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 24-include include/config/auto.conf 25-include $(obj)/include/autoconf.mk 26 27KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD 28ifeq ($(CONFIG_TPL_BUILD),y) 29KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD 30endif 31 32ifeq ($(CONFIG_TPL_BUILD),y) 33SPL_BIN := u-boot-tpl 34else 35SPL_BIN := u-boot-spl 36endif 37 38include $(srctree)/config.mk 39include $(srctree)/arch/$(ARCH)/Makefile 40 41# Enable garbage collection of un-used sections for SPL 42KBUILD_CFLAGS += -ffunction-sections -fdata-sections 43LDFLAGS_FINAL += --gc-sections 44 45# FIX ME 46cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 47 $(NOSTDINC_FLAGS) 48 49HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 50 51libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 52libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 53 54libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/ 55libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ 56libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/ 57libs-$(CONFIG_SPL_DM) += drivers/core/ 58libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/ 59libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/ 60libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/ 61libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/ 62libs-$(CONFIG_SYS_MVEBU_DDR_A38X) += drivers/ddr/marvell/a38x/ 63libs-$(CONFIG_SYS_MVEBU_DDR_AXP) += drivers/ddr/marvell/axp/ 64libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/ 65libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/ 66libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/ 67libs-y += fs/ 68libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/ 69libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/ 70libs-$(CONFIG_SPL_MTD_SUPPORT) += drivers/mtd/ 71libs-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/ 72libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/ 73libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/ 74libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/ 75libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ 76libs-$(CONFIG_SPL_NET_SUPPORT) += net/ 77libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/ 78libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/ 79libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/ 80libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/ 81libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/ 82libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/ 83libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/ 84libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/ 85libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/ 86 87head-y := $(addprefix $(obj)/,$(head-y)) 88libs-y := $(addprefix $(obj)/,$(libs-y)) 89u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) 90 91libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 92 93# Add GCC lib 94ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 95PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 96PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 97endif 98 99u-boot-spl-init := $(head-y) 100u-boot-spl-main := $(libs-y) 101 102# Linker Script 103ifdef CONFIG_SPL_LDSCRIPT 104# need to strip off double quotes 105LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) 106endif 107 108ifeq ($(wildcard $(LDSCRIPT)),) 109 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds 110endif 111ifeq ($(wildcard $(LDSCRIPT)),) 112 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds 113endif 114ifeq ($(wildcard $(LDSCRIPT)),) 115 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds 116endif 117ifeq ($(wildcard $(LDSCRIPT)),) 118$(error could not find linker script) 119endif 120 121# Special flags for CPP when processing the linker script. 122# Pass the version down so we can handle backwards compatibility 123# on the fly. 124LDPPFLAGS += \ 125 -include $(srctree)/include/u-boot/u-boot.lds.h \ 126 -include $(objtree)/include/config.h \ 127 -DCPUDIR=$(CPUDIR) \ 128 $(shell $(LD) --version | \ 129 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 130 131quiet_cmd_mkimage = MKIMAGE $@ 132cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 133 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 134 135MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 136 137MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 138 139MLO MLO.byteswap: $(obj)/u-boot-spl.bin 140 $(call if_changed,mkimage) 141 142MKIMAGEFLAGS_boot.bin = -T atmelimage 143 144ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 145MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 146 147boot.bin: $(obj)/../tools/atmel_pmecc_params 148endif 149 150boot.bin: $(obj)/u-boot-spl.bin 151 $(call if_changed,mkimage) 152 153ALL-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg 154 155ifdef CONFIG_SAMSUNG 156ALL-y += $(obj)/$(BOARD)-spl.bin 157endif 158 159ifdef CONFIG_SUNXI 160ALL-y += $(obj)/sunxi-spl.bin 161endif 162 163ifeq ($(CONFIG_SYS_SOC),"at91") 164ALL-y += boot.bin 165endif 166 167all: $(ALL-y) 168 169quiet_cmd_cpp_cfg = CFG $@ 170cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 171 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 172 173$(obj)/$(SPL_BIN).cfg: include/config.h 174 $(call if_changed,cpp_cfg) 175 176ifdef CONFIG_SAMSUNG 177ifdef CONFIG_VAR_SIZE_SPL 178VAR_SIZE_PARAM = --vs 179else 180VAR_SIZE_PARAM = 181endif 182$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 183 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 184 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 185 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 186endif 187 188quiet_cmd_objcopy = OBJCOPY $@ 189cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 190 191OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary 192 193$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE 194 $(call if_changed,objcopy) 195 196LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 197ifneq ($(CONFIG_SPL_TEXT_BASE),) 198LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 199endif 200 201ifdef CONFIG_SUNXI 202quiet_cmd_mksunxiboot = MKSUNXI $@ 203cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@ 204$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin 205 $(call if_changed,mksunxiboot) 206endif 207 208quiet_cmd_u-boot-spl = LD $@ 209 cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 210 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 211 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \ 212 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) 213 214$(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 215 $(call if_changed,u-boot-spl) 216 217$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 218 219PHONY += $(u-boot-spl-dirs) 220$(u-boot-spl-dirs): 221 $(Q)$(MAKE) $(build)=$@ 222 223quiet_cmd_cpp_lds = LDS $@ 224cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 225 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 226 227$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 228 $(call if_changed_dep,cpp_lds) 229 230# read all saved command lines 231 232targets := $(wildcard $(sort $(targets))) 233cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 234 235ifneq ($(cmd_files),) 236 $(cmd_files): ; # Do not try to update included dependency files 237 include $(cmd_files) 238endif 239 240PHONY += FORCE 241FORCE: 242 243# Declare the contents of the .PHONY variable as phony. We keep that 244# information in a variable so we can use it in if_changed and friends. 245.PHONY: $(PHONY) 246