
 
 	/*
-	 * Get the descriptor using the index
-	 * x11 = (base + off), x15 = index
-	 *
-	 * handler = (base + off) + (index << log2(size))
+	 * Restore the saved C runtime stack value which will become the new
+	 * SP_EL0 i.e. EL3 runtime stack. It was saved in the 'cpu_context'
+	 * structure prior to the last ERET from EL3.
 	 */
-	lsl	w10, w15, #RT_SVC_SIZE_LOG2
-	ldr	x15, [x11, w10, uxtw]
+	ldr	x12, [x6, #CTX_EL3STATE_OFFSET + CTX_RUNTIME_SP]
+
+	/* Switch to SP_EL0 */
+	msr	spsel, #0
 
 	/*
 	 * Save the SPSR_EL3, ELR_EL3, & SCR_EL3 in case there is a world
diff --git a/bl32/tsp/tsp_interrupt.c b/bl32/tsp/tsp_interrupt.c
index cbfc152..f501338 100644
--- a/bl32/tsp/tsp_interrupt.c
+++ b/bl32/tsp/tsp_interrupt.c
@@ -33,7 +33,7 @@
 
 #if LOG_LEVEL >= LOG_LEVEL_VERBOSE
 	spin_lock(&console_lock);
-	VERBOSE("TSP: cpu 0x%lx sync s-el1 interrupt request from 0x%lx\n",
+	VERBOSE("TSP: cpu 0x%lx sync s-el1 interrupt request from 0x%llx\n",
 		read_mpidr(), elr_el3);
 	VERBOSE("TSP: cpu 0x%lx: %d sync s-el1 interrupt requests,"
 		" %d sync s-el1 interrupt returns\n",
diff --git a/bl32/tsp/tsp_main.c b/bl32/tsp/tsp_main.c
index 0de0ca8..e41b51e 100644
--- a/bl32/tsp/tsp_main.c
+++ b/bl32/tsp/tsp_main.c
@@ -247,7 +247,7 @@
 
 #if LOG_LEVEL >= LOG_LEVEL_INFO
 	spin_lock(&console_lock);
-	INFO("TSP: cpu 0x%lx resumed. maximum off power level %ld\n",
+	INFO("TSP: cpu 0x%lx resumed. maximum off power level %lld\n",
 	     read_mpidr(), max_off_pwrlvl);
 	INFO("TSP: cpu 0x%lx: %d smcs, %d erets %d cpu suspend requests\n",
 		read_mpidr(),
@@ -347,7 +347,7 @@
 	tsp_stats[linear_id].smc_count++;
 	tsp_stats[linear_id].eret_count++;
 
-	INFO("TSP: cpu 0x%lx received %s smc 0x%lx\n", read_mpidr(),
+	INFO("TSP: cpu 0x%lx received %s smc 0x%llx\n", read_mpidr(),
 		((func >> 31) & 1) == 1 ? "fast" : "yielding",
 		func);
 	INFO("TSP: cpu 0x%lx: %d smcs, %d erets\n", read_mpidr(),
diff --git a/common/runtime_svc.c b/common/runtime_svc.c
index de80f30..f997c74 100644
--- a/common/runtime_svc.c
+++ b/common/runtime_svc.c
@@ -26,8 +26,10 @@
 					/ sizeof(rt_svc_desc_t))
 
 /*******************************************************************************
- * Function to invoke the registered `handle` corresponding to the smc_fid.
+ * Function to invoke the registered `handle` corresponding to the smc_fid in
+ * AArch32 mode.
  ******************************************************************************/
+#if SMCCC_MAJOR_VERSION == 1
 uintptr_t handle_runtime_svc(uint32_t smc_fid,
 			     void *cookie,
 			     void *handle,
@@ -53,6 +55,7 @@
 	return rt_svc_descs[index].handle(smc_fid, x1, x2, x3, x4, cookie,
 						handle, flags);
 }
+#endif /* SMCCC_MAJOR_VERSION */
 
 /*******************************************************************************
  * Simple routine to sanity check a runtime service descriptor before using it
@@ -68,12 +71,17 @@
 	if (desc->end_oen >= OEN_LIMIT)
 		return -EINVAL;
 
-	if (desc->call_type != SMC_TYPE_FAST &&
-			desc->call_type != SMC_TYPE_YIELD)
+#if SMCCC_MAJOR_VERSION == 1
+	if ((desc->call_type != SMC_TYPE_FAST) &&
+	    (desc->call_type != SMC_TYPE_YIELD))
 		return -EINVAL;
+#elif SMCCC_MAJOR_VERSION == 2
+	if (desc->is_vendor > 1U)
+		return -EINVAL;
+#endif /* SMCCC_MAJOR_VERSION */
 
 	/* A runtime service having no init or handle function doesn't make sense */
-	if (desc->init == NULL && desc->handle == NULL)
+	if ((desc->init == NULL) && (desc->handle == NULL))
 		return -EINVAL;
 
 	return 0;
@@ -96,7 +104,7 @@
 			(RT_SVC_DECS_NUM < MAX_RT_SVCS));
 
 	/* If no runtime services are implemented then simply bail out */
-	if (RT_SVC_DECS_NUM == 0)
+	if (RT_SVC_DECS_NUM == 0U)
 		return;
 
 	/* Initialise internal variables to invalid state */
@@ -140,11 +148,18 @@
 		 * descriptor which will handle the SMCs for this owning
 		 * entity range.
 		 */
-		start_idx = get_unique_oen(rt_svc_descs[index].start_oen,
-				service->call_type);
-		assert(start_idx < MAX_RT_SVCS);
-		end_idx = get_unique_oen(rt_svc_descs[index].end_oen,
-				service->call_type);
+#if SMCCC_MAJOR_VERSION == 1
+		start_idx = get_unique_oen(service->start_oen,
+					   service->call_type);
+		end_idx = get_unique_oen(service->end_oen,
+					 service->call_type);
+#elif SMCCC_MAJOR_VERSION == 2
+		start_idx = get_rt_desc_idx(service->start_oen,
+					    service->is_vendor);
+		end_idx = get_rt_desc_idx(service->end_oen,
+					  service->is_vendor);
+#endif
+		assert(start_idx <= end_idx);
 		assert(end_idx < MAX_RT_SVCS);
 		for (; start_idx <= end_idx; start_idx++)
 			rt_svc_descs_indices[start_idx] = index;
diff --git a/docs/user-guide.rst b/docs/user-guide.rst
index f8bc4be..aed54a6 100644
--- a/docs/user-guide.rst
+++ b/docs/user-guide.rst
@@ -573,6 +573,11 @@
    pages" section in `Firmware Design`_. This flag is disabled by default and
    affects all BL images.
 
+-  ``SMCCC_MAJOR_VERSION``: Numeric value that indicates the major version of
+   the SMC Calling Convention that the Trusted Firmware supports. The only two
+   allowed values are 1 and 2, and it defaults to 1. The minor version is
+   determined using this value.
+
 -  ``SPD``: Choose a Secure Payload Dispatcher component to be built into TF-A.
    This build option is only valid if ``ARCH=aarch64``. The value should be
    the path to the directory containing the SPD source, relative to
diff --git a/drivers/arm/gic/gic_v3.c b/drivers/arm/gic/gic_v3.c
index 3e802fd..5486817 100644
--- a/drivers/arm/gic/gic_v3.c
+++ b/drivers/arm/gic/gic_v3.c
@@ -8,7 +8,7 @@
 #include <debug.h>
 #include <gic_v3.h>
 
-uintptr_t gicv3_get_rdist(uintptr_t gicr_base, uint64_t mpidr)
+uintptr_t gicv3_get_rdist(uintptr_t gicr_base, u_register_t mpidr)
 {
 	uint32_t  cpu_aff, gicr_aff;
 	uint64_t  gicr_typer;
diff --git a/fdts/fvp-base-gicv3-psci-common.dtsi b/fdts/fvp-base-gicv3-psci-common.dtsi
index 2ef2df8..631c4e3 100644
--- a/fdts/fvp-base-gicv3-psci-common.dtsi
+++ b/fdts/fvp-base-gicv3-psci-common.dtsi
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -228,7 +228,7 @@
 			     <0 63 4>;
 	};
 
-	smb {
+	smb@0,0 {
 		compatible = "simple-bus";
 
 		#address-cells = <2>;
@@ -244,7 +244,7 @@
 	};
 
 	panels {
-		panel@0 {
+		panel {
 			compatible	= "panel";
 			mode		= "XVGA";
 			refresh		= <60>;
diff --git a/fdts/fvp-foundation-motherboard.dtsi b/fdts/fvp-foundation-motherboard.dtsi
index ae7237b..9ee5b64 100644
--- a/fdts/fvp-foundation-motherboard.dtsi
+++ b/fdts/fvp-foundation-motherboard.dtsi
@@ -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
  */
@@ -44,14 +44,14 @@
 			#size-cells = <1>;
 			ranges = <0 3 0 0x200000>;
 
-			v2m_sysreg: sysreg@010000 {
+			v2m_sysreg: sysreg@10000 {
 				compatible = "arm,vexpress-sysreg";
 				reg = <0x010000 0x1000>;
 				gpio-controller;
 				#gpio-cells = <2>;
 			};
 
-			v2m_sysctl: sysctl@020000 {
+			v2m_sysctl: sysctl@20000 {
 				compatible = "arm,sp810", "arm,primecell";
 				reg = <0x020000 0x1000>;
 				clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&v2m_clk24mhz>;
@@ -60,7 +60,7 @@
 				clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
 			};
 
-			v2m_serial0: uart@090000 {
+			v2m_serial0: uart@90000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x090000 0x1000>;
 				interrupts = <0 5 4>;
@@ -68,7 +68,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			v2m_serial1: uart@0a0000 {
+			v2m_serial1: uart@a0000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x0a0000 0x1000>;
 				interrupts = <0 6 4>;
@@ -76,7 +76,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			v2m_serial2: uart@0b0000 {
+			v2m_serial2: uart@b0000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x0b0000 0x1000>;
 				interrupts = <0 7 4>;
@@ -84,7 +84,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			v2m_serial3: uart@0c0000 {
+			v2m_serial3: uart@c0000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x0c0000 0x1000>;
 				interrupts = <0 8 4>;
@@ -92,7 +92,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			wdt@0f0000 {
+			wdt@f0000 {
 				compatible = "arm,sp805", "arm,primecell";
 				reg = <0x0f0000 0x1000>;
 				interrupts = <0 0 4>;
@@ -124,7 +124,7 @@
 				clock-names = "apb_pclk";
 			};
 
