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 67ifeq ($(CONFIG_TPL_BUILD),y) 68ifndef CONFIG_TPL_TINY_FRAMEWORK 69libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/ 70endif 71else 72libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/ 73endif 74 75libs-y += common/init/ 76 77# Special handling for a few options which support SPL/TPL 78ifeq ($(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) += drivers/usb/dwc3/ 89libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/cdns3/ 90libs-y += dts/ 91libs-y += fs/ 92libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ 93libs-$(CONFIG_SPL_NET_SUPPORT) += net/ 94 95head-y := $(addprefix $(obj)/,$(head-y)) 96libs-y := $(addprefix $(obj)/,$(libs-y)) 97u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) 98 99libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 100 101# Add GCC lib 102ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 103PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 104PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 105endif 106 107u-boot-spl-init := $(head-y) 108u-boot-spl-main := $(libs-y) 109ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA 110u-boot-spl-platdata := $(obj)/dts/dt-platdata.o 111endif 112 113# Linker Script 114# First test whether there's a linker-script for the specific stage defined... 115ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),) 116# need to strip off double quotes 117LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%)) 118else 119# ...then fall back to the generic SPL linker-script 120ifneq ($(CONFIG_SPL_LDSCRIPT),) 121# need to strip off double quotes 122LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) 123endif 124endif 125 126ifeq ($(wildcard $(LDSCRIPT)),) 127 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds 128endif 129ifeq ($(wildcard $(LDSCRIPT)),) 130 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds 131endif 132ifeq ($(wildcard $(LDSCRIPT)),) 133 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds 134endif 135ifeq ($(wildcard $(LDSCRIPT)),) 136$(error could not find linker script) 137endif 138 139# Special flags for CPP when processing the linker script. 140# Pass the version down so we can handle backwards compatibility 141# on the fly. 142LDPPFLAGS += \ 143 -include $(srctree)/include/u-boot/u-boot.lds.h \ 144 -include $(objtree)/include/config.h \ 145 -DCPUDIR=$(CPUDIR) \ 146 $(shell $(LD) --version | \ 147 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 148 149MKIMAGEOUTPUT ?= /dev/null 150 151quiet_cmd_mkimage = MKIMAGE $@ 152cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 153 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 154 155MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 156 157MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 158 159MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE 160 $(call if_changed,mkimage) 161 162ifeq ($(CONFIG_SYS_SOC),"at91") 163MKIMAGEFLAGS_boot.bin = -T atmelimage 164 165ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 166MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 167 168boot.bin: $(obj)/../tools/atmel_pmecc_params 169endif 170 171boot.bin: $(obj)/u-boot-spl.bin FORCE 172 $(call if_changed,mkimage) 173else 174ifdef CONFIG_ARCH_ZYNQ 175MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) 176endif 177ifdef CONFIG_ARCH_ZYNQMP 178MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \ 179 -n $(srctree)/$(CONFIG_PMUFW_INIT_FILE) 180endif 181 182spl/boot.bin: $(obj)/u-boot-spl.bin FORCE 183 $(call if_changed,mkimage) 184endif 185 186ALL-y += $(obj)/$(SPL_BIN).bin 187 188ifdef CONFIG_SAMSUNG 189ALL-y += $(obj)/$(BOARD)-spl.bin 190endif 191 192ifdef CONFIG_ARCH_SOCFPGA 193ALL-y += $(obj)/$(SPL_BIN).sfp 194endif 195 196ifdef CONFIG_ARCH_SUNXI 197ALL-y += $(obj)/sunxi-spl.bin 198 199ifdef CONFIG_NAND_SUNXI 200ALL-y += $(obj)/sunxi-spl-with-ecc.bin 201endif 202endif 203 204ifeq ($(CONFIG_SYS_SOC),"at91") 205ALL-y += boot.bin 206endif 207 208ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin 209 210ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin 211ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin 212 213all: $(ALL-y) 214 215quiet_cmd_cat = CAT $@ 216cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 217 218quiet_cmd_copy = COPY $@ 219 cmd_copy = cp $< $@ 220 221ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y) 222FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb 223else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y) 224FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo 225else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y) 226FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz 227else 228FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit 229endif 230 231 232ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy) 233$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \ 234 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \ 235 $(FINAL_DTB_CONTAINER) FORCE 236 $(call if_changed,cat) 237 238$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE 239 $(call if_changed,copy) 240else 241$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE 242 $(call if_changed,copy) 243endif 244 245# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end 246$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) 247 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ 248 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; 249 250ifeq ($(CONFIG_TPL_BUILD),y) 251$(obj)/$(SPL_BIN).dtb: dts/dt-tpl.dtb FORCE 252 $(call if_changed,copy) 253else 254$(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE 255 $(call if_changed,copy) 256endif 257 258pythonpath = PYTHONPATH=scripts/dtc/pylibfdt 259 260quiet_cmd_dtocc = DTOC C $@ 261cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata 262 263quiet_cmd_dtoch = DTOC H $@ 264cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct 265 266quiet_cmd_plat = PLAT $@ 267cmd_plat = $(CC) $(c_flags) -c $< -o $@ 268 269$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ 270 include/generated/dt-structs-gen.h 271 $(call if_changed,plat) 272 273PHONY += dts_dir 274dts_dir: 275 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) 276 277include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 278 $(call if_changed,dtoch) 279 280$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 281 $(call if_changed,dtocc) 282 283ifdef CONFIG_SAMSUNG 284ifdef CONFIG_VAR_SIZE_SPL 285VAR_SIZE_PARAM = --vs 286else 287VAR_SIZE_PARAM = 288endif 289$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 290 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 291 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 292 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 293endif 294 295quiet_cmd_objcopy = OBJCOPY $@ 296cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 297 298OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ 299 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) 300 301$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE 302 $(call if_changed,objcopy) 303 304OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec 305$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE 306 $(call if_changed,objcopy) 307 308LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 309 310# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 311LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker) 312 313# First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) 314ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 315LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE) 316else 317# And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode 318ifneq ($(CONFIG_SPL_TEXT_BASE),) 319LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 320endif 321endif 322 323MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage 324$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE 325 $(call if_changed,mkimage) 326 327quiet_cmd_mksunxiboot = MKSUNXI $@ 328cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \ 329 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@ 330$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE 331 $(call if_changed,mksunxiboot) 332 333quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@ 334cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \ 335 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \ 336 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \ 337 -o $(CONFIG_SYS_NAND_OOBSIZE) \ 338 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \ 339 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \ 340 -s -b $< $@ 341$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin 342 $(call if_changed,sunxi_spl_image_builder) 343 344# Rule to link u-boot-spl 345# May be overridden by arch/$(ARCH)/config.mk 346quiet_cmd_u-boot-spl ?= LD $@ 347 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 348 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 349 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ 350 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ 351 --end-group \ 352 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN) && \ 353 $(OBJDUMP) -t $(SPL_BIN) > $(SPL_BIN).sym) 354 355$(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 $(call if_changed,mkimage) 404 405$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit 406 @gzip -kf9 $< > $@ 407 408$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit 409 @lzop -f9 $< > $@ 410