1 # SPDX-License-Identifier: GPL-2.0+
3 # (C) Copyright 2000-2011
10 # Texas Instruments Incorporated - http://www.ti.com/
12 # Based on top-level Makefile.
17 # Create output directory if not already present
18 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
20 include $(srctree)/scripts/Kbuild.include
22 -include include/config/auto.conf
23 -include $(obj)/include/autoconf.mk
25 UBOOTINCLUDE := -I$(obj)/include $(UBOOTINCLUDE)
27 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
28 ifeq ($(CONFIG_TPL_BUILD),y)
29 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
32 ifeq ($(CONFIG_TPL_BUILD),y)
40 ifdef CONFIG_SPL_BUILD
42 ifeq ($(CONFIG_TPL_BUILD),y)
52 ifeq ($(obj)$(CONFIG_SUPPORT_SPL),spl)
53 $(error You cannot build SPL without enabling CONFIG_SUPPORT_SPL)
55 ifeq ($(obj)$(CONFIG_SUPPORT_TPL),tpl)
56 $(error You cannot build TPL without enabling CONFIG_SUPPORT_TPL)
59 include $(srctree)/config.mk
60 include $(srctree)/arch/$(ARCH)/Makefile
62 include $(srctree)/scripts/Makefile.lib
64 # Enable garbage collection of un-used sections for SPL
65 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
66 LDFLAGS_FINAL += --gc-sections
69 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
71 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
73 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
75 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
76 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
78 ifeq ($(CONFIG_TPL_BUILD),y)
79 libs-$(CONFIG_TPL_FRAMEWORK) += common/spl/
81 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
83 libs-y += common/init/
85 # Special handling for a few options which support SPL/TPL
86 ifeq ($(CONFIG_TPL_BUILD),y)
87 libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
88 libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
90 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
91 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
92 ifdef CONFIG_SPL_FRAMEWORK
93 libs-$(CONFIG_PARTITIONS) += disk/
98 libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/dwc3/
99 libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/cdns3/
102 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
103 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
104 libs-$(CONFIG_SPL_UNIT_TEST) += test/
106 head-y := $(addprefix $(obj)/,$(head-y))
107 libs-y := $(addprefix $(obj)/,$(libs-y))
108 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
110 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
113 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
114 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
115 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
118 u-boot-spl-init := $(head-y)
119 u-boot-spl-main := $(libs-y)
120 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
121 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
125 # First test whether there's a linker-script for the specific stage defined...
126 ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
127 # need to strip off double quotes
128 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
130 # ...then fall back to the generic SPL linker-script
131 ifneq ($(CONFIG_SPL_LDSCRIPT),)
132 # need to strip off double quotes
133 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
137 ifeq ($(wildcard $(LDSCRIPT)),)
138 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
140 ifeq ($(wildcard $(LDSCRIPT)),)
141 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
143 ifeq ($(wildcard $(LDSCRIPT)),)
144 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
146 ifeq ($(wildcard $(LDSCRIPT)),)
147 $(error could not find linker script)
150 # Special flags for CPP when processing the linker script.
151 # Pass the version down so we can handle backwards compatibility
154 -include $(srctree)/include/u-boot/u-boot.lds.h \
155 -include $(objtree)/include/config.h \
157 $(shell $(LD) --version | \
158 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
160 # Turn various CONFIG symbols into IMAGE symbols for easy reuse of
161 # the scripts between SPL and TPL.
