scripts/Makefile.spl

   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
  17 src := $(obj)
  18
  19 # Create output directory if not already present
  20 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
  21
  22 include $(srctree)/scripts/Kbuild.include
  23
  24 -include include/config/auto.conf
  25 -include $(obj)/include/autoconf.mk
  26
  27 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
  28 ifeq ($(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 include $(srctree)/config.mk
  51 include $(srctree)/arch/$(ARCH)/Makefile
  52
  53 # Enable garbage collection of un-used sections for SPL
  54 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
  55 LDFLAGS_FINAL += --gc-sections
  56
  57 # FIX ME
  58 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  59                                                         $(NOSTDINC_FLAGS)
  60 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
  61
  62 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  63
  64 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  65 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  66
  67 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
  68 libs-y += common/init/
  69
  70 # Special handling for a few options which support SPL/TPL
  71 ifeq ($(CONFIG_TPL_BUILD),y)
  72 libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
  73 libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
  74 else
  75 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
  76 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
  77 endif
  78
  79 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
  80 libs-y += drivers/
  81 libs-$(CONFIG_SPL_USB_GADGET_SUPPORT) += drivers/usb/dwc3/
  82 libs-y += dts/
  83 libs-y += fs/
  84 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
  85 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
  86
  87 head-y          := $(addprefix $(obj)/,$(head-y))
  88 libs-y          := $(addprefix $(obj)/,$(libs-y))
  89 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
  90
  91 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
  92
  93 # Add GCC lib
  94 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
  95 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
  96 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
  97 endif
  98
  99 u-boot-spl-init := $(head-y)
 100 u-boot-spl-main := $(libs-y)
 101 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA
 102 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
 103 endif
 104
 105 # Linker Script
 106 # First test whether there's a linker-script for the specific stage defined...
 107 ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),)
 108 # need to strip off double quotes
 109 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%))
 110 else
 111 # ...then fall back to the generic SPL linker-script
 112 ifneq ($(CONFIG_SPL_LDSCRIPT),)
 113 # need to strip off double quotes
 114 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 115 endif
 116 endif
 117
 118 ifeq ($(wildcard $(LDSCRIPT)),)
 119         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
 120 endif
 121 ifeq ($(wildcard $(LDSCRIPT)),)
 122         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
 123 endif
 124 ifeq ($(wildcard $(LDSCRIPT)),)
 125         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
 126 endif
 127 ifeq ($(wildcard $(LDSCRIPT)),)
 128 $(error could not find linker script)
 129 endif
 130
 131 # Special flags for CPP when processing the linker script.
 132 # Pass the version down so we can handle backwards compatibility
 133 # on the fly.
 134 LDPPFLAGS += \
 135         -include $(srctree)/include/u-boot/u-boot.lds.h \
 136         -include $(objtree)/include/config.h \
 137         -DCPUDIR=$(CPUDIR) \
 138         $(shell $(LD) --version | \
 139           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 140
 141 MKIMAGEOUTPUT ?= /dev/null
 142
 143 quiet_cmd_mkimage = MKIMAGE $@
 144 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 145         $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
 146
 147 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
 148
 149 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 150
 151 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
 152         $(call if_changed,mkimage)
 153
 154 ifeq ($(CONFIG_SYS_SOC),"at91")
 155 MKIMAGEFLAGS_boot.bin = -T atmelimage
 156
 157 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
 158 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
 159
 160 boot.bin: $(obj)/../tools/atmel_pmecc_params
 161 endif
 162
 163 boot.bin: $(obj)/u-boot-spl.bin FORCE
 164         $(call if_changed,mkimage)
 165 else
 166 ifdef CONFIG_ARCH_ZYNQ
 167 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
 168 endif
 169 ifdef CONFIG_ARCH_ZYNQMP
 170 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
 171 endif
 172
 173 spl/boot.bin: $(obj)/u-boot-spl.bin FORCE
 174         $(call if_changed,mkimage)
 175 endif
 176
 177 ALL-y   += $(obj)/$(SPL_BIN).bin
 178
 179 ifdef CONFIG_SAMSUNG
 180 ALL-y   += $(obj)/$(BOARD)-spl.bin
 181 endif
 182
 183 ifdef CONFIG_ARCH_SOCFPGA
 184 ALL-y   += $(obj)/$(SPL_BIN).sfp
 185 endif
 186
 187 ifdef CONFIG_ARCH_SUNXI
 188 ALL-y   += $(obj)/sunxi-spl.bin
 189
 190 ifdef CONFIG_NAND_SUNXI
 191 ALL-y   += $(obj)/sunxi-spl-with-ecc.bin
 192 endif
 193 endif
 194
 195 ifeq ($(CONFIG_SYS_SOC),"at91")
 196 ALL-y   += boot.bin
 197 endif
 198
 199 ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin
 200
 201 ALL-$(CONFIG_ARCH_ZYNQ)         += $(obj)/boot.bin
 202 ALL-$(CONFIG_ARCH_ZYNQMP)       += $(obj)/boot.bin
 203
 204 all:    $(ALL-y)
 205
 206 quiet_cmd_cat = CAT     $@
 207 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 208
 209 quiet_cmd_copy = COPY    $@
 210       cmd_copy = cp $< $@
 211
 212 ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy)
 213 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
 214                 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
 215                 $(obj)/$(SPL_BIN).dtb FORCE
 216         $(call if_changed,cat)
 217
 218 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
 219         $(call if_changed,copy)
 220 else
 221 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
 222         $(call if_changed,copy)
 223 endif
 224
 225 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
 226 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
 227         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
 228         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
 229
 230 # Pass the original device tree file through fdtgrep twice. The first pass
 231 # removes any unwanted nodes (i.e. those which don't have the
 232 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
 233 # pass removes various unused properties from the remaining nodes.
