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 48include $(srctree)/config.mk 49include $(srctree)/arch/$(ARCH)/Makefile 50 51include $(srctree)/scripts/Makefile.lib 52 53# Enable garbage collection of un-used sections for SPL 54KBUILD_CFLAGS += -ffunction-sections -fdata-sections 55LDFLAGS_FINAL += --gc-sections 56 57# FIX ME 58cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 59 $(NOSTDINC_FLAGS) 60c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 61 62HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 63 64libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 65libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 66 67libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/ 68libs-y += common/init/ 69 70# Special handling for a few options which support SPL/TPL 71ifeq ($(CONFIG_TPL_BUILD),y) 72libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/ 73libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/ 74else 75libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/ 76libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/ 77endif 78 79libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/ 80libs-y += drivers/ 81libs-$(CONFIG_SPL_USB_GADGET_SUPPORT) += drivers/usb/dwc3/ 82libs-y += dts/ 83libs-y += fs/ 84libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ 85libs-$(CONFIG_SPL_NET_SUPPORT) += net/ 86 87head-y := $(addprefix $(obj)/,$(head-y)) 88libs-y := $(addprefix $(obj)/,$(libs-y)) 89u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) 90 91libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 92 93# Add GCC lib 94ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 95PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 96PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 97endif 98 99u-boot-spl-init := $(head-y) 100u-boot-spl-main := $(libs-y) 101ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA 102u-boot-spl-platdata := $(obj)/dts/dt-platdata.o 103endif 104 105# Linker Script 106# First test whether there's a linker-script for the specific stage defined... 107ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),) 108# need to strip off double quotes 109LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%)) 110else 111# ...then fall back to the generic SPL linker-script 112ifneq ($(CONFIG_SPL_LDSCRIPT),) 113# need to strip off double quotes 114LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) 115endif 116endif 117 118ifeq ($(wildcard $(LDSCRIPT)),) 119 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds 120endif 121ifeq ($(wildcard $(LDSCRIPT)),) 122 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds 123endif 124ifeq ($(wildcard $(LDSCRIPT)),) 125 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds 126endif 127ifeq ($(wildcard $(LDSCRIPT)),) 128$(error could not find linker script) 129endif 130 131# Special flags for CPP when processing the linker script. 132# Pass the version down so we can handle backwards compatibility 133# on the fly. 134LDPPFLAGS += \ 135 -include $(srctree)/include/u-boot/u-boot.lds.h \ 136 -include $(objtree)/include/config.h \ 137 -DCPUDIR=$(CPUDIR) \ 138 $(shell $(LD) --version | \ 139 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 140 141MKIMAGEOUTPUT ?= /dev/null 142 143quiet_cmd_mkimage = MKIMAGE $@ 144cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 145 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 146 147quiet_cmd_mkfitimage = MKIMAGE $@ 148cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \ 149 $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT) 150 151MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 152 153MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 154 155MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE 156 $(call if_changed,mkimage) 157 158ifeq ($(CONFIG_SYS_SOC),"at91") 159MKIMAGEFLAGS_boot.bin = -T atmelimage 160 161ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 162MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 163 164boot.bin: $(obj)/../tools/atmel_pmecc_params 165endif 166 167boot.bin: $(obj)/u-boot-spl.bin FORCE 168 $(call if_changed,mkimage) 169else 170ifdef CONFIG_ARCH_ZYNQ 171MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) 172endif 173ifdef CONFIG_ARCH_ZYNQMP 174ifneq ($(CONFIG_PMUFW_INIT_FILE),"") 175spl/boot.bin: zynqmp-check-pmufw 176zynqmp-check-pmufw: FORCE 177 ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \ 178 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false ) 179endif 180MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \ 181 -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))" 182endif 183 184spl/boot.bin: $(obj)/u-boot-spl.bin FORCE 185 $(call if_changed,mkimage) 186endif 187 188ALL-y += $(obj)/$(SPL_BIN).bin 189 190ifdef CONFIG_SAMSUNG 191ALL-y += $(obj)/$(BOARD)-spl.bin 192endif 193 194ifdef CONFIG_ARCH_SOCFPGA 195ALL-y += $(obj)/$(SPL_BIN).sfp 196endif 197 198ifdef CONFIG_ARCH_SUNXI 199ALL-y += $(obj)/sunxi-spl.bin 200 201ifdef CONFIG_NAND_SUNXI 202ALL-y += $(obj)/sunxi-spl-with-ecc.bin 203endif 204endif 205 206ifeq ($(CONFIG_SYS_SOC),"at91") 207ALL-y += boot.bin 208endif 209 210ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin 211 212ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin 213ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin 214 215all: $(ALL-y) 216 217quiet_cmd_cat = CAT $@ 218cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 219 220quiet_cmd_copy = COPY $@ 221 cmd_copy = cp $< $@ 222 223ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y) 224FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb 225else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y) 226FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo 227else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y) 228FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz 229else 230FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit 231endif 232 233 234ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy) 235$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \ 236 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \ 237 $(FINAL_DTB_CONTAINER) FORCE 238 $(call