1 # SPDX-License-Identifier: GPL-2.0+
3 # (C) Copyright 2000-2011
4 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 # Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
10 # Texas Instruments Incorporated - http://www.ti.com/
11 # Aneesh V <aneesh@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 $(obj)/include/autoconf.mk
25 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
26 ifeq ($(CONFIG_TPL_BUILD),y)
27 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
30 ifeq ($(CONFIG_TPL_BUILD),y)
36 ifdef CONFIG_SPL_BUILD
38 ifeq ($(CONFIG_TPL_BUILD),y)
48 ifeq ($(obj)$(CONFIG_SUPPORT_SPL),spl)
49 $(error You cannot build SPL without enabling CONFIG_SUPPORT_SPL)
51 ifeq ($(obj)$(CONFIG_SUPPORT_TPL),tpl)
52 $(error You cannot build TPL without enabling CONFIG_SUPPORT_TPL)
55 include $(srctree)/config.mk
56 include $(srctree)/arch/$(ARCH)/Makefile
58 include $(srctree)/scripts/Makefile.lib
60 # Enable garbage collection of un-used sections for SPL
61 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
62 LDFLAGS_FINAL += --gc-sections
65 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
67 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
69 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
71 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
72 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
74 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
75 libs-y += common/init/
77 # Special handling for a few options which support SPL/TPL
78 ifeq ($(CONFIG_TPL_BUILD),y)
79 libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
80 libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
82 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
83 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
84 ifdef CONFIG_SPL_FRAMEWORK
85 libs-$(CONFIG_PARTITIONS) += disk/
90 libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/dwc3/
93 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
94 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
96 head-y := $(addprefix $(obj)/,$(head-y))
97 libs-y := $(addprefix $(obj)/,$(libs-y))
98 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
100 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
103 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
104 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
105 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
108 u-boot-spl-init := $(head-y)
109 u-boot-spl-main := $(libs-y)
110 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
111 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
115 # First test whether there's a linker-script for the specific stage defined...
116 ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
117 # need to strip off double quotes
118 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
120 # ...then fall back to the generic SPL linker-script
121 ifneq ($(CONFIG_SPL_LDSCRIPT),)
122 # need to strip off double quotes
123 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
127 ifeq ($(wildcard $(LDSCRIPT)),)
128 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
130 ifeq ($(wildcard $(LDSCRIPT)),)
131 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
133 ifeq ($(wildcard $(LDSCRIPT)),)
134 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
136 ifeq ($(wildcard $(LDSCRIPT)),)
137 $(error could not find linker script)
140 # Special flags for CPP when processing the linker script.
141 # Pass the version down so we can handle backwards compatibility
144 -include $(srctree)/include/u-boot/u-boot.lds.h \
145 -include $(objtree)/include/config.h \
147 $(shell $(LD) --version | \
148 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
150 # Turn various CONFIG symbols into IMAGE symbols for easy reuse of
151 # the scripts between SPL and TPL.
152 ifneq ($(CONFIG_$(SPL_TPL_)MAX_SIZE),)
153 LDPPFLAGS += -DIMAGE_MAX_SIZE=$(CONFIG_$(SPL_TPL_)MAX_SIZE)
155 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
156 LDPPFLAGS += -DIMAGE_TEXT_BASE=$(CONFIG_$(SPL_TPL_)TEXT_BASE)
159 MKIMAGEOUTPUT ?= /dev/null
161 quiet_cmd_mkimage = MKIMAGE $@
162 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
163 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
165 quiet_cmd_mkfitimage = MKIMAGE $@
166 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \
167 $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT)
169 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
171 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
173 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
174 $(call if_changed,mkimage)
176 ifeq ($(CONFIG_SYS_SOC),"at91")
177 MKIMAGEFLAGS_boot.bin = -T atmelimage
179 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
180 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
182 $(obj)/boot.bin: $(obj)/../tools/atmel_pmecc_params
185 $(obj)/boot.bin: $(obj)/u-boot-spl.bin FORCE
186 $(call if_changed,mkimage)
188 ifdef CONFIG_ARCH_ZYNQ
189 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
191 ifdef CONFIG_ARCH_ZYNQMP
192 ifneq ($(CONFIG_PMUFW_INIT_FILE),"")
193 spl/boot.bin: zynqmp-check-pmufw
194 zynqmp-check-pmufw: FORCE
195 ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \
196 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false )
198 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \
199 -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))"
202 $(obj)/$(SPL_BIN)-align.bin: $(obj)/$(SPL_BIN).bin
203 @dd if=$< of=$@ conv=block,sync bs=4 2>/dev/null;
205 spl/boot.bin: $(obj)/$(SPL_BIN)-align.bin FORCE
206 $(call if_changed,mkimage)
209 ALL-y += $(obj)/$(SPL_BIN).bin
212 ALL-y += $(obj)/$(BOARD)-spl.bin
215 ifneq ($(CONFIG_TARGET_SOCFPGA_GEN5)$(CONFIG_TARGET_SOCFPGA_ARRIA10),)
216 ALL-y += $(obj)/$(SPL_BIN).sfp
219 ifdef CONFIG_ARCH_SUNXI
220 ALL-y += $(obj)/sunxi-spl.bin
222 ifdef CONFIG_NAND_SUNXI
223 ALL-y += $(obj)/sunxi-spl-with-ecc.bin
227 ifeq ($(CONFIG_SYS_SOC),"at91")
228 ALL-y += $(obj)/boot.bin
231 ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin
233 ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
234 ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
236 ALL-$(CONFIG_ARCH_MEDIATEK) += $(obj)/u-boot-spl-mtk.bin
240 quiet_cmd_cat = CAT $@
241 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
243 quiet_cmd_copy = COPY $@
246 ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y)
