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 include $(srctree)/config.mk
  39 include $(srctree)/arch/$(ARCH)/Makefile
  40
  41 # Enable garbage collection of un-used sections for SPL
  42 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
  43 LDFLAGS_FINAL += --gc-sections
  44
  45 # FIX ME
  46 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  47                                                         $(NOSTDINC_FLAGS)
  48 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
  49
  50 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  51
  52 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  53 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  54
  55 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
  56 libs-y += common/init/
  57
  58 # Special handling for a few options which support SPL/TPL
  59 ifeq ($(CONFIG_TPL_BUILD),y)
  60 libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/
  61 libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
  62 else
  63 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/
  64 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
  65 endif
  66
  67 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
  68 libs-y += drivers/
  69 libs-$(CONFIG_SPL_DFU_SUPPORT) += drivers/dfu/
  70 libs-$(CONFIG_SPL_DFU_SUPPORT) += drivers/usb/gadget/
  71 libs-$(CONFIG_SPL_DFU_SUPPORT) += drivers/usb/gadget/udc/
  72 libs-$(CONFIG_SPL_DFU_SUPPORT) += drivers/usb/dwc3/
  73 libs-y += dts/
  74 libs-y += fs/
  75 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
  76 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
  77
  78 head-y          := $(addprefix $(obj)/,$(head-y))
  79 libs-y          := $(addprefix $(obj)/,$(libs-y))
  80 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
  81
  82 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
  83
  84 # Add GCC lib
  85 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
  86 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
  87 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
  88 endif
  89
  90 u-boot-spl-init := $(head-y)
  91 u-boot-spl-main := $(libs-y)
  92 ifdef CONFIG_SPL_OF_PLATDATA
  93 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
  94 endif
  95
  96 # Linker Script
  97 ifdef CONFIG_SPL_LDSCRIPT
  98 # need to strip off double quotes
  99 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 100 endif
 101
 102 ifeq ($(wildcard $(LDSCRIPT)),)
 103         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
 104 endif
 105 ifeq ($(wildcard $(LDSCRIPT)),)
 106         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
 107 endif
 108 ifeq ($(wildcard $(LDSCRIPT)),)
 109         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
 110 endif
 111 ifeq ($(wildcard $(LDSCRIPT)),)
 112 $(error could not find linker script)
 113 endif
 114
 115 # Special flags for CPP when processing the linker script.
 116 # Pass the version down so we can handle backwards compatibility
 117 # on the fly.
 118 LDPPFLAGS += \
 119         -include $(srctree)/include/u-boot/u-boot.lds.h \
 120         -include $(objtree)/include/config.h \
 121         -DCPUDIR=$(CPUDIR) \
 122         $(shell $(LD) --version | \
 123           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 124
 125 quiet_cmd_mkimage = MKIMAGE $@
 126 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 127         $(if $(KBUILD_VERBOSE:1=), >/dev/null)
 128
 129 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
 130
 131 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 132
 133 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
 134         $(call if_changed,mkimage)
 135
 136 ifeq ($(CONFIG_SYS_SOC),"at91")
 137 MKIMAGEFLAGS_boot.bin = -T atmelimage
 138
 139 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
 140 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
 141
 142 boot.bin: $(obj)/../tools/atmel_pmecc_params
 143 endif
 144
 145 boot.bin: $(obj)/u-boot-spl.bin FORCE
 146         $(call if_changed,mkimage)
 147 else
 148 ifdef CONFIG_ARCH_ZYNQ
 149 MKIMAGEFLAGS_boot.bin = -T zynqimage
 150 endif
 151 ifdef CONFIG_ARCH_ZYNQMP
 152 MKIMAGEFLAGS_boot.bin = -T zynqmpimage
 153 endif
 154
 155 spl/boot.bin: $(obj)/u-boot-spl.bin FORCE
 156         $(call if_changed,mkimage)
 157 endif
 158
 159 ALL-y   += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
 160
 161 ifdef CONFIG_SAMSUNG
 162 ALL-y   += $(obj)/$(BOARD)-spl.bin
 163 endif
 164
 165 ifdef CONFIG_ARCH_SOCFPGA
 166 ALL-y   += $(obj)/$(SPL_BIN).sfp
 167 endif
 168
 169 ifdef CONFIG_SUNXI
 170 ALL-y   += $(obj)/sunxi-spl.bin
 171 endif
 172
 173 ifeq ($(CONFIG_SYS_SOC),"at91")
 174 ALL-y   += boot.bin
 175 endif
 176
 177 ALL-$(CONFIG_ARCH_ZYNQ)         += $(obj)/boot.bin
 178 ALL-$(CONFIG_ARCH_ZYNQMP)       += $(obj)/boot.bin
 179
 180 all:    $(ALL-y)
 181
 182 quiet_cmd_cat = CAT     $@
 183 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 184
 185 quiet_cmd_copy = COPY    $@
 186       cmd_copy = cp $< $@
 187
 188 ifeq ($(CONFIG_SPL_OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),yy)
 189 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin $(obj)/$(SPL_BIN)-pad.bin \
 190                 $(obj)/$(SPL_BIN).dtb FORCE
 191         $(call if_changed,cat)
 192
 193 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
 194         $(call if_changed,copy)
 195 else
 196 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
 197         $(call if_changed,copy)
 198 endif
 199
 200 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
 201 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
 202         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
 203         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
 204
 205 # Pass the original device tree file through fdtgrep twice. The first pass
 206 # removes any unwanted nodes (i.e. those which don't have the
 207 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
 208 # pass removes various unused properties from the remaining nodes.
