1# 2# (C) Copyright 2000-2011 3# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4# 5# (C) Copyright 2011 6# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com. 7# 8# (C) Copyright 2011 9# Texas Instruments Incorporated - http://www.ti.com/ 10# Aneesh V <aneesh@ti.com> 11# 12# SPDX-License-Identifier: GPL-2.0+ 13# 14# Based on top-level Makefile. 15# 16 17src := $(obj) 18 19# Create output directory if not already present 20_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj)) 21 22include $(srctree)/scripts/Kbuild.include 23 24-include include/config/auto.conf 25-include $(obj)/include/autoconf.mk 26 27KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD 28ifeq ($(CONFIG_TPL_BUILD),y) 29KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD 30endif 31 32ifeq ($(CONFIG_TPL_BUILD),y) 33SPL_BIN := u-boot-tpl 34else 35SPL_BIN := u-boot-spl 36endif 37 38ifdef CONFIG_SPL_BUILD 39SPL_ := SPL_ 40ifeq ($(CONFIG_TPL_BUILD),y) 41SPL_TPL_ := TPL_ 42else 43SPL_TPL_ := SPL_ 44endif 45else 46SPL_ := 47SPL_TPL_ := 48endif 49 50include $(srctree)/config.mk 51include $(srctree)/arch/$(ARCH)/Makefile 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 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 146 147MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 148 149MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 150 151MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE 152 $(call if_changed,mkimage) 153 154ifeq ($(CONFIG_SYS_SOC),"at91") 155MKIMAGEFLAGS_boot.bin = -T atmelimage 156 157ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 158MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 159 160boot.bin: $(obj)/../tools/atmel_pmecc_params 161endif 162 163boot.bin: $(obj)/u-boot-spl.bin FORCE 164 $(call if_changed,mkimage) 165else 166ifdef CONFIG_ARCH_ZYNQ 167MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) 168endif 169ifdef CONFIG_ARCH_ZYNQMP 170MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \ 171 -n $(srctree)/$(CONFIG_PMUFW_INIT_FILE) 172endif 173 174spl/boot.bin: $(obj)/u-boot-spl.bin FORCE 175 $(call if_changed,mkimage) 176endif 177 178ALL-y += $(obj)/$(SPL_BIN).bin 179 180ifdef CONFIG_SAMSUNG 181ALL-y += $(obj)/$(BOARD)-spl.bin 182endif 183 184ifdef CONFIG_ARCH_SOCFPGA 185ALL-y += $(obj)/$(SPL_BIN).sfp 186endif 187 188ifdef CONFIG_ARCH_SUNXI 189ALL-y += $(obj)/sunxi-spl.bin 190 191ifdef CONFIG_NAND_SUNXI 192ALL-y += $(obj)/sunxi-spl-with-ecc.bin 193endif 194endif 195 196ifeq ($(CONFIG_SYS_SOC),"at91") 197ALL-y += boot.bin 198endif 199 200ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin 201 202ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin 203ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin 204 205all: $(ALL-y) 206 207quiet_cmd_cat = CAT $@ 208cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 209 210quiet_cmd_copy = COPY $@ 211 cmd_copy = cp $< $@ 212 213ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y) 214FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb 215else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y) 216FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo 217else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y) 218FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz 219else 220FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit 221endif 222 223 224ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy) 225$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \ 226 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \ 227 $(FINAL_DTB_CONTAINER) FORCE 228 $(call if_changed,cat) 229 230$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE 231 $(call if_changed,copy) 232else 233$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE 234 $(call if_changed,copy) 235endif 236 237# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end 238$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) 239 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ 240 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; 241 242$(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE 243 $(call if_changed,copy) 244 245pythonpath = PYTHONPATH=scripts/dtc/pylibfdt 246 247quiet_cmd_dtocc = DTOC C $@ 248cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata 249 250quiet_cmd_dtoch = DTOC H $@ 251cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct 252 253quiet_cmd_plat = PLAT $@ 254cmd_plat = $(CC) $(c_flags) -c $< -o $@ 255 256$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ 257 include/generated/dt-structs-gen.h 258 $(call if_changed,plat) 259 260PHONY += dts_dir 261dts_dir: 262 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) 263 264include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 265 $(call if_changed,dtoch) 266 267$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 268 $(call if_changed,dtocc) 269 270ifdef CONFIG_SAMSUNG 271ifdef CONFIG_VAR_SIZE_SPL 272VAR_SIZE_PARAM = --vs 273else 274VAR_SIZE_PARAM = 275endif 276$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 277 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 278 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 279 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 280endif 281 282quiet_cmd_objcopy = OBJCOPY $@ 283cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 284 285OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ 286 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) 287 288$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE 289 $(call if_changed,objcopy) 290 291OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec 292$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE 293 $(call if_changed,objcopy) 294 295LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 296 297# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 298LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker) 299 300# First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) 301ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 302LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE) 303else 304# And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode 305ifneq ($(CONFIG_SPL_TEXT_BASE),) 306LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 307endif 308endif 309 310MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage 311$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE 312 $(call if_changed,mkimage) 313 314quiet_cmd_mksunxiboot = MKSUNXI $@ 315cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \ 316 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@ 317$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE 318 $(call if_changed,mksunxiboot) 319 320quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@ 321cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \ 322 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \ 323 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \ 324 -o $(CONFIG_SYS_NAND_OOBSIZE) \ 325 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \ 326 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \ 327 -s -b $< $@ 328$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin 329 $(call if_changed,sunxi_spl_image_builder) 330 331# Rule to link u-boot-spl 332# May be overridden by arch/$(ARCH)/config.mk 333quiet_cmd_u-boot-spl ?= LD $@ 334 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 335 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 336 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ 337 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ 338 --end-group \ 339 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) 340 341$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ 342 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 343 $(call if_changed,u-boot-spl) 344 345$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 346 347PHONY += $(u-boot-spl-dirs) 348$(u-boot-spl-dirs): $(u-boot-spl-platdata) 349 $(Q)$(MAKE) $(build)=$@ 350 351quiet_cmd_cpp_lds = LDS $@ 352cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 353 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 354 355$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 356 $(call if_changed_dep,cpp_lds) 357 358# read all saved command lines 359 360targets := $(wildcard $(sort $(targets))) 361cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 362 363ifneq ($(cmd_files),) 364 $(cmd_files): ; # Do not try to update included dependency files 365 include $(cmd_files) 366endif 367 368PHONY += FORCE 369FORCE: 370 371PHONY += dtbs 372dtbs: 373 $(Q)$(MAKE) $(build)=dts dtbs 374 375# Declare the contents of the .PHONY variable as phony. We keep that 376# information in a variable so we can use it in if_changed and friends. 377.PHONY: $(PHONY) 378 379SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST))) 380.SECONDEXPANSION: 381$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) 382 $(call if_changed,fdtgrep) 383 384MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 385 -n "Multi DTB fit image for $(SPL_BIN)" -E \ 386 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB)) 387 388$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE 389 $(call if_changed,mkimage) 390 391$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit 392 @gzip -kf9 $< > $@ 393 394$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit 395 @lzop -f9 $< > $@ 396