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 else
  31 ifeq ($(CONFIG_VPL_BUILD),y)
  32 KBUILD_CPPFLAGS += -DCONFIG_VPL_BUILD
  33 endif
  34 endif
  35
  36 ifeq ($(CONFIG_VPL_BUILD),y)
  37 SPL_BIN := u-boot-vpl
  38 SPL_NAME := vpl
  39 else
  40 ifeq ($(CONFIG_TPL_BUILD),y)
  41 SPL_BIN := u-boot-tpl
  42 SPL_NAME := tpl
  43 else
  44 SPL_BIN := u-boot-spl
  45 SPL_NAME := spl
  46 endif
  47 endif
  48
  49 export SPL_NAME
  50
  51 ifdef CONFIG_SPL_BUILD
  52 SPL_ := SPL_
  53 ifeq ($(CONFIG_VPL_BUILD),y)
  54 SPL_TPL_ := VPL_
  55 else
  56 ifeq ($(CONFIG_TPL_BUILD),y)
  57 SPL_TPL_ := TPL_
  58 else
  59 SPL_TPL_ := SPL_
  60 endif
  61 endif
  62 else
  63 SPL_ :=
  64 SPL_TPL_ :=
  65 endif
  66
  67 ifeq ($(obj)$(CONFIG_SUPPORT_SPL),spl)
  68 $(error You cannot build SPL without enabling CONFIG_SUPPORT_SPL)
  69 endif
  70 ifeq ($(obj)$(CONFIG_SUPPORT_TPL),tpl)
  71 $(error You cannot build TPL without enabling CONFIG_SUPPORT_TPL)
  72 endif
  73 ifeq ($(obj)$(CONFIG_SUPPORT_VPL),vpl)
  74 $(error You cannot build VPL without enabling CONFIG_SUPPORT_VPL)
  75 endif
  76
  77 include $(srctree)/config.mk
  78 include $(srctree)/arch/$(ARCH)/Makefile
  79
  80 include $(srctree)/scripts/Makefile.lib
  81
  82 # Enable garbage collection of un-used sections for SPL
  83 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
  84 LDFLAGS_FINAL += --gc-sections
  85
  86 ifeq ($(CONFIG_$(SPL_TPL_)STACKPROTECTOR),y)
  87 KBUILD_CFLAGS += -fstack-protector-strong
  88 else
  89 KBUILD_CFLAGS += -fno-stack-protector
  90 endif
  91
  92 # FIX ME
  93 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  94                                                         $(NOSTDINC_FLAGS)
  95 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
  96
  97 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  98
  99 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 100 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 101
 102 ifeq ($(CONFIG_TPL_BUILD),y)
 103 libs-$(CONFIG_TPL_FRAMEWORK) += common/spl/
 104 else
 105 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
 106 endif
 107 libs-y += common/init/
 108
 109 # Special handling for a few options which support SPL/TPL/VPL
 110 libs-$(CONFIG_$(SPL_TPL_)LIBCOMMON_SUPPORT) += boot/ common/ cmd/ env/
 111 libs-$(CONFIG_$(SPL_TPL_)LIBGENERIC_SUPPORT) += lib/
 112 ifdef CONFIG_SPL_FRAMEWORK
 113 libs-$(CONFIG_PARTITIONS) += disk/
 114 endif
 115
 116 libs-y += drivers/
 117 libs-$(CONFIG_SPL_MEMORY) += drivers/memory/
 118 libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/dwc3/
 119 libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/cdns3/
 120 libs-y += dts/
 121 libs-y += fs/
 122 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
 123 libs-$(CONFIG_SPL_NET) += net/
 124 libs-$(CONFIG_$(SPL_TPL_)UNIT_TEST) += test/
 125
 126 head-y          := $(addprefix $(obj)/,$(head-y))
 127 libs-y          := $(addprefix $(obj)/,$(libs-y))
 128 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
 129
 130 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
 131
 132 # Add GCC lib
 133 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 134 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 135 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
 136 endif
 137
 138 u-boot-spl-init := $(head-y)
 139 u-boot-spl-main := $(libs-y)
 140 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
 141 platdata-hdr := include/generated/dt-structs-gen.h include/generated/dt-decl.h
 142 platdata-inst := $(obj)/dts/dt-uclass.o $(obj)/dts/dt-device.o
 143 platdata-noinst := $(obj)/dts/dt-plat.o
 144
 145 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA_INST
 146 u-boot-spl-platdata := $(platdata-inst)
 147 u-boot-spl-old-platdata := $(platdata-noinst)
 148 else
 149 u-boot-spl-platdata := $(platdata-noinst)
 150 u-boot-spl-old-platdata := $(platdata-inst)
 151 endif
 152
 153 # Files we need to generate
 154 u-boot-spl-platdata_c := $(patsubst %.o,%.c,$(u-boot-spl-platdata))
 155
 156 # Files we won't generate and should remove
 157 u-boot-spl-old-platdata_c := $(patsubst %.o,%.c,$(u-boot-spl-old-platdata))
 158 endif  # OF_PLATDATA
 159
 160 # Linker Script
 161 # First test whether there's a linker-script for the specific stage defined...
