diff --git a/Makefile b/Makefile
index 97afc34..4896ba9 100644
--- a/Makefile
+++ b/Makefile
@@ -55,6 +55,19 @@
 endif
 export Q
 
+################################################################################
+# Toolchain configs
+################################################################################
+CC			:=	${CROSS_COMPILE}gcc
+CPP			:=	${CROSS_COMPILE}cpp
+AS			:=	${CROSS_COMPILE}gcc
+AR			:=	${CROSS_COMPILE}ar
+LD			:=	${CROSS_COMPILE}ld
+OC			:=	${CROSS_COMPILE}objcopy
+OD			:=	${CROSS_COMPILE}objdump
+NM			:=	${CROSS_COMPILE}nm
+PP			:=	${CROSS_COMPILE}gcc
+
 ifneq (${DEBUG}, 0)
 	BUILD_TYPE	:=	debug
 	# Use LOG_LEVEL_INFO by default for debug builds
@@ -182,7 +195,9 @@
 
 ################################################################################
 
+################################################################################
 # Assembler, compiler and linker flags shared across all test images.
+################################################################################
 COMMON_ASFLAGS		:=
 COMMON_CFLAGS		:=
 COMMON_LDFLAGS		:=
@@ -215,44 +230,69 @@
 $(info Arm Architecture Features specified: $(subst +, ,$(arch-features)))
 endif	# arch-features
 
-COMMON_ASFLAGS_aarch64	:=	-mgeneral-regs-only ${march64-directive}
-COMMON_CFLAGS_aarch64	:=	-mgeneral-regs-only -mstrict-align ${march64-directive}
+################################################################################
+# Compiler settings
+################################################################################
+ifneq ($(findstring clang,$(notdir $(CC))),)
+CLANG_CFLAGS_aarch64	:=	-target aarch64-elf
 
-COMMON_ASFLAGS_aarch32	:=	${march32-directive}
-COMMON_CFLAGS_aarch32	:=	${march32-directive} -mno-unaligned-access
+CPP			:=	$(CC) -E $(COMMON_CFLAGS_$(ARCH))
+PP			:=	$(CC) -E $(COMMON_CFLAGS_$(ARCH))
 
-COMMON_ASFLAGS		+=	-nostdinc -ffreestanding -Wa,--fatal-warnings	\
-				-Werror -Wmissing-include-dirs			\
-				-D__ASSEMBLY__ $(COMMON_ASFLAGS_$(ARCH))	\
-				${INCLUDES}
-COMMON_CFLAGS		+=	-nostdinc -ffreestanding -Wall	-Werror 	\
-				-Wmissing-include-dirs $(COMMON_CFLAGS_$(ARCH))	\
+CLANG_WARNINGS		+=	-nostdinc -ffreestanding -Wall	\
+				-Wmissing-include-dirs $(CLANG_CFLAGS_$(ARCH))	\
+				-Wlogical-op-parentheses \
+				-Wno-initializer-overrides \
+				-Wno-sometimes-uninitialized \
+				-Wno-unused-function \
+				-Wno-unused-variable \
+				-Wno-unused-parameter \
+				-Wno-tautological-compare \
+				-Wno-memset-transposed-args \
+				-Wno-parentheses
+
+CLANG_CFLAGS		+= 	-Wno-error=deprecated-declarations \
+				-Wno-error=cpp \
+				$(CLANG_WARNINGS)
+endif #(clang)
+
+ifneq ($(findstring gcc,$(notdir $(CC))),)
+GCC_CFLAGS_aarch32	:=	${march32-directive} -mno-unaligned-access
+GCC_CFLAGS_aarch64	:=	-mgeneral-regs-only
+
+GCC_ASFLAGS_aarch32	:=	${march32-directive}
+GCC_ASFLAGS_aarch64	:=	-mgeneral-regs-only ${march64-directive}
+
+GCC_WARNINGS		+=	-nostdinc -ffreestanding -Wall -Werror 	\
+				-Wmissing-include-dirs  $(GCC_CFLAGS_$(ARCH)) \
 				-std=gnu99 -Os
+
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523
+GCC_CFLAGS		+=	$(call cc_option, --param=min-pagesize=0)
+GCC_CFLAGS		+= 	$(GCC_WARNINGS)
+endif #(gcc)
+
+COMMON_CFLAGS_aarch64	+=	${march64-directive} -mstrict-align \
+				$(CLANG_CFLAGS_$(ARCH)) $(GCC_CFLAGS_$(ARCH))
+
+COMMON_CFLAGS		+=	$(COMMON_CFLAGS_$(ARCH))
 COMMON_CFLAGS		+=	-ffunction-sections -fdata-sections
 
