spl/Makefile

   1 #
   2 # (C) Copyright 2000-2011
   3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 #
   5 # (C) Copyright 2011
   6 # Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
   7 #
   8 # (C) Copyright 2011
   9 # Texas Instruments Incorporated - http://www.ti.com/
  10 # Aneesh V <aneesh@ti.com>
  11 #
  12 # SPDX-License-Identifier:      GPL-2.0+
  13 #
  14 # Based on top-level Makefile.
  15 #
  16
  17 src := $(obj)
  18
  19 # Create output directory if not already present
  20 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
  21
  22 include $(srctree)/scripts/Kbuild.include
  23
  24 CONFIG_SPL_BUILD := y
  25 export CONFIG_SPL_BUILD
  26
  27 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
  28 ifeq ($(CONFIG_TPL_BUILD),y)
  29 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
  30 endif
  31
  32 ifeq ($(CONFIG_TPL_BUILD),y)
  33 export CONFIG_TPL_BUILD
  34 SPL_BIN := u-boot-tpl
  35 else
  36 SPL_BIN := u-boot-spl
  37 endif
  38
  39 include include/config.mk
  40
  41 ifeq ($(CONFIG_TPL_BUILD),y)
  42   -include include/tpl-autoconf.mk
  43 else
  44   -include include/spl-autoconf.mk
  45 endif
  46
  47 include $(srctree)/config.mk
  48
  49 # Enable garbage collection of un-used sections for SPL
  50 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
  51 LDFLAGS_FINAL += --gc-sections
  52
  53 # FIX ME
  54 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  55                                                         $(NOSTDINC_FLAGS)
  56 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
  57
  58 # Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
  59 quiet_cmd_autoconf = GEN     $@
  60       cmd_autoconf = \
  61         $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
  62                 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
  63         rm $@.tmp
  64
  65 include/tpl-autoconf.mk: include/config.h
  66         $(call cmd,autoconf)
  67
  68 include/spl-autoconf.mk: include/config.h
  69         $(call cmd,autoconf)
  70
  71 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  72
  73 ifdef   CONFIG_SPL_START_S_PATH
  74 START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
  75 else
  76 START_PATH := $(CPUDIR)
  77 endif
  78
  79 head-y := $(START_PATH)/start.o
  80 head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
  81 head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
  82 head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
  83
  84 libs-y += arch/$(ARCH)/lib/
  85
  86 libs-y += $(CPUDIR)/
  87
  88 ifdef SOC
  89 libs-y += $(CPUDIR)/$(SOC)/
  90 endif
  91 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  92 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  93
  94 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
  95 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
  96 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
  97 libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
  98 libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
  99 libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
 100 libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
 101 libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
 102 libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
 103 libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
 104 libs-y += fs/
 105 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
 106 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/
 107 libs-$(CONFIG_SPL_MTD_SUPPORT) += drivers/mtd/
 108 libs-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
 109 libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
 110 libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
 111 libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
 112 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
 113 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
 114 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
 115 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
 116 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
 117 libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
 118 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
 119 libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
 120 libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
 121 libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
 122 libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
 123
 124 ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
 125 libs-y += arch/$(ARCH)/imx-common/
 126 endif
 127
 128 libs-$(CONFIG_ARM) += arch/arm/cpu/
 129 libs-$(CONFIG_PPC) += arch/powerpc/cpu/
 130
 131 head-y          := $(addprefix $(obj)/,$(head-y))
 132 libs-y          := $(addprefix $(obj)/,$(libs-y))
 133 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
 134
 135 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
 136
 137 # Add GCC lib
 138 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 139 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 140 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
 141 endif
 142
 143 u-boot-spl-init := $(head-y)
 144 u-boot-spl-main := $(libs-y)
 145
 146 # Linker Script
 147 ifdef CONFIG_SPL_LDSCRIPT
 148 # need to strip off double quotes
 149 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 150 endif
 151
 152 ifeq ($(wildcard $(LDSCRIPT)),)
 153         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
 154 endif
 155 ifeq ($(wildcard $(LDSCRIPT)),)
 156         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
 157 endif
 158 ifeq ($(wildcard $(LDSCRIPT)),)
 159         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
 160 endif
 161 ifeq ($(wildcard $(LDSCRIPT)),)
 162 $(error could not find linker script)
 163 endif
 164
 165 # Special flags for CPP when processing the linker script.
 166 # Pass the version down so we can handle backwards compatibility
 167 # on the fly.
 168 LDPPFLAGS += \
 169         -include $(srctree)/include/u-boot/u-boot.lds.h \
 170         -include $(objtree)/include/config.h \
 171         -DCPUDIR=$(CPUDIR) \
 172         $(shell $(LD) --version | \
 173           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 174
 175 quiet_cmd_mkimage = MKIMAGE $@
 176 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 177         $(if $(KBUILD_VERBOSE:1=), >/dev/null)
 178
 179 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
 180
 181 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 182
 183 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
 184         $(call if_changed,mkimage)
 185
 186 ALL-y   += $(obj)/$(SPL_BIN).bin
 187
 188 ifdef CONFIG_SAMSUNG
 189 ALL-y   += $(obj)/$(BOARD)-spl.bin
 190 endif
 191
 192 all:    $(ALL-y)
 193
 194 ifdef CONFIG_SAMSUNG
 195 ifdef CONFIG_VAR_SIZE_SPL
 196 VAR_SIZE_PARAM = --vs
 197 else
 198 VAR_SIZE_PARAM =
 199 endif
 200 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 201         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 202         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 203         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 204 endif
 205
 206 quiet_cmd_objcopy = OBJCOPY $@
 207 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 208
 209 OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
 210
 211 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
 212         $(call if_changed,objcopy)
 213
 214 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 215 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 216 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 217 endif
 218
 219 quiet_cmd_u-boot-spl = LD      $@
 220       cmd_u-boot-spl = cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 221                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
 222                        $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
 223                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)
 224
 225 $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds
 226         $(call cmd,u-boot-spl)
 227
 228 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 229
 230 PHONY += $(u-boot-spl-dirs)
 231 $(u-boot-spl-dirs):
 232         $(Q)$(MAKE) $(build)=$@
 233
 234 quiet_cmd_cpp_lds = LDS     $@
 235 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 236                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
 237
 238 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 239         $(call if_changed_dep,cpp_lds)
 240
 241 # read all saved command lines
 242
 243 targets := $(wildcard $(sort $(targets)))
 244 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 245
 246 ifneq ($(cmd_files),)
 247   $(cmd_files): ;       # Do not try to update included dependency files
 248   include $(cmd_files)
 249 endif
 250
 251 PHONY += FORCE
 252 FORCE:
 253
 254 # Declare the contents of the .PHONY variable as phony.  We keep that
 255 # information in a variable so we can use it in if_changed and friends.
 256 .PHONY: $(PHONY)