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