 162 ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
 163 # need to strip off double quotes
 164 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
 165 else
 166 # ...then fall back to the generic SPL linker-script
 167 ifneq ($(CONFIG_SPL_LDSCRIPT),)
 168 # need to strip off double quotes
 169 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 170 endif
 171 endif
 172
 173 ifeq ($(wildcard $(LDSCRIPT)),)
 174         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
 175 endif
 176 ifeq ($(wildcard $(LDSCRIPT)),)
 177         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
 178 endif
 179 ifeq ($(wildcard $(LDSCRIPT)),)
 180         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
 181 endif
 182 ifeq ($(wildcard $(LDSCRIPT)),)
 183 $(error could not find linker script)
 184 endif
 185
 186 # Special flags for CPP when processing the linker script.
 187 # Pass the version down so we can handle backwards compatibility
 188 # on the fly.
 189 LDPPFLAGS += \
 190         -include $(srctree)/include/u-boot/u-boot.lds.h \
 191         -include $(objtree)/include/config.h \
 192         -DCPUDIR=$(CPUDIR) \
 193         $(shell $(LD) --version | \
 194           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 195
 196 # Turn various CONFIG symbols into IMAGE symbols for easy reuse of
 197 # the scripts between SPL, TPL and VPL.
 198 ifneq ($(CONFIG_$(SPL_TPL_)MAX_SIZE),0x0)
 199 LDPPFLAGS += -DIMAGE_MAX_SIZE=$(CONFIG_$(SPL_TPL_)MAX_SIZE)
 200 endif
 201 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
 202 LDPPFLAGS += -DIMAGE_TEXT_BASE=$(CONFIG_$(SPL_TPL_)TEXT_BASE)
 203 endif
 204
 205 MKIMAGEOUTPUT ?= /dev/null
 206
 207 quiet_cmd_mkimage = MKIMAGE $@
 208 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 209         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 210
 211 quiet_cmd_mkfitimage = MKIMAGE $@
 212 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \
 213         $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT)
 214
 215 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
 216
 217 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 218
 219 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
 220         $(call if_changed,mkimage)
 221
 222 ifeq ($(CONFIG_SYS_SOC),"at91")
 223 MKIMAGEFLAGS_boot.bin = -T atmelimage
 224
 225 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
 226 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
 227
 228 $(obj)/boot.bin: $(obj)/../tools/atmel_pmecc_params
 229 endif
 230
 231 $(obj)/boot.bin: $(obj)/u-boot-spl.bin FORCE
 232         $(call if_changed,mkimage)
 233 else
 234 ifdef CONFIG_ARCH_ZYNQ
 235 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
 236 endif
 237 ifdef CONFIG_ARCH_ZYNQMP
 238 ifneq ($(CONFIG_PMUFW_INIT_FILE),"")
 239 spl/boot.bin: zynqmp-check-pmufw
 240 zynqmp-check-pmufw: FORCE
 241         ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \
 242                 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false )
 243 endif
 244 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \
 245         -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))"
 246 endif
 247
 248 $(obj)/$(SPL_BIN)-align.bin: $(obj)/$(SPL_BIN).bin
 249         @dd if=$< of=$@ conv=block,sync bs=4 2>/dev/null;
 250
 251 spl/boot.bin: $(obj)/$(SPL_BIN)-align.bin FORCE
 252         $(call if_changed,mkimage)
 253 endif
 254
 255 INPUTS-y        += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).sym
 256
 257 ifneq ($(CONFIG_ARCH_EXYNOS)$(CONFIG_ARCH_S5PC1XX),)
 258 INPUTS-y        += $(obj)/$(BOARD)-spl.bin
 259 endif
 260
 261 ifneq ($(CONFIG_TARGET_SOCFPGA_GEN5)$(CONFIG_TARGET_SOCFPGA_ARRIA10),)
 262 INPUTS-y        += $(obj)/$(SPL_BIN).sfp
 263 endif
 264
