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 17src := $(obj) 18 19# Create output directory if not already present 20_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj)) 21 22include $(srctree)/scripts/Kbuild.include 23 24CONFIG_SPL_BUILD := y 25export CONFIG_SPL_BUILD 26 27KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD 28ifeq ($(CONFIG_TPL_BUILD),y) 29KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD 30endif 31 32ifeq ($(CONFIG_TPL_BUILD),y) 33export CONFIG_TPL_BUILD 34SPL_BIN := u-boot-tpl 35else 36SPL_BIN := u-boot-spl 37endif 38 39include include/config.mk 40 41ifeq ($(CONFIG_TPL_BUILD),y) 42 -include include/tpl-autoconf.mk 43else 44 -include include/spl-autoconf.mk 45endif 46 47include $(srctree)/config.mk 48 49# Enable garbage collection of un-used sections for SPL 50KBUILD_CFLAGS += -ffunction-sections -fdata-sections 51LDFLAGS_FINAL += --gc-sections 52 53# FIX ME 54cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 55 $(NOSTDINC_FLAGS) 56c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 57 58# Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL) 59quiet_cmd_autoconf = GEN $@ 60 cmd_autoconf = \ 61 $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \ 62 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \ 63 rm $@.tmp 64 65include/tpl-autoconf.mk: include/config.h 66 $(call cmd,autoconf) 67 68include/spl-autoconf.mk: include/config.h 69 $(call cmd,autoconf) 70 71HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 72 73ifdef CONFIG_SPL_START_S_PATH 74START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%) 75else 76START_PATH := $(CPUDIR) 77endif 78 79head-y := $(START_PATH)/start.o 80head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o 81head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o 82head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o 83 84libs-y += arch/$(ARCH)/lib/ 85 86libs-y += $(CPUDIR)/ 87 88ifdef SOC 89libs-y += $(CPUDIR)/$(SOC)/ 90endif 91libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 92libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 93 94libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/ 95libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ 96libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/ 97libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/ 98libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/ 99libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/ 100libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/ 101libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/ 102libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/ 103libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/ 104libs-y += fs/ 105libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/ 106libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/ 107libs-$(CONFIG_SPL_MTD_SUPPORT) += drivers/mtd/ 108libs-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/ 109libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/ 110libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/ 111libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/ 112libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ 113libs-$(CONFIG_SPL_NET_SUPPORT) += net/ 114libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/ 115libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/ 116libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/ 117libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/ 118libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/ 119libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/ 120libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/ 121libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/ 122libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/ 123 124ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35)) 125libs-y += arch/$(ARCH)/imx-common/ 126endif 127 128libs-$(CONFIG_ARM) += arch/arm/cpu/ 129libs-$(CONFIG_PPC) += arch/powerpc/cpu/ 130 131head-y := $(addprefix $(obj)/,$(head-y)) 132libs-y := $(addprefix $(obj)/,$(libs-y)) 133u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) 134 135libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 136 137# Add GCC lib 138ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 139PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 140PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 141endif 142 143u-boot-spl-init := $(head-y) 144u-boot-spl-main := $(libs-y) 145 146# Linker Script 147ifdef CONFIG_SPL_LDSCRIPT 148# need to strip off double quotes 149LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) 150endif 151 152ifeq ($(wildcard $(LDSCRIPT)),) 153 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds 154endif 155ifeq ($(wildcard $(LDSCRIPT)),) 156 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds 157endif 158ifeq ($(wildcard $(LDSCRIPT)),) 159 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds 160endif 161ifeq ($(wildcard $(LDSCRIPT)),) 162$(error could not find linker script) 163endif 164 165# Special flags for CPP when processing the linker script. 166# Pass the version down so we can handle backwards compatibility 167# on the fly. 168LDPPFLAGS += \ 169 -include $(srctree)/include/u-boot/u-boot.lds.h \ 170 -include $(objtree)/include/config.h \ 171 -DCPUDIR=$(CPUDIR) \ 172 $(shell $(LD) --version | \ 173 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 174 175quiet_cmd_mkimage = MKIMAGE $@ 176cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 177 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 178 179MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 180 181MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 182 183MLO MLO.byteswap: $(obj)/u-boot-spl.bin 184 $(call if_changed,mkimage) 185 186MKIMAGEFLAGS_boot.bin = -T atmelimage 187 188ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 189MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 190 191boot.bin: $(obj)/../tools/atmel_pmecc_params 192endif 193 194boot.bin: $(obj)/u-boot-spl.bin 195 $(call if_changed,mkimage) 196 197ALL-y += $(obj)/$(SPL_BIN).bin 198 199ifdef CONFIG_SAMSUNG 200ALL-y += $(obj)/$(BOARD)-spl.bin 201endif 202 203ifdef CONFIG_SUNXI 204ifndef CONFIG_SPL_FEL 205ALL-y += $(obj)/sunxi-spl.bin 206endif 207endif 208 209all: $(ALL-y) 210 211ifdef CONFIG_SAMSUNG 212ifdef CONFIG_VAR_SIZE_SPL 213VAR_SIZE_PARAM = --vs 214else 215VAR_SIZE_PARAM = 216endif 217$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 218 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 219 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 220 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 221endif 222 223quiet_cmd_objcopy = OBJCOPY $@ 224cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 225 226OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary 227 228$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE 229 $(call if_changed,objcopy) 230 231LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 232ifneq ($(CONFIG_SPL_TEXT_BASE),) 233LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 234endif 235 236ifdef CONFIG_SUNXI 237quiet_cmd_mksunxiboot = MKSUNXI $@ 238cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@ 239$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin 240 $(call if_changed,mksunxiboot) 241endif 242 243quiet_cmd_u-boot-spl = LD $@ 244 cmd_u-boot-spl = cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 245 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 246 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \ 247 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN) 248 249$(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds 250 $(call cmd,u-boot-spl) 251 252$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 253 254PHONY += $(u-boot-spl-dirs) 255$(u-boot-spl-dirs): 256 $(Q)$(MAKE) $(build)=$@ 257 258quiet_cmd_cpp_lds = LDS $@ 259cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 260 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 261 262$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 263 $(call if_changed_dep,cpp_lds) 264 265# read all saved command lines 266 267targets := $(wildcard $(sort $(targets))) 268cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 269 270ifneq ($(cmd_files),) 271 $(cmd_files): ; # Do not try to update included dependency files 272 include $(cmd_files) 273endif 274 275PHONY += FORCE 276FORCE: 277 278# Declare the contents of the .PHONY variable as phony. We keep that 279# information in a variable so we can use it in if_changed and friends. 280.PHONY: $(PHONY) 281