247 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb
248 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y)
249 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo
250 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y)
251 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz
253 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit
257 ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy)
258 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
259 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
260 $(FINAL_DTB_CONTAINER) FORCE
261 $(call if_changed,cat)
263 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
264 $(call if_changed,copy)
266 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
267 $(call if_changed,copy)
270 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
271 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
272 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
273 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
275 $(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE
276 $(call if_changed,copy)
278 pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
280 quiet_cmd_dtocc = DTOC C $@
281 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
283 quiet_cmd_dtoch = DTOC H $@
284 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
286 quiet_cmd_plat = PLAT $@
287 cmd_plat = $(CC) $(c_flags) -c $< -o $@
289 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \
290 include/generated/dt-structs-gen.h
291 $(call if_changed,plat)
295 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
297 include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
298 $(call if_changed,dtoch)
300 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
301 $(call if_changed,dtocc)
304 ifdef CONFIG_VAR_SIZE_SPL
305 VAR_SIZE_PARAM = --vs
309 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
310 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
311 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
312 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
315 quiet_cmd_objcopy = OBJCOPY $@
316 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
318 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
319 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec)
321 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
322 $(call if_changed,objcopy)
324 OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec
325 $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
326 $(call if_changed,objcopy)
328 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
330 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
331 LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
333 # Pick the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
334 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
335 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
338 ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
339 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1
341 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
343 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
344 $(call if_changed,mkimage)
346 quiet_cmd_mksunxiboot = MKSUNXI $@
347 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \
348 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@
349 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
350 $(call if_changed,mksunxiboot)
352 quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
353 cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
354 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
355 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \
356 -o $(CONFIG_SYS_NAND_OOBSIZE) \
357 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
358 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
360 $(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
361 $(call if_changed,sunxi_spl_image_builder)
364 # MediaTek's specific SPL build
365 MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \
366 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \
367 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
369 $(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE
370 $(call if_changed,mkimage)
372 # Rule to link u-boot-spl
373 # May be overridden by arch/$(ARCH)/config.mk
374 quiet_cmd_u-boot-spl ?= LD $@
375 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
376 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
377 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
378 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
380 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
382 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
383 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
384 $(call if_changed,u-boot-spl)
386 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
388 PHONY += $(u-boot-spl-dirs)
389 $(u-boot-spl-dirs): $(u-boot-spl-platdata)
390 $(Q)$(MAKE) $(build)=$@
392 quiet_cmd_cpp_lds = LDS $@
393 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
394 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
396 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
397 $(call if_changed_dep,cpp_lds)
399 # read all saved command lines
401 targets := $(wildcard $(sort $(targets)))
402 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
404 ifneq ($(cmd_files),)
405 $(cmd_files): ; # Do not try to update included dependency files
414 $(Q)$(MAKE) $(build)=dts dtbs
416 # Declare the contents of the .PHONY variable as phony. We keep that
417 # information in a variable so we can use it in if_changed and friends.
420 SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
422 $(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@)
423 $(call if_changed,fdtgrep)
425 MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
426 -n "Multi DTB fit image for $(SPL_BIN)" -E \
427 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB))
429 $(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE
430 $(call if_changed,mkimage)
431 ifneq ($(SOURCE_DATE_EPOCH),)
432 touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit
433 chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit
436 $(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit
439 $(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit
443 tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE
444 $(call if_changed,mkfitimage)