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 -pie 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/ 84ifdef CONFIG_SPL_FRAMEWORK 85libs-$(CONFIG_PARTITIONS) += disk/ 86endif 87endif 88 89libs-y += drivers/ 90libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/dwc3/ 91libs-y += dts/ 92libs-y += fs/ 93libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ 94libs-$(CONFIG_SPL_NET_SUPPORT) += net/ 95 96head-y := $(addprefix $(obj)/,$(head-y)) 97libs-y := $(addprefix $(obj)/,$(libs-y)) 98u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) 99 100libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 101 102# Add GCC lib 103ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 104PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 105PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 106endif 107 108u-boot-spl-init := $(head-y) 109u-boot-spl-main := $(libs-y) 110ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA 111u-boot-spl-platdata := $(obj)/dts/dt-platdata.o 112endif 113 114# Linker Script 115# First test whether there's a linker-script for the specific stage defined... 116ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),) 117# need to strip off double quotes 118LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%)) 119else 120# ...then fall back to the generic SPL linker-script 121ifneq ($(CONFIG_SPL_LDSCRIPT),) 122# need to strip off double quotes 123LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) 124endif 125endif 126 127ifeq ($(wildcard $(LDSCRIPT)),) 128 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds 129endif 130ifeq ($(wildcard $(LDSCRIPT)),) 131 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds 132endif 133ifeq ($(wildcard $(LDSCRIPT)),) 134 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds 135endif 136ifeq ($(wildcard $(LDSCRIPT)),) 137$(error could not find linker script) 138endif 139 140# Special flags for CPP when processing the linker script. 141# Pass the version down so we can handle backwards compatibility 142# on the fly. 143LDPPFLAGS += \ 144 -include $(srctree)/include/u-boot/u-boot.lds.h \ 145 -include $(objtree)/include/config.h \ 146 -DCPUDIR=$(CPUDIR) \ 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') 149 150# Turn various CONFIG symbols into IMAGE symbols for easy reuse of 151# the scripts between SPL and TPL. 152ifneq ($(CONFIG_$(SPL_TPL_)MAX_SIZE),) 153LDPPFLAGS += -DIMAGE_MAX_SIZE=$(CONFIG_$(SPL_TPL_)MAX_SIZE) 154endif 155ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 156LDPPFLAGS += -DIMAGE_TEXT_BASE=$(CONFIG_$(SPL_TPL_)TEXT_BASE) 157endif 158 159MKIMAGEOUTPUT ?= /dev/null 160 161quiet_cmd_mkimage = MKIMAGE $@ 162cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 163 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 164 165quiet_cmd_mkfitimage = MKIMAGE $@ 166cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \ 167 $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT) 168 169MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 170 171MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 172 173MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE 174 $(call if_changed,mkimage) 175 176ifeq ($(CONFIG_SYS_SOC),"at91") 177MKIMAGEFLAGS_boot.bin = -T atmelimage 178 179ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 180MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 181 182boot.bin: $(obj)/../tools/atmel_pmecc_params 183endif 184 185boot.bin: $(obj)/u-boot-spl.bin FORCE 186 $(call if_changed,mkimage) 187else 188ifdef CONFIG_ARCH_ZYNQ 189MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) 190endif 191ifdef CONFIG_ARCH_ZYNQMP 192ifneq ($(CONFIG_PMUFW_INIT_FILE),"") 193spl/boot.bin: zynqmp-check-pmufw 194zynqmp-check-pmufw: FORCE 195 ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \ 196 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false ) 197endif 198MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \ 199 -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))" 200endif 201 202$(obj)/$(SPL_BIN)-align.bin: $(obj)/$(SPL_BIN).bin 203 @dd if=$< of=$@ conv=block,sync bs=4 2>/dev/null; 204 205spl/boot.bin: $(obj)/$(SPL_BIN)-align.bin FORCE 206 $(call if_changed,mkimage) 207endif 208 209ALL-y += $(obj)/$(SPL_BIN).bin 210 211ifdef CONFIG_SAMSUNG 212ALL-y += $(obj)/$(BOARD)-spl.bin 213endif 214 215ifneq ($(CONFIG_TARGET_SOCFPGA_GEN5)$(CONFIG_TARGET_SOCFPGA_ARRIA10),) 216ALL-y += $(obj)/$(SPL_BIN).sfp 217endif 218 219ifdef CONFIG_ARCH_SUNXI 220ALL-y += $(obj)/sunxi-spl.bin 221 222ifdef CONFIG_NAND_SUNXI 223ALL-y += $(obj)/sunxi-spl-with-ecc.bin 224endif 225endif 226 227ifeq ($(CONFIG_SYS_SOC),"at91") 228ALL-y += boot.bin 229endif 230 231ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin 232 233ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin 234ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin 235 236ALL-$(CONFIG_ARCH_MEDIATEK) += $(obj)/u-boot-spl-mtk.bin 237 238all: $(ALL-y) 239 240quiet_cmd_cat = CAT $@ 241cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 242 243quiet_cmd_copy = COPY $@ 244 cmd_copy = cp $< $@ 245 246ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y) 247FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb 248else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y) 249FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo 250else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y) 251FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz 252else 253FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit 254endif 255 256 257ifeq ($(CONFIG_$(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 $(call if_changed,cat) 262 263$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE 264 $(call if_changed,copy) 265else 266$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE 267 $(call if_changed,copy) 268endif 269 270# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end 271$(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; 