 # Get the content of CFLAGS user defined value last so they are appended after
 # the options defined in the Makefile
-COMMON_CFLAGS 		+=	${CFLAGS} ${INCLUDES}
+COMMON_CFLAGS 		+=	${CLANG_CFLAGS} ${GCC_CFLAGS} ${INCLUDES}
+
+COMMON_ASFLAGS		+=	-nostdinc -ffreestanding -Wa,--fatal-warnings	\
+				-Werror -Wmissing-include-dirs			\
+				-D__ASSEMBLY__ $(GCC_ASFLAGS_$(ARCH))	\
+				${INCLUDES}
 
 COMMON_LDFLAGS		+=	${LDFLAGS} --fatal-warnings -O1 --gc-sections --build-id=none
 
-CC			:=	${CROSS_COMPILE}gcc
-CPP			:=	${CROSS_COMPILE}cpp
-AS			:=	${CROSS_COMPILE}gcc
-AR			:=	${CROSS_COMPILE}ar
-LD			:=	${CROSS_COMPILE}ld
-OC			:=	${CROSS_COMPILE}objcopy
-OD			:=	${CROSS_COMPILE}objdump
-NM			:=	${CROSS_COMPILE}nm
-PP			:=	${CROSS_COMPILE}gcc
-
 # With ld.bfd version 2.39 and newer new warnings are added. Skip those since we
 # are not loaded by a elf loader.
 COMMON_LDFLAGS		+=	$(call ld_option, --no-warn-rwx-segments)
 
-# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523
-COMMON_CFLAGS		+=	$(call cc_option, --param=min-pagesize=0)
-
 ################################################################################
 
 TFTF_SOURCES		:= ${FRAMEWORK_SOURCES}	${TESTS_SOURCES} ${PLAT_SOURCES} ${LIBC_SRCS} ${LIBFDT_SRCS}
@@ -590,6 +630,9 @@
 # The EL3 test payload is only supported in AArch64. It has an independent build
 # system.
 .PHONY: el3_payload
+# TODO: EL3 test payload currently is supported for GCC only. It has an independent
+# build system and support for Clang to be added.
+ifneq ($(findstring gcc,$(notdir $(CC))),)
 ifneq (${ARCH},aarch32)
 ifneq ($(wildcard ${EL3_PAYLOAD_PLAT_MAKEFILE_FULL}),)
 el3_payload: $(BUILD_DIR)
@@ -599,6 +642,7 @@
 all: el3_payload
 endif
 endif
+endif
 
 doc:
 	@echo "  BUILD DOCUMENTATION"
diff --git a/docs/getting_started/build.rst b/docs/getting_started/build.rst
index 70b7edc..111306d 100644
--- a/docs/getting_started/build.rst
+++ b/docs/getting_started/build.rst
@@ -16,6 +16,25 @@
 
        export CROSS_COMPILE=<path-to-aarch32-gcc>/bin/arm-eabi-
 
+-  It is possible to build TF-A Tests using clang (currently AArch64 only). To
+   do so ``CC`` needs to point to the clang binary. Only the compiler is switched;
+   the assembler and linker need to be provided by the GNU toolchain, thus
+   ``CROSS_COMPILE`` should be set as described above.
+
+   clang will be selected when the base name of the path assigned to ``CC``
+   contains the string 'clang'.
+
+-  For AArch64 using clang:
+
+   .. code:: shell
+
+       export CROSS_COMPILE=<path-to-aarch64-gcc>/bin/aarch64-none-elf-
+       make CC=<path-to-clang>/bin/clang PLAT=<platform> tftf
+
+-  Currently, the following TF-A Tests targets are supported for clang build:
+
+   ``tftf, ivy, realm, cactus, cactus_mm, ns_bl1u``
+
 -  Change to the root directory of the TF-A Tests source tree and build.
 
