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