-			virtio_block@0130000 {
+			virtio_block@130000 {
 				compatible = "virtio,mmio";
 				reg = <0x130000 0x1000>;
 				interrupts = <0 0x2a 4>;
diff --git a/fdts/rtsm_ve-motherboard-aarch32.dtsi b/fdts/rtsm_ve-motherboard-aarch32.dtsi
index 5afbc1e..7a8af8e 100644
--- a/fdts/rtsm_ve-motherboard-aarch32.dtsi
+++ b/fdts/rtsm_ve-motherboard-aarch32.dtsi
@@ -57,14 +57,14 @@
 			#size-cells = <1>;
 			ranges = <0 3 0 0x200000>;
 
-			v2m_sysreg: sysreg@010000 {
+			v2m_sysreg: sysreg@10000 {
 				compatible = "arm,vexpress-sysreg";
 				reg = <0x010000 0x1000>;
 				gpio-controller;
 				#gpio-cells = <2>;
 			};
 
-			v2m_sysctl: sysctl@020000 {
+			v2m_sysctl: sysctl@20000 {
 				compatible = "arm,sp810", "arm,primecell";
 				reg = <0x020000 0x1000>;
 				clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&v2m_clk24mhz>;
@@ -73,7 +73,7 @@
 				clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
 			};
 
-			aaci@040000 {
+			aaci@40000 {
 				compatible = "arm,pl041", "arm,primecell";
 				reg = <0x040000 0x1000>;
 				interrupts = <11>;
@@ -81,7 +81,7 @@
 				clock-names = "apb_pclk";
 			};
 
-			mmci@050000 {
+			mmci@50000 {
 				compatible = "arm,pl180", "arm,primecell";
 				reg = <0x050000 0x1000>;
 				interrupts = <9 10>;
@@ -93,7 +93,7 @@
 				clock-names = "mclk", "apb_pclk";
 			};
 
-			kmi@060000 {
+			kmi@60000 {
 				compatible = "arm,pl050", "arm,primecell";
 				reg = <0x060000 0x1000>;
 				interrupts = <12>;
@@ -101,7 +101,7 @@
 				clock-names = "KMIREFCLK", "apb_pclk";
 			};
 
-			kmi@070000 {
+			kmi@70000 {
 				compatible = "arm,pl050", "arm,primecell";
 				reg = <0x070000 0x1000>;
 				interrupts = <13>;
@@ -109,7 +109,7 @@
 				clock-names = "KMIREFCLK", "apb_pclk";
 			};
 
-			v2m_serial0: uart@090000 {
+			v2m_serial0: uart@90000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x090000 0x1000>;
 				interrupts = <5>;
@@ -117,7 +117,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			v2m_serial1: uart@0a0000 {
+			v2m_serial1: uart@a0000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x0a0000 0x1000>;
 				interrupts = <6>;
@@ -125,7 +125,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			v2m_serial2: uart@0b0000 {
+			v2m_serial2: uart@b0000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x0b0000 0x1000>;
 				interrupts = <7>;
@@ -133,7 +133,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			v2m_serial3: uart@0c0000 {
+			v2m_serial3: uart@c0000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x0c0000 0x1000>;
 				interrupts = <8>;
@@ -141,7 +141,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			wdt@0f0000 {
+			wdt@f0000 {
 				compatible = "arm,sp805", "arm,primecell";
 				reg = <0x0f0000 0x1000>;
 				interrupts = <0>;
@@ -184,7 +184,7 @@
 				framebuffer = <0x18000000 0x00180000>;
 			};
 
-			virtio_block@0130000 {
+			virtio_block@130000 {
 				compatible = "virtio,mmio";
 				reg = <0x130000 0x1000>;
 				interrupts = <0x2a>;
diff --git a/fdts/rtsm_ve-motherboard.dtsi b/fdts/rtsm_ve-motherboard.dtsi
index 8baa829..486f8a9 100644
--- a/fdts/rtsm_ve-motherboard.dtsi
+++ b/fdts/rtsm_ve-motherboard.dtsi
@@ -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
  */
@@ -56,14 +56,14 @@
 			#size-cells = <1>;
 			ranges = <0 3 0 0x200000>;
 
-			v2m_sysreg: sysreg@010000 {
+			v2m_sysreg: sysreg@10000 {
 				compatible = "arm,vexpress-sysreg";
 				reg = <0x010000 0x1000>;
 				gpio-controller;
 				#gpio-cells = <2>;
 			};
 
-			v2m_sysctl: sysctl@020000 {
+			v2m_sysctl: sysctl@20000 {
 				compatible = "arm,sp810", "arm,primecell";
 				reg = <0x020000 0x1000>;
 				clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&v2m_clk24mhz>;
@@ -72,7 +72,7 @@
 				clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
 			};
 
-			aaci@040000 {
+			aaci@40000 {
 				compatible = "arm,pl041", "arm,primecell";
 				reg = <0x040000 0x1000>;
 				interrupts = <0 11 4>;
@@ -80,7 +80,7 @@
 				clock-names = "apb_pclk";
 			};
 
-			mmci@050000 {
+			mmci@50000 {
 				compatible = "arm,pl180", "arm,primecell";
 				reg = <0x050000 0x1000>;
 				interrupts = <0 9 4 0 10 4>;
@@ -92,7 +92,7 @@
 				clock-names = "mclk", "apb_pclk";
 			};
 
-			kmi@060000 {
+			kmi@60000 {
 				compatible = "arm,pl050", "arm,primecell";
 				reg = <0x060000 0x1000>;
 				interrupts = <0 12 4>;
@@ -100,7 +100,7 @@
 				clock-names = "KMIREFCLK", "apb_pclk";
 			};
 
-			kmi@070000 {
+			kmi@70000 {
 				compatible = "arm,pl050", "arm,primecell";
 				reg = <0x070000 0x1000>;
 				interrupts = <0 13 4>;
@@ -108,7 +108,7 @@
 				clock-names = "KMIREFCLK", "apb_pclk";
 			};
 
-			v2m_serial0: uart@090000 {
+			v2m_serial0: uart@90000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x090000 0x1000>;
 				interrupts = <0 5 4>;
@@ -116,7 +116,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			v2m_serial1: uart@0a0000 {
+			v2m_serial1: uart@a0000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x0a0000 0x1000>;
 				interrupts = <0 6 4>;
@@ -124,7 +124,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			v2m_serial2: uart@0b0000 {
+			v2m_serial2: uart@b0000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x0b0000 0x1000>;
 				interrupts = <0 7 4>;
@@ -132,7 +132,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			v2m_serial3: uart@0c0000 {
+			v2m_serial3: uart@c0000 {
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x0c0000 0x1000>;
 				interrupts = <0 8 4>;
@@ -140,7 +140,7 @@
 				clock-names = "uartclk", "apb_pclk";
 			};
 
-			wdt@0f0000 {
+			wdt@f0000 {
 				compatible = "arm,sp805", "arm,primecell";
 				reg = <0x0f0000 0x1000>;
 				interrupts = <0 0 4>;
@@ -183,14 +183,14 @@
 				framebuffer = <0x18000000 0x00180000>;
 			};
 
-			virtio_block@0130000 {
+			virtio_block@130000 {
 				compatible = "virtio,mmio";
 				reg = <0x130000 0x1000>;
 				interrupts = <0 0x2a 4>;
 			};
 		};
 
-		v2m_fixed_3v3: fixedregulator@0 {
+		v2m_fixed_3v3: fixedregulator {
 			compatible = "regulator-fixed";
 			regulator-name = "3V3";
 			regulator-min-microvolt = <3300000>;
@@ -202,7 +202,7 @@
 			compatible = "arm,vexpress,config-bus", "simple-bus";
 			arm,vexpress,config-bridge = <&v2m_sysreg>;
 
-			v2m_oscclk1: osc@1 {
+			v2m_oscclk1: osc {
 				/* CLCD clock */
 				compatible = "arm,vexpress-osc";
 				arm,vexpress-sysreg,func = <1 1>;
@@ -220,7 +220,7 @@
 			 * };
 			 */
 
-			muxfpga@0 {
+			muxfpga {
 				compatible = "arm,vexpress-muxfpga";
 				arm,vexpress-sysreg,func = <7 0>;
 			};
@@ -243,7 +243,7 @@
 			 * };
 			 */
 
-			dvimode@0 {
+			dvimode {
 				compatible = "arm,vexpress-dvimode";
 				arm,vexpress-sysreg,func = <11 0>;
 			};
diff --git a/include/common/runtime_svc.h b/include/common/runtime_svc.h
index 706c211..b8cf8de 100644
--- a/include/common/runtime_svc.h
+++ b/include/common/runtime_svc.h
@@ -8,8 +8,9 @@
 #define __RUNTIME_SVC_H__
 
 #include <bl_common.h>		/* to include exception types */
+#include <cassert.h>
 #include <smccc_helpers.h>	/* to include SMCCC definitions */
-
+#include <utils_def.h>
 
 /*******************************************************************************
  * Structure definition, typedefs & constants for the runtime service framework
@@ -32,11 +33,20 @@
 
 
 /*
- * The function identifier has 6 bits for the owning entity number and
- * single bit for the type of smc call. When taken together these
- * values limit the maximum number of runtime services to 128.
+ * In SMCCC 1.X, the function identifier has 6 bits for the owning entity number
+ * and a single bit for the type of smc call. When taken together, those values
+ * limit the maximum number of runtime services to 128.
+ *
+ * In SMCCC 2.X the type bit is always 1 and there are only 4 OEN bits in the
+ * compatibility namespace, so the total number of services is 16. The LSB of
+ * namespace is also added to these 4 bits to make space for the vendor service
+ * handler and so the total number of runtime services is 32.
  */
+#if SMCCC_MAJOR_VERSION == 1
 #define MAX_RT_SVCS		128
+#elif SMCCC_MAJOR_VERSION == 2
+#define MAX_RT_SVCS		32
+#endif
 
