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