xref: /rk3399_ARM-atf/Makefile (revision df64a55b3a675a61b88bb4d0a357ba7085000cdc)
14f6ad66aSAchin Gupta#
2e83b0cadSDan Handley# Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
34f6ad66aSAchin Gupta#
44f6ad66aSAchin Gupta# Redistribution and use in source and binary forms, with or without
54f6ad66aSAchin Gupta# modification, are permitted provided that the following conditions are met:
64f6ad66aSAchin Gupta#
74f6ad66aSAchin Gupta# Redistributions of source code must retain the above copyright notice, this
84f6ad66aSAchin Gupta# list of conditions and the following disclaimer.
94f6ad66aSAchin Gupta#
104f6ad66aSAchin Gupta# Redistributions in binary form must reproduce the above copyright notice,
114f6ad66aSAchin Gupta# this list of conditions and the following disclaimer in the documentation
124f6ad66aSAchin Gupta# and/or other materials provided with the distribution.
134f6ad66aSAchin Gupta#
144f6ad66aSAchin Gupta# Neither the name of ARM nor the names of its contributors may be used
154f6ad66aSAchin Gupta# to endorse or promote products derived from this software without specific
164f6ad66aSAchin Gupta# prior written permission.
174f6ad66aSAchin Gupta#
184f6ad66aSAchin Gupta# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
194f6ad66aSAchin Gupta# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
204f6ad66aSAchin Gupta# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
214f6ad66aSAchin Gupta# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
224f6ad66aSAchin Gupta# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
234f6ad66aSAchin Gupta# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
244f6ad66aSAchin Gupta# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
254f6ad66aSAchin Gupta# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
264f6ad66aSAchin Gupta# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
274f6ad66aSAchin Gupta# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
284f6ad66aSAchin Gupta# POSSIBILITY OF SUCH DAMAGE.
294f6ad66aSAchin Gupta#
304f6ad66aSAchin Gupta
314f6ad66aSAchin Gupta# Decrease the verbosity of the make script
324f6ad66aSAchin Gupta# can be made verbose by passing V=1 at the make command line
334f6ad66aSAchin Guptaifdef V
34eaaeece2SJames Morrissey  KBUILD_VERBOSE = ${V}
354f6ad66aSAchin Guptaelse
364f6ad66aSAchin Gupta  KBUILD_VERBOSE = 0
374f6ad66aSAchin Guptaendif
384f6ad66aSAchin Gupta
3936eaaf37SIan SprayCHECKPATCH_ARGS		=	--no-tree --no-signoff
4036eaaf37SIan SprayCHECKCODE_ARGS		=	--no-patch --no-tree --no-signoff
4136eaaf37SIan Spray
42eaaeece2SJames Morrisseyifeq "${KBUILD_VERBOSE}" "0"
434f6ad66aSAchin Gupta	Q=@
4436eaaf37SIan Spray	CHECKCODE_ARGS	+=	--no-summary --terse
454f6ad66aSAchin Guptaelse
464f6ad66aSAchin Gupta	Q=
474f6ad66aSAchin Guptaendif
484f6ad66aSAchin Gupta
494f6ad66aSAchin GuptaDEBUG	?= 0
50eaaeece2SJames Morrissey
51eaaeece2SJames Morrisseyifneq (${DEBUG}, 0)
52eaaeece2SJames Morrissey	BUILD_TYPE	:=	debug
53eaaeece2SJames Morrisseyelse
54eaaeece2SJames Morrissey	BUILD_TYPE	:=	release
55eaaeece2SJames Morrisseyendif
56eaaeece2SJames Morrissey
57d7a6b0f8SRyan HarkinBL_COMMON_OBJS		:=	misc_helpers.o		\
58d7a6b0f8SRyan Harkin				cache_helpers.o		\
59d7a6b0f8SRyan Harkin				tlb_helpers.o		\
60d7a6b0f8SRyan Harkin				std.o			\
61d7a6b0f8SRyan Harkin				bl_common.o		\
62d7a6b0f8SRyan Harkin				platform_helpers.o
63d7a6b0f8SRyan Harkin
6425cff83eSRyan HarkinARCH 			?=	aarch64
654f6ad66aSAchin Gupta
6625cff83eSRyan Harkin# By default, build all platforms available
6725cff83eSRyan HarkinPLAT			?=	all
684f6ad66aSAchin Gupta
69eaaeece2SJames MorrisseyBUILD_BASE		:=	./build
7025cff83eSRyan HarkinBUILD_PLAT		:=	${BUILD_BASE}/${PLAT}/${BUILD_TYPE}
7125cff83eSRyan HarkinBUILD_BL1		:=	${BUILD_PLAT}/bl1
7225cff83eSRyan HarkinBUILD_BL2		:=	${BUILD_PLAT}/bl2
7325cff83eSRyan HarkinBUILD_BL31		:=	${BUILD_PLAT}/bl31
74eaaeece2SJames MorrisseyBUILD_DIRS		:=	${BUILD_BL1} ${BUILD_BL2} ${BUILD_BL31}
754f6ad66aSAchin Gupta
7625cff83eSRyan HarkinPLATFORMS		:=	$(shell ls -I common plat/)
7772ee3314SRyan HarkinHELP_PLATFORMS		:=	$(shell echo ${PLATFORMS} | sed 's/ /|/g')
7872ee3314SRyan Harkin
7925cff83eSRyan Harkinifeq (${PLAT},)
8025cff83eSRyan Harkin  $(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform.")