 #ifndef __ASSEMBLY__
 
@@ -60,24 +70,62 @@
 typedef struct rt_svc_desc {
 	uint8_t start_oen;
 	uint8_t end_oen;
+#if SMCCC_MAJOR_VERSION == 1
 	uint8_t call_type;
+#elif SMCCC_MAJOR_VERSION == 2
+	uint8_t is_vendor;
+#endif
 	const char *name;
 	rt_svc_init_t init;
 	rt_svc_handle_t handle;
 } rt_svc_desc_t;
 
 /*
+ * Convenience macros to declare a service descriptor
+ */
+#if SMCCC_MAJOR_VERSION == 1
+
+#define DECLARE_RT_SVC(_name, _start, _end, _type, _setup, _smch)	\
+	static const rt_svc_desc_t __svc_desc_ ## _name			\
+		__section("rt_svc_descs") __used = {			\
+			.start_oen = _start,				\
+			.end_oen = _end,				\
+			.call_type = _type,				\
+			.name = #_name,					\
+			.init = _setup,					\
+			.handle = _smch					\
+		}
+
+#elif SMCCC_MAJOR_VERSION == 2
+
+#define DECLARE_RT_SVC(_name, _start, _end, _type, _setup, _smch)	\
+	static const rt_svc_desc_t __svc_desc_ ## _name			\
+		__section("rt_svc_descs") __used = {			\
+			.start_oen = _start,				\
+			.end_oen = _end,				\
+			.is_vendor = 0,					\
+			.name = #_name,					\
+			.init = _setup,					\
+			.handle = _smch,				\
+		};							\
+	CASSERT((_type) == SMC_TYPE_FAST, rt_svc_type_check_ ## _name)
+
+/*
- * Convenience macro to declare a service descriptor
+ * The higher 16 entries of the runtime services are used for the vendor
+ * specific descriptor.
  */
-#define DECLARE_RT_SVC(_name, _start, _end, _type, _setup, _smch) \
-	static const rt_svc_desc_t __svc_desc_ ## _name \
-		__section("rt_svc_descs") __used = { \
-			.start_oen = _start, \
-			.end_oen = _end, \
-			.call_type = _type, \
-			.name = #_name, \
-			.init = _setup, \
-			.handle = _smch }
+#define DECLARE_RT_SVC_VENDOR(_setup, _smch)				\
+	static const rt_svc_desc_t __svc_desc_vendor			\
+		__section("rt_svc_descs") __used = {			\
+			.start_oen = 0,					\
+			.end_oen = 15,					\
+			.is_vendor = 1,					\
+			.name = "vendor_rt_svc",			\
+			.init = _setup,					\
+			.handle = _smch,				\
+		}
+
+#endif /* SMCCC_MAJOR_VERSION */
 
 /*
  * Compile time assertions related to the 'rt_svc_desc' structure to:
@@ -96,6 +144,7 @@
 	assert_rt_svc_desc_handle_offset_mismatch);
 
 
+#if SMCCC_MAJOR_VERSION == 1
 /*
  * This macro combines the call type and the owning entity number corresponding
  * to a runtime service to generate a unique owning entity number. This unique
@@ -112,9 +161,22 @@
  * array to invoke the corresponding runtime service handler during SMC
  * handling.
  */
-#define get_unique_oen_from_smc_fid(fid)		\
-	get_unique_oen(((fid) >> FUNCID_OEN_SHIFT),	\
-			((fid) >> FUNCID_TYPE_SHIFT))
+#define get_unique_oen_from_smc_fid(fid)			\
+	get_unique_oen(GET_SMC_OEN(fid), GET_SMC_TYPE(fid))
+
+#elif SMCCC_MAJOR_VERSION == 2
+
+/*
+ * This macro combines the owning entity number corresponding to a runtime
+ * service with one extra bit for the vendor namespace to generate an index into
+ * the 'rt_svc_descs_indices' array. The entry contains the index of the service
+ * descriptor in the 'rt_svc_descs' array.
+ */
+#define get_rt_desc_idx(oen, is_vendor)				\
+	(((uint32_t)(oen) & FUNCID_OEN_MASK) |			\
+	(((uint32_t)(is_vendor) & 1U) << FUNCID_OEN_WIDTH))
+
+#endif
 
 /*******************************************************************************
  * Function & variable prototypes
diff --git a/include/lib/aarch64/arch_helpers.h b/include/lib/aarch64/arch_helpers.h
index 485ed43..c346f79 100644
--- a/include/lib/aarch64/arch_helpers.h
+++ b/include/lib/aarch64/arch_helpers.h
@@ -18,15 +18,15 @@
  *********************************************************************/
 
 #define _DEFINE_SYSREG_READ_FUNC(_name, _reg_name)		\
-static inline uint64_t read_ ## _name(void)			\
+static inline u_register_t read_ ## _name(void)			\
 {								\
-	uint64_t v;						\
+	u_register_t v;						\
 	__asm__ volatile ("mrs %0, " #_reg_name : "=r" (v));	\
 	return v;						\
 }
 
 #define _DEFINE_SYSREG_WRITE_FUNC(_name, _reg_name)			\
-static inline void write_ ## _name(uint64_t v)				\
+static inline void write_ ## _name(u_register_t v)			\
 {									\
 	__asm__ volatile ("msr " #_reg_name ", %0" : : "r" (v));	\
 }
diff --git a/include/lib/smccc.h b/include/lib/smccc.h
index b1d4dea..660c1db 100644
--- a/include/lib/smccc.h
+++ b/include/lib/smccc.h
@@ -9,83 +9,43 @@
 
 #include <utils_def.h>
 
-/*******************************************************************************
- * Bit definitions inside the function id as per the SMC calling convention
- ******************************************************************************/
-#define FUNCID_TYPE_SHIFT		U(31)
-#define FUNCID_CC_SHIFT			U(30)
-#define FUNCID_OEN_SHIFT		U(24)
-#define FUNCID_NUM_SHIFT		U(0)
+#define SMCCC_VERSION_MAJOR_SHIFT	U(16)
+#define SMCCC_VERSION_MAJOR_MASK	U(0x7FFF)
+#define SMCCC_VERSION_MINOR_SHIFT	U(0)
+#define SMCCC_VERSION_MINOR_MASK	U(0xFFFF)
+#define MAKE_SMCCC_VERSION(_major, _minor) \
+	((((uint32_t)(_major) & SMCCC_VERSION_MAJOR_MASK) << \
+						SMCCC_VERSION_MAJOR_SHIFT) \
+	| (((uint32_t)(_minor) & SMCCC_VERSION_MINOR_MASK) << \
+						SMCCC_VERSION_MINOR_SHIFT))
 
-#define FUNCID_TYPE_MASK		U(0x1)
-#define FUNCID_CC_MASK			U(0x1)
-#define FUNCID_OEN_MASK			U(0x3f)
-#define FUNCID_NUM_MASK			U(0xffff)
-
-#define FUNCID_TYPE_WIDTH		U(1)
-#define FUNCID_CC_WIDTH			U(1)
-#define FUNCID_OEN_WIDTH		U(6)
-#define FUNCID_NUM_WIDTH		U(16)
-
-#define GET_SMC_CC(id)			((id >> FUNCID_CC_SHIFT) & \
-					 FUNCID_CC_MASK)
-#define GET_SMC_TYPE(id)		((id >> FUNCID_TYPE_SHIFT) & \
-					 FUNCID_TYPE_MASK)
-
-#define SMC_64				U(1)
-#define SMC_32				U(0)
-#define SMC_OK				U(0)
-#define SMC_UNK				-1
-#define SMC_TYPE_FAST			ULL(1)
-#if !ERROR_DEPRECATED
-#define SMC_TYPE_STD			ULL(0)
+#if SMCCC_MAJOR_VERSION == 1
+# define SMCCC_MINOR_VERSION U(1)
+# include <smccc_v1.h>
+#elif SMCCC_MAJOR_VERSION == 2
+# define SMCCC_MINOR_VERSION U(0)
+# include <smccc_v2.h>
+#else
+# error "Unsupported version of SMCCC."
 #endif
-#define SMC_TYPE_YIELD			U(0)
-#define SMC_PREEMPTED			-2
-/*******************************************************************************
- * Owning entity number definitions inside the function id as per the SMC
- * calling convention
- ******************************************************************************/
-#define OEN_ARM_START			U(0)
-#define OEN_ARM_END			U(0)
-#define OEN_CPU_START			U(1)
-#define OEN_CPU_END			U(1)
-#define OEN_SIP_START			U(2)
-#define OEN_SIP_END			U(2)
-#define OEN_OEM_START			U(3)
-#define OEN_OEM_END			U(3)
-#define OEN_STD_START			U(4)	/* Standard Service Calls */
-#define OEN_STD_END			U(4)
-#define OEN_TAP_START			U(48)	/* Trusted Applications */
-#define OEN_TAP_END			U(49)
-#define OEN_TOS_START			U(50)	/* Trusted OS */
-#define OEN_TOS_END			U(63)
-#define OEN_LIMIT			U(64)
+
+/* Various flags passed to SMC handlers */
+#define SMC_FROM_SECURE		(U(0) << 0)
+#define SMC_FROM_NON_SECURE	(U(1) << 0)
 
 #ifndef __ASSEMBLY__
 
 #include <cassert.h>
 #include <stdint.h>
 
-#define SMCCC_MAJOR_VERSION U(1)
-#define SMCCC_MINOR_VERSION U(1)
-
-#define MAKE_SMCCC_VERSION(_major, _minor) (((_major) << 16) | (_minor))
-
-/* Various flags passed to SMC handlers */
-#define SMC_FROM_SECURE		(U(0) << 0)
-#define SMC_FROM_NON_SECURE	(U(1) << 0)
-
 #define is_caller_non_secure(_f)	(((_f) & SMC_FROM_NON_SECURE) != U(0))
 #define is_caller_secure(_f)		(!is_caller_non_secure(_f))
 
 /* The macro below is used to identify a Standard Service SMC call */
-#define is_std_svc_call(_fid)		((((_fid) >> FUNCID_OEN_SHIFT) & \
-					   FUNCID_OEN_MASK) == OEN_STD_START)
+#define is_std_svc_call(_fid)		(GET_SMC_OEN(_fid) == OEN_STD_START)
 
