scripts/Makefile.spl

   1 #
   2 # (C) Copyright 2000-2011
   3 # Wolfgang Denk, DENX Software Engineering, [email protected].
   4 #
   5 # (C) Copyright 2011
   6 # Daniel Schwierzeck, [email protected].
   7 #
   8 # (C) Copyright 2011
   9 # Texas Instruments Incorporated - http://www.ti.com/
  10 # Aneesh V <[email protected]>
  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_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   += $(obj)/sunxi-spl.bin
 182 endif
 183
 184 ifeq ($(CONFIG_SYS_SOC),"at91")
 185 ALL-y   += boot.bin
 186 endif
 187
 188 ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin
 189
 190 ALL-$(CONFIG_ARCH_ZYNQ)         += $(obj)/boot.bin
 191 ALL-$(CONFIG_ARCH_ZYNQMP)       += $(obj)/boot.bin
 192
 193 all:    $(ALL-y)
 194
 195 quiet_cmd_cat = CAT     $@
 196 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 197
 198 quiet_cmd_copy = COPY    $@
 199       cmd_copy = cp $< $@
 200
 201 ifeq ($(CONFIG_SPL_OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),yy)
 202 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
 203                 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
 204                 $(obj)/$(SPL_BIN).dtb FORCE
 205         $(call if_changed,cat)
 206
 207 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
 208         $(call if_changed,copy)
 209 else
 210 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
 211         $(call if_changed,copy)
 212 endif
 213
 214 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
 215 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
 216         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
 217         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
 218
 219 # Pass the original device tree file through fdtgrep twice. The first pass
 220 # removes any unwanted nodes (i.e. those which don't have the
 221 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
 222 # pass removes various unused properties from the remaining nodes.
 223 # The output is typically a much smaller device tree file.
 224 ifeq ($(CONFIG_TPL_BUILD),y)
 225 fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl
 226 else
 227 fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl
 228 endif
 229 quiet_cmd_fdtgrep = FDTGREP $@
 230       cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \
 231                 -n /chosen -O dtb | \
 232         $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
 233                 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
 234
 235 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
 236         $(call if_changed,fdtgrep)
 237
 238 pythonpath = PYTHONPATH=tools
 239
 240 quiet_cmd_dtocc = DTOC C  $@
 241 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
 242
 243 quiet_cmd_dtoch = DTOC H  $@
 244 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
 245
 246 quiet_cmd_plat = PLAT    $@
 247 cmd_plat = $(CC) $(c_flags) -c $< -o $@
 248
 249 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c include/generated/dt-structs.h
 250         $(call if_changed,plat)
 251
 252 PHONY += dts_dir
 253 dts_dir:
 254         $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
 255
 256 include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
 257         $(call if_changed,dtoch)
 258
 259 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
 260         $(call if_changed,dtocc)
 261
 262 dtoc: #$(objtree)/tools/_libfdt.so
 263
 264 ifdef CONFIG_SAMSUNG
 265 ifdef CONFIG_VAR_SIZE_SPL
 266 VAR_SIZE_PARAM = --vs
 267 else
 268 VAR_SIZE_PARAM =
 269 endif
 270 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 271         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 272         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 273         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 274 endif
 275
 276 quiet_cmd_objcopy = OBJCOPY $@
 277 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 278
 279 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
 280                 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec)
 281
 282 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
 283         $(call if_changed,objcopy)
 284
 285 OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec
 286 $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
 287         $(call if_changed,objcopy)
 288
 289 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 290 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 291 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 292 endif
 293
 294 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
 295 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
 296         $(call if_changed,mkimage)
 297
 298 quiet_cmd_mksunxiboot = MKSUNXI $@
 299 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
 300 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
 301         $(call if_changed,mksunxiboot)
 302
 303 # Rule to link u-boot-spl
 304 # May be overridden by arch/$(ARCH)/config.mk
 305 quiet_cmd_u-boot-spl ?= LD      $@
 306       cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 307                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
 308                        $(patsubst $(obj)/%,%,$(u-boot-spl-main))  \
 309                        $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
 310                        --end-group \
 311                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
 312
 313 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
 314                 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
 315         $(call if_changed,u-boot-spl)
 316
 317 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 318
 319 PHONY += $(u-boot-spl-dirs)
 320 $(u-boot-spl-dirs): $(u-boot-spl-platdata)
 321         $(Q)$(MAKE) $(build)=$@
 322
 323 quiet_cmd_cpp_lds = LDS     $@
 324 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 325                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
 326
 327 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 328         $(call if_changed_dep,cpp_lds)
 329
 330 # read all saved command lines
 331
 332 targets := $(wildcard $(sort $(targets)))
 333 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 334
 335 ifneq ($(cmd_files),)
 336   $(cmd_files): ;       # Do not try to update included dependency files
 337   include $(cmd_files)
 338 endif
 339
 340 PHONY += FORCE
 341 FORCE:
 342
 343 # Declare the contents of the .PHONY variable as phony.  We keep that
 344 # information in a variable so we can use it in if_changed and friends.
 345 .PHONY: $(PHONY)