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/
91 libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/cdns3/
94 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
95 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
97 head-y := $(addprefix $(obj)/,$(head-y))
98 libs-y := $(addprefix $(obj)/,$(libs-y))
99 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
101 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
104 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
105 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
106 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
109 u-boot-spl-init := $(head-y)
110 u-boot-spl-main := $(libs-y)
111 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
112 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
116 # First test whether there's a linker-script for the specific stage defined...
117 ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
118 # need to strip off double quotes
119 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
121 # ...then fall back to the generic SPL linker-script
122 ifneq ($(CONFIG_SPL_LDSCRIPT),)
123 # need to strip off double quotes
124 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
128 ifeq ($(wildcard $(LDSCRIPT)),)
129 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
131 ifeq ($(wildcard $(LDSCRIPT)),)
132 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
134 ifeq ($(wildcard $(LDSCRIPT)),)
135 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
137 ifeq ($(wildcard $(LDSCRIPT)),)
138 $(error could not find linker script)
141 # Special flags for CPP when processing the linker script.
142 # Pass the version down so we can handle backwards compatibility
145 -include $(srctree)/include/u-boot/u-boot.lds.h \
146 -include $(objtree)/include/config.h \
148 $(shell $(LD) --version | \
149 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
151 # Turn various CONFIG symbols into IMAGE symbols for easy reuse of
152 # the scripts between SPL and TPL.
153 ifneq ($(CONFIG_$(SPL_TPL_)MAX_SIZE),)
154 LDPPFLAGS += -DIMAGE_MAX_SIZE=$(CONFIG_$(SPL_TPL_)MAX_SIZE)
156 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
157 LDPPFLAGS += -DIMAGE_TEXT_BASE=$(CONFIG_$(SPL_TPL_)TEXT_BASE)
160 MKIMAGEOUTPUT ?= /dev/null
162 quiet_cmd_mkimage = MKIMAGE $@
163 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
164 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
166 quiet_cmd_mkfitimage = MKIMAGE $@
167 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \
168 $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT)
170 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
172 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
174 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
175 $(call if_changed,mkimage)
177 ifeq ($(CONFIG_SYS_SOC),"at91")
178 MKIMAGEFLAGS_boot.bin = -T atmelimage
180 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
181 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
183 $(obj)/boot.bin: $(obj)/../tools/atmel_pmecc_params
186 $(obj)/boot.bin: $(obj)/u-boot-spl.bin FORCE
187 $(call if_changed,mkimage)
189 ifdef CONFIG_ARCH_ZYNQ
190 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
192 ifdef CONFIG_ARCH_ZYNQMP
193 ifneq ($(CONFIG_PMUFW_INIT_FILE),"")
194 spl/boot.bin: zynqmp-check-pmufw
195 zynqmp-check-pmufw: FORCE
196 ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \
197 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false )
199 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \
200 -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))"
203 $(obj)/$(SPL_BIN)-align.bin: $(obj)/$(SPL_BIN).bin
204 @dd if=$< of=$@ conv=block,sync bs=4 2>/dev/null;
206 spl/boot.bin: $(obj)/$(SPL_BIN)-align.bin FORCE
207 $(call if_changed,mkimage)
210 ALL-y += $(obj)/$(SPL_BIN).bin
213 ALL-y += $(obj)/$(BOARD)-spl.bin
216 ifneq ($(CONFIG_TARGET_SOCFPGA_GEN5)$(CONFIG_TARGET_SOCFPGA_ARRIA10),)
217 ALL-y += $(obj)/$(SPL_BIN).sfp
220 ifdef CONFIG_ARCH_SUNXI
221 ALL-y += $(obj)/sunxi-spl.bin
223 ifdef CONFIG_NAND_SUNXI
224 ALL-y += $(obj)/sunxi-spl-with-ecc.bin
228 ifeq ($(CONFIG_SYS_SOC),"at91")
229 ALL-y += $(obj)/boot.bin
232 ifdef CONFIG_TPL_BUILD
233 ALL-$(CONFIG_TPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-tpl.bin \
234 $(obj)/u-boot-x86-reset16-tpl.bin
236 ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-spl.bin \
237 $(obj)/u-boot-x86-reset16-spl.bin
240 ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
241 ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
243 ALL-$(CONFIG_ARCH_MEDIATEK) += $(obj)/u-boot-spl-mtk.bin
247 quiet_cmd_cat = CAT $@
248 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
250 quiet_cmd_copy = COPY $@
253 ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y)
254 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb
255 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y)
256 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo
257 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y)
258 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz
260 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit
263 # Build the .dtb file if:
264 # - we are not using OF_PLATDATA
265 # - we are using OF_CONTROL
266 # - we have either OF_SEPARATE or OF_HOSTFILE
268 ifeq ($(CONFIG_$(SPL_TPL_)OF_PLATDATA),)
269 ifneq ($(CONFIG_$(SPL_TPL_)OF_CONTROL),)
270 ifeq ($(CONFIG_OF_SEPARATE)$(CONFIG_OF_HOSTFILE),y)
276 ifneq ($(build_dtb),)
277 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
278 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
279 $(FINAL_DTB_CONTAINER) FORCE
280 $(call if_changed,cat)
282 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
283 $(call if_changed,copy)
285 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
286 $(call if_changed,copy)
289 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
290 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
291 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
