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/
86 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
88 libs-$(CONFIG_SPL_USB_GADGET_SUPPORT) += drivers/usb/dwc3/
91 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
92 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
94 head-y := $(addprefix $(obj)/,$(head-y))
95 libs-y := $(addprefix $(obj)/,$(libs-y))
96 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
98 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
101 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
102 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
103 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
106 u-boot-spl-init := $(head-y)
107 u-boot-spl-main := $(libs-y)
108 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
109 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
113 # First test whether there's a linker-script for the specific stage defined...
114 ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
115 # need to strip off double quotes
116 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
118 # ...then fall back to the generic SPL linker-script
119 ifneq ($(CONFIG_SPL_LDSCRIPT),)
120 # need to strip off double quotes
121 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
125 ifeq ($(wildcard $(LDSCRIPT)),)
126 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
128 ifeq ($(wildcard $(LDSCRIPT)),)
129 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
131 ifeq ($(wildcard $(LDSCRIPT)),)
132 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
134 ifeq ($(wildcard $(LDSCRIPT)),)
135 $(error could not find linker script)
138 # Special flags for CPP when processing the linker script.
139 # Pass the version down so we can handle backwards compatibility
142 -include $(srctree)/include/u-boot/u-boot.lds.h \
143 -include $(objtree)/include/config.h \
145 $(shell $(LD) --version | \
146 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
148 MKIMAGEOUTPUT ?= /dev/null
150 quiet_cmd_mkimage = MKIMAGE $@
151 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
152 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
154 quiet_cmd_mkfitimage = MKIMAGE $@
155 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \
156 $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT)
158 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
160 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
162 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
163 $(call if_changed,mkimage)
165 ifeq ($(CONFIG_SYS_SOC),"at91")
166 MKIMAGEFLAGS_boot.bin = -T atmelimage
168 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
169 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
171 boot.bin: $(obj)/../tools/atmel_pmecc_params
174 boot.bin: $(obj)/u-boot-spl.bin FORCE
175 $(call if_changed,mkimage)
177 ifdef CONFIG_ARCH_ZYNQ
178 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
180 ifdef CONFIG_ARCH_ZYNQMP
181 ifneq ($(CONFIG_PMUFW_INIT_FILE),"")
182 spl/boot.bin: zynqmp-check-pmufw
183 zynqmp-check-pmufw: FORCE
184 ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \
185 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false )
187 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \
188 -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))"
191 spl/boot.bin: $(obj)/u-boot-spl.bin FORCE
192 $(call if_changed,mkimage)
195 ALL-y += $(obj)/$(SPL_BIN).bin
198 ALL-y += $(obj)/$(BOARD)-spl.bin
201 ifdef CONFIG_ARCH_SOCFPGA
202 ALL-y += $(obj)/$(SPL_BIN).sfp
205 ifdef CONFIG_ARCH_SUNXI
206 ALL-y += $(obj)/sunxi-spl.bin
208 ifdef CONFIG_NAND_SUNXI
209 ALL-y += $(obj)/sunxi-spl-with-ecc.bin
213 ifeq ($(CONFIG_SYS_SOC),"at91")
217 ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin
219 ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
220 ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
222 ALL-$(CONFIG_ARCH_MEDIATEK) += $(obj)/u-boot-spl-mtk.bin
226 quiet_cmd_cat = CAT $@
227 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
229 quiet_cmd_copy = COPY $@
232 ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y)
233 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb
234 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y)
235 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo
236 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y)
237 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz
239 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit
243 ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy)
244 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
245 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
246 $(FINAL_DTB_CONTAINER) FORCE
247 $(call if_changed,cat)
249 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
250 $(call if_changed,copy)
252 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
253 $(call if_changed,copy)
256 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
257 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
258 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
259 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
261 $(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE
262 $(call if_changed,copy)
264 pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
266 quiet_cmd_dtocc = DTOC C $@
267 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
269 quiet_cmd_dtoch = DTOC H $@
270 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
272 quiet_cmd_plat = PLAT $@
273 cmd_plat = $(CC) $(c_flags) -c $< -o $@
275 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \
276 include/generated/dt-structs-gen.h
277 $(call if_changed,plat)
281 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
283 include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
284 $(call if_changed,dtoch)
286 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
287 $(call if_changed,dtocc)
290 ifdef CONFIG_VAR_SIZE_SPL
291 VAR_SIZE_PARAM = --vs
295 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
296 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
297 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
298 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
301 quiet_cmd_objcopy = OBJCOPY $@
302 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
304 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
305 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec)
307 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
308 $(call if_changed,objcopy)
310 OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec
311 $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
312 $(call if_changed,objcopy)
314 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
316 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
317 LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
319 # First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
320 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
321 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
323 # And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode
324 ifneq ($(CONFIG_SPL_TEXT_BASE),)
325 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
329 ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
330 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1
332 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
334 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
335 $(call if_changed,mkimage)
337 quiet_cmd_mksunxiboot = MKSUNXI $@
338 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \
339 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@
340 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
341 $(call if_changed,mksunxiboot)
343 quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
344 cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
345 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
346 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \
347 -o $(CONFIG_SYS_NAND_OOBSIZE) \
348 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
349 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
351 $(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
352 $(call if_changed,sunxi_spl_image_builder)
355 # MediaTek's specific SPL build
356 MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \
357 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \
358 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
360 $(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE
361 $(call if_changed,mkimage)
363 # Rule to link u-boot-spl
364 # May be overridden by arch/$(ARCH)/config.mk
365 quiet_cmd_u-boot-spl ?= LD $@
366 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
367 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
368 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
369 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
371 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
373 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
374 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
375 $(call if_changed,u-boot-spl)
377 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
379 PHONY += $(u-boot-spl-dirs)
380 $(u-boot-spl-dirs): $(u-boot-spl-platdata)
381 $(Q)$(MAKE) $(build)=$@
383 quiet_cmd_cpp_lds = LDS $@
384 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
385 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
387 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
388 $(call if_changed_dep,cpp_lds)
390 # read all saved command lines
392 targets := $(wildcard $(sort $(targets)))
393 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
395 ifneq ($(cmd_files),)
396 $(cmd_files): ; # Do not try to update included dependency files
405 $(Q)$(MAKE) $(build)=dts dtbs
407 # Declare the contents of the .PHONY variable as phony. We keep that
408 # information in a variable so we can use it in if_changed and friends.
411 SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
413 $(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@)
414 $(call if_changed,fdtgrep)
416 MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
417 -n "Multi DTB fit image for $(SPL_BIN)" -E \
418 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB))
420 $(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE
421 $(call if_changed,mkimage)
422 ifneq ($(SOURCE_DATE_EPOCH),)
423 touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit
424 chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit
427 $(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit
430 $(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit
434 tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE
435 $(call if_changed,mkfitimage)