 /* The macro below is used to identify a Arm Architectural Service SMC call */
-#define is_arm_arch_svc_call(_fid)	((((_fid) >> FUNCID_OEN_SHIFT) & \
-					   FUNCID_OEN_MASK) == OEN_ARM_START)
+#define is_arm_arch_svc_call(_fid)	(GET_SMC_OEN(_fid) == OEN_ARM_START)
 
 /* The macro below is used to identify a valid Fast SMC call */
 #define is_valid_fast_smc(_fid)		((!(((_fid) >> 16) & U(0xff))) && \
diff --git a/include/lib/smccc_v1.h b/include/lib/smccc_v1.h
new file mode 100644
index 0000000..8718d15
--- /dev/null
+++ b/include/lib/smccc_v1.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SMCCC_V1_H
+#define SMCCC_V1_H
+
+#ifndef __SMCCC_H__
+#error "This file must only be included from smccc.h"
+#endif
+
+/*******************************************************************************
+ * Bit definitions inside the function id as per the SMC calling convention
+ ******************************************************************************/
+#define FUNCID_TYPE_SHIFT		U(31)
+#define FUNCID_TYPE_MASK		U(0x1)
+#define FUNCID_TYPE_WIDTH		U(1)
+
+#define FUNCID_CC_SHIFT			U(30)
+#define FUNCID_CC_MASK			U(0x1)
+#define FUNCID_CC_WIDTH			U(1)
+
+#define FUNCID_OEN_SHIFT		U(24)
+#define FUNCID_OEN_MASK			U(0x3f)
+#define FUNCID_OEN_WIDTH		U(6)
+
+#define FUNCID_NUM_SHIFT		U(0)
+#define FUNCID_NUM_MASK			U(0xffff)
+#define FUNCID_NUM_WIDTH		U(16)
+
+#define GET_SMC_TYPE(id)		(((id) >> FUNCID_TYPE_SHIFT) & \
+					 FUNCID_TYPE_MASK)
+#define GET_SMC_CC(id)			(((id) >> FUNCID_CC_SHIFT) & \
+					 FUNCID_CC_MASK)
+#define GET_SMC_OEN(id)			(((id) >> FUNCID_OEN_SHIFT) & \
+					 FUNCID_OEN_MASK)
+
+/*******************************************************************************
+ * Owning entity number definitions inside the function id as per the SMC
+ * calling convention
+ ******************************************************************************/
+#define OEN_ARM_START			U(0)
+#define OEN_ARM_END			U(0)
+#define OEN_CPU_START			U(1)
+#define OEN_CPU_END			U(1)
+#define OEN_SIP_START			U(2)
+#define OEN_SIP_END			U(2)
+#define OEN_OEM_START			U(3)
+#define OEN_OEM_END			U(3)
+#define OEN_STD_START			U(4)	/* Standard Service Calls */
+#define OEN_STD_END			U(4)
+#define OEN_STD_HYP_START		U(5)	/* Standard Hypervisor Service calls */
+#define OEN_STD_HYP_END			U(5)
+#define OEN_VEN_HYP_START		U(6)	/* Vendor Hypervisor Service calls */
+#define OEN_VEN_HYP_END			U(6)
+#define OEN_TAP_START			U(48)	/* Trusted Applications */
+#define OEN_TAP_END			U(49)
+#define OEN_TOS_START			U(50)	/* Trusted OS */
+#define OEN_TOS_END			U(63)
+#define OEN_LIMIT			U(64)
+
+/* Flags and error codes */
+#define SMC_64				U(1)
+#define SMC_32				U(0)
+
+#define SMC_TYPE_FAST			ULL(1)
+#if !ERROR_DEPRECATED
+#define SMC_TYPE_STD			ULL(0)
+#endif
+#define SMC_TYPE_YIELD			ULL(0)
+
+#define SMC_OK				ULL(0)
+#define SMC_UNK				-1
+#define SMC_PREEMPTED			-2	/* Not defined by the SMCCC */
+
+#endif /* SMCCC_V1_H */
diff --git a/include/lib/smccc_v2.h b/include/lib/smccc_v2.h
new file mode 100644
index 0000000..628c160
--- /dev/null
+++ b/include/lib/smccc_v2.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SMCCC_V2_H
+#define SMCCC_V2_H
+
+#ifndef __SMCCC_H__
+#error "This file must only be included from smccc.h"
+#endif
+
+/*******************************************************************************
+ * Bit definitions inside the function id as per the SMC calling convention
+ ******************************************************************************/
+#define FUNCID_TYPE_SHIFT		U(31)
+#define FUNCID_TYPE_MASK		U(0x1)
+#define FUNCID_TYPE_WIDTH		U(1)
+
+#define FUNCID_CC_SHIFT			U(30)
+#define FUNCID_CC_MASK			U(0x1)
+#define FUNCID_CC_WIDTH			U(1)
+
+#define FUNCID_NAMESPACE_SHIFT		U(28)
+#define FUNCID_NAMESPACE_MASK		U(0x3)
+#define FUNCID_NAMESPACE_WIDTH		U(2)
+
+#define FUNCID_OEN_SHIFT		U(24)
+#define FUNCID_OEN_MASK			U(0xf)
+#define FUNCID_OEN_WIDTH		U(4)
+
+#define FUNCID_NUM_SHIFT		U(0)
+#define FUNCID_NUM_MASK			U(0xffff)
+#define FUNCID_NUM_WIDTH		U(16)
+
+#define GET_SMC_TYPE(id)		(((id) >> FUNCID_TYPE_SHIFT) & \
+					 FUNCID_TYPE_MASK)
+#define GET_SMC_CC(id)			(((id) >> FUNCID_CC_SHIFT) & \
+					 FUNCID_CC_MASK)
+#define GET_SMC_NAMESPACE(id)		(((id) >> FUNCID_NAMESPACE_SHIFT) & \
+					 FUNCID_NAMESPACE_MASK)
+#define GET_SMC_OEN(id)			(((id) >> FUNCID_OEN_SHIFT) & \
+					 FUNCID_OEN_MASK)
+
+/*******************************************************************************
+ * Owning entity number definitions inside the function id as per the SMC
+ * calling convention
+ ******************************************************************************/
+#define OEN_ARM_START			U(0)
+#define OEN_ARM_END			U(0)
+#define OEN_CPU_START			U(1)
+#define OEN_CPU_END			U(1)
+#define OEN_SIP_START			U(2)
+#define OEN_SIP_END			U(2)
+#define OEN_OEM_START			U(3)
+#define OEN_OEM_END			U(3)
+#define OEN_STD_START			U(4)	/* Standard Service Calls */
+#define OEN_STD_END			U(4)
+#define OEN_STD_HYP_START		U(5)	/* Standard Hypervisor Service calls */
+#define OEN_STD_HYP_END			U(5)
+#define OEN_VEN_HYP_START		U(6)	/* Vendor Hypervisor Service calls */
+#define OEN_VEN_HYP_END			U(6)
+#define OEN_LIMIT			U(16)
+
+/*******************************************************************************
+ * Service namespaces as per the SMC Calling Convention v2.X
+ ******************************************************************************/
+#define FUNCID_NAMESPACE_START		U(0)
+#define FUNCID_NAMESPACE_COMPAT		U(0)
+#define FUNCID_NAMESPACE_VENDOR		U(1)
+#define FUNCID_NAMESPACE_SPRT		U(2)
+#define FUNCID_NAMESPACE_SPCI		U(3)
+#define FUNCID_NAMESPACE_LIMIT		U(4)
+
+/* Flags and error codes */
+#define SMC_64				U(1)
+#define SMC_32				U(0)
+
+#define SMC_TYPE_FAST			ULL(1)
+
+#define SMC_OK				ULL(0)
+#define SMC_UNK				-1
+
+#endif /* SMCCC_V2_H */
diff --git a/include/lib/stdlib/machine/_types.h b/include/lib/stdlib/machine/_types.h
index fb1083b..037fdf2 100644
--- a/include/lib/stdlib/machine/_types.h
+++ b/include/lib/stdlib/machine/_types.h
@@ -52,56 +52,19 @@
 typedef	unsigned short		__uint16_t;
 typedef	int			__int32_t;
 typedef	unsigned int		__uint32_t;
-
-
-/*
- * Standard type definitions which are different in AArch64 and AArch32
- */
-#ifdef	AARCH32
 typedef	long long		__int64_t;
 typedef	unsigned long long	__uint64_t;
-typedef	__int32_t	__critical_t;
-typedef	__int32_t	__intfptr_t;
-typedef	__int32_t	__intptr_t;
-typedef	__int32_t	__ptrdiff_t;		/* ptr1 - ptr2 */
-typedef	__int32_t	__register_t;
-typedef	__int32_t	__segsz_t;		/* segment size (in pages) */
-typedef	__uint32_t	__size_t;		/* sizeof() */
-typedef	__int32_t	__ssize_t;		/* byte count or error */
-typedef	__uint32_t	__uintfptr_t;
-typedef	__uint32_t	__uintptr_t;
-typedef	__uint32_t	__u_register_t;
-typedef	__uint32_t	__vm_offset_t;
-typedef	__uint32_t	__vm_paddr_t;
-typedef	__uint32_t	__vm_size_t;
-#elif defined AARCH64
-typedef	long			__int64_t;
-typedef	unsigned long		__uint64_t;
-typedef	__int64_t	__critical_t;
-typedef	__int64_t	__intfptr_t;
-typedef	__int64_t	__intptr_t;
-typedef	__int64_t	__ptrdiff_t;		/* ptr1 - ptr2 */
-typedef	__int64_t	__register_t;
-typedef	__int64_t	__segsz_t;		/* segment size (in pages) */
-typedef	__uint64_t	__size_t;		/* sizeof() */
-typedef	__int64_t	__ssize_t;		/* byte count or error */
-typedef	__uint64_t	__uintfptr_t;
-typedef	__uint64_t	__uintptr_t;
-typedef	__uint64_t	__u_register_t;
-typedef	__uint64_t	__vm_offset_t;
-typedef	__uint64_t	__vm_paddr_t;
-typedef	__uint64_t	__vm_size_t;
-#else
-#error "Only AArch32 or AArch64 supported"
-#endif /* AARCH32 */
 
