scripts/Makefile.spl

   1 # SPDX-License-Identifier: GPL-2.0+
   2 #
   3 # (C) Copyright 2000-2011
   4 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5 #
   6 # (C) Copyright 2011
   7 # Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
   8 #
   9 # (C) Copyright 2011
  10 # Texas Instruments Incorporated - http://www.ti.com/
  11 # Aneesh V <aneesh@ti.com>
  12 # Based on top-level Makefile.
  13 #
  14
  15 src := $(obj)
  16
  17 # Create output directory if not already present
  18 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
  19
  20 include $(srctree)/scripts/Kbuild.include
  21
  22 -include include/config/auto.conf
  23 -include $(obj)/include/autoconf.mk
  24
  25 UBOOTINCLUDE := -I$(obj)/include $(UBOOTINCLUDE)
  26
  27 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
  28 ifeq ($(CONFIG_TPL_BUILD),y)
  29 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
  30 endif
  31
  32 ifeq ($(CONFIG_TPL_BUILD),y)
  33 SPL_BIN := u-boot-tpl
  34 else
  35 SPL_BIN := u-boot-spl
  36 endif
  37
  38 ifdef CONFIG_SPL_BUILD
  39 SPL_ := SPL_
  40 ifeq ($(CONFIG_TPL_BUILD),y)
  41 SPL_TPL_ := TPL_
  42 else
  43 SPL_TPL_ := SPL_
  44 endif
  45 else
  46 SPL_ :=
  47 SPL_TPL_ :=
  48 endif
  49
  50 ifeq ($(obj)$(CONFIG_SUPPORT_SPL),spl)
  51 $(error You cannot build SPL without enabling CONFIG_SUPPORT_SPL)
  52 endif
  53 ifeq ($(obj)$(CONFIG_SUPPORT_TPL),tpl)
  54 $(error You cannot build TPL without enabling CONFIG_SUPPORT_TPL)
  55 endif
  56
  57 include $(srctree)/config.mk
  58 include $(srctree)/arch/$(ARCH)/Makefile
  59
  60 include $(srctree)/scripts/Makefile.lib
  61
  62 # Enable garbage collection of un-used sections for SPL
  63 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
  64 LDFLAGS_FINAL += --gc-sections
  65
  66 # FIX ME
  67 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  68                                                         $(NOSTDINC_FLAGS)
  69 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
  70
  71 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  72
  73 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  74 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  75
  76 ifeq ($(CONFIG_TPL_BUILD),y)
  77 libs-$(CONFIG_TPL_FRAMEWORK) += common/spl/
  78 else
  79 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
  80 endif
  81 libs-y += common/init/
  82
  83 # Special handling for a few options which support SPL/TPL
  84 ifeq ($(CONFIG_TPL_BUILD),y)
  85 libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
  86 libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
  87 else
  88 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
  89 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
  90 ifdef CONFIG_SPL_FRAMEWORK
  91 libs-$(CONFIG_PARTITIONS) += disk/
  92 endif
  93 endif
  94
  95 libs-y += drivers/
  96 libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/dwc3/
  97 libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/cdns3/
  98 libs-y += dts/
  99 libs-y += fs/
 100 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
 101 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
 102
 103 head-y          := $(addprefix $(obj)/,$(head-y))
 104 libs-y          := $(addprefix $(obj)/,$(libs-y))
 105 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
 106
 107 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
 108
 109 # Add GCC lib
 110 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 111 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 112 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
 113 endif
 114
 115 u-boot-spl-init := $(head-y)
 116 u-boot-spl-main := $(libs-y)
 117 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
 118 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
 119 endif
 120
 121 # Linker Script
 122 # First test whether there's a linker-script for the specific stage defined...
