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) += drivers/ddr/mvebu/
64 libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
65 libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
66 libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
68 libs-$(CONFIG_SPL_LED_SUPPORT) += drivers/led/
69 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
70 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/
71 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/regulator/
72 libs-$(CONFIG_SPL_MTD_SUPPORT) += drivers/mtd/
73 libs-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/
74 libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
75 libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
76 libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
77 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
78 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
79 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
80 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
81 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
82 libs-$(CONFIG_SPL_RAM_SUPPORT) += drivers/ram/
83 libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
84 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
85 libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
86 libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
87 libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
88 libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
90 head-y := $(addprefix $(obj)/,$(head-y))
91 libs-y := $(addprefix $(obj)/,$(libs-y))
92 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
94 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
97 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
98 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
99 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
102 u-boot-spl-init := $(head-y)
103 u-boot-spl-main := $(libs-y)
106 ifdef CONFIG_SPL_LDSCRIPT
107 # need to strip off double quotes
108 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
111 ifeq ($(wildcard $(LDSCRIPT)),)
112 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
114 ifeq ($(wildcard $(LDSCRIPT)),)
115 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
117 ifeq ($(wildcard $(LDSCRIPT)),)
118 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
120 ifeq ($(wildcard $(LDSCRIPT)),)
121 $(error could not find linker script)
124 # Special flags for CPP when processing the linker script.
125 # Pass the version down so we can handle backwards compatibility
128 -include $(srctree)/include/u-boot/u-boot.lds.h \
129 -include $(objtree)/include/config.h \
131 $(shell $(LD) --version | \
132 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
134 quiet_cmd_mkimage = MKIMAGE $@
135 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
136 $(if $(KBUILD_VERBOSE:1=), >/dev/null)
138 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
140 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
142 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
143 $(call if_changed,mkimage)
145 MKIMAGEFLAGS_boot.bin = -T atmelimage
147 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
148 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
150 boot.bin: $(obj)/../tools/atmel_pmecc_params
153 boot.bin: $(obj)/u-boot-spl.bin
154 $(call if_changed,mkimage)
156 ALL-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
158 ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-dtb.bin
161 ALL-y += $(obj)/$(BOARD)-spl.bin
165 ALL-y += $(obj)/sunxi-spl.bin
168 ifeq ($(CONFIG_SYS_SOC),"at91")
174 quiet_cmd_cat = CAT $@
175 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
177 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN)-pad.bin \
178 $(obj)/$(SPL_BIN).dtb FORCE
179 $(call if_changed,cat)
181 # Create a file that pads from the end of u-boot-spl.bin to bss_end
182 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
183 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
184 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
186 # Pass the original device tree file through fdtgrep twice. The first pass
187 # removes any unwanted nodes (i.e. those which don't have the
188 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
189 # pass removes various unused properties from the remaining nodes.
190 # The output is typically a much smaller device tree file.
191 quiet_cmd_fdtgrep = FDTGREP $@
192 cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
193 -n /chosen -O dtb | \
194 $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
195 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
197 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb
200 quiet_cmd_cpp_cfg = CFG $@
201 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
202 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
204 $(obj)/$(SPL_BIN).cfg: include/config.h
205 $(call if_changed,cpp_cfg)
208 ifdef CONFIG_VAR_SIZE_SPL
209 VAR_SIZE_PARAM = --vs
213 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
214 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
215 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
216 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
219 quiet_cmd_objcopy = OBJCOPY $@
220 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
222 OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
224 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
225 $(call if_changed,objcopy)
227 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
228 ifneq ($(CONFIG_SPL_TEXT_BASE),)
229 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
233 quiet_cmd_mksunxiboot = MKSUNXI $@
234 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
235 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin
236 $(call if_changed,mksunxiboot)
239 quiet_cmd_u-boot-spl = LD $@
240 cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
241 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
242 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
243 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
245 $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
246 $(call if_changed,u-boot-spl)
248 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
250 PHONY += $(u-boot-spl-dirs)
252 $(Q)$(MAKE) $(build)=$@
254 quiet_cmd_cpp_lds = LDS $@
255 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
256 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
258 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
259 $(call if_changed_dep,cpp_lds)
261 # read all saved command lines
263 targets := $(wildcard $(sort $(targets)))
264 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
266 ifneq ($(cmd_files),)
267 $(cmd_files): ; # Do not try to update included dependency files
274 # Declare the contents of the .PHONY variable as phony. We keep that
275 # information in a variable so we can use it in if_changed and friends.