162 ifneq ($(CONFIG_$(SPL_TPL_)MAX_SIZE),)
163 LDPPFLAGS += -DIMAGE_MAX_SIZE=$(CONFIG_$(SPL_TPL_)MAX_SIZE)
165 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
166 LDPPFLAGS += -DIMAGE_TEXT_BASE=$(CONFIG_$(SPL_TPL_)TEXT_BASE)
169 MKIMAGEOUTPUT ?= /dev/null
171 quiet_cmd_mkimage = MKIMAGE $@
172 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
173 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
175 quiet_cmd_mkfitimage = MKIMAGE $@
176 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \
177 $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT)
179 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
181 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
183 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
184 $(call if_changed,mkimage)
186 ifeq ($(CONFIG_SYS_SOC),"at91")
187 MKIMAGEFLAGS_boot.bin = -T atmelimage
189 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
190 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
192 $(obj)/boot.bin: $(obj)/../tools/atmel_pmecc_params
195 $(obj)/boot.bin: $(obj)/u-boot-spl.bin FORCE
196 $(call if_changed,mkimage)
198 ifdef CONFIG_ARCH_ZYNQ
199 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
201 ifdef CONFIG_ARCH_ZYNQMP
202 ifneq ($(CONFIG_PMUFW_INIT_FILE),"")
203 spl/boot.bin: zynqmp-check-pmufw
204 zynqmp-check-pmufw: FORCE
205 ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \
206 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false )
208 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \
209 -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))"
212 $(obj)/$(SPL_BIN)-align.bin: $(obj)/$(SPL_BIN).bin
213 @dd if=$< of=$@ conv=block,sync bs=4 2>/dev/null;
215 spl/boot.bin: $(obj)/$(SPL_BIN)-align.bin FORCE
216 $(call if_changed,mkimage)
219 INPUTS-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).sym
222 INPUTS-y += $(obj)/$(BOARD)-spl.bin
225 ifneq ($(CONFIG_TARGET_SOCFPGA_GEN5)$(CONFIG_TARGET_SOCFPGA_ARRIA10),)
226 INPUTS-y += $(obj)/$(SPL_BIN).sfp
229 ifdef CONFIG_ARCH_SUNXI
230 INPUTS-y += $(obj)/sunxi-spl.bin
232 ifdef CONFIG_NAND_SUNXI
233 INPUTS-y += $(obj)/sunxi-spl-with-ecc.bin
237 ifeq ($(CONFIG_SYS_SOC),"at91")
238 INPUTS-y += $(obj)/boot.bin
241 ifdef CONFIG_TPL_BUILD
242 INPUTS-$(CONFIG_TPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-tpl.bin \
243 $(obj)/u-boot-x86-reset16-tpl.bin
245 INPUTS-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-spl.bin \
246 $(obj)/u-boot-x86-reset16-spl.bin
249 INPUTS-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
250 INPUTS-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
252 INPUTS-$(CONFIG_ARCH_MEDIATEK) += $(obj)/u-boot-spl-mtk.bin
256 quiet_cmd_cat = CAT $@
257 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
259 quiet_cmd_copy = COPY $@
262 ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y)
263 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb
264 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y)
265 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo
266 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y)
267 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz
269 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit
272 # Build the .dtb file if:
273 # - we are not using OF_PLATDATA
274 # - we are using OF_CONTROL
275 # - we have either OF_SEPARATE or OF_HOSTFILE
277 ifeq ($(CONFIG_$(SPL_TPL_)OF_PLATDATA),)
278 ifneq ($(CONFIG_$(SPL_TPL_)OF_CONTROL),)
279 ifeq ($(CONFIG_OF_SEPARATE)$(CONFIG_OF_HOSTFILE),y)
285 ifneq ($(build_dtb),)
286 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
287 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
288 $(FINAL_DTB_CONTAINER) FORCE
289 $(call if_changed,cat)
291 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
292 $(call if_changed,copy)
294 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
295 $(call if_changed,copy)
298 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
299 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
300 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
301 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
303 $(obj)/$(SPL_BIN).dtb: $(obj)/dts/dt-$(SPL_NAME).dtb FORCE
304 $(call if_changed,copy)
306 pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
308 quiet_cmd_dtocc = DTOC C $@
309 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
311 quiet_cmd_dtoch = DTOC H $@
312 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
314 quiet_cmd_plat = PLAT $@
315 cmd_plat = $(CC) $(c_flags) -c $< -o $(filter-out $(PHONY),$@)
317 targets += $(obj)/dts/dt-platdata.o
318 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \
319 include/generated/dt-structs-gen.h prepare FORCE
320 $(call if_changed,plat)
324 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
326 include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
327 $(call if_changed,dtoch)
329 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
330 $(call if_changed,dtocc)
333 ifdef CONFIG_VAR_SIZE_SPL
334 VAR_SIZE_PARAM = --vs
338 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
339 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
340 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