 123 ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
 124 # need to strip off double quotes
 125 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
 126 else
 127 # ...then fall back to the generic SPL linker-script
 128 ifneq ($(CONFIG_SPL_LDSCRIPT),)
 129 # need to strip off double quotes
 130 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 131 endif
 132 endif
 133
 134 ifeq ($(wildcard $(LDSCRIPT)),)
 135         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
 136 endif
 137 ifeq ($(wildcard $(LDSCRIPT)),)
 138         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
 139 endif
 140 ifeq ($(wildcard $(LDSCRIPT)),)
 141         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
 142 endif
 143 ifeq ($(wildcard $(LDSCRIPT)),)
 144 $(error could not find linker script)
 145 endif
 146
 147 # Special flags for CPP when processing the linker script.
 148 # Pass the version down so we can handle backwards compatibility
 149 # on the fly.
 150 LDPPFLAGS += \
 151         -include $(srctree)/include/u-boot/u-boot.lds.h \
 152         -include $(objtree)/include/config.h \
 153         -DCPUDIR=$(CPUDIR) \
 154         $(shell $(LD) --version | \
 155           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 156
 157 # Turn various CONFIG symbols into IMAGE symbols for easy reuse of
 158 # the scripts between SPL and TPL.
 159 ifneq ($(CONFIG_$(SPL_TPL_)MAX_SIZE),)
 160 LDPPFLAGS += -DIMAGE_MAX_SIZE=$(CONFIG_$(SPL_TPL_)MAX_SIZE)
 161 endif
 162 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
 163 LDPPFLAGS += -DIMAGE_TEXT_BASE=$(CONFIG_$(SPL_TPL_)TEXT_BASE)
 164 endif
 165
 166 MKIMAGEOUTPUT ?= /dev/null
 167
 168 quiet_cmd_mkimage = MKIMAGE $@
 169 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 170         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 171
 172 quiet_cmd_mkfitimage = MKIMAGE $@
 173 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \
 174         $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT)
 175
 176 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
 177
 178 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 179
 180 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
 181         $(call if_changed,mkimage)
 182
 183 ifeq ($(CONFIG_SYS_SOC),"at91")
 184 MKIMAGEFLAGS_boot.bin = -T atmelimage
 185
 186 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
 187 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
 188
 189 $(obj)/boot.bin: $(obj)/../tools/atmel_pmecc_params
 190 endif
 191
 192 $(obj)/boot.bin: $(obj)/u-boot-spl.bin FORCE
 193         $(call if_changed,mkimage)
 194 else
 195 ifdef CONFIG_ARCH_ZYNQ
 196 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
 197 endif
 198 ifdef CONFIG_ARCH_ZYNQMP
 199 ifneq ($(CONFIG_PMUFW_INIT_FILE),"")
 200 spl/boot.bin: zynqmp-check-pmufw
 201 zynqmp-check-pmufw: FORCE
 202         ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \
 203                 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false )
 204 endif
 205 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \
 206         -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))"
 207 endif
 208
 209 $(obj)/$(SPL_BIN)-align.bin: $(obj)/$(SPL_BIN).bin
 210         @dd if=$< of=$@ conv=block,sync bs=4 2>/dev/null;
 211
 212 spl/boot.bin: $(obj)/$(SPL_BIN)-align.bin FORCE
 213         $(call if_changed,mkimage)
 214 endif
 215
 216 ALL-y   += $(obj)/$(SPL_BIN).bin
 217
 218 ifdef CONFIG_SAMSUNG
 219 ALL-y   += $(obj)/$(BOARD)-spl.bin
 220 endif
 221
 222 ifneq ($(CONFIG_TARGET_SOCFPGA_GEN5)$(CONFIG_TARGET_SOCFPGA_ARRIA10),)
 223 ALL-y   += $(obj)/$(SPL_BIN).sfp
 224 endif
 225
 226 ifdef CONFIG_ARCH_SUNXI
 227 ALL-y   += $(obj)/sunxi-spl.bin
 228
 229 ifdef CONFIG_NAND_SUNXI
 230 ALL-y   += $(obj)/sunxi-spl-with-ecc.bin
 231 endif
 232 endif
 233
 234 ifeq ($(CONFIG_SYS_SOC),"at91")
 235 ALL-y   += $(obj)/boot.bin
 236 endif
 237
 238 ifdef CONFIG_TPL_BUILD
 239 ALL-$(CONFIG_TPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-tpl.bin \
 240         $(obj)/u-boot-x86-reset16-tpl.bin
 241 else
 242 ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-spl.bin \
 243         $(obj)/u-boot-x86-reset16-spl.bin
 244 endif
 245
 246 ALL-$(CONFIG_ARCH_ZYNQ)         += $(obj)/boot.bin
 247 ALL-$(CONFIG_ARCH_ZYNQMP)       += $(obj)/boot.bin
 248
 249 ALL-$(CONFIG_ARCH_MEDIATEK)     += $(obj)/u-boot-spl-mtk.bin
 250
 251 all:    $(ALL-y)
 252
 253 quiet_cmd_cat = CAT     $@
 254 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 255
 256 quiet_cmd_copy = COPY    $@
 257       cmd_copy = cp $< $@
