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.
18 export CONFIG_SPL_BUILD
20 ifeq ($(CONFIG_TPL_BUILD),y)
21 export CONFIG_TPL_BUILD
27 include $(TOPDIR)/config.mk
29 # We want the final binaries in this directory
30 ifeq ($(CONFIG_TPL_BUILD),y)
31 obj := $(OBJTREE)/tpl/
34 obj := $(OBJTREE)/spl/
37 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
39 ifdef CONFIG_SPL_START_S_PATH
40 START_PATH := $(subst ",,$(CONFIG_SPL_START_S_PATH))
42 START_PATH := $(CPUDIR)
45 START := $(START_PATH)/start.o
47 START += $(START_PATH)/start16.o
48 START += $(START_PATH)/resetvec.o
51 START += $(START_PATH)/resetvec.o
54 START += $(START_PATH)/resetvec.o
57 LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
59 LIBS-y += $(CPUDIR)/lib$(CPU).o
61 LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
64 LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
65 ifdef CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
66 LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
70 LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
74 LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
76 LIBS-y += board/$(BOARDDIR)/lib$(BOARD).o
77 LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
79 LIBS-$(CONFIG_SPL_FRAMEWORK) += common/spl/libspl.o
80 LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/libcommon.o
81 LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/libdisk.o
82 LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/libi2c.o
83 LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/libgpio.o
84 LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/libmmc.o
85 LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/libserial.o
86 LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/libspi_flash.o
87 LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/libspi.o
88 LIBS-$(CONFIG_SPL_FAT_SUPPORT) += fs/fat/libfat.o
89 LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o
90 LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/libpower.o \
91 drivers/power/pmic/libpmic.o
92 LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/libnand.o
93 LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/libonenand.o
94 LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/libdma.o
95 LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/memory.o
96 LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/libnet.o
97 LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/libnet.o
98 LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/libphy.o
99 LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/libphy.o
100 LIBS-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/libusb_musb-new.o
101 LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/libusb_gadget.o
102 LIBS-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/libwatchdog.o
104 ifneq (,$(CONFIG_MX23)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
105 LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o
108 LIBS-$(CONFIG_ARM) += arch/arm/cpu/libcpu.o
110 ifneq ($(CONFIG_MX23)$(CONFIG_MX35),)
111 LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o
115 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
116 PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o
117 PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
120 START := $(addprefix $(SPLTREE)/,$(START))
121 LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
123 __START := $(subst $(obj),,$(START))
124 __LIBS := $(subst $(obj),,$(LIBS))
127 ifdef CONFIG_SPL_LDSCRIPT
128 # need to strip off double quotes
129 LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT)))
132 ifeq ($(wildcard $(LDSCRIPT)),)
133 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
135 ifeq ($(wildcard $(LDSCRIPT)),)
136 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
138 ifeq ($(wildcard $(LDSCRIPT)),)
139 LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot-spl.lds
141 ifeq ($(wildcard $(LDSCRIPT)),)
142 $(error could not find linker script)
145 build := -f $(TOPDIR)/scripts/Makefile.build -C
147 # Special flags for CPP when processing the linker script.
148 # Pass the version down so we can handle backwards compatibility
151 -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
152 -include $(OBJTREE)/include/config.h \
154 $(shell $(LD) --version | \
155 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
157 $(OBJTREE)/MLO: $(obj)u-boot-spl.bin
158 $(OBJTREE)/tools/mkimage -T omapimage \
159 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
161 $(OBJTREE)/MLO.byteswap: $(obj)u-boot-spl.bin
162 $(OBJTREE)/tools/mkimage -T omapimage -n byteswap \
163 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
165 $(OBJTREE)/SPL : $(obj)u-boot-spl.bin depend
166 $(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common $@
168 ALL-y += $(obj)$(SPL_BIN).bin
171 ALL-y += $(obj)$(BOARD)-spl.bin
177 $(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
178 $(OBJTREE)/tools/mk$(BOARD)spl \
179 $(obj)u-boot-spl.bin $(obj)$(BOARD)-spl.bin
182 $(obj)$(SPL_BIN).bin: $(obj)$(SPL_BIN)
183 $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@
186 cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
187 --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
188 -Map $(SPL_BIN).map -o $(SPL_BIN)
190 $(obj)$(SPL_BIN): depend $(START) $(LIBS) $(obj)u-boot-spl.lds
193 # Tentative step for Kbuild-style makefiles coexist with conventional U-Boot style makefiles
194 # U-Boot conventional sub makefiles always include some other makefiles.
195 # So, the build system searches a line beginning with "include" before entering into the sub makefile
196 # in order to distinguish which style it is.
197 # If the Makefile include a "include" line, we assume it is an U-Boot style makefile.
198 # Otherwise, it is treated as a Kbuild-style makefile.
200 if grep -q "^include" $1/Makefile; then \
203 $(MAKE) -C $1 -f $(TOPDIR)/scripts/Makefile.build; \
204 mv $(dir $@)built-in.o $@; \
207 # We do not need to build $(START) explicitly.
208 # It is built while we are at $(CPUDIR)/lib$(CPU).o build.
210 if grep -q "^include" $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))Makefile; then \
211 $(MAKE) -C $(SRCTREE)/$(START_PATH) $@; \
215 +$(call select_makefile, $(SRCTREE)$(dir $(subst $(SPLTREE),,$@)))
217 $(obj)u-boot-spl.lds: $(LDSCRIPT) depend
218 $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
220 depend: $(obj).depend
223 # defines $(obj).depend target
224 include $(SRCTREE)/rules.mk