292 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
294 $(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE
295 $(call if_changed,copy)
297 pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
299 quiet_cmd_dtocc = DTOC C $@
300 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
302 quiet_cmd_dtoch = DTOC H $@
303 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
305 quiet_cmd_plat = PLAT $@
306 cmd_plat = $(CC) $(c_flags) -c $< -o $@
308 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \
309 include/generated/dt-structs-gen.h
310 $(call if_changed,plat)
314 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
316 include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
317 $(call if_changed,dtoch)
319 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
320 $(call if_changed,dtocc)
323 ifdef CONFIG_VAR_SIZE_SPL
324 VAR_SIZE_PARAM = --vs
328 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
329 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
330 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
331 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
334 quiet_cmd_objcopy = OBJCOPY $@
335 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
337 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
338 $(if $(CONFIG_$(SPL_TPL_)X86_16BIT_INIT),-R .start16 -R .resetvec)
340 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
341 $(call if_changed,objcopy)
343 OBJCOPYFLAGS_u-boot-x86-start16-spl.bin := -O binary -j .start16
344 $(obj)/u-boot-x86-start16-spl.bin: $(obj)/u-boot-spl FORCE
345 $(call if_changed,objcopy)
347 OBJCOPYFLAGS_u-boot-x86-start16-tpl.bin := -O binary -j .start16
348 $(obj)/u-boot-x86-start16-tpl.bin: $(obj)/u-boot-tpl FORCE
349 $(call if_changed,objcopy)
351 OBJCOPYFLAGS_u-boot-x86-reset16-spl.bin := -O binary -j .resetvec
352 $(obj)/u-boot-x86-reset16-spl.bin: $(obj)/u-boot-spl FORCE
353 $(call if_changed,objcopy)
355 OBJCOPYFLAGS_u-boot-x86-reset16-tpl.bin := -O binary -j .resetvec
356 $(obj)/u-boot-x86-reset16-tpl.bin: $(obj)/u-boot-tpl FORCE
357 $(call if_changed,objcopy)
359 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
361 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
362 LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
364 # Pick the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
365 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
366 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
369 ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
370 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1
372 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
374 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
375 $(call if_changed,mkimage)
377 quiet_cmd_mksunxiboot = MKSUNXI $@
378 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \
379 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@
380 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
381 $(call if_changed,mksunxiboot)
383 quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
384 cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
385 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
386 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \
387 -o $(CONFIG_SYS_NAND_OOBSIZE) \
388 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
389 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
391 $(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
392 $(call if_changed,sunxi_spl_image_builder)
395 # MediaTek's specific SPL build
396 MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \
397 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \
398 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
400 $(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE
401 $(call if_changed,mkimage)
403 # Rule to link u-boot-spl
404 # May be overridden by arch/$(ARCH)/config.mk
405 quiet_cmd_u-boot-spl ?= LD $@
406 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
407 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
408 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
409 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
411 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
413 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
414 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
415 $(call if_changed,u-boot-spl)
417 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
419 PHONY += $(u-boot-spl-dirs)
420 $(u-boot-spl-dirs): $(u-boot-spl-platdata)
421 $(Q)$(MAKE) $(build)=$@
423 quiet_cmd_cpp_lds = LDS $@
424 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
425 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
427 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
428 $(call if_changed_dep,cpp_lds)
430 # read all saved command lines
432 targets := $(wildcard $(sort $(targets)))
433 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
435 ifneq ($(cmd_files),)
436 $(cmd_files): ; # Do not try to update included dependency files
445 $(Q)$(MAKE) $(build)=dts dtbs
447 # Declare the contents of the .PHONY variable as phony. We keep that
448 # information in a variable so we can use it in if_changed and friends.
451 SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
453 $(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@)
454 $(call if_changed,fdtgrep)
456 MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
457 -n "Multi DTB fit image for $(SPL_BIN)" -E \
458 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB))
460 $(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE
461 $(call if_changed,mkimage)
462 ifneq ($(SOURCE_DATE_EPOCH),)
463 touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit
464 chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit
467 $(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit
470 $(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit
474 tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE
475 $(call if_changed,mkfitimage)