 258
 259 ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y)
 260 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb
 261 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y)
 262 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo
 263 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y)
 264 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz
 265 else
 266 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit
 267 endif
 268
 269 # Build the .dtb file if:
 270 #   - we are not using OF_PLATDATA
 271 #   - we are using OF_CONTROL
 272 #   - we have either OF_SEPARATE or OF_HOSTFILE
 273 build_dtb :=
 274 ifeq ($(CONFIG_$(SPL_TPL_)OF_PLATDATA),)
 275 ifneq ($(CONFIG_$(SPL_TPL_)OF_CONTROL),)
 276 ifeq ($(CONFIG_OF_SEPARATE)$(CONFIG_OF_HOSTFILE),y)
 277 build_dtb := y
 278 endif
 279 endif
 280 endif
 281
 282 ifneq ($(build_dtb),)
 283 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
 284                 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
 285                 $(FINAL_DTB_CONTAINER)  FORCE
 286         $(call if_changed,cat)
 287
 288 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
 289         $(call if_changed,copy)
 290 else
 291 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
 292         $(call if_changed,copy)
 293 endif
 294
 295 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
 296 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
 297         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
 298         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
 299
 300 $(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE
 301         $(call if_changed,copy)
 302
 303 pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
 304
 305 quiet_cmd_dtocc = DTOC C  $@
 306 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
 307
 308 quiet_cmd_dtoch = DTOC H  $@
 309 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
 310
 311 quiet_cmd_plat = PLAT    $@
 312 cmd_plat = $(CC) $(c_flags) -c $< -o $(filter-out $(PHONY),$@)
 313
 314 targets += $(obj)/dts/dt-platdata.o
 315 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \
 316                 include/generated/dt-structs-gen.h prepare FORCE
 317         $(call if_changed,plat)
 318
 319 PHONY += dts_dir
 320 dts_dir:
 321         $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
 322
 323 include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
 324         $(call if_changed,dtoch)
 325
 326 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE
 327         $(call if_changed,dtocc)
 328
 329 ifdef CONFIG_SAMSUNG
 330 ifdef CONFIG_VAR_SIZE_SPL
 331 VAR_SIZE_PARAM = --vs
 332 else
 333 VAR_SIZE_PARAM =
 334 endif
 335 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 336         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 337         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 338         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 339 endif
 340
 341 quiet_cmd_objcopy = OBJCOPY $@
 342 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 343
 344 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
 345                 $(if $(CONFIG_$(SPL_TPL_)X86_16BIT_INIT),-R .start16 -R .resetvec)
 346
 347 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
 348         $(call if_changed,objcopy)
 349
 350 OBJCOPYFLAGS_u-boot-x86-start16-spl.bin := -O binary -j .start16
 351 $(obj)/u-boot-x86-start16-spl.bin: $(obj)/u-boot-spl FORCE
 352         $(call if_changed,objcopy)
 353
 354 OBJCOPYFLAGS_u-boot-x86-start16-tpl.bin := -O binary -j .start16
 355 $(obj)/u-boot-x86-start16-tpl.bin: $(obj)/u-boot-tpl FORCE
 356         $(call if_changed,objcopy)
 357
 358 OBJCOPYFLAGS_u-boot-x86-reset16-spl.bin := -O binary -j .resetvec
 359 $(obj)/u-boot-x86-reset16-spl.bin: $(obj)/u-boot-spl FORCE
 360         $(call if_changed,objcopy)
 361
 362 OBJCOPYFLAGS_u-boot-x86-reset16-tpl.bin := -O binary -j .resetvec
 363 $(obj)/u-boot-x86-reset16-tpl.bin: $(obj)/u-boot-tpl FORCE
 364         $(call if_changed,objcopy)
 365
 366 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 367
 368 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 369 LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
 370
 371 # Pick the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
 372 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
 373 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
 374 endif
 375
 376 ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
 377 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1
 378 else
