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