341 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
344 quiet_cmd_objcopy = OBJCOPY $@
345 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
347 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
348 $(if $(CONFIG_$(SPL_TPL_)X86_16BIT_INIT),-R .start16 -R .resetvec)
350 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
351 $(call if_changed,objcopy)
353 OBJCOPYFLAGS_u-boot-x86-start16-spl.bin := -O binary -j .start16
354 $(obj)/u-boot-x86-start16-spl.bin: $(obj)/u-boot-spl FORCE
355 $(call if_changed,objcopy)
357 OBJCOPYFLAGS_u-boot-x86-start16-tpl.bin := -O binary -j .start16
358 $(obj)/u-boot-x86-start16-tpl.bin: $(obj)/u-boot-tpl FORCE
359 $(call if_changed,objcopy)
361 OBJCOPYFLAGS_u-boot-x86-reset16-spl.bin := -O binary -j .resetvec
362 $(obj)/u-boot-x86-reset16-spl.bin: $(obj)/u-boot-spl FORCE
363 $(call if_changed,objcopy)
365 OBJCOPYFLAGS_u-boot-x86-reset16-tpl.bin := -O binary -j .resetvec
366 $(obj)/u-boot-x86-reset16-tpl.bin: $(obj)/u-boot-tpl FORCE
367 $(call if_changed,objcopy)
369 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
371 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
372 LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
374 # Pick the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
375 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
376 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
379 ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
380 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1
382 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
384 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
385 $(call if_changed,mkimage)
387 quiet_cmd_mksunxiboot = MKSUNXI $@
388 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \
389 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@
390 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
391 $(call if_changed,mksunxiboot)
393 quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
394 cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
395 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
396 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \
397 -o $(CONFIG_SYS_NAND_OOBSIZE) \
398 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
399 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
401 $(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
402 $(call if_changed,sunxi_spl_image_builder)
405 # MediaTek's specific SPL build
406 MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \
407 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \
408 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
410 $(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE
411 $(call if_changed,mkimage)
413 quiet_cmd_sym ?= SYM $@
414 cmd_sym ?= $(OBJDUMP) -t $< > $@
415 $(obj)/$(SPL_BIN).sym: $(obj)/$(SPL_BIN) FORCE
416 $(call if_changed,sym)
418 # Rule to link u-boot-spl
419 # May be overridden by arch/$(ARCH)/config.mk
420 quiet_cmd_u-boot-spl ?= LD $@
421 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_$(@F)) \
422 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
423 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
424 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
426 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
428 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
429 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
430 $(call if_changed,u-boot-spl)
432 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
434 PHONY += $(u-boot-spl-dirs)
435 $(u-boot-spl-dirs): $(u-boot-spl-platdata) prepare
436 $(Q)$(MAKE) $(build)=$@
440 $(Q)$(MAKE) $(build)=$(obj)/.
442 quiet_cmd_cpp_lds = LDS $@
443 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
444 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
446 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
447 $(call if_changed_dep,cpp_lds)
449 # read all saved command lines
451 targets := $(wildcard $(sort $(targets)))
452 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
454 ifneq ($(cmd_files),)
455 $(cmd_files): ; # Do not try to update included dependency files
464 $(Q)$(MAKE) $(build)=dts dtbs
466 # Declare the contents of the .PHONY variable as phony. We keep that
467 # information in a variable so we can use it in if_changed and friends.
470 SPL_OF_LIST_TARGETS = $(patsubst %,dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
471 SHRUNK_ARCH_DTB = $(addprefix $(obj)/,$(SPL_OF_LIST_TARGETS))
473 $(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) dts_dir
474 $(call if_changed,fdtgrep)
476 targets += $(SPL_OF_LIST_TARGETS)
478 MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
479 -n "Multi DTB fit image for $(SPL_BIN)" -E \
480 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB))
482 $(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE
483 $(call if_changed,mkimage)
484 ifneq ($(SOURCE_DATE_EPOCH),)
485 touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit
486 chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit
489 $(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit
492 $(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit
496 tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE
497 $(call if_changed,mkfitimage)