8125cff83eSRyan Harkinendif
8225cff83eSRyan Harkinifeq ($(findstring ${PLAT},${PLATFORMS} all),)
8325cff83eSRyan Harkin  $(error "Error: Invalid platform. The following platforms are available: ${PLATFORMS}")
8425cff83eSRyan Harkinendif
854f6ad66aSAchin Gupta
8625cff83eSRyan Harkinifeq (${PLAT},all)
8725cff83eSRyan Harkinall: ${PLATFORMS}
8825cff83eSRyan Harkinelse
8925cff83eSRyan Harkinall: msg_start bl1 bl2 bl31
9025cff83eSRyan Harkinendif
9125cff83eSRyan Harkin
9225cff83eSRyan Harkinmsg_start:
9325cff83eSRyan Harkin	@echo "Building ${PLAT}"
9425cff83eSRyan Harkin
9525cff83eSRyan Harkin${PLATFORMS}:
9625cff83eSRyan Harkin	${MAKE} PLAT=$@ all
9725cff83eSRyan Harkin
9825cff83eSRyan Harkinifneq (${PLAT},all)
9925cff83eSRyan Harkin  $(info Including ${PLAT}/platform.mk)
10025cff83eSRyan Harkin  include plat/${PLAT}/platform.mk
1014f6ad66aSAchin Gupta  $(info Including bl1.mk)
1024f6ad66aSAchin Gupta  include bl1/bl1.mk
1034f6ad66aSAchin Gupta  $(info Including bl2.mk)
1044f6ad66aSAchin Gupta  include bl2/bl2.mk
1054f6ad66aSAchin Gupta  $(info Including bl31.mk)
1064f6ad66aSAchin Gupta  include bl31/bl31.mk
10725cff83eSRyan Harkinendif
1084f6ad66aSAchin Gupta
10936eaaf37SIan Spray.PHONY:			all msg_start ${PLATFORMS} dump clean realclean distclean bl1 bl2 bl31 cscope locate-checkpatch checkcodebase checkpatch
110eaaeece2SJames Morrissey.SUFFIXES:
111eaaeece2SJames Morrissey
112eaaeece2SJames Morrissey
11325cff83eSRyan HarkinBL1_OBJS		:= 	$(addprefix ${BUILD_BL1}/,${BL1_OBJS} ${BL_COMMON_OBJS} ${PLAT_BL_COMMON_OBJS})
11425cff83eSRyan HarkinBL2_OBJS		:= 	$(addprefix ${BUILD_BL2}/,${BL2_OBJS} ${BL_COMMON_OBJS} ${PLAT_BL_COMMON_OBJS})
11525cff83eSRyan HarkinBL31_OBJS		:= 	$(addprefix ${BUILD_BL31}/,${BL31_OBJS} ${BL_COMMON_OBJS} ${PLAT_BL_COMMON_OBJS})
116eaaeece2SJames MorrisseyBL1_MAPFILE		:= 	$(addprefix ${BUILD_BL1}/,${BL1_MAPFILE})
117eaaeece2SJames MorrisseyBL2_MAPFILE		:= 	$(addprefix ${BUILD_BL2}/,${BL2_MAPFILE})
118eaaeece2SJames MorrisseyBL31_MAPFILE		:= 	$(addprefix ${BUILD_BL31}/,${BL31_MAPFILE})
119eaaeece2SJames MorrisseyBL1_LINKERFILE		:= 	$(addprefix ${BUILD_BL1}/,${BL1_LINKERFILE})
120eaaeece2SJames MorrisseyBL2_LINKERFILE		:= 	$(addprefix ${BUILD_BL2}/,${BL2_LINKERFILE})
121eaaeece2SJames MorrisseyBL31_LINKERFILE		:= 	$(addprefix ${BUILD_BL31}/,${BL31_LINKERFILE})
1224f6ad66aSAchin Gupta
123d7a6b0f8SRyan HarkinINCLUDES		+=	-Ilib/include/			\
124d7a6b0f8SRyan Harkin				-Iinclude/${ARCH}/		\
125d7a6b0f8SRyan Harkin				-Iinclude/			\
126d7a6b0f8SRyan Harkin				-Iarch/system/gic		\
127d7a6b0f8SRyan Harkin				-Icommon/psci			\
