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 else
  41 SPL_ :=
  42 endif
  43
  44 include $(srctree)/config.mk
  45 include $(srctree)/arch/$(ARCH)/Makefile
  46
  47 # Enable garbage collection of un-used sections for SPL
  48 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
  49 LDFLAGS_FINAL += --gc-sections
  50
  51 # FIX ME
  52 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  53                                                         $(NOSTDINC_FLAGS)
  54 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
  55
  56 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  57
  58 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  59 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  60
  61 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
  62 libs-y += common/init/
  63
  64 # Special handling for a few options which support SPL/TPL
  65 ifeq ($(CONFIG_TPL_BUILD),y)
  66 libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/
  67 libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
  68 else
  69 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/
  70 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
  71 endif
  72
  73 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
  74 libs-y += drivers/
  75 libs-$(CONFIG_SPL_USB_GADGET_SUPPORT) += drivers/usb/dwc3/
  76 libs-y += dts/
  77 libs-y += fs/
  78 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
  79 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
  80
  81 head-y          := $(addprefix $(obj)/,$(head-y))
  82 libs-y          := $(addprefix $(obj)/,$(libs-y))
  83 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
  84
  85 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
  86
  87 # Add GCC lib
  88 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
  89 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
  90 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
  91 endif
  92
  93 u-boot-spl-init := $(head-y)
  94 u-boot-spl-main := $(libs-y)
  95 ifdef CONFIG_SPL_OF_PLATDATA
  96 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
  97 endif
  98
  99 # Linker Script
 100 ifdef CONFIG_SPL_LDSCRIPT
 101 # need to strip off double quotes
 102 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 103 endif
 104
 105 ifeq ($(wildcard $(LDSCRIPT)),)
 106         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
 107 endif
 108 ifeq ($(wildcard $(LDSCRIPT)),)
 109         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
 110 endif
 111 ifeq ($(wildcard $(LDSCRIPT)),)
 112         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
 113 endif
 114 ifeq ($(wildcard $(LDSCRIPT)),)
 115 $(error could not find linker script)
 116 endif
 117
 118 # Special flags for CPP when processing the linker script.
 119 # Pass the version down so we can handle backwards compatibility
 120 # on the fly.
 121 LDPPFLAGS += \
 122         -include $(srctree)/include/u-boot/u-boot.lds.h \
 123         -include $(objtree)/include/config.h \
 124         -DCPUDIR=$(CPUDIR) \
 125         $(shell $(LD) --version | \
 126           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 127
 128 MKIMAGEOUTPUT ?= /dev/null
 129
 130 quiet_cmd_mkimage = MKIMAGE $@
 131 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 132         $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
 133
 134 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
 135
 136 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 137
 138 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
 139         $(call if_changed,mkimage)
 140
 141 ifeq ($(CONFIG_SYS_SOC),"at91")
 142 MKIMAGEFLAGS_boot.bin = -T atmelimage
 143
 144 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
 145 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
 146
 147 boot.bin: $(obj)/../tools/atmel_pmecc_params
 148 endif
 149
 150 boot.bin: $(obj)/u-boot-spl.bin FORCE
 151         $(call if_changed,mkimage)
 152 else
 153 ifdef CONFIG_ARCH_ZYNQ
 154 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
 155 endif
 156 ifdef CONFIG_ARCH_ZYNQMP
 157 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
 158 endif
 159
 160 spl/boot.bin: $(obj)/u-boot-spl.bin FORCE
 161         $(call if_changed,mkimage)
 162 endif
 163
 164 ALL-y   += $(obj)/$(SPL_BIN).bin
 165
 166 ifdef CONFIG_SAMSUNG
 167 ALL-y   += $(obj)/$(BOARD)-spl.bin
 168 endif
 169
 170 ifdef CONFIG_ARCH_SOCFPGA
 171 ALL-y   += $(obj)/$(SPL_BIN).sfp
 172 endif
 173
 174 ifdef CONFIG_ARCH_SUNXI
 175 ALL-y   += $(obj)/sunxi-spl.bin
 176 endif
 177
 178 ifeq ($(CONFIG_SYS_SOC),"at91")
 179 ALL-y   += boot.bin
 180 endif
 181
 182 ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin
 183
 184 ALL-$(CONFIG_ARCH_ZYNQ)         += $(obj)/boot.bin
 185 ALL-$(CONFIG_ARCH_ZYNQMP)       += $(obj)/boot.bin
 186
 187 all:    $(ALL-y)
 188
 189 quiet_cmd_cat = CAT     $@
 190 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 191
 192 quiet_cmd_copy = COPY    $@
 193       cmd_copy = cp $< $@
 194
 195 ifeq ($(CONFIG_SPL_OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),yy)
 196 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
 197                 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
 198                 $(obj)/$(SPL_BIN).dtb FORCE
 199         $(call if_changed,cat)
 200
 201 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
 202         $(call if_changed,copy)
 203 else
 204 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
 205         $(call if_changed,copy)
 206 endif
 207
 208 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
 209 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
 210         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
 211         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
 212
 213 # Pass the original device tree file through fdtgrep twice. The first pass
 214 # removes any unwanted nodes (i.e. those which don't have the
 215 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
 216 # pass removes various unused properties from the remaining nodes.