274 275$(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE 276 $(call if_changed,copy) 277 278pythonpath = PYTHONPATH=scripts/dtc/pylibfdt 279 280quiet_cmd_dtocc = DTOC C $@ 281cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata 282 283quiet_cmd_dtoch = DTOC H $@ 284cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct 285 286quiet_cmd_plat = PLAT $@ 287cmd_plat = $(CC) $(c_flags) -c $< -o $@ 288 289$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ 290 include/generated/dt-structs-gen.h 291 $(call if_changed,plat) 292 293PHONY += dts_dir 294dts_dir: 295 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) 296 297include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 298 $(call if_changed,dtoch) 299 300$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 301 $(call if_changed,dtocc) 302 303ifdef CONFIG_SAMSUNG 304ifdef CONFIG_VAR_SIZE_SPL 305VAR_SIZE_PARAM = --vs 306else 307VAR_SIZE_PARAM = 308endif 309$(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) $< $@ 313endif 314 315quiet_cmd_objcopy = OBJCOPY $@ 316cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 317 318OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ 319 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) 320 321$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE 322 $(call if_changed,objcopy) 323 324OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec 325$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE 326 $(call if_changed,objcopy) 327 328LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 329 330# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 331LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker) 332 333# Avoid 'warning: u-boot-spl has a LOAD segment with RWX permissions' 334LDFLAGS_$(SPL_BIN) += $(call ld-option,--no-warn-rwx-segments) 335 336# Avoid 'missing .note.GNU-stack section implies executable stack' 337LDFLAGS_$(SPL_BIN) += -z noexecstack 338 339# Pick the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) 340ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 341LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE) 342endif 343 344ifdef CONFIG_TARGET_SOCFPGA_ARRIA10 345MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1 346else 347MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage 348endif 349$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE 350 $(call if_changed,mkimage) 351 352quiet_cmd_mksunxiboot = MKSUNXI $@ 353cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \ 354 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@ 355$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE 356 $(call if_changed,mksunxiboot) 357 358quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@ 359cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \ 360 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \ 361 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \ 362 -o $(CONFIG_SYS_NAND_OOBSIZE) \ 363 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \ 364 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \ 365 -s -b $< $@ 366$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin 367 $(call if_changed,sunxi_spl_image_builder) 368 369 370# MediaTek's specific SPL build 371MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \ 372 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \ 373 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 374 375$(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE 376 $(call if_changed,mkimage) 377 378# Rule to link u-boot-spl 379# May be overridden by arch/$(ARCH)/config.mk 380quiet_cmd_u-boot-spl ?= LD $@ 381 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 382 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 383 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ 384 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ 385 --end-group \ 386 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) 387 388$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ 389 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 390 $(call if_changed,u-boot-spl) 391 392$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 393 394PHONY += $(u-boot-spl-dirs) 395$(u-boot-spl-dirs): $(u-boot-spl-platdata) 396 $(Q)$(MAKE) $(build)=$@ 397 398quiet_cmd_cpp_lds = LDS $@ 399cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 400 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 401 402$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 403 $(call if_changed_dep,cpp_lds) 404 405# read all saved command lines 406 407targets := $(wildcard $(sort $(targets))) 408cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 409 410ifneq ($(cmd_files),) 411 $(cmd_files): ; # Do not try to update included dependency files 412 include $(cmd_files) 413endif 414 415PHONY += FORCE 416FORCE: 417 418PHONY += dtbs 419dtbs: 420 $(Q)$(MAKE) $(build)=dts dtbs 421 422# Declare the contents of the .PHONY variable as phony. We keep that 423# information in a variable so we can use it in if_changed and friends. 424.PHONY: $(PHONY) 425 426SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST))) 427.SECONDEXPANSION: 428$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) 429 $(call if_changed,fdtgrep) 430 431MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 432 -n "Multi DTB fit image for $(SPL_BIN)" -E \ 433 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB)) 434 435$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE 436 $(call if_changed,mkimage) 437ifneq ($(SOURCE_DATE_EPOCH),) 438 touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit 439 chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit 440endif 441 442$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit 443 @gzip -kf9 $< > $@ 444 445$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit 446 @lzop -f9 $< > $@ 447 448ifdef CONFIG_ARCH_K3 449tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE 450 $(call if_changed,mkfitimage) 451endif 452