128d7a6b0f8SRyan Harkin				-Iinclude/stdlib		\
129d7a6b0f8SRyan Harkin				-Iinclude/stdlib/sys		\
130d7a6b0f8SRyan Harkin				-Iplat/${PLAT}			\
131d7a6b0f8SRyan Harkin				${PLAT_INCLUDES}
1324f6ad66aSAchin Gupta
1330af6d64dSHarry LiebelASFLAGS			+= 	-nostdinc -ffreestanding -Wa,--fatal-warnings	\
134*df64a55bSSandrine Bailleux				-mgeneral-regs-only -D__ASSEMBLY__ ${INCLUDES}	\
135*df64a55bSSandrine Bailleux				-DDEBUG=${DEBUG}
1364f603683SHarry LiebelCFLAGS			:= 	-nostdinc -pedantic -ffreestanding -Wall	\
1374f603683SHarry Liebel				-Werror -mgeneral-regs-only -std=c99 -c -Os	\
1384f603683SHarry Liebel				-DDEBUG=${DEBUG} ${INCLUDES} ${CFLAGS}
1394f6ad66aSAchin Gupta
1403e850a84SSandrine BailleuxLDFLAGS			+=	--fatal-warnings -O1
141eaaeece2SJames MorrisseyBL1_LDFLAGS		:=	-Map=${BL1_MAPFILE} --script ${BL1_LINKERFILE} --entry=${BL1_ENTRY_POINT}
142eaaeece2SJames MorrisseyBL2_LDFLAGS		:=	-Map=${BL2_MAPFILE} --script ${BL2_LINKERFILE} --entry=${BL2_ENTRY_POINT}
143eaaeece2SJames MorrisseyBL31_LDFLAGS		:=	-Map=${BL31_MAPFILE} --script ${BL31_LINKERFILE} --entry=${BL31_ENTRY_POINT}
1444f6ad66aSAchin Gupta
1454f6ad66aSAchin Gupta
1464f6ad66aSAchin Guptavpath %.ld.S bl1:bl2:bl31
1474f6ad66aSAchin Guptavpath %.c bl1:bl2:bl31
1484f6ad66aSAchin Guptavpath %.c bl1/${ARCH}:bl2/${ARCH}:bl31/${ARCH}
1494f6ad66aSAchin Guptavpath %.S bl1/${ARCH}:bl2/${ARCH}:bl31/${ARCH}
1504f6ad66aSAchin Gupta
1514f6ad66aSAchin Gupta
152eaaeece2SJames Morrisseyifneq (${DEBUG}, 0)
1534f6ad66aSAchin Gupta#CFLAGS			+= 	-g -O0
1544f6ad66aSAchin GuptaCFLAGS			+= 	-g
1554f6ad66aSAchin Gupta# -save-temps -fverbose-asm
1564f6ad66aSAchin GuptaASFLAGS			+= 	-g -Wa,--gdwarf-2
1574f6ad66aSAchin Guptaendif
1584f6ad66aSAchin Gupta
1594f6ad66aSAchin Gupta
160eaaeece2SJames MorrisseyCC			:=	${CROSS_COMPILE}gcc
161eaaeece2SJames MorrisseyCPP			:=	${CROSS_COMPILE}cpp
162eaaeece2SJames MorrisseyAS			:=	${CROSS_COMPILE}gcc
163eaaeece2SJames MorrisseyAR			:=	${CROSS_COMPILE}ar
164eaaeece2SJames MorrisseyLD			:=	${CROSS_COMPILE}ld
165eaaeece2SJames MorrisseyOC			:=	${CROSS_COMPILE}objcopy
166eaaeece2SJames MorrisseyOD			:=	${CROSS_COMPILE}objdump
167eaaeece2SJames MorrisseyNM			:=	${CROSS_COMPILE}nm
168eaaeece2SJames MorrisseyPP			:=	${CROSS_COMPILE}gcc -E ${CFLAGS}
1694f6ad66aSAchin Gupta
1704f6ad66aSAchin Gupta
17125cff83eSRyan Harkinbl1:			${BUILD_BL1} ${BUILD_PLAT}/bl1.bin
17225cff83eSRyan Harkinbl2:			${BUILD_BL2} ${BUILD_PLAT}/bl2.bin
17325cff83eSRyan Harkinbl31:			${BUILD_BL31} ${BUILD_PLAT}/bl31.bin
1744f6ad66aSAchin Gupta
17536eaaf37SIan SprayBASE_COMMIT		?=	origin/master