 /*
  * Standard type definitions.
  */
 typedef	__int32_t	__clock_t;		/* clock()... */
+typedef	long		__critical_t;
 typedef	double		__double_t;
 typedef	float		__float_t;
+typedef	long		__intfptr_t;
 typedef	__int64_t	__intmax_t;
+typedef	long		__intptr_t;
 typedef	__int32_t	__int_fast8_t;
 typedef	__int32_t	__int_fast16_t;
 typedef	__int32_t	__int_fast32_t;
@@ -110,8 +73,22 @@
 typedef	__int16_t	__int_least16_t;
 typedef	__int32_t	__int_least32_t;
 typedef	__int64_t	__int_least64_t;
+typedef	long		__ptrdiff_t;		/* ptr1 - ptr2 */
+typedef	long		__register_t;
+typedef	long		__segsz_t;		/* segment size (in pages) */
+#ifdef	AARCH32
+typedef	unsigned int	__size_t;		/* sizeof() */
+typedef	int		__ssize_t;		/* byte count or error */
+#elif defined AARCH64
+typedef	unsigned long	__size_t;		/* sizeof() */
+typedef	long		__ssize_t;		/* byte count or error */
+#else
+#error "Only AArch32 or AArch64 supported"
+#endif /* AARCH32 */
 typedef	__int64_t	__time_t;		/* time()... */
+typedef	unsigned long	__uintfptr_t;
 typedef	__uint64_t	__uintmax_t;
+typedef	unsigned long	__uintptr_t;
 typedef	__uint32_t	__uint_fast8_t;
 typedef	__uint32_t	__uint_fast16_t;
 typedef	__uint32_t	__uint_fast32_t;
@@ -120,8 +97,12 @@
 typedef	__uint16_t	__uint_least16_t;
 typedef	__uint32_t	__uint_least32_t;
 typedef	__uint64_t	__uint_least64_t;
+typedef	unsigned long	__u_register_t;
+typedef	unsigned long	__vm_offset_t;
 typedef	__int64_t	__vm_ooffset_t;
+typedef	unsigned long	__vm_paddr_t;
 typedef	__uint64_t	__vm_pindex_t;
+typedef	unsigned long	__vm_size_t;
 
 /*
  * Unusual type definitions.
diff --git a/include/lib/xlat_tables/xlat_tables_defs.h b/include/lib/xlat_tables/xlat_tables_defs.h
index 1c84fe0..5eb1d30 100644
--- a/include/lib/xlat_tables/xlat_tables_defs.h
+++ b/include/lib/xlat_tables/xlat_tables_defs.h
@@ -107,10 +107,8 @@
  * Permissions bits, and does not define an AP[0] bit.
  *
  * AP[1] is valid only for a stage 1 translation that supports two VA ranges
- * (i.e. in the ARMv8A.0 architecture, that is the S-EL1&0 regime).
- *
- * AP[1] is RES0 for stage 1 translations that support only one VA range
- * (e.g. EL3).
+ * (i.e. in the ARMv8A.0 architecture, that is the S-EL1&0 regime). It is RES1
+ * when stage 1 translations can only support one VA range.
  */
 #define AP2_SHIFT			U(0x7)
 #define AP2_RO				U(0x1)
@@ -119,6 +117,7 @@
 #define AP1_SHIFT			U(0x6)
 #define AP1_ACCESS_UNPRIVILEGED		U(0x1)
 #define AP1_NO_ACCESS_UNPRIVILEGED	U(0x0)
+#define AP1_RES1			U(0x1)
 
 /*
  * The following definitions must all be passed to the LOWER_ATTRS() macro to
@@ -128,6 +127,7 @@
 #define AP_RW				(AP2_RW << 5)
 #define AP_ACCESS_UNPRIVILEGED		(AP1_ACCESS_UNPRIVILEGED    << 4)
 #define AP_NO_ACCESS_UNPRIVILEGED	(AP1_NO_ACCESS_UNPRIVILEGED << 4)
+#define AP_ONE_VA_RANGE_RES1		(AP1_RES1 << 4)
 #define NS				(U(0x1) << 3)
 #define ATTR_NON_CACHEABLE_INDEX	U(0x2)
 #define ATTR_DEVICE_INDEX		U(0x1)
diff --git a/lib/xlat_tables/xlat_tables_common.c b/lib/xlat_tables/xlat_tables_common.c
index 1309936..21bf489 100644
--- a/lib/xlat_tables/xlat_tables_common.c
+++ b/lib/xlat_tables/xlat_tables_common.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -41,6 +41,7 @@
 static uintptr_t xlat_max_va;
 
 static uint64_t execute_never_mask;
+static uint64_t ap1_mask;
 
 /*
  * Array of all memory regions stored in order of ascending base address.
@@ -195,6 +196,7 @@
 	desc |= (attr & MT_NS) ? LOWER_ATTRS(NS) : 0;
 	desc |= (attr & MT_RW) ? LOWER_ATTRS(AP_RW) : LOWER_ATTRS(AP_RO);
 	desc |= LOWER_ATTRS(ACCESS_FLAG);
+	desc |= ap1_mask;
 
 	/*
 	 * Deduce shareability domain and executability of the memory region
@@ -381,7 +383,17 @@
 			unsigned int level, uintptr_t *max_va,
 			unsigned long long *max_pa)
 {
-	execute_never_mask = xlat_arch_get_xn_desc(xlat_arch_current_el());
+	int el = xlat_arch_current_el();
+
+	execute_never_mask = xlat_arch_get_xn_desc(el);
+
+	if (el == 3) {
+		ap1_mask = LOWER_ATTRS(AP_ONE_VA_RANGE_RES1);
+	} else {
+		assert(el == 1);
+		ap1_mask = 0;
+	}
+
 	init_xlation_table_inner(mmap, base_va, table, level);
 	*max_va = xlat_max_va;
 	*max_pa = xlat_max_pa;
diff --git a/lib/xlat_tables_v2/xlat_tables_internal.c b/lib/xlat_tables_v2/xlat_tables_internal.c
index aa13064..584d7c4 100644
--- a/lib/xlat_tables_v2/xlat_tables_internal.c
+++ b/lib/xlat_tables_v2/xlat_tables_internal.c
@@ -155,7 +155,7 @@
 		}
 	} else {
 		assert(ctx->xlat_regime == EL3_REGIME);
-		desc |= LOWER_ATTRS(AP_NO_ACCESS_UNPRIVILEGED);
+		desc |= LOWER_ATTRS(AP_ONE_VA_RANGE_RES1);
 	}
 
 	/*
diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
index 77eb157..9e95cd5 100644
--- a/make_helpers/defaults.mk
+++ b/make_helpers/defaults.mk
@@ -133,6 +133,9 @@
 # platform Makefile is free to override this value.
 SEPARATE_CODE_AND_RODATA	:= 0
 
+# Default to SMCCC Version 1.X
+SMCCC_MAJOR_VERSION		:= 1
+
 # SPD choice
 SPD				:= none
 
diff --git a/plat/common/aarch64/plat_common.c b/plat/common/aarch64/plat_common.c
index ddd29f2..7a2f38c 100644
--- a/plat/common/aarch64/plat_common.c
+++ b/plat/common/aarch64/plat_common.c
@@ -93,7 +93,7 @@
  */
 void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr)
 {
-	WARN("Spurious SDEI interrupt %u on masked PE %lx\n", intr, mpidr);
+	WARN("Spurious SDEI interrupt %u on masked PE %llx\n", intr, mpidr);
 }
 
 /*
diff --git a/plat/hisilicon/hikey/hikey_bl1_setup.c b/plat/hisilicon/hikey/hikey_bl1_setup.c
index 28ad9df..da6f6a5 100644
--- a/plat/hisilicon/hikey/hikey_bl1_setup.c
+++ b/plat/hisilicon/hikey/hikey_bl1_setup.c
@@ -172,7 +172,7 @@
 		__asm__ volatile ("msr	cpacr_el1, %0" : : "r"(data));
 		__asm__ volatile ("mrs	%0, cpacr_el1" : "=r"(data));
 	} while ((data & (3 << 20)) != (3 << 20));
-	INFO("cpacr_el1:0x%lx\n", data);
+	INFO("cpacr_el1:0x%llx\n", data);
 
 	ep_info->args.arg0 = 0xffff & read_mpidr();
 	ep_info->spsr = SPSR_64(MODE_EL1, MODE_SP_ELX,
diff --git a/plat/hisilicon/poplar/platform.mk b/plat/hisilicon/poplar/platform.mk
index 7c8027e..14ffa99 100644
--- a/plat/hisilicon/poplar/platform.mk
+++ b/plat/hisilicon/poplar/platform.mk
@@ -34,10 +34,10 @@
 # Add the build options to pack Trusted OS Extra1 and Trusted OS Extra2 images
 # in the FIP if the platform requires.
 ifneq ($(BL32_EXTRA1),)
-$(eval $(call FIP_ADD_IMG,BL32_EXTRA1,--tos-fw-extra1))
+$(eval $(call TOOL_ADD_IMG,BL32_EXTRA1,--tos-fw-extra1))
 endif
 ifneq ($(BL32_EXTRA2),)
-$(eval $(call FIP_ADD_IMG,BL32_EXTRA2,--tos-fw-extra2))
+$(eval $(call TOOL_ADD_IMG,BL32_EXTRA2,--tos-fw-extra2))
 endif
 
