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 $(srctree)/scripts/Kbuild.include
24 UBOOTINCLUDE := -I$(obj)/include $(UBOOTINCLUDE)
26 -include $(obj)/include/config/auto.conf
27 -include $(obj)/include/autoconf.mk
29 ifeq ($(CONFIG_TPL_BUILD),y)
30 export CONFIG_TPL_BUILD
36 include $(srctree)/config.mk
38 # Enable garbage collection of un-used sections for SPL
39 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
40 LDFLAGS_FINAL += --gc-sections
43 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
46 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
48 ifdef CONFIG_SPL_START_S_PATH
49 START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
51 START_PATH := $(CPUDIR)
54 head-y := $(START_PATH)/start.o
55 head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
56 head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
57 head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
59 libs-y += arch/$(ARCH)/lib/
64 libs-y += $(CPUDIR)/$(SOC)/
66 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
67 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
69 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
70 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
71 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
72 libs-$(CONFIG_SPL_DM) += drivers/core/
73 libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
74 libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
75 libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
76 libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
77 libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
78 libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
79 libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
81 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
82 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/
83 libs-$(CONFIG_SPL_MTD_SUPPORT) += drivers/mtd/
84 libs-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
85 libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
86 libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
87 libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
88 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
89 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
90 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
91 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
92 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
93 libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
94 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
95 libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
96 libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
97 libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
98 libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
100 ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
101 libs-y += arch/$(ARCH)/imx-common/
104 libs-$(CONFIG_ARM) += arch/arm/cpu/
105 libs-$(CONFIG_PPC) += arch/powerpc/cpu/
107 head-y := $(addprefix $(obj)/,$(head-y))
108 libs-y := $(addprefix $(obj)/,$(libs-y))
109 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
111 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
114 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
115 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
116 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
119 u-boot-spl-init := $(head-y)
120 u-boot-spl-main := $(libs-y)
123 ifdef CONFIG_SPL_LDSCRIPT
124 # need to strip off double quotes
125 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
128 ifeq ($(wildcard $(LDSCRIPT)),)
129 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
131 ifeq ($(wildcard $(LDSCRIPT)),)
132 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
134 ifeq ($(wildcard $(LDSCRIPT)),)
135 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
137 ifeq ($(wildcard $(LDSCRIPT)),)
138 $(error could not find linker script)
141 # Special flags for CPP when processing the linker script.
142 # Pass the version down so we can handle backwards compatibility
145 -include $(srctree)/include/u-boot/u-boot.lds.h \
146 -include $(objtree)/include/config.h \
148 $(shell $(LD) --version | \
149 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
151 quiet_cmd_mkimage = MKIMAGE $@
152 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
153 $(if $(KBUILD_VERBOSE:1=), >/dev/null)
155 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
157 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
159 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
160 $(call if_changed,mkimage)
162 MKIMAGEFLAGS_boot.bin = -T atmelimage
164 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
165 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
167 boot.bin: $(obj)/../tools/atmel_pmecc_params
170 boot.bin: $(obj)/u-boot-spl.bin
171 $(call if_changed,mkimage)
173 ALL-y += $(obj)/$(SPL_BIN).bin
176 ALL-y += $(obj)/$(BOARD)-spl.bin
180 ifndef CONFIG_SPL_FEL
181 ALL-y += $(obj)/sunxi-spl.bin
185 ifeq ($(CONFIG_SYS_SOC),"at91")
192 ifdef CONFIG_VAR_SIZE_SPL
193 VAR_SIZE_PARAM = --vs
197 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
198 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
199 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
200 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
203 quiet_cmd_objcopy = OBJCOPY $@
204 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
206 OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
208 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
209 $(call if_changed,objcopy)
211 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
212 ifneq ($(CONFIG_SPL_TEXT_BASE),)
213 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
217 quiet_cmd_mksunxiboot = MKSUNXI $@
218 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
219 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin
220 $(call if_changed,mksunxiboot)
223 quiet_cmd_u-boot-spl = LD $@
224 cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
225 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
226 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
227 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
229 $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
230 $(call if_changed,u-boot-spl)
232 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
234 PHONY += $(u-boot-spl-dirs)
236 $(Q)$(MAKE) $(build)=$@
238 quiet_cmd_cpp_lds = LDS $@
239 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
240 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
242 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
243 $(call if_changed_dep,cpp_lds)
245 # read all saved command lines
247 targets := $(wildcard $(sort $(targets)))
248 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
250 ifneq ($(cmd_files),)
251 $(cmd_files): ; # Do not try to update included dependency files
258 # Declare the contents of the .PHONY variable as phony. We keep that
259 # information in a variable so we can use it in if_changed and friends.