17636eaaf37SIan Spray
17725cff83eSRyan Harkinifeq (${PLAT},all)
17825cff83eSRyan Harkin  ifeq (${MAKECMDGOALS},clean)
17925cff83eSRyan Harkin    $(error "Please select a platform with PLAT=<platform>. You can use 'make distclean' to clean up all platform builds")
18025cff83eSRyan Harkin  endif
18125cff83eSRyan Harkinendif
18236eaaf37SIan Spray
18336eaaf37SIan Spraylocate-checkpatch:
18436eaaf37SIan Sprayifndef CHECKPATCH
18536eaaf37SIan Spray	$(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/script/checkpatch.pl")
18636eaaf37SIan Sprayelse
18736eaaf37SIan Sprayifeq (,$(wildcard ${CHECKPATCH}))
18836eaaf37SIan Spray	$(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/script/checkpatch.pl")
18936eaaf37SIan Sprayendif
19036eaaf37SIan Sprayendif
19136eaaf37SIan Spray
1924f6ad66aSAchin Guptaclean:
1934f6ad66aSAchin Gupta			@echo "  CLEAN"
19425cff83eSRyan Harkin			${Q}rm -rf ${BUILD_PLAT}
1954f6ad66aSAchin Gupta
196eaaeece2SJames Morrisseyrealclean distclean:
197eaaeece2SJames Morrissey			@echo "  REALCLEAN"
198eaaeece2SJames Morrissey			${Q}rm -rf ${BUILD_BASE}
19935fab8c9SJoakim Bech			${Q}rm -f ${CURDIR}/cscope.*
2004f6ad66aSAchin Gupta
2014f6ad66aSAchin Guptadump:
2024f6ad66aSAchin Gupta			@echo "  OBJDUMP"
203eaaeece2SJames Morrissey			${Q}${OD} -d ${BUILD_BL1}/bl1.elf > ${BUILD_BL1}/bl1.dump
204eaaeece2SJames Morrissey			${Q}${OD} -d ${BUILD_BL2}/bl2.elf > ${BUILD_BL2}/bl2.dump
205eaaeece2SJames Morrissey			${Q}${OD} -d ${BUILD_BL31}/bl31.elf > ${BUILD_BL31}/bl31.dump
2064f6ad66aSAchin Gupta
20736eaaf37SIan Spraycheckcodebase:		locate-checkpatch
20836eaaf37SIan Spray			@echo "  CHECKING STYLE"
20936eaaf37SIan Spray			@if test -d .git ; then	\
21036eaaf37SIan Spray				git ls-files | while read GIT_FILE ; do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ; done ;	\
21136eaaf37SIan Spray			 else			\
21236eaaf37SIan Spray				 find . -type f -not -iwholename "*.git*" -not -iwholename "*build*" -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ;	\
21336eaaf37SIan Spray			 fi
21436eaaf37SIan Spray
21536eaaf37SIan Spraycheckpatch:		locate-checkpatch
21636eaaf37SIan Spray			@echo "  CHECKING STYLE"
21736eaaf37SIan Spray			@git format-patch --stdout ${BASE_COMMIT} | ${CHECKPATCH} ${CHECKPATCH_ARGS} - || true
21836eaaf37SIan Spray
219eaaeece2SJames Morrissey${BUILD_DIRS}:
220eaaeece2SJames Morrissey			${Q}mkdir -p "$@"
221eaaeece2SJames Morrissey
222eaaeece2SJames Morrissey
223eaaeece2SJames Morrissey${BUILD_BL1}/%.o:	%.S
2244f6ad66aSAchin Gupta			@echo "  AS      $<"
225eaaeece2SJames Morrissey			${Q}${AS} ${ASFLAGS} -c $< -o $@