 217 # The output is typically a much smaller device tree file.
 218 quiet_cmd_fdtgrep = FDTGREP $@
 219       cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
 220                 -n /chosen -O dtb | \
 221         $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
 222                 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
 223
 224 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
 225         $(call if_changed,fdtgrep)
 226
 227 pythonpath = PYTHONPATH=tools
 228
 229 quiet_cmd_dtocc = DTOC C  $@
 230 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
 231
 232 quiet_cmd_dtoch = DTOC H  $@
 233 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
 234
 235 quiet_cmd_plat = PLAT    $@
 236 cmd_plat = $(CC) $(c_flags) -c $< -o $@
 237
 238 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c include/generated/dt-structs.h
 239         $(call if_changed,plat)
 240
 241 PHONY += dts_dir
 242 dts_dir:
 243         $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
 244
 245 include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
 246         $(call if_changed,dtoch)
 247
 248 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
 249         $(call if_changed,dtocc)
 250
 251 dtoc: #$(objtree)/tools/_libfdt.so
 252
 253 ifdef CONFIG_SAMSUNG
 254 ifdef CONFIG_VAR_SIZE_SPL
 255 VAR_SIZE_PARAM = --vs
 256 else
 257 VAR_SIZE_PARAM =
 258 endif
 259 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 260         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 261         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 262         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 263 endif
 264
 265 quiet_cmd_objcopy = OBJCOPY $@
 266 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 267
 268 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
 269                 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec)
 270
 271 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
 272         $(call if_changed,objcopy)
 273
 274 OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec
 275 $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
 276         $(call if_changed,objcopy)
 277
 278 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 279 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 280 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 281 endif
 282
 283 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
 284 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
 285         $(call if_changed,mkimage)
 286
 287 quiet_cmd_mksunxiboot = MKSUNXI $@
 288 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
 289 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
 290         $(call if_changed,mksunxiboot)
 291
 292 # Rule to link u-boot-spl
 293 # May be overridden by arch/$(ARCH)/config.mk
 294 quiet_cmd_u-boot-spl ?= LD      $@
 295       cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 296                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
 297                        $(patsubst $(obj)/%,%,$(u-boot-spl-main))  \
 298                        $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
 299                        --end-group \
 300                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
 301
 302 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
 303                 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
 304         $(call if_changed,u-boot-spl)
 305
 306 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 307
 308 PHONY += $(u-boot-spl-dirs)
 309 $(u-boot-spl-dirs): $(u-boot-spl-platdata)
 310         $(Q)$(MAKE) $(build)=$@
 311
 312 quiet_cmd_cpp_lds = LDS     $@
 313 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 314                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
 315
 316 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 317         $(call if_changed_dep,cpp_lds)
 318
 319 # read all saved command lines
 320
 321 targets := $(wildcard $(sort $(targets)))
 322 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 323
 324 ifneq ($(cmd_files),)
 325   $(cmd_files): ;       # Do not try to update included dependency files
 326   include $(cmd_files)
 327 endif
 328
 329 PHONY += FORCE
 330 FORCE:
 331
 332 # Declare the contents of the .PHONY variable as phony.  We keep that
 333 # information in a variable so we can use it in if_changed and friends.
 334 .PHONY: $(PHONY)