 209 # The output is typically a much smaller device tree file.
 210 quiet_cmd_fdtgrep = FDTGREP $@
 211       cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
 212                 -n /chosen -O dtb | \
 213         $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
 214                 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
 215
 216 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
 217         $(call if_changed,fdtgrep)
 218
 219 quiet_cmd_cpp_cfg = CFG     $@
 220 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 221         -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
 222
 223 # If .u-boot.cfg.d is still present, then either:
 224 # a) The previous build used a Makefile that used if_changed rather than
 225 #    if_changed_dep when building u-boot.cfg, and hence any later builds will
 226 #    be unaware of the dependencies for u-boot.cfg. In this case, we must
 227 #    delete u-boot.cfg to force it and .u-boot.cfg.cmd to be rebuilt the
 228 #    correct way.
 229 # b) The previous build failed or was interrupted while building u-boot.cfg,
 230 #    so deleting u-boot.cfg isn't going to cause any additional work.
 231 ifneq ($(wildcard $(obj)/.$(SPL_BIN).d),)
 232   unused := $(shell rm -f $(obj)/$(SPL_BIN).cfg)
 233 endif
 234 $(obj)/$(SPL_BIN).cfg:  include/config.h FORCE
 235         $(call if_changed_dep,cpp_cfg)
 236
 237 pythonpath = PYTHONPATH=tools
 238
 239 quiet_cmd_dtocc = DTOC C  $@
 240 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
 241
 242 quiet_cmd_dtoch = DTOC H  $@
 243 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
 244
 245 quiet_cmd_plat = PLAT    $@
 246 cmd_plat = $(CC) $(c_flags) -c $< -o $@
 247
 248 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c include/generated/dt-structs.h
 249         $(call if_changed,plat)
 250
 251 PHONY += dts_dir
 252 dts_dir:
 253         $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
 254
 255 include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
 256         $(call if_changed,dtoch)
 257
 258 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
 259         $(call if_changed,dtocc)
 260
 261 dtoc: #$(objtree)/tools/_libfdt.so
 262
 263 ifdef CONFIG_SAMSUNG
 264 ifdef CONFIG_VAR_SIZE_SPL
 265 VAR_SIZE_PARAM = --vs
 266 else
 267 VAR_SIZE_PARAM =
 268 endif
 269 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 270         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 271         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 272         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 273 endif
 274
 275 quiet_cmd_objcopy = OBJCOPY $@
 276 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 277
 278 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary
 279
 280 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
 281         $(call if_changed,objcopy)
 282
 283 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 284 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 285 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 286 endif
 287
 288 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
 289 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
 290         $(call if_changed,mkimage)
 291
 292 quiet_cmd_mksunxiboot = MKSUNXI $@
 293 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
 294 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
 295         $(call if_changed,mksunxiboot)
 296
 297 # Rule to link u-boot-spl
 298 # May be overridden by arch/$(ARCH)/config.mk
 299 quiet_cmd_u-boot-spl ?= LD      $@
 300       cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 301                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
 302                        $(patsubst $(obj)/%,%,$(u-boot-spl-main))  \
 303                        $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
 304                        --end-group \
 305                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
 306
 307 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
 308                 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
 309         $(call if_changed,u-boot-spl)
 310
 311 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 312
 313 PHONY += $(u-boot-spl-dirs)
 314 $(u-boot-spl-dirs): $(u-boot-spl-platdata)
 315         $(Q)$(MAKE) $(build)=$@
 316
 317 quiet_cmd_cpp_lds = LDS     $@
 318 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 319                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
 320
 321 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 322         $(call if_changed_dep,cpp_lds)
 323
 324 # read all saved command lines
 325
 326 targets := $(wildcard $(sort $(targets)))
 327 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 328
 329 ifneq ($(cmd_files),)
 330   $(cmd_files): ;       # Do not try to update included dependency files
 331   include $(cmd_files)
 332 endif
 333
 334 PHONY += FORCE
 335 FORCE:
 336
 337 # Declare the contents of the .PHONY variable as phony.  We keep that
 338 # information in a variable so we can use it in if_changed and friends.
 339 .PHONY: $(PHONY)