 NEED_BL33			:= yes
diff --git a/plat/mediatek/common/custom/oem_svc.c b/plat/mediatek/common/custom/oem_svc.c
index 49e7571..c396e2d 100644
--- a/plat/mediatek/common/custom/oem_svc.c
+++ b/plat/mediatek/common/custom/oem_svc.c
@@ -32,14 +32,14 @@
 /*******************************************************************************
  * OEM top level handler for servicing SMCs.
  ******************************************************************************/
-uint64_t oem_smc_handler(uint32_t smc_fid,
-			uint64_t x1,
-			uint64_t x2,
-			uint64_t x3,
-			uint64_t x4,
+uintptr_t oem_smc_handler(uint32_t smc_fid,
+			u_register_t x1,
+			u_register_t x2,
+			u_register_t x3,
+			u_register_t x4,
 			void *cookie,
 			void *handle,
-			uint64_t flags)
+			u_register_t flags)
 {
 	WARN("Unimplemented OEM Call: 0x%x\n", smc_fid);
 	SMC_RET1(handle, SMC_UNK);
@@ -49,14 +49,14 @@
  * Top-level OEM Service SMC handler. This handler will in turn dispatch
  * calls to related SMC handler
  */
-uint64_t oem_svc_smc_handler(uint32_t smc_fid,
-			 uint64_t x1,
-			 uint64_t x2,
-			 uint64_t x3,
-			 uint64_t x4,
+uintptr_t oem_svc_smc_handler(uint32_t smc_fid,
+			 u_register_t x1,
+			 u_register_t x2,
+			 u_register_t x3,
+			 u_register_t x4,
 			 void *cookie,
 			 void *handle,
-			 uint64_t flags)
+			 u_register_t flags)
 {
 	/*
 	 * Dispatch OEM calls to OEM Common handler and return its return value
diff --git a/plat/mediatek/common/mtk_plat_common.c b/plat/mediatek/common/mtk_plat_common.c
index 6a13192..a15131d 100644
--- a/plat/mediatek/common/mtk_plat_common.c
+++ b/plat/mediatek/common/mtk_plat_common.c
@@ -19,10 +19,10 @@
 struct atf_arg_t gteearg;
 
 void clean_top_32b_of_param(uint32_t smc_fid,
-				uint64_t *px1,
-				uint64_t *px2,
-				uint64_t *px3,
-				uint64_t *px4)
+				u_register_t *px1,
+				u_register_t *px2,
+				u_register_t *px3,
+				u_register_t *px4)
 {
 	/* if parameters from SMC32. Clean top 32 bits */
 	if (0 == (smc_fid & SMC_AARCH64_BIT)) {
diff --git a/plat/mediatek/common/mtk_plat_common.h b/plat/mediatek/common/mtk_plat_common.h
index 7513bc7..501c339 100644
--- a/plat/mediatek/common/mtk_plat_common.h
+++ b/plat/mediatek/common/mtk_plat_common.h
@@ -48,10 +48,10 @@
 /* Declarations for mtk_plat_common.c */
 uint32_t plat_get_spsr_for_bl32_entry(void);
 uint32_t plat_get_spsr_for_bl33_entry(void);
-void clean_top_32b_of_param(uint32_t smc_fid, uint64_t *x1,
-				uint64_t *x2,
-				uint64_t *x3,
-				uint64_t *x4);
+void clean_top_32b_of_param(uint32_t smc_fid, u_register_t *x1,
+				u_register_t *x2,
+				u_register_t *x3,
+				u_register_t *x4);
 void bl31_prepare_kernel_entry(uint64_t k32_64);
 void enable_ns_access_to_cpuectlr(void);
 void boot_to_kernel(uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4);
diff --git a/plat/mediatek/common/mtk_sip_svc.c b/plat/mediatek/common/mtk_sip_svc.c
index 869a959..ea8cea0 100644
--- a/plat/mediatek/common/mtk_sip_svc.c
+++ b/plat/mediatek/common/mtk_sip_svc.c
@@ -19,14 +19,14 @@
 		0x8f, 0x95, 0x05, 0x00, 0x0f, 0x3d);
 
 #pragma weak mediatek_plat_sip_handler
-uint64_t mediatek_plat_sip_handler(uint32_t smc_fid,
-				uint64_t x1,
-				uint64_t x2,
-				uint64_t x3,
-				uint64_t x4,
+uintptr_t mediatek_plat_sip_handler(uint32_t smc_fid,
+				u_register_t x1,
+				u_register_t x2,
+				u_register_t x3,
+				u_register_t x4,
 				void *cookie,
 				void *handle,
-				uint64_t flags)
+				u_register_t flags)
 {
 	ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
 	SMC_RET1(handle, SMC_UNK);
@@ -34,14 +34,14 @@
 
 /*
  * This function handles Mediatek defined SiP Calls */
-uint64_t mediatek_sip_handler(uint32_t smc_fid,
-			uint64_t x1,
-			uint64_t x2,
-			uint64_t x3,
-			uint64_t x4,
+uintptr_t mediatek_sip_handler(uint32_t smc_fid,
+			u_register_t x1,
+			u_register_t x2,
+			u_register_t x3,
+			u_register_t x4,
 			void *cookie,
 			void *handle,
-			uint64_t flags)
+			u_register_t flags)
 {
 	uint32_t ns;
 
@@ -85,14 +85,14 @@
 /*
  * This function is responsible for handling all SiP calls from the NS world
  */
-uint64_t sip_smc_handler(uint32_t smc_fid,
-			 uint64_t x1,
-			 uint64_t x2,
-			 uint64_t x3,
-			 uint64_t x4,
+uintptr_t sip_smc_handler(uint32_t smc_fid,
+			 u_register_t x1,
+			 u_register_t x2,
+			 u_register_t x3,
+			 u_register_t x4,
 			 void *cookie,
 			 void *handle,
-			 uint64_t flags)
+			 u_register_t flags)
 {
 	switch (smc_fid) {
 	case SIP_SVC_CALL_COUNT:
diff --git a/plat/nvidia/tegra/common/tegra_sip_calls.c b/plat/nvidia/tegra/common/tegra_sip_calls.c
index d96ce7a..a818453 100644
--- a/plat/nvidia/tegra/common/tegra_sip_calls.c
+++ b/plat/nvidia/tegra/common/tegra_sip_calls.c
@@ -49,14 +49,14 @@
 /*******************************************************************************
  * This function is responsible for handling all SiP calls
  ******************************************************************************/
-uint64_t tegra_sip_handler(uint32_t smc_fid,
-			   uint64_t x1,
-			   uint64_t x2,
-			   uint64_t x3,
-			   uint64_t x4,
-			   void *cookie,
-			   void *handle,
-			   uint64_t flags)
+uintptr_t tegra_sip_handler(uint32_t smc_fid,
+			    u_register_t x1,
+			    u_register_t x2,
+			    u_register_t x3,
+			    u_register_t x4,
+			    void *cookie,
+			    void *handle,
+			    u_register_t flags)
 {
 	uint32_t regval;
 	int err;
diff --git a/plat/nvidia/tegra/soc/t186/drivers/mce/mce.c b/plat/nvidia/tegra/soc/t186/drivers/mce/mce.c
index 5435ce6..1353b6a 100644
--- a/plat/nvidia/tegra/soc/t186/drivers/mce/mce.c
+++ b/plat/nvidia/tegra/soc/t186/drivers/mce/mce.c
@@ -382,7 +382,7 @@
 		break;
 
 	default:
-		ERROR("unknown MCE command (%lu)\n", cmd);
+		ERROR("unknown MCE command (%llu)\n", cmd);
 		ret = EINVAL;
 		break;
 	}
diff --git a/plat/rockchip/common/params_setup.c b/plat/rockchip/common/params_setup.c
index 65afe87..3dac013 100644
--- a/plat/rockchip/common/params_setup.c
+++ b/plat/rockchip/common/params_setup.c
@@ -92,7 +92,7 @@
 			break;
 #endif
 		default:
-			ERROR("not expected type found %ld\n",
+			ERROR("not expected type found %lld\n",
 			      bl2_param->type);
 			break;
 		}
diff --git a/plat/rockchip/common/rockchip_sip_svc.c b/plat/rockchip/common/rockchip_sip_svc.c
index eca4f99..2480599 100644
--- a/plat/rockchip/common/rockchip_sip_svc.c
+++ b/plat/rockchip/common/rockchip_sip_svc.c
@@ -18,14 +18,14 @@
 		0x8f, 0x88, 0xee, 0x74, 0x7b, 0x72);
 
 #pragma weak rockchip_plat_sip_handler
-uint64_t rockchip_plat_sip_handler(uint32_t smc_fid,
-				   uint64_t x1,
-				   uint64_t x2,
-				   uint64_t x3,
-				   uint64_t x4,
-				   void *cookie,
-				   void *handle,
-				   uint64_t flags)
+uintptr_t rockchip_plat_sip_handler(uint32_t smc_fid,
+				    u_register_t x1,
+				    u_register_t x2,
+				    u_register_t x3,
+				    u_register_t x4,
+				    void *cookie,
+				    void *handle,
+				    u_register_t flags)
 {
 	ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
 	SMC_RET1(handle, SMC_UNK);
@@ -34,14 +34,14 @@
 /*
  * This function is responsible for handling all SiP calls from the NS world
  */
-uint64_t sip_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)
+uintptr_t sip_smc_handler(uint32_t smc_fid,
+			  u_register_t x1,
+			  u_register_t x2,
+			  u_register_t x3,
+			  u_register_t x4,
+			  void *cookie,
+			  void *handle,
+			  u_register_t flags)
 {
 	uint32_t ns;
 
diff --git a/plat/rockchip/rk3368/plat_sip_calls.c b/plat/rockchip/rk3368/plat_sip_calls.c
index 03fee88..c0f43db 100644
--- a/plat/rockchip/rk3368/plat_sip_calls.c
+++ b/plat/rockchip/rk3368/plat_sip_calls.c
@@ -10,14 +10,14 @@
 #include <rockchip_sip_svc.h>
 #include <runtime_svc.h>
 
-uint64_t rockchip_plat_sip_handler(uint32_t smc_fid,
-				   uint64_t x1,
-				   uint64_t x2,
-				   uint64_t x3,
-				   uint64_t x4,
+uintptr_t rockchip_plat_sip_handler(uint32_t smc_fid,
+				   u_register_t x1,
+				   u_register_t x2,
+				   u_register_t x3,
+				   u_register_t x4,
 				   void *cookie,
 				   void *handle,
-				   uint64_t flags)
+				   u_register_t flags)
 {
 	ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
 	SMC_RET1(handle, SMC_UNK);
diff --git a/plat/rockchip/rk3399/plat_sip_calls.c b/plat/rockchip/rk3399/plat_sip_calls.c
index 2fbda67..ae74c9c 100644
--- a/plat/rockchip/rk3399/plat_sip_calls.c
+++ b/plat/rockchip/rk3399/plat_sip_calls.c
@@ -47,14 +47,14 @@
 	return 0;
 }
 
