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