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 ($(CONFIG_TPL_BUILD),y) 33 SPL_BIN := u-boot-tpl 34 else 35 SPL_BIN := u-boot-spl 36 endif 37 38 ifdef CONFIG_SPL_BUILD 39 SPL_ := SPL_ 40 ifeq ($(CONFIG_TPL_BUILD),y) 41 SPL_TPL_ := TPL_ 42 else 43 SPL_TPL_ := SPL_ 44 endif 45 else 46 SPL_ := 47 SPL_TPL_ := 48 endif 49 50 include $(srctree)/config.mk 51 include $(srctree)/arch/$(ARCH)/Makefile 52 53 # Enable garbage collection of un-used sections for SPL 54 KBUILD_CFLAGS += -ffunction-sections -fdata-sections 55 LDFLAGS_FINAL += --gc-sections 56 57 # FIX ME 58 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 59 $(NOSTDINC_FLAGS) 60 c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 61 62 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 63 64 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 65 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 66 67 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/ 68 libs-y += common/init/ 69 70 # Special handling for a few options which support SPL/TPL 71 ifeq ($(CONFIG_TPL_BUILD),y) 72 libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/ 73 libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/ 74 else 75 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/ 76 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/ 77 endif 78 79 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/ 80 libs-y += drivers/ 81 libs-$(CONFIG_SPL_USB_GADGET_SUPPORT) += drivers/usb/dwc3/ 82 libs-y += dts/ 83 libs-y += fs/ 84 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ 85 libs-$(CONFIG_SPL_NET_SUPPORT) += net/ 86 87 head-y := $(addprefix $(obj)/,$(head-y)) 88 libs-y := $(addprefix $(obj)/,$(libs-y)) 89 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) 90 91 libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 92 93 # Add GCC lib 94 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 95 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 96 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 97 endif 98 99 u-boot-spl-init := $(head-y) 100 u-boot-spl-main := $(libs-y) 101 ifdef CONFIG_$(SPL_TPL_)OF_PLATDATA 102 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o 103 endif 104 105 # Linker Script 106 # First test whether there's a linker-script for the specific stage defined... 107 ifneq ($(CONFIG_$(SPL_TPL_)LDSCRIPT),) 108 # need to strip off double quotes 109 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(SPL_TPL_)LDSCRIPT:"%"=%)) 110 else 111 # ...then fall back to the generic SPL linker-script 112 ifneq ($(CONFIG_SPL_LDSCRIPT),) 113 # need to strip off double quotes 114 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) 115 endif 116 endif 117 118 ifeq ($(wildcard $(LDSCRIPT)),) 119 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds 120 endif 121 ifeq ($(wildcard $(LDSCRIPT)),) 122 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds 123 endif 124 ifeq ($(wildcard $(LDSCRIPT)),) 125 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds 126 endif 127 ifeq ($(wildcard $(LDSCRIPT)),) 128 $(error could not find linker script) 129 endif 130 131 # Special flags for CPP when processing the linker script. 132 # Pass the version down so we can handle backwards compatibility 133 # on the fly. 134 LDPPFLAGS += \ 135 -include $(srctree)/include/u-boot/u-boot.lds.h \ 136 -include $(objtree)/include/config.h \ 137 -DCPUDIR=$(CPUDIR) \ 138 $(shell $(LD) --version | \ 139 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 140 141 MKIMAGEOUTPUT ?= /dev/null 142 143 quiet_cmd_mkimage = MKIMAGE $@ 144 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 145 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 146 147 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 148 149 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 150 151 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE 152 $(call if_changed,mkimage) 153 154 ifeq ($(CONFIG_SYS_SOC),"at91") 155 MKIMAGEFLAGS_boot.bin = -T atmelimage 156 157 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 158 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 159 160 boot.bin: $(obj)/../tools/atmel_pmecc_params 161 endif 162 163 boot.bin: $(obj)/u-boot-spl.bin FORCE 164 $(call if_changed,mkimage) 165 else 166 ifdef CONFIG_ARCH_ZYNQ 167 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) 168 endif 169 ifdef CONFIG_ARCH_ZYNQMP 170 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \ 171 -n $(srctree)/$(CONFIG_PMUFW_INIT_FILE) 172 endif 173 174 spl/boot.bin: $(obj)/u-boot-spl.bin FORCE 175 $(call if_changed,mkimage) 176 endif 177 178 ALL-y += $(obj)/$(SPL_BIN).bin 179 180 ifdef CONFIG_SAMSUNG 181 ALL-y += $(obj)/$(BOARD)-spl.bin 182 endif 183 184 ifdef CONFIG_ARCH_SOCFPGA 185 ALL-y += $(obj)/$(SPL_BIN).sfp 186 endif 187 188 ifdef CONFIG_ARCH_SUNXI 189 ALL-y += $(obj)/sunxi-spl.bin 190 191 ifdef CONFIG_NAND_SUNXI 192 ALL-y += $(obj)/sunxi-spl-with-ecc.bin 193 endif 194 endif 195 196 ifeq ($(CONFIG_SYS_SOC),"at91") 197 ALL-y += boot.bin 198 endif 199 200 ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin 201 202 ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin 203 ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin 204 205 all: $(ALL-y) 206 207 quiet_cmd_cat = CAT $@ 208 cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 209 210 quiet_cmd_copy = COPY $@ 211 cmd_copy = cp $< $@ 212 213 ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y) 214 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb 215 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y) 216 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo 217 else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y) 218 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz 219 else 220 FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit 221 endif 222 223 224 ifeq ($(CONFIG_$(SPL_TPL_)OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_$(SPL_TPL_)OF_PLATDATA),yy) 225 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \ 226 $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \ 227 $(FINAL_DTB_CONTAINER) FORCE 228 $(call if_changed,cat) 229 230 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE 231 $(call if_changed,copy) 232 else 233 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE 234 $(call if_changed,copy) 235 endif 236 237 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end 238 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) 239 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ 240 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; 241 242 $(obj)/$(SPL_BIN).dtb: dts/dt-spl.dtb FORCE 243 $(call if_changed,copy) 244 245 pythonpath = PYTHONPATH=scripts/dtc/pylibfdt 246 247 quiet_cmd_dtocc = DTOC C $@ 248 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata 249 250 quiet_cmd_dtoch = DTOC H $@ 251 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct 252 253 quiet_cmd_plat = PLAT $@ 254 cmd_plat = $(CC) $(c_flags) -c $< -o $@ 255 256 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ 257 include/generated/dt-structs-gen.h 258 $(call if_changed,plat) 259 260 PHONY += dts_dir 261 dts_dir: 262 $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) 263 264 include/generated/dt-structs-gen.h: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 265 $(call if_changed,dtoch) 266 267 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir FORCE 268 $(call if_changed,dtocc) 269 270 ifdef CONFIG_SAMSUNG 271 ifdef CONFIG_VAR_SIZE_SPL 272 VAR_SIZE_PARAM = --vs 273 else 274 VAR_SIZE_PARAM = 275 endif 276 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 277 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 278 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 279 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 280 endif 281 282 quiet_cmd_objcopy = OBJCOPY $@ 283 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 284 285 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ 286 $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) 287 288 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE 289 $(call if_changed,objcopy) 290 291 OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec 292 $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE 293 $(call if_changed,objcopy) 294 295 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 296 297 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 298 LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker) 299 300 # First try the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) 301 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),) 302 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE) 303 else 304 # And then fall back to just testing for SPL_TEXT_BASE, even if in TPL mode 305 ifneq ($(CONFIG_SPL_TEXT_BASE),) 306 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 307 endif 308 endif 309 310 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage 311 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE 312 $(call if_changed,mkimage) 313 314 quiet_cmd_mksunxiboot = MKSUNXI $@ 315 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \ 316 --default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@ 317 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE 318 $(call if_changed,mksunxiboot) 319 320 quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@ 321 cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \ 322 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \ 323 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \ 324 -o $(CONFIG_SYS_NAND_OOBSIZE) \ 325 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \ 326 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \ 327 -s -b $< $@ 328 $(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin 329 $(call if_changed,sunxi_spl_image_builder) 330 331 # Rule to link u-boot-spl 332 # May be overridden by arch/$(ARCH)/config.mk 333 quiet_cmd_u-boot-spl ?= LD $@ 334 cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 335 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 336 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ 337 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ 338 --end-group \ 339 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) 340 341 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ 342 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 343 $(call if_changed,u-boot-spl) 344 345 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 346 347 PHONY += $(u-boot-spl-dirs) 348 $(u-boot-spl-dirs): $(u-boot-spl-platdata) 349 $(Q)$(MAKE) $(build)=$@ 350 351 quiet_cmd_cpp_lds = LDS $@ 352 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 353 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 354 355 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 356 $(call if_changed_dep,cpp_lds) 357 358 # read all saved command lines 359 360 targets := $(wildcard $(sort $(targets))) 361 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 362 363 ifneq ($(cmd_files),) 364 $(cmd_files): ; # Do not try to update included dependency files 365 include $(cmd_files) 366 endif 367 368 PHONY += FORCE 369 FORCE: 370 371 PHONY += dtbs 372 dtbs: 373 $(Q)$(MAKE) $(build)=dts dtbs 374 375 # Declare the contents of the .PHONY variable as phony. We keep that 376 # information in a variable so we can use it in if_changed and friends. 377 .PHONY: $(PHONY) 378 379 SHRUNK_ARCH_DTB = $(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST))) 380 .SECONDEXPANSION: 381 $(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) 382 $(call if_changed,fdtgrep) 383 384 MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 385 -n "Multi DTB fit image for $(SPL_BIN)" -E \ 386 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB)) 387 388 $(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE 389 $(call if_changed,mkimage) 390 391 $(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit 392 @gzip -kf9 $< > $@ 393 394 $(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit 395 @lzop -f9 $< > $@ 396