 265 INPUTS-$(CONFIG_TARGET_SOCFPGA_SOC64) += $(obj)/u-boot-spl-dtb.hex
 266
 267 ifdef CONFIG_ARCH_SUNXI
 268 INPUTS-y        += $(obj)/sunxi-spl.bin
 269
 270 ifdef CONFIG_NAND_SUNXI
 271 INPUTS-y        += $(obj)/sunxi-spl-with-ecc.bin
 272 endif
 273 endif
 274
 275 ifeq ($(CONFIG_SYS_SOC),"at91")
 276 INPUTS-y        += $(obj)/boot.bin
 277 endif
 278
 279 ifndef CONFIG_VPL_BUILD
 280 ifdef CONFIG_TPL_BUILD
 281 INPUTS-$(CONFIG_TPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-tpl.bin \
 282         $(obj)/u-boot-x86-reset16-tpl.bin
 283 else
 284 INPUTS-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-spl.bin \
 285         $(obj)/u-boot-x86-reset16-spl.bin
 286 endif
 287 endif
 288
 289 INPUTS-$(CONFIG_ARCH_ZYNQ)              += $(obj)/boot.bin
 290 INPUTS-$(CONFIG_ARCH_ZYNQMP)    += $(obj)/boot.bin
 291
 292 INPUTS-$(CONFIG_ARCH_MEDIATEK)  += $(obj)/u-boot-spl-mtk.bin
 293
 294 all:    $(INPUTS-y)
 295
 296 quiet_cmd_cat = CAT     $@
 297 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 298
 299 quiet_cmd_copy = COPY    $@
 300       cmd_copy = cp $< $@
 301
 302 ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y)
 303 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb
 304 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y)
 305 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo
 306 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y)
 307 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz
 308 else
 309 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit
 310 endif
 311
 312 # Build the .dtb file if needed
 313 #   - OF_REAL is enabled
 314 #   - we have either OF_SEPARATE or OF_HOSTFILE
 315 build_dtb :=
 316 ifneq ($(CONFIG_$(SPL_TPL_)OF_REAL),)
 317 ifeq ($(CONFIG_OF_SEPARATE)$(CONFIG_SANDBOX),y)
 318 build_dtb := y
 319 endif
 320 endif
 321
 322 ifneq ($(build_dtb),)
 323 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
 324                 $(if $(CONFIG_$(SPL_TPL_)SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
 325                 $(FINAL_DTB_CONTAINER)  FORCE
 326         $(call if_changed,cat)
 327
 328 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
 329         $(call if_changed,copy)
 330 else
 331 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
 332         $(call if_changed,copy)
 333 endif
 334
 335 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
 336 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
 337         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
 338         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
 339
 340 $(obj)/$(SPL_BIN).dtb: $(obj)/dts/dt-$(SPL_NAME).dtb FORCE
 341         $(call if_changed,copy)
 342
 343 pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
 344
 345 DTOC_ARGS := $(pythonpath) $(srctree)/tools/dtoc/dtoc \
 346         -d $(obj)/$(SPL_BIN).dtb -p $(SPL_NAME)
 347
 348 ifneq ($(CONFIG_$(SPL_TPL_)OF_PLATDATA_INST),)
 349 DTOC_ARGS += -i
 350 endif
 351
 352 quiet_cmd_dtoc = DTOC    $@
 353 cmd_dtoc = $(DTOC_ARGS) -c $(obj)/dts -C include/generated all
 354
 355 quiet_cmd_plat = PLAT    $@
 356 cmd_plat = $(CC) $(c_flags) -c $< -o $(filter-out $(PHONY),$@)
 357
 358 $(obj)/dts/dt-%.o: $(obj)/dts/dt-%.c $(platdata-hdr)
 359         $(call if_changed,plat)
 360
 361 # Don't use dts_dir here, since it forces running this expensive rule every time
 362 $(platdata-hdr) $(u-boot-spl-platdata_c) &: $(obj)/$(SPL_BIN).dtb FORCE
 363         @[ -d $(obj)/dts ] || mkdir -p $(obj)/dts
 364         @# Remove old files since which ones we generate depends on the setting
 365         @# of OF_PLATDATA_INST and this might change between builds. Leaving old
 366         @# ones around is confusing and it is possible that switching the
 367         @# setting again will use the old one instead of regenerating it.
