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 232 233 234ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy) 235$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \ 236 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \ 237 $(FINAL_DTB_CONTAINER) FORCE 238 $(call if_changed,cat) 239 240$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE 241 $(call if_changed,copy) 242else 243$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE 244 $(call if_changed,copy) 245endif 246 247# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end 248$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) 249 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ 250 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; 251 252ifeq ($(CONFIG_TPL_BUILD),y) 253$(obj)/$(SPL_BIN).dtb: dts/dt-tpl.dtb FORCE 254 $(call if_changed,copy) 255else 256$(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE 257 $(call if_changed,copy) 258endif 259 260pythonpath = PYTHONPATH=scripts/dtc/pylibfdt 261 262quiet_cmd_dtocc = DTOC C $@ 263cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata 264 265quiet_cmd_dtoch = DTOC H $@ 266cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct 267 268quiet_cmd_plat = PLAT $@ 269cmd_plat = $(CC) $(c_flags) -c $< -o $@ 270 271$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ 272 include/generated/dt-structs-gen.h 273 $(call if_changed,plat) 274 275PHONY += dts_dir 276dts_dir: 277 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) 278 279include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 280 $(call if_changed,dtoch) 281 282$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 283 $(call if_changed,dtocc) 284 285ifdef CONFIG_SAMSUNG 286ifdef CONFIG_VAR_SIZE_SPL 287VAR_SIZE_PARAM = --vs 288else 289VAR_SIZE_PARAM = 290endif 291$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 292 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 293 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 294 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 295endif 296 297quiet_cmd_objcopy = OBJCOPY $@ 298cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 299 300OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ 301 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) 302 303$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE 304 $(call if_changed,objcopy) 305 306OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec 307$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE 308 $(call if_changed,objcopy) 309 310LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 311 312# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 313LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker) 314 315# First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) 316ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 317LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE) 318else 319# And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode 320ifneq ($(CONFIG_SPL_TEXT_BASE),) 321LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 322endif 323endif 324 325MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage 326$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE 327 $(call if_changed,mkimage) 328 329quiet_cmd_mksunxiboot = MKSUNXI $@ 330cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \ 331 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@ 332$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE 333 $(call if_changed,mksunxiboot) 334 335quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@ 336cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \ 337 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \ 338 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \ 339 -o $(CONFIG_SYS_NAND_OOBSIZE) \ 340 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \ 341 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \ 342 -s -b $< $@ 343$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin 344 $(call if_changed,sunxi_spl_image_builder) 345 346# Rule to link u-boot-spl 347# May be overridden by arch/$(ARCH)/config.mk 348quiet_cmd_u-boot-spl ?= LD $@ 349 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 350 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 351 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ 352 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ 353 --end-group \ 354 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN) && \ 355 $(OBJDUMP) -t $(SPL_BIN) > $(SPL_BIN).sym) 356 357$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ 358 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 359 $(call if_changed,u-boot-spl) 360 361$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 362 363PHONY += $(u-boot-spl-dirs) 364$(u-boot-spl-dirs): $(u-boot-spl-platdata) 365 $(Q)$(MAKE) $(build)=$@ 366 367quiet_cmd_cpp_lds = LDS $@ 368cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 369 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 370 371$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 372 $(call if_changed_dep,cpp_lds) 373 374# read all saved command lines 375 376targets := $(wildcard $(sort $(targets))) 377cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 378 379ifneq ($(cmd_files),) 380 $(cmd_files): ; # Do not try to update included dependency files 381 include $(cmd_files) 382endif 383 384PHONY += FORCE 385FORCE: 386 387PHONY += dtbs 388dtbs: 389 $(Q)$(MAKE) $(build)=dts dtbs 390 391# Declare the contents of the .PHONY variable as phony. We keep that 392# information in a variable so we can use it in if_changed and friends. 393.PHONY: $(PHONY) 394 395SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST))) 396.SECONDEXPANSION: 397$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) 398 $(call if_changed,fdtgrep) 399 400MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 401 -n "Multi DTB fit image for $(SPL_BIN)" -E \ 402 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB)) 403 404$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE 405 $(call if_changed,mkimage) 406 407$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit 408 @gzip -kf9 $< > $@ 409 410$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit 411 @lzop -f9 $< > $@ 412