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
  49 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  50
  51 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  52 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  53
  54 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
  55 libs-y += common/init/
  56 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
  57 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
  58 libs-y += drivers/
  59 libs-y += fs/
  60 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
  61 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
  62 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
  63
  64 head-y          := $(addprefix $(obj)/,$(head-y))
  65 libs-y          := $(addprefix $(obj)/,$(libs-y))
  66 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
  67
  68 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
  69
  70 # Add GCC lib
  71 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
  72 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
  73 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
  74 endif
  75
  76 u-boot-spl-init := $(head-y)
  77 u-boot-spl-main := $(libs-y)
  78
  79 # Linker Script
  80 ifdef CONFIG_SPL_LDSCRIPT
  81 # need to strip off double quotes
  82 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
  83 endif
  84
  85 ifeq ($(wildcard $(LDSCRIPT)),)
  86         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
  87 endif
  88 ifeq ($(wildcard $(LDSCRIPT)),)
  89         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
  90 endif
  91 ifeq ($(wildcard $(LDSCRIPT)),)
  92         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
  93 endif
  94 ifeq ($(wildcard $(LDSCRIPT)),)
  95 $(error could not find linker script)
  96 endif
  97
  98 # Special flags for CPP when processing the linker script.
  99 # Pass the version down so we can handle backwards compatibility
 100 # on the fly.
 101 LDPPFLAGS += \
 102         -include $(srctree)/include/u-boot/u-boot.lds.h \
 103         -include $(objtree)/include/config.h \
 104         -DCPUDIR=$(CPUDIR) \
 105         $(shell $(LD) --version | \
 106           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 107
 108 quiet_cmd_mkimage = MKIMAGE $@
 109 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 110         $(if $(KBUILD_VERBOSE:1=), >/dev/null)
 111
 112 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
 113
 114 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 115
 116 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
 117         $(call if_changed,mkimage)
 118
 119 MKIMAGEFLAGS_boot.bin = -T atmelimage
 120
 121 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
 122 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
 123
 124 boot.bin: $(obj)/../tools/atmel_pmecc_params
 125 endif
 126
 127 boot.bin: $(obj)/u-boot-spl.bin
 128         $(call if_changed,mkimage)
 129
 130 ALL-y   += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
 131
 132 ifdef CONFIG_SPL_OF_CONTROL
 133 ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-dtb.bin
 134 endif
 135
 136 ifdef CONFIG_SAMSUNG
 137 ALL-y   += $(obj)/$(BOARD)-spl.bin
 138 endif
 139
 140 ifdef CONFIG_ARCH_SOCFPGA
 141 ALL-y   += $(obj)/$(SPL_BIN)-dtb.sfp
 142 endif
 143
 144 ifdef CONFIG_SUNXI
 145 ALL-y   += $(obj)/sunxi-spl.bin
 146 endif
 147
 148 ifeq ($(CONFIG_SYS_SOC),"at91")
 149 ALL-y   += boot.bin
 150 endif
 151
 152 all:    $(ALL-y)
 153
 154 quiet_cmd_cat = CAT     $@
 155 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 156
 157 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN)-pad.bin \
 158                 $(obj)/$(SPL_BIN).dtb FORCE
 159         $(call if_changed,cat)
 160
 161 # Create a file that pads from the end of u-boot-spl.bin to bss_end
 162 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
 163         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
 164         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
 165
 166 # Pass the original device tree file through fdtgrep twice. The first pass
 167 # removes any unwanted nodes (i.e. those which don't have the
 168 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
 169 # pass removes various unused properties from the remaining nodes.
 170 # The output is typically a much smaller device tree file.
 171 quiet_cmd_fdtgrep = FDTGREP $@
 172       cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
 173                 -n /chosen -O dtb | \
 174         $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
 175                 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
 176
 177 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb
 178         $(call cmd,fdtgrep)
 179
 180 quiet_cmd_cpp_cfg = CFG     $@
 181 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 182         -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
 183
 184 $(obj)/$(SPL_BIN).cfg:  include/config.h
 185         $(call if_changed,cpp_cfg)
 186
 187 ifdef CONFIG_SAMSUNG
 188 ifdef CONFIG_VAR_SIZE_SPL
 189 VAR_SIZE_PARAM = --vs
 190 else
 191 VAR_SIZE_PARAM =
 192 endif
 193 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 194         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 195         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 196         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 197 endif
 198
 199 quiet_cmd_objcopy = OBJCOPY $@
 200 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 201
 202 OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
 203
 204 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
 205         $(call if_changed,objcopy)
 206
 207 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 208 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 209 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 210 endif
 211
 212 ifdef CONFIG_ARCH_SOCFPGA
 213 MKIMAGEFLAGS_$(SPL_BIN)-dtb.sfp = -T socfpgaimage
 214 $(obj)/$(SPL_BIN)-dtb.sfp: $(obj)/$(SPL_BIN)-dtb.bin FORCE
 215         $(call if_changed,mkimage)
 216 endif
 217
 218 ifdef CONFIG_SUNXI
 219 quiet_cmd_mksunxiboot = MKSUNXI $@
 220 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
 221 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin
 222         $(call if_changed,mksunxiboot)
 223 endif
 224
 225 quiet_cmd_u-boot-spl = LD      $@
 226       cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 227                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
 228                        $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
 229                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
 230
 231 $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
 232         $(call if_changed,u-boot-spl)
 233
 234 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 235
 236 PHONY += $(u-boot-spl-dirs)
 237 $(u-boot-spl-dirs):
 238         $(Q)$(MAKE) $(build)=$@
 239
 240 quiet_cmd_cpp_lds = LDS     $@
 241 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 242                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
 243
 244 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 245         $(call if_changed_dep,cpp_lds)
 246
 247 # read all saved command lines
 248
 249 targets := $(wildcard $(sort $(targets)))
 250 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 251
 252 ifneq ($(cmd_files),)
 253   $(cmd_files): ;       # Do not try to update included dependency files
 254   include $(cmd_files)
 255 endif
 256
 257 PHONY += FORCE
 258 FORCE:
 259
 260 # Declare the contents of the .PHONY variable as phony.  We keep that
 261 # information in a variable so we can use it in if_changed and friends.
 262 .PHONY: $(PHONY)