 368         @rm -f $(u-boot-spl-old-platdata_c) $(u-boot-spl-platdata_c) \
 369                 $(u-boot-spl-old-platdata)
 370         $(call if_changed,dtoc)
 371
 372 ifneq ($(CONFIG_ARCH_EXYNOS)$(CONFIG_ARCH_S5PC1XX),)
 373 ifeq ($(CONFIG_EXYNOS5420),y)
 374 VAR_SIZE_PARAM = --vs
 375 else
 376 VAR_SIZE_PARAM =
 377 endif
 378 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 379         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 380         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 381         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 382 endif
 383
 384 quiet_cmd_objcopy = OBJCOPY $@
 385 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 386
 387 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
 388                 $(if $(CONFIG_$(SPL_TPL_)X86_16BIT_INIT),-R .start16 -R .resetvec)
 389
 390 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
 391         $(call if_changed,objcopy)
 392
 393 OBJCOPYFLAGS_u-boot-x86-start16-spl.bin := -O binary -j .start16
 394 $(obj)/u-boot-x86-start16-spl.bin: $(obj)/u-boot-spl FORCE
 395         $(call if_changed,objcopy)
 396
 397 OBJCOPYFLAGS_u-boot-x86-start16-tpl.bin := -O binary -j .start16
 398 $(obj)/u-boot-x86-start16-tpl.bin: $(obj)/u-boot-tpl FORCE
 399         $(call if_changed,objcopy)
 400
 401 OBJCOPYFLAGS_u-boot-x86-reset16-spl.bin := -O binary -j .resetvec
 402 $(obj)/u-boot-x86-reset16-spl.bin: $(obj)/u-boot-spl FORCE
 403         $(call if_changed,objcopy)
 404
 405 OBJCOPYFLAGS_u-boot-x86-reset16-tpl.bin := -O binary -j .resetvec
 406 $(obj)/u-boot-x86-reset16-tpl.bin: $(obj)/u-boot-tpl FORCE
 407         $(call if_changed,objcopy)
 408
 409 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 410
 411 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 412 LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
 413
 414 LDFLAGS_$(SPL_BIN) += --build-id=none
 415
 416 # Pick the best match (e.g. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
 417 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
 418 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
 419 endif
 420
 421 ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
 422 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1
 423 else
 424 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
 425 endif
 426 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
 427         $(call if_changed,mkimage)
 428
 429 MKIMAGEFLAGS_sunxi-spl.bin = \
 430         -A $(ARCH) \
 431         -T $(CONFIG_SPL_IMAGE_TYPE) \
 432         -a $(CONFIG_SPL_TEXT_BASE) \
 433         -n $(CONFIG_DEFAULT_DEVICE_TREE)
 434
 435 OBJCOPYFLAGS_u-boot-spl-dtb.hex := -I binary -O ihex --change-address=$(CONFIG_SPL_TEXT_BASE)
 436
 437 $(obj)/u-boot-spl-dtb.hex: $(obj)/u-boot-spl-dtb.bin FORCE
 438         $(call if_changed,objcopy)
 439
 440 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
 441         $(call if_changed,mkimage)
 442
 443 quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
 444 cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
 445                                 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
 446                                 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \
 447                                 -o $(CONFIG_SYS_NAND_OOBSIZE) \
 448                                 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
 449                                 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
 450                                 -s -b $< $@
 451 $(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
 452         $(call if_changed,sunxi_spl_image_builder)
 453
 454
 455 # MediaTek's specific SPL build
 456 MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \
 457         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \
 458         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
 459
 460 $(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE
 461         $(call if_changed,mkimage)
 462
 463 quiet_cmd_sym ?= SYM     $@
 464       cmd_sym ?= $(OBJDUMP) -t $< > $@
 465 $(obj)/$(SPL_BIN).sym: $(obj)/$(SPL_BIN) FORCE
 466         $(call if_changed,sym)
 467
 468 # Generate linker list symbols references to force compiler to not optimize
 469 # them away when compiling with LTO
 470 ifdef CONFIG_LTO
 471 u-boot-spl-keep-syms-lto := $(obj)/keep-syms-lto.o
 472 u-boot-spl-keep-syms-lto_c := \
 473         $(patsubst $(obj)/%.o,$(obj)/%.c,$(u-boot-spl-keep-syms-lto))
 474
 475 quiet_cmd_keep_syms_lto = KSL     $@
 476       cmd_keep_syms_lto = \
 477         $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
 478
 479 quiet_cmd_keep_syms_lto_cc = KSLCC   $@
 480       cmd_keep_syms_lto_cc = \
 481         $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
 482
 483 $(u-boot-spl-keep-syms-lto_c): $(u-boot-spl-main) $(u-boot-spl-platdata)
 484         $(call if_changed,keep_syms_lto)
