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/ 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 150MKIMAGEOUTPUT ?= /dev/null 151 152quiet_cmd_mkimage = MKIMAGE $@ 153cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 154 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 155 156quiet_cmd_mkfitimage = MKIMAGE $@ 157cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \ 158 $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT) 159 160MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 161 162MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 163 164MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE 165 $(call if_changed,mkimage) 166 167ifeq ($(CONFIG_SYS_SOC),"at91") 168MKIMAGEFLAGS_boot.bin = -T atmelimage 169 170ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 171MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 172 173boot.bin: $(obj)/../tools/atmel_pmecc_params 174endif 175 176boot.bin: $(obj)/u-boot-spl.bin FORCE 177 $(call if_changed,mkimage) 178else 179ifdef CONFIG_ARCH_ZYNQ 180MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) 181endif 182ifdef CONFIG_ARCH_ZYNQMP 183ifneq ($(CONFIG_PMUFW_INIT_FILE),"") 184spl/boot.bin: zynqmp-check-pmufw 185zynqmp-check-pmufw: FORCE 186 ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \ 187 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false ) 188endif 189MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \ 190 -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))" 191endif 192 193spl/boot.bin: $(obj)/u-boot-spl.bin FORCE 194 $(call if_changed,mkimage) 195endif 196 197ALL-y += $(obj)/$(SPL_BIN).bin 198 199ifdef CONFIG_SAMSUNG 200ALL-y += $(obj)/$(BOARD)-spl.bin 201endif 202 203ifdef CONFIG_ARCH_SOCFPGA 204ALL-y += $(obj)/$(SPL_BIN).sfp 205endif 206 207ifdef CONFIG_ARCH_SUNXI 208ALL-y += $(obj)/sunxi-spl.bin 209 210ifdef CONFIG_NAND_SUNXI 211ALL-y += $(obj)/sunxi-spl-with-ecc.bin 212endif 213endif 214 215ifeq ($(CONFIG_SYS_SOC),"at91") 216ALL-y += boot.bin 217endif 218 219ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin 220 221ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin 222ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin 223 224ALL-$(CONFIG_ARCH_MEDIATEK) += $(obj)/u-boot-spl-mtk.bin 225 226all: $(ALL-y) 227 228quiet_cmd_cat = CAT $@ 229cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 230 231quiet_cmd_copy = COPY $@ 232 cmd_copy = cp $< $@ 233 234ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y) 235FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb 236else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y) 237FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo 238else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y) 239FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz 240else 241FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit 242endif 243 244 245ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy) 246$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \ 247 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \ 248 $(FINAL_DTB_CONTAINER) FORCE 249 $(call if_changed,cat) 250 251$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE 252 $(call if_changed,copy) 253else 254$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE 255 $(call if_changed,copy) 256endif 257 258# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end 259$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) 260 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ 261 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; 262 263$(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE 264 $(call if_changed,copy) 265 266pythonpath = PYTHONPATH=scripts/dtc/pylibfdt 267 268quiet_cmd_dtocc = DTOC C $@ 269cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata 270 271quiet_cmd_dtoch = DTOC H $@ 272cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct 273 274quiet_cmd_plat = PLAT $@ 275cmd_plat = $(CC) $(c_flags) -c $< -o $@ 276 277$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ 278 include/generated/dt-structs-gen.h 279 $(call if_changed,plat) 280 281PHONY += dts_dir 282dts_dir: 283 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) 284 285include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 286 $(call if_changed,dtoch) 287 288$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 289 $(call if_changed,dtocc) 290 291ifdef CONFIG_SAMSUNG 292ifdef CONFIG_VAR_SIZE_SPL 293VAR_SIZE_PARAM = --vs 294else 295VAR_SIZE_PARAM = 296endif 297$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 298 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 299 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 300 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 301endif 302 303quiet_cmd_objcopy = OBJCOPY $@ 304cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 305 306OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ 307 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) 308 309$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE 310 $(call if_changed,objcopy) 311 312OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec 313$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE 314 $(call if_changed,objcopy) 315 316LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 317 318# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 319LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker) 320 321# First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) 322ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 323LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE) 324else 325# And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode 326ifneq ($(CONFIG_SPL_TEXT_BASE),) 327LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 328endif 329endif 330 331ifdef CONFIG_TARGET_SOCFPGA_ARRIA10 332MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1 333else 334MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage 335endif 336$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE 337 $(call if_changed,mkimage) 338 339quiet_cmd_mksunxiboot = MKSUNXI $@ 340cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \ 341 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@ 342$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE 343 $(call if_changed,mksunxiboot) 344 345quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@ 346cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \ 347 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \ 348 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \ 349 -o $(CONFIG_SYS_NAND_OOBSIZE) \ 350 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \ 351 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \ 352 -s -b $< $@ 353$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin 354 $(call if_changed,sunxi_spl_image_builder) 355 356 357# MediaTek's specific SPL build 358MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \ 359 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \ 360 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 361 362$(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE 363 $(call if_changed,mkimage) 364 365# Rule to link u-boot-spl 366# May be overridden by arch/$(ARCH)/config.mk 367quiet_cmd_u-boot-spl ?= LD $@ 368 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 369 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 370 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ 371 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ 372 --end-group \ 373 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) 374 375$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ 376 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 377 $(call if_changed,u-boot-spl) 378 379$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 380 381PHONY += $(u-boot-spl-dirs) 382$(u-boot-spl-dirs): $(u-boot-spl-platdata) 383 $(Q)$(MAKE) $(build)=$@ 384 385quiet_cmd_cpp_lds = LDS $@ 386cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 387 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 388 389$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 390 $(call if_changed_dep,cpp_lds) 391 392# read all saved command lines 393 394targets := $(wildcard $(sort $(targets))) 395cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 396 397ifneq ($(cmd_files),) 398 $(cmd_files): ; # Do not try to update included dependency files 399 include $(cmd_files) 400endif 401 402PHONY += FORCE 403FORCE: 404 405PHONY += dtbs 406dtbs: 407 $(Q)$(MAKE) $(build)=dts dtbs 408 409# Declare the contents of the .PHONY variable as phony. We keep that 410# information in a variable so we can use it in if_changed and friends. 411.PHONY: $(PHONY) 412 413SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST))) 414.SECONDEXPANSION: 415$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) 416 $(call if_changed,fdtgrep) 417 418MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 419 -n "Multi DTB fit image for $(SPL_BIN)" -E \ 420 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB)) 421 422$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE 423 $(call if_changed,mkimage) 424ifneq ($(SOURCE_DATE_EPOCH),) 425 touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit 426 chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit 427endif 428 429$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit 430 @gzip -kf9 $< > $@ 431 432$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit 433 @lzop -f9 $< > $@ 434 435ifdef CONFIG_ARCH_K3 436tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE 437 $(call if_changed,mkfitimage) 438endif 439