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