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