2264f6ad66aSAchin Gupta
227eaaeece2SJames Morrissey${BUILD_BL2}/%.o:	%.S
228eaaeece2SJames Morrissey			@echo "  AS      $<"
229eaaeece2SJames Morrissey			${Q}${AS} ${ASFLAGS} -c $< -o $@
230eaaeece2SJames Morrissey
231eaaeece2SJames Morrissey${BUILD_BL31}/%.o:	%.S
232eaaeece2SJames Morrissey			@echo "  AS      $<"
233eaaeece2SJames Morrissey			${Q}${AS} ${ASFLAGS} -c $< -o $@
234eaaeece2SJames Morrissey
235eaaeece2SJames Morrissey${BUILD_BL1}/%.o:	%.c
2364f6ad66aSAchin Gupta			@echo "  CC      $<"
237eaaeece2SJames Morrissey			${Q}${CC} ${CFLAGS} -c $< -o $@
2384f6ad66aSAchin Gupta
239eaaeece2SJames Morrissey${BUILD_BL2}/%.o:	%.c
240eaaeece2SJames Morrissey			@echo "  CC      $<"
241eaaeece2SJames Morrissey			${Q}${CC} ${CFLAGS} -c $< -o $@
242eaaeece2SJames Morrissey
243eaaeece2SJames Morrissey${BUILD_BL31}/%.o:	%.c
244eaaeece2SJames Morrissey			@echo "  CC      $<"
245eaaeece2SJames Morrissey			${Q}${CC} ${CFLAGS} -c $< -o $@
246eaaeece2SJames Morrissey
247eaaeece2SJames Morrissey${BUILD_BL1}/%.ld:	%.ld.S
24825cff83eSRyan Harkin			@echo "  PP      $<"
249eaaeece2SJames Morrissey			${Q}${AS} ${ASFLAGS} -P -E $< -o $@
250eaaeece2SJames Morrissey
251eaaeece2SJames Morrissey${BUILD_BL2}/%.ld:	%.ld.S
25225cff83eSRyan Harkin			@echo "  PP      $<"
253eaaeece2SJames Morrissey			${Q}${AS} ${ASFLAGS} -P -E $< -o $@
254eaaeece2SJames Morrissey
255eaaeece2SJames Morrissey${BUILD_BL31}/%.ld:	%.ld.S
25625cff83eSRyan Harkin			@echo "  PP      $<"
257eaaeece2SJames Morrissey			${Q}${AS} ${ASFLAGS} -P -E $< -o $@
2584f6ad66aSAchin Gupta
2594f6ad66aSAchin Gupta
260eaaeece2SJames Morrissey${BUILD_BL1}/bl1.elf:	${BL1_OBJS} ${BL1_LINKERFILE}
2614f6ad66aSAchin Gupta			@echo "  LD      $@"
262eaaeece2SJames Morrissey			${Q}${LD} -o $@ ${LDFLAGS} ${BL1_LDFLAGS} ${BL1_OBJS}
263eaaeece2SJames Morrissey
264eaaeece2SJames Morrissey${BUILD_BL2}/bl2.elf:	${BL2_OBJS} ${BL2_LINKERFILE}
265eaaeece2SJames Morrissey			@echo "  LD      $@"
266eaaeece2SJames Morrissey			${Q}${LD} -o $@ ${LDFLAGS} ${BL2_LDFLAGS} ${BL2_OBJS}
267eaaeece2SJames Morrissey
268eaaeece2SJames Morrissey${BUILD_BL31}/bl31.elf:	${BL31_OBJS} ${BL31_LINKERFILE}
269eaaeece2SJames Morrissey			@echo "  LD      $@"
270eaaeece2SJames Morrissey			${Q}${LD} -o $@ ${LDFLAGS} ${BL31_LDFLAGS} ${BL31_OBJS}
271eaaeece2SJames Morrissey
27225cff83eSRyan Harkin${BUILD_PLAT}/bl1.bin:	${BUILD_BL1}/bl1.elf
27325cff83eSRyan Harkin			@echo "  BIN     $@"
274eaaeece2SJames Morrissey			${Q}${OC} -O binary $< $@
275eaaeece2SJames Morrissey			@echo
2764f6ad66aSAchin Gupta			@echo "Built $@ successfully"
