1# SPDX-License-Identifier: GPL-2.0+ 2# 3# (C) Copyright 2000-2011 4# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5# 6# (C) Copyright 2011 7# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com. 8# 9# (C) Copyright 2011 10# Texas Instruments Incorporated - http://www.ti.com/ 11# Aneesh V <aneesh@ti.com> 12# Based on top-level Makefile. 13# 14 15src := $(obj) 16 17# Create output directory if not already present 18_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj)) 19 20include $(srctree)/scripts/Kbuild.include 21 22-include include/config/auto.conf 23-include $(obj)/include/autoconf.mk 24 25KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD 26ifeq ($(CONFIG_TPL_BUILD),y) 27KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD 28endif 29 30ifeq ($(CONFIG_TPL_BUILD),y) 31SPL_BIN := u-boot-tpl 32else 33SPL_BIN := u-boot-spl 34endif 35 36ifdef CONFIG_SPL_BUILD 37SPL_ := SPL_ 38ifeq ($(CONFIG_TPL_BUILD),y) 39SPL_TPL_ := TPL_ 40else 41SPL_TPL_ := SPL_ 42endif 43else 44SPL_ := 45SPL_TPL_ := 46endif 47 48ifeq ($(obj)$(CONFIG_SUPPORT_SPL),spl) 49$(error You cannot build SPL without enabling CONFIG_SUPPORT_SPL) 50endif 51ifeq ($(obj)$(CONFIG_SUPPORT_TPL),tpl) 52$(error You cannot build TPL without enabling CONFIG_SUPPORT_TPL) 53endif 54 55include $(srctree)/config.mk 56include $(srctree)/arch/$(ARCH)/Makefile 57 58include $(srctree)/scripts/Makefile.lib 59 60# Enable garbage collection of un-used sections for SPL 61KBUILD_CFLAGS += -ffunction-sections -fdata-sections 62LDFLAGS_FINAL += --gc-sections 63 64# FIX ME 65cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 66 $(NOSTDINC_FLAGS) 67c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 68 69HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 70 71libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 72libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 73 74libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/ 75libs-y += common/init/ 76 77# Special handling for a few options which support SPL/TPL 78ifeq ($(CONFIG_TPL_BUILD),y) 79libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/ 80libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/ 81else 82libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/ 83libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/ 84endif 85 86libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/ 87libs-y += drivers/ 88libs-$(CONFIG_SPL_USB_GADGET_SUPPORT) += drivers/usb/dwc3/ 89libs-y += dts/ 90libs-y += fs/ 91libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ 92libs-$(CONFIG_SPL_NET_SUPPORT) += net/ 93 94head-y := $(addprefix $(obj)/,$(head-y)) 95libs-y := $(addprefix $(obj)/,$(libs-y)) 96u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) 97 98libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 99 100# Add GCC lib 101ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 102PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 103PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 104endif 105 106u-boot-spl-init := $(head-y) 107u-boot-spl-main := $(libs-y) 108ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA 109u-boot-spl-platdata := $(obj)/dts/dt-platdata.o 110endif 111 112# Linker Script 113# First test whether there's a linker-script for the specific stage defined... 114ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),) 115# need to strip off double quotes 116LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%)) 117else 118# ...then fall back to the generic SPL linker-script 119ifneq ($(CONFIG_SPL_LDSCRIPT),) 120# need to strip off double quotes 121LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) 122endif 123endif 124 125ifeq ($(wildcard $(LDSCRIPT)),) 126 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds 127endif 128ifeq ($(wildcard $(LDSCRIPT)),) 129 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds 130endif 131ifeq ($(wildcard $(LDSCRIPT)),) 132 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds 133endif 134ifeq ($(wildcard $(LDSCRIPT)),) 135$(error could not find linker script) 136endif 137 138# Special flags for CPP when processing the linker script. 139# Pass the version down so we can handle backwards compatibility 140# on the fly. 141LDPPFLAGS += \ 142 -include $(srctree)/include/u-boot/u-boot.lds.h \ 143 -include $(objtree)/include/config.h \ 144 -DCPUDIR=$(CPUDIR) \ 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') 147 148MKIMAGEOUTPUT ?= /dev/null 149 150quiet_cmd_mkimage = MKIMAGE $@ 151cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 152 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 153 154quiet_cmd_mkfitimage = MKIMAGE $@ 155cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \ 156 $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT) 157 158MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 159 160MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 161 162MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE 163 $(call if_changed,mkimage) 164 165ifeq ($(CONFIG_SYS_SOC),"at91") 166MKIMAGEFLAGS_boot.bin = -T atmelimage 167 168ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 169MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 170 171boot.bin: $(obj)/../tools/atmel_pmecc_params 172endif 173 174boot.bin: $(obj)/u-boot-spl.bin FORCE 175 $(call if_changed,mkimage) 176else 177ifdef CONFIG_ARCH_ZYNQ 178MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) 179endif 180ifdef CONFIG_ARCH_ZYNQMP 181ifneq ($(CONFIG_PMUFW_INIT_FILE),"") 182spl/boot.bin: zynqmp-check-pmufw 183zynqmp-check-pmufw: FORCE 184 ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \ 185 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false ) 186endif 187MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \ 188 -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))" 189endif 190 191spl/boot.bin: $(obj)/u-boot-spl.bin FORCE 192 $(call if_changed,mkimage) 193endif 194 195ALL-y += $(obj)/$(SPL_BIN).bin 196 197ifdef CONFIG_SAMSUNG 198ALL-y += $(obj)/$(BOARD)-spl.bin 199endif 200 201ifdef CONFIG_ARCH_SOCFPGA 202ALL-y += $(obj)/$(SPL_BIN).sfp 203endif 204 205ifdef CONFIG_ARCH_SUNXI 206ALL-y += $(obj)/sunxi-spl.bin 207 208ifdef CONFIG_NAND_SUNXI 209ALL-y += $(obj)/sunxi-spl-with-ecc.bin 210endif 211endif 212 213ifeq ($(CONFIG_SYS_SOC),"at91") 214ALL-y += boot.bin 215endif 216 217ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin 218 219ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin 220ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin 221 222all: $(ALL-y) 223 224quiet_cmd_cat = CAT $@ 225cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 226 227quiet_cmd_copy = COPY $@ 228 cmd_copy = cp $< $@ 229 230ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y) 231FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb 232else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y) 233FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo 234else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y) 235FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz 236else 237FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit 238endif 239 240 241ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy) 242$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \ 243 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \ 244 $(FINAL_DTB_CONTAINER) FORCE 245 $(call if_changed,cat) 246 247$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE 248 $(call if_changed,copy) 249else 250$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE 251 $(call if_changed,copy) 252endif 253 254# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end 255$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) 256 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ 257 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; 258 259$(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE 260 $(call if_changed,copy) 261 262pythonpath = PYTHONPATH=scripts/dtc/pylibfdt 263 264quiet_cmd_dtocc = DTOC C $@ 265cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata 266 267quiet_cmd_dtoch = DTOC H $@ 268cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct 269 270quiet_cmd_plat = PLAT $@ 271cmd_plat = $(CC) $(c_flags) -c $< -o $@ 272 273$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ 274 include/generated/dt-structs-gen.h 275 $(call if_changed,plat) 276 277PHONY += dts_dir 278dts_dir: 279 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) 280 281include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 282 $(call if_changed,dtoch) 283 284$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 285 $(call if_changed,dtocc) 286 287ifdef CONFIG_SAMSUNG 288ifdef CONFIG_VAR_SIZE_SPL 289VAR_SIZE_PARAM = --vs 290else 291VAR_SIZE_PARAM = 292endif 293$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 294 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 295 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 296 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 297endif 298 299quiet_cmd_objcopy = OBJCOPY $@ 300cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 301 302OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ 303 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) 304 305$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE 306 $(call if_changed,objcopy) 307 308OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec 309$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE 310 $(call if_changed,objcopy) 311 312LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 313 314# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 315LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker) 316 317# First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) 318ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 319LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE) 320else 321# And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode 322ifneq ($(CONFIG_SPL_TEXT_BASE),) 323LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 324endif 325endif 326 327ifdef CONFIG_TARGET_SOCFPGA_ARRIA10 328MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1 329else 330MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage 331endif 332$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE 333 $(call if_changed,mkimage) 334 335quiet_cmd_mksunxiboot = MKSUNXI $@ 336cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \ 337 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@ 338$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE 339 $(call if_changed,mksunxiboot) 340 341quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@ 342cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \ 343 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \ 344 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \ 345 -o $(CONFIG_SYS_NAND_OOBSIZE) \ 346 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \ 347 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \ 348 -s -b $< $@ 349$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin 350 $(call if_changed,sunxi_spl_image_builder) 351 352# Rule to link u-boot-spl 353# May be overridden by arch/$(ARCH)/config.mk 354quiet_cmd_u-boot-spl ?= LD $@ 355 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 356 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 357 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ 358 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ 359 --end-group \ 360 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) 361 362$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ 363 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 364 $(call if_changed,u-boot-spl) 365 366$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 367 368PHONY += $(u-boot-spl-dirs) 369$(u-boot-spl-dirs): $(u-boot-spl-platdata) 370 $(Q)$(MAKE) $(build)=$@ 371 372quiet_cmd_cpp_lds = LDS $@ 373cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 374 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 375 376$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 377 $(call if_changed_dep,cpp_lds) 378 379# read all saved command lines 380 381targets := $(wildcard $(sort $(targets))) 382cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 383 384ifneq ($(cmd_files),) 385 $(cmd_files): ; # Do not try to update included dependency files 386 include $(cmd_files) 387endif 388 389PHONY += FORCE 390FORCE: 391 392PHONY += dtbs 393dtbs: 394 $(Q)$(MAKE) $(build)=dts dtbs 395 396# Declare the contents of the .PHONY variable as phony. We keep that 397# information in a variable so we can use it in if_changed and friends. 398.PHONY: $(PHONY) 399 400SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST))) 401.SECONDEXPANSION: 402$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) 403 $(call if_changed,fdtgrep) 404 405MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 406 -n "Multi DTB fit image for $(SPL_BIN)" -E \ 407 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB)) 408 409$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE 410 $(call if_changed,mkimage) 411ifneq ($(SOURCE_DATE_EPOCH),) 412 touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit 413 chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit 414endif 415 416$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit 417 @gzip -kf9 $< > $@ 418 419$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit 420 @lzop -f9 $< > $@ 421 422ifdef CONFIG_ARCH_K3 423tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE 424 $(call if_changed,mkfitimage) 425endif 426