 379 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
 380 endif
 381 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
 382         $(call if_changed,mkimage)
 383
 384 quiet_cmd_mksunxiboot = MKSUNXI $@
 385 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \
 386                         --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@
 387 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
 388         $(call if_changed,mksunxiboot)
 389
 390 quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
 391 cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
 392                                 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
 393                                 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \
 394                                 -o $(CONFIG_SYS_NAND_OOBSIZE) \
 395                                 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
 396                                 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
 397                                 -s -b $< $@
 398 $(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
 399         $(call if_changed,sunxi_spl_image_builder)
 400
 401
 402 # MediaTek's specific SPL build
 403 MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \
 404         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \
 405         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
 406
 407 $(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE
 408         $(call if_changed,mkimage)
 409
 410 # Rule to link u-boot-spl
 411 # May be overridden by arch/$(ARCH)/config.mk
 412 quiet_cmd_u-boot-spl ?= LD      $@
 413       cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_$(@F)) \
 414                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
 415                        $(patsubst $(obj)/%,%,$(u-boot-spl-main))  \
 416                        $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
 417                        --end-group \
 418                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
 419
 420 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
 421                 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
 422         $(call if_changed,u-boot-spl)
 423
 424 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 425
 426 PHONY += $(u-boot-spl-dirs)
 427 $(u-boot-spl-dirs): $(u-boot-spl-platdata) prepare
 428         $(Q)$(MAKE) $(build)=$@
 429
 430 PHONY += prepare
 431 prepare:
 432         $(Q)$(MAKE) $(build)=$(obj)/.
 433
 434 quiet_cmd_cpp_lds = LDS     $@
 435 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 436                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
 437
 438 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 439         $(call if_changed_dep,cpp_lds)
 440
 441 # read all saved command lines
 442
 443 targets := $(wildcard $(sort $(targets)))
 444 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 445
 446 ifneq ($(cmd_files),)
 447   $(cmd_files): ;       # Do not try to update included dependency files
 448   include $(cmd_files)
 449 endif
 450
 451 PHONY += FORCE
 452 FORCE:
 453
 454 PHONY += dtbs
 455 dtbs:
 456         $(Q)$(MAKE) $(build)=dts dtbs
 457
 458 # Declare the contents of the .PHONY variable as phony.  We keep that
 459 # information in a variable so we can use it in if_changed and friends.
 460 .PHONY: $(PHONY)
 461
 462 SPL_OF_LIST_TARGETS = $(patsubst %,dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
 463 SHRUNK_ARCH_DTB = $(addprefix $(obj)/,$(SPL_OF_LIST_TARGETS))
 464 .SECONDEXPANSION:
 465 $(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) dts_dir
 466         $(call if_changed,fdtgrep)
 467
 468 targets += $(SPL_OF_LIST_TARGETS)
 469
 470 MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
 471         -n "Multi DTB fit image for $(SPL_BIN)" -E \
 472         $(patsubst %,-b %,$(SHRUNK_ARCH_DTB))
 473
 474 $(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE
 475         $(call if_changed,mkimage)
 476 ifneq ($(SOURCE_DATE_EPOCH),)
 477         touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit
 478         chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit
 479 endif
 480
 481 $(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit
 482         @gzip -kf9 $< > $@
 483
 484 $(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit
 485         @lzop -f9 $< > $@
 486
 487 ifdef CONFIG_ARCH_K3
 488 tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE
 489         $(call if_changed,mkfitimage)
 490 endif