2774f6ad66aSAchin Gupta			@echo
2784f6ad66aSAchin Gupta
27925cff83eSRyan Harkin${BUILD_PLAT}/bl2.bin:	${BUILD_BL2}/bl2.elf
28025cff83eSRyan Harkin			@echo "  BIN     $@"
281eaaeece2SJames Morrissey			${Q}${OC} -O binary $< $@
282eaaeece2SJames Morrissey			@echo
2834f6ad66aSAchin Gupta			@echo "Built $@ successfully"
2844f6ad66aSAchin Gupta			@echo
2854f6ad66aSAchin Gupta
28625cff83eSRyan Harkin${BUILD_PLAT}/bl31.bin:	${BUILD_BL31}/bl31.elf
28725cff83eSRyan Harkin			@echo "  BIN     $@"
288eaaeece2SJames Morrissey			${Q}${OC} -O binary $< $@
289eaaeece2SJames Morrissey			@echo
2904f6ad66aSAchin Gupta			@echo "Built $@ successfully"
2914f6ad66aSAchin Gupta			@echo
29272ee3314SRyan Harkin
29335fab8c9SJoakim Bechcscope:
29435fab8c9SJoakim Bech	@echo "  CSCOPE"
29535fab8c9SJoakim Bech	${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files
29635fab8c9SJoakim Bech	${Q}cscope -b -q -k
29735fab8c9SJoakim Bech
29872ee3314SRyan Harkinhelp:
29936eaaf37SIan Spray	@echo "usage: ${MAKE} PLAT=<all|${HELP_PLATFORMS}> <all|bl1|bl2|bl31|distclean|clean|checkcodebase|checkpatch|dump>"
30072ee3314SRyan Harkin	@echo ""
30172ee3314SRyan Harkin	@echo "PLAT is used to specify which platform you wish to build."
30272ee3314SRyan Harkin	@echo ""
30372ee3314SRyan Harkin	@echo "Supported Targets:"
30436eaaf37SIan Spray	@echo "  all            Build the BL1, BL2 and BL31 binaries"
30536eaaf37SIan Spray	@echo "  bl1            Build the BL1 binary"
30636eaaf37SIan Spray	@echo "  bl2            Build the BL2 binary"
30736eaaf37SIan Spray	@echo "  bl31           Build the BL31 binary"
30836eaaf37SIan Spray	@echo "  checkcodebase  Check the coding style of the entire source tree"
30936eaaf37SIan Spray	@echo "  checkpatch     Check the coding style on changes in the current"
31036eaaf37SIan Spray	@echo "                 branch against BASE_COMMIT (default origin/master)"
31172ee3314SRyan Harkin	@echo "  clean          Clean the build for the selected platform"
31235fab8c9SJoakim Bech	@echo "  cscope     Generate cscope index"
31372ee3314SRyan Harkin	@echo "  distclean      Remove all build artifacts for all platforms"
31472ee3314SRyan Harkin	@echo "  dump           Generate object file dumps"
31572ee3314SRyan Harkin	@echo ""
31672ee3314SRyan Harkin	@echo "note: most build targets require PLAT to be set to a specific platform."
31772ee3314SRyan Harkin	@echo ""
31872ee3314SRyan Harkin	@echo "example: build all targets for the FVP platform:"
31972ee3314SRyan Harkin	@echo "  CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all"
320