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-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/ 87ifneq ($(CONFIG_SPL_DECOMP_HEADER),y) 88libs-y += drivers/ 89endif 90libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/dwc3/ 91libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/cdns3/ 92libs-y += dts/ 93libs-y += fs/ 94libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ 95libs-$(CONFIG_SPL_NET_SUPPORT) += net/ 96 97head-y := $(addprefix $(obj)/,$(head-y)) 98libs-y := $(addprefix $(obj)/,$(libs-y)) 99u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) 100 101libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 102 103# Add GCC lib 104ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 105PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 106PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 107endif 108 109u-boot-spl-init := $(head-y) 110u-boot-spl-main := $(libs-y) 111ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA 112u-boot-spl-platdata := $(obj)/dts/dt-platdata.o 113endif 114 115# Linker Script 116# First test whether there's a linker-script for the specific stage defined... 117ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),) 118# need to strip off double quotes 119LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%)) 120else 121# ...then fall back to the generic SPL linker-script 122ifneq ($(CONFIG_SPL_LDSCRIPT),) 123# need to strip off double quotes 124LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) 125endif 126endif 127 128ifeq ($(wildcard $(LDSCRIPT)),) 129 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds 130endif 131ifeq ($(wildcard $(LDSCRIPT)),) 132 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds 133endif 134ifeq ($(wildcard $(LDSCRIPT)),) 135 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds 136endif 137ifeq ($(wildcard $(LDSCRIPT)),) 138$(error could not find linker script) 139endif 140 141# Special flags for CPP when processing the linker script. 142# Pass the version down so we can handle backwards compatibility 143# on the fly. 144LDPPFLAGS += \ 145 -include $(srctree)/include/u-boot/u-boot.lds.h \ 146 -include $(objtree)/include/config.h \ 147 -DCPUDIR=$(CPUDIR) \ 148 $(shell $(LD) --version | \ 149 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 150 151MKIMAGEOUTPUT ?= /dev/null 152 153quiet_cmd_mkimage = MKIMAGE $@ 154cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 155 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 156 157MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 158 159MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 160 161MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE 162 $(call if_changed,mkimage) 163 164ifeq ($(CONFIG_SYS_SOC),"at91") 165MKIMAGEFLAGS_boot.bin = -T atmelimage 166 167ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 168MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 169 170boot.bin: $(obj)/../tools/atmel_pmecc_params 171endif 172 173boot.bin: $(obj)/u-boot-spl.bin FORCE 174 $(call if_changed,mkimage) 175else 176ifdef CONFIG_ARCH_ZYNQ 177MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) 178endif 179ifdef CONFIG_ARCH_ZYNQMP 180MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \ 181 -n $(srctree)/$(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 233ifeq ($(CONFIG_SPL_CHECK_SIZE),y) 234BOARD_SIZE_CHECK = \ 235 @actual=`wc -c $@ | awk '{print $$1}'`; \ 236 limit=`printf "%d" $(CONFIG_SPL_MAX_SIZE)`; \ 237 if test $$actual -gt $$limit; then \ 238 echo "$@ exceeds file size limit:" >&2 ; \ 239 echo " limit: $$limit bytes" >&2 ; \ 240 echo " actual: $$actual bytes" >&2 ; \ 241 echo " excess: $$((actual - limit)) bytes" >&2; \ 242 exit 1; \ 243 fi 244else 245BOARD_SIZE_CHECK = 246endif 247 248ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy) 249$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \ 250 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \ 251 $(FINAL_DTB_CONTAINER) FORCE 252 $(call if_changed,cat) 253 254$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE 255 $(call if_changed,copy) 256 $(BOARD_SIZE_CHECK) 257else 258$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE 259 $(call if_changed,copy) 260 $(BOARD_SIZE_CHECK) 261endif 262 263# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end 264$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) 265 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ 266 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; 267 268ifeq ($(CONFIG_TPL_BUILD),y) 269$(obj)/$(SPL_BIN).dtb: dts/dt-tpl.dtb FORCE 270 $(call if_changed,copy) 271else 272$(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE 273 $(call if_changed,copy) 274endif 275 276pythonpath = PYTHONPATH=scripts/dtc/pylibfdt 277 278quiet_cmd_dtocc = DTOC C $@ 279cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata 280 281quiet_cmd_dtoch = DTOC H $@ 282cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct 283 284quiet_cmd_plat = PLAT $@ 285cmd_plat = $(CC) $(c_flags) -c $< -o $@ 286 287$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ 288 include/generated/dt-structs-gen.h 289 $(call if_changed,plat) 290 291PHONY += dts_dir 292dts_dir: 293 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) 294 295include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 296 $(call if_changed,dtoch) 297 298$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 299 $(call if_changed,dtocc) 300 301ifdef CONFIG_SAMSUNG 302ifdef CONFIG_VAR_SIZE_SPL 303VAR_SIZE_PARAM = --vs 304else 305VAR_SIZE_PARAM = 306endif 307$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 308 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 309 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 310 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 311endif 312 313quiet_cmd_objcopy = OBJCOPY $@ 314cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 315 316OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ 317 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) 318 319$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE 320 $(call if_changed,objcopy) 321 322OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec 323$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE 324 $(call if_changed,objcopy) 325 326LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 327 328# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 329LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker) 330 331# First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) 332ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 333LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE) 334else 335# And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode 336ifneq ($(CONFIG_SPL_TEXT_BASE),) 337LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 338endif 339endif 340 341MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage 342$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE 343 $(call if_changed,mkimage) 344 345quiet_cmd_mksunxiboot = MKSUNXI $@ 346cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \ 347 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@ 348$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE 349 $(call if_changed,mksunxiboot) 350 351quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@ 352cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \ 353 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \ 354 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \ 355 -o $(CONFIG_SYS_NAND_OOBSIZE) \ 356 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \ 357 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \ 358 -s -b $< $@ 359$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin 360 $(call if_changed,sunxi_spl_image_builder) 361 362# Rule to link u-boot-spl 363# May be overridden by arch/$(ARCH)/config.mk 364quiet_cmd_u-boot-spl ?= LD $@ 365 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 366 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 367 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ 368 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ 369 --end-group \ 370 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN) && \ 371 $(OBJDUMP) -t $(SPL_BIN) > $(SPL_BIN).sym) 372 373$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ 374 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 375 $(call if_changed,u-boot-spl) 376 377$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 378 379PHONY += $(u-boot-spl-dirs) 380$(u-boot-spl-dirs): $(u-boot-spl-platdata) 381 $(Q)$(MAKE) $(build)=$@ 382 383quiet_cmd_cpp_lds = LDS $@ 384cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 385 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 386 387$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 388 $(call if_changed_dep,cpp_lds) 389 390# read all saved command lines 391 392targets := $(wildcard $(sort $(targets))) 393cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 394 395ifneq ($(cmd_files),) 396 $(cmd_files): ; # Do not try to update included dependency files 397 include $(cmd_files) 398endif 399 400PHONY += FORCE 401FORCE: 402 403PHONY += dtbs 404dtbs: 405 $(Q)$(MAKE) $(build)=dts dtbs 406 407# Declare the contents of the .PHONY variable as phony. We keep that 408# information in a variable so we can use it in if_changed and friends. 409.PHONY: $(PHONY) 410 411SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST))) 412.SECONDEXPANSION: 413$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) 414 $(call if_changed,fdtgrep) 415 416MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 417 -n "Multi DTB fit image for $(SPL_BIN)" -E \ 418 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB)) 419 420$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE 421 $(call if_changed,mkimage) 422 423$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit 424 @gzip -kf9 $< > $@ 425 426$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit 427 @lzop -f9 $< > $@ 428