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