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-$(CONFIG_SPL_LED_SUPPORT) += drivers/led/ 68libs-$(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 155ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-dtb.bin 156 157ifdef CONFIG_SAMSUNG 158ALL-y += $(obj)/$(BOARD)-spl.bin 159endif 160 161ifdef CONFIG_SUNXI 162ALL-y += $(obj)/sunxi-spl.bin 163endif 164 165ifeq ($(CONFIG_SYS_SOC),"at91") 166ALL-y += boot.bin 167endif 168 169all: $(ALL-y) 170 171quiet_cmd_cat = CAT $@ 172cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 173 174$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN)-pad.bin \ 175 $(obj)/$(SPL_BIN).dtb FORCE 176 $(call if_changed,cat) 177 178# Create a file that pads from the end of u-boot-spl.bin to bss_end 179$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) 180 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ 181 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; 182 183# Pass the original device tree file through fdtgrep twice. The first pass 184# removes any unwanted nodes (i.e. those which don't have the 185# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second 186# pass removes various unused properties from the remaining nodes. 187# The output is typically a much smaller device tree file. 188quiet_cmd_fdtgrep = FDTGREP $@ 189 cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \ 190 -n /chosen -O dtb | \ 191 $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \ 192 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS))) 193 194$(obj)/$(SPL_BIN).dtb: dts/dt.dtb 195 $(call cmd,fdtgrep) 196 197quiet_cmd_cpp_cfg = CFG $@ 198cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 199 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 200 201$(obj)/$(SPL_BIN).cfg: include/config.h 202 $(call if_changed,cpp_cfg) 203 204ifdef CONFIG_SAMSUNG 205ifdef CONFIG_VAR_SIZE_SPL 206VAR_SIZE_PARAM = --vs 207else 208VAR_SIZE_PARAM = 209endif 210$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin 211 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ 212 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ 213 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ 214endif 215 216quiet_cmd_objcopy = OBJCOPY $@ 217cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 218 219OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary 220 221$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE 222 $(call if_changed,objcopy) 223 224LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) 225ifneq ($(CONFIG_SPL_TEXT_BASE),) 226LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) 227endif 228 229ifdef CONFIG_SUNXI 230quiet_cmd_mksunxiboot = MKSUNXI $@ 231cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@ 232$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin 233 $(call if_changed,mksunxiboot) 234endif 235 236quiet_cmd_u-boot-spl = LD $@ 237 cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ 238 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ 239 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \ 240 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) 241 242$(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE 243 $(call if_changed,u-boot-spl) 244 245$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; 246 247PHONY += $(u-boot-spl-dirs) 248$(u-boot-spl-dirs): 249 $(Q)$(MAKE) $(build)=$@ 250 251quiet_cmd_cpp_lds = LDS $@ 252cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 253 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 254 255$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE 256 $(call if_changed_dep,cpp_lds) 257 258# read all saved command lines 259 260targets := $(wildcard $(sort $(targets))) 261cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 262 263ifneq ($(cmd_files),) 264 $(cmd_files): ; # Do not try to update included dependency files 265 include $(cmd_files) 266endif 267 268PHONY += FORCE 269FORCE: 270 271# Declare the contents of the .PHONY variable as phony. We keep that 272# information in a variable so we can use it in if_changed and friends. 273.PHONY: $(PHONY) 274