-uint64_t rockchip_plat_sip_handler(uint32_t smc_fid,
-				   uint64_t x1,
-				   uint64_t x2,
-				   uint64_t x3,
-				   uint64_t x4,
-				   void *cookie,
-				   void *handle,
-				   uint64_t flags)
+uintptr_t rockchip_plat_sip_handler(uint32_t smc_fid,
+				    u_register_t x1,
+				    u_register_t x2,
+				    u_register_t x3,
+				    u_register_t x4,
+				    void *cookie,
+				    void *handle,
+				    u_register_t flags)
 {
 	uint64_t x5, x6;
 
diff --git a/plat/xilinx/zynqmp/plat_startup.c b/plat/xilinx/zynqmp/plat_startup.c
index 3ec492e..18d150c 100644
--- a/plat/xilinx/zynqmp/plat_startup.c
+++ b/plat/xilinx/zynqmp/plat_startup.c
@@ -166,12 +166,12 @@
 	    (ATFHandoffParams->magic[1] != 'L') ||
 	    (ATFHandoffParams->magic[2] != 'N') ||
 	    (ATFHandoffParams->magic[3] != 'X')) {
-		ERROR("BL31: invalid ATF handoff structure at %lx\n",
+		ERROR("BL31: invalid ATF handoff structure at %llx\n",
 		      atf_handoff_addr);
 		panic();
 	}
 
-	VERBOSE("BL31: ATF handoff params at:0x%lx, entries:%u\n",
+	VERBOSE("BL31: ATF handoff params at:0x%llx, entries:%u\n",
 		atf_handoff_addr, ATFHandoffParams->num_entries);
 	if (ATFHandoffParams->num_entries > FSBL_MAX_PARTITIONS) {
 		ERROR("BL31: ATF handoff params: too many partitions (%u/%u)\n",
@@ -189,7 +189,7 @@
 		int target_estate, target_secure;
 		int target_cpu, target_endianness, target_el;
 
-		VERBOSE("BL31: %zd: entry:0x%lx, flags:0x%lx\n", i,
+		VERBOSE("BL31: %zd: entry:0x%llx, flags:0x%llx\n", i,
 			ATFHandoffParams->partition[i].entry_point,
 			ATFHandoffParams->partition[i].flags);
 
@@ -250,7 +250,7 @@
 			}
 		}
 
-		VERBOSE("Setting up %s entry point to:%lx, el:%x\n",
+		VERBOSE("Setting up %s entry point to:%llx, el:%x\n",
 			target_secure == FSBL_FLAGS_SECURE ? "BL32" : "BL33",
 			ATFHandoffParams->partition[i].entry_point,
 			target_el);
diff --git a/plat/xilinx/zynqmp/sip_svc_setup.c b/plat/xilinx/zynqmp/sip_svc_setup.c
index 8b44eaa..c7996ce 100644
--- a/plat/xilinx/zynqmp/sip_svc_setup.c
+++ b/plat/xilinx/zynqmp/sip_svc_setup.c
@@ -52,14 +52,14 @@
  * Handler for all SiP SMC calls. Handles standard SIP requests
  * and calls PM SMC handler if the call is for a PM-API function.
  */
-uint64_t sip_svc_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)
+uintptr_t sip_svc_smc_handler(uint32_t smc_fid,
+			      u_register_t x1,
+			      u_register_t x2,
+			      u_register_t x3,
+			      u_register_t x4,
+			      void *cookie,
+			      void *handle,
+			      u_register_t flags)
 {
 	/* Let PM SMC handler deal with PM-related requests */
 	if (is_pm_fid(smc_fid)) {
diff --git a/services/spd/opteed/opteed_main.c b/services/spd/opteed/opteed_main.c
index 3d67980..ac58e04 100644
--- a/services/spd/opteed/opteed_main.c
+++ b/services/spd/opteed/opteed_main.c
@@ -90,7 +90,7 @@
  * (aarch32/aarch64) if not already known and initialises the context for entry
  * into OPTEE for its initialization.
  ******************************************************************************/
-int32_t opteed_setup(void)
+static int32_t opteed_setup(void)
 {
 	entry_point_info_t *optee_ep_info;
 	uint32_t linear_id;
@@ -187,14 +187,14 @@
  * state. Lastly it will also return any information that OPTEE needs to do
  * the work assigned to it.
  ******************************************************************************/
-uint64_t opteed_smc_handler(uint32_t smc_fid,
-			 uint64_t x1,
-			 uint64_t x2,
-			 uint64_t x3,
-			 uint64_t x4,
+static uintptr_t opteed_smc_handler(uint32_t smc_fid,
+			 u_register_t x1,
+			 u_register_t x2,
+			 u_register_t x3,
+			 u_register_t x4,
 			 void *cookie,
 			 void *handle,
-			 uint64_t flags)
+			 u_register_t flags)
 {
 	cpu_context_t *ns_cpu_context;
 	uint32_t linear_id = plat_my_core_pos();
diff --git a/services/spd/opteed/opteed_pm.c b/services/spd/opteed/opteed_pm.c
index 2420b1e..7efc234 100644
--- a/services/spd/opteed/opteed_pm.c
+++ b/services/spd/opteed/opteed_pm.c
@@ -16,7 +16,7 @@
  * The target cpu is being turned on. Allow the OPTEED/OPTEE to perform any
  * actions needed. Nothing at the moment.
  ******************************************************************************/
-static void opteed_cpu_on_handler(uint64_t target_cpu)
+static void opteed_cpu_on_handler(u_register_t target_cpu)
 {
 }
 
@@ -24,7 +24,7 @@
  * This cpu is being turned off. Allow the OPTEED/OPTEE to perform any actions
  * needed
  ******************************************************************************/
-static int32_t opteed_cpu_off_handler(uint64_t unused)
+static int32_t opteed_cpu_off_handler(u_register_t unused)
 {
 	int32_t rc = 0;
 	uint32_t linear_id = plat_my_core_pos();
@@ -57,7 +57,7 @@
  * This cpu is being suspended. S-EL1 state must have been saved in the
  * resident cpu (mpidr format) if it is a UP/UP migratable OPTEE.
  ******************************************************************************/
-static void opteed_cpu_suspend_handler(uint64_t max_off_pwrlvl)
+static void opteed_cpu_suspend_handler(u_register_t max_off_pwrlvl)
 {
 	int32_t rc = 0;
 	uint32_t linear_id = plat_my_core_pos();
@@ -87,7 +87,7 @@
  * after initialising minimal architectural state that guarantees safe
  * execution.
  ******************************************************************************/
-static void opteed_cpu_on_finish_handler(uint64_t unused)
+static void opteed_cpu_on_finish_handler(u_register_t unused)
 {
 	int32_t rc = 0;
 	uint32_t linear_id = plat_my_core_pos();
@@ -123,7 +123,7 @@
  * completed the preceding suspend call. Use that context to program an entry
  * into OPTEE to allow it to do any remaining book keeping
  ******************************************************************************/
-static void opteed_cpu_suspend_finish_handler(uint64_t max_off_pwrlvl)
+static void opteed_cpu_suspend_finish_handler(u_register_t max_off_pwrlvl)
 {
 	int32_t rc = 0;
 	uint32_t linear_id = plat_my_core_pos();
@@ -154,7 +154,7 @@
  * Return the type of OPTEE the OPTEED is dealing with. Report the current
  * resident cpu (mpidr format) if it is a UP/UP migratable OPTEE.
  ******************************************************************************/
-static int32_t opteed_cpu_migrate_info(uint64_t *resident_cpu)
+static int32_t opteed_cpu_migrate_info(u_register_t *resident_cpu)
 {
 	return OPTEE_MIGRATE_INFO;
 }
diff --git a/services/spd/tlkd/tlkd_main.c b/services/spd/tlkd/tlkd_main.c
index da3b732..5090f06 100644
--- a/services/spd/tlkd/tlkd_main.c
+++ b/services/spd/tlkd/tlkd_main.c
@@ -44,14 +44,14 @@
 		0xbd11e9c9, 0x2bba, 0x52ee, 0xb1, 0x72,
 		0x46, 0x1f, 0xba, 0x97, 0x7f, 0x63);
 
-int32_t tlkd_init(void);
+static int32_t tlkd_init(void);
 
 /*******************************************************************************
  * Secure Payload Dispatcher setup. The SPD finds out the SP entrypoint and type
  * (aarch32/aarch64) if not already known and initialises the context for entry
  * into the SP for its initialisation.
  ******************************************************************************/
-int32_t tlkd_setup(void)
+static int32_t tlkd_setup(void)
 {
 	entry_point_info_t *tlk_ep_info;
 
@@ -100,7 +100,7 @@
  * used. This function performs a synchronous entry into the Secure payload.
  * The SP passes control back to this routine through a SMC.
  ******************************************************************************/
-int32_t tlkd_init(void)
+static int32_t tlkd_init(void)
 {
 	entry_point_info_t *tlk_entry_point;
 
