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