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 63libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 64libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 65 66libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/ 67libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ 68libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/ 69libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/ 70libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/ 71libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/ 72libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/ 73libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/ 74libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/ 75libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/ 76libs-y += fs/ 77libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/ 78libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/ 79libs-$(CONFIG_SPL_MTD_SUPPORT) += drivers/mtd/ 80libs-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/ 81libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/ 82libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/ 83libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/ 84libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ 85libs-$(CONFIG_SPL_NET_SUPPORT) += net/ 86libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/ 87libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/ 88libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/ 89libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/ 90libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/ 91libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/ 92libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/ 93libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/ 94libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/ 95 96ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35)) 97libs-y += arch/$(ARCH)/imx-common/ 98endif 99 100libs-$(CONFIG_ARM) += arch/arm/cpu/ 101libs-$(CONFIG_PPC) += arch/powerpc/cpu/ 102 103head-y := $(addprefix $(obj)/,$(head-y)) 104libs-y := $(addprefix $(obj)/,$(libs-y)) 105u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) 106 107libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 108 109# Add GCC lib 110ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 111PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 112PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 113endif 114 115u-boot-spl-init := $(head-y) 116u-boot-spl-main := $(libs-y) 117 118# Linker Script 119ifdef CONFIG_SPL_LDSCRIPT 120# need to strip off double quotes 121LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) 122endif 123 124ifeq ($(wildcard $(LDSCRIPT)),) 125 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds 126endif 127ifeq ($(wildcard $(LDSCRIPT)),) 128 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds 129endif 130ifeq ($(wildcard $(LDSCRIPT)),) 131 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds 132endif 133ifeq ($(wildcard $(LDSCRIPT)),) 134$(error could not find linker script) 135endif 136 137# Special flags for CPP when processing the linker script. 138# Pass the version down so we can handle backwards compatibility 139# on the fly. 140LDPPFLAGS += \ 141 -include $(srctree)/include/u-boot/u-boot.lds.h \ 142 -include $(objtree)/include/config.h \ 143 -DCPUDIR=$(CPUDIR) \ 144 $(shell $(LD) --version | \ 145 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 146 147quiet_cmd_mkimage = MKIMAGE $@ 148cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 149 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 150 151MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) 152 153MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) 154 155MLO MLO.byteswap: $(obj)/u-boot-spl.bin 156 $(call if_changed,mkimage) 157 158MKIMAGEFLAGS_boot.bin = -T atmelimage 159 160ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) 161MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) 162 163boot.bin: $(obj)/../tools/atmel_pmecc_params 164endif 165 166boot.bin: $(obj)/u-boot-spl.bin 167 $(call if_changed,mkimage) 168 169ALL-y += $(obj)/$(SPL_BIN).bin 170 171ifdef CONFIG_SAMSUNG 172ALL-y += $(obj)/$(BOARD)-spl.bin 173endif 174 175ifdef CONFIG_SUNXI 176ifndef CONFIG_SPL_FEL 177ALL-y += $(obj)/sunxi-spl.bin 178endif 179endif 180 181ifeq ($(CONFIG_SYS_SOC),"at91") 182ALL-y += boot.bin 183endif 184 185all: $(ALL-y) 186 187ifdef CONFIG_SAMSUNG 188ifdef CONFIG_VAR_SIZE_SPL 189VAR_SIZE_PARAM = --vs 190else 191VAR_SIZE_PARAM = 192endif 193$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 194 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 195 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 196 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 197endif 198 199quiet_cmd_objcopy = OBJCOPY $@ 200cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 201 202OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary 203 204$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE 205 $(call if_changed,objcopy) 206 207LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 208ifneq ($(CONFIG_SPL_TEXT_BASE),) 209LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 210endif 211 212ifdef CONFIG_SUNXI 213quiet_cmd_mksunxiboot = MKSUNXI $@ 214cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@ 215$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin 216 $(call if_changed,mksunxiboot) 217endif 218 219quiet_cmd_u-boot-spl = LD $@ 220 cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 221 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 222 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \ 223 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) 224 225$(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 226 $(call if_changed,u-boot-spl) 227 228$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 229 230PHONY += $(u-boot-spl-dirs) 231$(u-boot-spl-dirs): 232 $(Q)$(MAKE) $(build)=$@ 233 234quiet_cmd_cpp_lds = LDS $@ 235cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 236 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 237 238$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 239 $(call if_changed_dep,cpp_lds) 240 241# read all saved command lines 242 243targets := $(wildcard $(sort $(targets))) 244cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 245 246ifneq ($(cmd_files),) 247 $(cmd_files): ; # Do not try to update included dependency files 248 include $(cmd_files) 249endif 250 251PHONY += FORCE 252FORCE: 253 254# Declare the contents of the .PHONY variable as phony. We keep that 255# information in a variable so we can use it in if_changed and friends. 256.PHONY: $(PHONY) 257