 485 $(u-boot-spl-keep-syms-lto): $(u-boot-spl-keep-syms-lto_c)
 486         $(call if_changed,keep_syms_lto_cc)
 487 else
 488 u-boot-spl-keep-syms-lto :=
 489 endif
 490
 491 # Rule to link u-boot-spl
 492 # May be overridden by arch/$(ARCH)/config.mk
 493 ifeq ($(LTO_ENABLE),y)
 494 quiet_cmd_u-boot-spl ?= LTO     $@
 495       cmd_u-boot-spl ?= \
 496         (                                                                       \
 497                 cd $(obj) &&                                                    \
 498                 $(CC) -nostdlib -nostartfiles $(LTO_FINAL_LDFLAGS) $(c_flags)   \
 499                 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_$(@F):%=-Wl,%)              \
 500                 $(patsubst $(obj)/%,%,$(u-boot-spl-init))                       \
 501                 -Wl,--whole-archive                                             \
 502                         $(patsubst $(obj)/%,%,$(u-boot-spl-main))               \
 503                         $(patsubst $(obj)/%,%,$(u-boot-spl-platdata))           \
 504                         $(patsubst $(obj)/%,%,$(u-boot-spl-keep-syms-lto))      \
 505                         $(PLATFORM_LIBS)                                        \
 506                 -Wl,--no-whole-archive                                          \
 507                 -Wl,-Map,$(SPL_BIN).map -o $(SPL_BIN)                           \
 508         )
 509 else
 510 quiet_cmd_u-boot-spl ?= LD      $@
 511       cmd_u-boot-spl ?= \
 512         (                                                               \
 513                 cd $(obj) &&                                            \
 514                 $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_$(@F))                \
 515                 $(patsubst $(obj)/%,%,$(u-boot-spl-init))               \
 516                 --whole-archive                                         \
 517                         $(patsubst $(obj)/%,%,$(u-boot-spl-main))       \
 518                         $(patsubst $(obj)/%,%,$(u-boot-spl-platdata))   \
 519                 --no-whole-archive                                      \
 520                 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)      \
 521         )
 522 endif
 523
 524 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
 525                 $(u-boot-spl-main) $(u-boot-spl-keep-syms-lto) \
 526                 $(obj)/u-boot-spl.lds FORCE
 527         $(call if_changed,u-boot-spl)
 528
 529 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 530
 531 PHONY += $(u-boot-spl-dirs)
 532 $(u-boot-spl-dirs): $(u-boot-spl-platdata) prepare
 533         $(Q)$(MAKE) $(build)=$@
 534
 535 PHONY += prepare
 536 prepare:
 537         $(Q)$(MAKE) $(build)=$(obj)/.
 538
 539 quiet_cmd_cpp_lds = LDS     $@
 540 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 541                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
 542
 543 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 544         $(call if_changed_dep,cpp_lds)
 545
 546 # read all saved command lines
 547
 548 targets := $(wildcard $(sort $(targets)))
 549 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 550
 551 ifneq ($(cmd_files),)
 552   $(cmd_files): ;       # Do not try to update included dependency files
 553   include $(cmd_files)
 554 endif
 555
 556 PHONY += FORCE
 557 FORCE:
 558
 559 $(obj)/dts/dt-$(SPL_NAME).dtb: dts/dt.dtb
 560         $(Q)$(MAKE) $(build)=$(obj)/dts spl_dtbs
 561
 562 PHONY += dts_dir
 563 dts_dir:
 564         $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
 565
 566 # Declare the contents of the .PHONY variable as phony.  We keep that
 567 # information in a variable so we can use it in if_changed and friends.
 568 .PHONY: $(PHONY)
 569
 570 SPL_OF_LIST_TARGETS = $(patsubst %,dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
 571 SHRUNK_ARCH_DTB = $(addprefix $(obj)/,$(SPL_OF_LIST_TARGETS))
 572 .SECONDEXPANSION:
 573 $(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) dts_dir
 574         $(call if_changed,fdtgrep)
 575
 576 targets += $(SPL_OF_LIST_TARGETS)
 577
 578 MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
 579         -n "Multi DTB fit image for $(SPL_BIN)" -E \
 580         $(patsubst %,-b %,$(SHRUNK_ARCH_DTB))
 581
 582 $(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE
 583         $(call if_changed,mkimage)
 584 ifneq ($(SOURCE_DATE_EPOCH),)
 585         touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit
 586         chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit
 587 endif
 588
 589 $(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit
 590         @gzip -kf9 $< > $@
 591
 592 $(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit
 593         @lzop -f9 $< > $@
 594
 595 ifdef CONFIG_ARCH_K3
 596 tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE
 597         $(call if_changed,mkfitimage)
 598 endif