2 # (C) Copyright 2000-2011
3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 # Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
9 # Texas Instruments Incorporated - http://www.ti.com/
10 # Aneesh V <aneesh@ti.com>
12 # SPDX-License-Identifier: GPL-2.0+
14 # Based on top-level Makefile.
19 # Create output directory if not already present
20 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
22 include $(srctree)/scripts/Kbuild.include
24 -include include/config/auto.conf
25 -include $(obj)/include/autoconf.mk
27 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
28 ifeq ($(CONFIG_TPL_BUILD),y)
29 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
32 ifeq ($(CONFIG_TPL_BUILD),y)
38 include $(srctree)/config.mk
39 include $(srctree)/arch/$(ARCH)/Makefile
41 # Enable garbage collection of un-used sections for SPL
42 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
43 LDFLAGS_FINAL += --gc-sections
46 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
49 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
51 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
52 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
54 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
55 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
56 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
57 libs-$(CONFIG_SPL_CLK_SUPPORT) += drivers/clk/
58 libs-$(CONFIG_SPL_DM) += drivers/core/
59 libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
60 libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
61 libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
62 libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
63 libs-$(CONFIG_SYS_MVEBU_DDR_A38X) += drivers/ddr/marvell/a38x/
64 libs-$(CONFIG_SYS_MVEBU_DDR_AXP) += drivers/ddr/marvell/axp/
65 libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
66 libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
67 libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
69 libs-$(CONFIG_SPL_LED_SUPPORT) += drivers/led/
70 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
71 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/
72 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/regulator/
73 libs-$(CONFIG_SPL_MTD_SUPPORT) += drivers/mtd/
74 libs-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/
75 libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
76 libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
77 libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
78 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
79 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
80 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
81 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
82 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
83 libs-$(CONFIG_SPL_RAM_SUPPORT) += drivers/ram/
84 libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
85 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
86 libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
87 libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
88 libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
89 libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
91 head-y := $(addprefix $(obj)/,$(head-y))
92 libs-y := $(addprefix $(obj)/,$(libs-y))
93 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
95 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
98 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
99 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
100 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
103 u-boot-spl-init := $(head-y)
104 u-boot-spl-main := $(libs-y)
107 ifdef CONFIG_SPL_LDSCRIPT
108 # need to strip off double quotes
109 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
112 ifeq ($(wildcard $(LDSCRIPT)),)
113 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
115 ifeq ($(wildcard $(LDSCRIPT)),)
116 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
118 ifeq ($(wildcard $(LDSCRIPT)),)
119 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
121 ifeq ($(wildcard $(LDSCRIPT)),)
122 $(error could not find linker script)
125 # Special flags for CPP when processing the linker script.
126 # Pass the version down so we can handle backwards compatibility
129 -include $(srctree)/include/u-boot/u-boot.lds.h \
130 -include $(objtree)/include/config.h \
132 $(shell $(LD) --version | \
133 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
135 quiet_cmd_mkimage = MKIMAGE $@
136 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
137 $(if $(KBUILD_VERBOSE:1=), >/dev/null)
139 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
141 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
143 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
144 $(call if_changed,mkimage)
146 MKIMAGEFLAGS_boot.bin = -T atmelimage
148 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
149 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
151 boot.bin: $(obj)/../tools/atmel_pmecc_params
154 boot.bin: $(obj)/u-boot-spl.bin
155 $(call if_changed,mkimage)
157 ALL-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
159 ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-dtb.bin
162 ALL-y += $(obj)/$(BOARD)-spl.bin
166 ALL-y += $(obj)/sunxi-spl.bin
169 ifeq ($(CONFIG_SYS_SOC),"at91")
175 quiet_cmd_cat = CAT $@
176 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
178 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN)-pad.bin \
179 $(obj)/$(SPL_BIN).dtb FORCE
180 $(call if_changed,cat)
182 # Create a file that pads from the end of u-boot-spl.bin to bss_end
183 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
184 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
185 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
187 # Pass the original device tree file through fdtgrep twice. The first pass
188 # removes any unwanted nodes (i.e. those which don't have the
189 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
190 # pass removes various unused properties from the remaining nodes.
191 # The output is typically a much smaller device tree file.
192 quiet_cmd_fdtgrep = FDTGREP $@
193 cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
194 -n /chosen -O dtb | \
195 $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
196 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
198 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb
201 quiet_cmd_cpp_cfg = CFG $@
202 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
203 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
205 $(obj)/$(SPL_BIN).cfg: include/config.h
206 $(call if_changed,cpp_cfg)
209 ifdef CONFIG_VAR_SIZE_SPL
210 VAR_SIZE_PARAM = --vs
214 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
215 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
216 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
217 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
220 quiet_cmd_objcopy = OBJCOPY $@
221 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
223 OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
225 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
226 $(call if_changed,objcopy)
228 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
229 ifneq ($(CONFIG_SPL_TEXT_BASE),)
230 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
234 quiet_cmd_mksunxiboot = MKSUNXI $@
235 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
236 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin
237 $(call if_changed,mksunxiboot)
240 quiet_cmd_u-boot-spl = LD $@
241 cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
242 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
243 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
244 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
246 $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
247 $(call if_changed,u-boot-spl)
249 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
251 PHONY += $(u-boot-spl-dirs)
253 $(Q)$(MAKE) $(build)=$@
255 quiet_cmd_cpp_lds = LDS $@
256 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
257 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
259 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
260 $(call if_changed_dep,cpp_lds)
262 # read all saved command lines
264 targets := $(wildcard $(sort $(targets)))
265 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
267 ifneq ($(cmd_files),)
268 $(cmd_files): ; # Do not try to update included dependency files
275 # Declare the contents of the .PHONY variable as phony. We keep that
276 # information in a variable so we can use it in if_changed and friends.