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.
17 include $(srctree)/scripts/Kbuild.include
20 export CONFIG_SPL_BUILD
22 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
23 ifeq ($(CONFIG_TPL_BUILD),y)
24 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
27 # Enable garbage collection of un-used sections for SPL
28 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
29 LDFLAGS_FINAL += --gc-sections
31 ifeq ($(CONFIG_TPL_BUILD),y)
32 export CONFIG_TPL_BUILD
38 include $(TOPDIR)/config.mk
40 # We want the final binaries in this directory
41 ifeq ($(CONFIG_TPL_BUILD),y)
42 obj := $(OBJTREE)/tpl/
45 obj := $(OBJTREE)/spl/
48 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
50 ifdef CONFIG_SPL_START_S_PATH
51 START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
53 START_PATH := $(CPUDIR)
56 head-y := $(START_PATH)/start.o
57 head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
58 head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
59 head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
61 LIBS-y += arch/$(ARCH)/lib/
66 LIBS-y += $(CPUDIR)/$(SOC)/
68 LIBS-y += board/$(BOARDDIR)/
69 LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
71 LIBS-$(CONFIG_SPL_FRAMEWORK) += common/spl/
72 LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
73 LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
74 LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
75 LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
76 LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
77 LIBS-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
78 LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
79 LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
80 LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
82 LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
83 LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ \
85 LIBS-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
86 LIBS-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
87 LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
88 LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
89 LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
90 LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/
91 LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
92 LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
93 LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
94 LIBS-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
95 LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
96 LIBS-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
97 LIBS-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
98 LIBS-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
99 LIBS-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
101 ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
102 LIBS-y += arch/$(ARCH)/imx-common/
105 LIBS-$(CONFIG_ARM) += arch/arm/cpu/
106 LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
108 LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
111 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
112 PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o
113 PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
116 START := $(addprefix $(SPLTREE)/,$(head-y))
117 LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
119 __START := $(subst $(obj),,$(START))
120 __LIBS := $(subst $(obj),,$(LIBS))
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 := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
131 ifeq ($(wildcard $(LDSCRIPT)),)
132 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
134 ifeq ($(wildcard $(LDSCRIPT)),)
135 LDSCRIPT := $(TOPDIR)/arch/$(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 $(TOPDIR)/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 $(OBJTREE)/MLO: $(obj)u-boot-spl.bin
152 $(OBJTREE)/tools/mkimage -T omapimage \
153 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
155 $(OBJTREE)/MLO.byteswap: $(obj)u-boot-spl.bin
156 $(OBJTREE)/tools/mkimage -T omapimage -n byteswap \
157 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
159 $(OBJTREE)/SPL : $(obj)u-boot-spl.bin depend
160 $(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common $@
162 ALL-y += $(obj)$(SPL_BIN).bin
165 ALL-y += $(obj)$(BOARD)-spl.bin
171 ifdef CONFIG_VAR_SIZE_SPL
172 VAR_SIZE_PARAM = --vs
176 $(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
177 $(if $(wildcard $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
178 $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
179 $(OBJTREE)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
182 $(obj)$(SPL_BIN).bin: $(obj)$(SPL_BIN)
183 $(OBJCOPY) $(OBJCFLAGS) $(SPL_OBJCFLAGS) -O binary $< $@
185 LDFLAGS_$(SPL_BIN) += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL)
186 ifneq ($(CONFIG_SPL_TEXT_BASE),)
187 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
191 cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
192 --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
193 -Map $(SPL_BIN).map -o $(SPL_BIN)
195 $(obj)$(SPL_BIN): depend $(START) $(LIBS) $(obj)u-boot-spl.lds
202 $(MAKE) $(build) $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
204 $(obj)u-boot-spl.lds: $(LDSCRIPT) depend
205 $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
207 depend: $(obj).depend
210 # defines $(obj).depend target
211 include $(SRCTREE)/rules.mk