 234 # The output is typically a much smaller device tree file.
 235 ifeq ($(CONFIG_TPL_BUILD),y)
 236 fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl
 237 else
 238 fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl
 239 endif
 240 quiet_cmd_fdtgrep = FDTGREP $@
 241       cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \
 242                 -n /chosen -n /config -O dtb | \
 243         $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
 244                 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
 245
 246 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
 247         $(call if_changed,fdtgrep)
 248
 249 pythonpath = PYTHONPATH=tools
 250
 251 quiet_cmd_dtocc = DTOC C  $@
 252 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
 253
 254 quiet_cmd_dtoch = DTOC H  $@
 255 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
 256
 257 quiet_cmd_plat = PLAT    $@
 258 cmd_plat = $(CC) $(c_flags) -c $< -o $@
 259
 260 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \
 261                 include/generated/dt-structs-gen.h
 262         $(call if_changed,plat)
 263
 264 PHONY += dts_dir
 265 dts_dir:
 266         $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
 267
 268 include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir checkdtoc
 269         $(call if_changed,dtoch)
 270
 271 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir checkdtoc
 272         $(call if_changed,dtocc)
 273
 274 ifdef CONFIG_SAMSUNG
 275 ifdef CONFIG_VAR_SIZE_SPL
 276 VAR_SIZE_PARAM = --vs
 277 else
 278 VAR_SIZE_PARAM =
 279 endif
 280 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 281         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 282         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 283         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 284 endif
 285
 286 quiet_cmd_objcopy = OBJCOPY $@
 287 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 288
 289 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
 290                 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec)
 291
 292 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
 293         $(call if_changed,objcopy)
 294
 295 OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec
 296 $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
 297         $(call if_changed,objcopy)
 298
 299 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 300
 301 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 302 LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
 303
 304 # First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
 305 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
 306 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
 307 else
 308 # And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode
 309 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 310 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 311 endif
 312 endif
 313
 314 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
 315 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
 316         $(call if_changed,mkimage)
 317
 318 quiet_cmd_mksunxiboot = MKSUNXI $@
 319 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \
 320                         --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@
 321 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
 322         $(call if_changed,mksunxiboot)
 323
 324 quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
 325 cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
 326                                 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
 327                                 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \
 328                                 -o $(CONFIG_SYS_NAND_OOBSIZE) \
 329                                 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
 330                                 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
 331                                 -s -b $< $@
 332 $(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
 333         $(call if_changed,sunxi_spl_image_builder)
 334
 335 # Rule to link u-boot-spl
 336 # May be overridden by arch/$(ARCH)/config.mk
 337 quiet_cmd_u-boot-spl ?= LD      $@
 338       cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 339                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
 340                        $(patsubst $(obj)/%,%,$(u-boot-spl-main))  \
 341                        $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
 342                        --end-group \
 343                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
 344
 345 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
 346                 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
 347         $(call if_changed,u-boot-spl)
 348
 349 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 350
 351 PHONY += $(u-boot-spl-dirs)
 352 $(u-boot-spl-dirs): $(u-boot-spl-platdata)
 353         $(Q)$(MAKE) $(build)=$@
 354
 355 quiet_cmd_cpp_lds = LDS     $@
 356 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 357                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
 358
 359 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 360         $(call if_changed_dep,cpp_lds)
 361
 362 # read all saved command lines
 363
 364 targets := $(wildcard $(sort $(targets)))
 365 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 366
 367 ifneq ($(cmd_files),)
 368   $(cmd_files): ;       # Do not try to update included dependency files
 369   include $(cmd_files)
 370 endif
 371
 372 checkdtoc: tools
 373         @if ! ( echo 'import libfdt' | ( PYTHONPATH=tools $(PYTHON) )); then \
 374                 echo '*** dtoc needs the Python libfdt library. Either '; \
 375                 echo '*** install it on your system, or try:'; \
 376                 echo '***'; \
 377                 echo '*** sudo apt-get install swig libpython-dev'; \
 378                 echo '***'; \
 379                 echo '*** to have U-Boot build its own version.'; \
 380                 false; \
 381         fi
 382
 383 PHONY += FORCE
 384 FORCE:
 385
 386 # Declare the contents of the .PHONY variable as phony.  We keep that
 387 # information in a variable so we can use it in if_changed and friends.
 388 .PHONY: $(PHONY)