@@ -133,14 +133,14 @@
  * will also return any information that the secure payload needs to do the
  * work assigned to it.
  ******************************************************************************/
-uint64_t tlkd_smc_handler(uint32_t smc_fid,
-			 uint64_t x1,
-			 uint64_t x2,
-			 uint64_t x3,
-			 uint64_t x4,
+static uintptr_t tlkd_smc_handler(uint32_t smc_fid,
+			 u_register_t x1,
+			 u_register_t x2,
+			 u_register_t x3,
+			 u_register_t x4,
 			 void *cookie,
 			 void *handle,
-			 uint64_t flags)
+			 u_register_t flags)
 {
 	cpu_context_t *ns_cpu_context;
 	gp_regs_t *gp_regs;
diff --git a/services/spd/tlkd/tlkd_pm.c b/services/spd/tlkd/tlkd_pm.c
index 8b4c457..2cd2fbb 100644
--- a/services/spd/tlkd/tlkd_pm.c
+++ b/services/spd/tlkd/tlkd_pm.c
@@ -22,7 +22,7 @@
  * Return the type of payload TLKD is dealing with. Report the current
  * resident cpu (mpidr format) if it is a UP/UP migratable payload.
  ******************************************************************************/
-static int32_t cpu_migrate_info(uint64_t *resident_cpu)
+static int32_t cpu_migrate_info(u_register_t *resident_cpu)
 {
 	/* the payload runs only on CPU0 */
 	*resident_cpu = MPIDR_CPU0;
@@ -35,7 +35,7 @@
  * This cpu is being suspended. Inform TLK of the SYSTEM_SUSPEND event, so
  * that it can pass this information to its Trusted Apps.
  ******************************************************************************/
-static void cpu_suspend_handler(uint64_t suspend_level)
+static void cpu_suspend_handler(u_register_t suspend_level)
 {
 	gp_regs_t *gp_regs;
 	int cpu = read_mpidr() & MPIDR_CPU_MASK;
@@ -67,7 +67,7 @@
  * This cpu is being resumed. Inform TLK of the SYSTEM_SUSPEND exit, so
  * that it can pass this information to its Trusted Apps.
  ******************************************************************************/
-static void cpu_resume_handler(uint64_t suspend_level)
+static void cpu_resume_handler(u_register_t suspend_level)
 {
 	gp_regs_t *gp_regs;
 	int cpu = read_mpidr() & MPIDR_CPU_MASK;
diff --git a/services/spd/trusty/trusty.c b/services/spd/trusty/trusty.c
index 97f202c..cc808e2 100644
--- a/services/spd/trusty/trusty.c
+++ b/services/spd/trusty/trusty.c
@@ -53,7 +53,7 @@
 	uint64_t	r7;
 };
 
-struct trusty_cpu_ctx trusty_cpu_ctx[PLATFORM_CORE_COUNT];
+static struct trusty_cpu_ctx trusty_cpu_ctx[PLATFORM_CORE_COUNT];
 
 struct args trusty_init_context_stack(void **sp, void *new_stack);
 struct args trusty_context_switch_helper(void **sp, void *smc_params);
@@ -159,7 +159,7 @@
 	struct trusty_cpu_ctx *ctx;
 
 	if (cpu >= PLATFORM_CORE_COUNT) {
-		ERROR("%s: cpu %ld >= %d\n", __func__, cpu, PLATFORM_CORE_COUNT);
+		ERROR("%s: cpu %lld >= %d\n", __func__, cpu, PLATFORM_CORE_COUNT);
 		return SM_ERR_INVALID_PARAMETERS;
 	}
 
@@ -191,7 +191,7 @@
 
 	ret = trusty_context_switch(NON_SECURE, SMC_FC_FIQ_EXIT, 0, 0, 0);
 	if (ret.r0 != 1) {
-		INFO("%s(%p) SMC_FC_FIQ_EXIT returned unexpected value, %ld\n",
+		INFO("%s(%p) SMC_FC_FIQ_EXIT returned unexpected value, %lld\n",
 		       __func__, handle, ret.r0);
 	}
 
@@ -212,14 +212,14 @@
 	SMC_RET0(handle);
 }
 
-static uint64_t trusty_smc_handler(uint32_t smc_fid,
-			 uint64_t x1,
-			 uint64_t x2,
-			 uint64_t x3,
-			 uint64_t x4,
+static uintptr_t trusty_smc_handler(uint32_t smc_fid,
+			 u_register_t x1,
+			 u_register_t x2,
+			 u_register_t x3,
+			 u_register_t x4,
 			 void *cookie,
 			 void *handle,
-			 uint64_t flags)
+			 u_register_t flags)
 {
 	struct args ret;
 	uint32_t vmid = 0;
@@ -331,7 +331,7 @@
 
 	ret = trusty_context_switch(NON_SECURE, SMC_FC_CPU_SUSPEND, off, 0, 0);
 	if (ret.r0 != 0) {
-		INFO("%s: cpu %d, SMC_FC_CPU_SUSPEND returned unexpected value, %ld\n",
+		INFO("%s: cpu %d, SMC_FC_CPU_SUSPEND returned unexpected value, %lld\n",
 		     __func__, plat_my_core_pos(), ret.r0);
 	}
 }
@@ -342,19 +342,19 @@
 
 	ret = trusty_context_switch(NON_SECURE, SMC_FC_CPU_RESUME, on, 0, 0);
 	if (ret.r0 != 0) {
-		INFO("%s: cpu %d, SMC_FC_CPU_RESUME returned unexpected value, %ld\n",
+		INFO("%s: cpu %d, SMC_FC_CPU_RESUME returned unexpected value, %lld\n",
 		     __func__, plat_my_core_pos(), ret.r0);
 	}
 }
 
-static int32_t trusty_cpu_off_handler(uint64_t unused)
+static int32_t trusty_cpu_off_handler(u_register_t unused)
 {
 	trusty_cpu_suspend(1);
 
 	return 0;
 }
 
-static void trusty_cpu_on_finish_handler(uint64_t unused)
+static void trusty_cpu_on_finish_handler(u_register_t unused)
 {
 	struct trusty_cpu_ctx *ctx = get_trusty_ctx();
 
@@ -365,12 +365,12 @@
 	}
 }
 
-static void trusty_cpu_suspend_handler(uint64_t unused)
+static void trusty_cpu_suspend_handler(u_register_t unused)
 {
 	trusty_cpu_suspend(0);
 }
 
-static void trusty_cpu_suspend_finish_handler(uint64_t unused)
+static void trusty_cpu_suspend_finish_handler(u_register_t unused)
 {
 	trusty_cpu_resume(0);
 }
diff --git a/services/spd/tspd/tspd_main.c b/services/spd/tspd/tspd_main.c
index 2312205..8cb23b9 100644
--- a/services/spd/tspd/tspd_main.c
+++ b/services/spd/tspd/tspd_main.c
@@ -179,7 +179,7 @@
  * (aarch32/aarch64) if not already known and initialises the context for entry
  * into the SP for its initialisation.
  ******************************************************************************/
-int32_t tspd_setup(void)
+static int32_t tspd_setup(void)
 {
 	entry_point_info_t *tsp_ep_info;
 	uint32_t linear_id;
@@ -273,14 +273,14 @@
  * will also return any information that the secure payload needs to do the
  * work assigned to it.
  ******************************************************************************/
-uint64_t tspd_smc_handler(uint32_t smc_fid,
-			 uint64_t x1,
-			 uint64_t x2,
-			 uint64_t x3,
-			 uint64_t x4,
+static uintptr_t tspd_smc_handler(uint32_t smc_fid,
+			 u_register_t x1,
+			 u_register_t x2,
+			 u_register_t x3,
+			 u_register_t x4,
 			 void *cookie,
 			 void *handle,
-			 uint64_t flags)
+			 u_register_t flags)
 {
 	cpu_context_t *ns_cpu_context;
 	uint32_t linear_id = plat_my_core_pos(), ns;
diff --git a/services/spd/tspd/tspd_pm.c b/services/spd/tspd/tspd_pm.c
index 5fdd3dc..9414c15 100644
--- a/services/spd/tspd/tspd_pm.c
+++ b/services/spd/tspd/tspd_pm.c
@@ -17,7 +17,7 @@
  * The target cpu is being turned on. Allow the TSPD/TSP to perform any actions
  * needed. Nothing at the moment.
  ******************************************************************************/
-static void tspd_cpu_on_handler(uint64_t target_cpu)
+static void tspd_cpu_on_handler(u_register_t target_cpu)
 {
 }
 
@@ -25,7 +25,7 @@
  * This cpu is being turned off. Allow the TSPD/TSP to perform any actions
  * needed
  ******************************************************************************/
-static int32_t tspd_cpu_off_handler(uint64_t unused)
+static int32_t tspd_cpu_off_handler(u_register_t unused)
 {
 	int32_t rc = 0;
 	uint32_t linear_id = plat_my_core_pos();
@@ -64,7 +64,7 @@
  * This cpu is being suspended. S-EL1 state must have been saved in the
  * resident cpu (mpidr format) if it is a UP/UP migratable TSP.
  ******************************************************************************/
-static void tspd_cpu_suspend_handler(uint64_t max_off_pwrlvl)
+static void tspd_cpu_suspend_handler(u_register_t max_off_pwrlvl)
 {
 	int32_t rc = 0;
 	uint32_t linear_id = plat_my_core_pos();
@@ -100,7 +100,7 @@
  * after initialising minimal architectural state that guarantees safe
  * execution.
  ******************************************************************************/
-static void tspd_cpu_on_finish_handler(uint64_t unused)
+static void tspd_cpu_on_finish_handler(u_register_t unused)
 {
 	int32_t rc = 0;
 	uint32_t linear_id = plat_my_core_pos();
@@ -145,7 +145,7 @@
  * completed the preceding suspend call. Use that context to program an entry
  * into the TSP to allow it to do any remaining book keeping
  ******************************************************************************/
-static void tspd_cpu_suspend_finish_handler(uint64_t max_off_pwrlvl)
+static void tspd_cpu_suspend_finish_handler(u_register_t max_off_pwrlvl)
 {
 	int32_t rc = 0;
 	uint32_t linear_id = plat_my_core_pos();
@@ -176,7 +176,7 @@
  * Return the type of TSP the TSPD is dealing with. Report the current resident
  * cpu (mpidr format) if it is a UP/UP migratable TSP.
  ******************************************************************************/
-static int32_t tspd_cpu_migrate_info(uint64_t *resident_cpu)
+static int32_t tspd_cpu_migrate_info(u_register_t *resident_cpu)
 {
 	return TSP_MIGRATE_INFO;
 }
diff --git a/services/spd/tspd/tspd_private.h b/services/spd/tspd/tspd_private.h
index a63daff..692a967 100644
--- a/services/spd/tspd/tspd_private.h
+++ b/services/spd/tspd/tspd_private.h
@@ -221,16 +221,6 @@
 				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];
diff --git a/tools/cert_create/Makefile b/tools/cert_create/Makefile
index b0994b8..8a1958f 100644
--- a/tools/cert_create/Makefile
+++ b/tools/cert_create/Makefile
@@ -86,5 +86,5 @@
 	$(call SHELL_DELETE_ALL, src/build_msg.o ${OBJECTS})
 
 realclean: clean
-	$(call SHELL_DELETE, ${BINARY})
+	$(call SHELL_DELETE,${BINARY})