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