if_changed,cat) 239 240$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE 241 $(call if_changed,copy) 242else 243$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE 244 $(call if_changed,copy) 245endif 246 247# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end 248$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) 249 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ 250 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; 251 252$(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE 253 $(call if_changed,copy) 254 255pythonpath = PYTHONPATH=scripts/dtc/pylibfdt 256 257quiet_cmd_dtocc = DTOC C $@ 258cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata 259 260quiet_cmd_dtoch = DTOC H $@ 261cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct 262 263quiet_cmd_plat = PLAT $@ 264cmd_plat = $(CC) $(c_flags) -c $< -o $@ 265 266$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ 267 include/generated/dt-structs-gen.h 268 $(call if_changed,plat) 269 270PHONY += dts_dir 271dts_dir: 272 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) 273 274include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 275 $(call if_changed,dtoch) 276 277$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 278 $(call if_changed,dtocc) 279 280ifdef CONFIG_SAMSUNG 281ifdef CONFIG_VAR_SIZE_SPL 282VAR_SIZE_PARAM = --vs 283else 284VAR_SIZE_PARAM = 285endif 286$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 287 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 288 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 289 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 290endif 291 292quiet_cmd_objcopy = OBJCOPY $@ 293cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 294 295OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ 296 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) 297 298$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE 299 $(call if_changed,objcopy) 300 301OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec 302$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE 303 $(call if_changed,objcopy) 304 305LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 306 307# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 308LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker) 309 310# First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) 311ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 312LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE) 313else 314# And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode 315ifneq ($(CONFIG_SPL_TEXT_BASE),) 316LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 317endif 318endif 319 320ifdef CONFIG_TARGET_SOCFPGA_ARRIA10 321MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1 322else 323MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage 324endif 325$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE 326 $(call if_changed,mkimage) 327 328quiet_cmd_mksunxiboot = MKSUNXI $@ 329cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \ 330 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@ 331$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE 332 $(call if_changed,mksunxiboot) 333 334quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@ 335cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \ 336 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \ 337 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \ 338 -o $(CONFIG_SYS_NAND_OOBSIZE) \ 339 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \ 340 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \ 341 -s -b $< $@ 342$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin 343 $(call if_changed,sunxi_spl_image_builder) 344 345# Rule to link u-boot-spl 346# May be overridden by arch/$(ARCH)/config.mk 347quiet_cmd_u-boot-spl ?= LD $@ 348 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 349 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 350 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ 351 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ 352 --end-group \ 353 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) 354 355$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ 356 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 357 $(call if_changed,u-boot-spl) 358 359$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 360 361PHONY += $(u-boot-spl-dirs) 362$(u-boot-spl-dirs): $(u-boot-spl-platdata) 363 $(Q)$(MAKE) $(build)=$@ 364 365quiet_cmd_cpp_lds = LDS $@ 366cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 367 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 368 369$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 370 $(call if_changed_dep,cpp_lds) 371 372# read all saved command lines 373 374targets := $(wildcard $(sort $(targets))) 375cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 376 377ifneq ($(cmd_files),) 378 $(cmd_files): ; # Do not try to update included dependency files 379 include $(cmd_files) 380endif 381 382PHONY += FORCE 383FORCE: 384 385PHONY += dtbs 386dtbs: 387 $(Q)$(MAKE) $(build)=dts dtbs 388 389# Declare the contents of the .PHONY variable as phony. We keep that 390# information in a variable so we can use it in if_changed and friends. 391.PHONY: $(PHONY) 392 393SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST))) 394.SECONDEXPANSION: 395$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) 396 $(call if_changed,fdtgrep) 397 398MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 399 -n "Multi DTB fit image for $(SPL_BIN)" -E \ 400 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB)) 401 402$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE 403 $(call if_changed,mkimage) 404ifneq ($(SOURCE_DATE_EPOCH),) 405 touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit 406 chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit 407endif 408 409$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit 410 @gzip -kf9 $< > $@ 411 412$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit 413 @lzop -f9 $< > $@ 414 415ifdef CONFIG_ARCH_K3 416tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE 417 $(call if_changed,mkfitimage) 418endif 419