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