    For AArch64:
diff --git a/spm/common/sp_tests/sp_test_ffa.c b/spm/common/sp_tests/sp_test_ffa.c
index 614770e..73db187 100644
--- a/spm/common/sp_tests/sp_test_ffa.c
+++ b/spm/common/sp_tests/sp_test_ffa.c
@@ -34,7 +34,7 @@
 			       FFA_PARTITION_DIRECT_REQ_RECV |
 			       FFA_PARTITION_DIRECT_REQ_SEND |
 			       FFA_PARTITION_NOTIFICATION),
-		.uuid = sp_uuids[0]
+		.uuid = {PRIMARY_UUID}
 	},
 	/* Secondary partition info */
 	{
@@ -44,7 +44,7 @@
 			       FFA_PARTITION_DIRECT_REQ_RECV |
 			       FFA_PARTITION_DIRECT_REQ_SEND |
 			       FFA_PARTITION_NOTIFICATION),
-		.uuid = sp_uuids[1]
+		.uuid = {SECONDARY_UUID}
 	},
 	/* Tertiary partition info */
 	{
@@ -54,7 +54,7 @@
 			       FFA_PARTITION_DIRECT_REQ_RECV |
 			       FFA_PARTITION_DIRECT_REQ_SEND |
 			       FFA_PARTITION_NOTIFICATION),
-		.uuid = sp_uuids[2]
+		.uuid = {TERTIARY_UUID}
 	},
 	/* Ivy partition info */
 	{
@@ -63,7 +63,7 @@
 		.properties = (FFA_PARTITION_AARCH64_EXEC |
 			       FFA_PARTITION_DIRECT_REQ_RECV |
 			       FFA_PARTITION_DIRECT_REQ_SEND),
-		.uuid = sp_uuids[3]
+		.uuid = {IVY_UUID}
 	},
 	/* EL3 SPMD logical partition */
 	{
@@ -71,7 +71,7 @@
 		.exec_context = EL3_SPMD_LP_EXEC_CTX_COUNT,
 		.properties = (FFA_PARTITION_AARCH64_EXEC |
 			       FFA_PARTITION_DIRECT_REQ_SEND),
-		.uuid = sp_uuids[4]
+		.uuid = {EL3_SPMD_LP_UUID}
 	},
 };
 
diff --git a/tftf/tests/runtime_services/secure_service/test_ffa_setup_and_discovery.c b/tftf/tests/runtime_services/secure_service/test_ffa_setup_and_discovery.c
index 4b0df1c..80a3015 100644
--- a/tftf/tests/runtime_services/secure_service/test_ffa_setup_and_discovery.c
+++ b/tftf/tests/runtime_services/secure_service/test_ffa_setup_and_discovery.c
@@ -31,7 +31,7 @@
 		.properties = FFA_PARTITION_AARCH64_EXEC |
 			      FFA_PARTITION_DIRECT_REQ_RECV |
 			      FFA_PARTITION_NOTIFICATION,
-		.uuid = sp_uuids[0]
+		.uuid = {PRIMARY_UUID}
 	},
 	/* Secondary partition info */
 	{
@@ -40,7 +40,7 @@
 		.properties = FFA_PARTITION_AARCH64_EXEC |
 			      FFA_PARTITION_DIRECT_REQ_RECV |
 			      FFA_PARTITION_NOTIFICATION,
-		.uuid = sp_uuids[1]
+		.uuid = {SECONDARY_UUID}
 	},
 	/* Tertiary partition info */
 	{
@@ -49,7 +49,7 @@
 		.properties = FFA_PARTITION_AARCH64_EXEC |
 			      FFA_PARTITION_DIRECT_REQ_RECV |
 			      FFA_PARTITION_NOTIFICATION,
-		.uuid = sp_uuids[2]
+		.uuid = {TERTIARY_UUID}
 	},
 	/* Ivy partition info */
 	{
@@ -57,7 +57,7 @@
 		.exec_context = IVY_EXEC_CTX_COUNT,
 		.properties = FFA_PARTITION_AARCH64_EXEC |
 			      FFA_PARTITION_DIRECT_REQ_RECV,
-		.uuid = sp_uuids[3]
+		.uuid = {IVY_UUID}
 	}
 };